A starch production impurity separation washing device
By combining a rotating filter cylinder with water flow rinsing, the problem of easy clogging of screens in starch production is solved, achieving efficient impurity separation and simplified cleaning, thus improving production efficiency and stability.
Patent Information
- Application Number
- CN202521546650.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-14
- Estimated Expiration
- 2035-07-23
AI Technical Summary
In traditional starch production, screens are prone to clogging, resulting in low filtration efficiency and increased labor costs. Furthermore, the cleaning effect of brushing the screens is poor, affecting the continuity of production.
The system employs a combination of a rotating filter cylinder, water flow rinsing, and brush plate cleaning. The filter cylinder is driven by a motor to rotate, using centrifugal force to accelerate impurity separation. Water is sprayed through nozzles to create a reverse rinsing force, which, in conjunction with the brush plate scraping the screen holes, allows for brush plate wear compensation through threaded contact rod adjustment.
It improves the efficiency of starch impurity separation, reduces the risk of screen clogging, simplifies the cleaning process, reduces downtime and labor costs, and enhances production stability.
Smart Images

Figure CN224485205U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of starch washing technology, specifically to a starch production washing device that separates impurities. Background Technology
[0002] Starch is an important raw material in the food, chemical, and pharmaceutical industries. Washing and impurity separation are key processes in its production, directly affecting the purity and quality of starch. Starch raw materials contain a variety of impurities. If these impurities are not completely separated, it will lead to low purity and poor color of the finished starch product, and may even affect subsequent processing.
[0003] Traditional starch production typically uses fixed screens for impurity separation. During the separation process, impurities tend to accumulate at the screen openings, requiring frequent screen cleaning to prevent clogging and reduced filtration efficiency, resulting in low production efficiency and increased labor costs. In some impurity separation devices, brushes are used to scrape and clean the impurities clogging the screen openings. However, these brushes wear down during operation, leading to poor cleaning results and even requiring frequent shutdowns for brush replacement, which disrupts the continuity of production. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a water washing device for starch production with impurity separation, which solves the problems of easy clogging of the screen holes and inconvenience in cleaning in traditional starch impurity separation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a starch production washing device with impurity separation, comprising a filter screen cylinder rotatably disposed within a housing, annular grooves on both sides of the inner cavity of the housing, sliders slidably connected to the upper and lower parts of the inner cavity of the annular grooves, two sliders at the same horizontal height having their opposite sides fixedly connected to the two sides of the filter screen cylinder via connecting rods, an opening on one side of the housing, and a rotating cylinder rotatably connected to the opening via a rotating component, one side of the rotating cylinder being fixedly connected to one side of the filter screen cylinder, a through hole on one side of the filter screen cylinder communicating with the rotating cylinder, and a first connecting cylinder rotatably connected to the through hole via a rotating component, a second connecting cylinder fixedly connected to one side of the top of the first connecting cylinder, a telescopic rod placed inside the second connecting cylinder, a brush plate fixedly connected to the top of the telescopic rod, a through groove for cooperating with the telescopic rod on one side of the top of the first connecting cylinder, and a threaded abutment rod for cooperating with the telescopic rod threadedly connected to the inside of the first connecting cylinder via an internal threaded groove.
[0006] Preferably, a sliding cylinder is fixedly connected to the bottom of the first connecting cylinder and located outside the box body via a connecting rod. A limit rod is slidably connected inside the sliding cylinder. A limit groove for cooperating with the limit rod is provided on one side of the box body and below the rotating cylinder. A pull plate is fixedly connected to one end of the limit rod. A spring is sleeved on the outer periphery of the limit rod and between the pull plate and the sliding cylinder. The two ends of the spring are fixedly connected to the opposite sides of the pull plate and the sliding cylinder, respectively.
[0007] Preferably, a feed pipe is fixedly connected to the other side of the housing via a connector, and one end of the feed pipe passes through the housing and the filter cylinder in sequence and extends into the inner cavity of the filter cylinder.
[0008] Preferably, the other side of the filter cylinder is connected to a feed pipe via a rotating component. One end of the feed pipe passes through the housing and extends to the outside of the housing. The bottom of the feed pipe is fixedly connected to the other side of the housing via a connector.
