A device for separating impurities in sewage pretreatment

Abstract

The utility model discloses an impurity separation device of sewage pretreatment relates to sewage pretreatment technical field, including separation tank, the inside of separation tank is provided with filter screen, the side wall of separation tank is provided with sliding channel, the inside sliding of sliding channel is provided with mobile seat, mobile seat is fixedly connected with the conveying pipe, and the one end of conveying pipe is inclined downward in separation tank inside, and it is towards filter screen, the rotatory setting of separation tank has round bar, the fixedly connected with swing bar of round bar, and swing bar and the lower surface of filter screen abutment cooperation, round bar and mobile seat cooperate through drive assembly. This impurity separation device of sewage pretreatment sets up sliding channel, mobile seat, conveying pipe and other structures, prevents the granule impurity and accumulates on the filter screen, filters fast, guarantees the efficiency of impurity separation, and the sewage is even and falls on the filter screen, and the filter screen bears the water flow impact force evenly, prolongs the service life of filter screen, improves the use efficiency of impurity separation device.

Description

Technical Field

[0001] This utility model relates to the field of wastewater pretreatment technology, and in particular to an impurity separation device for wastewater pretreatment. Background Technology

[0002] Wastewater pretreatment is a pretreatment facility set up before wastewater enters traditional sedimentation and biological treatment processes, according to the requirements of subsequent processes. Its core purpose is to remove suspended solids, adjust water quality, and protect downstream treatment equipment. Its main processes include physical interception (such as bar screens and sieves), sedimentation separation (such as grit chambers and primary sedimentation tanks), and coagulation treatment. It is a key link to ensure wastewater treatment efficiency, and impurity separation devices are used in wastewater pretreatment.

[0003] In existing technologies, the inlet pipe of the impurity separation device is usually fixed. When sewage enters the impurity separation device through the inlet pipe, it will always fall into the same area of ​​the filter screen. This will cause the sewage flow rate and volume in that area to be too high, while the sewage flow rate and volume in other areas will be relatively low. This will prevent the effective filtration area of ​​the entire filter screen from being fully utilized, leaving most areas idle, reducing separation efficiency. At the same time, this area will be continuously subjected to the impact force of the water flow, affecting the service life of the filter screen.

[0004] Therefore, it is necessary to propose an impurity separation device for wastewater pretreatment to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a wastewater pretreatment impurity separation device to solve the problem in the prior art where the inlet pipe of the impurity separation device is usually fixed. When wastewater enters the impurity separation device through the inlet pipe, it always falls on the same area of ​​the filter screen, resulting in excessive wastewater flow velocity and flow rate in that area, while the wastewater flow velocity and flow rate in other areas are relatively low. This makes it impossible to fully utilize the effective filtration area of ​​the entire filter screen, leaving most areas idle, reducing separation efficiency, and causing the area to be continuously subjected to water flow impact, affecting the service life of the filter screen.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wastewater pretreatment impurity separation device, comprising a separation box, wherein a filter screen is provided inside the separation box;

[0007] A sliding channel is provided on the side wall of the separation box, and a movable seat is slidably arranged inside the sliding channel. A conveying pipe is fixedly connected to the movable seat. The end of the conveying pipe inside the separation box is inclined downward and faces the filter screen.

[0008] A round rod is rotatably mounted on the separation box, and a swing bar is fixedly connected to the round rod. The swing bar abuts against the lower surface of the filter screen.

[0009] The round rod and the movable seat are connected by a drive assembly.

[0010] Preferably, the filter screen is inclined, with the end furthest from the sliding channel tilting downwards.

[0011] Preferably, the drive assembly includes a reciprocating screw, a slide, and an ear plate. The ear plate is fixedly connected to the outer wall of the separation box, the reciprocating screw is rotatably mounted on the ear plate, and the slide is fixedly connected to the movable seat. The slide cooperates with the reciprocating screw.

[0012] Preferably, the drive assembly further includes a first pulley, a second pulley, and a belt. The first pulley is fixedly connected to the round rod, and the second pulley is fixedly connected to the reciprocating lead screw. The first pulley and the second pulley are connected by belt drive.

[0013] Preferably, a filter frame is fixedly connected inside the separation box. The filter frame is L-shaped. A first soft sheet is fixedly connected to the top of the filter frame. The downwardly inclined end of the filter screen is fixedly connected to the first soft sheet. A second soft sheet is fixedly connected to the end of the filter screen away from the first soft sheet. The second soft sheet is fixedly connected to the inner wall of the separation box.

[0014] Preferably, the bottom end of the sliding channel is provided with a sliding groove, and a slider is slidably disposed inside the sliding groove, the slider being fixedly connected to the movable base.

[0015] Preferably, a motor is fixedly connected to the outer wall of the separation box, and the round rod is fixedly connected to the drive shaft of the motor.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. This utility model, by setting up a sliding channel, a movable seat, a conveying pipe and other structures, prevents particulate impurities from accumulating on the filter screen, achieves rapid filtration, ensures the efficiency of impurity separation, and ensures that the sewage falls evenly on the filter screen, so that the filter screen is evenly subjected to the impact force of the water flow, which extends the service life of the filter screen and improves the efficiency of the impurity separation device.

