CN116730547A - Wastewater treatment device and treatment method - Google Patents
Wastewater treatment device and treatment method Download PDFInfo
- Publication number
- CN116730547A CN116730547A CN202310825528.1A CN202310825528A CN116730547A CN 116730547 A CN116730547 A CN 116730547A CN 202310825528 A CN202310825528 A CN 202310825528A CN 116730547 A CN116730547 A CN 116730547A
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- water
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 27
- 239000002351 wastewater Substances 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 43
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000004804 winding Methods 0.000 claims abstract description 32
- 238000000926 separation method Methods 0.000 claims abstract description 27
- 238000005507 spraying Methods 0.000 claims abstract description 12
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 57
- 238000007789 sealing Methods 0.000 claims description 35
- 239000007789 gas Substances 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 14
- 239000010865 sewage Substances 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 7
- 238000000855 fermentation Methods 0.000 claims description 6
- 230000004151 fermentation Effects 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention provides wastewater treatment equipment and a treatment method, wherein the equipment comprises a winding removing device, a basket filter, a water spraying pipeline, a vertical flow constructed wetland pool, an anaerobic treatment system, a gas-liquid separation device and a PLC control system; the waste water enters the box body through a water inlet pipeline of the winding removing device, the separated waste water flows into the basket filter through the first water discharge pipeline, the waste water treated by the basket filter is sprayed to the vertical flow constructed wetland pool through the water spray pipeline, the waste water flows to the anaerobic treatment system for treatment through the second water discharge pipeline, and methane containing water is generated by the anaerobic treatment system and flows to the gas-liquid separation device through the first air discharge pipeline. According to the invention, plastic bag type easy-winding matters are separated from wastewater, solids in the wastewater are separated, ammonia nitrogen in the wastewater is effectively removed, and methane containing moisture is effectively separated, so that the fact that the basically dried methane enters a designated pipeline is ensured, the risk of corrosion of valves and pipelines is reduced, and the safety of the whole equipment is improved.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to wastewater treatment equipment and a wastewater treatment method.
Background
The wastewater refers to a water body containing various harmful substances, if the wastewater is directly discharged into the environment, serious influence can be caused on the ecological environment and human health, and the wastewater treatment refers to a series of physical, chemical, biological and other treatment processes of the wastewater, so that the harmful substances in the wastewater are removed or converted, and the wastewater meets the discharge standard or the water quality requirement for reuse. In the prior art, solid impurities are usually separated from wastewater, and the separated solid impurities are recycled for the second time, for example, the wastewater is applied to an anaerobic treatment system for fermentation to generate biogas, a one-way valve or an electromagnetic valve is arranged at the rear end of the anaerobic treatment system, and when the biogas pressure reaches a certain set value, the biogas is conveyed to a designated pipeline.
Along with the development of society, various plastic bags, plastic ropes, weeds and other easily-wound matters easily enter domestic sewage, pipelines of subsequent solid-liquid separation equipment are easily blocked, and meanwhile, in order to improve the efficiency of a fermentation process, high-temperature fermentation is generally adopted, so that a large amount of water is contained in biogas production, and the water and hydrogen sulfide in the biogas act together to accelerate the corrosion of the pipelines and valves, so that potential safety hazards are easily caused.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide wastewater treatment equipment and a wastewater treatment method, which effectively solve the problems that plastic bags which are easy to be wound easily enter domestic sewage in the prior art, the pipeline of the subsequent solid-liquid separation equipment is easy to be blocked, the pipeline and the valve are corroded in an accelerated way under the combined action of water and hydrogen sulfide in methane, and potential safety hazards are easy to be caused.
In order to achieve the above purpose, the present invention provides the following technical solutions: a waste water treatment device comprises a winding removing device, a basket filter, a water spraying pipeline, a vertical flow constructed wetland tank, an anaerobic treatment system, a gas-liquid separation device and a PLC control system; the waste water enters the box body through a water inlet pipeline of the winding object removing device, the winding objects in the waste water are separated through rotation of a stirring assembly of the winding object removing device, the separated waste water flows into the basket type filter through a first water discharge pipeline, and a quick-plug stop valve is arranged on the stirring assembly; the wastewater treated by the basket filter is sprayed to the vertical flow constructed wetland pool through the water spraying pipeline, flows to the anaerobic treatment system for treatment through the second water draining pipeline, and the biogas containing water generated by the anaerobic treatment system flows to the gas-liquid separation device through the first exhaust pipeline.
Preferably, the winding thing remove device includes actuating mechanism, first base, first drain, sealed pad and shrouding, actuating mechanism is located the top of box and rather than fixed connection, actuating mechanism passes through first motor drive, first base is located the bottom of box and rather than fixed connection, sealed pad with the shrouding is located the bottom of box central authorities bottom plate, and will through the bolt sealed pad the shrouding with box fixed connection.
Preferably, the front of box is provided with the observation window, be provided with the exhaust hole on the roof of box, be provided with first stop valve on the inlet channel, be provided with the second stop valve on the first drainage pipe, stirring subassembly is located actuating mechanism's output shaft below and pass through the shaft coupling and connect with it, be provided with the blowoff valve on the first blowoff pipe.
