Sludge dewatering and deslagging device for waterworks

Abstract

The invention discloses a waterworks sludge dewatering and deslagging device, and belongs to the technical field of sludge treatment.The waterworks sludge dewatering and deslagging device comprises a lifting bottom plate, and a filtering mechanism is arranged on the upper surface of the lifting bottom plate; the filtering mechanism comprises a filtering assembly for dewatering and filtering the sludge, a blocking assembly for driving the filtering assembly to rotate and adjusting the opening and closing states of the bottom opening end of the filtering assembly, and a pressurizing assembly for cooperating with the filtering assembly to compress the sludge; the pressurizing assembly is arranged at the top of the filtering assembly, the plugging assembly is arranged at the bottom of the filtering assembly, and the filtering assembly comprises a second limiting supporting disc; through mutual cooperation of multiple structures, sludge is subjected to centrifugal dewatering and extrusion dewatering, through mutual cooperation of the two dewatering modes, rapid and sufficient dewatering of the sludge is achieved, and the dewatered sludge can be automatically and rapidly discharged.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sludge treatment, and particularly relates to a sludge dewatering and discharging device for a waterworks. BACKGROUND

[0002] A waterworks is a production unit with complete production equipment and capable of completing the whole process of water purification, and the water quality thereof needs to meet the standards for domestic and industrial water, and a large amount of sludge is generated in the process of water treatment of the waterworks. In order to reduce the water content of the sludge, the waterworks dewater the sludge by using a dewatering device, and the existing dewatering device usually adopts a centrifugal method to dewater the sludge, and the water content of the sludge after centrifugal dewatering is still as high as 80%, and the subsequent transportation cost of the sludge is high due to the large amount of water retention, and improvement is urgently needed. SUMMARY

[0003] The purpose of the present application is to provide a sludge dewatering and discharging device for a waterworks to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a sludge dewatering and discharging device for a waterworks, comprising a lifting bottom plate, the upper surface of the lifting bottom plate is provided with a filtering mechanism, the filtering mechanism comprises a filtering assembly for dewatering and filtering the sludge, a blocking assembly for driving the filtering assembly to rotate and adjusting the opening and closing state of the bottom opening end of the filtering assembly, and a pressurizing assembly for cooperating with the filtering assembly to compress the sludge, the pressurizing assembly is arranged at the top of the filtering assembly, and the blocking assembly is arranged at the bottom of the filtering assembly.

[0005] As a further scheme of the present application: the filtering assembly comprises a second limiting support disc, the upper surface of the second limiting support disc is provided with a plurality of filter screen pipes, the plurality of filter screen pipes are arranged in an annular array on the upper surface of the second limiting support disc, the filter screen pipes are arranged through the second limiting support disc, the filter screen pipes are fixedly connected with the second limiting support disc, and a third limiting support disc for limiting the filter screen pipes is arranged above the second limiting support disc.

[0006] As a further scheme of the present application: the filter screen pipes are arranged through the third limiting support disc, the filter screen pipes are fixedly connected with the third limiting support disc, a limiting mounting hole is formed in the middle of the upper surface of the third limiting support disc, and a storage pipe is fixedly connected with the upper surface of the third limiting support disc.

[0007] As a further scheme of the present application: the plugging assembly comprises a first limiting support disc, the first limiting support disc is fixedly connected with the lifting bottom plate, the upper surface of the first limiting support disc is fixedly connected with a driver for driving the second limiting support disc to rotate, the output end of the driver is fixedly connected with the second limiting support disc, the upper side of the first limiting support disc is provided with an annular plugging plate for plugging the bottom opening end of the filter screen pipe, and the upper surface of the first limiting support disc is provided with a plurality of first height adjusting pieces for adjusting the height of the annular plugging plate.

[0008] As a further scheme of the present application: the plugging assembly comprises a first limiting support disc, the first limiting support disc is fixedly connected with the lifting bottom plate, the upper surface of the first limiting support disc is fixedly connected with a driver for driving the second limiting support disc to rotate, the output end of the driver is fixedly connected with the second limiting support disc, the upper side of the first limiting support disc is provided with an annular plugging plate for plugging the bottom opening end of the filter screen pipe, and the upper surface of the first limiting support disc is provided with a plurality of first height adjusting pieces for adjusting the height of the annular plugging plate.

