A sand removal device for sewage pretreatment

Abstract

The utility model discloses a sand precipitation device for sewage pretreatment. The utility model discloses a box body, both sides of the inside of box body are equipped with grating, one side of the inside of box body is equipped with conical pool, the bottom of conical pool is equipped with downspout, one side of downspout is equipped with electric valve and flow velocity detector, one side of the inside of downspout is equipped with buffer structure, the top of box body is equipped with motor no.

Description

Technical Field

[0001] This utility model relates to the field of wastewater pretreatment technology, specifically to a sedimentation device for wastewater pretreatment. Background Technology

[0002] Sedimentation is an important step in wastewater pretreatment. It is mainly used to remove easily settling inorganic particles such as sand and gravel from wastewater to protect subsequent treatment equipment from wear and prevent clogging.

[0003] When using existing sedimentation devices for wastewater pretreatment, due to the varying sand content in the wastewater, it is impossible to adaptively treat the sediment in the wastewater based on the amount of sand present. Utility Model Content

[0004] The purpose of this invention is to provide a sedimentation device for wastewater pretreatment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a housing, with grilles on both sides inside the housing, a conical pool on one side inside the housing, a drain pipe at the bottom of the conical pool, an electric valve and a flow rate detector on one side of the drain pipe, a buffer structure on one side inside the drain pipe, a motor at the top of the housing, an output end of the motor extending into the housing and connected to a rotating rod, the other end of the rotating rod penetrating the grille and extending into the conical pool, a cleaning brush on the side of the rotating rod at the top of the grille, a stirring blade on the side of the rotating rod inside the conical pool, a connecting column at the bottom of the housing, a second motor at the bottom of the housing, an output end of the second motor penetrating the connecting column and connected to a sedimentation tank, and a filter bucket at the top of the sedimentation tank.

[0006] Preferably, the buffer structure includes multiple sets of mounting plates, each mounting plate has a connecting rod rotatably mounted on one side, each connecting rod has a buffer plate on one side, and each mounting plate has a spring on one side, with the other end of the spring connected to the buffer plate.

[0007] Preferably, a motor is provided on one side of the box, a sand outlet pipe is provided on one side inside the box, the other end of the sand outlet pipe extends to the outside of the box, the output end of the motor extends into the inside of the box and is connected to an auger, the other end of the auger passes through a connecting column and extends to the outside of the box, the auger is located inside the sand outlet pipe, an inclined plate is provided on one side inside the sand settling tank, a sand drop hole is provided on one side of the inclined plate, and a through hole is provided on the sand drop hole of the sand outlet pipe.

[0008] Preferably, a fan frame is provided on one side of the housing, an air duct is provided at the top of the fan frame, the other end of the air duct is connected to the housing, a fan is provided on one side of the fan frame, and an activated carbon filter is provided on one side inside the fan frame.

[0009] Preferably, a collection box is slidably provided on one side of the box body, and a filter hole is provided at the bottom of the collection box.

[0010] Preferably, a drain pipe is provided on one side of the box, and a sewage inlet pipe is provided on the front of the box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] Wastewater containing sand falls onto the mounting plate, where a buffer plate is connected to a spring. The spring provides resistance. Wastewater with a high sand content has a large mass, strong impact force, and fast falling speed. When impacting the buffer plate, the resistance provided by the buffer plate is less obstructive to the large mass of wastewater. The flow rate is detected by a flow detector to determine the sand content in the wastewater. Based on the detected flow rate, the centrifugal speed of motor 2 is adaptively adjusted to perform centrifugal separation. The adaptive adjustment of the centrifugal speed according to the sand content improves the efficiency and effectiveness of sand separation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a sedimentation device for wastewater pretreatment according to the present invention;

[0014] Figure 2 This is a schematic cross-sectional view of the overall structure of a sedimentation device for wastewater pretreatment according to this utility model;

[0015] Figure 3 This is a schematic diagram of the sedimentation tank structure of a sedimentation device for wastewater pretreatment according to this utility model;

[0016] Figure 4 This is a schematic diagram of the buffer structure of a sedimentation device for wastewater pretreatment according to the present invention.