Preferably, the stirring assembly comprises a stirring shaft, a shell, a first sealing cover plate, a second sealing cover plate, a limit stop, a spring, a first telescopic assembly and a second telescopic assembly, wherein the shell is of a cuboid hollow structure, the stirring shaft is positioned at the top of the shell and is fixedly connected with the stirring shaft, an air hole is formed in the stirring shaft, the first sealing cover plate is positioned at one end of the shell and is fixedly connected with the stirring shaft, the second sealing cover plate is positioned at the other end of the shell and is fixedly connected with the other end of the shell, the limit stop is positioned in the shell and is fixedly connected with the limiting stop, the first telescopic assembly and the second telescopic assembly are both positioned in the shell, and the spring is arranged between the first sealing cover plate and the first telescopic assembly and between the second sealing cover plate and the second telescopic assembly.
Preferably, the first through hole is formed in the first cover plate, the second through hole is formed in the second cover plate, the first telescopic assembly comprises a piston, a connecting rod and a cylindrical rod, the second telescopic assembly comprises the piston, the connecting rod and a cylindrical seat, the connecting rod is fixedly connected with the cylindrical rod and the cylindrical seat, and the connecting rod is pushed to extend out of the stirring assembly through the reduction of the clamping distance of the cylindrical rod and the cylindrical seat.
Preferably, the anaerobic treatment system comprises a third drainage pipeline, a safety valve and a second sewage drain pipeline, wherein the third drainage pipeline is positioned on one side of the anaerobic treatment system, a third stop valve is arranged on the third drainage pipeline, the second sewage drain pipeline is positioned below the third drainage pipeline, the second sewage drain pipeline is provided with a sewage drain valve, and the safety valve is positioned at the top of the anaerobic treatment system.
Preferably, the gas-liquid separation device comprises an inner shell, a right end cover, an air inlet pipeline, an outer shell, a porous plate, a left end cover, an electric cylinder assembly, a movable rod assembly and a second base, wherein the inner shell, the air inlet pipeline and the outer shell are fixedly connected with the right end cover, a plurality of porous plates are arranged between the inner shell and the outer shell, the movable rod assembly is positioned in the inner shell, the right end cover is fixedly connected with the outer shell through bolts, the electric cylinder assembly comprises a second motor and an electric cylinder mounting plate, the electric cylinder assembly is fixedly connected with the left end cover through bolts, the second base is positioned at the bottom of the outer shell and is fixedly connected with the second base, the inner shell is of a hollow structure, a plurality of third through holes are formed in the inner shell, one end, close to the right end cover, of the inner shell is provided with a conical opening, and the air inlet pipeline is provided with a first pressure sensor.
Preferably, the outer shell comprises a second exhaust pipeline and a liquid discharge pipeline, a second pressure sensor, a first electromagnetic valve and a vent pipeline are arranged on the second exhaust pipeline, a second electromagnetic valve is arranged on the vent pipeline, and a third electromagnetic valve is arranged on the liquid discharge pipeline.
Preferably, the movable rod assembly comprises a movable rod, a spiral plate and a conical sealing cover plate, wherein an electric cylinder extending shaft installing threaded hole is formed in one end of the movable rod, a kidney-shaped slotted hole is formed in the other end of the movable rod, a plurality of fourth through holes are formed in the side face of the movable rod, the spiral plate is located in the movable rod, and the conical sealing cover plate is fixedly connected with the movable rod.
The invention also provides a use method of the wastewater treatment equipment, which comprises the following steps:
s1, separating windings and solid impurities in the wastewater, removing ammonia nitrogen and treating the wastewater after anaerobic treatment under normal conditions;
s2, in the method S1, when more easy-to-wind objects are wound in the stirring assembly, a method for processing the winding objects is adopted;
s3, separating gas from a gas-liquid mixture containing more water, which is generated by fermentation of an anaerobic treatment system;
the method S1 comprises the steps of:
s11, before use, all the electromagnetic valves, the motors and the sensors are communicated with a PLC control system, and all the motors, the electromagnetic valves and the manual valves are in a closed state;
s12, opening a first stop valve, injecting wastewater into the tank body through a water inlet pipeline, opening a quick-insertion stop valve, injecting high-pressure air into the stirring assembly through the stop valve by an external high-pressure air supply device through a quick-insertion pipe, closing the quick-insertion stop valve after the connecting rod is completely extended, stopping air supply, extracting the quick-insertion pipe of the high-pressure air supply device from the quick-insertion stop valve, starting a first motor to drive the stirring assembly to rotate in the tank body, opening a second stop valve after the tank body runs for a period of time, and enabling the wastewater to flow to the basket filter through a first drainage pipeline;
s13, after the wastewater is subjected to solid-liquid separation in the basket filter, the separated wastewater is sprayed to the vertical flow constructed wetland pool through a water spraying pipeline, most ammonia nitrogen in the wastewater is removed through the vertical flow constructed wetland pool, and the wastewater flows to the anaerobic treatment system through a second water draining pipeline;
s14, opening a third stop valve, and enabling the wastewater treated by the anaerobic treatment system to flow to a subsequent aerobic treatment process through a third drainage pipeline;
the method S2 comprises the steps of:
s21, when more windings are wound on the stirring assembly through the observation window, closing the first stop valve, when the waste water in the box body cannot be discharged from the first drainage pipeline, closing the second stop valve, stopping the operation of the first motor, opening the drain valve on the first drain pipeline, opening the quick-plug stop valve, enabling high-pressure air in the stirring assembly to flow outwards, enabling the connecting rod to shrink inwards under the action of the spring, separating the sealing gasket, the sealing plate and the box body, closing the drain valve on the first drain pipeline after residues in the box body are completely discharged, fixedly connecting the sealing gasket, the sealing plate and the box body, and repeating the step S1;
the method S3 comprises the steps of:
s31, when the pressure of the marsh gas containing moisture in the anaerobic treatment system reaches the upper limit of the high pressure set pressure of the first pressure sensor, the first pressure sensor feeds back signals to the PLC control system, so that the electric cylinder assembly contracts, the marsh gas containing moisture enters the inner cavity of the movable rod from the first exhaust pipeline through the waist-shaped slot hole, the marsh gas containing moisture continuously changes the flow rate and the direction of the gas-liquid mixture under the combined action of the spiral plate, the fourth through hole, the third through hole and the porous plate, gas-liquid separation is carried out under the combined action of centrifugal force and gravity, lighter gases are converged to the second exhaust pipeline, and heavier liquids fall into the liquid discharge pipeline;
s32, continuously rising the pressure of the methane containing the water generated in the anaerobic treatment system, and feeding back a signal to the PLC control system by the second pressure sensor when the pressure reaches the upper limit set by the second pressure sensor, opening the first electromagnetic valve, and enabling the high-pressure methane with the water removed to flow into a designated high-pressure output pipeline from the second exhaust pipeline;
s33, when the pressure of the biogas generated in the anaerobic treatment system continuously drops, and when the pressure reaches the lower limit set by the second pressure sensor, the second pressure sensor feeds back a signal to the PLC control system, the electric cylinder assembly stretches out while the first electromagnetic valve is closed, so that the movable rod assembly and the inner shell are completely sealed, and at the moment, the biogas generated by the anaerobic treatment system cannot enter the inner cavity of the movable rod;
s34, after the movable rod assembly and the inner shell are completely sealed, starting the second electromagnetic valve, emptying gas between the first electromagnetic valve and the movable rod assembly, closing the second electromagnetic valve after emptying, opening the third electromagnetic valve, discharging liquid to a specified pipeline, and closing the third electromagnetic valve.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention provides wastewater treatment equipment, which is characterized in that by arranging a winding removing device, a basket filter, a water spraying pipeline, a vertical flow constructed wetland tank, an anaerobic treatment system, a gas-liquid separation device and a PLC control system, wastewater is treated by the winding removing device and then subjected to solid-liquid separation by the basket filter, most ammonia nitrogen in the wastewater is removed by the vertical flow constructed wetland tank through the water spraying pipeline, and meanwhile, the wastewater is led into the vertical flow constructed wetland tank to form an anaerobic environment, and then is led into a subsequent anaerobic treatment system to form available biogas, and water in the biogas is effectively separated by the gas-liquid separation device, so that the basically dry available biogas is obtained.
(2) According to the wastewater treatment equipment provided by the invention, the winding removing device is arranged at the front end of the basket filter, so that the plastic bag type easy winding is separated from wastewater, and the risk that the plastic bag type easy winding blocks a pipeline is radically reduced.
(3) According to the wastewater treatment equipment provided by the invention, through the structural arrangement of the stirring assembly, high-pressure gas is introduced from the quick-insertion stop valve or the high-pressure gas in the stirring assembly is identical to the atmosphere, and the high-pressure gas is combined with the spring, so that the expansion and contraction of the connecting rod are automatically realized.
(4) According to the wastewater treatment equipment provided by the invention, the observation window is arranged on the box body, the winding condition of the plastic bag type easy-winding objects in the stirring assembly is conveniently known through the observation window, the corresponding valve is closed when cleaning is needed, sewage is discharged through the sewage discharge pipeline, the detachable sealing plate is opened after the sewage discharge is finished, the plastic bag type easy-winding objects and solid impurities can be conveniently managed, and the whole cleaning process is simple and rapid, and basically no pollution is caused to the periphery.
(5) According to the wastewater treatment equipment provided by the invention, through the arrangement of the gas-liquid separation device, the flow speed and the direction of the gas-liquid mixture are continuously changed under the combined action of the spiral plate, the fourth through hole, the third through hole and the porous plate, and the relatively thorough solid-liquid separation is realized under the combined action of the centrifugal force and the gravity.
(6) The waste water treatment equipment provided by the invention uses the extension and contraction of the electric cylinder component to drive the movement of the moving rod to replace the opening and closing of the traditional valve, effectively avoids the potential safety hazard of the traditional valve caused by the corrosion of the pipeline and the valve,
(7) The wastewater treatment equipment provided by the invention has the advantages that the biogas discharge, drying and water removal processes are automatic processes, so that the complexity of manual operation and the inconvenience of requiring real-time monitoring by professional staff are avoided.
