Membrane filtration device for millet vinegar production

By designing the transmission mechanism and filter mechanism of the membrane filtration device, the problems of low filtration efficiency and impurity accumulation in millet vinegar production are solved, and efficient filtration and stable processing are achieved.

CN120189738AInactive Publication Date: 2025-06-24SHANXI WUZHOU SAI FOOD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510317935.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2025-06-24
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the existing millet vinegar production process, the filtration equipment is inefficient. The long-term working of the upper end of the filter end leads to accumulation of impurities, affecting the later filtration efficiency, and may lead to problems of blockage and insufficient sealing.

Method used

A membrane filter device is designed, including a transmission mechanism and a filter mechanism. Through the cooperation of the movable scraper and the mounting spring, the membrane filter plate is effectively cleaned and pressurized, which improves the filtration efficiency and enhances the sealing property.

Benefits of technology

It improves the filtration efficiency in millet vinegar production, avoids impurities accumulation and blockage problems, enhances the sealing property during pressurization, and ensures the stability and efficiency of filtration processing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120189738A_ABST
    Figure CN120189738A_ABST
Patent Text Reader

Abstract

The invention discloses a membrane filtration device for millet vinegar production, and relates to the technical field of millet vinegar processing.The membrane filtration device comprises a processing frame and a filtration mechanism, a working frame is mounted in the middle of the right side of the processing frame, the processing frame is of a cylindrical structure, and the filtration mechanism comprises a membrane filtration plate and a movable mounting rod; membrane filter plates are mounted at the middle upper end and the middle lower end of an inner cavity of the processing frame, movable mounting rods and transmission mechanisms are arranged at the upper ends of the membrane filter plates, each transmission mechanism comprises a rotating disc and a mounting ring groove, and the two rotating discs are mounted in an inner cavity of the working frame at equal intervals. During filtering treatment operation, the upper end of the filtering end is continuously treated, so that the efficiency in the filtering process is improved, the sealing performance in the processing frame in the pressurizing process can be improved, and the situation that impurities are accumulated at the top end of the filtering end due to long-time working of the upper end of the filtering end during filtering operation is avoided; and when the filtering operation is carried out in the later period, the filtering processing efficiency is influenced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of millet vinegar processing, and specifically relates to a membrane filtration device for millet vinegar production. Background Art

[0002] At present, millet vinegar is a traditional famous product in China, which is a kind of vinegar brewed with millet as the main raw material. The production process of millet vinegar mainly includes steps such as raw material treatment, fermentation, and aging. Through the natural fermentation of microorganisms, the starch in millet is decomposed into sugars, then the sugars are converted into ethanol by yeast, and finally the ethanol is converted into acetic acid by acetic acid bacteria; When performing filtration operations, common filtration treatment equipment all performs filtration operations by the action of its own gravity. However, during the treatment process, not only is the efficiency low, but after a long time, a large amount of impurities will accumulate at the upper end of the filtration end. When the impurities accumulate too much, it will cause the inability to perform filtration in the later stage, and the processing of the filtration end is not stable enough. Summary of the Invention

[0003] The purpose of the present invention is to provide a membrane filtration device for millet vinegar production to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A membrane filtration device for millet vinegar production, including a processing frame, a working frame is installed in the middle of the right side of the processing frame, and the processing frame is in a cylindrical structure; A filtration mechanism, the filtration mechanism includes a membrane filter plate and a movable mounting rod. The upper end and the middle and lower ends of the inner cavity of the processing frame are both installed with membrane filter plates, and movable mounting rods are arranged at the upper ends of the membrane filter plates; A transmission mechanism, the transmission mechanism includes a rotating disk and a mounting ring groove. Two rotating disks are equidistantly installed in the inner cavity of the working frame, and mounting ring grooves are opened around the outer circumference of the rotating disk.

[0005] Preferably, the filtration mechanism further includes a movable scraper, a mounting top rod, a mounting spring, a movable notch, and a sealing sleeve. Movable scrapers are arranged at the bottom ends of the movable mounting rods. Movable notches are opened in the middle and on both sides of the top ends of the movable scrapers. Mounting top rods are slidably installed in the inner cavities of the movable notches. The top ends of the mounting top rods are connected to the bottom ends of the movable mounting rods. Mounting springs are installed at the bottom ends of the mounting top rods, and the bottom ends of the mounting springs are connected to the bottom ends of the inner cavities of the movable notches.

