Aerated grit chamber used for industrial sewage treatment and capable of preventing sediment deposition

Abstract

The utility model discloses an industrial sewage treatment aeration grit chamber capable of preventing sediment deposition, which comprises a chamber body, the chamber body is of a rectangular structure with an opening on the side surface, an air pipe is arranged on the inner wall of one side of the chamber body, an aerator is arranged on the surface of the air pipe, and the aerator is communicated with the air pipe. A plurality of air pipes and aerators are arranged on the inner wall of one side of the pool body in parallel, a sand collecting groove is formed in the lower surface of the interior of the pool body, and the section of the sand collecting groove is trapezoidal. According to the industrial sewage treatment aerated grit chamber capable of preventing sediment deposition, the inner wall of the grit collecting tank is provided with a grit scraping plate, the two sides of the grit scraping plate are both provided with connecting ropes, the first connecting rope on one side is driven by an impeller and drives the grit scraping plate to move towards the water outlet section when the device operates, and the second connecting rope on the other side is driven by a gear and drives the grit scraping plate to move towards the water outlet section when the device operates. When the device discharges sand, the sand scraping plate is driven to move towards the water inlet section, and reciprocating motion of the sand scraping plate in the sand collecting groove is achieved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an aerated grit chamber for industrial wastewater treatment that prevents silt deposition. Background Technology

[0002] Grit chambers are a crucial component of industrial wastewater treatment, designed to remove coarse particles such as silt and sand from wastewater. This protects pipes, valves, and other facilities from wear and blockage. Aerated grit chambers, compared to ordinary grit chambers, can remove organic pollutants from the sediment, reducing the difficulty of subsequent treatment. Furthermore, aeration in the water deodorizes, improves water quality, and facilitates further treatment. Therefore, aerated grit chambers are widely used.

[0003] The current aerated grit chambers do not have a cleaning structure for collecting sand troughs. The settled silt tends to accumulate at the bottom of the sand trough, forming dead corners, which can easily cause foul odors and affect the use of the grit chambers. Utility Model Content

[0004] The purpose of this invention is to provide an aerated grit chamber for industrial wastewater treatment that prevents sediment deposition. This device has a reciprocating scraper plate installed on the inner wall of the grit collection tank to clean the grit collection tank, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an aerated grit chamber for industrial wastewater treatment to prevent sediment deposition, comprising a tank body, the tank body being a rectangular structure with side openings, an air pipe provided on one inner wall of the tank body, an aerator provided on the surface of the air pipe, and multiple air pipes and aerators arranged parallel to each other on one inner wall of the tank body, a sand collection trough provided on the lower inner surface of the tank body, the sand collection trough having a trapezoidal cross-section, an inlet provided on one side surface of the tank body, a sand discharge port provided on the lower surface of the sand collection trough, the sand discharge port penetrating the lower surface of the tank body, a valve provided on the surface of the sand discharge port to control its opening and closing, and a sand scraping structure provided on the inner wall of the sand collection trough, the sand scraping structure utilizing the reciprocating motion of the sand scraper to achieve the effect of preventing sediment accumulation on the inner wall of the sand collection trough.

[0006] Preferably, the sand-scraping structure includes a sand-scraping plate, which is slidably connected to the upper surface of the sand-collecting trough. A connecting rope is provided on one side of the sand-scraping plate. A cylinder is provided on the inner wall of the outlet section of the pool. An impeller is rotatably provided inside the cylinder. An inlet and an outlet are provided on the surface of the cylinder. A one-way valve is provided at the outlet of the cylinder, and the flow direction of the one-way valve is from the cylinder to the outside. Impellers are symmetrically arranged on the inner walls of both sides of the pool. A connecting rod is connected between the two impellers. One end of the connecting rope is connected to the surface of the connecting rod. A second connecting rope is provided on the other side of the sand-scraping plate.

[0007] Using the above technical solution, the scraper moves back and forth on the inner wall of the sand collection trough to clean the inner wall of the sand collection trough and prevent the accumulation of mud and sand from affecting the operation of the device.

