Membrane aeration bio-membrane reactor convenient to clean

Abstract

The utility model discloses a membrane aeration bio-membrane reactor convenient to clean, and relates to the technical field of sewage treatment. Comprising a shell, a reaction chamber and a cleaning chamber are arranged in the shell, a dividing body and a horizontal reaction body are arranged between the reaction chamber and the cleaning chamber, the reaction body is in a hollow cylindrical shape, two rotating grooves matched with the reaction body are formed in the dividing body, and the bottom face of the reaction body is rotationally and hermetically connected with the inner wall of the shell. The reaction body is in sliding sealing connection with the segmentation body, the reaction body comprises a fixed block and membrane assemblies, the fixed block coincides with the projection of the segmentation body in the vertical direction, and the membrane assemblies are arranged on the two sides of the fixed block; a first liquid inlet is formed in the end, away from the cleaning chamber, of the reaction chamber, and a first liquid outlet is formed in the end, located in the hollow part in the reaction body, of the reaction chamber and communicates with the outside. According to the membrane component cleaning device, the influence on the working efficiency of the membrane component during cleaning is greatly reduced while the membrane component is conveniently cleaned by a worker, and the sewage treatment efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a membrane aeration biofilm reactor which is easy to clean. Background Art

[0002] With the development of society, the concept of environmental protection has been deeply rooted in people's hearts, and wastewater treatment technology has been constantly innovating. MABR (Membrane Aerated Biofilm Reactor) is a new type of sewage treatment technology that integrates gas separation membrane technology and biofilm water treatment technology. It uses a breathable membrane as a carrier of microorganisms. Oxygen is transferred to the microbial membrane layer attached to and growing on the surface of the breathable membrane through the membrane cavity. When sewage flows around, pollutants in the water body enter the biofilm under the action of concentration drive and microbial adsorption. After biological metabolism and proliferation, they are used by microorganisms, so that pollutants in the water body are assimilated into microbial cells, fixed on the biofilm or decomposed into inorganic metabolites, thereby achieving purification and recycling of water bodies.

[0003] The patent with announcement number CN215102255U discloses a membrane aeration biofilm reactor, which has a large gas-liquid contact area and a long residence time of oxygen in the liquid phase. Therefore, the mass transfer resistance is much smaller than that of conventional aeration methods, which greatly improves oxygen utilization and reduces energy consumption. However, after a period of use, pollutants will cover the membrane surface or clog the membrane pores, causing membrane pollution, reducing the treatment effect or even losing the treatment capacity. It is necessary to suspend use to clean the membrane pollution, which greatly reduces the efficiency of sewage treatment. Utility Model Content

[0004] The main purpose of the utility model is to provide a membrane aeration biofilm reactor which is easy to clean, so as to solve the above problems.

[0005] To achieve the above-mentioned purpose, the utility model provides a membrane aeration biofilm reactor that is easy to clean, comprising a shell, a reaction chamber and a cleaning chamber are arranged in the shell, a splitter and a horizontal reaction body are arranged between the reaction chamber and the cleaning chamber, the reaction body is a hollow cylindrical shape, the diameter of the hollow part of the reaction body is larger than the width of the splitter, two rotating grooves adapted to the reaction body are arranged on the splitter, the bottom surface of the reaction body is rotationally sealedly connected to the inner wall of the shell, the reaction body is slidingly sealedly connected to the splitter, the reaction body comprises a fixed block and a membrane assembly, the fixed block coincides with the projection of the splitter in the vertical direction, and the membrane assembly is symmetrically arranged on both sides of the fixed block;

[0006] The reaction chamber is provided with a first liquid inlet at one end away from the cleaning chamber, and a first liquid outlet is provided at one end of the reaction chamber located in the hollow part of the reaction body, and the first liquid outlet is communicated with the outside.