[0017] In the diagram: 1. Box body; 2. Grille; 3. Conical pool; 4. Downpipe; 5. Electric valve; 6. Flow rate detector; 7. Buffer structure; 8. Motor 1; 9. Rotating rod; 10. Stirring blade; 11. Cleaning brush; 12. Connecting column; 13. Motor 2; 14. Sedimentation tank; 15. Filter tank; 16. Motor 3; 17. Screw conveyor; 18. Inclined plate; 19. Sand discharge hole; 20. Drain pipe; 21. Air frame; 22. Air duct; 23. Fan; 24. Activated carbon filter screen; 25. Collection box; 26. Sewage inlet pipe; 27. Sand outlet pipe; 71. Mounting plate; 72. Connecting rod; 73. Buffer plate; 74. Spring. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4 This utility model provides a technical solution: by adopting the above technical solution, it includes a box body 1, with grids 2 on both sides inside the box body 1, a conical pool 3 on one side inside the box body 1, a drain pipe 4 at the bottom of the conical pool 3, an electric valve 5 and a flow rate detector 6 on one side of the drain pipe 4, a buffer structure 7 on one side inside the drain pipe 4, a motor 8 at the top of the box body 1, the output end of the motor 8 extending into the box body 1 and connected to a rotating rod 9, the other end of the rotating rod 9 penetrating the grid 2 and extending into the conical pool 3, a cleaning brush 11 on one side of the rotating rod 9 at the top of the grid 2, a stirring blade 10 on one side of the rotating rod 9 inside the conical pool 3, a connecting column 12 at the bottom inside the box body 1, a second motor 13 at the bottom of the box body 1, the output end of the second motor 13 penetrating the connecting column 12 and connected to a sedimentation tank 14, and a filter tank 15 at the top of the sedimentation tank 14.

[0020] Reference Figure 4 The buffer structure 7 includes multiple sets of mounting plates 71. Each mounting plate 71 is rotatably provided with a connecting rod 72 on one side. Each connecting rod 72 is provided with a buffer plate 73 on one side. Each mounting plate 71 is provided with a spring 74 on one side. The other end of the spring 74 is connected to the buffer plate 73.

[0021] By adopting the above technical solution, the sand-containing sewage falls onto the mounting plate 71. The buffer plate 73 is connected to the spring 74, and the spring 74 provides resistance. The sewage with a large sand content has a large mass, strong impact force, and fast falling speed. When it impacts the buffer plate 73, the resistance provided by the buffer plate 73 is less obstructive to the large mass of sewage. Thus, the flow rate is detected by the flow detector 6 to determine the amount of sand in the sewage.

[0022] Reference Figure 2-3 A motor 16 is provided on one side of the housing 1, and a sand outlet pipe 27 is provided on one side inside the housing 1. The other end of the sand outlet pipe 27 extends to the outside of the housing 1. The output end of the motor 16 extends into the inside of the housing 1 and is connected to an auger 17. The other end of the auger 17 passes through the connecting column 12 and extends to the outside of the housing 1. The auger 17 is located inside the sand outlet pipe 27. An inclined plate 18 is provided on one side inside the sand settling tank 14. A sand drop hole 19 is provided on one side of the inclined plate 18. A through hole is provided on the sand drop hole 19 of the sand outlet pipe 27.

[0023] By adopting the above technical solution, the sand after water and sand separation falls into the sedimentation tank 14, and then falls into the sand discharge pipe 27 through the inclined plate 18 and the sand discharge hole 19. The motor rotates the auger 17 to discharge the sand.

[0024] Reference Figure 2 A fan frame 21 is provided on one side of the box body 1. A duct 22 is provided at the top of the fan frame 21. The other end of the duct 22 is connected to the box body 1. A fan 23 is provided on one side of the fan frame 21. An activated carbon filter 24 is provided inside the fan frame 21.

[0025] By adopting the above technical solution, the odor inside the box 1 is drawn out by the fan 26 and filtered by the activated carbon filter 24 to ensure the air quality inside the box 1.

[0026] Reference Figure 2 A collection box 25 is slidably provided on one side of the box body 1, and a filter hole is provided at the bottom of the collection box 25;

[0027] By adopting the above technical solution, the large waste filtered by the grid 2 is brushed into the collection box 25 by the cleaning brush 11 for subsequent centralized cleaning.

