CN118515408B - Equipment and method for solid waste pretreatment of landfill and stockpiling sludge site - Google Patents
Equipment and method for solid waste pretreatment of landfill and stockpiling sludge site Download PDFInfo
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- CN118515408B CN118515408B CN202410977483.4A CN202410977483A CN118515408B CN 118515408 B CN118515408 B CN 118515408B CN 202410977483 A CN202410977483 A CN 202410977483A CN 118515408 B CN118515408 B CN 118515408B
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- 239000010802 sludge Substances 0.000 title claims abstract description 147
- 239000002910 solid waste Substances 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002351 wastewater Substances 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 238000001556 precipitation Methods 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 11
- 238000012546 transfer Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 8
- 239000003153 chemical reaction reagent Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- 239000008394 flocculating agent Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 3
- 230000003311 flocculating effect Effects 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 abstract description 32
- 238000006297 dehydration reaction Methods 0.000 abstract description 32
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 208000005156 Dehydration Diseases 0.000 description 30
- 238000007789 sealing Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000011343 solid material Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 241000220317 Rosa Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
- B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/12—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged below container
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/126—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using drum filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention provides equipment and a method for pretreating solid waste in a landfill and stockpiling sludge field, and belongs to the technical field of sludge treatment. The device comprises a supporting main body, a conveying mechanism for controlling the feeding of solid waste sludge, a filter pressing mechanism arranged on the supporting main body and connected with the conveying mechanism, a mud cake transferring mechanism arranged at the lower end of the filter pressing mechanism, and a mud treatment mechanism connected with the filter pressing mechanism; the device is suitable for sludge pretreatment of a landfill and stockpiled sludge site, solid waste sludge with high water content is intermittently transferred into a filter pressing mechanism through a conveying mechanism, the content of the entered solid waste sludge can be flexibly controlled according to the treatment capacity of the filter pressing mechanism and the characteristics of the sludge, the solid waste sludge is subjected to filter pressing dehydration, the water content of the solid waste sludge can be effectively reduced, the dryness of the sludge is improved, the transportation convenience is improved, and the sludge wastewater after filter pressing dehydration is purified through a sludge treatment mechanism, so that harmful substances are effectively removed, and the progress and the application of a sludge treatment technology are promoted.
Description
Technical Field
The invention belongs to the technical field of sludge treatment, and particularly relates to equipment and a method for solid waste pretreatment of a landfill and stockpiling sludge site.
Background
Solid waste sludge generally refers to byproducts generated during sewage treatment, including primary sludge, surplus sludge, humic sludge, chemical sludge, and the like. These sludges contain a high proportion of organic matter, are fine in particles, have a small density, are in a colloidal structure, and are difficult to carry out thorough solid-liquid separation by sedimentation.
The landfill or the stockpiling of the sludge has the advantages that the water content is high due to the fact that the time is long, the interaction of rainfall and groundwater is high, the volume is huge, the transportation and treatment cost is high, the risk of environmental pollution in emergency treatment is increased, the filter pressing treatment is a method for forcing the water in the sludge to be separated out through filter cloth or other filter media by applying external pressure, the water content of the sludge can be remarkably reduced, the volume is reduced, the stability is improved, and the subsequent transportation and treatment are convenient.
The existing solid waste pretreatment equipment is mainly designed aiming at a sludge generation unit, has large volume, does not have waste water collecting and disposing equipment and cannot be used on a sludge landfill and storage site.
Disclosure of Invention
Aiming at the problems, the invention provides equipment and a method for pretreating solid wastes in a landfill and stockpiled sludge site.
The technical scheme of the invention is as follows: the equipment for pretreating solid waste in a landfill and stockpiling sludge site comprises a supporting main body, a conveying mechanism for controlling solid waste sludge to be fed, a filter pressing mechanism arranged on the supporting main body and connected with the conveying mechanism, a mud cake transferring mechanism arranged below the filter pressing mechanism, and a mud treatment mechanism connected with the filter pressing mechanism;
The filter pressing mechanism comprises a filter pressing box connected with the support main body through a second mounting frame, a support mounting plate which is arranged at the bottom of the filter pressing box and the upper end of which penetrates through a plurality of strip-shaped openings which are distributed in parallel, a horizontal mounting column which is arranged in the filter pressing box and is positioned above the support mounting plate, a plurality of filter pressing plates which can slide left and right along the horizontal mounting column, two hydraulic driving rods which are respectively connected at the outer sides of the horizontal mounting columns at the left end and the right end in a one-to-one correspondence manner, two U-shaped mounting frames which are respectively connected with the front side and the rear side of the filter pressing box through electric telescopic rods and are symmetrically distributed, and a plurality of drawing plugging strips which are arranged at the inner sides of the U-shaped mounting frames and penetrate into each strip-shaped opening, wherein a temporary storage box connected with the conveying mechanism is arranged at the upper end of the support main body, a liquid outlet pipe is arranged at the side wall of the filter pressing box, a blanking port is arranged at the upper end of the filter pressing box, an automatic opening and closing plate is arranged at the bottom of the temporary storage box, and a compression rod is arranged between two adjacent filter pressing plates;
The mud cake transferring mechanism comprises a horizontal sliding rail positioned below the filter pressing box, a sliding transferring frame in sliding connection with the horizontal sliding rail, and a mud cake storage box arranged in the sliding transferring frame, wherein a mounting opening is formed in the side wall of the sliding transferring frame, and a shielding cover plate is hinged to the mounting opening;
The slurry treatment mechanism comprises a precipitation reaction box which is connected with the liquid outlet pipe and the temporary storage box, wherein an overflow port is formed in the upper end of the precipitation reaction box, a reagent adding box which is connected with the upper end of the precipitation reaction box, and a clear water storage box which is connected with the overflow port through a pipeline.