[0009] As a further scheme of the present application: the plugging assembly comprises a first limiting support disc, the first limiting support disc is fixedly connected with the lifting bottom plate, the upper surface of the first limiting support disc is fixedly connected with a driver for driving the second limiting support disc to rotate, the output end of the driver is fixedly connected with the second limiting support disc, the upper side of the first limiting support disc is provided with an annular plugging plate for plugging the bottom opening end of the filter screen pipe, and the upper surface of the first limiting support disc is provided with a plurality of first height adjusting pieces for adjusting the height of the annular plugging plate.

[0010] As a further scheme of the present application: the plugging assembly comprises a first limiting support disc, the first limiting support disc is fixedly connected with the lifting bottom plate, the upper surface of the first limiting support disc is fixedly connected with a driver for driving the second limiting support disc to rotate, the output end of the driver is fixedly connected with the second limiting support disc, the upper side of the first limiting support disc is provided with an annular plugging plate for plugging the bottom opening end of the filter screen pipe, and the upper surface of the first limiting support disc is provided with a plurality of first height adjusting pieces for adjusting the height of the annular plugging plate.

[0011] As a further scheme of the present application: the plugging assembly comprises a first limiting support disc, the first limiting support disc is fixedly connected with the lifting bottom plate, the upper surface of the first limiting support disc is fixedly connected with a driver for driving the second limiting support disc to rotate, the output end of the driver is fixedly connected with the second limiting support disc, the upper side of the first limiting support disc is provided with an annular plugging plate for plugging the bottom opening end of the filter screen pipe, and the upper surface of the first limiting support disc is provided with a plurality of first height adjusting pieces for adjusting the height of the annular plugging plate.

[0012] As a further embodiment of the present invention: a plurality of drainage pipes are provided on the bottom side of the guide lifting cylinder, the drainage pipes are provided through the side wall of the guide lifting cylinder, the drainage pipes are fixedly connected to the guide lifting cylinder, the top of the limiting support rod is fixedly connected to the guide lifting cylinder, and the bottom of the limiting support rod is fixedly connected to the lifting base plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a simple structure and is easy to use. During use, the sludge is dispersed by the cooperation of multiple structures, and then the dispersed sludge is dewatered by centrifugation and multiple extrusion dewatering. Through the cooperation of the two dewatering methods, the sludge is dewatered quickly and fully, thereby improving the sludge dewatering rate. Secondly, the present invention can automatically and quickly discharge the dewatered sludge, which significantly improves the working efficiency of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a sludge dewatering and slag discharge device for a waterworks. Figure 2 This is a schematic diagram of the filtration mechanism in a sludge dewatering and slag discharge device for a waterworks. Figure 3 This is a schematic diagram of a sealing component in a sludge dewatering and slag discharge device for a waterworks. Figure 4 This is a schematic diagram of the structure of a filter component in a sludge dewatering and slag discharge device for a waterworks. Figure 5 This is a schematic diagram of a pressurization component in a sludge dewatering and slag discharge device for a waterworks. Figure 6 An exploded view of the structure of a pressurization component in a sludge dewatering and slag discharge device for a waterworks. In the diagram: 1-Limiting support rod, 2-Guide lifting cylinder, 3-Filtering mechanism, 4-Drain pipe, 5-Lifting base plate, 31-Sealing assembly, 32-Filtering assembly, 33-Pressure boosting assembly, 310-First height adjusting component, 311-Annular sealing plate, 312-Driver, 313-First limiting support plate, 320-Second limiting support plate, 321-Filter screen, 322-Third limiting support plate, 323-Storage pipe, 324-Limiting mounting hole, 330-Conveying pipe, 331-Piston adjusting component, 332-Conveying hose, 333-Elastic hollow pressure boosting column, 334-Porous air supply support cylinder, 335-Piston plate, 336-Second height adjusting component, 337-Transmission medium, 338-Storage cylinder, 339-Adjustable pressure boosting plate, 340-Fourth limiting support plate. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection", "linking", and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting.

[0017] Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0018] Please see Figure 1 and Figure 2 This embodiment provides a sludge dewatering and slag discharge device for a waterworks, including a lifting base plate 5. A filtration mechanism 3 is provided on the upper surface of the lifting base plate 5. The filtration mechanism 3 includes a filter component 32 for dewatering and filtering the sludge, a sealing component 31 for driving the filter component 32 to rotate and for adjusting the opening and closing state of the bottom opening of the filter component 32, and a pressurizing component 33 for compressing the sludge in conjunction with the filter component 32. The pressurizing component 33 is located at the top of the filter component 32, and the sealing component 31 is located at the bottom of the filter component 32.

