Air floatation machine with filtering structure for sewage treatment

Abstract

The utility model relates to sewage treatment equipment air flotator technical field discloses a sewage treatment air flotator with filter structure, including fixed box, the top of fixed box is provided with water inlet, the inner wall fixed connection of fixed box has arc filter screen, the front and back both sides of arc filter screen all are provided with discharge gate, the left and right sides of arc filter screen all are provided with first sliding slot, the below of first sliding slot all is provided with arc rack, the inner wall swing joint of first sliding slot has first sliding block, the middle part rotation of first sliding block is connected with rotating shaft, in the utility model, the arc filter screen is set up and carries out the filtration treatment to sewage, the cleaning roller and the scraper are set up and the impurity is cleaned automatically, can remove the impurity on the filter screen in real time, ensures that the filter screen always keeps good filterability, avoids the block, thereby guarantees the stability of filtration effect.

Description

Technical Field

[0001] This utility model relates to the technical field of air flotation machines for sewage treatment equipment, and in particular to an air flotation machine for sewage treatment with a filtration structure. Background Technology

[0002] Wastewater is water that has lost its original function. Wastewater is caused by the introduction of new substances into the water or changes in external conditions, which cause the water to deteriorate and lose its original function. Wastewater is usually treated using dissolved air flotation (DAF) machines. DAF machines are a type of flotation equipment used in wastewater treatment for the separation of solids and liquids or between liquids. DAF machines have a good treatment effect on small suspended solids, algae, flocculent matter, etc. in wastewater.

[0003] According to the search, the present invention disclosed in announcement number CN215403514U is a dissolved air flotation machine, including a base plate. A sewage tank, an air flotation tank, a clear water tank and a dissolved air tank are fixedly installed on the top of the base plate in sequence. The air flotation tank is provided with a mixing zone and an air flotation zone. A filter plate is slidably connected to the inner wall of the mixing zone. An installation plate is fixedly connected to the top of the air flotation tank. A power component for driving the filter plate to slide is provided on the installation plate.

[0004] Based on the aforementioned patent, wastewater flows into a filter plate, where larger substances are filtered out before flowing to the bottom of the mixing zone. However, the filter lacks a structure for cleaning the filter, resulting in numerous and varied impurities that can easily cause blockages during wastewater filtration. To address this technical problem, this application proposes an air flotation machine for wastewater treatment with a filtration structure. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flotation machine for wastewater treatment with a filtration structure. This machine filters wastewater through an arc-shaped filter screen and automatically removes impurities using cleaning rollers and scrapers. This allows for real-time removal of impurities from the filter screen, ensuring that the screen maintains good filtration performance, preventing clogging, and thus guaranteeing the stability of the filtration effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A flotation machine for wastewater treatment with a filtration structure includes a fixed housing. An inlet is located at the top of the fixed housing. An arc-shaped filter screen is fixedly connected to the inner wall of the fixed housing. Discharge ports are located on both the front and rear sides of the arc-shaped filter screen. First chutes are located on both the left and right sides of the arc-shaped filter screen. Arc-shaped racks are located below each of the first chutes. First sliders are movably connected to the inner wall of the first chutes. A rotating shaft is rotatably connected to the middle of the first sliders. A cleaning roller is fixedly connected to the middle of the outer wall of the rotating shaft. Gears are fixedly connected to both the left and right sides of the outer wall of the rotating shaft. The outer walls of the gears mesh with the outer walls of the arc-shaped racks. Scrapers are fixedly connected to the opposite ends of the first sliders on both the left and right sides. The cleaning roller and scrapers are in contact with the top of the arc-shaped filter screen. A moving assembly for driving the cleaning roller and scrapers to move back and forth is located inside the fixed housing.

[0008] Furthermore, the movable component includes grooves disposed on the left and right sides of the fixed housing. Movable blocks are movably connected to the inner walls of the grooves. Hollow plates are fixedly connected to the opposite ends of the movable blocks. Movable plates are movably connected to the inner walls of the hollow plates. The opposite ends of the movable plates are rotatably connected to the left and right ends of the rotating shaft, respectively. Springs are fixedly connected to the bottom ends of the movable plates. The bottom ends of the springs are fixedly connected to the bottom ends of the inner walls of the hollow plates.

