Anaerobic pollution discharge structure for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an anaerobic sewage discharge structure for sewage treatment, which comprises a sewage discharge pipe body, a horizontal block is arranged inside the upper end of the sewage discharge pipe body, a central shaft is arranged at the bottom of the horizontal block, and mud scraping plates and mud scraping brushes which are distributed in a staggered manner are arranged outside the central shaft in a surrounding manner. The upper ends and the lower ends of the mud scraping plates and the mud scraping brushes are connected with the center shaft through connecting shafts, a top block is arranged outside the top end of the blow-off pipe body, a rotating shaft penetrating through the top wall of the blow-off pipe body is connected between the top block and the horizontal block, and a stepping motor driving the rotating shaft to rotate is arranged at the top of the top block. And an air cylinder for driving the top block to move up and down is also arranged outside the top end of the blow-off pipe body. The anaerobic sewage discharge structure for sewage treatment can effectively reduce sludge deposition and suspended solid accumulation in a pipeline and reduce the possibility of forming a microbial film, so that the smoothness of water flow is ensured, and the sewage treatment efficiency and stability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an anaerobic sewage discharge structure for sewage treatment. Background Technique

[0002] With the rapid development of industrialization and urbanization, the sewage discharge volume increases year by year, causing great pressure on the environment. Anaerobic digestion, as an efficient sewage treatment technology, has been widely used. It mainly converts organic substances in sewage into harmless substances such as methane gas and carbon dioxide through the action of microorganisms. It can not only effectively reduce the organic matter content in sewage, but also produce renewable energy.

[0003] The main problem faced by the existing anaerobic sewage treatment system during operation is pipeline blockage, which is more prominent especially when treating high-concentration organic wastewater. This is mainly because a large amount of activated sludge generated during anaerobic digestion fails to be discharged in time and accumulates in the pipeline, resulting in a slowdown or even complete blockage of the flow rate. In addition, the solid suspended matter contained in the sewage that fails to be completely degraded will gradually accumulate in the pipeline, affecting the smooth flow of water. Coupled with the biofilm formed by microorganisms on the inner wall of the pipeline under anaerobic conditions, it further hinders the water flow and promotes sludge deposition through metabolites. These problems not only increase the maintenance cost of the system, but also may lead to a decline in treatment efficiency, seriously affecting the sewage treatment effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide an anaerobic sewage discharge structure for sewage treatment to solve the main problem faced by the current anaerobic sewage treatment system during operation, that is, pipeline blockage, which not only increases the maintenance cost of the system, but also may lead to a decline in treatment efficiency, seriously affecting the sewage treatment effect.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an anaerobic sewage discharge structure for sewage treatment, including a sewage discharge pipe body. Inside the upper end of the sewage discharge pipe body, there is a horizontal block. At the bottom of the horizontal block, there is a central axis. The outer part of the central axis is surrounded by scraping plates and scraping brushes distributed in a staggered manner. The upper and lower ends of the scraping plates and scraping brushes are connected to the central axis through connecting shafts. And outside the top end of the sewage discharge pipe body, there is a top block. A rotating shaft inserted through the top wall of the sewage discharge pipe body is connected between the top block and the horizontal block. At the top of the top block, there is a stepping motor for driving the rotation of the rotating shaft. And outside the top end of the sewage discharge pipe body, there is also a cylinder for driving the top block to move up and down.

[0006] Preferably, an installation seat is arranged outside the scraping plate. Fixing bolts are inserted through the upper and lower ends of the installation seat through a threaded structure. And several micro-protrusion structures are arranged on the surface of the scraping plate.

[0007] Preferably, a convex post is provided at the connection between the central shaft and the coupling shaft, and a movable block is provided at the outer end of the convex post, and a movable hole matching the structure of the movable block is provided at one end of the coupling shaft connected to the central shaft.

[0008] Preferably, an elastic rubber sleeve is sleeved on the outer end of the convex post, and the elastic rubber sleeve is located at the gap between the coupling shaft and the central shaft.

[0009] Preferably, a diversion block is provided on the top inner wall of the sewage discharge pipe body, and the diversion block is located on the left side of the connection between the sewage discharge pipe body and the rotating shaft.