[0018] 2. By setting up drive components and other structures, the filter screen swings up and down when the conveying pipe moves back and forth, which accelerates the rolling of particulate impurities toward the filter frame and further improves the efficiency of the impurity separation device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the impurity separation device for wastewater pretreatment according to this utility model.

[0020] Figure 2 This is a schematic diagram of the impurity separation device for wastewater pretreatment according to this utility model from another perspective.

[0021] Figure 3This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0022] Figure 4 This is a schematic diagram of the filter frame and filter screen structure of this utility model.

[0023] Figure 5 This is a schematic diagram of the round rod and swing bar structure of this utility model.

[0024] In the diagram: 1. Separation box; 2. Sliding channel; 3. Moving seat; 4. Conveying pipe; 5. Slide groove; 6. Slider; 7. Reciprocating screw; 8. Slide seat; 9. Filter frame; 10. Filter screen; 11. First soft sheet; 12. Second soft sheet; 13. Round rod; 14. Swivel bar; 15. First pulley; 16. Second pulley; 17. Belt; 18. Motor; 19. Ear plate. Detailed Implementation

[0025] This utility model provides, for example Figures 1-5 The impurity separation device for wastewater pretreatment shown includes a separation box 1, a filter screen 10 is provided inside the separation box 1, and a filter frame 9 is fixedly connected inside the separation box 1. The filter frame 9 is L-shaped, and an accumulation area for impurities to accumulate is formed between the filter frame 9 and the inner wall of the separation box 1. Filter holes are provided on both the filter frame 9 and the filter screen 10.

[0026] The top of the filter frame 9 is fixedly connected to a first soft sheet 11. The downward-sloping end of the filter screen 10 is fixedly connected to the first soft sheet 11. The end of the filter screen 10 away from the first soft sheet 11 is fixedly connected to a second soft sheet 12. The second soft sheet 12 is fixedly connected to the inner wall of the separation box 1, and the two sides of the filter screen 10 slide against the inner wall of the separation box 1.

[0027] The filter screen 10 is distributed at an angle, with the end furthest from the filter frame 9 tilting upwards.

[0028] An operating trough, door panel, etc. can be installed at the position corresponding to the stacking area of ​​the separation box 1, and the operator can centrally process the impurities in the stacking area through the operating trough.

[0029] The first soft sheet 11 and the second soft sheet 12 can be made of rubber, but are not limited to rubber, and have a certain degree of elasticity, so that the filter screen 10 can swing up and down.

[0030] A sliding channel 2 is provided on the side wall of the separation box 1. A movable seat 3 is slidably arranged inside the sliding channel 2. The sliding channel 2 is inclined upward near the filter frame 9. A groove 5 is provided at the bottom of the sliding channel 2. A slider 6 is slidably arranged inside the groove 5. The slider 6 is fixedly connected to the movable seat 3. The groove 5 and the slider 6 are provided to improve the stability of the movable seat 3 sliding inside the sliding channel 2. In addition, ball bearings can be set between the groove 5 and the slider 6 to improve the smoothness of sliding.

[0031] Meanwhile, baffles or other measures (not shown in the figure) can be installed at sliding channel 2 to prevent sewage from splashing out of sliding channel 2.

[0032] A conveying pipe 4 is fixedly connected to the movable seat 3. The conveying pipe 4 is connected to the sewage pipe for sewage pretreatment via a hose or the like. One end of the conveying pipe 4 inside the separation box 1 is inclined downward and faces the filter screen 10.

[0033] Wastewater enters the interior of the separation box 1 through the conveying pipe 4 and falls onto the filter screen 10. The filter screen 10 filters particulate impurities in the wastewater. Because the filter screen 10 is inclined and the end away from the sliding channel 2 is inclined downward, the particulate impurities are affected by their own gravity and roll towards the filter frame 9 and accumulate in the accumulation area, thereby preventing particulate impurities from accumulating on the filter screen 10, achieving rapid filtration and ensuring the efficiency of impurity separation.

[0034] As the movable seat 3 slides back and forth inside the sliding channel 2, it drives the conveying pipe 4 to move back and forth, ensuring that the wastewater entering the separation box 1 through the conveying pipe 4 falls evenly onto the filter screen 10, improving separation efficiency; at the same time, it ensures that the filter screen 10 is evenly subjected to the impact force of the water flow, extending the service life of the filter screen 10.

[0035] This utility model, by setting up a sliding channel 2, a movable seat 3, a conveying pipe 4 and other structures, prevents particulate impurities from accumulating on the filter screen 10, achieves rapid filtration, ensures the efficiency of impurity separation, and ensures that the sewage falls evenly on the filter screen 10. The filter screen 10 is evenly subjected to the impact force of the water flow, which extends the service life of the filter screen 10 and improves the efficiency of the impurity separation device.

[0036] In addition, the bottom of the separation tank 1 is connected to a water outlet pipe. After the impurities are separated, the sewage falls to the bottom of the separation tank 1 and is discharged through the water outlet pipe.

