Flexible flat panel membrane stack automatic cleaning device

Abstract

The utility model discloses a flexible flat plate membrane stack automatic cleaning device, and the flexible flat plate membrane stack includes a plurality of flat plate membranes, and the flat plate membrane is fixedly installed on the stack frame, and the automatic cleaning device includes a hanging bracket, and the hanging bracket below is equipped with lifting frame and positioning frame in proper order, and the lifting frame is installed with the translation frame, and the translation frame below is equipped with the cleaning roller, and the both sides of cleaning roller are equipped with the plug -in board respectively, and the cleaning roller is rotated by rotary drive mechanism drive, and the translation frame is driven on the lifting frame horizontal movement by translation drive mechanism, and the lifting frame is driven between the hanging bracket and positioning frame and moves up and down by lifting drive mechanism. The utility model discloses through the automation of lifting, translation and the automatic action of rotating cleaning roller, has realized to flexible flat plate membrane stack efficient, thorough mechanization cleaning, has replaced the traditional inefficient manual cleaning significantly. The device structure is stable, and the degree of automation is high, and the maintenance cost and work intensity are reduced greatly, and it is favorable for prolonging the service life of flat plate membrane.

Description

Technical Field

[0001] This utility model belongs to the field of flat sheet membrane cleaning technology, specifically relating to an automatic cleaning device for flexible flat sheet membrane stacks. Background Technology

[0002] Flexible sheet membrane (MBR) is one of the core technologies in wastewater treatment. During long-term operation, pollutants inevitably accumulate on the surface of the membrane fibers, forming a filter cake layer. This leads to decreased membrane flux and increased transmembrane pressure, severely impacting system efficiency and stability. Currently, cleaning of sheet membrane modules mainly relies on manual rinsing or chemical soaking, both of which have significant drawbacks. Manual cleaning is labor-intensive, inefficient, and produces uneven cleaning results, while also posing safety hazards. Frequent chemical cleaning is not only costly but can also cause irreversible damage to the membrane material, shortening its lifespan. Both methods require shutdown, resulting in long downtime. Existing technologies utilize aeration to agitate the sheet membrane and reduce pollutant accumulation, but this only delays the effect.

[0003] While some mechanical cleaning devices exist in the prior art, they generally suffer from problems such as low positioning accuracy, low automation, and limited cleaning coverage, making it difficult to achieve efficient, thorough, and non-destructive physical cleaning of densely arranged flat sheet membrane modules. Therefore, there is an urgent need in the field for an automated device capable of automatic and precise positioning and efficient physical cleaning of both sides of the membrane sheets to overcome the shortcomings of existing technologies, reduce maintenance costs, and ensure the long-term stable operation of membrane stacks. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic cleaning device for flexible flat sheet membrane stacks. The flexible flat sheet membrane stack includes several flat sheet membranes evenly spaced. The flat sheet membranes are fixedly installed on a stacking frame. The automatic cleaning device includes a hanger. A lifting frame and a positioning frame are arranged sequentially below the hanger. A translation frame is installed on the lifting frame. A cleaning roller is arranged below the translation frame. Insert plates are arranged on both sides of the cleaning roller. The cleaning roller is rotatably connected to the lower end of the insert plate. The cleaning roller is driven to rotate by a rotation drive mechanism. The upper end of the insert plate is fixedly connected to the translation frame. The translation frame is driven to move horizontally on the lifting frame by a translation drive mechanism. The lifting frame is driven to move up and down between the hanger and the positioning frame by a lifting drive mechanism. Several positioning posts are provided on the stacking frame. Several positioning holes are provided on the positioning frame for the positioning posts to be inserted.

[0005] As a preferred embodiment of the above technical solution, the lifting frame includes two lifting plates, the hanger and the positioning frame are fixedly connected by several vertical guide rods, the lifting plates are respectively provided with vertical guide holes for the vertical guide rods to move through, the two lifting plates are fixedly connected by several horizontal guide rods, and the translation frame is provided with several horizontal guide holes for the horizontal guide rods to move through.

[0006] As a preferred embodiment of the above technical solution, the lifting drive mechanism includes an electric push rod mounted on the hanger, the output shaft of the electric push rod is fixedly connected to a connecting rod, and the two ends of the connecting rod are respectively fixedly connected to the middle of the lifting plate. The translation drive mechanism includes a first motor and a lead screw, the two ends of the lead screw are respectively rotatably connected to the lifting plate, the first motor drives the lead screw to rotate, and a lead screw pair is provided on the lead screw, which is fixedly connected to the translation frame.