[0009] Preferably, a drive motor is fixedly connected to the upper part of one side of the housing via a connector, and a rotating rod is fixedly connected to the output end of the drive motor via a coupling. One end of the rotating rod is rotatably connected to one side of the housing via a rotating component. A first pulley is fixedly sleeved on the outer periphery of the rotating rod, and a second pulley is fixedly sleeved on the outer periphery of the rotating cylinder. The first pulley and the second pulley are connected by a belt drive.
[0010] Preferably, inclined plates are fixedly connected to both sides of the inner cavity of the box and below the filter screen cylinder, and a discharge port is opened at the bottom of the box.
[0011] Preferably, the surface of the housing is hinged with a mesh door.
[0012] This invention provides a water washing device for starch production with impurity separation. It has the following beneficial effects:
[0013] (1) This utility model drives the filter cylinder to rotate via a drive motor, thereby achieving dynamic filtration of starch slurry. Centrifugal force can accelerate the separation of impurities from starch. The nozzle sprays water onto the surface of the filter cylinder, which washes the starch slurry while generating a reverse flushing force. Combined with the rotating filter cylinder, it can remove impurities from the filter cylinder's sieve holes, reducing the risk of filter cylinder blockage. At the same time, the brush plate is in close contact with the inner wall of the filter cylinder, continuously scraping and cleaning the sieve holes as the filter rotates, further preventing the filter cylinder's sieve holes from becoming blocked. The length of the telescopic rod can be adjusted via a threaded contact rod to compensate for the wear of the brush bristles during operation, thereby improving the stability of impurity separation in starch production.
[0014] (2) This utility model uses the combination of rotating filter cylinder and water flow to trap impurities in starch slurry inside the filter cylinder. The starch slurry falls into the bottom of the box through the sieve holes and is discharged through the inclined plate and the discharge port, which improves the efficiency of starch impurity separation to a certain extent. At the same time, when cleaning impurities in the filter cylinder, the limit rod can be released by pulling the plate, and the brush plate can be rotated to gather the impurities, which facilitates the subsequent cleaning of impurities, shortens the downtime, and is easy to operate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the internal structure of the housing, filter screen cylinder, and rotating cylinder of this utility model.
[0018] Figure 4 This is a schematic diagram of the structure of the first connecting cylinder, the second connecting cylinder, the telescopic rod, and the threaded abutment rod of this utility model.
[0019] Figure 5 This utility model Figure 3 A magnified view of a section at point A in the middle;
[0020] In the diagram, 1. Box body; 2. Filter screen cylinder; 3. Annular slide groove; 4. Slider; 5. Rotating cylinder; 6. First connecting cylinder; 7. Second connecting cylinder; 8. Telescopic rod; 9. Brush plate; 10. Threaded contact rod; 11. Slide cylinder; 12. Limiting rod; 13. Limiting groove; 14. Pull plate; 15. Spring; 16. Feed pipe; 17. Water guide pipe; 18. Nozzle; 19. Water supply pipe; 20. Drive motor; 21. Rotating rod; 22. First pulley; 23. Second pulley; 24. Inclined plate; 25. Discharge port; 26. Screen door. Detailed Implementation
[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0022] Please see Figure 1-5This utility model provides a technical solution: a starch production washing device with impurity separation, comprising a filter cylinder 2 rotatably disposed within a housing 1, a mesh door 26 hinged to the surface of the housing 1, annular grooves 3 on both sides of the inner cavity of the housing 1, sliders 4 slidably connected to the upper and lower parts of the inner cavity of the annular grooves 3, two sliders 4 at the same horizontal height having their opposite sides fixedly connected to the two sides of the filter cylinder 2 via connecting rods, an opening on one side of the housing 1, and a rotating cylinder 5 rotatably connected to the opening via a rotating component. One side of the filter cylinder 5 is fixedly connected to one side of the filter cylinder 2. One side of the filter cylinder 2 has a through hole that communicates with the rotating cylinder 5. A first connecting cylinder 6 is rotatably connected to the through hole through a rotating component. A second connecting cylinder 7 is fixedly connected to one side of the top of the first connecting cylinder 6. A telescopic rod 8 is placed inside the second connecting cylinder 7. A brush plate 9 is fixedly connected to the top of the telescopic rod 8. A through groove that cooperates with the telescopic rod 8 is opened on one side of the top of the first connecting cylinder 6. A threaded abutment rod 10 that cooperates with the telescopic rod 8 is threadedly connected to the inside of the first connecting cylinder 6 through an internal threaded groove.
