CN117164194B - Rapid sludge dewatering device and dewatering method - Google Patents
Rapid sludge dewatering device and dewatering method Download PDFInfo
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- CN117164194B CN117164194B CN202311202898.6A CN202311202898A CN117164194B CN 117164194 B CN117164194 B CN 117164194B CN 202311202898 A CN202311202898 A CN 202311202898A CN 117164194 B CN117164194 B CN 117164194B
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- 239000010802 sludge Substances 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000018044 dehydration Effects 0.000 claims abstract description 69
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 238000003860 storage Methods 0.000 claims abstract description 52
- 208000005156 Dehydration Diseases 0.000 claims description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
- 238000007789 sealing Methods 0.000 claims description 33
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 239000010865 sewage Substances 0.000 claims description 14
- 230000011218 segmentation Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
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Abstract
The invention discloses a rapid sludge dewatering device and a dewatering method, and relates to the technical field of sludge treatment. The invention comprises a lifting table, a first dewatering mechanism and a second dewatering mechanism, wherein a plurality of dewatering levels are sequentially arranged above the lifting table from top to bottom; the first dehydration mechanism is arranged corresponding to the first dehydration position; the first dewatering mechanism comprises a supporting component, a mud storage component and a dewatering component which are coaxial; the second dehydration mechanism is coaxially arranged below the first dehydration mechanism and corresponds to each dehydration position, and the lifting table is fixedly connected with the second dehydration mechanism corresponding to the fifth dehydration position; the second dewatering mechanism comprises a coaxial supporting component, a mud storage component, a dewatering component and a centrifugal component. According to the invention, the first dewatering mechanism and the plurality of second dewatering mechanisms are arranged in a tower shape, so that the upper layer dewatering mechanism is used for dewatering and the lower layer dewatering mechanism is used for inputting sludge, and the sludge dewatering treatment is sequentially performed from the top of the tower to the bottom of the tower, so that the sludge dewatering treatment efficiency and the sludge treatment capacity are improved.
Description
Technical Field
The invention belongs to the technical field of sludge treatment, and particularly relates to a rapid sludge dewatering device and a dewatering method.
Background
After biodegradation, the urban domestic sewage can generate a large amount of high-water-content sludge, the water content of the high-water-content sludge is generally higher than 98%, and in order to facilitate transportation and innocent treatment of the high-water-content sludge, the sludge needs to be dehydrated and concentrated.
The existing sludge dewatering and concentration mainly has two modes, one is to utilize a centrifugal principle to realize sludge dewatering treatment, and although the water content of the sludge can be reduced to a certain extent, the sludge treatment capacity is lower, and the requirement of batch sludge dewatering treatment cannot be met; the other is that a filter press is adopted to realize the sludge press filtration dehydration treatment, and the sludge press filtration dehydration treatment can be realized, but the equipment occupies a large area and the sludge treatment efficiency is lower. Therefore, we provide a rapid sludge dewatering device and a dewatering method for solving the technical problems.
Disclosure of Invention
The invention aims to provide a rapid sludge dewatering device and a dewatering method, which solve the problems in the background technology through the specific designs of a first dewatering mechanism and a second dewatering mechanism.
In order to solve the technical problems, the invention is realized by the following technical scheme:
The invention relates to a sludge rapid dehydration device, which comprises a lifting table, a first dehydration mechanism and a second dehydration mechanism; a first dewatering position, a second dewatering position, a third dewatering position, a fourth dewatering position and a fifth dewatering position are sequentially arranged above the lifting table from top to bottom; the first dehydration mechanism is arranged corresponding to the first dehydration position; the first dewatering mechanism comprises a supporting component, a mud storage component and a dewatering component which are coaxially arranged; the second dehydration mechanism is coaxially arranged below the first dehydration mechanism and is correspondingly arranged with each dehydration position except the first dehydration position, and the lifting table is fixedly connected with the second dehydration mechanism corresponding to the fifth dehydration position; the second dewatering mechanism comprises a supporting component, a mud storage component, a dewatering component and a centrifugal component which are coaxially arranged. The sludge rapid dehydration device can be used for respectively dehydrating at a first dehydration level, a second dehydration level, a third dehydration level, a fourth dehydration level and a fifth dehydration level;
The mud storage assembly comprises a mud storage ring body, and an inner gear ring is fixed on the inner wall of the mud storage ring body close to the top; the dehydration component comprises a dehydration tank which is rotationally arranged in the mud storage ring body, and a mud pressing disc which can move up and down is in clearance fit in the dehydration tank.
The invention is further provided that a traveling gear meshed with the inner gear ring is arranged above the dewatering box, an adjusting shaft rotationally connected with the dewatering box is fixed on the surface of the traveling gear, and a first magnetic pusher is in threaded fit with the peripheral side surface of the adjusting shaft; the centrifugal assembly comprises a centrifugal disc clamped with the bottom of the corresponding dewatering box, an annular cavity is formed in the centrifugal disc, a plurality of dividing ports penetrating through the top of the centrifugal disc are formed in the periphery of the annular cavity, an adjusting channel in clearance fit with the first magnetic pusher is formed in the top of the centrifugal disc, and a radial channel communicated with the annular cavity is formed in the adjusting channel.