[0028] Reference Figure 1-2 A drain pipe 20 is provided on one side of the box body 1, and a sewage inlet pipe 26 is provided on the front of the box body 1;

[0029] Working principle: Wastewater enters the tank 1. Large waste materials filtered by the grid 2 are brushed into the collection tank 25 by the cleaning brush 11 for subsequent centralized cleaning. Wastewater enters the conical pool 3. Motor 8 rotates the wastewater to make the sand in the wastewater uniform. Then, the electric valve is opened and the wastewater falls. The sand-containing wastewater falls onto the mounting plate 71. The buffer plate 73 is connected to the spring 74. The spring 74 provides resistance. The wastewater with a large sand content has a large mass and a strong impact force, and falls quickly. When it impacts the buffer plate 73, the resistance provided by the buffer plate 73 is less obstructive to the large mass of wastewater. The flow detector 6 detects the flow rate of the obstructed wastewater. The larger the mass of the wastewater with a large sand content, the less obstruction and the faster the flow rate. After detecting the flow rate, the centrifugal speed of motor 13 is adaptively adjusted to perform centrifugal separation. The sand after water and sand separation falls into the sedimentation tank 14 and falls into the sand outlet pipe 27 through the inclined plate 18 and the sand drop hole 19. Motor 3 rotates the auger 17 to discharge the sand.

[0030] When in use, this utility model can adaptively adjust the centrifugation speed according to the sand content, thereby improving the efficiency and effectiveness of sand separation.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] 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. A sedimentation device for wastewater pretreatment, comprising a housing (1), characterized in that: The box (1) has grilles (2) on both sides inside. A conical pool (3) is provided on one side inside the box (1). A drain pipe (4) is provided at the bottom of the conical pool (3). An electric valve (5) and a flow rate detector (6) are provided on one side of the drain pipe (4). A buffer structure (7) is provided on one side inside the drain pipe (4). A motor (8) is provided at the top of the box (1). The output end of the motor (8) extends into the box (1) and is connected to a rotating rod (9). The other end of the rotating rod (9) passes through... The grid (2) extends into the conical pool (3). The rotating rod (9) is provided with a cleaning brush (11) on one side of the top of the grid (2). The rotating rod (9) is provided with a stirring blade (10) on one side of the inside of the conical pool (3). The bottom of the box (1) is provided with a connecting column (12). The bottom of the box (1) is provided with a second motor (13). The output end of the second motor (13) passes through the connecting column (12) and is connected to a sedimentation tank (14). The top of the sedimentation tank (14) is provided with a filter tank (15).

2. The sedimentation device for wastewater pretreatment according to claim 1, characterized in that: The buffer structure (7) includes multiple sets of mounting plates (71). Each mounting plate (71) has a connecting rod (72) rotatably mounted on one side. Each connecting rod (72) has a buffer plate (73) mounted on one side. Each mounting plate (71) has a spring (74) mounted on one side. The other end of the spring (74) is connected to the buffer plate (73).

3. The sedimentation device for wastewater pretreatment according to claim 1, characterized in that: The box (1) is equipped with a motor three (16) on one side, and a sand outlet pipe (27) is provided inside the box (1) on one side. The other end of the sand outlet pipe (27) extends to the outside of the box (1). The output end of the motor three (16) extends to the inside of the box (1) and is connected to an auger (17). The other end of the auger (17) passes through the connecting column (12) and extends to the outside of the box (1). The auger (17) is located inside the sand outlet pipe (27). An inclined plate (18) is provided inside the sand settling tank (14). A sand drop hole (19) is provided on one side of the inclined plate (18). A through hole is opened at the position of the sand drop hole (19) on the sand outlet pipe (27).

4. A sedimentation device for wastewater pretreatment according to claim 1, characterized in that: The box (1) is provided with a wind frame (21) on one side, and a wind duct (22) is provided at the top of the wind frame (21). The other end of the wind duct (22) is connected to the box (1). A fan (23) is provided on one side of the wind frame (21), and an activated carbon filter (24) is provided on one side inside the wind frame (21).

5. A sedimentation device for wastewater pretreatment according to claim 1, characterized in that: A collection box (25) is slidably provided on one side of the box body (1), and a filter hole is provided at the bottom of the collection box (25).

6. A sedimentation device for wastewater pretreatment according to claim 1, characterized in that: The box (1) is provided with a drain pipe (20) on one side and a sewage inlet pipe (26) on the front.

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