[0019] Please see Figure 1 , Figure 2 and Figure 4 In one embodiment, to make the use of the filter assembly 32 more reliable, preferably, the filter assembly 32 includes a second limiting support plate 320. A plurality of filter tubes 321 are disposed on the upper surface of the second limiting support plate 320. The plurality of filter tubes 321 are arranged in a circular array on the upper surface of the second limiting support plate 320. The filter tubes 321 penetrate the second limiting support plate 320 and are fixedly connected to the second limiting support plate 320. A third limiting support plate 322 is disposed above the second limiting support plate 320 to limit the filter tubes 321. The filter tubes 321 penetrate the third limiting support plate 322 and are fixedly connected to the third limiting support plate 322. A limiting installation hole 324 is formed in the middle of the upper surface of the third limiting support plate 322. A storage tube 323 is fixedly connected to the upper surface of the third limiting support plate 322.

[0020] In another embodiment, to enrich the functionality of the filter assembly 32, preferably, the filter assembly 32 includes a third limiting support plate 322. A limiting mounting hole 324 is formed in the center of the upper surface of the third limiting support plate 322. A plurality of filter mesh tubes 321 are arranged in a circular array on the third limiting support plate 322, and the filter mesh tubes 321 penetrate the third limiting support plate 322. The third limiting support plate 322 is fixedly connected to the filter mesh tubes 321, and the upper surface of the third limiting support plate 322 is fixed. A storage pipe 323 is connected to the filter screen tube 321. A limiting iron column is fixedly connected to the filter screen tube 321 below the third limiting support plate 322. The side of the limiting iron column is fixedly connected to the filter screen tube 321. An electric motor is installed on the upper surface of the limiting iron column. A striking iron ball is installed at the output end of the electric motor to strike the filter screen tube 321. The striking iron ball is connected to the electric motor through a steel wire rope. When the striking iron ball rotates, it can intermittently strike the filter screen tube 321 to clean it.

[0021] Please see Figure 1 , Figure 2 and Figure 3 In one embodiment, to make the use of the sealing component 31 more reliable, the sealing component 31 preferably includes a first limiting support plate 313, which is fixedly connected to the lifting base plate 5. A driver 312 for driving the second limiting support plate 320 to rotate is fixedly connected to the middle of the upper surface of the first limiting support plate 313. The driver 312 is an electric motor, and the output end of the driver 312 is fixedly connected to the second limiting support plate 320. An annular sealing plate 311 for sealing the bottom opening of the filter tube 321 is provided above the first limiting support plate 313. A plurality of first height adjusting members 310 for adjusting the height of the annular sealing plate 311 are provided on the upper surface of the first limiting support plate 313. The first height adjusting members 310 are hydraulic cylinders or electric telescopic rods.

[0022] In another embodiment, to make the use of the sealing component 31 more convenient, the sealing component 31 preferably includes a first limiting support plate 313, which is fixedly connected to the lifting base plate 5. A driver 312 for driving the second limiting support plate 320 to rotate is fixedly connected to the middle of the upper surface of the first limiting support plate 313. The driver 312 is a pneumatic motor, and the output end of the driver 312 is fixedly connected to the second limiting support plate 320. An annular sealing plate 311 for sealing the bottom opening of the filter tube 321 is provided above the first limiting support plate 313. Several motors are provided on the upper surface of the first limiting support plate 313. A limiting threaded rod is fixedly connected to the output end of the motor. A limiting iron pipe for adjusting the height of the annular sealing plate 311 is threaded to the top of the limiting threaded rod. The limiting iron pipe and the annular sealing plate 311 are rotatably connected by bearings.

[0023] Please see Figure 1 , Figure 2 , Figure 5 and Figure 6 In one embodiment, to make the use of the pressurizing component 33 more reliable, the pressurizing component 33 preferably includes a fourth limiting support plate 340. A storage cylinder 338 is fixedly connected to the side of the fourth limiting support plate 340 facing the third limiting support plate 322. The storage cylinder 338 is disposed through the third limiting support plate 322 via a limiting installation hole 324. The storage cylinder 338 is fixedly connected to the third limiting support plate 322. A plurality of piston adjusting components 331 are provided on the side of the fourth limiting support plate 340 facing the third limiting support plate 322. The piston adjusting components 331 are piston hydraulic cylinders. An adjustable pressurizing plate 339 is provided at the end of the piston adjusting component 331 away from the fourth limiting support plate 340 for squeezing the sludge in the filter screen tube 321.