The invention is further characterized in that a dividing assembly is arranged in the centrifugal disc, the dividing assembly comprises a movable ring which is arranged in the annular cavity in a sliding mode, a dividing knife which is in clearance fit with the dividing opening is fixed at the top of the movable ring, a second magnetic pusher which is magnetically repelled with the first magnetic pusher is arranged in the radial channel, and the dividing knife is moved upwards to cut mud cakes through the magnetic repulsive force of the second magnetic pusher to the dividing assembly.
The invention is further arranged that the supporting component comprises a drainage supporting ring, the inner wall of the drainage supporting ring is connected with two arc-shaped sealing plates through radial supporting plates, and the outer wall of the drainage supporting ring is fixed with a mud blocking ring body which is coaxial with the drainage supporting ring through an extension seat; the top of the drainage supporting ring is provided with a rotation driving motor, and an output shaft of the rotation driving motor is connected with a rotation driving gear.
The invention is further characterized in that an external tooth ring meshed with the driving gear is fixed on the outer wall of the mud storage ring body close to the top, arc water outlet openings corresponding to the arc sealing plates one by one are arranged on the peripheral side face of the mud storage ring body, an arc storage cavity is arranged at one end of each arc water outlet opening, and the arc sealing plates are in sliding fit with the corresponding arc storage cavities.
The invention is further arranged that the top of the dewatering box is respectively provided with a mud pressing motor and a mud feeding pipe, the output end of the mud pressing motor is connected with a mud pressing screw rod which is in threaded fit with a mud pressing disc, one end of the mud feeding pipe extends into the dewatering box, and the other end of the mud feeding pipe is coaxially arranged with the dewatering box; a limiting frame positioned above the mud pressing disc is connected between the mud pressing screw and the adjusting shaft, a buoyancy plate is slidably matched with the circumferential side surface of the mud pressing screw, a trigger rod coaxial with a through hole on the mud pressing disc is fixed at the top of the buoyancy plate, and the trigger rod is correspondingly arranged with a pressure sensor at the top in the dewatering box; the top of the centrifugal disk is provided with a clamping groove, and the bottom of the dewatering box is inherently connected with a clamping plate corresponding to the clamping groove in a clamping way.
The invention is further arranged that the first magnetic pusher comprises a rectangular movable seat, and a side wall of the rectangular movable seat is provided with a first permanent magnet; a thread structure is arranged on the peripheral side surface of the adjusting shaft near the bottom, and the rectangular movable seat is in threaded fit with the thread structure; when the rectangular movable seat moves upwards to be completely positioned in the adjusting channel, the rectangular movable seat just breaks away from the threaded structure.
The invention is further arranged that the second magnetic pusher comprises a fixed plate and a movable plate which are arranged in the radial channel, an elastic element is connected between the fixed plate and the movable plate, a movable rod which is in sliding fit with the fixed plate is arranged on one side wall of the movable plate, and a second permanent magnet which is in repulsion with the first permanent magnet is fixed at one end of the movable rod; the bottom of the movable ring is provided with a magnetic force port, and the top of the movable plate is provided with an electromagnet which is magnetically repulsed from the magnetic force port.
The centrifugal assembly further comprises a sealing drainage ring attached to the bottom of the corresponding drainage support ring, and the top of the sealing drainage ring is fixedly connected with a conical drainage ring attached to the bottom of the mud pressing disc; the inner wall of the sealing drainage ring is fixedly provided with a mounting frame, the bottom of the mounting frame is provided with a centrifugal motor, and an output shaft of the centrifugal motor is fixedly connected to the bottom of the mud pressing disc; the bottom of the sealing drainage ring is fixedly provided with a conical water collecting ring, and the bottom of the conical water collecting ring is fixedly provided with a connecting column fixedly connected with the top of the corresponding drainage support ring; the outer side of the sealing drainage ring is provided with a water storage ring body fixedly connected with the conical water collecting ring, the peripheral side of the water storage ring body is provided with a drainage joint, and a plurality of water collecting ports are arranged at the position, close to the bottom, of the peripheral side of the sealing drainage ring.
The invention has the following beneficial effects:
1. According to the invention, the first dewatering mechanism and the plurality of second dewatering mechanisms are arranged into the tower-shaped structure, and the upper layer dewatering mechanism carries out dewatering treatment and simultaneously carries out sludge input in the lower layer dewatering mechanism, so that the sludge dewatering treatment is carried out sequentially from the top of the tower to the bottom of the tower, the efficiency of the sludge dewatering treatment is improved, the sludge treatment capacity is greatly increased, the occupied area of the sludge treatment equipment is reduced, and the popularization of the sludge dewatering treatment equipment in the environment-friendly field is facilitated.
2. According to the invention, the dewatering tank and the centrifugal disc are arranged on different dewatering levels and are connected in a clamping manner, when the centrifugal dewatering of sludge in the dewatering tank is realized through the rotation of the centrifugal disc, and the sludge disc is extruded into sludge cakes, the centrifugal disc is downwards moved away from the dewatering tank under the action of the lifting table, and the centrifugal collection of the sludge cakes can be realized under the rotation of the centrifugal disc, so that the dewatering rate of the sludge and the collection efficiency of the sludge cakes are improved.