[0023] Furthermore, to facilitate the fixing of the brush plate 9, a slide cylinder 11 is fixedly connected to the bottom of the first connecting cylinder 6 and outside the housing 1 via a connecting rod. A limit rod 12 is slidably connected inside the slide cylinder 11. A limit groove 13 is provided on one side of the housing 1 and below the rotating cylinder 5 to cooperate with the limit rod 12. A pull plate 14 is fixedly connected to one end of the limit rod 12. A spring 15 is sleeved on the outer periphery of the limit rod 12 and between the pull plate 14 and the slide cylinder 11. The two ends of the spring 15 are fixedly connected to the opposite sides of the pull plate 14 and the slide cylinder 11, respectively.
[0024] In order to feed starch slurry into the filter cylinder 2, the other side of the filter cylinder 2 is connected to the feed pipe 16 through a rotating part. One end of the feed pipe 16 passes through the box body 1 and extends to the outside of the box body 1. The bottom of the feed pipe 16 is fixedly connected to the other side of the box body 1 through a connector.
[0025] Furthermore, in order to wash the starch with water while also clearing the sieve holes of the filter cylinder 2, a water guide pipe 17 is fixedly connected to the top of the inner cavity of the box 1 via a connecting block. Several nozzles 18 are equidistantly connected to the bottom of the water guide pipe 17, and a water supply pipe 19 is connected to the top of the water guide pipe 17. One end of the water supply pipe 19 passes through the box 1 and extends to the top of the box 1, and the water supply pipe 19 is connected to an external water source.
[0026] Furthermore, in order to achieve dynamic filtration of starch slurry, a drive motor 20 is fixedly connected to the upper part of one side of the box 1 via a connector. The drive motor 20 is powered by an external power source. The output end of the drive motor 20 is fixedly connected to a rotating rod 21 via a coupling. One end of the rotating rod 21 is rotatably connected to one side of the box 1 via a rotating component. A first pulley 22 is fixedly sleeved on the outer periphery of the rotating rod 21, and a second pulley 23 is fixedly sleeved on the outer periphery of the rotating cylinder 5. The first pulley 22 and the second pulley 23 are connected by belt drive.
[0027] To facilitate the collection of filtered starch liquid, inclined plates 24 are fixedly connected to both sides of the inner cavity of the box 1 and below the filter screen cylinder 2, and a discharge port 25 is opened at the bottom of the box 1.
[0028] During operation, starch slurry flows into filter cylinder 2 through feed pipe 16. At this time, limit rod 12 is engaged in limit groove 13, brush plate 9 is fixed inside filter cylinder 2, drive motor 20 is started, drive rotating rod 21 to rotate, rotating rod 21 drives second pulley 23, rotating cylinder 5 and filter cylinder 2 to start rotating through first pulley 22. At the same time, water supply pipe 19 supplies water to water pipe 17, so that nozzle 18 sprays water onto the surface of filter cylinder 2. Starch slurry turns over inside filter cylinder 2, impurities are trapped inside filter cylinder 2, starch liquid falls into the bottom of box 1 through the sieve holes of filter cylinder 2, and is discharged from outlet 25 through inclined plate 24.
[0029] During the separation of starch and impurities, impurities can clog the sieve holes of the filter cylinder 2. The nozzle 18 sprays water onto the filter cylinder 2, washing the starch slurry while creating a reverse scouring force. Combined with the rotating filter cylinder 2, this can remove impurities from the sieve holes of the filter cylinder 2 to a certain extent, reducing the risk of clogging. At the same time, the brush plate 9 is in close contact with the inner wall of the filter cylinder 2, continuously scraping and cleaning the sieve holes as the filter cylinder 2 rotates, preventing clogging and reducing filtration efficiency. During the scraping process, the brush plate 9 will wear down, resulting in a poorer cleaning effect. At this time, the threaded abutment rod 10 can be rotated. The threaded abutment rod 10 squeezes and drives the telescopic rod 8 to move, so that the brush plate 9 re-adheres to the inner wall of the filter cylinder 2.