[0024] Please see Figure 5 and Figure 6To make the use of the booster assembly 33 more convenient, in this embodiment, preferably, a plurality of conveying pipes 330 connected to the piston adjusting member 331 are provided at one end of the storage cylinder 338 near the fourth limiting support plate 340. The storage cylinder 338 is filled with a transmission medium 337, which is hydraulic oil. A piston plate 335 is slidably connected at one end of the storage cylinder 338 away from the fourth limiting support plate 340 to cooperate with the transmission medium 337 to adjust the length of the piston adjusting member 331. A second height adjusting member 336 is fixedly connected at one end of the storage cylinder 338 away from the fourth limiting support plate 340 to adjust the position of the piston plate 335 vertically. The second height adjusting member 336 is an electric telescopic rod. During use, the extension or retraction of a single second height adjusting member 336 controls the corresponding synchronous extension or retraction of multiple piston adjusting members 331.

[0025] Please see Figure 6 To further enhance the functionality of the booster assembly 33, in this embodiment, preferably, an elastic hollow booster column 333 is provided on the side of the adjustable booster plate 339 away from the fourth limiting support plate 340. The elastic hollow booster column 333 is a hollow rubber column. A porous air supply support cylinder 334, which provides limiting support for the elastic hollow booster column 333, is fixedly connected to the side of the adjustable booster plate 339. The porous air supply support cylinder 334 is a steel cylinder, and several air supply holes for supplying air to the elastic hollow booster column 333 are opened on the side wall of the steel cylinder. The porous air supply support cylinder 334 and the elastic... The hollow booster column 333 is fixedly connected. The storage cylinder 338 is provided with several conveying hoses 332 at one end near the fourth limit support plate 340. These hoses are used to cooperate with the porous air conveying support cylinder 334 to adjust the volume of the elastic hollow booster column 333. The conveying hoses 332 are equipped with solenoid valves to control the opening and closing of the conveying hoses 332. During use, the expansion of the elastic hollow booster column 333 squeezes the sludge, forming a tubular sludge column. This improves the dewatering effect of the sludge and avoids the problem of poor dewatering effect caused by high water content in the center of the sludge column.

[0026] In another embodiment, to make the use of the pressurizing component 33 more reliable, preferably, the pressurizing component 33 includes a fourth limiting support plate 340. A storage cylinder 338 is fixedly connected to the side of the fourth limiting support plate 340 facing the third limiting support plate 322. The storage cylinder 338 is disposed through the third limiting support plate 322 via a limiting installation hole 324. The storage cylinder 338 is fixedly connected to the third limiting support plate 322. A plurality of piston adjusting members 331 are provided on the side of the fourth limiting support plate 340 facing the third limiting support plate 322. The piston adjusting members 331 are piston cylinders. An adjustable pressurizing plate 339 is provided at the end of the piston adjusting member 331 away from the fourth limiting support plate 340 for squeezing the sludge in the filter tube 321. The storage cylinder 338 is fixedly connected to the third limiting support plate 322. Several conveying pipes 330 connected to piston adjusting components 331 are provided at one end of the storage cylinder 338 near the fourth limiting support plate 340. The storage cylinder 338 is filled with a transmission medium 337, which is nitrogen. A piston plate 335 is slidably connected at the end of the storage cylinder 338 away from the fourth limiting support plate 340. The piston plate 335 is used to adjust the length of the piston adjusting component 331 in conjunction with the transmission medium 337. A second height adjusting component 336 is fixedly connected at the end of the storage cylinder 338 away from the fourth limiting support plate 340. The second height adjusting component 336 is a hydraulic cylinder. During use, the extension or retraction of a single second height adjusting component 336 controls the corresponding synchronous extension or retraction of multiple piston adjusting components 331.

[0027] Please see Figure 6 To further enhance the functionality of the booster assembly 33, in this embodiment, preferably, an elastic hollow booster column 333 is provided on the side of the adjustable booster plate 339 away from the fourth limiting support plate 340. The elastic hollow booster column 333 is a hollow silicone column. A porous gas supply support cylinder 334, which provides limiting support for the elastic hollow booster column 333, is fixedly connected to the side of the adjustable booster plate 339. The porous gas supply support cylinder 334 is an iron cylinder, and several gas supply iron pipes are provided on the side wall of the iron cylinder for supplying gas to the elastic hollow booster column 333. The gas supply iron pipes penetrate the side of the iron cylinder. The system is designed with a wall-mounted gas supply pipe and a fixed iron cylinder. A porous gas supply support cylinder 334 is fixedly connected to an elastic hollow pressure boosting column 333. A storage cylinder 338 is equipped with several conveying hoses 332 near the fourth limit support plate 340. These hoses are designed to work with the porous gas supply support cylinder 334 to adjust the volume of the elastic hollow pressure boosting column 333. During use, the expansion of the elastic hollow pressure boosting column 333 compresses the sludge, forming a tubular sludge column. This improves the dewatering effect of the sludge and avoids the problem of poor dewatering effect caused by high water content in the center of the sludge column.

