Sewage desliming equipment

Abstract

The utility model discloses sewage desliming equipment, which relates to the technical field of sewage treatment and comprises an inlet box and hollow support rods fixedly connected to four corners of the inlet box, a tail plate is fixedly connected between the ends, far away from the inlet box, of the hollow support rods, and an outlet plate is fixedly connected to the position, close to the tail plate, of the hollow support rods. A stacked screw cylinder is installed between the outlet plate and the inlet box, the lower end of the outlet plate is fixedly connected with a sludge discharging hopper, a water discharging hopper is arranged at the position, located below the stacked screw cylinder, of the hollow supporting rod, and an inlet pipe communicated with the hollow supporting rod is arranged on one side of the inlet box. Through the arrangement of the hollow supporting rod, the sliding rod and the locking assembly, the variable-pitch screw rod can be pulled out of the stacked screw cylinder when the variable-pitch screw rod is stuck with mud, cleaning is very convenient, and the problem that in the prior art, the variable-pitch screw rod is tedious to clean is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage de-sludging device. Background Art

[0002] Sewage treatment is a process of purifying sewage to meet the water quality requirements for discharging into a certain water body or reusing it. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, and catering. In sewage treatment, it is necessary to separate the sludge in the sewage to facilitate further treatment of the sewage.

[0003] For the de-sludging of sewage, generally a sewage de-sludging device is used for treatment. For example, a high-efficiency de-sludging device for sewage treatment proposed in the authorized publication number CN222250376U includes a horizontally arranged de-sludging cylinder. A main shaft coaxially arranged with the de-sludging cylinder is arranged inside the de-sludging cylinder. Two groups of symmetrically arranged extrusion spiral blades are fixedly installed on the main shaft. This device uses the extrusion spiral blades to extrude the sludge to squeeze out the water in the sludge, realizing the separation of water and sludge.

[0004] Although the above device can realize the de-sludging work of sewage, when the de-sludging device with a spiral extrusion structure is working, there is often a problem of sludge jamming where the sludge adheres to the screw rod and cannot be discharged. When encountering this problem, generally, the screw rod needs to be disassembled from the filter cylinder for cleaning. However, the prior art requires the use of a hoisting tool or a support device to support the disassembly of the screw rod, and the process is relatively cumbersome. Moreover, when assembling, the screw rod needs to be aligned with the center of the filter cylinder and inserted. However, the screw rod is relatively heavy, and this operation is very laborious. In view of the above problems, we provide a sewage de-sludging device. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a sewage de-sludging device to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sewage sludge removal device includes an inlet box and hollow support rods fixedly connected to the four corners of the inlet box. One end of the hollow support rods away from the inlet box is fixedly connected with a tail plate. An outlet plate is fixedly connected at a position of the hollow support rods close to the tail plate. A stacked screw cylinder is installed between the outlet plate and the inlet box. A sludge discharge hopper is fixedly connected to the lower end of the outlet plate. A drainage hopper is provided at a position of the hollow support rods below the stacked screw cylinder. An inlet pipe communicating with the hollow support rods is provided on one side of the inlet box. A sliding rod is slidably connected inside each of the hollow support rods. One end of the sliding rods away from the hollow support rods is fixedly connected with a mounting plate. A sludge removal component for cooperating with the stacked screw cylinder to remove sludge from sewage is provided on the mounting plate. A locking component for locking the mounting plate is provided on the hollow support rods. A sludge discharge component is further provided at a position between the tail plate and the outlet plate.

[0008] As a further scheme of the present utility model: The sludge removal component includes a variable pitch screw rod. The variable pitch screw rod is arranged inside the stacked screw cylinder. One end of the connecting shaft of the variable pitch screw rod is rotatably connected with the mounting plate. A reduction motor is installed on the mounting plate by means of a bracket. The output end of the reduction motor is fixedly connected with the connecting shaft at one end of the variable pitch screw rod. A flushing component for flushing the stacked screw cylinder and the variable pitch screw rod is provided on the inlet box.

[0009] As a further scheme of the present utility model: The pitch of the spiral blades on the variable pitch screw rod gradually decreases from the reduction motor to the outlet plate direction.

