Municipal sludge dewatering filtrate treatment device

Abstract

The municipal sludge dewatering filtrate treatment device comprises a first box, a second box, a water conveying pipe, a top cover and a rotating shaft, the lower portion of the right side wall of the first box is fixedly connected with the second box, a top plate is detachably installed at the top end of the first box through a hinge, a filling opening is formed in the top end of the top plate, and a centrifugal bin is formed in the upper portion of the inner side of the first box; a rotating shaft is fixedly mounted at the top end of the rotating motor; a chassis is movably connected to the top end of the rotating shaft; a side filter cartridge is fixedly connected to the edge of the top end of the chassis; a stirring pool is movably placed on the inner side of the second box; according to the device, filtrate is centrifuged and precipitated through the rotating motor and the stirring motor, so that pollutants in the filtrate are separated out, the pollutants are conveniently cleaned, and the treatment efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of sludge dewatering filtrate treatment, and specifically to a municipal sludge dewatering filtrate treatment device. Background Art

[0002] The filtrate from municipal sludge dewatering usually contains a variety of pollutants, such as heavy metals, organic matter, inorganic matter, etc. These pollutants may cause harm to the environment and human health, and therefore need to be properly treated and disposed of. The current method for treating the filtrate is usually to filter it with a filter mesh, which cannot completely filter the filtrate and has low filtration efficiency.

[0003] Patent No. 202022917744.3 discloses a municipal sludge dewatering filtrate pretreatment device, including a filter screen, a sealing cover, an input pump, a fixing block, a filter plate, a support rod, a filter layer and a controller, etc. When in use, the sealing cover and the filter screen are fixed to a certain extent by bolts, and the filter screen can be cleaned or replaced by removing the bolts to prevent blockage caused by excessive debris. The filter plate can filter the filtrate again and clean the filtrate again through the filter layer. The upper end shell and the lower end shell are connected by a lock body, which is convenient for disassembly, thereby facilitating regular cleaning of the internal filter plate and filter layer. The use of the pretreatment device makes the pretreatment of the filtrate cleaner and faster.

[0004] However, in use, there are the following defects:

[0005] Since the device uses a filter screen and a filter layer to pre-filter the filtrate, on the one hand, the filtrate cannot be cleaned and needs to be transferred to a new device for processing. During this process, filtrate will remain on the inner wall of the device. On the other hand, when cleaning the clogged filter screen, the device needs to be disassembled and opened before it can be taken out for cleaning, which is inefficient. Utility Model Content

[0006] The purpose of this application is to provide a municipal sludge dewatering filtrate treatment device, which solves the problem raised in the background technology that since the device uses a filter mesh and a filter layer to filter the filtrate for pre-treatment, on the one hand, the filtrate cannot be treated cleanly and the filtrate needs to be transferred to a new equipment for treatment. During this process, filtrate will remain on the inner wall of the device. On the other hand, when cleaning the clogged filter mesh, the device needs to be disassembled and opened before it can be taken out for cleaning, which is inefficient.

[0007] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a municipal sludge dewatering filtrate treatment device, comprising box No. 1, box No. 2, a water pipe, a top cover and a rotating shaft, box No. 2 is fixedly connected to the lower right side wall of box No. 1, a top plate is detachably installed on the top of box No. 1 through a hinge, and a filling port is provided on the top of the top plate, a centrifugal bin is provided on the upper inner side of box No. 1, a rotating motor is embedded in the bottom of the centrifugal bin, a rotating shaft is fixedly installed on the top of the rotating motor, the top of the rotating shaft is movably connected to a chassis, the top edge of the chassis is fixedly connected to a side filter cartridge, a stirring tank is movably placed on the inner side of box No. 2, the top of box No. 2 is movably connected to the top cover, and a stirring motor is fixedly installed on the top of the top cover.

