Cleaning and screening device for flour processing

By designing a combination of washing, screening, and drying components, the problem of shriveled wheat and bran being pressed to the bottom in wheat washing and screening devices was solved, achieving effective separation, efficient washing, screening, and drying of wheat.

CN223996277UActive Publication Date: 2026-03-17TENGZHOU BEIDACANG FLOUR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-29
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing wheat washing and screening devices tend to trap shriveled wheat and bran at the bottom when too much is poured at once, resulting in unsatisfactory washing and screening effects.

Method used

A device comprising a washing component, a screening component, and a drying component was designed. The washing motor drives the main rod and horizontal paddle to stir, and the wheat is separated in water. The separation of plump wheat from shriveled wheat and bran is achieved by using baffles and adjusting paddles. The wheat is then sent to the screening component for further screening by an extraction pump and a conveyor frame, and the wheat is dried by the drying component.

Benefits of technology

It effectively separates plump wheat from shriveled wheat and bran, improving the washing and screening effect, preventing shriveled wheat and bran from being pressed to the bottom, and improving the efficiency of washing, screening and drying.

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Abstract

The cleaning and screening device for flour processing comprises a cleaning assembly, the cleaning assembly comprises a cleaning pool, a feeding opening is formed in one end of the cleaning pool, a baffle is arranged in the end, away from the feeding opening, of the cleaning pool, a cleaning motor is arranged above the baffle, and the cleaning motor is coaxially connected with a main rod; the main rod penetrates through the baffle, the end, away from the cleaning motor, of the main rod is rotationally connected with the inner bottom wall of the cleaning pool, and the end, close to the inner bottom wall of the cleaning pool, of the main rod is coaxially connected with a horizontal paddle. A conveying frame is arranged above the cleaning pool, and a draw-off pump is communicated between the cleaning assembly and the feeding end of the conveying frame; the liquid is driven to rotate through the arranged adjusting paddle, so that full wheat is fully separated from wizened wheat and bran, then the wheat at the bottom of the liquid is separated from the wheat floating on the surface of the liquid through the baffle, and the wizened wheat and bran on the surface of the liquid are prevented from being extracted into the screening assembly.
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Description

Technical Field

[0001] This utility model relates to the field of wheat processing technology, and more specifically, to a cleaning and screening device for flour processing. Background Technology

[0002] Wheat is a common crop, and wheat flour can be used to make various foods. The processing of wheat involves multiple steps, among which washing and screening are relatively important. This step can clean the impurities on the surface of the wheat, and a wheat washing and screening device is required at this time.

[0003] Existing wheat washing and screening devices simply pour wheat into water before flour processing and use the density difference between plump and shriveled wheat for simple washing and screening. However, if too much is poured in at once, shriveled wheat and bran may be pressed to the bottom, resulting in unsatisfactory washing and screening effects, making it inconvenient for users.

[0004] For example, the "Wheat Washing and Screening Device" disclosed in Chinese Invention Patent (Application No.: CN202320370030.6) includes a housing, a washing chamber, and a screening box. The washing chamber is fixed to one side of the housing, a stirring frame is fixed to the bottom of the gearbox, a vibrator is installed on one side of the screening box, a large-particle wheat outlet is fixed to the top of one side of the screening box, and a small-particle wheat outlet is fixed to the bottom of one side of the screening box. This invention dries wheat by incorporating a drying structure. After washing, the wheat surface retains a significant amount of moisture, which can affect the screening effect. At this point, an air pump is activated to draw air through the inlet pipe, and then the air pump delivers the gas through the outlet pipe into the drying channel. An electric heating wire is energized to heat the gas inside the drying channel. The gas is then blown from inside the drying channel onto the wheat surface. The heated gas, combined with the high-speed airflow, rapidly evaporates the moisture on the wheat surface, making screening more convenient and achieving wheat drying.

[0005] The wheat washing and screening device proposed in the aforementioned patent simply uses a vibrator in the bin wall to drive the screening box to vibrate, but it does not provide an effective solution to the problems mentioned above. Therefore, we have made improvements and proposed a washing and screening device for flour processing. Utility Model Content

[0006] The purpose of this invention is to address the current problem that if too much is poured at once, the shriveled wheat and bran may be pressed to the bottom, resulting in unsatisfactory washing and screening effects.

[0007] In order to achieve the above-mentioned objectives, this invention provides a washing and screening device for flour processing to improve the above-mentioned problems.