[0009] Furthermore, the inner walls of the grooves are rotatably connected to reciprocating screws, the outer walls of the reciprocating screws are threaded to the middle of the movable block, and the rear ends of the reciprocating screws are fixedly connected to pulleys, with the pulleys on the left and right sides connected by belts.

[0010] Furthermore, a motor is fixedly connected to the bottom right front side of the fixed housing, and the drive shaft of the motor is fixedly connected to the front end of the reciprocating screw on the right side.

[0011] Furthermore, an air flotation tank is provided below the fixed box, and a fixed platform is fixedly connected to the left side of the interior of the air flotation tank. The bottom end of the fixed box is fixedly connected to the upper end of the fixed platform, and an outlet is provided inside the fixed platform. Collection boxes are provided on both the front and rear sides of the inner wall of the air flotation tank.

[0012] Furthermore, a flow-gathering bucket is fixedly connected to the bottom end of the arc-shaped filter screen, and the bottom end of the flow-gathering bucket is connected to the water outlet.

[0013] Furthermore, a second chute is provided on the upper right side of the flotation tank, a second slider is movably connected to the outer wall of the second chute, a fixed plate is fixedly connected to the top of the second slider, and the left end of the fixed plate is fixedly connected to the right end of the movable block.

[0014] Furthermore, a scum cleaning plate is fixedly connected to the bottom end of the fixing plate, and the bottom of the scum cleaning plate and the top of the collection box are located on the same horizontal plane.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the arc-shaped filter screen can increase the filtration area, allowing more sewage to come into contact with the filter screen at the same time, thereby accelerating the filtration speed. After larger impurities are effectively removed, the subsequent treatment process can proceed more smoothly, avoiding blockage of pipes or equipment due to excessive impurities, and improving the overall working efficiency of the sewage treatment system.

[0017] 2. In this utility model, the scum cleaning plate driven by the set movable block will clean the scum floating inside the flotation tank, which can realize automatic and continuous scum cleaning without interrupting the sewage treatment process. This greatly improves work efficiency and ensures that the sewage treatment system can operate continuously and stably. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an air flotation machine for wastewater treatment with a filtration structure proposed in this utility model.

[0019] Figure 2 This is a cross-sectional view of the fixed box of a flotation machine for wastewater treatment with a filtration structure proposed in this utility model.

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the filter screen structure of an air flotation machine for wastewater treatment with a filtration structure proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the cleaning roller of an air flotation machine for wastewater treatment with a filtration structure proposed in this utility model.

[0023] Figure 6 This is a schematic diagram of the flow-gathering hopper of an air flotation machine for wastewater treatment with a filtration structure proposed in this utility model.

[0024] Legend:

[0025] 1. Fixed housing; 2. Arc-shaped filter screen; 3. First chute; 4. First slider; 5. Rotating shaft; 6. Cleaning roller; 7. Scraper; 8. Gear; 9. Movable block; 10. Hollow plate; 11. Spring; 12. Movable plate; 13. Groove; 14. Reciprocating screw; 15. Pulley; 16. Motor; 17. Flotation tank; 18. Fixed platform; 19. Outlet; 20. Converging hopper; 21. Second chute; 22. Second slider; 23. Fixed plate; 24. Scum cleaning plate; 25. Collection box; 26. Inlet; 27. Outlet; 28. Arc-shaped rack. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0027] Reference Figure 2 , Figure 4 and Figure 5 This utility model provides an embodiment of a wastewater treatment flotation machine with a filtration structure, comprising a fixed housing 1, an inlet 26 at the top of the fixed housing 1, an arc-shaped filter screen 2 fixedly connected to the inner wall of the fixed housing 1, discharge ports 27 on both the front and rear sides of the arc-shaped filter screen 2, first chutes 3 on both the left and right sides of the arc-shaped filter screen 2, arc-shaped racks 28 below each of the first chutes 3, a first slider 4 movably connected to the inner wall of the first chutes 3, a rotating shaft 5 rotatably connected to the middle of the first slider 4, and a cleaning roller 6 fixedly connected to the middle of the outer wall of the rotating shaft 5. Gears 8 are fixedly connected to both sides of the outer wall. The outer walls of the gears 8 are meshed with the outer walls of the arc-shaped rack 28. Scrapers 7 are fixedly connected to both sides of the opposite end of the first slider 4. The cleaning roller 6 and the scraper 7 are both in contact with the top of the arc-shaped filter screen 2. Grooves 13 are provided on both sides of the fixed box 1. Movable blocks 9 are movably connected to the inner walls of the grooves 13. Hollow plates 10 are fixedly connected to the opposite ends of the movable blocks 9. Movable plates 12 are movably connected to the inner walls of the hollow plates 10. Springs 11 are fixedly connected to the bottom of the movable plates 12. The bottom of the springs 11 is fixedly connected to the bottom of the inner wall of the hollow plates 10.