Drawings
FIG. 1 is an overall schematic of the present invention;
FIG. 2 is a schematic view of the stirring assembly of the present invention;
FIG. 3 is a schematic view of the structure of the gas-liquid separation device of the present invention;
FIG. 4 is a diagram of a kidney slot opening according to the present invention.
In the figure: 100. a winding removing device; 101. a quick-plug stop valve; 110. a case; 120. a water inlet pipe; 121. a first stop valve; 130. a driving mechanism; 131. a first motor; 140. a first base; 150. a first drain pipe; 151. a second shut-off valve; 160. a stirring assembly; 161. a stirring shaft; 1611. air holes; 162. a housing; 163. a first cover plate; 1631. a first through hole; 164. a second cover plate; 1641. a second through hole; 165. a limit stop; 166. a spring; 167. a first telescoping assembly; 1671. a piston; 1672. a connecting rod; 1673. a cylindrical rod; 168. a second telescoping assembly; 1681. a cylindrical seat; 170. a first sewage drain; 180. a sealing gasket; 190. a sealing plate; 200. a basket filter; 300. a water spraying pipeline; 400. a vertical flow constructed wetland tank; 410. a second drain pipe; 500. an anaerobic treatment system; 510. a third drain pipe; 511. a third stop valve; 520. a first exhaust duct; 530. a safety valve; 540. a second sewage drain; 600. a gas-liquid separation device; 610. an inner housing; 611. a third through hole; 620. a right end cover; 630. an air intake duct; 631. a first pressure sensor; 640. an outer housing; 641. a second exhaust duct; 642. a second pressure sensor; 643. a first electromagnetic valve; 644. venting the pipeline; 645. a second electromagnetic valve; 646. a liquid discharge pipe; 647. a third electromagnetic valve; 650. a porous plate; 660. a left end cover; 670. an electric cylinder assembly; 671. a second motor; 672. an electric cylinder mounting plate; 680. a movable rod assembly; 681. a moving rod; 6811. the electric cylinder extends out of the shaft mounting threaded hole; 6812. waist-shaped slotted holes; 6813. a fourth through hole; 682. a spiral plate; 683. a conical cover plate; 690. and a second base.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terms "upper," "lower," "left," "right," "top," "bottom," "inner," "outer," and the like are merely used for convenience in describing the present invention and to simplify the description, and do not denote or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
It should be understood that in the description of the invention, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically indicated and defined.
Example 1
Referring to fig. 1 to 4, the present embodiment provides a wastewater treatment apparatus including a entanglement removal device 100, a basket filter 200, a spray pipe 300, a vertical flow constructed wetland tank 400, an anaerobic treatment system 500, a gas-liquid separation device 600, and a PLC control system.
The waste water enters the box 110 through the water inlet pipeline 120 of the entanglement removing device 100, the entanglement in the waste water is separated through the rotation of the stirring assembly 160 of the entanglement removing device 100, the separated waste water flows into the basket filter 200 through the first water outlet pipeline 150, and the stirring assembly 160 is provided with the quick-plug stop valve 101; the wastewater treated by the basket filter 200 is sprayed to the vertical flow constructed wetland tank 400 through the water spraying pipeline 300, flows to the anaerobic treatment system 500 through the second water discharging pipeline 410 for treatment, and biogas containing water generated by the anaerobic treatment system 500 flows to the gas-liquid separation device 600 through the first air discharging pipeline 520.
The winding removing apparatus 100 includes a driving mechanism 130, a first base 140, a first sewage drain 170, a sealing pad 180 and a sealing plate 190, wherein the driving mechanism 130 is located at the top of the case 110 and is fixedly connected with the same, the driving mechanism 130 is driven by a first motor 131, the driving mechanism 130 and the case can be connected by adopting a motor fixing seat structure in the prior art, the first base 140 is located at the bottom of the case 110 and is fixedly connected with the same, the sealing pad 180 and the sealing plate 190 are located at the bottom of the central bottom plate of the case 110, and the sealing pad 180, the sealing plate 190 and the case 110 are fixedly connected by bolts; the front of box 110 is provided with the observation window (not shown in the drawing), is provided with the exhaust hole on the roof of box 110 for with the bubble discharge in the waste water, be provided with first stop valve 121 on the inlet channel 120, be provided with second stop valve 151 on the first drainage pipe 150, stirring subassembly 160 is located actuating mechanism 130's output shaft below and is connected with it through the shaft coupling, and stirring subassembly 160 can adopt prior art's bearing frame connected form with the connection of box 110, is provided with the blowoff valve on the first blowoff pipe 170.
