Vortex desilting basin for purifying sewage

Abstract

The utility model discloses a vortex desilting basin for purifying sewage, which comprises a desilting basin body, a water inlet pipe, a drain pipe and a sand discharge pipe, the top of the desilting basin is provided with a top plate, one side of the top plate close to the water inlet pipe is provided with a mounting groove, the mounting groove is fixedly provided with mounting racks, two transmission rods are rotatably connected between the two mounting racks, and the two transmission rods are connected with the water inlet pipe. Chain wheels are fixedly connected to the two ends of the transmission rod, a chain is meshed between the two chain wheels located on the same side in the vertical direction, a plurality of filter cartridges are horizontally arranged on the two chains jointly, the filter cartridges are continuously arranged, and when the filter cartridges move to one side of the water inlet pipe, the filter cartridges are separated from the water inlet pipe. And the opening end of the filter cartridge is attached to the inner wall of the grit chamber body. According to the utility model, the plurality of filter cartridges are densely distributed on the vertically arranged chain type conveyor belt, so that fibers, aquatic plants and other impurities easy to wind in sewage are intercepted and filtered, the impurities are prevented from being wound on the stirring paddle, and the sewage treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vortex grit chambers, in particular to a vortex grit chamber for purifying sewage. Background Art

[0002] With the acceleration of urbanization and the continuous development of industrialization, sewage treatment has become an indispensable and important part of environmental protection. In traditional sewage treatment processes, cyclone grit chambers, as an important pretreatment device, are widely used to remove suspended matter and grit from sewage, thereby reducing the burden on subsequent treatment processes. However, in actual operation, traditional cyclone grit chambers have the problem of fibrous objects, aquatic plants, and other debris easily entangled on the agitator paddles. This not only affects the normal operation of the equipment, but also increases maintenance costs and time, reducing overall treatment efficiency.

[0003] A search revealed a Chinese utility model patent with publication number CN220597127U, which discloses a cyclone grit chamber for sewage treatment. The patent includes a grit chamber body with fixed plates fixedly connected to both sides of the body, and synchronized electric hydraulic push rods fixedly connected to the tops of the two fixed plates. This patent utilizes a threaded barrel to drive an agitator paddle upward, lifting it out of the grit chamber body for cleaning and maintenance. This forces operators to regularly shut down the machine for cleaning, severely impacting treatment efficiency and operational continuity. Utility Model Content

[0004] In view of the above-mentioned prior art, the present invention provides a vortex sedimentation tank for purifying sewage, and the main technical problem to be solved is how to prevent debris from being entangled on the stirring paddle and improve the efficiency of sewage treatment.

[0005] To achieve the above-mentioned purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0006] A vortex grit chamber for purifying sewage comprises a grit chamber body, wherein the grit chamber body is connected with a water inlet pipe, a drain pipe and a grit discharge pipe, a top plate is provided on the top of the grit chamber, a stirring motor and a stirring part are fixedly installed at the center of the top plate, a mounting groove is provided on the side of the top plate close to the water inlet pipe, a mounting frame is fixedly installed on the mounting groove, two transmission rods are rotatably connected between the two mounting frames, sprockets are fixedly connected at both ends of the transmission rods, a chain is meshed between two sprockets located on the same side in the vertical direction, a plurality of filter cartridges are horizontally arranged on the two chains, and the plurality of filter cartridges are arranged continuously. When the filter cartridge moves to the side of the water inlet pipe, the open end of the filter cartridge is in contact with the inner wall of the grit chamber body.

[0007] Furthermore, the filter cartridge includes three concave filter side plates, the top of the filter side plates is fixedly connected to a guide plate, the filter side plates are fixedly connected to one end close to the chain, and the filter bottom plate is fixedly mounted on the chain.

[0008] Furthermore, the filter cartridge is tilted upward at one end close to the water inlet pipe.

[0009] Furthermore, a slag collecting box is installed at one end of the mounting frame away from the water inlet pipe, and a filter hole is provided at the bottom of the slag collecting box.

[0010] Furthermore, a water pump is fixedly installed on the top plate, the water pump is connected to a water suction pipe and a water spray pipe, the water suction pipe extends into the sand settling tank body, the water spray pipe is installed between two mounting frames, and a number of high-pressure nozzles are evenly distributed on the water spray pipe, and a number of high-pressure nozzles are directed towards the slag collecting box.

[0011] Furthermore, a drive motor is fixedly mounted on the mounting frame, and an output shaft of the drive motor is fixedly connected to one of the transmission rods.

[0012] Furthermore, an elastic sheet is provided on the filter side plate opposite to the guide plate, and the elastic sheet contacts and contacts the inner wall of the grit chamber body.

