Oily wastewater filtering device for thermal power plant

By employing the reciprocating motion of the grating and the design of the mixing components, the problems of clogging and uneven reagent dispersion in the filtration devices for oily wastewater from thermal power plants were solved, achieving efficient wastewater treatment.

CN223766109UActive Publication Date: 2026-01-06中煤新集利辛发电有限公司
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Patent Information

Application Number
CN202423255050.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-28
Publication Date
2026-01-06
Estimated Expiration
2034-12-28

AI Technical Summary

Technical Problem

The existing filtration devices for oily wastewater from thermal power plants are prone to clogging of the grating plates, resulting in uneven dispersion of the reagents and reduced treatment efficiency.

Method used

The design combines a grating plate with a reciprocating component and a mixing component. The grating plate loosens impurities through reciprocating motion, while the mixing component ensures that the agent is evenly dispersed, guaranteeing full contact between the agent and oil droplets and impurities.

Benefits of technology

It improves the continuity and stability of the filtration device, enhances the contact efficiency between the reagent and oil droplets and impurities in the wastewater, and improves the treatment effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of thermal power plant wastewater treatment, and discloses a thermal power plant oily wastewater filtering device which comprises a treatment box, a filtering box is fixedly connected to the top of the treatment box, a grating plate is connected to the interior of the filtering box, and a mixing assembly is connected to the bottom of the grating plate; compared with the prior art, the utility model has the advantages that the grating plate can move up and down in a reciprocating manner, when the grating plate moves, the friction force between the grating plate and impurities can loosen the impurities attached to the grating plate, oil and solid impurities in wastewater are prevented from being adhered to the surface of the grating plate, the smoothness of a water passing channel of the grating plate is ensured, and the service life of the grating plate is prolonged. The continuity and the stability of the oily wastewater filtering device of the thermal power plant are improved; according to the oil-containing wastewater filtering device for the thermal power plant, an agent can be quickly and uniformly dispersed in wastewater, sufficient contact between the agent and oil drops and impurities in the wastewater is ensured, and the chemical reaction efficiency is improved, so that the treatment effect of the oil-containing wastewater filtering device for the thermal power plant is improved.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology in thermal power plants, and in particular to a filtration device for oily wastewater from thermal power plants. Background Technology

[0002] Untreated wastewater from thermal power plants, if discharged directly, will cause serious pollution to surrounding water bodies, soil, and ecosystems. For example, heavy metals can accumulate in aquatic organisms and be passed to humans through the food chain, harming human health; oily wastewater can affect the ecological function of aquatic bodies, leading to the death of aquatic organisms. Wastewater treatment can remove harmful substances from wastewater, enabling it to meet national or local discharge standards, thereby reducing negative environmental impacts. Existing oily wastewater filtration devices from thermal power plants typically have static bar screens. During the treatment of oily wastewater, oil and solid impurities in the wastewater adhere to the bar screen surface, causing blockages and reducing continuity and stability. Furthermore, the chemicals cannot be dispersed quickly and evenly in the wastewater, making it difficult to ensure sufficient contact between the chemicals and oil droplets and impurities, resulting in reduced treatment effectiveness. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a filtration device for oily wastewater from thermal power plants.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a filtration device for oily wastewater from a thermal power plant, comprising a treatment box, a filter box fixedly connected to the top of the treatment box, a grid plate connected inside the filter box, a mixing component connected to the bottom of the grid plate, and a reciprocating component connected to the top of the grid plate;

[0005] The reciprocating assembly includes a mounting base and a mounting frame. The bottom ends of the mounting base and the mounting frame are fixedly connected to the top of the filter box. A motor is fixedly connected to the top of the mounting base. A drive plate is fixedly connected to the output shaft of the motor. An active block is rotatably connected to one end of the drive plate. A fixed block is fixedly connected to the top of the mounting frame. A limit rod is slidably connected inside the fixed block. A driven block is fixedly connected to one end of the limit rod. A fixed frame is fixedly connected to one side of the driven block. The active block slides inside the fixed frame. A driven rod is fixedly connected to one end of the driven block. A limit hole is opened at the top of the filter box. A connecting block is fixedly connected to one end of the driven rod through the limit hole. A fixed frame is fixedly connected to one end of the connecting block. One end of the fixed frame is fixedly connected to the top of the grid plate.

[0006] As a further description of the above technical solution:

[0007] The hybrid component includes a mounting block, one end of which is fixedly connected to the bottom of the grid plate, and the other end of which is fixedly connected to a connecting shaft. One end of the connecting shaft is fixedly connected to a fixing rod, the bottom of the fixing rod is fixedly connected to a fixing shaft, and multiple sets of blades are fixedly connected to the side of the fixing shaft.