The stirring assembly 160 comprises a stirring shaft 161, a shell 162, a first cover plate 163, a second cover plate 164, a limit stop 165, a spring 166, a first telescopic assembly 167 and a second telescopic assembly 168, wherein the shell 162 is of a cuboid hollow structure, the stirring shaft 161 is positioned at the top of the shell 162 and is fixedly connected with the same, an air hole 1611 is formed in the stirring shaft 161, the air outside the stirring assembly 160 is communicated with the inside of the shell 162 through the air hole 1611, the first cover plate 163 is positioned at one end of the shell 162 and is fixedly connected with the same, the second cover plate 164 is positioned at the other end of the shell 162 and is fixedly connected with the same, the limit stop 165 is positioned inside the shell 162 and is fixedly connected with the same, and the spring 166 is arranged between the first cover plate 163 and the first telescopic assembly 167 and between the second cover plate 164 and the second telescopic assembly 168; the first cover plate 163 is provided with a first through hole 1631, the second cover plate 164 is provided with a second through hole 1641, the first telescopic component 167 comprises a piston 1671, a connecting rod 1672 and a cylindrical rod 1673, the second telescopic component 168 comprises the piston 1671, the connecting rod 1672 and the cylindrical rod 1673, and the cylindrical rod 1681 are fixedly connected with the piston 1671, the connecting rod 1672 is pushed out of the stirring component 160 by the reduction of the clamping distance between the cylindrical rod 1673 and the cylindrical rod 1681, further, in order to facilitate the easy separation of the follow-up plastic bags from the stirring component 160, the first cover plate 163 and the second cover plate 164 are designed with a certain inclination angle, after the connecting rod 1672 is completely contracted, the whole stirring component 160 has a certain taper in appearance, and the diameter of one end close to the stirring shaft 161 is larger than the diameter of the other end far away from the stirring shaft 161.
The anaerobic treatment system 500 includes a third drain pipe 510, a safety valve 530, and a second drain pipe 540, the third drain pipe 510 being located at one side of the anaerobic treatment system 500, a third stop valve 511 being provided on the third drain pipe 510, the second drain pipe 540 being located below the third drain pipe 510, the second drain pipe 540 being provided with a drain valve, the safety valve 530 being located at the top of the anaerobic treatment system 500.
The gas-liquid separation device 600 includes an inner housing 610, a right end cover 620, an air inlet pipe 630, an outer housing 640, a perforated plate 650, a left end cover 660, an electric cylinder assembly 670, a moving rod assembly 680 and a second base 690, wherein the inner housing 610, the air inlet pipe 630 and the outer housing 640 are fixedly connected with the right end cover 620, a plurality of perforated plates 650 are arranged between the inner housing 610 and the outer housing 640, the moving rod assembly 680 is positioned inside the inner housing 610, the right end cover 620 is fixedly connected with the outer housing 640 through bolts, the electric cylinder assembly 670 includes a second motor 671 and an electric cylinder mounting plate 672, the electric cylinder assembly 670 and the left end cover 660 are fixedly connected through bolts, the second base 690 is positioned at the bottom of the outer housing 640 and is fixedly connected with the outer housing 640, the inner housing 610 is of a hollow structure, a plurality of third through holes 611 are formed in the inner housing 610, a conical opening is formed in one end of the inner housing 610 close to the right end of the outer housing 620, and the air inlet pipe 630 is provided with a first pressure sensor 631; the outer case 640 includes a second exhaust pipe 641 and a drain pipe 646, a second pressure sensor 642, a first electromagnetic valve 643, and a drain pipe 644 are provided on the second exhaust pipe 641, a second electromagnetic valve 645 is provided on the drain pipe 644, and a third electromagnetic valve 647 is provided on the drain pipe 646; the moving rod assembly 680 includes a moving rod 681, a spiral plate 682 and a tapered cover plate 683, one end of the moving rod 681 is provided with an electric cylinder extension shaft mounting threaded hole 6811, the extension shaft of the electric cylinder assembly 670 is an external thread, the electric cylinder assembly 670 and the moving rod assembly 680 are connected together by threaded connection, the other end of the moving rod 681 is provided with a kidney-shaped slot 6812, the side surface of the moving rod 681 is provided with a plurality of fourth through holes 6813, the spiral plate 682 is positioned in the moving rod 681, and the tapered cover plate 683 is fixedly connected with the moving rod 681.