[0008] In this technical solution, the filtrate is first poured into the centrifugal bin inside the No. 1 box through the filling port. With the connection of the power interface, the rotating motor starts and drives the rotating shaft to rotate together. Then the bottom plate and the side filter cartridge are driven to rotate together, and the internal filtrate is rotated and centrifuged. The impurities and dirt in the filtrate will be thrown onto the side filter cartridge but cannot pass through. The remaining liquid will pass through the side filter cartridge and enter the centrifugal bin, and then flow into the lower leakage port and follow the pipeline into the mixing tank of the No. 2 box. The impurities and dirt centrifuged can be collected and cleaned through the top plate, loose-leaf, bottom plate and side filter cartridge. After the centrifugation is completed, the top plate is opened, the bottom plate and the side filter cartridge can be taken out, and then the impurities obtained by centrifugation can be cleaned. Since the impurities are located at the bottom and inside the filter cartridge, the difficulty of cleaning is reduced, and the treatment efficiency of the filtrate is improved. , water tank and water pump, can be used to clean the centrifugal bin. After the water pump is started, the clean water in the water tank is pumped into the annular water pipe through the water pipe, and the nozzle at the bottom of the annular water pipe will spray clean water into the centrifugal bin 360 degrees, thereby flushing the centrifugal bin clean. No manual cleaning is required, which improves the cleaning efficiency of the device. After the centrifuged filtrate reaches the stirring tank, the filtrate can be secondary precipitated through the top cover, stirring motor, stirring rod and flocculant inlet. After starting the stirring motor, the stirring motor drives the stirring rod to stir the filtrate in the stirring tank, and then the flocculant is added through the flocculant inlet. During the stirring process, impurities in the filtrate will be precipitated, and the impurities will be blocked by the bottom filter screen. The treated filtrate will leave from the discharge port. The stirring tank can be cleaned by opening the side door and then taking it out to avoid blockage, thereby improving the device's treatment efficiency of the filtrate.

[0009] As an optional solution of the technical solution of the present application, a stirring rod is fixedly installed at the bottom of the top cover, the bottom of the stirring rod is located on the inner side of the stirring tank, a bottom filter is fixedly installed at the bottom of the stirring tank, an electric valve is fixedly installed at the bottom of the bottom filter, and a bottom filter is detachably installed above the electric valve.

[0010] As an optional solution of the technical solution of the present application, handles are fixedly installed on both sides of the top of the top cover, and a flocculant inlet is opened at the top of the top cover on the side of the stirring motor.

[0011] As an optional solution of the technical solution of the present application, the bottom of the electric valve is connected to the discharge outlet, and the right end of the discharge outlet is located below the right side wall of the second box.

[0012] As an optional solution of the technical solution of this application, lower leakage ports are opened on both sides of the bottom of the centrifugal bin, the bottom of the lower leakage port is connected to the pipeline, and the right end of the pipeline passes through the right side wall of box No. 1 and is located above the mixing tank.

[0013] As an optional solution of the technical solution of the present application, a bottom bin is opened under the No. 1 box, a water tank is movably placed inside the bottom bin, a water pump is movably installed inside the water tank, and the water pump is movably connected to and communicated with one end of the water pipe.

[0014] As an optional solution to the technical solution of the present application, the left and right inner walls of the centrifugal bin are fixedly connected with support rods, the other ends of the support rods are fixedly connected to the two sides of the annular water pipe, a number of nozzles are evenly opened at the bottom of the annular water pipe, and the other end of the water pipe passes through the left side wall of box No. 1 and is connected to the annular water pipe.

[0015] As an optional solution of the technical solution of the present application, a bottom door is detachably installed below the main side wall of box No. 1, and a side door is detachably installed above the right side wall of box No. 2.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This application can collect and clean the impurities and dirt centrifuged through the top plate, loose-leaf, bottom plate and side filter cartridges. After centrifugation is completed, the top plate is opened, the bottom plate and side filter cartridges can be taken out, and then the impurities obtained by centrifugation can be cleaned. Since the impurities are all located at the bottom and inside the filter cartridge, the difficulty of cleaning is reduced and the treatment efficiency of the filtrate is improved.