Further, be equipped with centrifugal roller in the temporary storage box, centrifugal roller one end has first rotating electrical machines through rotation axis connection, and centrifugal roller bottom is equipped with the blanking pipe, blanking pipe department is equipped with the solenoid valve, temporary storage box lateral wall pass through the connecting pipe with the drain pipe is connected.
Description: after solid waste sludge is transferred to the temporary storage box through the conveying mechanism, the centrifugal roller is driven to rotate through the first rotating motor, part of slurry waste water in the solid waste sludge is thrown out to the bottom of the temporary storage box under the action of centrifugal force and flows into the precipitation reaction box, then, the electromagnetic valve and the automatic start-stop plate are opened, the dehydrated solid waste sludge in the centrifugal roller falls between each filter pressing plate in the filter pressing box through the blanking pipe and the blanking port, at the moment, each filter pressing plate slides on the horizontal installation column and is mutually close to carry out filter pressing treatment on sludge, the solid waste sludge is formed into mud cakes and slurry waste water after being subjected to filter pressing, the slurry waste water flows into the precipitation reaction box through the liquid outlet pipe, each electric telescopic rod is started, each filter pressing plate slides on the horizontal installation column and is mutually separated through the hydraulic driving rod, the mud cakes fall to the mud cake storage box through each strip opening, and then, in the process is carried out, the centrifugal roller is used for carrying out preliminary filter pressing treatment on the solid waste sludge before carrying out filter pressing treatment, the solid waste water can be separated quickly, the solid waste water can be quickly removed, the overall filter pressing efficiency is improved, and the overall drying efficiency is improved, and the convenience of the sludge can be improved.
Further, conveying mechanism adopts electronic belt output machine, and conveying mechanism's pan feeding end is equipped with broken rose box, be equipped with the broken pole of gradient through second rotating electrical machines driven in the broken rose box, the broken pole lateral wall of gradient is equipped with a plurality of installation circles from top to bottom, every the installation circle outer wall all is equipped with a plurality of broken blades along circumference, and from top to bottom each installation circle that distributes on the quantity of broken blade increases in proper order.
Description: the solid waste sludge with high water content placed in the crushing filter box is automatically transported into the temporary storage box through the electric belt type output machine, the electric belt type output machine continuously works, manual carrying is reduced, the transportation efficiency is improved, when the solid waste sludge is placed in the crushing filter box, the gradient crushing rod is driven to rotate through the second rotating motor, the crushing blades on the outer wall of each mounting ring are driven to rotate, so that large solid materials in the solid waste sludge are crushed into small blocks, the subsequent treatment and transportation are facilitated, and during the crushing treatment, the number of the crushing blades on each mounting ring distributed from top to bottom is sequentially increased, so that various materials in the solid waste sludge can be effectively crushed, the sludge treatment quality is improved, and the subsequent dehydration and transportation are facilitated.
Further, the left side and the right side of the drawing plugging strip are respectively connected with the corresponding strip-shaped openings in a sliding manner, and in the two drawing plugging strips which are distributed relatively, one front end of the drawing plugging strip is provided with a plug-in column, and the other side of the drawing plugging strip opposite to the plug-in column is provided with a plug-in hole.
Description: the left side and the right side of the drawing plugging strip are respectively in sliding connection with the corresponding strip-shaped openings, so that the drawing plugging strip and the strip-shaped openings can be tightly attached, the possibility of leakage of slurry and waste water after filter pressing is reduced, the sealing performance is improved, the opposite sides of the two drawing plugging strips are connected through the plug posts and the plug holes, the sealing performance and the connection firmness are improved, the drawing plugging strip and the strip-shaped openings can slide smoothly and the plug posts are smoothly inserted into the plug holes in order to ensure that the drawing plugging strip and the strip-shaped openings can be washed after the filter pressing treatment is carried out once.
Further, the left and right sides of filter-pressing board are the matrix respectively and distribute and have a plurality of pressure filter pieces, horizontal erection column outer wall evenly is equipped with a plurality of horizontal sliding grooves who link up horizontal erection column along circumference, horizontal sliding groove's cross section is T, and each filter-pressing board center department is equipped with the slip circle mouth, slip circle mouth inner wall be equipped with horizontal sliding groove one-to-one's sliding strip.
Description: when the sludge is subjected to filter pressing treatment between two adjacent filter pressing plates, the sludge is filter-pressed into a plurality of small blocks through each filter pressing block on the opposite sides of the two adjacent filter pressing plates, so that on one hand, water is easier to separate from the sludge, the dehydration efficiency is improved, on the other hand, the small blocks of sludge after filter pressing are small in size, convenient to convey, store and treat, the treatment cost is reduced, and when the filter pressing plates slide left and right on a horizontal installation column, the installation compactness of the filter pressing plates is improved through sliding connection of the sliding strips and the horizontal sliding grooves.
