MBR membrane cleaning device

Abstract

The utility model relates to the field of MBR membrane cleaning, concretely to a kind of MBR membrane cleaning device, including cleaning pool, cleaning device is set in the upper of cleaning pool, the cleaning device includes adjusting assembly and cleaning assembly, the cleaning assembly includes first mounting plate, and the pipeline connected with the first mounting plate, the pipeline is connected with water pump and is provided with spray head, the spray head has multiple and is respectively communicated in the two sides of pipeline;The adjusting assembly drives the cleaning assembly to move in vertical direction, and the spray head of two sides respectively sprays water to adjacent two groups of MBR membrane cleaning simultaneously.The utility model is by from top to bottom or from bottom to top when flushing MBR membrane, avoid the damage caused by large water flow impact, avoid the damage situation such as membrane filament breakage when artificial flushing occurs;The area of flushing covers the surface of entire membrane plate, so that the middle part of membrane can also be effectively flushed, more degree of place impurity on membrane surface, reduce subsequent processing time.

Description

Technical Field

[0001] This utility model relates to the field of MBR membrane cleaning technology, and in particular to an MBR membrane cleaning device. Background Technology

[0002] MBR, or membrane bioreactor, is a novel water treatment technology that combines membrane separation units with biological treatment units. It is applied in wastewater treatment, water resource reuse, and other fields. It primarily utilizes membrane separation technology to retain substances such as proteins, microorganisms, and silt in wastewater, effectively achieving solid-liquid separation. This significantly improves effluent quality and reduces the reactor's footprint.

[0003] The MBR membrane is a critical component of the MBR system; however, impurities filtered by the membrane easily deposit on its surface, leading to a decrease in permeate flow. Frequent cleaning is necessary to ensure stable membrane flux. Current technologies for MBR membrane cleaning categorize it into online cleaning and offline cleaning. Online cleaning is performed while the membrane module is running, without requiring the module to be removed. Online cleaning is simple to operate and suitable for routine maintenance and cleaning of minor fouling, delaying membrane fouling and restoring flux. Offline cleaning requires removing the membrane module and transferring it to a pre-designated cleaning device. Offline cleaning is suitable when online cleaning cannot restore membrane performance and can significantly improve membrane performance.

[0004] Offline cleaning first requires initial rinsing of the MBR membrane using a high-pressure water pump to remove most impurities, facilitating further processing. In existing technologies, rinsing requires manual operation. However, MBR membranes typically have significant height and width, and the spacing between adjacent rows is limited. Manual rinsing can only reach the edges of the membrane, not the center, resulting in limited rinsing effectiveness and hindering further processing. Furthermore, MBR membranes are usually composed of numerous hollow fiber filaments, typically arranged vertically. During manual rinsing, the excessive water flow causes violent shaking of the filaments, easily leading to breakage and other damage. Additionally, rinsing from the side can cause uneven filament arrangement, affecting membrane lifespan. Therefore, effectively rinsing MBR membranes while avoiding damage and other lifespan-affecting conditions is a crucial issue that technical personnel need to address. Utility Model Content

[0005] The purpose of this invention is to provide an MBR membrane cleaning device to solve the problems of poor rinsing effect and damage caused by manual rinsing of MBR membranes in the prior art.

[0006] The technical solution of this utility model is: an MBR membrane cleaning device, including a cleaning tank, with the cleaning device disposed above the cleaning tank. The cleaning device includes an adjustment component and a cleaning component. The cleaning component includes a first mounting plate and a pipe connected to the first mounting plate. The pipe is connected to a water pump and is equipped with nozzles. There are multiple nozzles, which are respectively connected to both sides of the pipe. While the adjustment component drives the cleaning component to move in the vertical direction, the nozzles on both sides spray water to clean two adjacent sets of MBR membranes.

[0007] Preferably, brushes are provided on both sides of the first mounting plate, with the brushes on each side positioned above and below the nozzle. The end of the brush extends beyond the end of the nozzle.

[0008] Preferably, the adjustment assembly includes a first drive assembly disposed above the clear water tank and driven horizontally, a second drive assembly connected to the first drive assembly and driven vertically, and a third drive assembly connected to the second drive assembly and driven vertically, wherein the first mounting plate is connected to the third drive assembly.

[0009] Preferably, the first drive assembly includes a first driver, a first lead screw connected to the first driver, a first connecting plate threadedly connected to the first lead screw, and a first guide rod arranged parallel to the first lead screw, wherein the first guide rod passes through the first connecting plate; The first driver drives the first lead screw to rotate, which in turn drives the first connecting plate to move on the first guide rod.

[0010] Preferably, the second drive assembly includes a second driver disposed on the first connecting plate and a second lead screw disposed vertically and passing through the first connecting plate; The second lead screw is provided with a first transmission wheel, which is threadedly connected to the second lead screw. The second driver is connected to the first transmission wheel via a belt. The second driver drives the first transmission wheel to rotate, which in turn drives the second lead screw to move in the vertical direction.