[0010] Preferably, two scraping plates and two scraping brushes are provided respectively and are evenly distributed around the central shaft, and the outer sides of the scraping plates and the scraping brushes are attached to the inner wall of the sewage discharge pipe body.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The anaerobic sewage discharge structure for sewage treatment can effectively reduce the sludge deposition and solid suspended matter accumulation in the pipeline, reduce the possibility of microbial film formation, thereby ensuring smooth water flow and improving the sewage treatment efficiency and stability. The anaerobic sewage discharge structure for sewage treatment drives the horizontal block to swing orderly inside the sewage discharge pipe body through a stepping motor, so that the central shaft drives two groups of scraping plates and scraping brushes to rotate synchronously, alternately cleaning the sludge and solid suspended matter on the inner wall of the sewage discharge pipe body. At the same time, the cylinder drives the top block to move up and down, so that the scraping plates and scraping brushes can more effectively clean different height areas of the inner wall of the sewage discharge pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of an anaerobic sewage discharge structure for sewage treatment according to the present utility model;

[0013] Figure 2 is a schematic structural diagram of the sequential connection of the scraping plate, the scraping brush and the central shaft of an anaerobic sewage discharge structure for sewage treatment according to the present utility model;

[0014] Figure 3 is an enlarged structural diagram of part A in an anaerobic sewage discharge structure for sewage treatment according to the present utility model; Figure 2

[0015] Figure 4 is a schematic structural diagram of the outer wall of the scraping plate of an anaerobic sewage discharge structure for sewage treatment according to the present utility model.

[0016] In the figure: 1. Sewage discharge pipe body; 2. Horizontal block; 3. Central shaft; 4. Scraping plate; 5. Scraping brush; 6. Coupling shaft; 7. Mounting seat; 8. Top block; 9. Rotating shaft; 10. Cylinder; 11. Stepping motor; 12. Diversion block; 13. Convex post; 14. Movable block; 15. Elastic rubber sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS ​

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the protection scope of the present utility model.

[0018] Please refer to Figures 1-4 , the present utility model provides a technical solution: an anaerobic sewage discharge structure for sewage treatment, including a sewage discharge pipe body 1. The top end of the sewage discharge pipe body 1 is a bent structure and is flange-connected to the liquid outlet end of the anaerobic reactor to achieve a sealed connection between the two, ensuring smooth liquid flow. Inside the upper end of the sewage discharge pipe body 1, there is a horizontal block 2. The horizontal block 2 is a strip-shaped structure, and its surface is evenly distributed with a number of overflow holes. At the bottom of the horizontal block 2, there is a central shaft 3. The top end of the central shaft 3 is fixedly connected to the bottom of the horizontal block 2 by screwing. The outside of the central shaft 3 is surrounded by sludge scraping plates 4 and sludge scraping brushes 5 that are arranged in a staggered manner. The upper and lower ends of the sludge scraping plates 4 and the sludge scraping brushes 5 are connected to the central shaft 3 through connecting shafts 6. And outside the top end of the sewage discharge pipe body 1, there is a top block 8. A rotating shaft 9 inserted through the top wall of the sewage discharge pipe body 1 is connected between the top block 8 and the horizontal block 2. The connection between the top wall of the sewage discharge pipe body 1 and the rotating shaft 9 is sealed by a rubber sealing ring. The top of the top block 8 is fixed with a stepping motor 11 that drives the rotation of the rotating shaft 9 through a locking bolt. The output shaft of the stepping motor 11 is connected to the top end of the rotating shaft 9 through a coupling. The bottom end of the rotating shaft 9 is also fixedly connected to the top of the horizontal block 2 by screwing. And outside the top end of the sewage discharge pipe body 1