Further, the upper end of the outer wall of the shielding cover plate is provided with a supporting filler strip, the inner wall of the shielding cover plate is provided with a protection plate, and the protection plate is of a detachable structure.
Description: when opening and shelter from the apron and deposit the case with mud cake and take out, rotate to supporting with ground contact through shelter from the apron, make things convenient for the mud cake to deposit the business turn over of case and remove, and set up the purpose that supports the filler strip and avoid shelter from apron direct and ground contact, shelter from the apron inner wall and set up the guard plate, all in order to avoid wearing and tearing, guarantee to shelter from the life of apron.
Further, the conveying mechanism with the junction of temporary storage box is equipped with the intermittent buffer box, intermittent buffer box lateral wall is close to temporary storage box one side and is equipped with automatic opening and close the subassembly, automatic opening and close the subassembly including locating the first mounting bracket of intermittent buffer box upper end, upper end pass through pneumatic cylinder drive and the bottom runs through the intermittent buffer box and extends to the baffle plate of intermittent buffer box inside, locate electronic timer on the first mounting bracket.
Description: when solid waste sludge is transferred to the temporary storage box through the conveying mechanism, the solid waste sludge can be firstly introduced into the intermittent buffer box, in order to control the content of the solid waste sludge entering the centrifugal roller, the automatic opening and closing assembly is used for timing the solid waste sludge introduced into the centrifugal roller through the electronic timer, after the preset time length is reached, the baffle plate is driven to move downwards to plug the feeding part of the temporary storage box through the hydraulic cylinder, the overload of the centrifugal roller due to the disposable treatment of excessive sludge can be avoided through controlling the input quantity of the solid waste sludge, the service life of the centrifugal roller is ensured, and meanwhile, the intermittent feeding of the solid waste sludge can be controlled.
Further, the bottom end of the baffle plate is provided with a horizontal limiting plate vertical to the baffle plate.
Description: when the hydraulic cylinder drives the baffle plate to move upwards, the baffle plate is limited by the horizontal limiting plate, so that overflow of solid waste sludge caused by complete extraction of the baffle plate is avoided.
The invention also discloses a landfill and stockpiling sludge site solid waste pretreatment method, which is based on the equipment for landfill and stockpiling sludge site solid waste pretreatment, and comprises the following steps:
S1, firstly, conveying solid waste sludge to be treated into a temporary storage box through a conveying mechanism for temporary storage, and opening an automatic opening and closing plate when filter pressing treatment is required, wherein the solid waste sludge falls into a filter pressing box through a blanking port;
S2, starting a hydraulic driving rod to enable each filter pressing plate to slide on the horizontal mounting column and approach each other, so that filter pressing treatment is carried out on the solid waste sludge, mud cakes and mud waste water are formed after the solid waste sludge is filter pressed, and the mud waste water flows into a precipitation reaction box through a liquid outlet pipe;
s3, placing the mud cake storage box in a sliding transfer frame, and sliding the sliding transfer frame to the right lower end of the filter pressing box;
S4, starting each electric telescopic rod, driving each drawing plugging strip on two U-shaped installation racks which are distributed oppositely to be separated from each other through the electric telescopic rods, enabling each filter press plate to slide on a horizontal installation column through a hydraulic driving rod and to be separated from each other, enabling mud cakes to fall into a mud cake storage box through each strip-shaped opening, and then transferring;
S5, adding a flocculating agent in the reagent adding box into the precipitation reaction box, flocculating and precipitating solid particles in the slurry wastewater flowing into the precipitation reaction box through a liquid outlet pipe by flocculation of the flocculating agent, and flowing the precipitated clear water into the clear water storage box through an overflow port.