3. After the centrifugal dehydration of the high-moisture sludge is realized, the centrifugal dehydration sludge is extruded through the downward movement of the sludge pressing disc, the dehydration treatment of the sludge is further realized, after the sludge cake is formed by extrusion, the electromagnet is controlled to be electrified to have magnetism, and the magnetic repulsive force of the electromagnet to the magnetic force port on the movable ring is utilized to enable the separating knife to move upwards to be attached to the bottom of the sludge pressing disc, so that the sludge cake is rapidly divided into sludge cake blocks, and the high-efficiency collection of the sludge cake blocks can be realized under the centrifugal rotation force.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a sludge rapid dewatering device according to a first embodiment of the present invention.
Fig. 2 is a schematic structural view of a first dewatering mechanism according to the present invention.
Fig. 3 is a schematic structural view of a support assembly according to the present invention.
FIG. 4 is a schematic view of a mud storage assembly according to the present invention.
Fig. 5 is a schematic view showing the structure of the dewatering module according to the present invention.
Fig. 6 is a schematic view of the structure of fig. 5 from the bottom.
Fig. 7 is an enlarged view of a partial structure at a in fig. 6.
Fig. 8 is an enlarged view of a partial structure at B in fig. 6.
Fig. 9 is a schematic structural view of a second dewatering mechanism according to an embodiment of the present invention.
FIG. 10 is a diagram illustrating the use of a centrifuge assembly in combination with a separator assembly according to an embodiment of the present invention.
Figure 11 is a longitudinal structural cross-sectional view of a centrifuge assembly in accordance with an embodiment of the present invention.
Figure 12 is a cross-sectional view of a transverse structure of a centrifuge assembly in accordance with an embodiment of the present invention.
Fig. 13 is an enlarged view of a partial structure at C in fig. 12.
Fig. 14 is a schematic structural diagram of a dividing assembly according to an embodiment of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. A first dewatering mechanism; 2. a support assembly; 201. a drainage support ring; 202. an arc-shaped sealing plate; 203. a mud baffle ring body; 204. a drive gear; 3. a mud storage assembly; 301. a mud storage ring body; 302. an inner gear ring; 303. an outer toothed ring; 304. arc-shaped water removing openings; 305. an arc-shaped storage cavity; 4. a dewatering assembly; 401. a dewatering box; 402. a mud pressing disc; 403. a traveling gear; 404. an adjusting shaft; 405. a mud pressing motor; 406. a mud inlet pipe; 407. a mud pressing screw; 408. a buoyancy plate; 409. a through hole; 410. a trigger lever; 411. a clamping plate; 5. a second dewatering mechanism; 6. a centrifuge assembly; 601. a centrifugal disc; 602. an annular cavity; 603. a dividing opening; 604. a regulating channel; 605. a radial passage; 606. a clamping groove; 607. sealing the drainage ring; 608. a conical drainage ring; 609. a centrifugal motor; 610. a conical water collection ring; 611. a connecting column; 612. a water storage ring body; 613. a drain joint; 614. a water collecting port; 7. a first magnetic pusher; 701. a rectangular movable seat; 702. a first permanent magnet; 703. a thread structure; 8. a segmentation component; 801. a moving ring; 802. a dividing knife; 803. a magnetic force port; 9. a second magnetic pusher; 901. an elastic element; 902. a moving rod; 903. a second permanent magnet; 904. an electromagnet.
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.
Detailed description of the preferred embodiments
Referring to fig. 1-14, the present invention is a rapid sludge dewatering device, comprising a lifting platform, a first dewatering mechanism 1 and a second dewatering mechanism 5; a first dewatering position, a second dewatering position, a third dewatering position, a fourth dewatering position and a fifth dewatering position are sequentially arranged above the lifting table from top to bottom; the first dehydration mechanism 1 is arranged corresponding to the first dehydration position; the first dewatering mechanism 1 comprises a supporting component 2, a mud storage component 3 and a dewatering component 4 which are coaxially arranged; the second dehydration mechanism 5 is coaxially arranged below the first dehydration mechanism 1 and corresponds to each dehydration position, and the lifting table is fixedly connected with the second dehydration mechanism 5 corresponding to the fifth dehydration position; the second dewatering mechanism 5 comprises a supporting component 2, a mud storage component 3, a dewatering component 4 and a centrifugal component 6 which are coaxially arranged;
The mud storage assembly 3 comprises a mud storage ring body 301, and an inner gear ring 302 is fixed on the inner wall of the mud storage ring body 301 close to the top; the dewatering assembly 4 comprises a dewatering box 401 rotatably arranged in the mud storage ring 301, the bottom of the dewatering box 401 is provided with an opening structure, a mud pressing disc 402 capable of moving up and down is in clearance fit in the dewatering box 401, a traveling gear 403 meshed with the inner gear ring 302 is arranged above the dewatering box 401, synchronous rotation of the traveling gear 403 can be realized when the dewatering box 401 rotates (at the moment, the traveling gear 403 rotates around the axis of the dewatering box 401), the traveling gear 403 is driven by external force in the process, the traveling gear 403 rotates, an adjusting shaft 404 in rotary connection with the dewatering box 401 is fixed on the surface of the traveling gear 403, and a first magnetic pusher 7 is in threaded fit on the circumferential side surface of the adjusting shaft 404;