[0008] The application is as follows:

[0009] The device includes a cleaning assembly, which comprises a cleaning tank with a feeding port at one end. A baffle is located at the end of the cleaning tank away from the feeding port, and a cleaning motor is mounted above the baffle. A main rod is coaxially connected to the cleaning motor, passing through the baffle. The end of the main rod away from the cleaning motor is rotatably connected to the bottom wall of the cleaning tank, and a horizontal paddle is coaxially connected to the end of the main rod near the bottom wall of the cleaning tank. A conveyor frame is located above the cleaning tank, and a pump connects the feeding end of the cleaning assembly and the conveyor frame. A screening assembly is located below the discharge end of the conveyor frame, and a drying assembly is installed below the screening assembly. The cleaning assembly is used to hold liquid for cleaning and screening wheat for flour processing. The pump and the conveyor frame work together to transfer the cleaned and screened wheat into the screening assembly, where it is screened again. The drying assembly is used to dry the screened wheat.

[0010] As a preferred technical solution of this application, the main rod has a plurality of adjusting blades spirally distributed above the horizontal blade, and the plurality of adjusting blades are all located below the baffle.

[0011] As a preferred technical solution of this application, the top of the baffle is provided with a plurality of filter holes, the diameter of the filter holes is smaller than the grain size of wheat, the area of ​​the baffle is smaller than the inner cavity area of ​​the washing pool, and the height of the baffle is lower than the liquid surface.

[0012] As a preferred technical solution of this application, the screening component includes a screening chamber, in which an inclined sieve plate is provided. The height of the end of the sieve plate near the conveyor frame is higher than the height of the end away from the conveyor frame. A vibration motor is fixedly connected to the top of the sieve plate. The sieve plate has a plurality of sieve holes, the diameter of which is larger than the diameter of wheat grains.

[0013] As a preferred technical solution of this application, the drying assembly includes a "U"-shaped drying chamber disposed at the bottom of the screening chamber. Several electric heaters are installed on a pair of opposite side walls of the "U"-shaped drying chamber. A fixing frame is fixedly connected between the pair of opposite side walls of the "U"-shaped drying chamber. The bottom height of the fixing frame is higher than the bottom height of the "U"-shaped drying chamber. Several ventilation components are fixedly connected to the top of the "U"-shaped drying chamber.

[0014] As a preferred technical solution of this application, the ventilation component includes a holding chamber, an installation frame is provided in the inner cavity of the holding chamber, a fan is provided in the installation frame, a drying motor is coaxially connected to the bottom of the fan, and a number of ventilation holes are opened on the top of the holding chamber.

[0015] As a preferred technical solution of this application, the top of the storage bin is provided with an arc-shaped structure, and the diameter of the ventilation holes is smaller than the diameter of wheat grains.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In the scheme of this application: the liquid is rotated by the set adjustment paddle, so that the plump wheat and the shriveled wheat and bran are fully separated. Then, the wheat at the bottom of the liquid and the wheat floating on the surface of the liquid are separated by the baffle, so as to prevent the shriveled wheat and bran on the surface of the liquid from being drawn into the screening component. Attached Figure Description

[0018] Figure 1 This application provides an overall structural schematic diagram;

[0019] Figure 2 The overall structural cross-sectional view provided for this application;

[0020] Figure 3 The structural diagram of the cleaning component provided in this application;

[0021] Figure 4 Cross-sectional view of the screening component provided in this application;

[0022] Figure 5 This is a cross-sectional view of the drying component provided in this application.

[0023] The image shows:

[0024] 10. Cleaning assembly; 11. Cleaning tank; 12. Feed port; 13. Baffle; 14. Cleaning motor; 15. Main rod; 16. Horizontal paddle; 17. Adjusting paddle; 18. Filter holes;

[0025] 20. Extraction pump;

[0026] 30. Conveyor rack;

[0027] 40. Screening assembly; 41. Screening chamber; 42. Screen plate; 43. Vibrating motor; 44. Screen holes;

[0028] 50. Drying assembly; 51. "U"-shaped drying chamber; 52. Electric heater; 53. Storage chamber; 54. Fan; 55. Drying motor; 56. Ventilation hole. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0030] As in the background art, if too much is poured at once, the shriveled wheat and bran may be pressed to the bottom, resulting in unsatisfactory washing and screening effects, and thus making it inconvenient for users.