[0028] Specifically, the movable block 9 can move inside the groove 13, while simultaneously driving the hollow plate 10 to move synchronously. The spring 11 allows the movable plate 12 to freely extend and retract within the inner wall of the hollow plate 10, facilitating automatic length adjustment according to the curvature of the arc-shaped filter screen 2. When the cleaning roller 6 moves, it rotates automatically through the cooperation of the gear 8 and the arc-shaped rack 28, and then cleans the surface of the arc-shaped filter screen 2. The scraper 7 carries impurities towards the discharge port 27 for discharge, eliminating the need for manual cleaning and improving work efficiency.

[0029] Reference Figure 4 The inner wall of the groove 13 is rotatably connected to a reciprocating screw 14, the outer wall of the reciprocating screw 14 is threaded to the middle of the movable block 9, the rear end of the reciprocating screw 14 is fixedly connected to a pulley 15, the left and right pulleys 15 are connected by a belt, the front right bottom of the fixed box 1 is fixedly connected to a motor 16, and the drive shaft of the motor 16 is fixedly connected to the front end of the right reciprocating screw 14.

[0030] Specifically, the starting motor 16 drives the movable block 9 to reciprocate along the inner wall of the groove 13, which in turn drives the cleaning roller 6 and scraper 7 to reciprocate in conjunction with the hollow plate 10 and the movable plate 12 to automatically clean impurities and improve cleaning efficiency.

[0031] Reference Figure 1 , Figure 2 and Figure 3 A flotation tank 17 is provided below the fixed box 1. A fixed platform 18 is fixedly connected to the left side of the interior of the flotation tank 17. The bottom of the fixed box 1 is fixedly connected to the upper end of the fixed platform 18. An outlet 19 is provided inside the fixed platform 18. Collection boxes 25 are provided on both the front and rear sides of the inner wall of the flotation tank 17. A flow-gathering hopper 20 is fixedly connected to the bottom of the arc-shaped filter screen 2. The bottom of the flow-gathering hopper 20 is connected to the outlet 19. A second chute 21 is provided on the upper right side of the flotation tank 17. A second slider 22 is movably connected to the outer wall of the second chute 21. A fixed plate 23 is fixedly connected to the top of the second slider 22. The left end of the fixed plate 23 is fixedly connected to the right end of the movable block 9. A scum cleaning plate 24 is fixedly connected to the bottom of the fixed plate 23. The bottom of the scum cleaning plate 24 and the top of the collection box 25 are on the same horizontal plane.

[0032] Specifically, the second slider 22 slides along the outer wall of the second chute 21. Driven by the movable block 9, the fixed plate 23 and the scum cleaning plate 24 reciprocate back and forth, bringing the scum formed inside the flotation tank 17 into the collection box 25, thus realizing automatic scum cleaning and improving the efficiency of sewage treatment.