The centrifugal assembly 6 comprises a centrifugal disc 601 which is clamped with the bottom of the corresponding dewatering box 401, synchronous centrifugal rotation of the dewatering box 401 along with the centrifugal disc 601 can be realized during clamping, mud cake blocks on the surface of the centrifugal disc can be thrown and collected through the centrifugal force of rotation of the centrifugal disc 601 when the clamping of the centrifugal disc 601 to the dewatering box 401 is released, an annular cavity 602 is arranged in the centrifugal disc 601, a plurality of dividing ports 603 penetrating through the top of the centrifugal disc 601 are arranged on the periphery of the annular cavity 602, an adjusting channel 604 in clearance fit with the first magnetic pusher 7 is arranged at the top of the centrifugal disc 601, and a radial channel 605 communicated with the annular cavity 602 is arranged in the adjusting channel 604;
The centrifugal disc 601 is internally provided with a dividing component 8, the dividing component 8 comprises a moving ring 801 which is arranged in the annular cavity 602 in a sliding manner, a dividing knife 802 which is in clearance fit with the dividing opening 603 is fixed at the top of the moving ring 801, the dividing knife 802 is positioned in the corresponding dividing opening 603 in the centrifugal dewatering or mud pressing process, so that the centrifugal dewatering or centrifugal dewatering of the mud cannot be influenced, a second magnetic pusher 9 which is magnetically repelled with the first magnetic pusher 7 is arranged in the radial channel 605, and the dividing knife 802 moves upwards to cut mud cakes through the magnetic repulsive force of the dividing component 8 by the second magnetic pusher 9.
In the embodiment of the invention, the supporting component 2 comprises a drainage supporting ring 201, the inner wall of the drainage supporting ring 201 is connected with two arc-shaped sealing plates 202 through radial supporting plates, the outer wall of the drainage supporting ring 201 is fixed with a mud baffle ring body 203 coaxial with the drainage supporting ring through an extension seat, and in the process of collecting mud cake blocks by rotating the centrifugal disk 601, the mud cake blocks cannot be thrown out for a long distance due to a large centrifugal force due to the mud baffle ring body 203, so that the mud cake blocks thrown out centrifugally are ensured to fall around the lifting table, and the subsequent collection and treatment of the mud cake blocks are facilitated; a rotation driving motor is arranged at the top of the drainage supporting ring 201, and an output shaft of the rotation driving motor is connected with a rotation driving gear 204;
An outer tooth ring 303 meshed with the rotation driving gear 204 is fixed on the outer wall of the mud storage ring body 301 near the top, arc water removal ports 304 corresponding to the arc sealing plates 202 one by one are arranged on the peripheral side surface of the mud storage ring body 301, an arc storage cavity 305 is arranged at one end of each arc water removal port 304, and the arc sealing plates 202 are in sliding fit with the corresponding arc storage cavities 305; after the high-water-content sludge in the dewatering box 401 is conveyed, the control system controls the rotation driving motor to drive the rotation driving gear 204 to rotate, the rotation of the sludge storage ring body 301 is realized by the cooperation of the rotation driving gear 204 and the outer toothed ring 303, when the rotation driving motor stops running, the arc-shaped sealing plate 202 releases the sealing of the arc-shaped dewatering opening 304 and is slidingly stored in the corresponding arc-shaped storage cavity 305, and centrifugal sewage is centrifugally thrown out from the arc-shaped dewatering opening 304.
In the embodiment of the invention, the top of the dewatering box 401 is respectively provided with a mud pressing motor 405 and a mud inlet pipe 406, the output end of the mud pressing motor 405 is connected with a mud pressing screw 407 which is in threaded fit with the mud pressing disc 402, one end of the mud inlet pipe 406 extends into the dewatering box 401, and the other end of the mud inlet pipe 406 is arranged coaxially with the dewatering box 401; after the centrifugal dehydration of the sludge in the dehydration tank 401 is completed, the control system controls the sludge pressing motor 405 to drive the sludge pressing screw 407 to rotate, and at the moment, the sludge pressing disc 402 moves downwards along the sludge pressing screw 407 to realize the extrusion dehydration of the sludge after the centrifugal dehydration, and finally the sludge is formed into a sludge cake;
A limiting frame positioned above the mud pressing disc 402 is connected between the mud pressing screw 407 and the adjusting shaft 404, and through the arrangement of the limiting frame, the mud pressing disc 402 cannot be synchronously rotated along with the mud pressing screw 407 when the mud pressing screw 407 rotates, so that the mud pressing disc 402 can only move up and down, a buoyancy plate 408 is slidably matched with the side face of the circumference of the mud pressing screw 407, a trigger rod 410 coaxial with a through hole 409 on the mud pressing disc 402 is fixed at the top of the buoyancy plate 408, and the trigger rod 410 is correspondingly arranged with a pressure sensor at the inner top of the dewatering box 401; in the process of conveying the high-water-content sludge into the dewatering tank 401, the buoyancy plate 408 moves upwards under the buoyancy, and when the trigger rod 410 on the buoyancy plate 408 passes through the through hole 409 to contact the pressure sensor, the continuous conveying of the high-water-content sludge into the dewatering tank 401 is stopped;
The top of the centrifugal disc 601 is provided with a clamping groove 606, and the bottom of the dewatering box 401 is fixedly provided with a clamping plate 411 which is in clamping connection with the corresponding clamping groove 606; the clamping mode is convenient for realizing that the dewatering box 401 centrifugally rotates along with the centrifugal disk 601, and simultaneously, the dewatering box 401 is conveniently separated from the centrifugal disk 601.