[0010] As a further scheme of the present utility model: The flushing component includes a connecting pipe head. The connecting pipe head is rotatably connected at the middle position of the upper end face of the inlet box. One side of the connecting pipe head is connected with a spray pipe. The spray pipe is communicated with the connecting pipe head. A plurality of spray heads are provided at the lower end of the spray pipe. Elastic clamps for fixing the spray pipe are provided on both sides of the upper end face of the inlet box. A reinforcing rod is further fixedly connected to the upper end of the connecting pipe head. One end of the reinforcing rod away from the connecting pipe head is fixedly connected with the spray pipe.

[0011] As a further scheme of the present utility model: The locking component includes two U-shaped buckle plates. The two U-shaped buckle plates are respectively fixedly connected at positions on both sides of the mounting plate. Threaded columns are rotatably connected at positions on both sides of the inlet box close to the U-shaped buckle plates. Locking nuts are threadedly connected to the threaded columns.

[0012] As a further scheme of the present utility model: The sludge discharge component includes an adjusting plate. The adjusting plate is arranged at a position between the tail plate and the outlet plate. The adjusting plate is slidably connected with the four hollow support rods. A sliding column is slidably connected inside the adjusting plate. One end of the sliding column close to the outlet plate is fixedly connected with a back pressure plate. A spring is arranged on the sliding column at a position between the adjusting plate and the back pressure plate. An adjusting component for adjusting the position of the adjusting plate is further provided on the tail plate.

[0013] As a further solution of the present utility model: The adjusting assembly includes a U-shaped bracket, the U-shaped bracket is fixedly connected to the side of the adjusting plate away from the outlet plate, a threaded rod is connected in the middle of the tail plate in a threaded manner, the threaded rod is rotatably connected to the U-shaped bracket, and a rotating handle is fixedly connected to the end of the threaded rod away from the U-shaped bracket.

[0014] As a further solution of the present utility model: Side plates are installed at the positions of the four hollow support rods on both sides of the stacked screw cylinder.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] By setting the hollow support rod, the sliding rod and the locking assembly, when the variable pitch screw rod gets stuck with mud, the variable pitch screw rod can be pulled out from the stacked screw cylinder. Due to the limitation of the sliding rod, the variable pitch screw rod can be directly pulled out horizontally. At the same time, the variable pitch screw rod is flushed in cooperation with the flushing assembly, which makes it more convenient for the staff to clean the sludge on the variable pitch screw rod. And after the mud clogging problem is eliminated, the variable pitch screw rod can be pushed in again, and the cleaning is very convenient, effectively solving the problem of cumbersome cleaning of the variable pitch screw rod in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the present utility model.

[0018] Figure 2 It is a schematic structural diagram of the present utility model when the side plate is disassembled.

[0019] Figure 3 It is a schematic structural diagram of the sludge discharging assembly of the present utility model.

[0020] Figure 4 It is a schematic structural diagram of the present utility model when the variable pitch screw rod is pulled out.

[0021] Figure 5 In the present utility model Figure 1 The enlarged structural schematic diagram of part A.

[0022] Figure 6 It is a schematic structural diagram of the flushing assembly of the present utility model.

[0023] Wherein: 1. Hollow support rod; 2. Adjusting plate; 3. Spray pipe; 4. Connecting pipe head; 5. Inlet box; 6. Mounting plate; 7. Reduction motor; 8. Inlet pipe; 9. Drain hopper; 10. Stacked screw cylinder; 11. Sludge discharge hopper; 12. Side plate; 13. Tail plate; 14. Outlet plate; 15. Elastic clamp; 16. Locking nut; 17. Threaded column; 18. U-shaped buckle plate; 19. Sliding rod; 20. Variable pitch screw rod; 21. U-shaped bracket; 22. Sliding column; 23. Back pressure plate; 24. Spring; 25. Threaded rod. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 - 6 , in the embodiment of the present invention, a sewage sludge dewatering device includes an inlet box 5 and hollow support rods 1 fixedly connected to the four corners of the inlet box 5. A tail plate 13 is fixedly connected between the ends of the hollow support rods 1 far from the inlet box 5, and an outlet plate 14 is fixedly connected to the hollow support rods 1 near the tail plate 13. A stacked screw cylinder 10 is installed between the outlet plate 14 and the inlet box 5. The stacked screw cylinder 10 is composed of a fixed ring, a floating ring and a guide post. The fixed ring and the floating ring are alternately stacked on the guide post. The fixed ring is a ring structure with a certain strength and rigidity for providing stable support. The floating ring is a circular ring component that can move or displace relative to the fixed ring, and its purpose is to cooperate with the fixed ring to form a variable gap. During operation, when the sludge is pushed into the gap between the fixed ring and the floating ring, due to the limitation of the gap and the continuous extrusion of the variable pitch screw rod 20, the water in the sludge is squeezed out and discharged through the gap, while the solid particles in the sludge are too large in particle size to pass through the gap and are intercepted inside the fixed ring and the floating ring, thereby realizing the dewatering work of the sludge.