[0019] A cylinder 10 distributed vertically is fixed by a support block. The output end of the cylinder 10 is fixedly connected to one side of the bottom of the top block 8. The stepping motor 11 of this structure drives the horizontal block 2 to swing orderly inside the sewage pipe body 1 through the rotating shaft 9. The horizontal block 2 then drives two groups of sludge scraping plates 4 and sludge scraping brushes 5 to rotate synchronously by a certain amplitude through the central shaft 3. In this way, the sludge scraping plates 4 and the sludge scraping brushes 5 alternately clean the sludge and solid suspended matters on the inner wall of the sewage pipe body 1 to prevent them from accumulating in the pipeline. And the cylinder 10 drives the top block 8 to move up and down. The up and down movement of the top block 8 can drive the horizontal block 2 to move up and down through the rotating shaft 9, which enables the sludge scraping plates 4 and the sludge scraping brushes 5 to more effectively clean different height areas of the inner wall of the sewage pipe body 1, further reducing the sludge deposition and the accumulation of solid suspended matters in the sewage pipe body 1, reducing the possibility of microbial film formation, thus keeping the water flow smooth, improving the sewage treatment efficiency and stability, reducing the maintenance cost of the system, improving the sewage treatment effect. An installation seat 7 is arranged outside the sludge scraping plate 4. The connection parts between the outer ends of the coupling shafts 6 and the installation seat 7 are all fixed by welding. Fixing bolts are inserted through the upper and lower ends of the installation seat 7 through threaded structures. And several micro-protrusion structures are arranged on the surface of the sludge scraping plate 4. The sludge scraping plate 4 of this structure is ensured to be stable and reliable inside the sewage pipe body 1 through the welding fixation of the installation seat 7 and the coupling shaft 6 and the fastening of the fixing bolts. And the micro-protrusion structures on the surface of the sludge scraping plate 4 enhance the friction with the inner wall of the sewage pipe body 1, thus more effectively cleaning the sludge and solid suspended matters on the inner wall of the sewage pipe body 1. A convex column 13 is fixedly welded at the connection part between the central shaft 3 and the coupling shaft 6. And a movable block 14 is fixedly welded at the outer end of the convex column 13. And an activity hole matching the structure of the movable block 14 is arranged at one end of the coupling shaft 6 connected to the central shaft 3. An elastic rubber sleeve 15 is sleeved on the outer end of the convex column 13, and the elastic rubber sleeve 15 is located at the gap between the coupling shaft 6 and the central shaft 3. In this structure, when the sludge scraping plates 4 and the sludge scraping brushes 5 contact the inner wall of the sewage pipe body 1 and are under pressure, the coupling shaft 6 will slide slightly outside the convex column 13, and the movable block 14 will also move in the activity hole at the outer end of the coupling shaft 6, and at the same time squeeze the elastic rubber sleeve 15, so as to make the sludge scraping plates 4 and the sludge scraping brushes 5 generate a slight elastic telescopic force, which can protect the sludge scraping plates 4 and the sludge scraping brushes 5 from being damaged, extend the service life, and at the same time can better remove the sludge and solid suspended matters in the sewage pipe body 1. A guide block 12 is fixedly welded on the top inner wall of the sewage pipe body 1, and the guide block 12 is located on the left side of the connection part between the sewage pipe body 1 and the rotating shaft 9. The guide block 12 of this structure can prevent the sewage from directly flowing towards the connection part between the top wall of the sewage pipe body 1 and the rotating shaft 9 to play a guiding role. There are two sludge scraping plates 4 and two sludge scraping brushes 5 respectively, and they are evenly distributed around the central shaft 3. And the outer sides of the sludge scraping plates 4 and the sludge scraping brushes 5 are attached to the inner wall of the sewage pipe body 1. The number and positions of the sludge scraping plates 4 and the sludge scraping brushes 5 of this structure are reasonably designed, which can cover most of the area of the inner wall of the sewage pipe body 1, improve the cleaning effect, and the outer sides of the sludge scraping plates 4 and the sludge scraping brushes 5 are attached to the inner wall of the sewage pipe body 1,It can better clean the sludge and solid suspended matters on the inner wall of the sewage discharge pipe body 1.