[0006] Preferably, the mounting top rod is in an inverted T-shaped structure. Mounting round holes are opened at the bottom ends of the mounting top rods. The mounting springs are made of spring steel. Sealing sleeves are installed around the mounting top rods at the top ends of the movable scrapers. The top ends of the sealing sleeves are connected to the bottom ends of the movable mounting rods. The movable scrapers and the sealing sleeves are both made of rubber.

[0007] Preferably, the transmission mechanism further includes a single-phase motor, a rotating rod, small electromagnetic blocks, an annular guide plate, a movable ring strip, a limiting ring strip, and an annular magnetic strip. A single-phase motor is installed at the bottom end of the inner cavity of the working frame. The output shaft at the top of the single-phase motor is installed with a rotating rod. The top of the rotating rod passes through the middle of the rotating disk. A number of small electromagnetic blocks are equidistantly installed around the inner cavity of the installation ring groove. An annular guide plate is installed on one side inside the installation ring groove. A control panel is installed at the bottom end of the front side of the working frame. The single-phase motor and the small electromagnetic blocks are electrically connected to the control panel. Movable ring strips are installed around the inner cavity of the processing frame above the membrane filter plate. Both ends of the movable installation rod are connected to the inner sides of both ends of the movable ring strip. Limiting ring strips are installed around the inner cavity of the processing frame at positions opposite to the movable ring strips. An annular magnetic strip is installed around the outer circumference of the movable ring strip.

[0008] Preferably, annular notches are formed in the inner cavity of the processing frame around the positions opposite to the movable ring strips. A number of balls are equidistantly installed around the outer circumference of the movable ring strip. Movable arc openings are formed on the right side of the processing frame at positions opposite to the rotating disks. The left sides of the rotating disks are located inside the movable arc openings. Installation openings are formed in the middle of the rotating disks.

[0009] Preferably, the device further includes a pressurizing mechanism. The pressurizing mechanism includes a turbofan head, a converging frame, a connecting pipe, and an arc-shaped filter plate. A converging frame is installed at the top end of the inner cavity of the working frame. The turbofan head is installed at the top of the rotating rod. The turbofan head is located inside the converging frame. Connecting holes are formed at the top of the working frame and the upper right end of the processing frame. A connecting pipe is installed at the top of the working frame at positions opposite to the connecting holes. The top of the connecting pipe is connected to the upper right end of the processing frame. The top of the converging frame is in a horn-shaped structure.

[0010] Preferably, an adding frame head is installed at the top of the processing frame. An adding through groove is formed at the top of the processing frame. An arched filter screen is installed at the bottom end of the inner cavity of the processing frame. A discharge through opening is formed at the bottom of the processing frame. A discharge valve head is installed at the bottom of the processing frame.

[0011] Preferably, installation slots are formed on the right side of the working frame at positions opposite to the rotating disks. A cleaning brush plate is movably installed on one side of the inner cavity of each installation slot. The cleaning brush plate is in an arc-shaped structure. A number of pushing spring rods are installed on the right side of the cleaning brush plate. The right ends of the pushing spring rods are connected to the inner cavity of the installation slot.

[0012] Compared with the prior art, the beneficial effects of the present invention are: Through the transmission mechanism and the filtration mechanism, when performing the filtration operation, by continuously processing the upper end of the filtration end, not only the efficiency during filtration is improved, but also the sealing performance inside the processing frame during the pressurization process is increased. This avoids the situation where during the filtration operation, the upper end of the filtration end works for a long time, resulting in the accumulation of impurities at the top of the filtration end. And when the filtration operation is carried out later, it will affect the efficiency of filtration processing, avoid blockage during use and inability to perform filtration, and also avoid the insufficient sealing performance inside the processing frame during the pressurization process, resulting in the filtration air pressure not meeting the requirements and reducing the efficiency of filtration processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 is a structural diagram of a horizontal cross-section of the processing frame and the working frame provided by an embodiment of the present invention; Figure 3 is a structural diagram of a partial right-side cross-section of the processing frame provided by an embodiment of the present invention; Figure 4 is provided by an embodiment of the present invention Figure 2 an enlarged structural diagram of part A therein; Figure 5 is provided by an embodiment of the present invention Figure 2 an enlarged structural diagram of part B therein.

