Anti-blocking hydraulic screen

Abstract

The utility model provides an anti-blocking hydraulic screen which comprises a box body placed on a plane, the box body is composed of a left side plate, a right side plate, a top plate, a back plate and a bottom plate, a slag receiving groove is formed in the lower end of the front side of the box body, a water inlet and distribution groove is formed in the upper end of the back of the box body, a water inlet pipe penetrates through the back plate to be communicated with the water inlet and distribution groove, and a water outlet pipe is installed on the lower portion of the back plate. A spiral conveyor is installed in the residue receiving groove, the spiral conveyor penetrates out of the left side plate and the right side plate to be connected into the squeezing assembly, a flushing assembly and a wedge-shaped net support are arranged in the box body, one end of the wedge-shaped net support is connected with the box body through a shaft, the other end of the wedge-shaped net support is connected with the box body through a spring, and a filtering wedge-shaped net and a rapping assembly are installed on the wedge-shaped net support. A plurality of groups of hole sites connected with the wedge-shaped net bracket are arranged in the box body; the flushing assembly flushes the surface of the sieve plate, blockage of the sieve plate is reduced, and the filtering effect of the sieve plate is improved.

Description

Technical Field

[0001] The utility model belongs to the field of water conservancy machinery and equipment, and particularly relates to a clogging-proof hydraulic screen. Background Art

[0002] A hydraulic screen is a simple, efficient, and easy-to-maintain sewage interception device that uses perforated materials to intercept suspended solids in liquids. It is mainly applicable to removing solid suspended impurities from sewage. It is commonly used in the treatment of industrial wastewater such as printing and dyeing wastewater and poultry processing, as well as urban sewage treatment and the recovery of useful solid debris. However, the traditional hydraulic screen has the following problems:

[0003] ① However, impurities with large volume and weight are not easily washed away by water and tend to accumulate on the surface of the screen mesh, causing the screen mesh to clog. Water cannot flow normally through the screen holes and instead flows out of the screen body from above, affecting the filtering effect of the screen mesh;

[0004] ② There are many factors affecting the operation effect of the hydraulic screen, such as water volume, water quality, viscosity, size, and quantity of slag. Once the operating conditions change during operation, due to the fixed filter mesh and fixed inclination angle, it may cause slag accumulation on the screen surface or water and slag to flow out of the screen surface together, resulting in "water leakage";

[0005] ③ This hydraulic screen only has the function of filtering sewage and cannot dehydrate the filtered filter residue. The filter residue has a high water content, which is not convenient for the subsequent treatment of sludge. Content of the Utility Model

[0006] To solve the above problems, the utility model provides a clogging-proof hydraulic screen, including: a box body placed on a plane. The box body is composed of left and right side plates, a top plate, a back plate, and a bottom plate. There is a slag receiving trough at the lower end of the front side. An inlet water distribution trough is installed inside the upper end of the back of the box body, and a water inlet pipe passes through the back plate to communicate with the inlet water distribution trough. A water outlet pipe is installed at the lower part of the back plate. A screw conveyor is installed in the slag receiving trough, and the screw conveyor passes through the left and right side plates and is connected to a pressing assembly. There is a flushing assembly and a wedge-shaped mesh support inside the box body. One end of the wedge-shaped mesh support is connected to the box body through a shaft, and the other end is connected to the box body through a spring. A filtering wedge-shaped mesh and a vibration component are installed on the wedge-shaped mesh support.

[0007] Further, the pressing assembly includes a pressing section cylindrical wedge-shaped mesh, a water receiving trough, and a pressing baffle. The water receiving trough is fixed outside the left and right side plates, communicating with the slag receiving trough and the inside of the box body on one side, and fixing the pressing baffle on the other side. The pressing section cylindrical wedge-shaped mesh is installed inside the water receiving trough.

[0008] Further, the screw conveyor includes a screw shaft and a reduction motor. The reduction motor is installed outside the left and right side plates. The screw shaft passes through one end of the slag receiving trough to connect to the reduction motor and the other end is connected to the pressing assembly.