[0026] A sludge discharge hopper 11 is fixedly connected to the lower end of the outlet plate 14. A drain hopper 9 is provided at the position of the hollow support rod 1 below the stacked screw cylinder 10. An inlet pipe 8 communicating with the hollow support rod 1 is provided on one side of the inlet box 5. A sliding rod 19 is slidably connected inside the hollow support rod 1. A mounting plate 6 is fixedly connected between the ends of the sliding rod 19 away from the hollow support rod 1. Side plates 12 are installed at the positions of the four hollow support rods 1 on both sides of the stacked screw cylinder 10. By providing the hollow support rod 1 and the sliding rod 19, when the variable pitch screw rod 20 gets stuck with sludge, the variable pitch screw rod 20 can be pulled out of the stacked screw cylinder 10. Due to the limitation of the sliding rod 19, the variable pitch screw rod 20 can be directly pulled out horizontally, which is convenient to use.

[0027] A sludge dewatering assembly for cooperating with the stacked screw cylinder 10 to dewater sewage is provided on the mounting plate 6. The sludge dewatering assembly includes a variable pitch screw rod 20. The variable pitch screw rod 20 is arranged inside the stacked screw cylinder 10. One end of the connecting shaft of the variable pitch screw rod 20 is rotatably connected to the mounting plate 6. A reduction motor 7 is mounted on the mounting plate 6 by a bracket. The output end of the reduction motor 7 is fixedly connected to the connecting shaft of one end of the variable pitch screw rod 20. A flushing assembly for flushing the stacked screw cylinder 10 and the variable pitch screw rod 20 is provided on the inlet box 5. The pitch of the helical blades on the variable pitch screw rod 20 gradually decreases from the reduction motor 7 to the outlet plate 14. During operation, the reduction motor 7 drives the variable pitch screw rod 20 to rotate. The sludge is continuously pushed forward by the screw shaft. Along the outlet direction, the pitch of the variable pitch screw rod 20 gradually becomes smaller, squeezing the sewage. At the same time, under the action of the outlet back pressure plate 23, the internal pressure gradually increases, and the water in the sludge is further squeezed out. Finally, the dewatered sludge is discharged from the gap between the back pressure plate 23 and the outlet plate 14.

[0028] The flushing assembly includes a connecting pipe head 4. The connecting pipe head 4 is rotatably connected to the middle position of the upper end surface of the inlet box 5. A spray pipe 3 is connected to one side of the connecting pipe head 4. The spray pipe 3 communicates with the connecting pipe head 4. A plurality of nozzles are provided at the lower end of the spray pipe 3. Elastic clamps 15 for fixing the spray pipe 3 are provided on both sides of the upper end surface of the inlet box 5. A reinforcing rod is also fixedly connected to the upper end of the connecting pipe head 4. One end of the reinforcing rod away from the connecting pipe head 4 is fixedly connected to the spray pipe 3. When it is necessary to flush the surface of the stacked screw cylinder 10, the water supply pipeline can be first connected to the connecting pipe head 4, and at the same time, the water valve on the water supply pipeline is opened to make water enter the spray pipe 3 and spray out from the nozzles on the spray pipe 3 to flush the surface of the stacked screw cylinder 10. When the variable pitch screw rod 20 is disassembled and needs to be flushed, the spray pipe 3 can be rotated to make the spray pipe 3 rotate above the variable pitch screw rod 20, and then the spray pipe 3 is buckled to the corresponding elastic clamp 15, so that the disassembled variable pitch screw rod 20 can be flushed, which is convenient for the staff to clean the variable pitch screw rod 20.