[0007] Furthermore, dividing grooves are provided at the upper and lower ends of the dividing body, the dividing body includes a sealing assembly, the sealing assembly is arranged in the dividing groove, the sealing assembly includes a cylinder and a sealing block, the sealing block is connected to the cylinder at one end away from the reaction body, and the other end of the cylinder is connected to the end of the dividing groove away from the reaction body, a sealing layer is provided at one end of the sealing block close to the reaction body, the height of the sealing block is greater than the distance from the reaction body to the dividing groove, the width of the sealing block is adapted to the width of the dividing groove, and the sealing block is slidably sealed and connected to the dividing groove.

[0008] Furthermore, a second liquid inlet is arranged at the top of the cleaning chamber, and a second liquid outlet is arranged at the bottom.

[0009] Furthermore, a backwash port is provided at one end of the cleaning chamber located in the hollow part of the reaction body, and the backwash port is connected to an external backwash component.

[0010] Furthermore, a vertical slide rail is provided at one end of the cleaning chamber away from the reaction body, and an ultrasonic cavitation device is provided on a slide platform of the slide rail.

[0011] Furthermore, a receiving groove is provided at the top of the cleaning chamber, the top of the slide rail is located in the receiving groove, and an electromagnetic valve is provided at the connection between the receiving groove and the cleaning chamber.

[0012] Furthermore, the bottom of the shell is provided with supporting feet.

[0013] The utility model has the following beneficial effects:

[0014] The utility model can rotate the membrane assembly between the cleaning chamber and the reaction chamber, which is convenient for workers to clean the membrane assembly, while greatly reducing the impact of cleaning on the working efficiency of the membrane assembly, ensuring the treatment efficiency of the dirty liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of Example 1 of a membrane aeration biofilm reactor that is easy to clean according to the utility model;

[0016] Figure 2 This is a schematic diagram of Example 2 of a membrane aeration biofilm reactor that is easy to clean according to the utility model;

[0017] Figure 3This is a stereoscopic diagram of Example 2 (excluding the reaction chamber) of a membrane aeration biofilm reactor that is easy to clean according to the utility model.

[0018] In the figure: 1-shell; 11-support leg; 2-reaction chamber; 21-first liquid inlet; 22-first liquid outlet; 3-cleaning chamber; 31-second liquid inlet; 32-second liquid outlet; 33-backwashing port; 34-slide rail; 35-ultrasonic cavitation device; 36-electromagnetic valve; 4-reaction body; 41-fixed block; 42-membrane assembly; 5-cylinder; 6-sealing block; 7-dividing body. DETAILED DESCRIPTION

[0019] In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the utility model are described in detail with reference to the accompanying drawings for the preferred embodiments of the utility model and their features and functions.

[0020] Embodiment 1: As attached Figure 1 As shown, the utility model provides a membrane aeration biofilm reactor which is easy to clean, comprising a shell 1, a support leg 11 is arranged at the bottom of the shell 1, a reaction chamber 2 and a cleaning chamber 3 are arranged in the shell 1, a partition 7 is arranged between the reaction chamber 2 and the cleaning chamber 3, the partition 7 divides the reaction chamber 2 and the cleaning chamber 3, and a horizontally arranged reaction body 4 is also arranged between the reaction chamber 2 and the cleaning chamber 3, the reaction body 4 is a hollow cylindrical shape and the diameter of the hollow part of the reaction body 4 is larger than the width of the partition 7, two rotating grooves adapted to the reaction body 4 are arranged on the partition 7, the bottom surface of the reaction body 4 is rotatably sealedly connected to the inner wall of the shell 1, the reaction body 4 is slidably sealedly connected to the partition 7, the reaction body 4 and the partition 7 divide the reaction chamber 2 and the cleaning chamber 3, and the reaction body 4 can select which parts are in contact with the reaction chamber 2 by rotating around the midpoint of the partition 7.

[0021] The reaction body 4 includes a fixed block 41 and a membrane assembly 42. The fixed block 41 coincides with the projection of the partition body 7 in the vertical direction. The membrane assembly 42 is symmetrically arranged on both sides of the fixed block 41. The fixed block 41 makes the sealing between the reaction body 4 and the partition body 7 better. The membrane assemblies 42 on both sides can enter the cleaning chamber 3 or the reaction chamber 2 by rotating to achieve changes in different working states.