[0031] To solve this technical problem, this utility model provides a washing and screening device for flour processing, which is effective in washing and screening wheat.

[0032] For details, please refer to Figures 1 to 3 The flour processing cleaning and screening device specifically includes a cleaning component 10, which includes a cleaning tank 11. One end of the cleaning tank 11 has a feeding port 12. A baffle 13 is located inside the end of the cleaning tank 11 away from the feeding port 12. A cleaning motor 14 is located above the baffle 13. A main rod 15 is coaxially connected to the cleaning motor 14, passing through the baffle 13. The end of the main rod 15 away from the cleaning motor 14 is rotatably connected to the bottom wall of the cleaning tank 11. A horizontal paddle 16 is coaxially connected to the end of the main rod 15 near the bottom wall of the cleaning tank 11. A cleaning device is located above the cleaning tank 11. There is a conveyor frame 30, and a pump 20 is connected between the washing component 10 and the feed end of the conveyor frame 30. A screening component 40 is provided below the discharge end of the conveyor frame 30, and a drying component 50 is installed below the screening component 40. The washing component 10 is used to hold liquid and wash and screen wheat for flour processing. The pump 20 and the conveyor frame 30 work together to transfer the washed and screened wheat into the screening component 40. The screening component 40 screens the washed wheat again. The drying component 50 is used to dry the wheat after it has been screened again.

[0033] The flour processing cleaning and screening device provided by this utility model achieves full separation of plump wheat and shriveled wheat and bran through the cooperation of baffle 13 and adjusting paddle 17, and separates wheat at the bottom of the liquid from wheat floating on the surface of the liquid, preventing shriveled wheat and bran on the surface of the liquid from being drawn into the screening component 40.

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0035] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Example

[0037] Please refer to Figure 1 A flour processing cleaning and screening device includes a cleaning assembly 10, which includes a cleaning tank 11. One end of the cleaning tank 11 has a feeding port 12. A baffle 13 is located inside the end of the cleaning tank 11 away from the feeding port 12. A cleaning motor 14 is located above the baffle 13. A main rod 15 is coaxially connected to the cleaning motor 14, passing through the baffle 13. The end of the main rod 15 away from the cleaning motor 14 is rotatably connected to the bottom wall of the cleaning tank 11. A horizontal paddle 16 is coaxially connected to the end of the main rod 15 near the bottom wall of the cleaning tank 11. A conveyor frame 30 is located above the cleaning tank 11. A pump 20 is connected between the inlet end of the washing assembly 10 and the conveyor frame 30. A screening assembly 40 is provided below the outlet end of the conveyor frame 30, and a drying assembly 50 is installed below the screening assembly 40. The washing assembly 10 is used to hold liquid and wash and screen wheat for flour processing. The pump 20 and the conveyor frame 30 work together to transfer the washed and screened wheat into the screening assembly 40. The screening assembly 40 screens the washed wheat again. The drying assembly 50 is used to dry the wheat after it has been screened again. Water is preferred as the liquid in the washing tank 11.

[0038] Please refer to Figure 2 A flour processing washing and screening device is used as follows: First, the wheat for flour processing is washed and screened by the washing component 10. The pump 20 and the conveyor 30 work together to transfer the washed and screened wheat into the screening component 40. The screening component 40 screens the washed wheat again. The drying component 50 dries the wheat after it has been screened again.

[0039] Furthermore, such as Figure 3 As shown, the main rod 15 has several adjusting paddles 17 spirally distributed above the horizontal paddle 16, and all the adjusting paddles 17 are located below the baffle 13. Wheat is added to the water in the washing tank 11 through the feeding port 12, and then the power is turned on. The washing motor 14 drives the main rod 15, which is coaxially connected to it, to rotate. The main rod 15 drives the horizontal paddle 16, which is coaxially connected to it, to rotate, stirring the plump wheat at the bottom of the washing tank 11, while the shriveled wheat and bran float on the surface of the water under the action of buoyancy.

[0040] Furthermore, such as Figure 3 As shown, the top of the baffle 13 has several filter holes 18, the diameter of which is smaller than the particle size of wheat. The area of ​​the baffle 13 is smaller than the inner cavity area of ​​the washing tank 11, and the height of the baffle 13 is lower than the liquid surface. During the process of the horizontal paddle 16 and the regulating paddle 17 stirring the water in the washing tank 11, the baffle 13 blocks the plump wheat to prevent it from mixing with the shriveled wheat on the water surface. The shriveled wheat floats to the water surface through the gap between the baffle 13 and the inner cavity of the washing tank 11, thereby achieving effective separation of plump wheat from shriveled wheat and bran.