Compared with the prior art, the invention has the beneficial effects that:
(1) The solid waste pretreatment equipment is suitable for sludge pretreatment of a landfill and stockpiled sludge site, when the equipment is used, solid waste sludge with high water content is intermittently transferred into a filter pressing mechanism through a conveying mechanism, the content of the entered solid waste sludge can be flexibly controlled according to the treatment capacity of the filter pressing mechanism and the characteristics of the solid waste sludge, the solid waste sludge is subjected to filter pressing and dehydration, the water content of the solid waste sludge can be effectively reduced, the dryness of the sludge is improved, the transportation convenience is improved, dehydrated sludge cakes are transferred through a sludge cake transfer mechanism and are subjected to subsequent treatment, and the sludge wastewater after filter pressing and dehydration is collected and purified through a sludge treatment mechanism, so that harmful substances are effectively removed, the environmental pollution is reduced, and the improvement and the application of a solid waste sludge treatment technology are facilitated;
(2) Before filter pressing treatment, the solid waste sludge drives the gradient crushing rod to rotate through the second rotating motor and drives the crushing blades on the outer wall of each mounting ring to rotate, so that large solid materials in the solid waste sludge are crushed into small pieces, subsequent treatment and transportation are facilitated, and during the crushing treatment, the number of the crushing blades on each mounting ring distributed from top to bottom is sequentially increased, so that various materials in the solid waste sludge can be effectively crushed, the treatment quality is improved, the subsequent dehydration and transportation are facilitated, the solid waste sludge is transferred into the temporary storage box through the conveying mechanism, the primary centrifugal water filtering treatment is carried out on the solid waste sludge through the centrifugal roller, solid and liquid can be rapidly separated, the burden of the subsequent filter pressing treatment is reduced, the overall treatment efficiency is improved, and meanwhile, the water content of the solid waste sludge can be effectively reduced; in the process that solid waste sludge is transferred to the temporary storage box through the conveying mechanism, the solid waste sludge can be firstly introduced into the intermittent buffer box, the input quantity of the solid waste sludge is controlled through the automatic opening and closing component, overload of the centrifugal roller due to one-time treatment of excessive sludge can be avoided, the service life of the centrifugal roller is ensured, and meanwhile, intermittent feeding of the solid waste sludge can be controlled.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of a filter press plate of the present invention;
FIG. 3 is an enlarged view of the invention at A in FIG. 2;
FIG. 4 is a top view of the installation of the sliding transfer frame and horizontal slide rail of the present invention;
FIG. 5 is a schematic view showing the external structure of the sliding transfer frame of the present invention;
FIG. 6 is a top plan view of the installation of the pull block bar of the present invention on a support mounting plate;
FIG. 7 is a schematic view of the structure of the automatic opening and closing assembly of the present invention;
FIG. 8 is a schematic view of the mounting structure of the horizontal stop plate of the present invention at the bottom end of the baffle plate;
FIG. 9 is a schematic view of the mounting structure of the mounting ring of the present invention on a gradient breaker bar;
Wherein, 1-support body, 2-conveyor mechanism, 20-crushing filter tank, 21-second rotating motor, 22-gradient crushing rod, 220-mounting ring, 221-crushing blade, 23-batch buffer tank, 24-automatic opening and closing component, 240-first mounting frame, 241-hydraulic cylinder, 242-baffle plate, 243-electronic timer, 244-horizontal limit plate, 3-filter press mechanism, 30-filter press tank, 300-mounting frame, 301-temporary storage box, 302-drain pipe, 303-blanking port, 304-automatic opening and closing plate, 31-support mounting plate, 310-bar-shaped opening, 32-horizontal mounting column, 320-horizontal sliding groove, 33-filter press plate, 330-filter press block 331-sliding round mouth, 332-sliding strip, 34-hydraulic driving rod, 35-U-shaped mounting frame, 350-electric telescopic rod, 36-drawing plugging strip, 360-plug column, 361-plug hole, 37-centrifugal roller, 370-blanking pipe, 371-electromagnetic valve, 38-first rotating motor, 4-mud cake transfer mechanism, 40-horizontal sliding rail, 41-sliding transfer frame, 410-installation opening, 411-shielding cover plate, 412-supporting pad strip, 413-shielding plate, 42-mud cake storage box, 5-mud processing mechanism, 50-precipitation reaction box, 500-overflow port, 51-reagent adding box, 52-clear water storage box and 6-compression rod.
Detailed Description
The present invention will be described in detail with reference to examples.
Example 1: as shown in fig. 1, the equipment for pretreating solid waste in a landfill and stockpiling sludge field comprises a supporting main body 1, a conveying mechanism 2 for controlling solid waste sludge to be fed, a filter pressing mechanism 3 arranged on the supporting main body 1 and connected with the conveying mechanism 2, a mud cake transferring mechanism 4 arranged below the filter pressing mechanism 3, and a mud treatment mechanism 5 connected with the filter pressing mechanism 3, wherein the conveying mechanism 2 adopts an electric belt type output machine, and a rain shed can be arranged above the supporting main body 1, the conveying mechanism 2, the filter pressing mechanism 3 and the mud treatment mechanism 5, and the rain shed adopts the prior art (not shown in the figure), so that the whole equipment has a rain-proof function and cannot cause secondary pollution of sludge to soil and groundwater in the field; meanwhile, rainwater is prevented from directly falling on the equipment, so that erosion and damage of water to the equipment are reduced, and the service life of the equipment is ensured;
As shown in fig. 1 and 6, the filter pressing mechanism 3 comprises a filter pressing box 30 connected with a support main body 1 through a second mounting frame 300, a support mounting plate 31 arranged at the bottom of the filter pressing box 30 and provided with 6 parallel strip-shaped openings 310 in a penetrating manner at the upper end, a horizontal mounting column 32 arranged in the filter pressing box 30 and positioned above the support mounting plate 31, 6 filter pressing plates 33 capable of sliding left and right along the horizontal mounting column 32, two hydraulic driving rods 34 respectively connected at the outer sides of the horizontal mounting columns 32 at the left end and the right end in a one-to-one correspondence manner, two U-shaped mounting frames 35 respectively connected with the front side and the rear side of the filter pressing box 30 through electric telescopic rods 350 and symmetrically distributed, a plurality of drawing plugging strips 36 arranged at the inner sides of the two U-shaped mounting frames 35 and penetrating through the strip-shaped openings 310, a temporary storage box 301 connected with the conveying mechanism 2 is arranged at the upper end of the support main body 1, a liquid outlet pipe 302 is arranged at the side wall of the filter pressing box 30, a blanking opening is arranged at the upper end of the filter pressing box 30, an automatic opening and closing plate 304 is arranged at the bottom of the temporary storage box 301, a compression rod 6 is arranged between the two adjacent filter pressing plates 33, wherein the hydraulic driving rods 34, the automatic opening and closing plates 350 and the compression rod 6 are respectively adopted by the existing technology;