[0011] Preferably, the third drive assembly includes a second connecting plate, a third driver disposed on the second connecting plate, and a third lead screw that is vertically arranged and whose lower end passes through the second connecting plate and connects to the first mounting plate; The third lead screw is provided with a second transmission wheel, which is threadedly connected to the third lead screw. The third driver is connected to the second transmission wheel via a belt. The third driver drives the second transmission wheel to rotate, which in turn drives the third lead screw to move in the vertical direction.

[0012] Preferably, a second guide rod is provided through the first connecting plate, the second guide rod is vertically arranged and its lower end is connected to the second connecting plate.

[0013] Preferably, a third guide rod is provided through the second connecting plate, the third guide rod is vertically arranged and its lower end is connected to the first mounting plate.

[0014] Compared with the prior art, the advantages of this utility model are: (1) In this utility model, the MBR membrane is flushed from top to bottom or from bottom to top, and multiple nozzles are flushed at close range, making the flushing process more stable and avoiding damage caused by large water flow impact, and avoiding damage such as membrane fiber breakage during manual flushing; the flushing area covers the entire surface of the membrane plate, so that the middle part of the membrane can also be effectively flushed, removing impurities from the membrane surface to a greater extent and reducing subsequent processing time. In addition, the surface of the membrane can be brushed with a brush while rinsing to further enhance the removal of impurities. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a side view of the MBR membrane cleaning device of this utility model. Figure 2 This is a front view of the MBR membrane cleaning device described in this utility model. Figure 1 ; Figure 3 This is a front view of the MBR membrane cleaning device described in this utility model. Figure 2 .

[0016] Among them: cleaning tank 1; Cleaning device 2; Adjustment assembly 3, first drive assembly 31, first driver 311, first lead screw 312, first connecting plate 313, first guide rod 314, second drive assembly 32, second driver 321, second lead screw 322, first transmission wheel 323, second guide rod 324, third drive assembly 33, second connecting plate 331, third driver 332, third lead screw 333, second transmission wheel 334, third guide rod 335; Cleaning component 4, first mounting plate 41, pipe 42, nozzle 43, brush 44; MBR membrane 5. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to specific embodiments: like Figures 1-3As shown, this utility model is applied to the cleaning of MBR membranes. The hollow fiber MBR membrane is composed of a large number of hollow fiber filaments, arranged in multiple curtain-like plate-like intervals. The MBR membrane is cleaned periodically or offline when online cleaning cannot guarantee membrane flux. During offline cleaning, the entire MBR membrane is hoisted into the cleaning tank. Before chemical treatment in the clear water tank, the surface of the MBR membrane needs to be preliminarily cleaned to remove surface-adhered impurities. The cleaning assembly is driven downwards between two MBR membrane curtains by the second and third drive components, simultaneously rinsing the membrane surface with nozzles and brushing with brushes; the cleaning assembly is driven by the first drive component to clean each MBR membrane curtain individually. Specifically: An MBR membrane cleaning device includes a cleaning tank 1 and a cleaning device 2 disposed above the cleaning tank 1. The height of the cleaning tank 1 is greater than the height of the MBR membrane to prevent turbulence of impurities during rinsing and to ensure complete immersion during subsequent chemical soaking treatment. The cleaning device 2 can be fixedly disposed above the cleaning tank 1, or it can be made movable, provided that it does not interfere with the installation of the MBR membrane.

[0018] The cleaning device 2 includes an adjusting component 3 and a cleaning component 4. The cleaning component 4 includes a first mounting plate 41 and a pipe 42 connected to the first mounting plate 41. The pipe 42 is connected to a water pump (not shown in the figure) and is equipped with nozzles 43. There are multiple nozzles 43, which are respectively connected to both sides of the pipe 42. While the adjusting component 3 drives the cleaning component 4 to move vertically, the nozzles 43 on both sides spray water to clean the two adjacent sets of MBR membranes. Brushes 44 are provided on both sides of the first mounting plate 41, with each brush 44 positioned above and below the nozzles 43.

[0019] In this embodiment, clean water is injected into pipe 42 by a water pump, and then sprayed out through nozzle 43. The specifications of the water pump or nozzle 43 can be selected to ensure that the water sprayed from the nozzle 43 has a certain pressure, thus guaranteeing effective rinsing. The ends of the brushes 44 extend beyond the ends of the nozzle 43, and the distance between the ends of the brushes 44 on both sides should be greater than the distance between two adjacent MBR curtains, so that the MBR membrane can be brushed during rinsing.

[0020] The adjustment component 3 includes a first drive component 31 disposed above the clear water tank and driven horizontally, a second drive component 32 connected to the first drive component 31 and driven vertically, and a third drive component 33 connected to the second drive component 32 and driven vertically. The first mounting plate 41 is connected to the third drive component 33.