[0028] Please see Figure 1In one embodiment, to improve the performance of the filtration device, preferably, a guide lifting cylinder 2 is provided above the lifting base plate 5 to limit and lift the second limiting support plate 320. The guide lifting cylinder 2 is rotatably connected to the second limiting support plate 320 and rotatably connected to the storage pipe 323. An annular sealing plate 311 is provided through the bottom wall of the guide lifting cylinder 2 and is slidably connected to the guide lifting cylinder 2. A plurality of limiting support rods 1 are provided on the upper surface of the lifting base plate 5 to support and fix the guide lifting cylinder 2. A plurality of drain pipes 4 are provided on the bottom side of the guide lifting cylinder 2. The drain pipes 4 are provided through the side wall of the guide lifting cylinder 2 and are fixedly connected to the guide lifting cylinder 2. The top of the limiting support rod 1 is fixedly connected to the guide lifting cylinder 2 and the bottom of the limiting support rod 1 is fixedly connected to the lifting base plate 5.

[0029] In another embodiment, to reduce the cost of the filtration device, preferably, a guide lifting cylinder 2 is provided above the lifting base plate 5 to limit and lift the second limiting support plate 320. The guide lifting cylinder 2 is rotatably connected to the second limiting support plate 320 and rotatably connected to the storage pipe 323. An annular sealing plate 311 is provided through the bottom wall of the guide lifting cylinder 2 and is slidably connected to the guide lifting cylinder 2. A plurality of limiting support rods 1 are provided on the upper surface of the lifting base plate 5 to support and fix the guide lifting cylinder 2. A plurality of drainage holes are opened on the bottom side of the guide lifting cylinder 2. The top of the limiting support rod 1 is fixedly connected to the guide lifting cylinder 2, and the bottom of the limiting support rod 1 is fixedly connected to the lifting base plate 5.

[0030] The working principle and usage process of the present invention: In the initial state, the annular sealing plate 311 abuts against the bottom of the filter tube 321 to seal the bottom opening of the filter tube 321. In the initial state, the adjustable pressure plate 339 is located above the filter tube 321, so that the sludge put into the storage tube 323 can enter the interior of the filter tube 321 normally. When in use, the sludge (hereinafter referred to as material) that needs to be dewatered and filtered is put into the inside of the storage pipe 323. At this time, the material in the storage pipe 323 automatically fills all the filter screens 321 under the action of gravity. Then, the second height adjustment component 336 is extended. At this time, all the piston adjustment components 331 are extended synchronously, so that the adjustable pressure plate 339 moves down and inserts into the top of the filter screen 321. Then, the filter assembly 32 and the pressurizing assembly 33 are driven to rotate by the driver 312 (the pressurizing assembly 33 is stationary relative to the filter assembly 32). At this time, the filter screen tube 321 rotates to centrifuge and dehydrate the material. At the same time, the second height adjustment component 336 is controlled to gradually extend. At this time, the adjustable pressurizing plate 339 gradually moves down to squeeze the material. Meanwhile, the elastic hollow pressurizing columns 333 expand to further squeeze the material. Through the double squeezing of the material, the material is quickly dehydrated. And through the cooperation of the double squeezing, the material becomes a hollow tube, reducing the material thickness and improving the dehydration effect. Combined with the centrifugal dehydration of the material, the material is quickly and fully dehydrated. After the material is dewatered, the drive of the driver 312 is stopped, and then the first height adjustment component 310 is controlled to retract so that the annular sealing plate 311 moves down to release the blockage of the bottom opening of the filter tube 321. Then, the dewatered material is pushed out by controlling the adjustable pressure plate 339 to move down further, thereby realizing the automatic discharge of the material. By combining multiple structures, the sludge is dewatered by centrifugation and compression. The combination of these two dewatering methods achieves rapid and thorough dewatering of the sludge, thereby improving the dewatering rate. Furthermore, this invention enables automated and rapid discharge of the dewatered sludge, significantly improving the working efficiency of the filtration device. Moreover, the invention has a simple structure, is easy to use, and is worthy of promotion and application.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sludge dewatering and slag discharge device for a waterworks, comprising a supporting base plate, characterized in that: The upper surface of the lifting base plate is provided with a filtration mechanism, which includes a filtration component for dewatering and filtering sludge, a sealing component for driving the filtration component to rotate and for adjusting the opening and closing state of the bottom opening of the filtration component, and a pressurizing component for compressing sludge in conjunction with the filtration component. The pressurizing component is located at the top of the filtration component, and the sealing component is located at the bottom of the filtration component.