In this embodiment of the present invention, the first magnetic pusher 7 includes a rectangular movable seat 701, and in an initial state, the rectangular movable seat 701 is clearance-fitted inside the corresponding adjustment channel 604, and a side wall of the rectangular movable seat 701 is provided with a first permanent magnet 702; a thread structure 703 is arranged on the peripheral side surface of the adjusting shaft 404 near the bottom, and the rectangular movable seat 701 is in threaded fit with the thread structure 703; in the process of opening the arc-shaped water outlet 304 through rotation of the mud storage ring body 301, the traveling gear 403 rotates to enable the adjusting shaft 404 to rotate synchronously, and then the rectangular moving seat 701 moves upwards to be completely located in the adjusting channel 604 under the threaded cooperation of the threaded structure 703 and the rectangular moving seat 701, at the moment, the rectangular moving seat 701 is just separated from the threaded structure 703, at the moment, even if the traveling gear 403 rotates in the same direction again, the rectangular moving seat 701 is not caused to continue to move upwards, and further the rectangular moving seat 701 is always located in the adjusting channel 604, and the downward movement of the rectangular moving seat 701 can be realized only when the adjusting shaft 404 rotates reversely.
In this embodiment of the present invention, the second magnetic thruster 9 includes a fixed plate and a moving plate disposed in the radial channel 605, an elastic element 901 is connected between the fixed plate and the moving plate, a moving rod 902 slidably matched with the fixed plate is disposed on a side wall of the moving plate, and a second permanent magnet 903 magnetically repelling the first permanent magnet 702 is fixed on one end of the moving rod 902;
The bottom of the movable ring 801 is provided with a magnetic force port 803, and the top of the movable plate is provided with an electromagnet 904 which is magnetically repulsive to the magnetic force port 803; after the centrifugal dehydration of the high-moisture sludge is realized, the centrifugal dehydrated sludge is extruded through the downward movement of the mud pressing disc 402, the dehydration treatment of the sludge is further realized, after the mud cake is formed by extrusion, the control system controls the electromagnet 904 to be electrified and magnetized, the magnetic repulsive force of the electromagnet 904 to the magnetic force port 803 on the movable ring 801 is utilized to enable the dividing knife 802 to move upwards and be attached to the bottom of the mud pressing disc 402, so that the mud cake can be quickly divided into mud cake blocks, the efficient collection of the mud cake blocks can be realized under the centrifugal rotation force, the electromagnet 904 is automatically powered off and demagnetized after the mud cake division is completed, and at the moment, each dividing knife 802 moves down to the corresponding dividing port 603 again.
In this embodiment of the present invention, the centrifugal assembly 6 further includes a sealing drainage ring 607 attached to the bottom of the corresponding drainage support ring 201, and a conical drainage ring 608 attached to the bottom of the mud pressing disk 402 is fixedly connected to the top of the sealing drainage ring 607; by the arrangement of the conical drainage ring 608, mud cake blocks falling onto the inclined surface of the conical drainage ring 608 in the centrifugal process can slide off the conical drainage ring 608 smoothly on one hand, and sewage after centrifugation can flow downwards through the conical drainage ring 608 conveniently on the other hand;
The inner wall of the sealing drainage ring 607 is fixedly provided with a mounting frame, the bottom of the mounting frame is provided with a centrifugal motor 609, and the output shaft of the centrifugal motor 609 is fixedly connected to the bottom of the mud pressing disc 402; the bottom of the sealing drainage ring 607 is fixedly provided with a conical water collecting ring 610, and the centrifuged sewage flows into the conical water collecting ring 610 after passing through the conical drainage ring 608, and the bottom of the conical water collecting ring 610 is fixedly provided with a connecting column 611 fixedly connected with the top of the corresponding drainage support ring 201;
a water storage ring body 612 fixedly connected with the conical water collecting ring 610 is arranged on the outer side of the sealing drainage ring 607, a drainage joint 613 is arranged on the peripheral side of the water storage ring body 612, and a plurality of water collecting ports 614 are arranged on the peripheral side surface of the sealing drainage ring 607 close to the bottom; after the centrifuged sewage flows into the tapered water collecting ring 610 through the tapered water discharging ring 608, the sewage flows into the water storing ring body 612 along the tapered water collecting ring 610 and the water collecting port 614, and is discharged and collected by the water discharging joint 613.
Second embodiment
The invention also provides a rapid sludge dewatering device, which is characterized in that compared with the rapid sludge dewatering device in the first specific embodiment, the rapid sludge dewatering device comprises the following steps: in this particular embodiment only one second dewatering mechanism 5 is included, the first dewatering mechanism 1 being located above the second dewatering mechanism 5.
