Integrated MBR domestic sewage treatment device

Abstract

The utility model relates to the field of sewage treatment, in particular to an integrated MBR (Membrane Biological Reactor) domestic sewage treatment device which comprises a sealing mechanism, a filter membrane and a cleaning mechanism, the filter membrane is arranged in the sealing mechanism, the cleaning mechanism is used for carrying out auxiliary cleaning on the filter membrane after shaking under water pressure, the upper end of the sealing mechanism is connected with a water outlet mechanism, and the lower end of the sealing mechanism is connected with a water pump. The bottom of the sealing mechanism is connected with a water inlet mechanism, the filtering membranes are installed in the center of the interior of the sealing mechanism, the filtering membranes are arranged in a plurality of groups of arrays, and the inner side of each group of filtering membranes is slidably connected with the cleaning mechanism; and the top of the cleaning mechanism is connected with a reset mechanism which floats up and down under the action of water pressure. During cleaning, the spiral characteristic of the spiral plate is utilized, the inner side filtering membrane is rubbed and cleaned in a pull-up inward retraction manner, and the outer side filtering membrane is rubbed and cleaned in a downward pressing outward expansion manner, so that the surfaces of the filtering membranes are treated, the maintenance frequency is reduced, and the equipment operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, and in particular to an integrated MBR domestic wastewater treatment device. Background Technology

[0002] The integrated MBR (Membrane Bioreactor) wastewater treatment system is a high-efficiency wastewater treatment device that integrates membrane bioreactor technology. It combines activated sludge technology with membrane separation technology, using immersed membrane modules to replace traditional secondary sedimentation tanks, achieving integrated treatment of biodegradation and solid-liquid separation. The core process involves wastewater pre-treatment through a screen and equalization tank, followed by sequential biodegradation in an anoxic and aerobic tank. Subsequently, in the MBR membrane tank, the membrane's high efficiency separates activated sludge and macromolecular organic matter, significantly increasing the sludge concentration within the reactor. Ultimately, it produces near-zero suspended solids and stable reclaimed water. This system offers advantages such as small footprint, high pollutant removal rate, high automation, and low residual sludge, making it suitable for wastewater treatment in residential communities, hotels, schools, and other similar settings.

[0003] In the prior art, compared with the Chinese utility model with announcement number CN219603385U, an integrated MBR domestic sewage treatment device is disclosed, which improves the sewage treatment effect of MBR by impurity sedimentation. However, in practical applications, it has been found that since large particles have been treated in previous processes, the MBR membrane only treats tiny impurities. The essence of treatment is to use water pressure to filter the tiny impurities in the sewage through the filter membrane. As a result, the impurities will adhere to the outer surface of the filter membrane. After a long period of filtration, the equipment needs to be disassembled to clean the filter membrane, which requires shutdown, thus prolonging the sewage treatment working time and affecting efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an integrated MBR domestic wastewater treatment device to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] An integrated MBR (Multi-Body Batch Reactor) domestic wastewater treatment device includes a sealing mechanism and a filter membrane. The filter membrane is installed inside the sealing mechanism. The device also includes a cleaning mechanism that assists in cleaning the filter membrane by causing it to shake under water pressure. The upper end of the sealing mechanism is connected to a water outlet mechanism, and the bottom of the sealing mechanism is connected to a water inlet mechanism. The filter membrane is installed at the center of the sealing mechanism. The filter membrane is arranged in an array of several groups. The cleaning mechanism is slidably connected to the inner side of each group of filter membranes. The top of the cleaning mechanism is connected to a reset mechanism for floating up and down under water pressure.

[0007] The cleaning mechanism includes a floating plate and a spiral plate. The floating plate is sleeved on the water outlet pipe of the water outlet mechanism, and the floating plate is slidably connected to the water outlet pipe. The bottom of the floating plate is connected to a spiral plate, and the spiral plate is slidably connected to the inner side of the filter membrane.