The left side and the right side of the drawing sealing strip 36 are respectively connected with the corresponding strip-shaped openings 310 in a sliding manner, and in the two drawing sealing strips 36 which are distributed oppositely, the front end of one drawing sealing strip 36 is provided with a plug-in column 360, the opposite side of the other drawing sealing strip 36 to the plug-in column 360 is provided with a plug-in hole 361, the left side and the right side of the drawing sealing strip 36 are respectively connected with the corresponding strip-shaped openings 310 in a sliding manner, so that the tight fit between the drawing sealing strip 36 and the strip-shaped openings 310 can be ensured, the possibility of leakage of mud and wastewater after filter pressing is reduced, the sealing performance is improved, and the opposite sides of the two drawing sealing strips 36 are connected with the plug-in hole 361 through the plug-in column 360, the sealing performance and the connection reliability are improved, and the drawing sealing strip 36 and the strip-shaped openings 310 can be washed after each filter pressing treatment is performed once in order to ensure smooth sliding between the drawing sealing strip 36 and the strip-shaped openings 310 and smooth insertion of the plug-in hole 361;
As shown in fig. 2 and 3, 18 filter pressing blocks 330 are respectively distributed on the left side and the right side of the filter pressing plate 33 in a matrix manner, 4 horizontal sliding grooves 320 penetrating through the horizontal mounting columns 32 are uniformly formed in the outer wall of the horizontal mounting columns 32 along the circumferential direction, the cross section of each horizontal sliding groove 320 is in a T shape, a sliding round opening 331 is formed in the center of each filter pressing plate 33, sliding strips 332 corresponding to the horizontal sliding grooves 320 one by one are arranged on the inner wall of each sliding round opening 331, when sludge is subjected to filter pressing treatment between two adjacent filter pressing plates 33, the sludge is subjected to filter pressing into 18 small blocks through each filter pressing block 330 on the opposite sides of the two adjacent filter pressing plates 33, on one hand, moisture is more easily separated from the sludge, so that the dehydration efficiency is improved, and on the other hand, the small blocks of the sludge after filter pressing are small in size, the subsequent conveying, storing and handling are facilitated, the treatment cost is reduced, and when the filter pressing plates 33 slide left and right on the horizontal mounting columns 32, the installation compactness of the filter pressing plates 33 is improved through the sliding connection of the sliding strips 332 and the horizontal sliding grooves 320;
As shown in fig. 1,4 and 5, the mud cake transferring mechanism 4 comprises a horizontal sliding rail 40 positioned below the filter pressing box 30, a sliding transferring frame 41 in sliding connection with the horizontal sliding rail 40, and a mud cake storage box 42 placed in the sliding transferring frame 41, wherein a mounting opening 410 is formed in the side wall of the sliding transferring frame 41, and a shielding cover plate 411 is hinged at the mounting opening 410; the upper end of the outer wall of the shielding cover plate 411 is provided with a supporting filler strip 412, the inner wall of the shielding cover plate 411 is provided with a protection plate 413, the protection plate 413 is of a detachable structure, when the shielding cover plate 411 is opened to take out the mud cake storage box 42, the mud cake storage box 42 is supported by being rotated to be in contact with the ground through the shielding cover plate 411, the mud cake storage box 42 can conveniently move in and out, the purpose of the supporting filler strip 412 is to avoid the shielding cover plate 411 from being in direct contact with the ground, and the protection plate 413 is arranged on the inner wall of the shielding cover plate 411, so that abrasion is avoided, and the service life of the shielding cover plate 411 is ensured;
The slurry treatment mechanism 5 comprises a precipitation reaction box 50 connected with a liquid outlet pipe 302 and a temporary storage box 301, the upper end of which is provided with an overflow port 500, a reagent adding box 51 connected with the upper end of the precipitation reaction box 50, and a clear water storage box 52 connected with the overflow port 500 through a pipeline.
Example 2: the embodiment describes a landfill and stockpiling sludge site solid waste pretreatment method, which is based on the equipment for landfill and stockpiling sludge site solid waste pretreatment of embodiment 1, and comprises the following steps:
S1, firstly, conveying solid waste sludge to be treated into a temporary storage box 301 through a conveying mechanism 2 for temporary storage, and opening an automatic opening and closing plate 304 when filter pressing treatment is required, wherein the solid waste sludge falls into a filter pressing box 30 through a blanking port 303;
S2, starting a hydraulic driving rod 34 to enable each filter press plate 33 to slide on the horizontal mounting column 32 and approach each other, so as to carry out filter pressing treatment on solid waste sludge, filter-pressing the sludge into a plurality of small blocks through each filter press block 330 on the opposite sides of two adjacent filter press plates 33, forming small blocks of mud cakes and mud waste water after the solid waste sludge is filter-pressed, and enabling the mud waste water to flow into the precipitation reaction box 50 through a liquid outlet pipe 302;
s3, placing the mud cake storage box 42 in the sliding transfer frame 41, and sliding the sliding transfer frame 41 to the right lower end of the filter pressing box 30;
S4, starting each electric telescopic rod 350, driving each drawing plugging strip 36 on two U-shaped mounting frames 35 which are distributed oppositely to be separated from each other through the electric telescopic rods 350, enabling each filter press plate 33 to slide on the horizontal mounting column 32 through the hydraulic driving rod 34 and to be separated from each other, enabling mud cakes to fall into the mud cake storage box 42 through each strip-shaped opening 310, and then transferring;
S5, adding the flocculant in the reagent adding box 51 into the precipitation reaction box 50, flocculating and precipitating solid particles in the slurry wastewater flowing into the precipitation reaction box 50 through the liquid outlet pipe 302 by flocculation of the flocculant, and flowing the precipitated clean water into the clean water storage box 52 through the overflow port 500.