[0022] A first liquid inlet 21 is disposed at one end of the reaction chamber 2 away from the cleaning chamber 3 , and a first liquid outlet 22 is disposed at one end of the reaction chamber 2 located in the hollow portion of the reaction body 4 , and the first liquid outlet 22 is communicated with the outside.

[0023] In actual use, the dirty liquid enters the reaction chamber 2 from the first liquid inlet 21, flows toward the first liquid outlet 22, passes through the membrane assembly 42 during the flow, and leaves the first liquid outlet 22 after sufficient reaction. After a period of use, the operator can control the reaction body 4 to rotate 180° forward, and swap the positions of the membrane assemblies 42 on both sides of the reaction body 4. After the rotation is completed, while the reaction is taking place in the reaction chamber 2, the operator can clean the membrane assembly 42 in the cleaning chamber 3. After a period of time, the reaction body 4 is controlled to reverse 180°, and the membrane assembly 42 in the cleaning chamber 3 is cleaned again, so as to ensure the permeability of the membrane assembly 42 and the treatment effect of the dirty liquid.

[0024] Embodiment 2: As attached Figure 2-3 As shown, the upper and lower ends of the split body 7 are provided with split grooves, the split body 7 includes a sealing assembly, the sealing assembly is arranged in the split groove, the sealing assembly includes a cylinder 5 and a sealing block 6, the end of the sealing block 6 away from the reaction body 4 is connected to the cylinder 5, the other end of the cylinder 5 is connected to the end of the split groove away from the reaction body 4, the end of the sealing block 6 close to the reaction body 4 is provided with a sealing layer, the height of the sealing block 6 is greater than the distance from the reaction body 4 to the split groove, the width of the sealing block 6 is adapted to the width of the split groove, and the sealing block 6 is slidably sealed and connected to the split groove. When switching the membrane assembly 42, the operator can first control the cylinder 5 to contract, so that the sealing block 6 is away from the reaction body 4, and then rotate the reaction body 4. After the rotation is completed, the cylinder 5 is controlled to extend, so that the sealing block 6 is pressed on the fixed block 41 of the reaction body 4, thereby improving the sealing performance and avoiding cross-flow between the reaction chamber 2 and the cleaning chamber 3.

[0025] In another embodiment, the top of the cleaning chamber 3 is provided with a second liquid inlet 31, and the bottom is provided with a second liquid outlet 32. The operator can pass the cleaning liquid into the cleaning chamber 3 through the second liquid inlet 31 to soak the membrane assembly 42, so as to clean the membrane assembly 42, and then discharge the sewage through the second liquid outlet 32 ​​after the soaking is completed.

[0026] In another embodiment, a backwash port 33 is provided at one end of the cleaning chamber 3 located in the hollow part of the reaction body, and the backwash port 33 is connected to the external backwash component. The operator can pass filtered water into the cleaning chamber 3 through the backwash port 33, and apply a certain pressure to the membrane outlet to perform water backwashing on the membrane assembly 42. After the flushing is completed, the sewage is discharged through the second liquid outlet 32.

[0027] In another embodiment, a vertical slide rail 34 is provided at one end of the cleaning chamber 3 away from the reaction body 4, and an ultrasonic cavitation device 35 is provided on the slide table of the slide rail 34. The operator can introduce water into the cleaning chamber 3, and ultrasonically clean the membrane assembly 42 through the ultrasonic cavitation device 35, and change the position of the ultrasonic cavitation device 35 by controlling the movement of the slide table to ensure the effect of ultrasonic cleaning.