[0018] 2. This application uses an annular water pipe, a water pipe, a water tank and a water pump to clean the centrifugal chamber. After the water pump is started, the clean water in the water tank is pumped into the annular water pipe through the water pipe. The nozzle at the bottom of the annular water pipe will spray clean water into the centrifugal chamber at a 360-degree angle, thereby flushing the centrifugal chamber clean. No manual cleaning is required, which improves the cleaning efficiency of the device.

[0019] 3. The present application can carry out secondary precipitation of the filtrate through the top cover, stirring motor, stirring rod and flocculant inlet. After starting the stirring motor, the stirring motor drives the stirring rod to stir the filtrate in the stirring tank, and then the flocculant is added through the flocculant inlet. During the stirring process, the impurities in the filtrate will be precipitated, and the impurities will be blocked by the bottom filter. The treated filtrate will leave from the discharge port. The stirring tank can be opened by opening the side door and then taken out for cleaning to avoid blockage, thereby improving the device's treatment efficiency of the filtrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a municipal sludge dewatering filtrate treatment device for this application;

[0022] Figure 2 This is a schematic cross-sectional view of a municipal sludge dewatering filtrate treatment device according to the present application;

[0023] Figure 3 This is a schematic diagram of the annular water pipe structure of a municipal sludge dewatering filtrate treatment device of the present application;

[0024] Figure 4 This is a partial enlarged view of point A of a municipal sludge dewatering filtrate treatment device in this application.

[0025] In the figure: 1. Box No. 1; 2. Box No. 2; 3. Top plate; 301. Loose-leaf; 4. Filling port; 5. Centrifugal chamber; 6. Chassis; 601. Rotating shaft; 602. Rotating motor; 7. Side filter cartridge; 8. Lower drain port; 801. Pipeline; 9. Top cover; 10. Handle; 11. Stirring motor; 111. Stirring rod; 12. Flocculant inlet; 13. Stirring tank; 131. Side door; 14. Bottom filter; 15. Discharge port; 16. Bottom chamber; 161. Bottom door; 17. Water tank; 18. Water pump; 19. Water pipe; 20. Power interface; 21. Annular water pipe; 22. Nozzle; 23. Support rod. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, they are further elaborated below in conjunction with specific implementation methods.

[0027] like Figure 1As shown, a municipal sludge dewatering filtrate treatment device includes box No. 1 1, box No. 2 2, a water pipe 19, a top cover 9 and a rotating shaft 601, and is characterized in that: box No. 2 2 is fixedly connected to the lower right side wall of box No. 1, and a top plate 3 is detachably installed on the top of box No. 1 through a loose-leaf 301, and a filling port 4 is provided at the top of the top plate 3.

[0028] like Figure 1 As shown, a stirring pool 13 is movably placed inside box No. 2, a top cover 9 is movably connected to the top of box No. 2, and a stirring motor 11 is fixedly installed on the top of the top cover 9. The top cover 9 can be lifted and the stirring rod 111 can be pulled out for cleaning.

[0029] like Figure 1 As shown, a bottom door 161 is detachably installed below the front side wall of box No. 1, and a side door 131 is detachably installed above the right side wall of box No. 2. When the bottom door 161 is opened, water can be added to the water tank 17, and when the side door 131 is opened, the mixing tank 13 can be taken out to clean the sediment.

[0030] like Figure 2 As shown, a stirring rod 111 is fixedly installed at the bottom of the top cover 9, and the bottom of the stirring rod 111 is located on the inner side of the stirring tank 13. A bottom filter screen 14 is fixedly installed at the bottom of the stirring tank 13, and an electric valve 141 is fixedly installed at the bottom of the bottom filter screen 14. The bottom filter screen 14 is detachably installed above the electric valve 141. Handles 10 are fixedly installed on both sides of the top of the top cover 9. When the electric valve 141 is opened, the treated filtrate can flow out from the discharge port 15.