2. The sludge dewatering and slag discharge device for waterworks according to claim 1, characterized in that: The filter assembly includes a second limiting support plate, on the upper surface of which are provided a plurality of filter tubes arranged in a circular array on the upper surface of the second limiting support plate. The filter tubes pass through the second limiting support plate and are fixedly connected to the second limiting support plate. A third limiting support plate is provided above the second limiting support plate to limit the filter tubes.

3. The sludge dewatering and slag discharge device for waterworks according to claim 2, characterized in that: The filter screen is installed through the third limiting support plate and is fixedly connected to the third limiting support plate. A limiting installation hole is opened in the middle of the upper surface of the third limiting support plate, and a storage pipe is fixedly connected to the upper surface of the third limiting support plate.

4. The sludge dewatering and slag discharge device for waterworks according to claim 3, characterized in that: The sealing assembly includes a first limiting support plate, which is fixedly connected to the supporting base plate. A driver for driving a second limiting support plate to rotate is fixedly connected to the middle of the upper surface of the first limiting support plate. The output end of the driver is fixedly connected to the second limiting support plate. An annular sealing plate for sealing the bottom opening of the filter tube is provided above the first limiting support plate. Several first height adjusting components for adjusting the height of the annular sealing plate are provided on the upper surface of the first limiting support plate.

5. The sludge dewatering and slag discharge device for waterworks according to claim 4, characterized in that: The pressurization assembly includes a fourth limiting support plate. A storage cylinder is fixedly connected to the side of the fourth limiting support plate facing the third limiting support plate. The storage cylinder passes through the third limiting support plate through a limiting installation hole and is fixedly connected to the third limiting support plate. Several piston adjustment components are provided on the side of the fourth limiting support plate facing the third limiting support plate. An adjustable pressurization plate is provided at the end of the piston adjustment component away from the fourth limiting support plate to squeeze the sludge in the filter screen.

6. The sludge dewatering and slag discharge device for waterworks according to claim 5, characterized in that: The storage cylinder is provided with several conveying pipes connected to the piston adjusting component at one end near the fourth limiting support plate. The storage cylinder is filled with a transmission medium. The storage cylinder is sealed and slidably connected to a piston plate at the other end away from the fourth limiting support plate. The piston plate is used to adjust the length of the piston adjusting component in conjunction with the transmission medium. The storage cylinder is fixedly connected to a second height adjusting component at the other end away from the fourth limiting support plate. The piston plate is used to adjust its position vertically.

7. The sludge dewatering and slag discharge device for waterworks according to claim 6, characterized in that: An elastic hollow pressure column is provided on the side of the adjustable pressure plate away from the fourth limiting support plate. A porous gas supply support cylinder is fixedly connected to the side of the adjustable pressure plate to provide limiting support for the elastic hollow pressure column. The porous gas supply support cylinder is fixedly connected to the elastic hollow pressure column. Several material supply hoses are provided at the end of the storage cylinder near the fourth limiting support plate to cooperate with the porous gas supply support cylinder to adjust the volume of the elastic hollow pressure column.

8. The sludge dewatering and slag discharge device for waterworks according to claim 7, characterized in that: Above the lifting base plate is a guide lifting cylinder for limiting and lifting the second limiting support plate. The guide lifting cylinder is rotatably connected to the second limiting support plate and rotatably connected to the storage pipe. An annular sealing plate is installed through the bottom wall of the guide lifting cylinder and is slidably connected to the guide lifting cylinder. The upper surface of the lifting base plate is provided with several limiting support rods for supporting and fixing the guide lifting cylinder.

9. The sludge dewatering and slag discharge device for waterworks according to claim 8, characterized in that: The bottom side of the guide lifting cylinder is provided with several drainage pipes, which penetrate the side wall of the guide lifting cylinder and are fixedly connected to the guide lifting cylinder. The top of the limiting support rod is fixedly connected to the guide lifting cylinder, and the bottom of the limiting support rod is fixedly connected to the lifting base plate.

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