[0014] In the figure: 1, processing frame; 2, working frame; 3, filtration mechanism; 301, membrane filter plate; 302, movable scraper; 303, movable mounting rod; 304, mounting top rod; 305, mounting spring; 306, movable notch; 307, sealing sleeve; 4, transmission mechanism; 401, single-phase motor; 402, rotating rod; 403, rotating disk; 404, mounting ring groove; 405, small electromagnetic block; 406, annular guide plate; 407, movable ring strip; 408, limiting ring strip; 409, annular magnetic strip; 5, pressurization mechanism; 501, vortex fan head; 502, converging frame; 503, connecting pipe; 504, arc filter plate; 6, adding frame head; 7, arched filter screen; 8, discharge valve head; 9, mounting notch; 10, pushing spring rod; 11, cleaning brush plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] Please refer to Figures 1-5, the present invention provides a technical solution: a membrane filtration device for the production of millet vinegar, including a processing frame 1, a working frame 2 is installed in the middle of the right side of the processing frame 1, and the processing frame 1 is in a cylindrical structure; A filtration mechanism 3, the filtration mechanism 3 includes a membrane filtration plate 301 and a movable mounting rod 303. The upper end and the middle and lower ends in the inner cavity of the processing frame 1 are both installed with membrane filtration plates 301, and movable mounting rods 303 are arranged at the upper ends of the membrane filtration plates 301; A transmission mechanism 4, the transmission mechanism 4 includes a rotating disk 403 and a mounting ring groove 404. Two rotating disks 403 are equidistantly installed in the inner cavity of the working frame 2, and mounting ring grooves 404 are formed in the outer circumferences of the rotating disks 403.

[0017] The filtration mechanism 3 further includes a movable scraper 302, a mounting top rod 304, a mounting spring 305, a movable notch 306 and a sealing sleeve 307. Movable scrapers 302 are arranged at the bottom ends of the movable mounting rods 303. Movable notches 306 are formed in the middle and on both sides of the top ends of the movable scrapers 302. Mounting top rods 304 are slidably installed in the inner cavities of the movable notches 306. The top ends of the mounting top rods 304 are connected to the bottom ends of the movable mounting rods 303. Mounting springs 305 are installed at the bottom ends of the mounting top rods 304, and the bottom ends of the mounting springs 305 are connected to the bottom ends of the inner cavities of the movable notches 306; The specific implementation method is: when the movable scraper 302 slides on the upper end of the membrane filtration plate 301, the filtration efficiency of the membrane filtration plate 301 is increased during filtration, and through the extrusion of the mounting spring 305, the adhesion between the movable scraper 302 and the upper end of the membrane filtration plate 301 is increased.

[0018] The mounting top rod 304 is in an inverted T-shaped structure. Mounting round holes are formed at the bottom ends of the mounting top rods 304. The mounting spring 305 is made of spring steel. A sealing sleeve 307 is installed around the mounting top rod 304 at the top end of the movable scraper 302. The top end of the sealing sleeve 307 is connected to the bottom end of the movable mounting rod 303. The movable scraper 302 and the sealing sleeve 307 are both made of rubber; The specific implementation method is: the elasticity and service life of the mounting spring 305 during use are increased by the spring steel material, and the mounting top rod 304 and the movable notch 306 are completely isolated from the inside of the processing frame 1 through the sealing sleeve 307, increasing the flexibility and stability of the movable end during use.