[0013] The beneficial effects of the present invention are:

[0014] 1. Multiple filter cartridges are densely distributed on the vertically arranged chain conveyor belt to intercept and filter out fibers, water plants and other easily entangled debris in the sewage, prevent the debris from entangled on the stirring paddle, and improve the efficiency of sewage treatment;

[0015] 2. By extracting the sewage from the sewage pool to backwash the filter cartridge, the debris falls into the slag collecting box, which can effectively remove the debris attached to it and realize automatic collection of the debris. The sewage generated by cleaning re-enters the grit chamber through the filter hole at the bottom of the filter box, saving water resources.

[0016] 3. By setting three sides of the filter cartridge as filter side plates and one side as a guide plate, when water is entering, the guide plate is located at the upper end and does not affect the water inflow. When flushing the filter cartridge, the guide plate is located at the lower end, making it easier for debris to flow into the slag collecting box through the guide plate.

[0017] 4. The filter cartridge is tilted upward near one end of the water inlet pipe. When the filter cartridge moves away from the water inlet pipe, the filter cartridge tilts downward, so that impurities are collected into the slag collecting box under the action of gravity and the water spray pipe, and the collection effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a vortex grit chamber for purifying sewage in Example 1 of the present application;

[0019] Figure 2This is a schematic cross-sectional view of a vortex grit chamber for purifying sewage in Example 1 of the present application;

[0020] Figure 3 This is a schematic diagram of the filter cartridge structure of a vortex grit chamber for purifying sewage in Example 1 of the present application;

[0021] Figure 4 This is a structural schematic diagram of the connection relationship between the filter cartridge of a vortex grit chamber for purifying sewage and the inner wall of the grit chamber body in Example 2 of the present application.

[0022] Description of Figure Numbers:

[0023] 1. Grit chamber body; 2. Water inlet pipe; 3. Drain pipe; 4. Sand discharge pipe; 5. Top plate; 6. Stirring motor; 7. Stirring unit; 8. Mounting slot; 9. Mounting frame; 10. Transmission rod; 11. Sprocket; 12. Chain; 13. Filter cartridge; 131. Filter side plate; 132. Guide plate; 133. Filter bottom plate; 134. Elastic sheet; 14. Slag box; 15. Water pump; 16. Water pipe; 17. Water spray pipe; 18. High-pressure nozzle; 19. Drive motor. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the technical solution of the present invention in conjunction with the accompanying drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. In the following description, reference is made to "some embodiments", which describes a subset of all possible embodiments, but it should be understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

[0025] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0026] Example 1

[0027] Refer to the attached Figure 1-3The present application provides a vortex grit chamber for purifying sewage, including a grit chamber body 1, a water inlet pipe 2 connected to the top side wall of the grit chamber body 1, a drain pipe 3 connected to the middle of the grit chamber body 1, a sand discharge pipe 4 connected to the bottom of the grit chamber body 1, a top plate 5 is provided on the top of the grit chamber, a stirring motor 6 is fixedly installed at the center of the top plate 5, and the output shaft of the stirring motor 6 is fixedly connected to a stirring part 7.

[0028] A mounting groove 8 is provided on the top plate 5 near the water inlet pipe 2, and a mounting bracket 9 is fixedly installed on the mounting groove 8. Part of the mounting bracket 9 extends into the grit chamber body 1, and part is located outside the grit chamber body 1. The part located inside the grit chamber body 1 is a hollow design to facilitate water flow through. A driving motor 19 is fixedly installed on one of the mounting brackets 9, and two transmission rods 10 are rotatably connected between the two mounting brackets 9. The two transmission rods 10 are respectively located at the upper and lower ends of the mounting bracket 9. The output shaft of the driving motor 19 is fixedly connected to a transmission rod 10 located at the upper end, and a sprocket 11 is fixedly connected to both ends of the transmission rod 10. A chain 12 is engaged between the two sprockets 11 on the same side in the vertical direction. A number of filter cartridges 13 are horizontally arranged on the two chains 12, and the filter cartridges 13 are arranged continuously. When the filter cartridge 13 moves to the side of the water inlet pipe 2, the open end of the filter cartridge 13 is attached to the inner wall of the grit chamber body 1.

[0029] The filter cartridge 13 is tilted upward at one end close to the water inlet pipe 2. The filter cartridge 13 includes a filter side plate 131 with three concave sides. The top of the filter side plate 131 is fixedly connected to a guide plate 132. The end of the filter side plate 131 close to the chain 12 is fixedly connected to a filter bottom plate 133. The filter bottom plate 133 is fixedly installed on the chain 12.

[0030] A slag collecting box 14 is installed at one end of the mounting frame 9 away from the water inlet pipe 2. A filter hole is provided at the bottom of the slag collecting box 14. The slag collecting box 14 is mounted on the mounting groove 8. A water pump 15 is fixedly installed on the top plate 5. The water pump 15 is connected to a water suction pipe 16 and a water spray pipe 17. The water suction pipe 16 extends into the grit chamber body 1. The water spray pipe 17 is installed between the two mounting frames 9. A number of high-pressure nozzles 18 are evenly distributed on the water spray pipe 17, and the number of high-pressure nozzles 18 are facing the slag collecting box 14.