[0020] Working principle: When using this anaerobic sewage discharge structure for sewage treatment, first, the liquid inlet end of the sewage discharge pipe body 1 is flange-connected to the liquid outlet end of the anaerobic reactor to ensure smooth liquid flow. Then, start the stepper motor 11. The stepper motor 11 drives the horizontal block 2 to swing orderly inside the sewage discharge pipe body 1 through the rotating shaft 9. When the horizontal block 2 swings, it drives the two groups of sludge scraping plates 4 and sludge scraping brushes 5 to rotate synchronously with a certain amplitude through the central shaft 3. When the sludge scraping plates 4 and sludge scraping brushes 5 rotate, they will clean the sludge and solid suspended matters on the inner wall of the sewage discharge pipe body 1. At the same time, start the cylinder 10. The cylinder 10 drives the top block 8 to move up and down. The top block 8 drives the horizontal block 2 to perform a certain amplitude of vertical movement through the rotating shaft 9. In this way, the sludge scraping plates 4 and sludge scraping brushes 5 can clean different height areas of the inner wall of the sewage discharge pipe body 1. When the sludge scraping plates 4 and sludge scraping brushes 5 contact the inner wall of the sewage discharge pipe body 1 and are under pressure, the coupling shaft 6 will slide slightly outside the convex column 13, and the movable block 14 will also move in the movable hole at the outer end of the coupling shaft 6. At the same time, the outer end of the coupling shaft 6 squeezes the elastic rubber sleeve 15. At this time, the sludge scraping plates 4 and sludge scraping brushes 5 generate a slight elastic telescopic force to better remove the sludge and solid suspended matters in the sewage discharge pipe body 1. And during the process of the sewage flowing at the upper end of the sewage discharge pipe body 1, the diversion block 12 can guide it to prevent the sewage from directly flowing towards the connection between the top wall of the sewage discharge pipe body 1 and the rotating shaft 9, thus completing a series of operations.

[0021] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An anaerobic sewage discharge structure for sewage treatment, comprising a sewage discharge pipe body (1), characterized in that: Inside the upper end of the sewage pipe body (1), there is a horizontal block (2). At the bottom of the horizontal block (2), there is a central shaft (3). Around the outside of the central shaft (3), there are sludge scraping plates (4) and sludge scraping brushes (5) distributed in a staggered manner. The upper and lower ends of the sludge scraping plates (4) and the sludge scraping brushes (5) are both connected to the central shaft (3) through connecting shafts (6). And outside the top end of the sewage pipe body (1), there is a top block (8). A rotating shaft (9) inserted through the top wall of the sewage pipe body (1) is connected between the top block (8) and the horizontal block (2). On the top of the top block (8), there is a stepping motor (11) for driving the rotation of the rotating shaft (9). And outside the top end of the sewage pipe body (1), there is also a cylinder (10) for driving the up and down movement of the top block (8).

2. The anaerobic sewage discharge structure for sewage treatment according to claim 1, characterized in that: Outside the sludge scraping plate (4), there is a mounting seat (7). At the upper and lower ends of the mounting seat (7), there are fixing bolts inserted through a threaded structure. And on the surface of the sludge scraping plate (4), there are a number of micro - convex structures.

3. The anaerobic sewage discharge structure for sewage treatment according to claim 1, characterized in that: At the connection between the central shaft (3) and the connecting shaft (6), there is a convex column (13). At the outer end of the convex column (13), there is a movable block (14). And at one end of the connecting shaft (6) connected to the central shaft (3), there is a movable hole matching the structure of the movable block (14).

4. The anaerobic sewage discharge structure for sewage treatment according to claim 3, characterized in that: The outer end of the convex column (13) is sleeved with an elastic rubber sleeve (15). And the elastic rubber sleeve (15) is located at the gap between the connecting shaft (6) and the central shaft (3).

5. The anaerobic sewage discharge structure for sewage treatment according to claim 1, characterized in that: On the top inner wall of the sewage pipe body (1), there is a flow - guiding block (12). And the flow - guiding block (12) is located on the left side of the connection between the sewage pipe body (1) and the rotating shaft (9).

6. The anaerobic sewage discharge structure for sewage treatment according to claim 1, characterized in that: There are two sludge scraping plates (4) and two sludge scraping brushes (5) respectively, which are evenly distributed around the central shaft (3). And the outer sides of the sludge scraping plates (4) and the sludge scraping brushes (5) are in contact with the inner wall of the sewage pipe body (1).

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