In this embodiment, the connection manner of the first dewatering mechanism 1 and the second dewatering mechanism 5, and the specific structural composition of the first dewatering mechanism 1 and the second dewatering mechanism 5 are identical to those of the first embodiment. And will not be described in detail.
It should be noted that the number of dewatering tables and the corresponding number of second dewatering mechanisms 5 may be set according to actual situations. Not limited to the five water removal levels and four second water removal mechanisms 5 in the first embodiment of the present application, but two water removal levels and one second water removal mechanism 5 in the second embodiment of the present application.
Detailed description of the preferred embodiments
The invention provides a dehydration method of a rapid sludge dehydration device, which comprises the following steps:
S01, high-water-content sludge flows into the closed dewatering tank 401 from the sludge inlet pipe 406 at the first dewatering position until the trigger rod 410 on the buoyancy plate 408 contacts the pressure sensor, at this time, the sludge inlet pipe 406 stops feeding the sludge, and the sludge inlet pipe 406 at the second dewatering position starts feeding the sludge;
S02, the driving motor operates to drive the driving gear 204 to rotate, the mud storage ring body 301 rotates synchronously under the cooperation of the driving gear 204 and the external gear ring 303 until the arc-shaped sealing plate 202 completely enters the corresponding arc-shaped storage cavity 305 to open the arc-shaped water outlet 304, at the moment, the first magnetic pusher 7 completely moves up to the inside of the adjusting channel 604, and the electromagnet 904 is horizontally inserted into the magnetic force opening 803;
S03, a centrifugal motor 609 drives a centrifugal disc 601 and a dewatering box 401 to synchronously and centrifugally rotate, sewage centrifugally dewatered in the dewatering box 401 is centrifugally thrown out from an arc-shaped dewatering opening 304, sewage flows into a conical drainage ring 608 along a drainage support ring 201, sewage flows into a conical water collecting ring 610 through the conical drainage ring 608, flows into a water storage ring 612 along a water collecting opening 614, and is finally discharged and collected by a drainage joint 613;
S04, a mud pressing motor 405 operates to drive a mud pressing screw 407 to rotate, and the mud pressing screw 407 is matched with a mud pressing disc 402 to enable the mud pressing disc 402 to extrude the centrifugally dewatered mud, so that the sludge is fully dewatered to form mud cakes;
s05, referring to the steps S01-S04, dehydrating and pressing sludge of high-water-content sludge at each water-removing level until sludge in the water-removing tank 401 at each water-removing level is extruded into sludge cakes, at the moment, the electromagnet 904 at each water-removing level is electrified and magnetized, and the dividing knife 802 is used for dividing the sludge cakes under the magnetic repulsive force, so that the sludge cakes in each water-removing tank 401 are divided into a plurality of sludge cake blocks;
s06, keeping a first dewatering mechanism 1 at a first dewatering position in situ, lowering a lifting table to enable a centrifugal disc 601 at a second dewatering position to move downwards to a mud baffle ring 203 at the first dewatering position, starting a centrifugal motor 609 at the second dewatering position to control the centrifugal disc 601 to rotate, enabling mud cake blocks on the surface of the centrifugal disc 601 to be thrown out under the centrifugal force, enabling the thrown mud cake blocks to fall and gather around the lifting table under the action of the mud baffle ring 203, and then enabling the lifting table to move upwards for reset;
S07, keeping a second dewatering mechanism 5 at the second dewatering level in situ, lowering a lifting table to enable a centrifugal disc 601 at the third dewatering level to move downwards to a mud baffle ring 203 at the second dewatering level, starting a centrifugal motor 609 at the third dewatering level to control the centrifugal disc 601 to rotate, enabling mud cake blocks on the surface of the centrifugal disc 601 to be thrown out under the centrifugal force, enabling the thrown mud cake blocks to fall and gather around the lifting table under the action of the mud baffle ring 203, and then enabling the lifting table to move upwards for reset;
s08, referring to the step S07, centrifugal throwing of the mud cake blocks on the surface of the centrifugal disc 601 at each dewatering point is achieved, and therefore centrifugal collection of all the mud cake blocks is completed.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. A rapid sludge dewatering device, comprising:
the lifting platform is provided with a first dewatering level, a second dewatering level, a third dewatering level, a fourth dewatering level and a fifth dewatering level from top to bottom in sequence;
the first dehydration mechanism is arranged corresponding to the first dehydration position; the first dehydration mechanism comprises a supporting component, a mud storage component and a dehydration component which are coaxially arranged; and
The second dehydration mechanism is coaxially arranged below the first dehydration mechanism and corresponds to each dehydration position except the first dehydration position, and the lifting table is fixedly connected with the second dehydration mechanism corresponding to the fifth dehydration position;
The rapid sludge dewatering device can dewater at the first dewatering position, the second dewatering position, the third dewatering position, the fourth dewatering position and the fifth dewatering position respectively; the second dewatering mechanism comprises a supporting component, a mud storage component, a dewatering component and a centrifugal component which are coaxially arranged; the mud storage assembly comprises a mud storage ring body, and an inner gear ring is fixed on the inner wall of the mud storage ring body close to the top; the dehydration assembly comprises a dehydration tank rotationally arranged in the mud storage ring body, a mud pressing disc which moves up and down is in clearance fit in the dehydration tank, a traveling gear meshed with the inner gear ring is arranged above the dehydration tank, an adjusting shaft rotationally connected with the dehydration tank is fixed on the surface of the traveling gear, and a first magnetic pusher is in threaded fit with the peripheral side surface of the adjusting shaft; the centrifugal assembly comprises a centrifugal disc clamped with the bottom of a corresponding dewatering box, an annular cavity is formed in the centrifugal disc, a plurality of dividing ports penetrating through the top of the centrifugal disc are formed in the periphery of the annular cavity, an adjusting channel in clearance fit with the first magnetic pusher is formed in the top of the centrifugal disc, and a radial channel communicated with the annular cavity is formed in the adjusting channel;
