Sludge dewatering device for sewage treatment

Abstract

The utility model discloses a sludge dewatering device for sewage treatment, which comprises a device water collecting shell, a stable support frame is fixedly mounted at the bottom of the device water collecting shell, a drain pipe is fixedly connected to the middle of the bottom of the device water collecting shell, and a rotatable inner cylinder is mounted in the device water collecting shell. A detachable filter cylinder is mounted in the inner cylinder, a motor in transmission connection with the inner cylinder is mounted on the surface of the water collecting shell of the device, and two lifting blocks are symmetrically mounted on the upper portion of the surface of the filter cylinder; the centrifugal dewatering structure of the sludge dewatering device can be effectively disassembled and assembled, so that the filtering inner cylinder can be effectively disassembled and replaced after filtering is completed, dewatered sludge can be conveniently cleaned and discharged, and the sludge dewatering efficiency and speed are effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of sludge dewatering technology, specifically a sludge dewatering device for sewage treatment. Background Technology

[0002] The main methods for treating sludge include concentration, conditioning, dewatering, stabilization, drying, or incineration. Currently, most sludge dewatering methods involve centrifugal dewatering. However, centrifugal dewatering often causes the dewatered sludge to stick to the inner wall of the centrifugal dewatering device, and it is also difficult to discharge the sludge from the device, thus affecting the efficiency and speed of sludge dewatering. Therefore, improvements are needed to address these issues. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a sludge dewatering device for sewage treatment, comprising a device water collection shell, a stable support frame fixedly installed at the bottom of the device water collection shell, a drain pipe fixedly connected to the middle of the bottom of the device water collection shell, a rotatable inner cylinder installed inside the device water collection shell, a detachable filter cylinder installed inside the inner cylinder, a motor connected to the inner cylinder for transmission installed on the surface of the device water collection shell, and two lifting blocks symmetrically installed on the upper part of the surface of the filter cylinder.

[0004] Preferably, the water collecting shell of the device has two grooves inside, and two rollers are installed at equal intervals on the surface of the inner cylinder. The rollers are located inside the grooves. Fixing blocks are fixedly installed at equal intervals in a ring inside the water collecting shell. The surface of each fixing block is equipped with balls that contact the surface of the inner cylinder. A gear ring is fixedly installed on the upper part of the surface of the inner cylinder. A gear that meshes with the gear ring is fixedly installed at the output end of the motor, thereby effectively driving the inner cylinder and the filter cylinder to rotate.

[0005] Preferably, the filter cylinder has a first groove equidistantly arranged on its surface, and a first filter screen is installed inside the filter cylinder and between the first grooves. The filter cylinder also has a second groove equidistantly arranged on its surface, and a second filter screen is installed on the top of each second groove, thereby effectively dewatering the sludge.

[0006] Preferably, the inner cylinder has four vertical sliding grooves equidistantly arranged in an annular shape inside, and four sliding mounting blocks are fixedly installed equidistantly in an annular shape on the lower part of the filter cylinder surface. The four sliding mounting blocks are slidably installed inside the four vertical sliding grooves respectively. Limiting slots are provided on the upper part of each of the four vertical sliding grooves. Two lifting blocks are slidably installed inside two of the opposite vertical sliding grooves, and the lifting blocks are aligned with the limiting slots.

[0007] Preferably, each of the two lifting blocks has a horizontal groove at one end, and a right-angled trapezoidal block is movably inserted into the interior of each horizontal groove. The two right-angled trapezoidal blocks are movably inserted into the interior of two limiting slots. A spring is fixedly connected between one end of the right-angled trapezoidal block and the interior of the horizontal groove. A pulley is installed inside each horizontal groove. A cable is fixedly connected to one end of each right-angled trapezoidal block. An n-shaped block is fixedly installed on the top of each of the two lifting blocks. An inverted T-shaped block is movably inserted into the middle of each of the two n-shaped blocks. One end of the cable passes through the spring, through the pulley, and is fixedly connected to the bottom of the inverted T-shaped block. A lifting ring is fixedly connected to the top of each inverted T-shaped block. This allows for effective lifting and disassembly of the filter cartridge to clean the sludge inside.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up a water collection shell, a stable support frame, a drain pipe, an inner cylinder, a filter cylinder, a motor, and a lifting block, the centrifugal dewatering structure of this sludge dewatering device can be effectively disassembled and assembled. After filtration, the filter inner cylinder can be effectively disassembled and replaced, facilitating the cleaning and discharge of dewatered sludge. This effectively improves the efficiency and speed of sludge dewatering. At the same time, the sludge dewatering device has a simple structural design, is easy to disassemble and assemble, and is stable and reliable in dewatering use. Its performance can meet the needs of sewage and sludge treatment. Attached Figure Description

[0009] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0010] In the attached diagram:

[0011] Figure 1 This is a cross-sectional structural diagram of the sludge dewatering device for sewage treatment according to this utility model;

[0012] Figure 2 This utility model Figure 1 Schematic diagram of local structure Figure 1 ;

[0013] Figure 3 This utility model Figure 1 Schematic diagram of local structure Figure 2 ;

[0014] Figure 4 This utility model Figure 3 A partial structural diagram;

[0015] In the diagram: 1. Water collection shell; 2. Stable support frame; 3. Drain pipe; 4. Inner cylinder; 5. Filter cylinder; 6. Motor; 7. Lifting block; 8. Ring groove; 9. Roller; 10. Fixing block; 11. Ball bearing; 12. Gear ring; 13. Gear; 14. Vertical sliding groove; 15. Sliding mounting block; 16. Limiting slot; 17. Horizontal groove; 18. Right-angled trapezoidal insert; 19. Spring; 20. Pulley; 21. Cable; 22. N-shaped block; 23. Inverted T-shaped block; 24. Lifting ring; 25. First slot; 26. First filter screen; 27. Second slot; 28. Second filter screen. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Depend on Figures 1 to 4 The present invention includes a water collection housing 1, a stable support frame 2 fixedly installed at the bottom of the water collection housing 1, a drain pipe 3 fixedly connected to the middle of the bottom of the water collection housing 1, a rotatable inner cylinder 4 installed inside the water collection housing 1, a detachable filter cylinder 5 installed inside the inner cylinder 4, a motor 6 connected to the inner cylinder 4 for transmission on the surface of the water collection housing 1, and two lifting blocks 7 symmetrically installed on the upper part of the surface of the filter cylinder 5. The surface of the filter cylinder 5 has first slots 25 evenly spaced in a ring, a first filter screen 26 installed inside the filter cylinder 5 and between the first slots 25, and a second slot 27 evenly spaced in a ring on the filter cylinder 5, with a second filter screen 28 installed at the top of each second slot 27, thereby effectively dewatering the sludge. The rotating filter cylinder 5 causes the water in the sludge to be filtered and separated through the first filter screen 26 and the second filter screen 28, and the separated water is collected at the bottom of the water collection housing 1 and discharged through the drain pipe 3.

[0018] The device has two grooves 8 inside the water collection shell 1. Two rollers 9 are installed at equal intervals on the surface of the inner cylinder 4. The rollers 9 are located inside the grooves 8. Fixing blocks 10 are fixedly installed at equal intervals in an annular shape inside the water collection shell 1. The surface of the fixing blocks 10 is equipped with balls 11 that contact the surface of the inner cylinder 4. A gear ring 12 is fixedly installed on the upper part of the surface of the inner cylinder 4. A gear 13 that meshes with the gear ring 12 is fixedly installed at the output end of the motor 6, so as to effectively drive the inner cylinder 4 and the filter cylinder 5 to rotate.

[0019] By starting the motor 6, the gear 13 rotates, which in turn drives the gear ring 12 to rotate the inner cylinder 4. The rotation of the inner cylinder 4 drives the roller 9 to rotate inside the ring groove 8. At the same time, the contact between the ball bearing 11 and the inner cylinder 4 causes the inner cylinder 4 to rotate stably. The rotation of the inner cylinder 4 drives the filter cylinder 5 to rotate. Then, the sludge is added into the rotating filter cylinder 5 for centrifugal separation and dewatering.

[0020] The inner cylinder 4 has four vertical sliding grooves 14 evenly spaced in a ring. Four sliding mounting blocks 15 are fixedly installed at equal intervals in a ring on the lower part of the filter cylinder 5 surface. The four sliding mounting blocks 15 are slidably installed inside the four vertical sliding grooves 14. Each of the four vertical sliding grooves 14 has a limit slot 16 at its upper part. Two lifting blocks 7 are slidably installed inside two of the opposing vertical sliding grooves 14, with the lifting blocks 7 aligned with the limit slots 16. One end of each lifting block 7 has a horizontal groove 17. A right-angled trapezoidal insert 18 is movably inserted into each of the two horizontal grooves 17. The two right-angled trapezoidal inserts 18 are movably inserted into the two limit slots 16. Inside the groove 16, a spring 19 is fixedly connected between one end of the right-angled trapezoidal insert 18 and the inside of the horizontal groove 17. Pulleys 20 are installed inside the horizontal groove 17. A cable 21 is fixedly connected to one end of the right-angled trapezoidal insert 18. An n-shaped block 22 is fixedly installed on the top of the two lifting blocks 7. An inverted T-shaped block 23 is movably inserted into the middle of the two n-shaped blocks 22. One end of the cable 21 passes through the spring 19, passes through the pulley 20, and is fixedly connected to the bottom of the inverted T-shaped block 23. A lifting ring 24 is fixedly connected to the top of the inverted T-shaped block 23. Thus, the filter cylinder 5 can be effectively lifted and disassembled to clean the sludge inside.

