Automatic sludge reflux ratio adjusting device for sewage treatment
By designing an automatic sludge return ratio adjustment device, the return ratio is automatically controlled using a sludge pump and a flow limiting valve. Combined with scrapers and spray devices, the problems of uneven manual adjustment of the return ratio and sludge clumping are solved, thereby improving the uniformity and stability of wastewater treatment.
Patent Information
- Application Number
- CN202423009012.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In the wastewater treatment process, manual adjustment of the return ratio leads to uneven water distribution in the biological treatment tank, affecting the treatment effect and system stability. At the same time, the sludge in the return tank is prone to sticking together, affecting reuse.
An automatic sludge return ratio adjustment device was designed. It uses a sludge pump and a flow limiting valve to automatically control the return ratio, and drives a scraper to clean the inner wall of the return tank through a drive mechanism. Combined with a spray device, it prevents sludge from clumping.
It enables automatic adjustment of the sludge return ratio, improves the uniformity of wastewater treatment and system stability, prevents sludge from clumping in the return tank, and ensures continuous and efficient operation of the equipment.
Smart Images
Figure CN223705350U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sewage treatment technical field, concretely is a sludge reflux ratio automatic regulating device for sewage treatment. BACKGROUND
[0002] With the acceleration of urbanization process and the continuous development of industrial production, the demand of sewage treatment is increasing, and the requirement of sewage treatment process is also higher and higher.
[0003] When sewage treatment needs to be treated by using aeration tank and sedimentation tank, the effluent of sewage in the aeration tank enters the secondary sedimentation tank for sedimentation, and the clarified supernatant is overflowed from the overflow weir of the upper part of the secondary sedimentation tank, and discharged, and the activated sludge deposited at the bottom of the secondary sedimentation tank is discharged in the form of excess sludge, and a part of it is returned to the aeration tank in the form of return sludge, but the pump body is directly used for pumping during the return, and the water distribution amount return ratio control depends on the manual adjustment of the pump body, which is easy to cause the uneven distribution of water in the two biochemical tanks, affecting the sewage treatment effect and the stability of the system, and the return tank is easy to stick sludge inside after long time use, affecting the reuse, so it needs to be improved. SUMMARY
[0004] The utility model discloses a sludge reflux ratio automatic regulating device for sewage treatment, which solves the problems in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical scheme: a sludge reflux ratio automatic regulating device for sewage treatment, which comprises a return tank, a frame, a sludge pump one and a mounting plate,
[0006] The inner wall bottom end face of the frame is respectively provided with the return tank and the sludge pump one, and the inner wall of the frame is provided with the secondary sedimentation tank through the mounting plate.
[0007] The bottom end face of the mounting plate is provided with a sludge pump two.
[0008] The sludge pump two is connected with the secondary sedimentation tank through the sludge discharge pipe one.
[0009] The sludge pump one is connected with the return tank through the return pipe one.
[0010] The return pipe one and the sludge discharge pipe one are both provided with a flow limiting valve through the flange plate.
[0011] The driving mechanism is installed on the mounting frame on the return tank, and the bottom end face of the mounting frame is provided with a drain pipe.
[0012] The output shaft of the driving mechanism is provided with a connecting frame, and the connecting frame is provided with a scraper.
[0013] Preferably, the second sediment pump is provided with a second sludge discharge pipe, and the second sludge discharge pipe is communicated with the second sediment pump.
[0014] Preferably, the first sediment pump is provided with a second backflow pipe, and the second backflow pipe is communicated with the first sediment pump.
[0015] Preferably, the bottom end surface of the frame is welded with a support frame, and the bottom end surface of the support frame is welded with a base.
[0016] Preferably, the drain pipe is provided with a spray head, and the spray head is communicated with the drain pipe.
[0017] Preferably, the top end surface of the drain pipe is embedded with a connecting pipe, and the connecting pipe is communicated with the drain pipe.
[0018] Preferably, the bottom end surface of the backflow tank is embedded with a blow-off pipe, the blow-off pipe is communicated with the backflow tank, and a blow-off valve is installed on the blow-off pipe through a flange plate.
[0019] Compared with the prior art, the utility model has the advantages of the following:
[0020] 1、The utility model discloses a first sediment pump and a second sediment pump are arranged, when sewage treatment is carried out, the sewage treated by the aeration tank is discharged into the second sediment tank, then the second sediment pump is used to extract the sludge in the second sediment tank through the first sludge discharge pipe, the sludge is discharged into the backflow tank through the second sludge discharge pipe, then the first sediment pump is used to extract the sludge in the backflow tank through the first backflow pipe, and the sludge is discharged into the aeration tank through the second backflow pipe.