[0019] The transmission mechanism 4 further includes a single-phase motor 401, a rotating rod 402, a small electromagnetic block 405, an annular guide plate 406, a movable ring strip 407, a limiting ring strip 408 and an annular magnetic strip 409. At the bottom end of the inner cavity of the working frame 2, a single-phase motor 401 is installed. The output shaft at the top of the single-phase motor 401 is provided with a rotating rod 402. The top of the rotating rod 402 passes through the middle of the rotating disc 403. A number of small electromagnetic blocks 405 are equidistantly installed around the inner cavity of the installation ring groove 404. An annular guide plate 406 is installed on one side inside the installation ring groove 404. A control panel is installed at the bottom end of the front side of the working frame 2. The single-phase motor 401 and the small electromagnetic blocks 405 are electrically connected to the control panel. Around the inner cavity of the processing frame 1, movable ring strips 407 are installed at the upper ends of the membrane filter plates 301. Both ends of the movable mounting rod 303 are connected to the inner sides of both ends of the movable ring strip 407. Limiting ring strips 408 are installed at the relative positions of the movable ring strips 407 around the inner cavity of the processing frame 1. An annular magnetic strip 409 is installed around the outer circumference of the movable ring strip 407; The specific implementation method is as follows: When performing membrane filtration processing operations, start the small electromagnetic block 405 to generate magnetism, and make the annular guide plate 406 generate magnetism, and generate magnetic attraction with the annular magnetic strip 409. Then start the single-phase motor 401 to drive the rotating rod 402 to rotate. Drive the rotating disc 403 to rotate through the rotating rod 402. Drive the annular guide plate 406 to rotate through the rotation of the rotating disc 403 around the circumference. When the annular guide plate 406 rotates, drive the annular magnetic strip 409 and the movable ring strip 407 to rotate inside the limiting ring strip 408. When the movable ring strip 407 rotates, drive the movable mounting rod 303 to rotate. Drive the movable scraper 302 to slide on the upper end of the membrane filter plate 301 through the movable mounting rod 303. When performing filtration processing operations, by continuously processing the upper end of the filtration end, not only the efficiency during the filtration process is improved, but also the sealing performance inside the processing frame 1 during the pressurization process is increased. Avoid during the filtration operation, the upper end of the filtration end works for a long time, resulting in impurities accumulating at the top of the filtration end. And when performing filtration operations later, it will affect the filtration processing efficiency. Avoid blockage during use and inability to perform filtration, and increase the situation where the sealing performance inside the processing frame 1 is insufficient during the pressurization process, resulting in the filtration pressure not meeting the requirements and the filtration processing efficiency becoming low.

[0020] Annular notches are provided at the relative positions of the movable ring strips 407 around the inner cavity of the processing frame 1. A number of ball bearings are equidistantly installed around the outer circumference of the movable ring strip 407. Movable arc openings are provided on the right side of the processing frame 1 at the relative positions of the rotating discs 403. The left sides of the rotating discs 403 are all located inside the movable arc openings. Installation openings are provided in the middle of the rotating discs 403; The specific implementation method is as follows: When the movable ring strip 407 rotates, drive the surrounding ball bearings to rotate. Through the rotation of the surrounding ball bearings, the stability and flexibility of the rotation of the movable ring strip 407 are increased.

[0021] The device further includes a pressurizing mechanism 5, which includes a turbofan head 501, a converging frame 502, a connecting pipe 503 and an arc-shaped filter plate 504. A converging frame 502 is installed at the top end inside the working frame 2, and a turbofan head 501 is installed at the top end of the rotating rod 402. The turbofan head 501 is located inside the converging frame 502. Connecting holes are provided at the top end of the working frame 2 and the upper right end of the processing frame 1. A connecting pipe 503 is installed at the top end of the working frame 2 at the relative position of the connecting hole. The top end of the connecting pipe 503 is connected to the upper right end of the processing frame 1. The top end of the converging frame 502 is of a horn-shaped structure; The specific implementation is as follows: When the rotating rod 402 rotates, it drives the turbofan head 501 to rotate inside the converging frame 502 and generates an air flow inside the converging frame 502. The air flow is transported into the processing frame 1 through the connecting pipe 503, increasing the air pressure inside the processing frame 1. By increasing the air pressure, the efficiency of membrane filtration is improved, and it is avoided that during membrane filtration operation, the downward flow effect due to gravity is too low.