Example 3: this embodiment differs from embodiment 1 in that:
be equipped with centrifugal roller 37 in the temporary storage box 301, centrifugal roller 37 wherein one end has first rotating electrical machines 38 through rotation axis connection, centrifugal roller 37 bottom is equipped with blanking pipe 370, blanking pipe 370 department is equipped with solenoid valve 371, temporary storage box 301 lateral wall is connected with drain pipe 302 through the connecting pipe, carry out preliminary centrifugal drainage through centrifugal roller 37 to solid waste sludge before carrying out filter-pressing treatment, can the fast separation solid-liquid, reduce follow-up filter-pressing treatment's burden, thereby improve overall treatment efficiency, simultaneously, can reduce the moisture content of solid waste sludge effectively, improve the dryness fraction of mud, promote the transportation convenience, wherein centrifugal roller 37, first rotating electrical machines 38 and solenoid valve 371 all adopt prior art.
Example 4: this embodiment differs from embodiment 2 in that:
In step S1, after the solid waste sludge is transferred to the temporary storage box 301 by the conveying mechanism 2, the centrifugal roller 37 is driven to rotate by the first rotary motor 38, so that part of slurry waste water in the solid waste sludge is thrown out to the bottom end of the temporary storage box 301 under the action of centrifugal force and flows into the precipitation reaction box 50, then the electromagnetic valve 371 and the automatic opening and closing plate 304 are opened, and the dehydrated solid waste sludge in the centrifugal roller 37 falls between the filter pressing plates 33 in the filter pressing box 30 through the blanking pipe 370 and the blanking port 303.
Example 5: this embodiment differs from embodiment 3 in that:
As shown in fig. 1 and 9, the feeding end of the conveying mechanism 2 is provided with a crushing filter box 20, a gradient crushing rod 22 driven by a second rotary motor 21 is arranged in the crushing filter box 20, the side wall of the gradient crushing rod 22 is provided with 3 mounting rings 220 from top to bottom, the outer wall of each mounting ring 220 is provided with crushing blades 221 along the circumferential direction, the number of the crushing blades 221 on each mounting ring 220 distributed from top to bottom is sequentially increased, solid waste sludge with high water content placed in the crushing filter box 20 is automatically conveyed into a temporary storage box 301 through an electric belt type output machine, and the electric belt type output machine continuously works, so that manual conveying is reduced, conveying efficiency is improved, large solid materials in the solid waste sludge are crushed into small blocks so as to facilitate subsequent processing and conveying, and during crushing processing, various materials in the solid waste sludge can be effectively crushed due to sequentially increasing the number of the crushing blades 221 on each mounting ring 220 distributed from top to bottom, so that the quality of sludge treatment is improved, and the solid waste sludge is favorable for subsequent dehydration and conveying and the second rotary motor 21 and the conventional technology are adopted.
Example 6: this embodiment differs from embodiment 4 in that:
In step S1, before being placed in the crushing and filtering box 20, the solid waste sludge is placed in the crushing and filtering box 20 by the electric belt type output machine, the gradient crushing rod 22 is driven to rotate by the second rotary motor 21, and the crushing blades 221 on the outer wall of each mounting ring 220 are driven to rotate, so that the large solid materials in the solid waste sludge are crushed into small blocks, and during the crushing treatment, the number of the crushing blades 221 on each mounting ring 220 distributed from top to bottom is sequentially increased, so that various materials in the solid waste sludge can be effectively crushed.
Example 7: this embodiment differs from embodiment 5 in that:
As shown in fig. 7 and 8, a buffer tank 23 is arranged at the joint of the conveying mechanism 2 and the temporary storage box 301, an automatic opening and closing assembly 24 is arranged on one side of the side wall of the buffer tank 23 close to the temporary storage box 301, the automatic opening and closing assembly 24 comprises a first mounting frame 240 arranged at the upper end of the buffer tank 23, a baffle plate 242, the upper end of which is driven by a hydraulic cylinder 241, the bottom end of which penetrates through the buffer tank 23 and extends into the buffer tank 23, and an electronic timer 243 arranged on the first mounting frame 240; the baffle 242 bottom is equipped with rather than vertically horizontal limiting plate 244, through the input of control solid useless mud, can avoid centrifugal roller 37 to handle too much mud and overload because of once only, guarantee centrifugal roller 37's life, simultaneously, can also control solid useless mud intermittent type feeding, when pneumatic cylinder 241 drives baffle 242 and upwards moves, carries out spacingly through horizontal limiting plate 244, avoid taking out the baffle 242 completely and the spill over of solid useless mud that leads to, wherein, pneumatic cylinder 241 and electronic timer 243 all adopt prior art.