[0008] Preferably, the sand discharge port is provided with an anti-clogging structure inside. The anti-clogging structure uses the force generated during sand discharge to drive the fan blades to rotate and disperse the mud and sand in the sand discharge port, thereby preventing the sand discharge port from becoming blocked.

[0009] By adopting the above technical solution, the fan blades disperse the mud and sand during the sand discharge process to prevent the sand discharge port from becoming blocked.

[0010] Preferably, the anti-clogging structure includes a rotating shaft, which is rotatably mounted on the inner wall of the sand discharge port via a bracket. The outer surface of the rotating shaft is provided with fan blades and a second connecting rod is provided on the outer surface of the rotating shaft. The second connecting rod passes through the surface of the sand discharge port and is connected to a rotating wheel. The outer surface of the rotating wheel is provided with tooth blocks, and a gear is provided on one side of the rotating wheel. The gear is rotatably mounted inside the pool body and meshes with the tooth blocks on the outer surface of the rotating wheel. A drum is provided on the surface of the gear, and a second connecting rope on one side of the sand scraper is connected to the surface of the drum.

[0011] When the above technical solution is adopted, when the valve is opened to discharge sand from the device, the sand-water mixture pushes the fan blades to rotate from above, breaking up the mud and sand and preventing the device from getting blocked during the sand discharge process.

[0012] Preferably, the upper surface of the pool is provided with a closed structure, which uses a baffle to seal the upper surface of the pool to prevent odor from escaping during the sewage treatment process.

[0013] The above technical solution is used to prevent odor from escaping during device operation by using a closed structure.

[0014] Preferably, the enclosed structure includes a baffle one, one side of which is installed on the upper surface of the pool body and is a telescopic structure. A push plate is provided on the lower surface of the other side of the baffle one, and the push plate is located inside the pool body. A baffle two is provided on one side of the baffle one, and the baffle two wraps around the outer surface of the air pipe to seal it. The baffle one and the baffle two work together to create a sealing effect on the upper surface of the pool body.

[0015] Using the above technical solution, when the device is in operation and settling sediment, the flow of sewage pushes the push plate to move, and the push plate drives the baffle to cover the top of the pool to prevent odor from overflowing.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the aerated grit chamber for industrial wastewater treatment that prevents silt deposition:

[0017] 1. This device is equipped with a scraper plate on the inner wall of the sand collection tank. Connecting ropes are installed on both sides of the scraper plate. One of the connecting ropes on one side is driven by the impeller, which drives the scraper plate to move towards the water outlet section when the device is running. The other connecting rope is driven by the gear, which drives the scraper plate to move towards the water inlet section when the device discharges sand, thus realizing the reciprocating motion of the scraper plate in the sand collection tank.

[0018] 2. This device has a rotating shaft inside the sand discharge port, and fan blades are installed on the surface of the rotating shaft. When the valve at the sand discharge port is opened to discharge sand, the sand-water mixture is discharged from the sand discharge port, which drives the fan blades to rotate. The rotating fan blades disperse the mud and sand in the sand discharge port and prevent the sand discharge port from being blocked.

[0019] 3. This device has a retractable baffle on the upper surface of the pool and a push plate on the lower surface of the baffle. When the device is running, the sewage pushes the push plate, which in turn causes the baffle to extend towards the outlet section of the device, blocking the top of the pool and preventing odor from overflowing. Attached Figure Description

[0020] Figure 1 This is a top view of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the front section structure of this utility model;

[0022] Figure 3 This is a top view schematic diagram of the rotating wheel and gear structure of this utility model;

[0023] Figure 4 This is a side view of the structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the baffle structure from one side;

[0025] Figure 6 This is a top view schematic diagram of the structure of baffle one and baffle two of this utility model.