[0009] Further, the flushing assembly includes: a spray head, a cleaning pipeline, and a booster pump. The booster pump is installed outside the back plate, the cleaning pipeline is installed inside the box body, one end is connected to the bottom of the box body, the other end is equipped with a spray head, and the cleaning pipeline passes through the back plate and is connected to the booster pump.

[0010] Further, the vibrating assembly includes a vibrator bracket and a vibrator. The vibrator bracket is installed on the wedge-shaped mesh bracket, and a vibrator is installed in the middle of the vibrator bracket to contact the filtering wedge-shaped mesh.

[0011] Further, a number of small holes are opened at the bottom of the slag receiving tank, and the aperture is equivalent to the grid gap of the wedge-shaped mesh.

[0012] Further, the bottom plate is higher at the front and lower at the back, and the rear part is flush with the connection part of the water outlet pipe.

[0013] Further, in the anti-clogging hydraulic screen according to the claim, a plurality of connection hole positions with the wedge-shaped mesh bracket are arranged inside the box body.

[0014] Further, the wedge-shaped mesh bracket and the filtering wedge-shaped mesh are connected by bolts.

[0015] Further, a top water baffle is also provided above the connection part of the water outlet pipe inside the box body, and a water baffle at the top of the water distribution tank is also provided above the water distribution tank inside the box body.

[0016] The utility model has the following beneficial effects:

[0017] 1) The connection hole positions can be simply and quickly changed to adjust the inclination angle of the screen assembly. The wedge-shaped mesh can be quickly replaced to change the filtering aperture. The equipment can operate efficiently under any working conditions;

[0018] 2) By the operation of the vibrator and the flushing of the flushing assembly, the blockage of the sieve plate is reduced, and the filtering effect of the sieve plate is improved;

[0019] 3) The pressing function is added. The moisture content of the impurities after pressing is greatly reduced, which is convenient for subsequent treatment. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the front sectional structure of the box body of the utility model;

[0021] Figure 2 is a schematic diagram of the left sectional structure of the box body of the utility model;

[0022] Figure 3 is a schematic diagram of the upper sectional structure of the box body of the utility model;

[0023] Figure 4 is a schematic diagram of the bottom hole plate structure of the utility model.

[0024] In the figure: 1 - left and right side plates; 2 - top plate; 3 - back plate; 4 - water inlet pipe; 5 - water inlet distribution tank; 6 - spray head; 7 - cleaning pipeline; 8 - booster pump; 9 - water outlet pipe; 10 - partition; 11 - top baffle; 12 - bottom plate; 13 - baffle at the top of the distribution tank; 14 - top baffle; 15 - filter wedge-shaped mesh; 16 - wedge-shaped mesh support; 17 - reduction motor; 18 - screw shaft; 19 - conveying trough; 20 - cylindrical wedge-shaped mesh in the pressing section; 21 - water receiving trough; 22 - pressing baffle; 23 - vibrator support; 24 - vibrator. Specific implementation mode

[0025] 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 making creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1

[0027] Please refer to Figures 1-4 , the present invention provides a technical solution: an anti-clogging hydraulic screen, including a box body placed on a plane. The box body is composed of left and right side plates 1, a top plate 2, a back plate 3, and a bottom plate 12. There is a slag receiving trough 19 at the lower end of the front side. Inside the upper end of the back of the box body, a water inlet distribution tank 5 is installed, and a water inlet pipe 4 passes through the back plate 3 to communicate with the water inlet distribution tank 5. A water outlet pipe is installed at the lower part of the back plate 3. A screw conveyor is installed in the slag receiving trough 19, and the screw conveyor passes through the left and right side plates 1 and is connected to a pressing assembly. There is a flushing assembly and a wedge-shaped mesh support 16 inside the box body. One end of the wedge-shaped mesh support 16 is connected to the box body through a shaft, and the other end is connected to the box body through a spring. A filter wedge-shaped mesh 15 and a vibrating assembly are installed on the wedge-shaped mesh support 16.