[0008] The reset mechanism includes a fixed sleeve, which is fixedly connected to the upper end of the sealing box of the sealing mechanism. A base plate is slidably connected to the top of the inner side of the sealing box. A compression piston is provided at the upper end of the base plate corresponding to the position of the fixed sleeve. The compression piston is slidably connected inside the fixed sleeve. The top of the compression piston and the fixed sleeve are engaged by a reset spring. The bottom of the base plate is fixedly connected to the floating plate.

[0009] Preferably, each group of filter membranes is provided with a plurality of them, and each spiral plate is wrapped around the middle of the same group of filter membranes, and the spiral plate is in frictional engagement with the filter membrane.

[0010] Preferably, the spiral plate has a spiral structure, and the inner material of the spiral plate is copper sheet, with a plastic layer wrapped around the copper sheet of the spiral plate.

[0011] Preferably, the bottom of the spiral plate is fixedly connected to the support plate of the water inlet mechanism.

[0012] Preferably, the support plate is fixed to the filter membrane and the sealing box, and the side of the sealing box is formed with a water inlet corresponding to the position of the support plate.

[0013] Preferably, the base plate slides in conjunction with the sealing box, and a rubber ring is provided on the mating end face of the base plate and the sealing box.

[0014] Preferably, the water outlet pipe is fixed inside the sealed box, and a water outlet is provided on the side of the water outlet pipe. The water outlet pipe is fixed to the filter membrane through a connector.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. During filtration, the spiral characteristics of the spiral plate are used to guide the water flow, thereby improving the stability of the water flow on the surface of the filter membrane and improving the filtration effect.

[0017] 2. During cleaning, the spiral characteristics of the spiral plate are utilized. The upward pull retracts to rub and clean the inner filter membrane, while the downward press expands to rub and clean the outer filter membrane. This process treats the surface of the filter membrane, reduces the frequency of maintenance, and improves the operating efficiency of the equipment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an integrated MBR domestic wastewater treatment device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the external structure of the sealed box of the integrated MBR domestic sewage treatment device described in this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the sealed box of the integrated MBR domestic sewage treatment device described in this utility model;

[0022] Figure 4 This is a schematic diagram of the reset mechanism structure of the integrated MBR domestic sewage treatment device described in this utility model;

[0023] Figure 5 This is a schematic diagram of the filter membrane structure of an integrated MBR domestic wastewater treatment device according to this utility model;

[0024] Figure 6 This is a schematic diagram of the cleaning mechanism structure of an integrated MBR domestic sewage treatment device according to this utility model;

[0025] Figure 7 This is a schematic diagram of the spiral plate and filter membrane structure of an integrated MBR domestic sewage treatment device according to this utility model.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Sealing mechanism; 2. Water inlet mechanism; 3. Water outlet mechanism; 4. Reset mechanism; 5. Cleaning mechanism; 6. Filter membrane; 11. Sealing box; 12. Squeezing box; 21. Water inlet; 22. Support plate; 31. Water outlet; 32. Water outlet pipe; 41. Fixing sleeve; 42. Squeezing piston; 43. Base plate; 44. Reset spring; 51. Floating plate; 52. Spiral plate. Detailed Implementation

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] like Figures 1-7 As shown, an integrated MBR domestic wastewater treatment device includes a sealing mechanism 1 and a filter membrane 6. The filter membrane 6 is installed inside the sealing mechanism 1. It also includes a cleaning mechanism 5 that assists in cleaning the filter membrane 6 by shaking it under water pressure. The upper end of the sealing mechanism 1 is connected to an outlet mechanism 3, and the bottom of the sealing mechanism 1 is connected to an inlet mechanism 2. The filter membrane 6 is installed in the center of the sealing mechanism 1. The filter membrane 6 is arranged in an array of several groups. The cleaning mechanism 5 is slidably connected to the inner side of each group of filter membranes 6. The top of the cleaning mechanism 5 is connected to a reset mechanism 4 for floating up and down under water pressure.