[0033] Working principle: During use, sewage is discharged into the fixed tank 1 through the inlet 26. Larger impurities in the sewage are intercepted at the upper end of the arc-shaped filter screen 2. The starting motor 16 drives the reciprocating screw 14 to rotate, which in turn drives the movable block 9 to move back and forth on the inner wall of the groove 13. The movable block 9, in conjunction with the hollow plate 10, spring 11, and movable plate 12, drives the cleaning roller 6 and scraper 7 to reciprocate synchronously. The cleaning roller 6, in conjunction with the gear 8 and arc-shaped rack 28, rotates on its own axis, thus cleaning the arc-shaped... The upper surface of the filter screen 2 is cleaned, and at the same time, the scraper 7 carries the impurities attached to the upper surface of the arc-shaped filter screen 2 to the front and rear sides of the arc-shaped filter screen 2 and discharges them into the fixed box 1 through the discharge port 27. The filtered sewage enters the inside of the condensing hopper 20 for collection, and then flows into the inside of the flotation tank 17 through the outlet 19. Under the action of the dissolved air system, the impurities are separated from the water and float on the surface of the water. The scum cleaning plate 24 scrapes the scum into the inside of the collection box 25 under the action of the movable block 9, thus completing the sewage treatment.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flotation machine for wastewater treatment with a filtration structure, characterized in that, The system includes a fixed housing (1), with an inlet (26) at the top. An arc-shaped filter screen (2) is fixedly connected to the inner wall of the fixed housing (1). An outlet (27) is provided on both the front and rear sides of the arc-shaped filter screen (2). A first slide groove (3) is provided on both the left and right sides of the arc-shaped filter screen (2). An arc-shaped rack (28) is provided below each of the first slide grooves (3). A first slider (4) is movably connected to the inner wall of the first slide groove (3). A rotating shaft is rotatably connected to the middle of the first slider (4). (5) A cleaning roller (6) is fixedly connected to the middle of the outer wall of the rotating shaft (5). Gears (8) are fixedly connected to both the left and right sides of the outer wall of the rotating shaft (5). The outer wall of the gear (8) is meshed with the outer wall of the arc-shaped rack (28). Scrapers (7) are fixedly connected to both the left and right sides of the opposite end of the first slider (4). The cleaning roller (6) and the scraper (7) are both in contact with the top of the arc-shaped filter screen (2). The fixed box (1) is provided with a moving component for driving the cleaning roller (6) and the scraper (7) to move back and forth.

2. The air flotation machine for wastewater treatment with a filtration structure according to claim 1, characterized in that: The movable component includes grooves (13) on the left and right sides of the fixed box (1). Movable blocks (9) are movably connected to the inner walls of the grooves (13). Hollow plates (10) are fixedly connected to the opposite ends of the movable blocks (9). Movable plates (12) are movably connected to the inner walls of the hollow plates (10). The opposite ends of the movable plates (12) are rotatably connected to the left and right ends of the rotating shaft (5). Springs (11) are fixedly connected to the bottom ends of the movable plates (12). The bottom ends of the springs (11) are fixedly connected to the bottom end of the inner wall of the hollow plates (10).

3. The air flotation machine for wastewater treatment with a filtration structure according to claim 2, characterized in that: The inner wall of the groove (13) is rotatably connected to a reciprocating screw (14), the outer wall of the reciprocating screw (14) is threaded to the middle of the movable block (9), and the rear end of the reciprocating screw (14) is fixedly connected to a pulley (15). The pulleys (15) on the left and right sides are connected by a belt.

4. A flotation machine for wastewater treatment with a filtration structure according to claim 3, characterized in that: A motor (16) is fixedly connected to the bottom right side of the front end of the fixed housing (1), and the drive shaft of the motor (16) is fixedly connected to the front end of the reciprocating screw (14) on the right side.

5. A flotation machine for wastewater treatment with a filtration structure according to claim 1, characterized in that: Below the fixed box (1) is an air flotation tank (17). A fixed platform (18) is fixedly connected to the left side of the interior of the air flotation tank (17). The bottom end of the fixed box (1) is fixedly connected to the top end of the fixed platform (18). An outlet (19) is provided inside the fixed platform (18). Collection boxes (25) are provided on both the front and back sides of the inner wall of the air flotation tank (17).

6. A flotation machine for wastewater treatment with a filtration structure according to claim 1, characterized in that: The bottom end of the arc-shaped filter screen (2) is fixedly connected to a flow-gathering bucket (20), and the bottom end of the flow-gathering bucket (20) is connected to the water outlet (19).

7. A flotation machine for wastewater treatment with a filtration structure according to claim 5, characterized in that: The upper right side of the flotation tank (17) is provided with a second chute (21), the outer wall of the second chute (21) is movably connected with a second slider (22), the top of the second slider (22) is fixedly connected with a fixing plate (23), and the left end of the fixing plate (23) is fixedly connected to the right end of the movable block (9).

8. A flotation machine for wastewater treatment with a filtration structure according to claim 7, characterized in that: The bottom end of the fixed plate (23) is fixedly connected to the scum cleaning plate (24), and the bottom of the scum cleaning plate (24) and the top of the collection box (25) are on the same horizontal plane.

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