The centrifugal disc is internally provided with a segmentation component, the segmentation component comprises a movable ring which is arranged in the annular cavity in a sliding way, the top of the movable ring is fixedly provided with a segmentation knife which is in clearance fit with the segmentation opening, the radial channel is internally provided with a second magnetic thruster which is magnetically repulsive to the first magnetic thruster, and the segmentation knife is upwards moved to cut mud cakes through the magnetic repulsive force of the second magnetic thruster to the segmentation component;
The support assembly comprises a drainage support ring, the inner wall of the drainage support ring is connected with two arc-shaped sealing plates through radial support plates, and the outer wall of the drainage support ring is fixed with a mud blocking ring body which is coaxial with the drainage support ring body through an extension seat; a rotation driving motor is arranged at the top of the drainage supporting ring, and an output shaft of the rotation driving motor is connected with a rotation driving gear;
An outer tooth ring meshed with the driving gear is fixed on the outer wall of the mud storage ring body close to the top, arc water outlet openings corresponding to the arc sealing plates one by one are arranged on the peripheral side face of the mud storage ring body, an arc storage cavity is arranged at one end of each arc water outlet opening, and the arc sealing plates are in sliding fit with the corresponding arc storage cavities;
After the centrifugal dehydration of the high-water-content sludge is realized, the centrifugal dehydrated sludge is extruded through the downward movement of the mud pressing disc, so that the dehydration treatment of the sludge is realized, after a mud cake is formed by extrusion, the electromagnet is controlled to be electrified to have magnetism, the magnetic repulsive force of the electromagnet to the magnetic force port on the movable ring is utilized to enable the dividing knife to move upwards to be attached to the bottom of the mud pressing disc, the mud cake is quickly divided into mud cake blocks, and the collection of the mud cake blocks is realized under the centrifugal rotation force.
2. The rapid sludge dewatering device according to claim 1, wherein a sludge pressing motor and a sludge feeding pipe are respectively arranged at the top of the dewatering tank, the output end of the sludge pressing motor is connected with a sludge pressing screw rod in threaded fit with the sludge pressing disc, one end of the sludge feeding pipe extends into the dewatering tank, and the other end of the sludge feeding pipe is coaxially arranged with the dewatering tank;
A limiting frame positioned above the mud pressing disc is connected between the mud pressing screw and the adjusting shaft, a buoyancy plate is slidably matched with the peripheral side face of the mud pressing screw, a trigger rod coaxial with a through hole on the mud pressing disc is fixed at the top of the buoyancy plate, and the trigger rod is correspondingly arranged with a pressure sensor at the top in the dewatering box;
the top of the centrifugal disc is provided with a clamping groove, and the bottom of the dewatering box is inherently connected with a clamping plate corresponding to the clamping groove in a clamping way.
3. The rapid sludge dewatering device according to claim 2, wherein the first magnetic pusher comprises a rectangular movable seat, and a side wall of the rectangular movable seat is provided with a first permanent magnet; a thread structure is arranged on the peripheral side surface of the adjusting shaft near the bottom, and the rectangular movable seat is in threaded fit with the thread structure; when the rectangular movable seat moves upwards to be completely positioned in the adjusting channel, the rectangular movable seat just breaks away from the threaded structure.
4. The rapid sludge dewatering device according to claim 3, wherein the second magnetic pusher comprises a fixed plate and a movable plate which are arranged in the radial channel, an elastic element is connected between the fixed plate and the movable plate, a movable rod which is in sliding fit with the fixed plate is arranged on one side wall of the movable plate, and a second permanent magnet which is in repulsion with the first permanent magnet is fixed at one end of the movable rod;
The bottom of the movable ring is provided with a magnetic force port, and the top of the movable plate is provided with an electromagnet which is magnetically repulsed from the magnetic force port.
5. The rapid sludge dewatering device according to claim 4, wherein the centrifugal assembly further comprises a sealing drainage ring attached to the bottom of the corresponding drainage support ring, and a conical drainage ring attached to the bottom of the sludge pressing disc is fixedly connected to the top of the sealing drainage ring;
The inner wall of the sealing drainage ring is fixedly provided with a mounting frame, the bottom of the mounting frame is provided with a centrifugal motor, and an output shaft of the centrifugal motor is fixedly connected to the bottom of the mud pressing disc; the bottom of the sealing drainage ring is fixedly provided with a conical water collecting ring, and the bottom of the conical water collecting ring is fixedly provided with a connecting column fixedly connected with the top of the corresponding drainage support ring;
The water storage ring body fixedly connected with the conical water collecting ring is arranged on the outer side of the sealing drainage ring, a drainage joint is arranged on the peripheral side of the water storage ring body, and a plurality of water collecting ports are arranged on the peripheral side face of the sealing drainage ring close to the bottom.