[0030] After the starch impurity separation is completed, turn off the drive motor 20, so that the screen door 26 of the filter cylinder 2 faces downward. Then, the operator pulls the pull plate 14 to disengage the limit rod 12 from the limit groove 13, release the brush plate 9 from the fixation, and rotate the brush plate 9 to gather the impurities at the bottom of the inner cavity of the filter cylinder 2 for easy cleaning later.
Claims
1. A starch production washing device with impurity separation, comprising a filter cylinder (2) rotatably disposed within a housing (1), characterized in that: Both sides of the inner cavity of the box (1) are provided with annular grooves (3). The upper and lower parts of the inner cavity of the annular grooves (3) are slidably connected with sliders (4). The sliders (4) are fixedly connected to the filter cylinder (2) through connecting rods. One side of the box (1) is provided with an opening, and a rotating cylinder (5) is rotatably connected to the opening through a rotating component. One side of the rotating cylinder (5) is fixedly connected to one side of the filter cylinder (2). One side of the filter cylinder (2) is provided with a through hole that communicates with the rotating cylinder (5), and the through hole contains... A first connecting cylinder (6) is rotatably connected via a rotating component. A second connecting cylinder (7) is fixedly connected to one side of the top of the first connecting cylinder (6). A telescopic rod (8) is placed inside the second connecting cylinder (7). A brush plate (9) is fixedly connected to the top of the telescopic rod (8). A through groove is provided on one side of the top of the first connecting cylinder (6) to cooperate with the telescopic rod (8). A threaded abutment rod (10) to cooperate with the telescopic rod (8) is threadedly connected inside the first connecting cylinder (6) through an internal threaded groove.
2. The washing device for starch production with impurity separation according to claim 1, characterized in that: A sliding cylinder (11) is fixedly connected to the bottom of the first connecting cylinder (6) and outside the box body (1) via a connecting rod. A limiting rod (12) is slidably connected inside the sliding cylinder (11). A limiting groove (13) for cooperating with the limiting rod (12) is provided on one side of the box body (1) and below the rotating cylinder (5). A pull plate (14) is fixedly connected to one end of the limiting rod (12). A spring (15) is sleeved on the outer periphery of the limiting rod (12) between the pull plate (14) and the sliding cylinder (11). The two ends of the spring (15) are fixedly connected to the opposite side of the pull plate (14) and the sliding cylinder (11), respectively.
3. The starch production washing device with impurity separation according to claim 1, characterized in that: The other side of the filter cylinder (2) is connected to the feed pipe (16) through a rotating part. One end of the feed pipe (16) passes through the box body (1) and extends to the outside of the box body (1). The bottom of the feed pipe (16) is fixedly connected to the other side of the box body (1) through a connector.
4. A starch production washing device with impurity separation according to claim 3, characterized in that: The top of the inner cavity of the box (1) is fixedly connected to a water guide pipe (17) by a connecting block. Several nozzles (18) are equidistantly connected to the bottom of the water guide pipe (17). A water supply pipe (19) is connected to the top of the water guide pipe (17). One end of the water supply pipe (19) passes through the box (1) and extends to the top of the box (1).
5. A starch production washing device with impurity separation according to claim 4, characterized in that: A drive motor (20) is fixedly connected to the upper part of one side of the housing (1) via a connector. The output end of the drive motor (20) is fixedly connected to a rotating rod (21) via a coupling. One end of the rotating rod (21) is rotatably connected to one side of the housing (1) via a rotating component. A first pulley (22) is fixedly sleeved on the outer periphery of the rotating rod (21). A second pulley (23) is fixedly sleeved on the outer periphery of the rotating cylinder (5). The first pulley (22) and the second pulley (23) are connected by belt drive.
6. A water washing device for starch production with impurity separation according to claim 1, characterized in that: Inclined plates (24) are fixedly connected to both sides of the inner cavity of the box (1) and below the filter cylinder (2), and a discharge port (25) is opened at the bottom of the box (1).
7. A starch production washing device with impurity separation according to claim 1, characterized in that: The surface of the box (1) is hinged with a mesh door (26).