[0007] As a preferred embodiment of the above technical solution, the rotary drive mechanism includes a second motor, which is mounted on the translation frame and drives the cleaning roller to rotate via a chain.

[0008] As a preferred embodiment of the above technical solution, a number of cotton strips are evenly spaced on the circumferential surface of the cleaning roller.

[0009] As a preferred embodiment of the above technical solution, a plurality of aeration pipes are provided below the flat sheet membrane, and aeration holes are provided on the aeration pipes. The aeration pipes are fixedly connected to the stacking frame.

[0010] As a preferred embodiment of the above technical solution, the hanger is provided with a plurality of lifting lugs, the positioning hole is provided with a flared guide portion, and the upper end of the positioning column is provided with a tapered guide portion.

[0011] The beneficial effects of this invention are as follows: This invention achieves efficient and thorough mechanized cleaning of flexible flat-sheet membrane stacks through the automated coordinated actions of lifting, translating, and rotating cleaning rollers, significantly replacing traditional, inefficient manual cleaning. The cooperation between the positioning posts and positioning holes ensures operational accuracy and avoids damage to the membrane. The cleaning process does not require machine downtime, ensuring continuous filtration. The cleaning rollers, in conjunction with the aeration pipes, effectively remove contaminants, improving cleaning effect and efficiency. The device has a stable structure, a high degree of automation, and significantly reduces maintenance costs and workload, thus extending the service life of the flat-sheet membrane. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0013] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] 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.

[0016] like Figure 1 As shown, an automatic cleaning device for flexible flat sheet membrane stacks includes several evenly spaced flat sheet membranes 1, which are fixedly mounted on a stacking frame 2. The automatic cleaning device includes a hanger 3, with a lifting frame 4 and a positioning frame 5 arranged sequentially below the hanger 3. A translation frame 6 is mounted on the lifting frame 4, and a cleaning roller 7 is located below the translation frame 6. Insert plates 8 are respectively provided on both sides of the cleaning roller 7. The cleaning roller 7 is rotatably connected to the lower end of the insert plates 8 and is driven to rotate by a rotary drive mechanism. The upper end of the insert plates 8 is fixedly connected to the translation frame 6, which is driven to move horizontally on the lifting frame 4 by a translation drive mechanism. The lifting frame 4 is driven to move vertically between the hanger 3 and the positioning frame 5 by a lifting drive mechanism. Several positioning posts 9 are provided on the stacking frame 2, and several positioning holes 10 are provided on the positioning frame 5 for the positioning posts 9 to be inserted. In use, the automatic cleaning device is first moved above the flexible flat sheet membrane stack using a hanger, and then the automatic cleaning device is lowered so that the positioning posts 9 are inserted into the corresponding positioning holes 10, thus completing the positioning and fixing of the automatic cleaning device. The translation drive mechanism moves the translation frame 6 to a specific position, while the lifting drive mechanism lowers the lifting frame 4, causing the cleaning roller 7 to descend. Simultaneously, the rotation drive mechanism drives the cleaning roller 7 to rotate, allowing the highly rotating cleaning roller 7 to contact the surface of the flat film 1 for cleaning. During the cleaning process, the lifting frame 4 moves up and down, causing the cleaning roller 7 to move up and down as well. After one side of the flat film 1 is cleaned, the translation frame 6 moves to clean the other side or another flat film 1.

[0017] Furthermore, the lifting frame 4 includes two lifting plates 11, and the hanger 3 and positioning frame 5 are fixedly connected by several vertical guide rods 12. Each lifting plate 11 has a vertical guide hole 13 through which the vertical guide rods 12 move. The two lifting plates 11 are fixedly connected by several horizontal guide rods 14, and the translation frame 6 has several horizontal guide holes 15 through which the horizontal guide rods 14 move. The cooperation of the guide rods and guide holes makes the movement of the lifting plate 11 or the translation frame 6 more stable.

[0018] Furthermore, the lifting drive mechanism includes an electric push rod 16 mounted on the hanger 3. The output shaft of the electric push rod 16 is fixedly connected to a connecting rod 17. Both ends of the connecting rod 17 are fixedly connected to the middle of the lifting plate 11. The translation drive mechanism includes a first motor 18 and a lead screw 19. Both ends of the lead screw 19 are rotatably connected to the lifting plate 11. The first motor 18 drives the lead screw 19 to rotate. A lead screw pair is provided on the lead screw 19, and the lead screw pair is fixedly connected to the translation frame 6. The electric push rod 16 controls the lifting plate 11 to descend, driving the cleaning roller 7 to descend to one side of the flat film 1. The rotational displacement control of the lead screw 19 is precise, enabling the cleaning roller 7 to accurately move to the designated position.