[0022] An adding frame head 6 is installed at the top end of the processing frame 1. An adding through groove is provided at the top end of the processing frame 1. An arched filter screen 7 is installed at the bottom end inside the processing frame 1. A discharge through opening is provided at the bottom end of the processing frame 1. A discharge valve head 8 is installed at the bottom end of the processing frame 1; The specific implementation is as follows: Liquid is added into the processing frame 1 through the adding frame head 6, and the filtered liquid is filtered through the discharge valve head 8 during discharge.

[0023] An installation slot 9 is provided at the relative position of the right side of the working frame 2 with respect to the rotating disk 403. Cleaning brush plates 11 are movably installed on one side of the inner cavity of the installation slot 9. The cleaning brush plates 11 are of an arc-shaped structure. A number of pushing spring rods 10 are installed on the right side of the cleaning brush plates 11, and the right ends of the pushing spring rods 10 are connected to the inner cavity of the installation slot 9; The specific implementation is as follows: The pushing spring rods 10 in a compressed state are used to increase the adhesion between the cleaning brush plates 11 and the outside of the rotating disk 403. When the rotating disk 403 rotates, the outside of the rotating disk 403 and the outer circumference of the annular magnetic strip 409 will come into contact and friction with the outside of the cleaning brush plates 11, increasing the stability of the annular magnetic strip 409 during use and avoiding the situation that the annular magnetic strip 409 is exposed to the outside for a long time and accumulates dirt, resulting in a decrease in magnetism in the later stage.

[0024] Working principle: When the present invention performs membrane filtration processing operations, a small electromagnetic block 405 is activated to generate magnetism, causing the annular guide plate 406 to generate magnetism and magnetically attract the annular magnetic strip 409. The single-phase motor 401 is activated to drive the rotating rod 402 to rotate. The rotating rod 402 drives the rotating disk 403 to rotate. The rotation of the surrounding rotating disk 403 drives the annular guide plate 406 to rotate. When the annular guide plate 406 rotates, it drives the annular magnetic strip 409 and the movable ring strip 407 to rotate inside the limiting ring strip 408. When the movable ring strip 407 rotates, it drives the movable mounting rod 303 to rotate. The movable mounting rod 303 drives the movable scraper 302 to slide on the upper end of the membrane filtration plate 301. During the filtration processing operation, by continuously processing the upper end of the filtration end, not only the efficiency during the filtration process is improved; When the rotating rod 402 rotates, it drives the vortex fan head 501 to rotate inside the converging frame 502 and generates an air flow inside the converging frame 502. The air flow is transported to the processing frame 1 through the connecting pipe 503, increasing the air pressure inside the processing frame 1. By increasing the air pressure, the efficiency during membrane filtration is improved, avoiding the problem of too low downward flow effect due to gravity during membrane filtration operations.

[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A membrane filtration device for millet vinegar production, comprising a processing frame (1), a working frame (2) being installed in the middle of the right side of the processing frame (1), characterized in that: A filtering mechanism (3), the filtering mechanism (3) comprising a membrane filtering plate (301) and a movable mounting rod (303), the membrane filtering plate (301) being mounted at both the middle upper end and the middle lower end of the inner cavity of the processing frame (1), and the upper end of the membrane filtering plate (301) being provided with a movable mounting rod (303); The transmission mechanism (4) comprises a rotating disk (403) and a mounting annular groove (404), the inner cavity of the working frame (2) is provided with two rotating disks (403) at equal distances, and the outer periphery of the rotating disk (403) is provided with a mounting annular groove (404).

2. A membrane filtration device for millet vinegar production according to claim 1, characterized in that: The filtering mechanism (3) further comprises a movable scraper (302), a mounting top rod (304), a mounting spring (305), a movable recess (306) and a sealing sleeve (307); the movable scraper (302) is arranged at the bottom end of the movable mounting rod (303); the movable recess (306) is provided at the middle part and both sides of the top end of the movable scraper (302); the inner cavity of the movable recess (306) is slidably mounted with a mounting top rod (304); the top end of the mounting top rod (304) is connected to the bottom end of the movable mounting rod (303); the bottom end of the mounting top rod (304) is mounted with a mounting spring (305); the bottom end of the mounting spring (305) is connected to the bottom end of the inner cavity of the movable recess (306).