The embodiment of the invention also provides a use method of the wastewater treatment equipment, which comprises the following steps:
s1, separating windings and solid impurities in the wastewater, removing ammonia nitrogen and treating the wastewater after anaerobic treatment under normal conditions;
s2, in the method S1, when more windings are wound in the stirring assembly 160, a method for processing the windings is provided;
s3, a method for separating gas from a gas-liquid mixture containing more water generated by fermentation of the anaerobic treatment system 500;
the method S1 comprises the steps of:
s11, before use, all the electromagnetic valves, the motors and the sensors are communicated with a PLC control system, and all the motors, the electromagnetic valves and the manual valves are in a closed state;
s12, opening a first stop valve 121, injecting wastewater into the tank 110 through a water inlet pipeline 120, opening a quick-plug stop valve 101, injecting high-pressure air into the stirring assembly 160 through the quick-plug pipe by using external high-pressure air supply equipment, closing the quick-plug stop valve 101 after a connecting rod 1672 is completely extended, stopping air supply, extracting the quick-plug pipe of the high-pressure air supply equipment from the quick-plug stop valve 101, starting a first motor 131 to drive the stirring assembly 160 to rotate in the tank 110, opening a second stop valve 151 after a period of operation, and enabling the wastewater to flow into the basket filter 200 through a first drainage pipeline 150;
s13, after the wastewater is subjected to solid-liquid separation in the basket filter 200, the separated wastewater is sprayed to the vertical flow constructed wetland tank 400 through the water spraying pipeline 300, most ammonia nitrogen in the wastewater is removed through the vertical flow constructed wetland tank 400, and the wastewater flows to the anaerobic treatment system 500 through the second water draining pipeline 410;
s14, opening a third stop valve 511, and enabling the wastewater treated by the anaerobic treatment system 500 to flow to a subsequent aerobic treatment process through a third drainage pipeline;
the method S2 comprises the steps of:
s21, when more windings are wound on the stirring assembly 160 through an observation window (not shown in the figure), the first stop valve 121 is closed, when the waste water in the box body 110 cannot be discharged from the first drainage pipeline 150, the second stop valve 151 is closed, the operation of the first motor 131 is stopped, the drain valve on the first drain pipeline 170 is opened, the quick-plug stop valve 101 is opened, high-pressure air in the stirring assembly 160 flows outwards, the connecting rod 1672 is contracted inwards under the action of the spring 166, the sealing gasket 180 and the sealing plate 190 are separated from the box body 110, after residues in the box body 110 are completely discharged, the drain valve on the first drain pipeline 170 is closed, the sealing gasket 180 and the sealing plate 190 are fixedly connected with the box body 110, and the step S1 is repeated;
further, when the connecting rod 1672 is contracted, the bottom of the stirring assembly 160 is tapered, so as to better separate the plastic bag type easy-to-wind objects from the stirring assembly 160, the first motor 131 can be started at this time to rotate the stirring assembly 160, and the easy-to-wind objects can be separated from the stirring assembly 160 more conveniently and rapidly under the combined action of gravity and rotational centrifugal force.
The method S3 comprises the steps of:
s31, when the pressure of the marsh gas containing moisture generated in the anaerobic treatment system 500 reaches the upper limit of the high pressure set pressure of the first pressure sensor 631, the first pressure sensor 631 feeds back signals to the PLC control system to enable the electric cylinder assembly 670 to shrink, the marsh gas containing moisture enters the inner cavity of the movable rod 681 from the first exhaust pipeline 520 through the waist-shaped slot 6812 from the air inlet pipeline 630, the marsh gas containing moisture continuously changes in the flow speed and direction under the combined action of the spiral plate 682, the fourth slot 6813, the third slot 611 and the porous plate 650, gas-liquid separation is carried out under the combined action of centrifugal force and gravity, lighter gases are converged towards the second exhaust pipeline 641, and heavier liquids fall into the liquid discharge pipeline 646;
s32, as the pressure of the methane containing moisture generated in the anaerobic treatment system 500 continuously rises, when the pressure reaches the upper limit set by the second pressure sensor 642, the second pressure sensor 642 feeds back a signal to the PLC control system, the first electromagnetic valve 643 is opened, and the high-pressure methane with the moisture basically removed flows into a designated high-pressure output pipeline from the second exhaust pipeline 641;
s33, when the pressure of the biogas generated in the anaerobic treatment system 500 continuously drops, and when the pressure reaches the lower limit set by the second pressure sensor 642, the second pressure sensor 642 feeds back a signal to the PLC control system, and the electric cylinder assembly 670 is extended while the first electromagnetic valve 643 is closed, so that the movable rod assembly 680 is completely sealed with the inner shell 610, and at the moment, the biogas generated by the anaerobic treatment system 500 cannot enter the inner cavity of the movable rod 681;
s34, after the movable rod assembly 680 is completely sealed with the inner housing 610, the second electromagnetic valve 645 is activated, the gas between the first electromagnetic valve 643 and the movable rod assembly 680 is exhausted, the second electromagnetic valve 645 is closed after the gas is exhausted, the third electromagnetic valve 647 is opened to discharge the liquid to the designated pipeline, and the third electromagnetic valve 647 is closed.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The wastewater treatment equipment is characterized by comprising a winding removing device (100), a basket filter (200), a water spraying pipeline (300), a vertical flow constructed wetland tank (400), an anaerobic treatment system (500), a gas-liquid separation device (600) and a PLC control system;
the waste water enters the box body (110) through a water inlet pipeline (120) of the winding object removing device (100), the winding objects in the waste water are separated through the rotation of a stirring assembly (160) of the winding object removing device (100), the separated waste water flows into the basket filter (200) through a first water discharge pipeline (150), and a quick-plug stop valve (101) is arranged on the stirring assembly (160);
the wastewater treated by the basket filter (200) is sprayed to the vertical flow constructed wetland tank (400) through the water spraying pipeline (300), and flows to the anaerobic treatment system (500) for treatment through the second water draining pipeline (410), and the biogas containing water generated by the anaerobic treatment system (500) flows to the gas-liquid separation device (600) through the first air draining pipeline (520).