[0041] Furthermore, such as Figure 4 As shown, the screening component 40 includes a screening chamber 41, in which an inclined sieve plate 42 is provided. The height of the end of the sieve plate 42 near the conveyor frame 30 is higher than the height of the end away from the conveyor frame 30. A vibration motor 43 is fixedly connected to the top of the sieve plate 42. Several sieve holes 44 are opened on the sieve plate 42, and the diameter of the sieve holes 44 is larger than the diameter of wheat grains. When the washing component 10 washes the wheat, small stones with higher density and larger diameter than the sieve holes 44 will be deposited at the bottom of the washing tank 11 along with the plump wheat, and then drawn into the conveyor frame 30 by the extraction pump 20. After the plump wheat and small stones fall into the screening chamber 41, the vibration motor 43 drives the sieve plate 42 to vibrate, so that the wheat falls into the drying component 50 below through the sieve holes 44, while the small stones with a diameter larger than the sieve holes 44 are intercepted by the sieve plate 42.

[0042] Furthermore, such as Figure 5 As shown, the drying assembly 50 includes a U-shaped drying chamber 51 located at the bottom of the screening chamber 41. Several electric heaters 52 are installed on a pair of opposite sidewalls of the U-shaped drying chamber 51. A fixing frame is fixedly connected between the opposite sidewalls of the U-shaped drying chamber 51, with the bottom of the fixing frame higher than the bottom of the U-shaped drying chamber 51. Several ventilation components are fixedly connected to the top of the U-shaped drying chamber 51. The ventilation components include a holding chamber 53, with an installation frame inside the holding chamber 53. A fan 54 is installed inside the installation frame, and a drying motor is coaxially connected to the bottom of the fan 54. The machine 55 has several ventilation holes 56 on the top of the holding chamber 53. The top of the holding chamber 53 has an arc-shaped structure, and the diameter of the ventilation holes 56 is smaller than the diameter of the wheat grains. After the wheat falls into the "U"-shaped drying chamber 51, the electric heater 52 heats the air inside the "U"-shaped drying chamber 51, and the drying motor 55 drives the fan 54 to rotate. This accelerates the drying of the wheat and prevents wheat and small stones from clogging the sieve holes 44, thus improving the screening efficiency. The arc-shaped structure on the top of the holding chamber 53 prevents wheat from accumulating on the top of the holding chamber 53 and clogging the ventilation holes 56, which would otherwise affect the drying efficiency.

[0043] The usage process of the flour processing cleaning and screening device provided by this utility model is as follows:

[0044] First, the wheat for flour processing is washed and screened using the washing assembly 10. Specifically, wheat is added to the water in the washing tank 11 through the feeding port 12. Then, the power is turned on, and the washing motor 14 drives the main rod 15, which is coaxially connected to it, to rotate. The main rod 15 drives the horizontal paddle 16, which is coaxially connected to it, to rotate, stirring the plump wheat at the bottom of the washing tank 11. The shriveled wheat and bran float on the surface of the water due to buoyancy. During the stirring of the water in the washing tank 11 by the horizontal paddle 16 and the regulating paddle 17, the baffle 13 blocks the plump wheat to prevent it from mixing with the shriveled wheat on the surface. The shriveled wheat floats to the surface through the gap between the baffle 13 and the inner cavity of the washing tank 11, thus achieving effective separation of plump wheat from shriveled wheat and bran. The extraction pump 20 and the conveyor frame 30 work together to transfer the washed and screened wheat to the screening assembly 40, where the washed wheat is screened again. In the washing assembly 10, when the wheat is being washed, small stones with higher density and a particle size larger than the sieve hole 44 will settle at the bottom of the washing tank 11 along with the plump wheat. These stones will then be drawn into the conveyor frame 30 by the extraction pump 20. After the plump wheat and small stones fall into the screening chamber 41, the vibrating motor 43 drives the sieve plate 42 to vibrate, causing the wheat to fall through the sieve hole 44 into the drying assembly 50 below. Small stones with a particle size larger than the sieve hole 44 are retained by the sieve plate 42. The drying assembly 50 is used to dry the wheat after it has been screened again. Specifically, after the wheat falls into the "U"-shaped drying chamber 51, the electric heater 52 heats the air inside the "U"-shaped drying chamber 51, and the drying motor 55 drives the fan 54 to rotate. This accelerates the drying of the wheat and prevents the wheat and small stones from clogging the sieve hole 44, thus improving the screening efficiency. The arc-shaped structure at the top of the holding chamber 53 prevents the wheat from accumulating on the top of the holding chamber 53 and clogging the ventilation hole 56. This results in a decrease in drying efficiency.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A cleaning and sizing device for flour processing, characterized by, Including a cleaning assembly (10), The cleaning assembly (10) comprises a cleaning tank (11), one end of the cleaning tank (11) is provided with a feeding port (12), the end of the cleaning tank (11) away from the feeding port (12) is provided with a baffle (13), the baffle (13) is provided with a cleaning motor (14) above, the cleaning motor (14) is coaxially connected with a main rod (15), the main rod (15) penetrates through the baffle (13), one end of the main rod (15) away from the cleaning motor (14) is rotatably connected with the inner bottom wall of the cleaning tank (11), one end of the main rod (15) close to the inner bottom wall of the cleaning tank (11) is coaxially connected with a horizontal paddle (16). The cleaning tank (11) is provided with a conveying frame (30) above, the cleaning assembly (10) and the conveying frame (30) are communicated with an extraction pump (20) between the feeding end, the discharging end of the conveying frame (30) is provided with a screening assembly (40) below, the screening assembly (40) is installed with a drying assembly (50) below. The cleaning assembly (10) is used for containing liquid, and the wheat for flour processing is cleaned and screened, the extraction pump (20) and the conveying frame (30) are matched with each other, and the cleaned and screened wheat is taken to the screening assembly (40), the cleaned wheat is screened again through the screening assembly (40), and the drying assembly (50) is used for drying the screened wheat again.

2. The cleaning and sieving device for flour processing according to claim 1, characterized in that, The main rod (15) is spirally distributed with a plurality of adjusting paddles (17) above the horizontal paddle (16), and the plurality of adjusting paddles (17) are all located below the baffle (13).

3. The cleaning and sieving device for flour processing according to claim 1, characterized in that, The baffle (13) is provided with a plurality of filter holes (18) on the top, the filter hole (18) has a smaller diameter than the particle size of the wheat, the area of the baffle (13) is smaller than the inner cavity area of the cleaning tank (11), and the height of the baffle (13) is lower than the liquid level.

4. The cleaning and sieving apparatus for flour processing according to claim 1, wherein, The screening assembly (40) comprises a screening bin (41), the screening bin (41) is provided with an inclined sieve plate (42) inside, the height of one end of the sieve plate (42) close to the conveying frame (30) is higher than the height of the other end away from the conveying frame (30), the top of the sieve plate (42) is fixedly connected with a vibration motor (43), a plurality of sieve holes (44) are formed in the sieve plate (42), and the sieve hole (44) has a larger diameter than the particle size of the wheat.

5. The cleaning and sizing device for flour processing according to claim 4, characterized in that, The drying assembly (50) comprises a "U"-shaped drying bin (51) arranged at the bottom of the screening bin (41), a plurality of electric heaters (52) are installed on the pair of side walls away from each other of the "U"-shaped drying bin (51), a fixing frame is fixedly connected between the pair of side walls away from each other of the "U"-shaped drying bin (51), the bottom height of the fixing frame is higher than the bottom height of the "U"-shaped drying bin (51), and a plurality of ventilation assemblies are fixedly connected to the top of the "U"-shaped drying bin (51).

6. The cleaning and sizing device for flour processing according to claim 5, characterized in that, The ventilation assembly comprises a containing bin (53), the inner cavity of the containing bin (53) is provided with a mounting frame, the mounting frame is provided with a fan (54) inside, the bottom of the fan (54) is coaxially connected with a drying motor (55), and a plurality of ventilation holes (56) are formed in the top of the containing bin (53).

7. The cleaning and sizing device for flour processing according to claim 6, characterized in that, The top of the containing bin (53) is provided with an arc structure, and the vent hole (56) has a smaller diameter than the diameter of the wheat grains.

Citation Information

Patent Citations

  • Wheat cleaning and screening device

    CN219292229U