[0028] The pressing assembly includes a cylindrical wedge-shaped mesh 20 in the pressing section, a water receiving trough 21, and a pressing baffle 22. The water receiving trough 21 is fixed outside the left and right side plates 1, communicating with the slag receiving trough 19 and the inside of the box body on one side, and fixing the pressing baffle 22 on the other side. The cylindrical wedge-shaped mesh 20 in the pressing section is installed inside the water receiving trough 21.

[0029] The screw conveyor includes a screw shaft 18 and a reduction motor 17. The reduction motor 17 is installed outside the left and right side plates 1. The screw shaft 18 passes through the slag receiving trough 19, connecting to the reduction motor 17 at one end and accessing the pressing assembly at the other end.

[0030] The flushing assembly includes: a spray head 6, a cleaning pipeline 7, and a booster pump 8. The booster pump 8 is installed outside the back plate 3. The cleaning pipeline 7 is installed inside the box body, accessing the bottom of the box body at one end and installing a spray head 6 at the other end. The cleaning pipeline 7 passes through the back plate 3 and is connected to the booster pump 8.

[0031] The rapping assembly includes a rapping device support 23 and a rapping device 24. The rapping device support 23 is installed on the wedge-shaped mesh support 16, and the rapping device 24 is installed in the middle of the rapping device support 23 to contact the filter wedge-shaped mesh 15.

[0032] Several small holes are opened at the bottom of the slag receiving tank 19, and the aperture is equivalent to the grid gap of the wedge-shaped mesh.

[0033] The bottom plate 12 is higher at the front and lower at the rear, and the rear part is flush with the connection part of the water outlet pipe 9.

[0034] Multiple connection hole positions for the wedge-shaped mesh support 16 are provided inside the box body.

[0035] The wedge-shaped mesh support 16 and the filter wedge-shaped mesh 15 are connected by bolts.

[0036] A water baffle at the top of the water distribution tank is also provided above the water inlet distribution tank inside the box body.

[0037] A top baffle is also provided above the connection part of the water outlet pipe inside the box body.

[0038] Working principle: When using this anti-clogging hydraulic screen, as Figures 1-4 shown, sewage enters the water inlet distribution tank through the water inlet pipe 4, flows through the filter wedge-shaped mesh 15 for filtration, impurities fall into the slag receiving tank 19, the reduction motor 17 drives the spiral shaft 18 to rotate, conveys the impurities to the pressing assembly for pressing, and the cylindrical wedge-shaped mesh 20 in the pressing section facilitates the discharge of water. The filtered water flows into the box body, and the moisture content of the impurities after pressing is greatly reduced, which is convenient for subsequent treatment. The booster pump 8 pumps and pressurizes water in the box body through the cleaning pipeline 7, and sprays the water on the filter wedge-shaped mesh 15 through the nozzle 6 to wash the slag adhered to the surface of the sieve plate. The rapping device 24 moves at intervals on the filter wedge-shaped mesh 15, and the impurities accumulated on the surface of the filter wedge-shaped mesh 15 fall off through vibration. The clogging of the sieve plate is reduced, and the filtering effect of the sieve plate is improved. Several small holes are opened at the bottom of the slag receiving tank 19, which facilitates the rapid discharge of the water overflowing into the slag receiving tank. The bottom plate 12 is higher at the front and lower at the rear, and the rear part is flush with the connection part of the water outlet pipe 9, which is convenient for the water to be discharged from the water outlet pipe 9. Multiple connection hole positions for the wedge-shaped mesh support 16 are provided inside the box body, and the connection hole positions of the wedge-shaped mesh support 16 can be simply and quickly changed, so that the inclination angle of the filter wedge-shaped mesh 15 can be adjusted. The wedge-shaped mesh support 16 and the filter wedge-shaped mesh 15 are connected by bolts, and the filter wedge-shaped mesh 15 can be quickly replaced to change the filtering aperture, so that the filter wedge-shaped mesh 15 can adapt to complex working conditions.