2. The wastewater treatment device according to claim 1, wherein the wound matter removal apparatus (100) comprises a driving mechanism (130), a first base (140), a first sewage drain pipe (170), a sealing pad (180) and a sealing plate (190), wherein the driving mechanism (130) is located at the top of the tank body (110) and is fixedly connected with the tank body, the driving mechanism (130) is driven by a first motor (131), the first base (140) is located at the bottom of the tank body (110) and is fixedly connected with the tank body, the sealing pad (180) and the sealing plate (190) are located at the bottom of a central bottom plate of the tank body (110), and the sealing pad (180), the sealing plate (190) and the tank body (110) are fixedly connected by bolts.
3. The wastewater treatment device according to claim 1, characterized in that an observation window is arranged on the front surface of the box body (110), an exhaust hole is arranged on a top plate of the box body (110), a first stop valve (121) is arranged on the water inlet pipeline (120), a second stop valve (151) is arranged on the first water outlet pipeline (150), the stirring assembly (160) is arranged below an output shaft of the driving mechanism (130) and is connected with the output shaft through a coupling, and a blow-down valve is arranged on the first blow-down pipeline (170).
4. The wastewater treatment device according to claim 1, wherein the stirring assembly (160) comprises a stirring shaft (161), a housing (162), a first cover plate (163), a second cover plate (164), a limit stop (165), a spring (166), a first telescopic assembly (167) and a second telescopic assembly (168), the housing (162) is of a cuboid hollow structure, the stirring shaft (161) is located at the top of the housing (162) and is fixedly connected with the housing, an air hole (1611) is formed in the stirring shaft (161), the first cover plate (163) is located at one end of the housing (162) and is fixedly connected with the housing, the second cover plate (164) is located at the other end of the housing (162) and is fixedly connected with the housing, the limit stop (165) is located inside the housing (162) and is fixedly connected with the housing, the first telescopic assembly (167) and the second telescopic assembly (168) are both located inside the housing (162), and the first cover plate (163) and the first cover plate (167) are both telescopic with the spring (166) and the second cover plate (166) are both arranged between the first cover plate (163) and the second cover plate (166).
5. The apparatus of claim 4, wherein the first cover plate (163) is provided with a first through hole (1631), the second cover plate (164) is provided with a second through hole (1641), the first telescopic assembly (167) comprises a piston (1671), a connecting rod (1672) and a cylindrical rod (1673), the second telescopic assembly (168) comprises the piston (1671), the connecting rod (1672) and a cylindrical seat (1681), the connecting rod (1672), the cylindrical rod (1673) and the cylindrical seat (1681) are fixedly connected with the piston (1671), and the connecting rod (1672) is pushed to extend out of the stirring assembly (160) by the reduction of the clamping distance between the cylindrical rod (1673) and the cylindrical seat (1681).
6. The wastewater treatment plant according to claim 1, characterized in that the anaerobic treatment system (500) comprises a third drain pipe (510), a safety valve (530) and a second drain pipe (540), the third drain pipe (510) being located at one side of the anaerobic treatment system (500), a third stop valve (511) being provided on the third drain pipe (510), the second drain pipe (540) being located below the third drain pipe (510), the second drain pipe (540) being provided with a drain valve, the safety valve (530) being located at the top of the anaerobic treatment system (500).
7. The apparatus of claim 1, wherein the gas-liquid separation apparatus (600) comprises an inner housing (610), a right end cap (620), an air intake pipe (630), an outer housing (640), a perforated plate (650), a left end cap (660), an electric cylinder assembly (670), a moving rod assembly (680) and a second base (690), the inner housing (610), the air intake pipe (630) and the outer housing (640) are fixedly connected with the right end cap (620), a plurality of perforated plates (650) are disposed between the inner housing (610) and the outer housing (640), the moving rod assembly (680) is disposed inside the inner housing (610), the right end cap (620) is fixedly connected with the outer housing (640) by bolts, the electric cylinder assembly (670) comprises a second motor (671) and an electric cylinder mounting plate (672), the electric cylinder assembly (670) and the left end cap (660) are fixedly connected by bolts, the second base (690) is disposed at the bottom of the outer housing (640) and is fixedly connected with the inner housing (610) by bolts, a plurality of tapered structures are disposed near the inner housing (610), the intake duct (630) is provided with a first pressure sensor (631).
8. The wastewater treatment device according to claim 7, characterized in that the outer housing (640) comprises a second exhaust pipe (641) and a drain pipe (646), the second exhaust pipe (641) is provided with a second pressure sensor (642), a first solenoid valve (643) and a drain pipe (644), the drain pipe (644) is provided with a second solenoid valve (645), and the drain pipe (646) is provided with a third solenoid valve (647).
9. The wastewater treatment apparatus according to claim 7, wherein the moving rod assembly (680) comprises a moving rod (681), a spiral plate (682) and a tapered cover plate (683), wherein one end of the moving rod (681) is provided with an electric cylinder extension shaft mounting threaded hole (6811), the other end of the moving rod (681) is provided with a kidney-shaped slot hole (6812), a plurality of fourth through holes (6813) are formed in a side surface of the moving rod (681), the spiral plate (682) is located inside the moving rod (681), and the tapered cover plate (683) is fixedly connected with the moving rod (681).