[0026] In the diagram: 1. Pool body; 2. Air pipe; 3. Aerator; 4. Sand collection trough; 5. Water inlet; 6. Sand discharge port; 7. Scraper; 8. Connecting rope one; 9. Cylinder; 10. Impeller; 11. Check valve; 12. Connecting rod one; 13. Connecting rope two; 14. Shaft; 15. Fan blade; 16. Connecting rod two; 17. Rotary wheel; 18. Gear; 19. Drum; 20. Baffle one; 21. Baffle two; 22. Push plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-6 This utility model provides a technical solution: an aerated grit chamber for industrial wastewater treatment to prevent sediment deposition, comprising a chamber body 1, an air pipe 2, an aerator 3, a sand collection trough 4, a water inlet 5, a sand discharge outlet 6, a scraper 7, a connecting rope 1 8, a cylinder 9, an impeller 10, a one-way valve 11, a connecting rod 12, a connecting rope 2 13, a rotating shaft 14, a fan blade 15, a connecting rod 2 16, a rotating wheel 17, a gear 18, a drum 19, a baffle 1 20, a baffle 2 21, and a pusher 22.

[0029] This device has the effect of preventing odor from escaping, specifically:

[0030] The pool body 1 is a rectangular structure with an opening on one side. An air pipe 2 is installed on the inner wall of one side of the pool body 1. An aerator 3 is installed on the surface of the air pipe 2. Multiple air pipes 2 and aerators 3 are installed in parallel on the inner wall of one side of the pool body 1. A sand collection trough 4 is installed on the lower inner surface of the pool body 1. The cross-section of the sand collection trough 4 is trapezoidal. A water inlet 5 is installed on one side of the surface of the pool body 1. One side of the baffle 20 is installed on the upper surface of the pool body 1. The baffle 20 is a telescopic structure. A push plate 22 is installed on the lower surface of the other side of the baffle 20. The push plate 22 is located inside the pool body 1. A baffle 21 is installed on one side of the baffle 20. The baffle 21 wraps around the outer surface of the air pipe 2 to seal it. The baffle 20 and the baffle 21 work together to seal the upper surface of the pool body 1.

[0031] like Figure 1 Wastewater flows into tank 1 through inlet 5. Aerator 3 on the right side of tank 1 is activated. Aerator 3 draws air into the interior of tank 1 through air pipe 2, forming bubbles that are then discharged into the wastewater. Figure 2 Bubbles are ejected from the right side of tank 1, exerting a leftward force on the wastewater inside tank 1, causing the wastewater to swirl within the tank. Sand particles in the wastewater are thrown outwards by centrifugal force and sink into the sand collection tank 4. The upper layer of wastewater, free of sand particles, enters the next step in the wastewater treatment process through an opening at the other end of tank 1. Figure 5 As the sewage flows from the left side to the right side of the tank 1, the water flow pushes the pusher plate 22 to the right. The pusher plate 22's movement to the right causes the baffle plate 20 to move to the right and extend, blocking the upper surface of the tank 1. Figure 6The elongated baffle 1 20 and baffle 2 21 work together to seal the upper surface of the pool 1, preventing odor from escaping during the sewage treatment process.

[0032] This device has the effect of preventing sand discharge blockage, specifically:

[0033] A sand discharge port 6 is provided on the lower surface of the sand collection tank 4, and the sand discharge port 6 penetrates the lower surface of the tank body 1. A valve is provided on the surface of the sand discharge port 6 to control its opening and closing. A rotating shaft 14 is rotatably installed on the inner wall of the sand discharge port 6 via a bracket. A fan blade 15 is provided on the outer surface of the rotating shaft 14. A connecting rod 16 is provided on the outer surface of the rotating shaft 14. A rotating wheel 17 is connected to the connecting rod 16 through the surface of the sand discharge port 6. A toothed block is provided on the outer surface of the rotating wheel 17. A gear 18 is provided on one side of the rotating wheel 17, and the gear 18 is rotatably installed inside the tank body 1. The gear 18 meshes with the toothed block on the outer surface of the rotating wheel 17. A drum 19 is provided on the surface of the gear 18. A connecting rope 13 on one side of the sand scraper 7 is connected to the surface of the drum 19.