[0008] As a further description of the above technical solution:

[0009] The fixed rod, fixed shaft, and blades are all located inside the processing box.

[0010] As a further description of the above technical solution:

[0011] The end of the limiting rod away from the driven block passes through the fixed block and is fixedly connected to the limiting block.

[0012] As a further description of the above technical solution:

[0013] A feed pipe is fixedly connected to one side of the processing box, and a drain pipe is fixedly connected to the other side of the processing box. Both the feed pipe and the drain pipe have a pipe cap connected to one end.

[0014] As a further description of the above technical solution:

[0015] The filter box is fixedly connected to a water inlet at the top.

[0016] As a further description of the above technical solution:

[0017] The bottom of the processing box is fixedly connected to two sets of support frames.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, the reciprocating component enables the bar screen to move up and down. When the bar screen moves, the friction between it and the impurities will loosen the impurities that have been attached to the bar screen, preventing oil and solid impurities in the wastewater from sticking to the surface of the bar screen, ensuring that the water passage of the bar screen is unobstructed, and improving the continuity and stability of the oily wastewater filtration device in thermal power plants.

[0020] 2. In this utility model, the mixing component enables the reagent to be dispersed quickly and evenly in the wastewater, ensuring that the reagent is in full contact with the oil droplets and impurities in the wastewater, thereby improving the efficiency of the chemical reaction and thus enhancing the treatment effect of the oily wastewater filtration device in thermal power plants. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a filtration device for oily wastewater from a thermal power plant, as proposed in this utility model.

[0022] Figure 2A cross-sectional view of an oily wastewater filtration device for thermal power plants proposed in this utility model. Figure 1 ;

[0023] Figure 3 A cross-sectional view of an oily wastewater filtration device for thermal power plants proposed in this utility model. Figure 2 ;

[0024] Figure 4 for Figure 1 Enlarged structural diagram of part A.

[0025] Legend:

[0026] 1. Processing box; 2. Filter box; 3. Reciprocating assembly; 4. Mounting base; 5. Mounting frame; 6. Motor; 7. Drive plate; 8. Driving block; 9. Fixing block; 10. Limiting rod; 11. Limiting block; 12. Driven block; 13. Fixing frame; 14. Driven rod; 15. Limiting hole; 16. Connecting block; 17. Fixing frame; 18. Grating plate; 19. Mixing assembly; 20. Mounting block; 21. Connecting shaft; 22. Fixing rod; 23. Fixing shaft; 24. Paddle; 25. Feed pipe; 26. Drain pipe; 27. Pipe cover; 28. Support frame; 29. ​​Water inlet. 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] Reference Figures 1-4 An embodiment of this utility model is provided: a filtration device for oily wastewater from a thermal power plant, including a treatment box 1, a filter box 2 fixedly connected to the top of the treatment box 1, a grid plate 18 connected inside the filter box 2, a mixing component 19 connected to the bottom of the grid plate 18, and a reciprocating component 3 connected to the top of the grid plate 18.

[0029] The reciprocating assembly 3 includes a mounting base 4 and a mounting frame 5. The bottom ends of the mounting base 4 and the mounting frame 5 are fixedly connected to the top of the filter box 2. The top of the mounting base 4 is fixedly connected to a motor 6. The output shaft of the motor 6 is fixedly connected to a drive plate 7. One end of the drive plate 7 is rotatably connected to an active block 8. The top of the mounting frame 5 is fixedly connected to a fixed block 9. A limit rod 10 is slidably connected inside the fixed block 9. One end of the limit rod 10 is fixedly connected to a driven block 12. A fixed frame 13 is fixedly connected to one side of the driven block 12. The active block 8 slides inside the fixed frame 13. One end of the driven block 12 is fixedly connected to a driven rod 14. A limit hole 15 is opened at the top of the filter box 2. One end of the driven rod 14 passes through the limit hole 15 and is fixedly connected to a connecting block 16. One end of the connecting block 16 is fixedly connected to a fixed frame 17. One end of the fixed frame 17 is fixedly connected to the top of the grid plate 18.

[0030] The mixing component 19 includes a mounting block 20. One end of the mounting block 20 is fixedly connected to the bottom of the grid plate 18, and the other end of the mounting block 20 is fixedly connected to a connecting shaft 21. One end of the connecting shaft 21 is fixedly connected to a fixing rod 22, and the bottom of the fixing rod 22 is fixedly connected to a fixing shaft 23. Multiple sets of blades 24 are fixedly connected to the side of the fixing shaft 23 to improve mixing efficiency. The fixing rod 22, the fixing shaft 23, and the blades 24 are all located inside the processing box 1. The other end of the limiting rod 10 away from the driven block 12 passes through the fixing block 9 and is fixedly connected to a limiting block 11 to prevent the limiting rod 10 from slipping. A feed pipe 25 is fixedly connected to one side of the processing box 1, and a drain pipe 26 is fixedly connected to the other side of the processing box 1. Both the feed pipe 25 and the drain pipe 26 have pipe caps 27 connected to the outside of one end. A water inlet 29 is fixedly connected to the top of the filter box 2, and two sets of support frames 28 are fixedly connected to the bottom of the processing box 1 to improve stability.