Example 8: this embodiment differs from embodiment 6 in that:
In step S1, when solid waste sludge is transferred to the temporary storage box 301 through the conveying mechanism 2, the solid waste sludge can be introduced into the intermittent buffer box 23 first, in order to control the content of the solid waste sludge entering the centrifugal roller 37, the automatic opening and closing assembly 24 is used for timing the time of introducing the solid waste sludge into the centrifugal roller 37 through the electronic timer 243, and after a preset time period is reached, the baffle plate 242 is driven to move downwards through the hydraulic cylinder 241 to block the feeding position of the temporary storage box 301, so that the input amount of the solid waste sludge can be controlled.
Test example: taking five equal parts of solid waste sludge in a landfill and storage sludge site, measuring the water content of each part of solid waste sludge by 500g of each part of solid waste sludge, then respectively carrying out dehydration treatment on the solid waste sludge by using the existing filter pressing equipment, the equipment of the embodiment 1, the equipment of the embodiment 3, the equipment of the embodiment 5 and the equipment of the embodiment 7, wherein the dehydration treatment time is 30min, finally measuring the water content in the dehydrated solid waste sludge, and calculating the dehydration rate, wherein the result is shown in the table 1:
table 1: dehydration rate of solid waste sludge by each equipment
As can be seen from table 1, when the solid waste sludge in the landfill and stockpiling sludge sites with the same water content is dehydrated, the dehydration rate of the solid waste sludge is 62% after the treatment by the existing filter pressing equipment, the dehydration rate of the solid waste sludge is 70% after the treatment by the equipment of example 1, which means that the dehydration effect of the equipment of example 1 is more likely to be extruded in the dehydration process under the conditions of the same water content of the sludge and the same dehydration time by the existing filter pressing equipment, example 3 is based on example 1 by adopting the process of centrifugal dehydration and filter pressing dehydration, the dehydration rate of the solid waste sludge is 78%, the dehydration effect of the centrifugal dehydration and the filter pressing dehydration of example 3 is better than the effect of only carrying out the dehydration of example 1, the dehydration rate of the solid waste sludge is 87% by the process of crushing the solid mass material in the solid waste sludge, the solid waste sludge is more likely to be extruded in the dehydration process by the crushing treatment of the equipment of example 1, the embodiment 5 is better than the embodiment 7, the intermittent dehydration effect of the solid waste sludge is avoided by controlling the embodiment 7, and the intermittent dehydration is better than the intermittent dehydration effect of the embodiment 7, which is superior to the intermittent dehydration effect of the solid waste sludge is avoided by the embodiment 7, and the intermittent dehydration is superior to the embodiment 7.
Claims (6)
1. The equipment for pretreating solid waste in a landfill and stockpiling sludge site is characterized by comprising a supporting main body (1), a conveying mechanism (2) for controlling solid waste sludge feeding, a filter pressing mechanism (3) arranged on the supporting main body (1) and connected with the conveying mechanism (2), a mud cake transferring mechanism (4) arranged below the filter pressing mechanism (3) and a mud treatment mechanism (5) connected with the filter pressing mechanism (3);
The filter pressing mechanism (3) comprises a filter pressing box (30) connected with a support main body (1) through a second mounting frame (300), a support mounting plate (31) which is arranged at the bottom of the filter pressing box (30) and is provided with a plurality of parallel strip-shaped openings (310) in a penetrating way at the upper end, a horizontal mounting column (32) which is arranged in the filter pressing box (30) and is positioned above the support mounting plate (31), a plurality of filter pressing plates (33) which can slide left and right along the horizontal mounting column (32), two hydraulic driving rods (34) which are respectively connected at the outer sides of the horizontal mounting columns (32) at the left end and the right end in a one-to-one correspondence way, two U-shaped mounting frames (35) which are respectively connected with the front side and the rear side of the filter pressing box (30) in a symmetrical way through electric telescopic rods (350), a plurality of drawing plugging strips (36) which are arranged at the inner sides of the U-shaped mounting frames (35) and are arranged in the strip-shaped openings (310) in a penetrating way, a temporary storage box (301) connected with the conveying mechanism (2) is arranged at the upper end of the support main body (1), a filter pressing box (30) side wall is provided with a filter pressing pipe (302), the two compression plates (33) are arranged at the upper ends of the filter pressing box (30), two adjacent filter pressing plates (33) are arranged, and the two compression plates (33) are arranged at the bottom sides (6);
the mud cake transferring mechanism (4) comprises a horizontal sliding rail (40) positioned below the filter pressing box (30), a sliding transferring frame (41) in sliding connection with the horizontal sliding rail (40), and a mud cake storage box (42) arranged in the sliding transferring frame (41), wherein a mounting opening (410) is formed in the side wall of the sliding transferring frame (41), and a shielding cover plate (411) is hinged to the mounting opening (410);
The slurry treatment mechanism (5) comprises a precipitation reaction box (50) which is connected with the liquid outlet pipe (302) and the temporary storage box (301) and is provided with an overflow port (500) at the upper end, a reagent adding box (51) which is connected with the upper end of the precipitation reaction box (50), and a clear water storage box (52) which is connected with the overflow port (500) through a pipeline;
the left side and the right side of the filter pressing plate (33) are respectively provided with a plurality of filter pressing blocks (330) in a matrix mode, the outer wall of the horizontal installation column (32) is uniformly provided with a plurality of horizontal sliding grooves (320) penetrating through the horizontal installation column (32) along the circumferential direction, the cross section of each horizontal sliding groove (320) is T-shaped, the center of each filter pressing plate (33) is provided with a sliding round opening (331), and the inner wall of each sliding round opening (331) is provided with sliding strips (332) corresponding to the horizontal sliding grooves (320) one by one;
The automatic opening and closing device is characterized in that a buffer box (23) is arranged at the joint of the conveying mechanism (2) and the temporary storage box (301), an automatic opening and closing assembly (24) is arranged on one side, close to the temporary storage box (301), of the side wall of the buffer box (23), the automatic opening and closing assembly (24) comprises a first mounting frame (240) arranged at the upper end of the buffer box (23), a baffle plate (242) with the upper end driven by a hydraulic cylinder (241) and the bottom end penetrating the buffer box (23) and extending into the buffer box (23), and an electronic timer (243) arranged on the first mounting frame (240);
the bottom end of the baffle plate (242) is provided with a horizontal limiting plate (244) perpendicular to the baffle plate.