[0031] Working principle:

[0032] The filter cartridge 13 at the end of the water inlet pipe 2 is attached to the inner wall of the grit chamber body 1. The three filter side plates 131 of the filter cartridge 13 filter the debris in the sewage, and the filtered sewage enters the grit chamber. The driving motor 19 drives the transmission rod 10 to rotate, so that the transmission rod 10 drives the sprocket 11 to rotate, and the sprocket 11 drives the chain 12 engaged therewith to rotate. The filter cartridge 13 fixedly mounted on the chain 12 rotates counterclockwise. When it rotates away from one end of the water inlet pipe 2, the three filter side plates 131 are located at the upper end and the guide plate 132 is located at the lower end. The water pump 15 is started to pump the water in the grit chamber to the spray pipe 17. The water in the spray pipe 17 is sprayed to the filter cartridge 13 through the high-pressure nozzle 18. The impurities on the filter cartridge 13 are collected in the slag collecting box 14 under the action of gravity and the impact of the water flow, so as to avoid the entanglement of debris on the stirring paddle and improve the efficiency of sewage treatment.

[0033] Example 2

[0034] Refer to the attached Figure 4 The present application provides a vortex grit chamber for purifying sewage. Compared with Example 1, in order to improve the filtering effect, an elastic sheet 134 is provided on the filter side plate 131 opposite to the guide plate 132. The elastic sheet 134 is in contact with the inner wall of the grit chamber body 1. The elastic sheet 134 is made of a material with a certain elasticity, such as rubber or elastic plastic. Even if there are slight unevennesses on the inner wall of the grit chamber, the filter cartridge 13 can fit tightly through its elastic deformation to ensure the filtering effect.

[0035] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. The scope of protection of the present utility model should be based on the scope of protection of the claims.

Claims

1. A vortex grit chamber for purifying sewage, comprising a grit chamber body (1), wherein the grit chamber body (1) is connected to a water inlet pipe (2), a drain pipe (3) and a sand discharge pipe (4), a top plate (5) is provided on the top of the grit chamber, and a stirring motor (6) and a stirring part (7) are fixedly installed at the center of the top plate (5), characterized in that: The top plate (5) is provided with a mounting groove (8) on one side close to the water inlet pipe (2), a mounting frame (9) is fixedly mounted on the mounting groove (8), two transmission rods (10) are rotatably connected between the two mounting frames (9), sprockets (11) are fixedly connected at both ends of the transmission rod (10), a chain (12) is engaged between the two sprockets (11) located on the same side in the vertical direction, and a plurality of filter cartridges (13) are horizontally arranged on the two chains (12), and the plurality of filter cartridges (13) are arranged in a continuous manner. When the filter cartridge (13) moves to the side of the water inlet pipe (2), the open end of the filter cartridge (13) is in contact with the inner wall of the grit chamber body (1).

2. A vortex grit chamber for purifying sewage according to claim 1, characterized in that: The filter cartridge (13) comprises a filter side plate (131) with three concave surfaces, a guide plate (132) being fixedly connected to the top of the filter side plate (131), a filter bottom plate (133) being fixedly connected to one end of the filter side plate (131) close to the chain (12), and the filter bottom plate (133) being fixedly mounted on the chain (12).

3. A vortex grit chamber for purifying sewage according to claim 1, characterized in that: The filter cartridge (13) is inclined upwards at one end close to the water inlet pipe (2).

4. A vortex grit chamber for purifying sewage according to claim 1, characterized in that: A slag collecting box (14) is installed at one end of the mounting frame (9) away from the water inlet pipe (2), and a filter hole is provided at the bottom of the slag collecting box (14).

5. A vortex grit chamber for purifying sewage according to claim 4, characterized in that: A water pump (15) is fixedly mounted on the top plate (5), the water pump (15) is connected to a water pump pipe (16) and a water spray pipe (17), the water pump pipe (16) extends into the grit chamber body (1), the water spray pipe (17) is mounted between the two mounting frames (9), and a plurality of high-pressure nozzles (18) are evenly distributed on the water spray pipe (17), and the plurality of high-pressure nozzles (18) face the slag collecting box (14).

6. A vortex grit chamber for purifying sewage according to claim 1, characterized in that: A driving motor (19) is fixedly mounted on the mounting frame (9), and an output shaft of the driving motor (19) is fixedly connected to one of the transmission rods (10).

7. A vortex grit chamber for purifying sewage according to claim 2, characterized in that: An elastic sheet (134) is provided on the filtering side plate (131) opposite to the guide plate (132), and the elastic sheet (134) contacts and contacts the inner wall of the grit chamber body (1).

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