[0029] A locking component for locking the mounting plate 6 is provided on the hollow support rod 1. The locking component includes two U-shaped clamping plates 18 which are respectively fixedly connected to the two sides of the mounting plate 6. Threaded columns 17 are rotatably connected to the positions of both sides of the inlet box 5 close to the U-shaped clamping plates 18, and locking nuts 16 are threadedly connected to the threaded columns 17. When it is necessary to lock the mounting plate 6, the threaded columns 17 are flipped into the U-shaped clamping plates 18, and then a wrench is used to rotate the locking nuts 16 to lock, so as to lock the mounting plate 6. When unlocking, first use a wrench to loosen the locking nuts 16, and then flip the threaded columns 17 out of the U-shaped clamping plates 18 to unlock the U-shaped clamping plates 18.

[0030] A sludge discharging component is further provided between the tail plate 13 and the outlet plate 14. The sludge discharging component includes an adjusting plate 2 which is arranged between the tail plate 13 and the outlet plate 14. The adjusting plate 2 is slidably connected to the four hollow support rods 1. A sliding column 22 is slidably connected to the adjusting plate 2. A back pressure plate 23 is fixedly connected to one end of the sliding column 22 close to the outlet plate 14. A spring 24 is arranged on the sliding column 22 between the adjusting plate 2 and the back pressure plate 23. An adjusting component for adjusting the position of the adjusting plate 2 is further provided on the tail plate 13. During operation, the spring 24 applies a certain pressure to the back pressure plate 23, and cooperates with the variable pitch screw rod 20 to extrude the sludge. At the same time, when the back pressure plate 23 receives the sludge pushed out by the variable pitch screw rod 20, it will retreat towards the adjusting plate 2, so that the sludge is discharged from the gap between the back pressure plate 23 and the outlet plate 14. At the same time, the provided adjusting component can adjust the pressure applied by the spring 24 to the back pressure plate 23, and thus the moisture content of the discharged sludge can be controlled as required.

[0031] The adjusting component includes a U-shaped bracket 21 which is fixedly connected to the side of the adjusting plate 2 away from the outlet plate 14. A threaded rod 25 is threadedly connected to the middle of the tail plate 13. The threaded rod 25 is rotatably connected to the U-shaped bracket 21. A rotating handle is fixedly connected to one end of the threaded rod 25 away from the U-shaped bracket 21. When adjusting, the threaded rod 25 is rotated by rotating the handle. The rotation of the threaded rod 25 can drive the U-shaped bracket 21 to move. The movement of the U-shaped bracket 21 drives the adjusting plate 2, and the movement of the adjusting plate 2 will squeeze the spring, so as to realize the adjustment of the pressure received by the back pressure plate 23.

[0032] The working principle of the utility model is as follows: during operation, the flocculated sewage is introduced from the inlet pipe 8, enters the inlet box 5, and then the speed reduction motor 7 drives the variable pitch screw rod 20 to rotate. The sludge continuously moves forward under the push of the screw shaft. Along the outlet direction, the pitch of the variable pitch screw rod 20 gradually becomes smaller, squeezing the sludge. The squeezed water is discharged from the gaps on the stacked screw cylinder 10. At the same time, under the action of the outlet back pressure plate 23, the internal pressure gradually increases, and the water in the sludge is further squeezed out. Finally, the dewatered sludge is discharged from the gap between the back pressure plate 23 and the outlet plate 14 and slides down along the sludge discharge hopper 11.

[0033] When the variable pitch screw rod 20 gets stuck with sludge, first use a wrench to loosen the locking nut 16, and then turn the threaded column 17 to disengage from the U-shaped buckle 18 to unlock the U-shaped buckle 18. Then pull the mounting plate 6 to extract the variable pitch screw rod 20 from the stacked screw cylinder 10. Then rotate the spray pipe 3 so that the spray pipe 3 rotates above the variable pitch screw rod 20, and then buckle the spray pipe 3 onto the corresponding elastic clamp 15, so as to wash the removed variable pitch screw rod 20, which is convenient for the staff to clean the variable pitch screw rod 20. After the cleaning is completed, push the variable pitch screw rod 20 back into the stacked screw cylinder 10 and then lock the U-shaped buckle 18 with the threaded column 17 and the locking nut 16.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Although this specification is described according to the embodiments, not each embodiment only contains one technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard 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 sewage desludging device, comprising an inlet box (5) and hollow support rods (1) fixedly connected to four corners of the inlet box (5), characterized in that: A tail plate (13) is fixedly connected between the ends of the hollow support rod (1) away from the inlet box (5), an outlet plate (14) is fixedly connected to the position of the hollow support rod (1) close to the tail plate (13), a stacking screw barrel (10) is installed between the outlet plate (14) and the inlet box (5), a mud discharge bucket (11) is fixedly connected to the lower end of the outlet plate (14), a drainage bucket (9) is provided at a position below the stacking screw barrel (10), and a side of the inlet box (5) is provided with a hollow support rod (1) and a mud discharge bucket (11) is fixedly connected to the hollow support rod (1). The hollow support rod (1) is provided with an inlet pipe (8) connected to the support rod (1), the interior of the hollow support rod (1) is slidably connected with a sliding rod (19), a mounting plate (6) is fixedly connected between the ends of the sliding rod (19) away from the hollow support rod (1), a desludging assembly for cooperating with the stacked screw cylinder (10) to desludify sewage is provided on the mounting plate (6), a locking assembly for locking the mounting plate (6) is provided on the hollow support rod (1), and a mud discharge assembly is also provided at a position between the tail plate (13) and the outlet plate (14).