2. The device for solid waste pretreatment of landfill and stockpiling sludge sites according to claim 1, wherein a centrifugal roller (37) is arranged in the temporary storage box (301), one end of the centrifugal roller (37) is connected with a first rotating motor (38) through a rotating shaft, a blanking pipe (370) is arranged at the bottom end of the centrifugal roller (37), an electromagnetic valve (371) is arranged at the blanking pipe (370), and the side wall of the temporary storage box (301) is connected with the liquid outlet pipe (302) through a connecting pipe.
3. The equipment for solid waste pretreatment of landfill and stockpiling sludge sites according to claim 1, wherein the conveying mechanism (2) adopts an electric belt type output machine, a crushing filter box (20) is arranged at a feeding end of the conveying mechanism (2), a gradient crushing rod (22) driven by a second rotating motor (21) is arranged in the crushing filter box (20), a plurality of mounting rings (220) are arranged on the side wall of the gradient crushing rod (22) from top to bottom, a plurality of crushing blades (221) are arranged on the outer wall of each mounting ring (220) along the circumferential direction, and the number of the crushing blades (221) on each mounting ring (220) distributed from top to bottom is sequentially increased.
4. The device for pretreating solid waste in a landfill and stockpiling sludge field according to claim 1, wherein the left side and the right side of the drawing plugging strip (36) are respectively connected with the corresponding strip-shaped openings (310) in a sliding manner, and in the two drawing plugging strips (36) which are distributed oppositely, one drawing plugging strip (36) is provided with a plugging column (360) at the front end, and the other drawing plugging strip (36) is provided with a plugging hole (361) at the side opposite to the plugging column (360).
5. The device for pretreating solid waste in a landfill and stockpiling sludge site according to claim 1, wherein a supporting filler strip (412) is arranged at the upper end of the outer wall of the shielding cover plate (411), a protection plate (413) is arranged on the inner wall of the shielding cover plate (411), and the protection plate (413) is of a detachable structure.
6. A method for pretreating solid waste in a landfill and stockpiling sludge site, which is based on the equipment for pretreating solid waste in a landfill and stockpiling sludge site as claimed in any one of claims 1 to 5, and is characterized by comprising the following steps:
S1, firstly, conveying solid waste sludge to be treated into a temporary storage box (301) through a conveying mechanism (2) for temporary storage, and opening an automatic opening and closing plate (304) when filter pressing treatment is required, wherein the solid waste sludge falls into a filter pressing box (30) through a blanking port (303);
S2, starting a hydraulic driving rod (34) to enable each filter pressing plate (33) to slide on the horizontal mounting column (32) and approach each other, so that filter pressing treatment is carried out on the solid waste sludge, mud cakes and mud waste water are formed after the solid waste sludge is filter pressed, and the mud waste water flows into the precipitation reaction box (50) through a liquid outlet pipe (302);
s3, placing the mud cake storage box (42) in the sliding transfer frame (41), and sliding the sliding transfer frame (41) to the right lower end of the filter pressing box (30);
S4, starting each electric telescopic rod (350), driving each drawing plugging strip (36) on two U-shaped installation racks (35) which are distributed oppositely to be separated from each other through the electric telescopic rods (350), enabling each filter pressing plate (33) to slide on a horizontal installation column (32) through a hydraulic driving rod (34) and to be separated from each other, enabling mud cakes to fall into a mud cake storage box (42) through each strip-shaped opening (310), and then transferring;
S5, adding a flocculating agent in the reagent adding box (51) into the precipitation reaction box (50), flocculating and precipitating solid particles in the slurry wastewater flowing into the precipitation reaction box (50) through a liquid outlet pipe (302) by flocculation of the flocculating agent, and flowing the precipitated clear water into the clear water storage box (52) through an overflow port (500).
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