[0034] like Figure 2 After the device stops operating, the valve at the sand discharge port 6 is activated, and an external sand suction pump sucks the mud and sand in the sand collection tank 4 out of the device. When the sand-water mixture moves downward from above, the mixture exerts a force on the fan blade 15, causing it to rotate. The rotating fan blade 15 disperses the mud and sand, preventing blockage of the sand discharge port 6 during the sand discharge process. At the same time, the fan blade 15 drives the rotating shaft 14 to rotate. Figure 4 The rotation of shaft 14 drives the second connecting rod 16 to rotate, which in turn drives the rotating wheel 17 to rotate. The rotation of the rotating wheel 17 drives the gears 18 on both sides to rotate, which in turn drives the drum 19 to rotate. The rotation of the drum 19 causes the second connecting rope 13 to wind around its surface. Figure 1 The connecting rope 13 drives the scraper 7 to move downwards, that is, the scraper 7 moves downwards when the device discharges sand.

[0035] This device has the effect of preventing the accumulation of silt and sand, specifically:

[0036] The scraper 7 is slidably connected to the upper surface of the sand collection tank 4. A connecting rope 8 is provided on one side of the scraper 7. A cylinder 9 is provided on the inner wall of the outlet section of the pool body 1. An impeller 10 is rotatably provided inside the cylinder 9. An inlet and an outlet are provided on the surface of the cylinder 9. A one-way valve 11 is provided at the outlet of the cylinder 9, and the flow direction of the one-way valve 11 is from the cylinder 9 to the outside. Impellers 10 are symmetrically provided on the inner walls of both sides of the pool body 1. A connecting rod 12 is connected between the two impellers 10. One end of the connecting rope 8 is connected to the surface of the connecting rod 12. A connecting rope 2 13 is provided on the other side of the scraper 7.

[0037] like Figure 4During operation, wastewater flows from the left side to the right side of tank 1. When the wastewater flows through cylinder 9, it enters from the inlet on the left side of cylinder 9, driving impeller 10 to rotate clockwise, and flows out through one-way valve 11 at the outlet. Figure 1 The impellers 10 on both sides rotate, causing the connecting rod 12 to rotate. The rotation of the connecting rod 12 causes the connecting rope 8 to wrap around the surface of the connecting rod 12. The connecting rope 8 drives the scraper 7 to move upward. That is, the scraper 7 moves upward during the operation of the device. After the device stops, the scraper 7 moves downward, realizing the reciprocating motion of the scraper 7 in the sand collection trough 4, scraping the mud and sand on the inner wall of the sand collection trough 4 to prevent accumulation.

[0038] Working principle: When using this aerated grit chamber for industrial wastewater treatment to prevent sediment deposition, wastewater flows into the tank 1 from the inlet 5. The aerator 3 is activated, causing the wastewater to swirl within the tank 1. Sand particles in the wastewater settle into the grit collection trough 4 under centrifugal force. The upper layer of wastewater without sand particles is discharged from the opening at the other end of the tank 1. During operation, the water flow pushes the push plate 22, causing the baffle 20 to extend and cover the upper surface of the tank 1, preventing odor from escaping during wastewater treatment. Rotating fan blades 15 are installed inside the grit discharge port 6 to disperse the sediment and prevent it from clogging the discharge port 6. A scraper 7 is slidably installed on the inner wall of the grit collection trough 4. The scraper 7 is driven by connecting ropes 8 and 13 on both sides, reciprocating on the inner wall of the grit collection trough 4 to prevent sediment from depositing on the inner wall of the grit collection trough 4, thus increasing the overall practicality.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aerated grit chamber for industrial wastewater treatment to prevent sediment deposition, comprising a tank body (1), wherein the tank body (1) is a rectangular structure with an open side, an air pipe (2) is provided on one inner wall of the tank body (1), an aerator (3) is provided on the surface of the air pipe (2), and multiple air pipes (2) and aerators (3) are arranged parallel to each other on one inner wall of the tank body (1), a sand collection trough (4) is provided on the lower inner surface of the tank body (1), the cross-section of the sand collection trough (4) is trapezoidal, an inlet (5) is provided on one side surface of the tank body (1), a sand discharge port (6) is provided on the lower surface of the sand collection trough (4), and the sand discharge port (6) penetrates the lower surface of the tank body (1), and a valve is provided on the surface of the sand discharge port (6) to control its opening and closing, characterized in that: The inner wall of the sand collection trough (4) is provided with a sand scraping structure. The sand scraping structure uses the reciprocating motion of the sand scraping plate (7) to prevent mud and sand from accumulating on the inner wall of the sand collection trough (4).