[0031] like Figure 2 As shown, a flocculant inlet 12 is provided at the top of the top cover 9 on one side of the stirring motor 11 , and the bottom of the electric valve 141 is connected to the discharge port 15 , and the right end of the discharge port 15 is located below the right side wall of the No. 2 box 2 .

[0032] like Figure 2 As shown, lower leakage ports 8 are provided on both sides of the bottom of the centrifugal bin 5 , the bottom of the lower leakage ports 8 is connected to the pipe 801 , and the right end of the pipe 801 passes through the right side wall of the No. 1 box 1 and is located above the stirring tank 13 .

[0033] like Figure 2 As shown, a bottom bin 16 is provided at the bottom of box No. 1, and a water tank 17 is movably placed inside the bottom bin 16. A water pump 18 is movably installed inside the water tank 17. The water pump 18 is movably connected to and communicated with one end of a water pipe 19. The water pipe 19 first passes through the side wall of box No. 1 from the bottom bin 16 and then passes through the top of the side wall of box No. 1 and communicates with the annular water pipe 21.

[0034] like Figure 2 and Figure 3As shown, the left and right inner walls of the centrifugal bin 5 are fixedly connected with support rods 23, the other ends of the support rods 23 are fixedly connected to the two sides of the annular water pipe 21, and a number of nozzles 22 are evenly opened at the bottom of the annular water pipe 21. The other end of the water pipe 19 passes through the left side wall of box No. 1 and is connected to the annular water pipe 21. The annular water pipe 21 can flush the centrifugal bin 5.

[0035] like Figure 2 and Figure 4 As shown, a centrifugal chamber 5 is opened on the upper inner side of box No. 1, and a rotating motor 602 is embedded in the bottom of the centrifugal chamber 5. A rotating shaft 601 is fixedly installed on the top of the rotating motor 602. The top of the rotating shaft 601 is movably connected to the chassis 6, and the top edge of the chassis 6 is fixedly connected to the side filter cartridge 7.

[0036] In actual use, first pour the filtrate into the centrifugal chamber 5 inside the No. 1 box 1 through the filling port 4. With the connection of the power interface 20, the rotating motor 602 starts to drive the rotating shaft 601 to rotate together, and then the bottom plate 6 and the side filter cartridge 7 are driven to rotate together, and the internal filtrate is rotated and centrifuged. The impurities and dirt in the filtrate will be thrown onto the side filter cartridge 7 but cannot pass through. The remaining liquid will pass through the side filter cartridge 7 and then enter the centrifugal chamber 5, and then flow into the lower leakage port 8 along the pipe 801 into the stirring tank 13 of the No. 2 box 2. The impurities and dirt centrifuged can be collected and cleaned through the top plate 3, the loose-leaf 301, the bottom plate 6 and the side filter cartridge 7. After centrifugation is completed, the top plate 3 is opened, the bottom plate 6 and the side filter cartridge 7 can be taken out, and then the impurities obtained by centrifugation can be cleaned. Since the impurities are all located at the bottom and inside the filter cartridge, the difficulty of cleaning is reduced, and the treatment efficiency of the filtrate is improved. The pump 18 can be used to clean the centrifugal bin 5. After the water pump 18 is started, the clean water in the water tank 17 is pumped into the annular water pipe 21 through the water pipe 19. The nozzle 22 at the bottom of the annular water pipe 21 will spray clean water into the centrifugal bin 5 at a 360-degree angle, thereby flushing the centrifugal bin 5. No manual cleaning is required, which improves the cleaning efficiency of the device. After the centrifuged filtrate reaches the stirring tank 13, it can be subjected to secondary precipitation through the top cover 9, the stirring motor 11, the stirring rod 111 and the flocculant inlet 12. After starting the stirring motor 11, the stirring motor 11 drives the stirring rod 111 to stir the filtrate in the stirring tank 13, and then the flocculant is added through the flocculant inlet 12. During the stirring process, impurities in the filtrate will be precipitated, and the impurities will be blocked by the bottom filter 14. The treated filtrate will leave from the discharge port 15. The stirring tank 13 can be taken out for cleaning by opening the side door 131 to avoid blockage, thereby improving the device's treatment efficiency of the filtrate.