[0039] With the present utility model, the connection hole positions of the screen can be simply and quickly changed, so that the inclination angle of the screen assembly can be adjusted. The wedge-shaped screen can be quickly replaced to change the filtering aperture. Thus, the equipment can operate efficiently under any working conditions; by operating the vibrator and flushing with the flushing assembly, the blockage of the sieve plate can be reduced and the filtering effect of the sieve plate can be improved; the pressing function is added. The moisture content of the impurities after pressing is greatly reduced, which is convenient for subsequent treatment.

[0040] The specific embodiments of the present utility model disclosed above are only illustrative. However, the present utility model is not limited thereto, and any changes that can be conceived by those skilled in the art shall fall within the protection scope of the present utility model.

Claims

1. An anti-clogging hydraulic screen, comprising a box body placed on a plane, the box body consisting of left and right side plates (1), a top plate (2), a back plate (3) and a bottom plate (12), a slag receiving groove (19) at the lower end of the front side, characterized in that: A water inlet distribution trough (5) is installed inside the upper back end of the box body, and a water inlet pipe (4) passes through the back plate (3) to connect to the water inlet distribution trough (5). A water outlet pipe is installed at the lower part of the back plate (3). A screw conveyor is installed in the slag receiving trough (19), and the screw conveyor passes through the left and right side plates (1) to connect to the pressing component. A flushing component and a wedge-shaped net bracket (16) are arranged inside the box body. One end of the wedge-shaped net bracket (16) is connected to the box body through a shaft, and the other end is connected to the box body through a spring. A filtering wedge-shaped net (15) and a vibration component are installed on the wedge-shaped net bracket (16).

2. The anti-clogging hydraulic screen according to claim 1, characterized in that: The pressing assembly comprises a pressing section cylindrical wedge-shaped net (20), a water receiving trough (21) and a pressing baffle (22); the water receiving trough (21) is fixed outside the left and right side plates (1), one side of which is connected to the slag receiving trough (19) and the inside of the box body, and the other side of which is fixed to the pressing baffle (22); the pressing section cylindrical wedge-shaped net (20) is installed inside the water receiving trough (21).

3. The anti-clogging hydraulic screen according to claim 1, characterized in that: The screw conveyor comprises a screw shaft (18) and a reduction motor (17). The reduction motor (17) is mounted outside the left and right side plates (1). The screw shaft (18) passes through the slag receiving trough (19) and is connected to the reduction motor (17) at one end and connected to the pressing component at the other end.

4. The anti-clogging hydraulic screen according to claim 1, characterized in that: The flushing assembly comprises: a nozzle (6), a cleaning pipeline (7) and a booster pump (8); the booster pump (8) is installed outside the back plate (3); the cleaning pipeline (7) is installed inside the box, one end of which is connected to the bottom of the box and the other end of which is equipped with the nozzle (6); the cleaning pipeline (7) passes through the back plate (3) and is connected to the booster pump (8).

5. The anti-clogging hydraulic screen according to claim 1, characterized in that: The rapping assembly comprises a rapper bracket (23) and a rapper (24); the rapper bracket (23) is mounted on a wedge-shaped net bracket (16); a rapper (24) is mounted in the middle of the rapper bracket (23) to contact the filtering wedge-shaped net (15).

6. The anti-clogging hydraulic screen according to claim 1, characterized in that: The bottom of the slag receiving groove (19) is provided with a plurality of small holes.

7. The anti-clogging hydraulic screen according to claim 1, characterized in that: The bottom plate (12) is higher at the front and lower at the back, and the back portion is flush with the inner circle of the water outlet pipe (9).

8. The anti-clogging hydraulic screen according to claim 1, characterized in that: A plurality of groups of connection holes for connecting with the wedge-shaped net bracket (16) are arranged inside the box.

9. The anti-clogging hydraulic screen according to claim 1, characterized in that: The wedge-shaped net support (16) is connected to the filtering wedge-shaped net (15) by bolts.

10. The anti-clogging hydraulic screen according to claim 1, characterized in that: A top water baffle (14) is also provided above the connection point of the water outlet pipe inside the box body, and a top water baffle (13) of the water distribution trough is also provided above the water inlet distribution trough inside the box body.

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