2. The aerated grit chamber for industrial wastewater treatment to prevent sediment deposition according to claim 1, characterized in that: The sand scraping structure includes a sand scraper (7), which is slidably connected to the upper surface of the sand collection trough (4). A connecting rope (8) is provided on one side of the sand scraper (7). A cylinder (9) is provided on the inner wall of the outlet section of the pool body (1). An impeller (10) is rotatably provided inside the cylinder (9). An inlet and an outlet are provided on the surface of the cylinder (9). A one-way valve (11) is provided at the outlet of the cylinder (9), and the flow direction of the one-way valve (11) is from the cylinder (9) to the outside. Impellers (10) are symmetrically provided on the inner walls of both sides of the pool body (1). A connecting rod (12) is connected between the two impellers (10). One end of the connecting rope (8) is connected to the surface of the connecting rod (12). A connecting rope (13) is provided on the other side of the sand scraper (7).

3. An aerated grit chamber for industrial wastewater treatment to prevent sediment deposition as described in claim 1, characterized in that: The sand discharge port (6) is equipped with an anti-blocking structure. The anti-blocking structure uses the force generated during sand discharge to drive the fan blade (15) to rotate and disperse the mud and sand in the sand discharge port (6) to prevent the sand discharge port (6) from being blocked.

4. An aerated grit chamber for industrial wastewater treatment to prevent sediment deposition as described in claim 3, characterized in that: The anti-clogging structure includes a rotating shaft (14), which is rotatably mounted on the inner wall of the sand discharge port (6) via a bracket. The outer surface of the rotating shaft (14) is provided with a fan blade (15), and the outer surface of the rotating shaft (14) is provided with a connecting rod (16). The connecting rod (16) passes through the surface of the sand discharge port (6) and is connected to a rotating wheel (17). The outer surface of the rotating wheel (17) is provided with a tooth block, and a gear (18) is provided on one side of the rotating wheel (17). The gear (18) is rotatably mounted inside the pool body (1). The gear (18) meshes with the tooth block on the outer surface of the rotating wheel (17). A drum (19) is provided on the surface of the gear (18), and a connecting rope (13) on one side of the sand scraper (7) is connected to the surface of the drum (19).

5. An aerated grit chamber for industrial wastewater treatment to prevent sediment deposition according to claim 1, characterized in that: The upper surface of the pool body (1) is provided with a closed structure. The closed structure uses a baffle (20) to seal the upper surface of the pool body (1) and prevent odor from overflowing during the sewage treatment process.

6. An aerated grit chamber for industrial wastewater treatment to prevent sediment deposition according to claim 5, characterized in that: The closed structure includes a baffle (20), one side of which is installed on the upper surface of the pool body (1) and the baffle (20) is a telescopic structure. A push plate (22) is provided on the lower surface of the other side of the baffle (20). The push plate (22) is located inside the pool body (1). A baffle (21) is provided on one side of the baffle (20). The baffle (21) wraps around the outer surface of the air pipe (2) to seal it. The baffle (20) and the baffle (21) work together to seal the upper surface of the pool body (1).

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