[0021] 2, the utility model discloses a backflow pool is set up, when personnel complete the treatment of sewage, in order to effectively prevent the sludge caking of backflow pool inner wall, personnel can start drive mechanism, and then drive the scraper to rotate uniformly through the connecting frame. In the process of scraper rotation, it can scrape and clean the inner wall of backflow pool comprehensively and carefully. At the same time, the connecting pipe and the drain pipe are interconnected in the cleaning process, which makes personnel can connect the connecting pipe with the external water pump and other extraction mechanisms. In this way, clean water can be extracted and injected into the drain pipe through the connecting pipe. Moreover, since the spray head is connected with the drain pipe, the clean water in the drain pipe can be uniformly sprayed and discharged through the spray head. In this way, when the scraper rotates and scrapes the inner wall of the backflow pool, the spray water can also clean at the same time, thereby avoiding the adverse effects of the sludge attached in the backflow pool on the reuse. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is the front view structure schematic diagram of the utility model;
[0023] Figure 2 It is the backflow pool cross section structure schematic diagram of the utility model;
[0024] Figure 3 It is the top view structure schematic diagram of the utility model;
[0025] Figure 4 It is the bottom view structure schematic diagram of the utility model.
[0026] In the drawing: 1, support frame; 2, base; 3, backflow pool; 4, frame; 5, backflow pipe one; 6, sludge pump one; 7, backflow pipe two; 8, mounting plate; 9, two sedimentation tanks; 10, sludge pump two; 11, mounting frame; 12, drive mechanism; 13, connecting frame; 14, scraper; 15, connecting pipe; 16, drain pipe; 17, spray head; 18, flow limiting valve; 19, blowdown valve; 20, blowdown pipe; 21, sludge discharge pipe one; 22, sludge discharge pipe two. DETAILED DESCRIPTION
[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0028] Embodiment one
[0029] As Figures 1-4The utility model provides a kind of sludge reflux ratio automatic regulating device for sewage treatment, including reflux pool 3, frame 4, silt pump one 6 and mounting plate 8,
[0030] The inner wall bottom end face of frame 4 is respectively provided with reflux pool 3 and silt pump one 6, and the inner wall of frame 4 is provided with two sedimentation tanks 9 by mounting plate 8.
[0031] The bottom end face of mounting plate 8 is provided with silt pump two 10.
[0032] Silt pump two 10 is communicated with two sedimentation tanks 9 by sludge discharge pipe one 21.
[0033] Silt pump one 6 is communicated with reflux pool 3 by reflux pipe one 5.
[0034] Flow limiting valve 18 is installed on reflux pipe one 5 and sludge discharge pipe one 21 by flange.
[0035] Driving mechanism 12 is installed on reflux pool 3 by mounting bracket 11, and the bottom end face of mounting bracket 11 is provided with drain pipe 16.
[0036] The output shaft of driving mechanism 12 is provided with connecting bracket 13, and connecting bracket 13 is provided with scraper 14.
[0037] Silt pump two 10 is provided with sludge discharge pipe two 22, and sludge discharge pipe two 22 is communicated with silt pump two 10.
[0038] Reflex pipe two 7 is provided on silt pump one 6, and reflex pipe two 7 is communicated with silt pump one 6.
[0039] The bottom end face of frame 4 is welded with supporting frame 1, and the bottom end face of supporting frame 1 is welded with base 2.
[0040] Based on example 1: when the personnel is treating sewage, after the sewage is treated by the aeration tank and discharged into the secondary sedimentation tank 9, the personnel can use the sludge pump two 10 to extract the sludge that needs to be refluxed in the secondary sedimentation tank 9 through the sludge discharge pipe one 21, and after extraction, the sludge that needs to be refluxed in the reflux tank 3 is discharged into the reflux tank 3 through the sludge discharge pipe two 22, and after extraction, the sludge pump one 6 can be used to extract the sludge that needs to be refluxed in the reflux tank 3 through the reflux pipe one 5 and the reflux pipe two 7, and the reflux ratio is automatically adjusted by installing the flow limiting valve 18 on the reflux pipe one 5 and the sludge discharge pipe one 21, so as to avoid the influence of the manual adjustment of the pump body on the reflux ratio.
[0041] Example two
[0042] As Figures 1-4 shown, the sludge reflux ratio automatic adjusting device for sewage treatment of the utility model, compared with example one, the utility model further includes: reflux tank 3, frame 4, sludge pump one 6 and mounting plate 8,
[0043] The inner wall bottom end face of frame 4 is respectively installed with reflux tank 3 and sludge pump one 6, and the inner wall of frame 4 is installed with secondary sedimentation tank 9 through mounting plate 8;
[0044] The bottom end face of mounting plate 8 is installed with sludge pump two 10;
[0045] Sludge pump two 10 is connected with secondary sedimentation tank 9 through sludge discharge pipe one 21;
[0046] Sludge pump one 6 is connected with reflux tank 3 through reflux pipe one 5;
[0047] Flow limiting valve 18 is installed on reflux pipe one 5 and sludge discharge pipe one 21 through flange;
[0048] The driving mechanism 12 is installed on the reflux tank 3 through the mounting bracket 11, and the drain pipe 16 is installed on the bottom end face of the mounting bracket 11;
[0049] The output shaft of driving mechanism 12 is provided with connecting frame 13, and the connecting frame 13 is provided with scraper 14.