[0021] The first drive assembly 31 includes a first driver 311, a first lead screw 312 connected to the first driver 311, a first connecting plate 313 threadedly connected to the first lead screw 312, and a first guide rod 314 arranged parallel to the first lead screw 312, the first guide rod 314 passing through the first connecting plate 313; the first driver 311 drives the first lead screw 312 to rotate, thereby driving the first connecting plate 313 to move on the first guide rod 314. The second drive assembly 32 includes a second driver 321 disposed on the first connecting plate 313, and a second lead screw 322 vertically disposed and passing through the first connecting plate 313; a first transmission wheel 323 is disposed on the second lead screw 322, the first transmission wheel 323 being threadedly connected to the second lead screw 322, and the second driver 321 being connected to the first transmission wheel 323 via a belt; the second driver 321 drives the first transmission wheel 323 to rotate, thereby driving the second lead screw 322 to move in the vertical direction. The third drive assembly 33 includes a second connecting plate 331, a third driver 332 disposed on the second connecting plate 331, and a third lead screw 333 vertically disposed and connected to the first mounting plate 41 through the second connecting plate 331 at its lower end; a second transmission wheel 334 is disposed on the third lead screw 333, the second transmission wheel 334 is threadedly connected to the third lead screw 333, and the third driver 332 is connected to the second transmission wheel 334 through a belt; the third driver 332 drives the second transmission wheel 334 to rotate, thereby driving the third lead screw 333 to move in the vertical direction.

[0022] In this embodiment, the first driver, second driver, and third driver can all be motors or other devices capable of driving rotation. The first drive assembly 31 drives the cleaning assembly 4 to move laterally, so that the cleaning assembly 4 passes over two adjacent MBR membrane curtains one by one, so as to clean all MBR membrane curtains one by one. The second drive assembly 32 and the third drive assembly 33 both drive the cleaning assembly 4 to move vertically, and can clean from top to bottom and from bottom to top. A second guide rod 324 is disposed through the first connecting plate 313. The second guide rod 324 is vertically arranged and its lower end is connected to the second connecting plate 331. A third guide rod 335 is disposed through the second connecting plate 331. The third guide rod 335 is vertically arranged and its lower end is connected to the first mounting plate 41. The first guide rod 314, the second guide rod 324, and the third guide rod 335 all play a guiding and balancing role, so as to make the movement of the cleaning assembly 4 more stable.

[0023] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. An MBR membrane cleaning device, characterized in that: The device includes a cleaning tank, and a cleaning device is installed above the cleaning tank. The cleaning device includes an adjustment component and a cleaning component. The cleaning component includes a first mounting plate and a pipe connected to the first mounting plate. The pipe is connected to a water pump and is equipped with nozzles. There are multiple nozzles, which are respectively connected to both sides of the pipe. While the adjustment component drives the cleaning component to move in the vertical direction, the nozzles on both sides spray water to clean two adjacent sets of MBR membranes. The first mounting plate is provided with brushes on both sides, with the brushes on each side positioned above and below the nozzle. The end of the brush extends beyond the end of the nozzle.

2. The MBR membrane cleaning device according to claim 1, characterized in that: The adjustment assembly includes a first drive assembly positioned above the clear water tank with a horizontal drive direction, a second drive assembly connected to the first drive assembly with a vertical drive direction, and a third drive assembly connected to the second drive assembly with a vertical drive direction. The first mounting plate is connected to the third drive assembly.

3. The MBR membrane cleaning device according to claim 2, characterized in that: The first drive assembly includes a first driver, a first lead screw connected to the first driver, a first connecting plate threadedly connected to the first lead screw, and a first guide rod arranged parallel to the first lead screw, wherein the first guide rod passes through the first connecting plate; The first driver drives the first lead screw to rotate, which in turn drives the first connecting plate to move on the first guide rod.

4. The MBR membrane cleaning device according to claim 3, characterized in that: The second drive assembly includes a second driver disposed on the first connecting plate and a second lead screw that is vertically disposed and passes through the first connecting plate; The second lead screw is provided with a first transmission wheel, which is threadedly connected to the second lead screw. The second driver is connected to the first transmission wheel via a belt. The second driver drives the first transmission wheel to rotate, which in turn drives the second lead screw to move in the vertical direction.

5. An MBR membrane cleaning device according to claim 4, characterized in that: The third drive assembly includes a second connecting plate, a third driver disposed on the second connecting plate, and a third lead screw that is vertically arranged and whose lower end passes through the second connecting plate and connects to the first mounting plate. The third lead screw is provided with a second transmission wheel, which is threadedly connected to the third lead screw. The third driver is connected to the second transmission wheel via a belt. The third driver drives the second transmission wheel to rotate, which in turn drives the third lead screw to move in the vertical direction.

6. An MBR membrane cleaning device according to claim 5, characterized in that: A second guide rod is provided through the first connecting plate. The second guide rod is vertically arranged and its lower end is connected to the second connecting plate.

7. An MBR membrane cleaning device according to claim 5, characterized in that: A third guide rod is provided through the second connecting plate. The third guide rod is vertically arranged and its lower end is connected to the first mounting plate.

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