Claims

1. A municipal sludge dewatering filtrate treatment device, comprising a first tank (1), a second tank (2), a water pipe (19), a top cover (9) and a rotating shaft (601), characterized in that: The No. 2 box (2) is fixedly connected to the lower right side wall of the No. 1 box (1); the top of the No. 1 box (1) is detachably mounted with a top plate (3) through a hinge (301), and a filling port (4) is provided at the top of the top plate (3); a centrifugal bin (5) is provided on the upper inner side of the No. 1 box (1); a rotating motor (602) is embedded and installed at the bottom of the centrifugal bin (5); a rotating shaft (601) is fixedly installed at the top of the rotating motor (602); a bottom of the rotating shaft (601) is movably connected to a chassis (6); a side filter cartridge (7) is fixedly connected to the top edge of the chassis (6); a stirring tank (13) is movably placed on the inner side of the No. 2 box (2); a top cover (9) is movably connected to the top of the No. 2 box (2), and a stirring motor (11) is fixedly installed at the top of the top cover (9).

2. A municipal sludge dewatering filtrate treatment device according to claim 1, characterized in that: A stirring rod (111) is fixedly mounted on the bottom of the top cover (9), the bottom of the stirring rod (111) is located on the inner side of the stirring tank (13), a bottom filter (14) is fixedly mounted on the bottom of the stirring tank (13), an electric valve (141) is fixedly mounted on the bottom of the bottom filter (14), and the bottom filter (14) is detachably mounted above the electric valve (141).

3. A municipal sludge dewatering filtrate treatment device according to claim 1, characterized in that: Handles (10) are fixedly mounted on both sides of the top of the top cover (9), and a flocculant inlet (12) is provided at the top of the top cover (9) on one side of the stirring motor (11).

4. A municipal sludge dewatering filtrate treatment device according to claim 2, characterized in that: The bottom of the electric valve (141) is connected to the discharge port (15), and the right end of the discharge port (15) is located below the right side wall of the second box (2).

5. A municipal sludge dewatering filtrate treatment device according to claim 1, characterized in that: The bottom of the centrifugal bin (5) is provided with lower leakage ports (8) on both sides, the bottom of the lower leakage port (8) is connected to the pipeline (801), and the right end of the pipeline (801) passes through the right side wall of the first box (1) and is located above the stirring tank (13).

6. A municipal sludge dewatering filtrate treatment device according to claim 1, characterized in that: A bottom bin (16) is provided below the first box (1), a water tank (17) is movably placed inside the bottom bin (16), a water pump (18) is movably installed inside the water tank (17), and the water pump (18) is movably connected to and communicated with one end of a water delivery pipe (19).

7. A municipal sludge dewatering filtrate treatment device according to claim 1, characterized in that: The left and right inner walls of the centrifugal bin (5) are fixedly connected with support rods (23), the other ends of the support rods (23) are fixedly connected with the two sides of the annular water pipe (21), a plurality of nozzles (22) are evenly arranged at the bottom of the annular water pipe (21), and the other end of the water pipe (19) passes through the left side wall of the first box (1) and is connected with the annular water pipe (21).

8. A municipal sludge dewatering filtrate treatment device according to claim 1, characterized in that: A bottom door (161) is detachably mounted below the front side wall of the No. 1 box (1), and a side door (131) is detachably mounted above the right side wall of the No. 2 box (2).

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