[0037] A round rod 13 is rotatably mounted on the separation box 1, and the round rod 13 is close to the second soft film 12. A swing bar 14 is fixedly connected to the round rod 13. The swing bar 14 abuts against the lower surface of the filter screen 10. The round rod 13 and the moving seat 3 are connected by a drive assembly.

[0038] In specific configuration and use, the drive assembly includes a reciprocating screw 7, a slide 8, an ear plate 19, a first pulley 15, a second pulley 16, and a belt 17. The reciprocating screw 7 is structured as two threaded grooves with the same pitch but opposite directions of rotation, with the two ends connected by a transition curve to form a closed helical groove. The ear plate 19 is fixedly connected to the outer wall of the separation box 1, and the reciprocating screw 7 is rotatably mounted on the ear plate 19. The slide 8 is fixedly connected to the movable seat 3 and cooperates with the reciprocating screw 7. The first pulley 15 is fixedly connected to the round rod 13, and the second pulley 16 is fixedly connected to the reciprocating screw 7. The first pulley 15 and the second pulley 16 are connected by the belt 17 for transmission.

[0039] The first pulley 15, the second pulley 16, and the belt 17 can also be replaced with gears, chains, etc., depending on the specific application.

[0040] A motor 18 is fixedly connected to the outer wall of the separation box 1. The motor 18 is connected to the factory's power supply, and the round rod 13 is fixedly connected to the drive shaft of the motor 18.

[0041] In actual use, the motor 18 drives the round rod 13 to rotate, and the round rod 13 drives the swing bar 14 to rotate. When the swing bar 14 contacts the filter screen 10, it will cause the filter screen 10 to swing upward. When the swing bar 14 is misaligned with the filter screen 10, under the action of the first soft sheet 11 and the second soft sheet 12, the filter screen 10 swings downward to reset, thereby making the filter screen 10 swing up and down, which accelerates the rolling of particulate impurities towards the filter frame 9.

[0042] At the same time, the round rod 13 drives the first pulley 15 to rotate. The first pulley 15 and the second pulley 16 are connected by the belt 17, so that the second pulley 16 drives the reciprocating screw 7 to rotate. The slide 8 drives the moving seat 3 to slide back and forth inside the sliding channel 2, which drives the conveying pipe 4 to move back and forth.

[0043] By setting up structures such as drive components, the filter screen 10 swings up and down when the conveying pipe 4 moves back and forth, which accelerates the rolling of particulate impurities toward the filter frame 9 and further improves the efficiency of the impurity separation device.

Claims

1. A wastewater pretreatment impurity separation device, characterized in that: Includes a separation box (1), and the interior of the separation box (1) is provided with a filter screen (10); A sliding channel (2) is provided on the side wall of the separation box (1). A movable seat (3) is slidably arranged inside the sliding channel (2). A conveying pipe (4) is fixedly connected to the movable seat (3). One end of the conveying pipe (4) inside the separation box (1) is inclined downward and faces the filter screen (10). A round rod (13) is rotatably mounted on the separation box (1), and a swing bar (14) is fixedly connected to the round rod (13). The swing bar (14) abuts against the lower surface of the filter screen (10). The round rod (13) and the movable seat (3) are connected by a drive assembly.

2. The impurity separation device for wastewater pretreatment according to claim 1, characterized in that: The filter (10) is inclined and the end away from the sliding channel (2) is inclined downward.

3. The impurity separation device for wastewater pretreatment according to claim 1, characterized in that: The drive assembly includes a reciprocating screw (7), a slide (8), and an ear plate (19). The ear plate (19) is fixedly connected to the outer wall of the separation box (1). The reciprocating screw (7) is rotatably mounted on the ear plate (19). The slide (8) is fixedly connected to the movable seat (3). The slide (8) cooperates with the reciprocating screw (7).

4. The impurity separation device for wastewater pretreatment according to claim 3, characterized in that: The drive assembly also includes a first pulley (15), a second pulley (16), and a belt (17). The first pulley (15) is fixedly connected to the round rod (13), and the second pulley (16) is fixedly connected to the reciprocating screw (7). The first pulley (15) and the second pulley (16) are connected by the belt (17).

5. The impurity separation device for wastewater pretreatment according to claim 1, characterized in that: A filter frame (9) is fixedly connected inside the separation box (1). The filter frame (9) is L-shaped. A first soft sheet (11) is fixedly connected to the top of the filter frame (9). The downward-sloping end of the filter screen (10) is fixedly connected to the first soft sheet (11). A second soft sheet (12) is fixedly connected to the end of the filter screen (10) away from the first soft sheet (11). The second soft sheet (12) is fixedly connected to the inner wall of the separation box (1).

6. The impurity separation device for wastewater pretreatment according to claim 1, characterized in that: The bottom end of the sliding channel (2) is provided with a sliding groove (5), and a slider (6) is slidably arranged inside the sliding groove (5). The slider (6) is fixedly connected to the movable seat (3).

7. The impurity separation device for wastewater pretreatment according to claim 1, characterized in that: A motor (18) is fixedly connected to the outer wall of the separation box (1), and the round rod (13) is fixedly connected to the drive shaft of the motor (18).

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