3. A membrane filtration device for millet vinegar production according to claim 2, characterized in that: The mounting top rod (304) is in an inverted T-shaped structure. The bottom end of the mounting top rod (304) is provided with a mounting circular opening. The mounting spring (305) is made of spring steel. The top end of the movable scraper (302) is located around the mounting top rod (304). A sealing sleeve (307) is installed. The top end of the sealing sleeve (307) is connected to the bottom end of the movable mounting rod (303). The movable scraper (302) and the sealing sleeve (307) are both made of rubber.

4. A membrane filtration device for millet vinegar production according to claim 1, characterized in that: The transmission mechanism (4) further comprises a single-phase motor (401), a rotating rod (402), a small electromagnetic block (405), an annular guide plate (406), a movable ring strip (407), a limit ring strip (408) and an annular magnetic strip (409). The bottom end of the inner cavity of the working frame (2) is equipped with a single-phase motor (401). The output shaft at the top end of the single-phase motor (401) is equipped with a rotating rod (402). The top end of the rotating rod (402) passes through the middle of the rotating disk (403). A plurality of small electromagnetic blocks (405) are equidistantly installed around the inner cavity of the mounting ring groove (404). The inside of the mounting ring groove (404) is provided with a plurality of small electromagnetic blocks (405). An annular guide plate (406) is installed on one side, a control panel is installed on the bottom of the front side of the working frame (2), the single-phase motor (401) and the small electromagnetic block (405) are electrically connected to the control panel, the inner cavity of the processing frame (1) is located on the upper end of the membrane filter plate (301) and is equipped with movable ring strips (407) all around, the two ends of the movable mounting rod (303) are connected to the two ends of the inner side of the movable ring strip (407), and the inner cavity of the processing frame (1) is equipped with limit ring strips (408) at relative positions of the movable ring strip (407), and the outer periphery of the movable ring strip (407) is equipped with annular magnetic strips (409).

5. A membrane filtration device for millet vinegar production according to claim 4, characterized in that: Annular notches are provided around the inner cavity of the processing frame (1) at positions relative to the movable ring strip (407); a plurality of ball bearings are equidistantly mounted around the outer periphery of the movable ring strip (407); movable arc openings are provided on the right side of the processing frame (1) at positions relative to the rotating disk (403); the left side of the rotating disk (403) is located inside the movable arc openings; and a mounting opening is provided in the middle of the rotating disk (403).

6. A membrane filtration device for millet vinegar production according to claim 4, characterized in that: The device further comprises a supercharging mechanism (5), the supercharging mechanism (5) comprising a turbofan head (501), a gathering frame (502), a connecting pipe (503) and an arc-shaped filter plate (504); the gathering frame (502) is mounted on the top of the inner cavity of the working frame (2); the turbofan head (501) is mounted on the top of the rotating rod (402); the turbofan head (501) is located inside the gathering frame (502); the top of the working frame (2) and the upper right end of the processing frame (1) are both provided with connecting holes; the top of the working frame (2) is provided with a connecting pipe (503) at a position relative to the connecting hole; the top of the connecting pipe (503) is connected to the upper right end of the processing frame (1); the top of the gathering frame (502) is in a trumpet-shaped structure.

7. A membrane filtration device for millet vinegar production according to claim 1, characterized in that: The top of the processing frame (1) is provided with an adding frame head (6), the top of the processing frame (1) is provided with an adding slot, the bottom of the inner cavity of the processing frame (1) is provided with an arched filter screen (7), the bottom of the processing frame (1) is provided with a discharge port, and the bottom of the processing frame (1) is provided with a discharge valve head (8).

8. A membrane filtration device for millet vinegar production according to claim 1, characterized in that: A mounting notch (9) is provided on the right side of the working frame (2) at a position relative to the rotating disk (403); a cleaning brush plate (11) is movably mounted on one side of the inner cavity of the mounting notch (9); the cleaning brush plate (11) is in an arc-shaped structure; a plurality of push spring rods (10) are mounted on the right side of the cleaning brush plate (11); and the right end of the push spring rod (10) is connected to the inner cavity of the mounting notch (9).