2. A sewage desludging device according to claim 1, characterized in that: The desludging assembly comprises a variable pitch screw rod (20), the variable pitch screw rod (20) being arranged inside the stacking screw barrel (10), a connecting shaft at one end of the variable pitch screw rod (20) being rotatably connected to a mounting plate (6), a reduction motor (7) being mounted on the mounting plate (6) by means of a bracket, an output end of the reduction motor (7) being fixedly connected to a connecting shaft at one end of the variable pitch screw rod (20), and a flushing assembly for flushing the stacking screw barrel (10) and the variable pitch screw rod (20) being provided on the inlet box (5).

3. A sewage desludging device according to claim 2, characterized in that: The pitch of the spiral blades on the variable pitch spiral rod (20) gradually decreases in the direction from the reduction motor (7) to the outlet plate (14).

4. A sewage desludging device according to claim 2, characterized in that: The flushing assembly comprises a connecting pipe head (4), the connecting pipe head (4) being rotatably connected to a middle position of an upper end surface of an inlet box (5), a spray pipe (3) being connected to one side of the connecting pipe head (4), the spray pipe (3) being in communication with the connecting pipe head (4), a plurality of spray heads being arranged at the lower end of the spray pipe (3), elastic clamps (15) for fixing the spray pipe (3) being arranged on both sides of an upper end surface of the inlet box (5), a reinforcing rod being fixedly connected to the upper end of the connecting pipe head (4), and an end of the reinforcing rod being away from the connecting pipe head (4) being fixedly connected to the spray pipe (3).

5. The sewage desludging equipment according to claim 1, characterized in that: The locking assembly comprises two U-shaped buckle plates (18), the two U-shaped buckle plates (18) being fixedly connected to positions on both sides of the mounting plate (6), respectively, and positions on both sides of the inlet box (5) close to the U-shaped buckle plates (18) are rotatably connected to threaded columns (17), and locking nuts (16) are threadedly connected to the threaded columns (17).

6. The sewage desludging equipment according to claim 1, characterized in that: The mud discharge assembly comprises an adjustment plate (2), wherein the adjustment plate (2) is arranged between the tail plate (13) and the outlet plate (14), the adjustment plate (2) is slidably connected to four hollow support rods (1), a sliding column (22) is slidably connected inside the adjustment plate (2), one end of the sliding column (22) close to the outlet plate (14) is fixedly connected to a back pressure plate (23), a spring (24) is passed through the sliding column (22) at a position between the adjustment plate (2) and the back pressure plate (23), and an adjustment assembly for adjusting the position of the adjustment plate (2) is also provided on the tail plate (13).

7. A sewage desludging device according to claim 6, characterized in that: The adjustment assembly comprises a U-shaped bracket (21), the U-shaped bracket (21) being fixedly connected to a side of the adjustment plate (2) away from the outlet plate (14), a threaded rod (25) being threadedly connected in the middle of the tail plate (13), the threaded rod (25) being rotatably connected to the U-shaped bracket (21), and a rotating handle being fixedly connected to one end of the threaded rod (25) away from the U-shaped bracket (21).

8. The sewage desludging equipment according to claim 1, characterized in that: Side plates (12) are installed at positions of the four hollow support rods (1) located on both sides of the spiral stacking barrel (10).

Images