[0050] The spray head 17 is arranged on the drain pipe 16, and the spray head 17 is connected with the drain pipe 16, and the clean water in the drain pipe 16 is sprayed and discharged through the spray head 17.
[0051] The top end face of drain pipe 16 is embedded with connecting pipe 15, and the connecting pipe 15 is connected with drain pipe 16, so that the connecting pipe 15 can be connected with the pump and other extraction mechanisms, so that the clean water can be extracted and injected into the drain pipe 16 through the connecting pipe 15.
[0052] The bottom end surface of the reflux tank 3 is embedded with a blowdown pipe 20, which is communicated with the reflux tank 3, and a blowdown valve 19 is installed on the blowdown pipe 20 through a flange plate. The blowdown pipe 20 is communicated with the reflux tank 3, so that the personnel can open the blowdown valve 19 on the blowdown pipe 20 to discharge the sewage and sludge generated by cleaning in the reflux tank 3, and guide the sewage and sludge into the sewage treatment mechanism such as an aeration tank for further treatment.
[0053] Based on example 2: In order to avoid the attachment of sludge on the inner wall of the reflux tank 3 after sewage treatment, the personnel can open the driving mechanism 12 to drive the scraper 14 to rotate through the connecting frame 13. The scraper 14 can scrape and clean the inner wall of the reflux tank 3 when rotating, and the connecting pipe 15 is communicated with the drain pipe 16 during cleaning, so that the personnel can connect the connecting pipe 15 with a pump or other extraction mechanism, so as to extract clean water through the connecting pipe 15 and inject it into the drain pipe 16. The clean water in the drain pipe 16 is communicated with the nozzle 17, so that the clean water in the drain pipe 16 is sprayed and discharged through the nozzle 17. When the scraper 14 rotates to scrape and clean the inner wall of the reflux tank 3, the nozzle 17 can spray water to clean at the same time, so as to avoid the attachment of sludge in the reflux tank 3 affecting the reuse.
[0054] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.
Claims
1. An automatic sludge return ratio adjustment device for sewage treatment, comprising a return tank (3), a frame (4), a sludge pump (6), and a mounting plate (8), characterized in that: The inner wall bottom surface of the frame (4) is respectively equipped with a return tank (3) and a sludge pump (6), and the inner wall of the frame (4) is equipped with a secondary sedimentation tank (9) through the mounting plate (8). A mud pump (10) is installed on the bottom end face of the mounting plate (8); The second sludge pump (10) is connected to the secondary sedimentation tank (9) through the first sludge discharge pipe (21); The sludge pump (6) is connected to the return pool (3) through the return pipe (5); Both the return pipe (5) and the sludge discharge pipe (21) are equipped with flow limiting valves (18) via flanges; The reflux pool (3) is equipped with a drive mechanism (12) via a mounting bracket (11), and a drain pipe (16) is installed on the bottom end face of the mounting bracket (11). The output shaft of the drive mechanism (12) is provided with a connecting frame (13), and the connecting frame (13) is provided with a scraper (14).
2. The automatic sludge return ratio adjustment device for sewage treatment according to claim 1, characterized in that: The mud pump 2 (10) is equipped with a mud discharge pipe 2 (22), and the mud discharge pipe 2 (22) is connected to the mud pump 2 (10).
3. The automatic sludge return ratio adjustment device for wastewater treatment according to claim 1, characterized in that: The first sludge pump (6) is equipped with a second return pipe (7), and the second return pipe (7) is connected to the first sludge pump (6).
4. The automatic sludge return ratio adjustment device for sewage treatment according to claim 1, characterized in that: The bottom end face of the frame (4) is welded with a support frame (1), and the bottom end face of the support frame (1) is welded with a base (2).
5. The automatic sludge return ratio adjustment device for sewage treatment according to claim 1, characterized in that: The drain pipe (16) is equipped with a nozzle (17), and the nozzle (17) is connected to the drain pipe (16).
6. An automatic sludge return ratio adjustment device for wastewater treatment according to claim 1 or 5, characterized in that: A connecting pipe (15) is embedded and fixed on the top surface of the drain pipe (16), and the connecting pipe (15) is connected to the drain pipe (16).
7. The automatic sludge return ratio adjustment device for wastewater treatment according to claim 1, characterized in that: A drain pipe (20) is embedded and fixed on the bottom end face of the reflux tank (3). The drain pipe (20) is connected to the reflux tank (3), and a drain valve (19) is installed on the drain pipe (20) through a flange.