[0019] Furthermore, the rotary drive mechanism includes a second motor 20, which is mounted on the translation frame 6. The second motor 20 drives the cleaning roller 7 to rotate via a chain. Both the second motor 20 and the first motor 18 require some degree of waterproofing treatment, or motors with good waterproofing properties should be selected.

[0020] Furthermore, several cotton strips are evenly spaced on the circumferential surface of the cleaning roller 7. The cotton strips are swung to clean the surface of the flat film 1, increasing the cleaning range.

[0021] Furthermore, a plurality of aeration pipes 21 are provided below the flat sheet membrane 1, and the aeration pipes 21 are provided with aeration holes. The aeration pipes 21 are fixedly connected to the stacking frame 2. During the cleaning process of the flat sheet membrane 1, the aeration pipes 21 work together to aerate, causing the flat sheet membrane 1 to be continuously disturbed, which, together with the cleaning roller 7, performs surface cleaning, thereby improving cleaning efficiency and cleaning effect.

[0022] Furthermore, the hanger 3 is provided with several lifting lugs 22, the positioning hole 10 is provided with a flared guide portion, and the upper end of the positioning post 9 is provided with a tapered guide portion 24. The lifting lugs 22 facilitate the lifting of the entire automatic cleaning device using lifting equipment such as gantry cranes. The flared guide portion and the tapered guide portion 24 facilitate positioning, making it easy for the positioning post 9 to be smoothly inserted into the positioning hole 10.

[0023] It is worth mentioning that the technical features of motors, lead screws, electric push rods, etc. involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be conventionally selected in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0024] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. An automatic cleaning device for flexible flat sheet membrane stacks, wherein the flexible flat sheet membrane stack comprises a plurality of evenly spaced flat sheet membranes, the flat sheet membranes being fixedly mounted on a stacking rack, characterized in that, The automatic cleaning device includes a hanger, with a lifting frame and a positioning frame arranged sequentially below the hanger. A translation frame is installed on the lifting frame, and a cleaning roller is located below the translation frame. Insert plates are provided on both sides of the cleaning roller. The cleaning roller is rotatably connected to the lower end of the insert plates. The cleaning roller is driven to rotate by a rotary drive mechanism. The upper end of the insert plates is fixedly connected to the translation frame. The translation frame is driven to move horizontally on the lifting frame by a translation drive mechanism. The lifting frame is driven to move up and down between the hanger and the positioning frame by a lifting drive mechanism. Several positioning posts are provided on the stacking frame, and several positioning holes are provided on the positioning frame for the positioning posts to be inserted.

2. The automatic cleaning device for flexible flat membrane stacks as described in claim 1, characterized in that, The lifting frame includes two lifting plates, and the hanger and positioning frame are fixedly connected by several vertical guide rods. The lifting plates are respectively provided with vertical guide holes for the vertical guide rods to move through. The two lifting plates are fixedly connected by several horizontal guide rods, and the translation frame is provided with several horizontal guide holes for the horizontal guide rods to move through.

3. The automatic cleaning device for flexible flat membrane stacks as described in claim 2, characterized in that, The lifting drive mechanism includes an electric push rod mounted on the hanger. The output shaft of the electric push rod is fixedly connected to a connecting rod. The two ends of the connecting rod are respectively fixedly connected to the middle of the lifting plate. The translation drive mechanism includes a first motor and a lead screw. The two ends of the lead screw are respectively rotatably connected to the lifting plate. The first motor drives the lead screw to rotate. A lead screw pair is provided on the lead screw, and the lead screw pair is fixedly connected to the translation frame.

4. The automatic cleaning device for flexible flat membrane stacks as described in claim 1, characterized in that, The rotary drive mechanism includes a second motor, which is mounted on the translation frame and drives the cleaning roller to rotate via a chain.

5. The automatic cleaning device for flexible flat membrane stacks as described in claim 1, characterized in that, Several cotton strips are evenly spaced on the circumferential surface of the cleaning roller.

6. The automatic cleaning device for flexible flat-sheet membrane stacks as described in claim 1, characterized in that, Several aeration pipes are provided below the flat sheet membrane, and aeration holes are provided on the aeration pipes. The aeration pipes are fixedly connected to the stacking frame.

7. The automatic cleaning device for flexible flat membrane stacks as described in claim 1, characterized in that, The hanger is provided with several lifting lugs, the positioning hole is provided with a flared guide part, and the upper end of the positioning column is provided with a tapered guide part.

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