[0032] The cleaning mechanism 5 includes a floating plate 51 and a spiral plate 52. The floating plate 51 is sleeved on the water outlet pipe 32 of the water outlet mechanism 3, and the floating plate 51 is slidably connected to the water outlet pipe 32. The bottom of the floating plate 51 is connected to the spiral plate 52, and the spiral plate 52 is slidably connected to the inside of the filter membrane 6.

[0033] The reset mechanism 4 includes a fixed sleeve 41, which is fixedly connected to the upper end of the sealing box 11 of the sealing mechanism 1. A base plate 43 is slidably connected to the top of the inner side of the sealing box 11. A compression piston 42 is provided on the upper end of the base plate 43 corresponding to the position of the fixed sleeve 41. The compression piston 42 is slidably connected inside the fixed sleeve 41. The top of the compression piston 42 and the fixed sleeve 41 are engaged by a reset spring 44. The bottom of the base plate 43 is fixedly connected to the floating plate 51.

[0034] In this embodiment, each group of filter membranes 6 is provided with a plurality of them, and each spiral plate 52 is wrapped around the middle of the same group of filter membranes 6, with the spiral plate 52 and the filter membrane 6 in frictional engagement.

[0035] In this embodiment, the spiral plate 52 has a spiral structure, and the inner material of the spiral plate 52 is copper sheet. The copper sheet of the spiral plate 52 is wrapped with a plastic layer. The spiral plate 52 has elasticity and toughness, and the outer plastic layer will not scratch the filter membrane 6.

[0036] In this embodiment, the bottom of the spiral plate 52 is fixedly connected to the support plate 22 of the water inlet mechanism 2 to ensure the bottom is fixed and to provide a positioning point.

[0037] In this embodiment, the support plate 22 is fixed to the filter membrane 6 and the sealing box 11, and the side of the sealing box 11 is formed with a water inlet 21 corresponding to the position of the support plate 22.

[0038] In this embodiment, the base plate 43 and the sealing box 11 are slidably fitted together, and a rubber ring is provided on the mating end face of the base plate 43 and the sealing box 11 to ensure a sealing fit between the base plate 43 and the sealing box 11, and to more effectively adapt to the pressure inside the sealing box 11.

[0039] In this embodiment, the water outlet pipe 32 is fixed inside the sealed box 11, and the water outlet pipe 32 is provided with a corresponding water outlet 31 on its side. The water outlet pipe 32 is fixed to the filter membrane 6 through a connector.

[0040] Working principle: Connect the inlet 21 to the water inlet and the outlet 31 to the water outlet. Start the water supply connected to the inlet 21. Water flows into the sealed box 11 from the inlet 21. When the pressure inside the sealed box 11 is sufficient, pure water permeates the filter membrane 6 and flows out from the top of the filter membrane 6, the outlet pipe 32, and the outlet 31. When the filter membrane 6 is blocked by external impurities, but the pressure at the inlet remains unchanged, the pressure inside the sealed box 11 fluctuates. The spiral plate 52 on the inner side of the filter membrane 6 can guide the water flow in a spiral manner, improve the orderly impact of the water flow on the surface of the sealed box 11, and improve the filtration effect.

[0041] At this time, the internal pressure of the sealed box 11 increases, which will put pressure on the bottom surface of the bottom plate 43 at the top of the inner side of the sealed box 11. The bottom plate 43 will be squeezed and moved upward. At this time, the floating plate 51 and the spiral plate 52 at the bottom of the bottom plate 43 will also be driven to float upward. Since the spiral plate 52 is a spiral structure, according to the spiral characteristics, when the spiral structure of the spiral plate 52 is stretched, it will shrink inward. At this time, the shrinking and stretched spiral plate 52 will squeeze the inner part of the filter membrane 6. At the same time, due to the stretching of the spiral plate 52, the spiral part will rub against the inner filter membrane 6. At the same time, because the inner space becomes smaller, the filter membranes 6 will also rub against each other, so that the impurities on the surface of the filter membrane 6 are rubbed off, thereby cleaning.