[0021] When it is necessary to clean the dewatered sludge inside the filter cartridge 5, the hook on the external crane is connected to the two lifting rings 24. The external crane lifts and moves the lifting rings 24 upward, which in turn moves the inverted T-shaped block 23 upward. The upward movement of the inverted T-shaped block 23 pulls the cable 21 upward, which in turn moves the right-angled trapezoidal insert 18, causing the right-angled trapezoidal insert 18 to be removed from the inside of the limiting slot 16 and compress the spring 19. Then, the inverted T-shaped block 23 contacts the n-shaped block 22, which causes the n-shaped block 22 to pull the lifting block 7 upward. The upward movement of the lifting block 7 moves the filter cartridge 5 upward, causing the lifting block 7 and the sliding mounting block 15 to move upward and out of the inside of the vertical sliding groove 14. Finally, the filter cartridge 5 is lifted out of the inside of the inner cylinder 4, making it convenient to clean the dewatered sludge inside the filter cartridge 5.

[0022] The centrifugal dewatering structure of this sludge dewatering device allows for effective disassembly and assembly, enabling the filter inner cylinder to be easily disassembled and replaced after filtration. This facilitates the cleaning and discharge of the dewatered sludge, thereby effectively improving the efficiency and speed of sludge dewatering. At the same time, the sludge dewatering device has a simple structural design, is easy to disassemble and assemble, and is stable and reliable in dewatering operation. Its performance can meet the needs of sewage and sludge treatment.

Claims

1. A sludge dewatering device for sewage treatment, comprising a device water collection shell (1), characterized in that: A stable support frame (2) is fixedly installed at the bottom of the water collection shell (1) of the device. A drain pipe (3) is fixedly connected to the middle of the bottom of the water collection shell (1). A rotatable inner cylinder (4) is installed inside the water collection shell (1). A detachable filter cylinder (5) is installed inside the inner cylinder (4). A motor (6) that is connected to the inner cylinder (4) is installed on the surface of the water collection shell (1). Two lifting blocks (7) are symmetrically installed on the upper part of the surface of the filter cylinder (5).

2. The sludge dewatering device for sewage treatment according to claim 1, characterized in that: The device has two grooves (8) inside the water collection shell (1). Two rollers (9) are installed at equal intervals on the surface of the inner cylinder (4). The rollers (9) are located inside the grooves (8). Fixing blocks (10) are fixedly installed at equal intervals in a ring inside the water collection shell (1). The surface of the fixing blocks (10) is equipped with balls (11) that contact the surface of the inner cylinder (4). A gear ring (12) is fixedly installed on the upper part of the surface of the inner cylinder (4). A gear (13) that meshes with the gear ring (12) is fixedly installed at the output end of the motor (6).

3. The sludge dewatering device for sewage treatment according to claim 1, characterized in that: The filter cylinder (5) has a first groove (25) equidistantly arranged on its surface. A first filter screen (26) is installed inside the filter cylinder (5) and between the first groove (25). A second groove (27) is equidistantly arranged on the filter cylinder (5). A second filter screen (28) is installed on the top of each second groove (27).

4. The sludge dewatering device for sewage treatment according to claim 1, characterized in that: The inner cylinder (4) has four vertical sliding grooves (14) equidistantly arranged in an annular shape inside. The lower part of the filter cylinder (5) is fixedly installed with four sliding mounting blocks (15) equidistantly arranged in an annular shape. The four sliding mounting blocks (15) are respectively slidably installed inside the four vertical sliding grooves (14). The upper part of each of the four vertical sliding grooves (14) is provided with a limit slot (16). Two lifting blocks (7) are slidably installed inside two of the opposite vertical sliding grooves (14), and the lifting blocks (7) are aligned with the limit slots (16).

5. A sludge dewatering device for wastewater treatment according to claim 4, characterized in that: One end of each of the two lifting blocks (7) is provided with a horizontal groove (17). A right-angled trapezoidal plug (18) is movably inserted into the interior of each of the two horizontal grooves (17). The two right-angled trapezoidal plugs (18) are movably inserted into the interior of the two limiting slots (16). A spring (19) is fixedly connected between one end of the right-angled trapezoidal plug (18) and the interior of the horizontal groove (17). A pulley (20) is installed inside the horizontal groove (17). A cable (21) is fixedly connected to one end of each right-angled trapezoidal plug (18). An n-shaped block (22) is fixedly installed on the top of each of the two lifting blocks (7). An inverted T-shaped block (23) is movably inserted into the middle of each of the two n-shaped blocks (22). One end of the cable (21) passes through the spring (19), through the pulley (20), and is fixedly connected to the bottom of the inverted T-shaped block (23). A lifting ring (24) is fixedly connected to the top of each inverted T-shaped block (23).

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