6. A dewatering method using the sludge rapid dewatering apparatus according to claim 5, comprising the steps of:
S01, high-water-content sludge flows into a closed dewatering tank from a sludge inlet pipe at a first dewatering position until a trigger rod on a buoyancy plate contacts a pressure sensor, at the moment, the sludge inlet pipe stops feeding sludge, and a sludge inlet pipe at a second dewatering position starts feeding sludge;
S02, the driving motor operates to drive the driving gear to rotate, the mud storage ring body synchronously rotates under the cooperation of the driving gear and the external tooth ring until the arc-shaped sealing plate completely enters the corresponding arc-shaped storage cavity to open the arc-shaped water outlet, at the moment, the first magnetic pusher completely moves upwards to the inside of the adjusting channel, and the electromagnet is horizontally inserted into the magnetic force opening;
S03, driving a centrifugal disc and a dewatering box to synchronously and centrifugally rotate by a centrifugal motor, centrifugally throwing out sewage after centrifugal dewatering in the dewatering box from an arc-shaped dewatering port, enabling the sewage to flow into a conical drainage ring along a drainage supporting ring, enabling the sewage to flow into a conical water collecting ring through the conical drainage ring, enabling the sewage to flow into a water storage ring body along a water collecting port, and finally discharging and collecting the sewage through a drainage joint;
s04, the mud pressing motor operates to drive the mud pressing screw to rotate, and the mud pressing disc extrudes the centrifugally dewatered mud under the cooperation of the mud pressing screw and the mud pressing disc, so that the sludge is fully dewatered to form mud cakes;
S05, referring to the steps S01-S04, dehydrating and pressing sludge of high-water-content sludge at each water-removing level until sludge in the water-removing tank at each water-removing level is extruded into sludge cakes, at the moment, the electromagnet at each water-removing level is electrified to have magnetism, and dividing treatment of the sludge cakes by the dividing knife is realized under the magnetic repulsive force, so that the sludge cakes in each water-removing tank are divided into a plurality of sludge cake blocks;
S06, keeping a first dehydration mechanism at a first dehydration position in situ, lowering a lifting table to enable a centrifugal disc at a second dehydration position to move downwards to a mud baffle ring body of the first dehydration position, starting a centrifugal motor at the second dehydration position to control the centrifugal disc to rotate, throwing out mud cake blocks on the surface of the centrifugal disc under the centrifugal force, enabling the thrown mud cake blocks to fall and gather around the lifting table under the action of the mud baffle ring body, and then upwards moving and resetting the lifting table;
S07, keeping a second dewatering mechanism at the second dewatering level in situ, lowering a lifting table to enable a centrifugal disc at the third dewatering level to move downwards to a mud blocking ring of the second dewatering level, starting a centrifugal motor at the third dewatering level to control the centrifugal disc to rotate, throwing out mud cake blocks on the surface of the centrifugal disc under the centrifugal force, enabling the thrown mud cake blocks to fall and gather around the lifting table under the action of the mud blocking ring, and then upwards moving and resetting the lifting table;
S08, referring to the step S07, centrifugal throwing of the mud cake blocks on the surface of the centrifugal disc at each dewatering position is realized, and therefore centrifugal collection of all the mud cake blocks is completed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311202898.6A CN117164194B (en) | 2023-09-18 | 2023-09-18 | Rapid sludge dewatering device and dewatering method |
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| CN202311202898.6A CN117164194B (en) | 2023-09-18 | 2023-09-18 | Rapid sludge dewatering device and dewatering method |
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| CN117164194B true CN117164194B (en) | 2024-08-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804576A (en) * | 2022-05-21 | 2022-07-29 | 那自恒 | Self-cleaning sludge dewatering machine and use method thereof |
| CN217578656U (en) * | 2022-04-25 | 2022-10-14 | 中建六局华南建设有限公司 | Silt dewatering device is used in building engineering construction |
| CN219314799U (en) * | 2022-08-10 | 2023-07-07 | 盛弘环境(海南)国际生态科技产业集团发展有限公司 | Sludge dewatering device for sewage treatment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217965B (en) * | 2019-06-03 | 2022-03-15 | 广东恒鑫智能装备股份有限公司 | Vertical multilayer sludge dewatering device |
| CN217265386U (en) * | 2022-04-26 | 2022-08-23 | 沧州市供水排水集团有限公司 | Dewatering device for sewage sludge |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217578656U (en) * | 2022-04-25 | 2022-10-14 | 中建六局华南建设有限公司 | Silt dewatering device is used in building engineering construction |
| CN114804576A (en) * | 2022-05-21 | 2022-07-29 | 那自恒 | Self-cleaning sludge dewatering machine and use method thereof |
| CN219314799U (en) * | 2022-08-10 | 2023-07-07 | 盛弘环境(海南)国际生态科技产业集团发展有限公司 | Sludge dewatering device for sewage treatment |
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