[0042] After the filter membrane 6 is cleaned, surface impurities fall off, the permeability increases, the internal pressure of the sealed box 11 decreases, the reset spring 44 applies downward pressure to squeeze the piston 42, the bottom plate 43, the floating plate 51, and the spiral plate 52 to move downward, and the spiral plate 52 resets. During the reset, due to the spiral characteristics, it will expand outward, rubbing and friction on the outer filter membrane 6, thereby cleaning the outer filter membrane 6.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An integrated MBR domestic wastewater treatment device, comprising a sealing mechanism (1) and a filter membrane (6), wherein the filter membrane (6) is installed within the sealing mechanism (1), characterized in that: It also includes a cleaning mechanism (5) that assists in cleaning the filter membrane (6) after it shakes due to water pressure. The upper end of the sealing mechanism (1) is connected to a water outlet mechanism (3), and the bottom of the sealing mechanism (1) is connected to a water inlet mechanism (2). The filter membrane (6) is installed in the center of the sealing mechanism (1). The filter membrane (6) is arranged in an array of several groups. The cleaning mechanism (5) is slidably connected to the inner side of each group of filter membranes (6). The top of the cleaning mechanism (5) is connected to a reset mechanism (4) for floating up and down due to water pressure. The cleaning mechanism (5) includes a floating plate (51) and a spiral plate (52). The floating plate (51) is sleeved on the water outlet pipe (32) of the water outlet mechanism (3), and the floating plate (51) is slidably connected to the water outlet pipe (32) up and down. The bottom of the floating plate (51) is connected to the spiral plate (52), and the spiral plate (52) is slidably connected to the inside of the filter membrane (6). The reset mechanism (4) includes a fixed sleeve (41), which is fixedly connected to the upper end of the sealing box (11) of the sealing mechanism (1). A base plate (43) is slidably connected to the top of the inner side of the sealing box (11). A compression piston (42) is provided on the upper end of the base plate (43) corresponding to the position of the fixed sleeve (41). The compression piston (42) is slidably connected inside the fixed sleeve (41). The top of the compression piston (42) and the fixed sleeve (41) are engaged by a reset spring (44). The bottom of the base plate (43) is fixedly connected to the floating plate (51).

2. The integrated MBR domestic wastewater treatment device according to claim 1, characterized in that: Each set of filter membranes (6) is provided with a plurality of them, and each spiral plate (52) is wrapped around the middle of the same set of filter membranes (6), and the spiral plate (52) is in frictional engagement with the filter membrane (6).

3. The integrated MBR domestic wastewater treatment device according to claim 2, characterized in that: The spiral plate (52) has a spiral structure, and the internal material of the spiral plate (52) is copper sheet, and the copper sheet of the spiral plate (52) is wrapped with a plastic layer.

4. The integrated MBR domestic wastewater treatment device according to claim 3, characterized in that: The bottom of the spiral plate (52) is fixedly connected to the support plate (22) of the water inlet mechanism (2).

5. The integrated MBR domestic wastewater treatment device according to claim 4, characterized in that: The support plate (22) is fixed to the filter membrane (6) and the sealing box (11), and the sealing box (11) has an inlet (21) formed on its side corresponding to the position of the support plate (22).

6. The integrated MBR domestic wastewater treatment device according to claim 5, characterized in that: The base plate (43) is slidably fitted with the sealing box (11), and a rubber ring is provided on the mating end face of the base plate (43) and the sealing box (11).

7. An integrated MBR domestic wastewater treatment device according to claim 6, characterized in that: The water outlet pipe (32) is fixed inside the sealed box (11), and the water outlet pipe (32) has a corresponding water outlet (31) on its side. The water outlet pipe (32) is fixed to the filter membrane (6) through a connector.

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