[0031] Working principle: The motor 6 is started, driving the drive plate 7 to rotate. The drive plate 7 drives the active block 8 to slide inside the fixed frame 13, causing the fixed frame 13 to move. The fixed frame 13 drives the driven block 12 to move up and down. The driven block 12 drives the limiting rod 10 to slide inside the fixed block 9. Simultaneously, the driven block 12 drives the driven rod 14 to slide inside the limiting hole 15. The driven rod 14 drives the fixed frame 17 to move up and down via the connecting block 16. The fixed frame 17 drives the grid plate 18 to move up and down reciprocally, loosening impurities attached to the grid plate 18 and improving continuity and stability. Then, the filtered wastewater flows into the treatment tank 1 through the grid plate 18. The reagent is fed into the treatment tank 1 through the feed pipe 25. When the grid plate 18 moves, it drives the mounting block 20 to move. The mounting block 20 drives the fixed rod 22 to move via the connecting shaft 21. The fixed rod 22 drives the paddle 24 to move up and down via the fixed shaft 23, allowing the reagent to disperse quickly and evenly in the wastewater, improving the treatment effect.

[0032] All electrical components mentioned in this article are electrically connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and known components is omitted in the specific embodiments disclosed herein. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0033] 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 filtering device for oil-containing wastewater from a thermal power plant, comprising a treatment tank (1), characterized in that: The processing box (1) top fixedly connected with filter box (2), the filter box (2) inside is connected with grid plate (18), the grid plate (18) bottom is connected with mixing assembly (19), the grid plate (18) top is connected with reciprocating assembly (3); The reciprocating assembly (3) includes mounting seat (4) and mounting frame (5), the mounting seat (4) and mounting frame (5) bottom are all fixedly connected on the filter box (2) top, the mounting seat (4) top is fixedly connected with motor (6), the output shaft of motor (6) is fixedly connected with drive plate (7), one end of drive plate (7) is rotatably connected with driving block (8), the mounting frame (5) top is fixedly connected with fixed block (9), the fixed block (9) inside is slidably connected with limiting rod (10), one end of limiting rod (10) is fixedly connected with driven block (12), one side of driven block (12) is fixedly connected with fixed frame (13), the driving block (8) is slidably arranged in the fixed frame (13), one end of driven block (12) is fixedly connected with driven rod (14), the filter box (2) top is provided with limiting hole (15), one end of driven rod (14) passes through limiting hole (15) and is fixedly connected with connecting block (16), one end of connecting block (16) is fixedly connected with fixed frame (17), one end of fixed frame (17) is fixedly connected with the grid plate (18) top.

2. The oil-containing wastewater filtering device for a thermal power plant according to claim 1, characterized in that: The mixing assembly (19) includes mounting block (20), one end of mounting block (20) is fixedly connected with the grid plate (18) bottom, the other end of mounting block (20) is fixedly connected with connecting shaft (21), one end of connecting shaft (21) is fixedly connected with fixed rod (22), the fixed rod (22) bottom is fixedly connected with fixed shaft (23), the fixed shaft (23) side is fixedly connected with multiple paddle (24).

3. The oil-containing wastewater filtering device for a thermal power plant according to claim 2, characterized in that: The fixed rod (22), fixed shaft (23) and paddle (24) are all located in the processing box (1) inside.

4. The oil-containing wastewater filtering device for thermal power plants according to claim 1, characterized in that: The other end of limiting rod (10) away from driven block (12) passes through fixed block (9) and is fixedly connected with limiting block (11).

5. The oil-containing wastewater filtering device for thermal power plants according to claim 1, characterized in that: One side of processing box (1) is fixedly connected with feeding pipe (25), the other side of processing box (1) is fixedly connected with drain pipe (26), one end of feeding pipe (25) and drain pipe (26) is externally connected with pipe cover (27).

6. The oil-containing wastewater filtering device for thermal power plants according to claim 1, characterized in that: The filter box (2) top is fixedly connected with water inlet (29).

7. The oil-containing wastewater filtering device for thermal power plants according to claim 1, characterized in that: The processing box (1) bottom is fixedly connected with two groups of support frames (28). The processing box (1) top is fixedly connected with filter box (2), the filter box (2) inside is connected with grid plate (18), the grid plate (18) bottom is connected with mixing assembly (19), the grid plate (18) top is connected with reciprocating assembly (3);