10. A method of using a wastewater treatment plant according to any one of claims 1 to 9, characterized in that the method of use comprises the following steps:
s1, separating windings and solid impurities in the wastewater, removing ammonia nitrogen and treating the wastewater after anaerobic treatment under normal conditions;
s2, in the method S1, when more easy-to-wind objects are wound in the stirring assembly (160), a method for processing the winding objects is provided;
s3, separating gas from a gas-liquid mixture containing more water generated by fermentation of an anaerobic treatment system (500);
the method S1 comprises the steps of:
s11, before use, all the electromagnetic valves, the motors and the sensors are communicated with a PLC control system, and all the motors, the electromagnetic valves and the manual valves are in a closed state;
s12, opening a first stop valve (121), injecting waste water into the box body (110) through a water inlet pipeline (120), opening a quick-plug stop valve (101), injecting high-pressure air into the stirring assembly (160) through the quick-plug pipe by using external high-pressure air supply equipment, closing the quick-plug stop valve (101) after the connecting rod (1672) is completely extended, stopping air supply, extracting the quick-plug pipe of the high-pressure air supply equipment from the quick-plug stop valve (101), starting a first motor (131) to drive the stirring assembly (160) to rotate in the box body (110), opening a second stop valve (151) after the box body runs for a period of time, and enabling the waste water to flow to the basket filter (200) through a first drainage pipeline (150);
s13, after solid-liquid separation is carried out on the wastewater in the basket filter (200), the separated wastewater is sprayed to the vertical flow constructed wetland tank (400) through the water spraying pipeline (300), most ammonia nitrogen in the wastewater is removed through the vertical flow constructed wetland tank (400), and then the wastewater flows to the anaerobic treatment system (500) through the second water draining pipeline (410);
s14, opening a third stop valve (511), and enabling the wastewater treated by the anaerobic treatment system (500) to flow to a subsequent aerobic treatment process through a third drainage pipeline;
the method S2 comprises the steps of:
s21, when more windings are wound on the stirring assembly (160) through the observation window, the first stop valve (121) is closed, when the waste water in the box body (110) cannot be discharged from the first drainage pipeline (150), the second stop valve (151) is closed, the operation of the first motor (131) is stopped, the drain valve on the first drain pipeline (170) is opened, the quick-plug stop valve (101) is opened, high-pressure air in the stirring assembly (160) flows outwards, the connecting rod (1672) contracts inwards under the action of the spring (166), the sealing gasket (180) and the sealing plate (190) are separated from the box body (110), after residues in the box body (110) are completely discharged, the drain valve on the first drain pipeline (170) is closed, the sealing gasket (180) and the sealing plate (190) are fixedly connected with the box body (110), and the step S1 is repeated;
the method S3 comprises the steps of:
s31, when the pressure of the methane containing moisture generated in the anaerobic treatment system (500) reaches the upper limit of the set pressure of the high pressure of the first pressure sensor (631), the first pressure sensor (631) feeds back signals to the PLC control system to enable the electric cylinder assembly (670) to shrink, the methane containing moisture enters the inner cavity of the movable rod (681) from the first exhaust pipeline (520) through the waist-shaped slotted hole (6812) from the air inlet pipeline (630), the methane containing moisture continuously changes in the flow speed and direction under the combined action of the spiral plate (682), the fourth slotted hole (6813), the third slotted hole (611) and the porous plate (650), gas-liquid separation is carried out under the combined action of centrifugal force and gravity, lighter gas is converged towards the second exhaust pipeline (641), and heavier liquid falls into the liquid discharge pipeline (646);
s32, as the pressure of the methane containing moisture generated in the anaerobic treatment system (500) continuously rises, when the pressure reaches the upper limit set by the second pressure sensor (642), the second pressure sensor (642) feeds back a signal to the PLC control system, the first electromagnetic valve (643) is opened, and the high-pressure methane with the moisture removed flows into a designated high-pressure output pipeline from the second exhaust pipeline (641);
s33, when the pressure of the biogas generated in the anaerobic treatment system (500) continuously drops, and when the pressure reaches the lower limit set by the second pressure sensor (642), the second pressure sensor (642) feeds back a signal to the PLC control system, the electric cylinder assembly (670) is extended while the first electromagnetic valve (643) is closed, the movable rod assembly (680) is completely sealed with the inner shell (610), and at the moment, the biogas generated by the anaerobic treatment system (500) cannot enter the inner cavity of the movable rod (681);
s34, after the movable rod assembly (680) is completely sealed with the inner shell (610), the second electromagnetic valve (645) is started, gas between the first electromagnetic valve (643) and the movable rod assembly (680) is exhausted, the second electromagnetic valve (645) is closed after the gas is exhausted, the third electromagnetic valve (647) is opened to discharge liquid to a specified pipeline, and the third electromagnetic valve (647) is closed.
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Denomination of invention: A wastewater treatment device and treatment method Granted publication date: 20240126 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN DONGBI ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: Y2024980021705 |
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