[0028] In another embodiment, a receiving groove is provided at the top of the cleaning chamber 3, the top of the slide rail 34 is located in the receiving groove, and an electromagnetic valve 36 is provided at the connection between the receiving groove and the cleaning chamber 3. When the membrane assembly 42 needs to be alkaline-washed and acid-washed, the operator can first move the ultrasonic cavitation device 35 into the receiving groove, close the electromagnetic valve 36, and then introduce the cleaning liquid to prevent the liquid in the cleaning chamber 3 from entering the receiving groove, thereby preventing the cleaning liquid introduced into the cleaning chamber 3 from contacting the ultrasonic cavitation device 35 and causing damage to the ultrasonic cavitation device 35.

[0029] The above description is only the preferred embodiment of the utility model, not all embodiments. Anyone should be aware that structural changes made under the inspiration of the utility model, and all technical solutions that are the same or similar to the utility model, belong to the protection scope of the utility model.

Claims

1. A membrane aeration biofilm reactor that is easy to clean, characterized in that: The invention comprises a shell (1), wherein a reaction chamber (2) and a cleaning chamber (3) are arranged in the shell (1), a partition (7) and a horizontal reaction body (4) are arranged between the reaction chamber (2) and the cleaning chamber (3), the reaction body (4) is in the shape of a hollow cylinder, the diameter of the hollow part of the reaction body (4) is larger than the width of the partition (7), the partition (7) is provided with two rotation grooves adapted to the reaction body (4), the bottom surface of the reaction body (4) is rotationally sealedly connected to the inner wall of the shell (1), the reaction body (4) is slidingly sealedly connected to the partition (7), the reaction body (4) comprises a fixed block (41) and a membrane assembly (42), the fixed block (41) and the projection of the partition (7) in the vertical direction coincide with each other, and the membrane assembly (42) is symmetrically arranged on both sides of the fixed block (41); A first liquid inlet (21) is provided at one end of the reaction chamber (2) away from the cleaning chamber (3), and a first liquid outlet (22) is provided at one end of the reaction chamber (2) located in the hollow portion of the reaction body (4), wherein the first liquid outlet (22) is in communication with the outside.

2. A membrane aeration biofilm reactor that is easy to clean as claimed in claim 1, characterized in that: The dividing body (7) is provided with dividing grooves at both upper and lower ends. The dividing body (7) includes a sealing component, which is arranged in the dividing groove. The sealing component includes a cylinder (5) and a sealing block (6). The end of the sealing block (6) away from the reaction body (4) is connected to the cylinder (5), and the other end of the cylinder (5) is connected to the end of the dividing groove away from the reaction body (4). The end of the sealing block (6) close to the reaction body (4) is provided with a sealing layer. The height of the sealing block (6) is greater than the distance from the reaction body (4) to the dividing groove. The width of the sealing block (6) is adapted to the width of the dividing groove. The sealing block (6) is slidably sealed and connected to the dividing groove.

3. The membrane aeration biofilm reactor that is easy to clean according to claim 1, characterized in that: The top of the cleaning chamber (3) is provided with a second liquid inlet (31), and the bottom is provided with a second liquid outlet (32).

4. The membrane aeration biofilm reactor that is easy to clean as claimed in claim 3, characterized in that: The cleaning chamber (3) is provided with a backwash port (33) at one end of the hollow portion of the reaction body, and the backwash port (33) is connected to an external backwash component.

5. The membrane aeration biofilm reactor that is easy to clean as claimed in claim 3, characterized in that: A vertical slide rail (34) is arranged at one end of the cleaning chamber (3) away from the reaction body (4), and an ultrasonic cavitation device (35) is arranged on the slide platform of the slide rail (34).

6. The membrane aeration biofilm reactor that is easy to clean as claimed in claim 5, characterized in that: The top of the cleaning chamber (3) is provided with a receiving groove, the top of the slide rail (34) is located in the receiving groove, and an electromagnetic valve (36) is provided at the connection between the receiving groove and the cleaning chamber (3).

7. A membrane aerated biofilm reactor that is easy to clean according to any one of claims 1 to 6, characterized in that: A support foot (11) is provided at the bottom of the shell.

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