Wheat screening device
By designing a wheat screening device that includes vibration screening, air selection and conveyor parts, the problems of low screening efficiency and large space in the prior art are solved, and efficient screening and low-cost production solutions are realized.
Patent Information
- Application Number
- CN202421149820.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The existing wheat screening device has low screening efficiency and cannot meet the production needs of users. It also occupies a large space, which increases the investment cost of users.
A wheat screening device including a vibration screening assembly, a wind screening assembly and a conveyor is designed. The vibration screening assembly extends the screening stroke through multiple staggered screening groups. The air-selecting assembly removes wheat peels and straws through wind sieves, and the conveyors are efficiently conveyed through a screw conveyor.
It improves screening efficiency and effect, reduces space consumption, reduces user input costs, and meets user production needs.
Smart Images
Figure CN222642565U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of wheat screening equipment, and specifically relates to a wheat screening device. Background Art
[0002] Before wheat is ground into flour, it needs to be screened, moistened, left to stand, and ground. The purpose of screening wheat is to filter out the dust, pebbles, bran, etc. of the wheat seeds to ensure the purity of the flour after grinding.
[0003] At present, the device used for screening wheat generally adopts a vibrating mesh screen, and the dust, stones, etc. of the wheat seeds fall through the mesh of the screen to achieve the purpose of screening; vibration can effectively help the wheat to turn over and improve the screening effect. The wheat to be screened on the drying net is laid thinner to improve the effect of screening wheat, but this will result in less wheat screened at one time, reduce the screening efficiency, and cannot meet the production needs of users; if the screen area is increased, it will undoubtedly increase the space occupied by the screening device, increase the requirements for the use space, and invisibly increase the user's investment cost.
[0004] In order to solve the above problems, it is urgent to design a screening device that occupies a small space and has high screening efficiency to meet the needs of users. Utility Model Content
[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a wheat screening device to solve the technical problem that the current screening devices have low screening efficiency and cannot meet the production needs of users.
[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a wheat screening device, the screening device comprises a vibration screening component, a wind selection component and a conveying member arranged between the vibration screening component and the wind selection component; the vibration screening component comprises a first box body, a feed inlet arranged at the top of the first box body, a screen group arranged in the box body and a discharge port arranged on the side wall of the first box body; the screen group comprises an inclined screen and a receiving plate arranged below the screen, the screen and the receiving plate are symmetrically arranged relative to the horizontal plane at the connection between the two, and the lower end of the receiving plate extends out of the discharge port on the end wall of the first box body; the screen group is provided with more than two groups, and is staggered;
[0007] The wind selection assembly includes a second box, an air distribution cover arranged on the inner wall of the second box, a bran collection box arranged on a side of the second box away from the air distribution cover and connected to the second box, and a wheat outlet arranged at the lower end of the end wall of the second box; the first box, the conveying member and the second box are arranged in parallel;
[0008] The conveyor receives the wheat after vibration screening discharged from the discharge port and conveys it upward to a position close to the upper end in the second box body, and the wheat is winnowed during free fall.
[0009] Preferably, a collecting plate is provided below the lowermost screen group in the first box.
[0010] Preferably, the collecting plate is arranged obliquely, and the discharge port is located at the lower end of the collecting plate.
[0011] Preferably, the conveying member is a screw conveyor, and the feed end of the conveyor is connected to the discharge port through a conveying pipe.
[0012] Preferably, a bent discharge pipe is provided at the discharge end of the conveyor, the discharge pipe is cantilevered into the second box body, and evenly arranged feeding holes are provided at the bottom of the bent portion of the discharge pipe in the second box body.
[0013] Preferably, the end of the discharge pipe is closed.
[0014] Preferably, the discharge pipe is arranged at an angle.
[0015] Preferably, a filter plate is further provided near the lower end of the second box body, and the wheat after air selection passes through the filter plate and is collected.
[0016] Preferably, a diversion slope is provided at the bottom of the second box body, and the lower end of the diversion slope is connected to the wheat outlet.
[0017] The beneficial effects of adopting the technical solution of the utility model are:
[0018] The vibrating screening component of the utility model expands the vibrating screening stroke within a limited space, thereby improving the screening effect and the screening efficiency; a conveying member and a wind selection member are arranged in parallel on one side of the vibrating screening component, and the wind selection member is convenient for screening out larger bran, straw, etc. of wheat seeds, thereby improving the screening quality; and the conveying member, the wind selection member and the vibrating screening member are arranged in parallel, the structure is arranged reasonably, and a small space is occupied, which is convenient for users to arrange and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is an overall schematic diagram of an embodiment of a wheat screening device;
[0020] Figure 2 It is a cross-sectional schematic diagram of a vibrating screening component of an embodiment of a wheat screening device as viewed from the left;
[0021] Figure 3 It is a schematic cross-sectional view from the right side of an air selection component of an embodiment of a wheat screening device.
[0022] in, Figure 1-3 In the figure, 1-feeding port, 2-first box body, 3-discharging port, 4-receiving plate, 5-screen, 6-collecting plate, 7-vibration driving member, 8-conveying pipe, 9-screw conveyor, 10-discharging pipe, 11-fan, 12-second box body, 13-wind hood, 14-wheat hull collecting box, 15-filter plate, 16-wheat outlet, 17-diversion slope. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and do not limit the scope of the present invention.
[0024] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] The specific embodiments are as follows:
[0027] Embodiment 1, as Figure 1-3 As shown, a wheat screening device includes a vibrating screening component, a wind selection component and a conveying component.
[0028] The vibration screening assembly includes a first box body 2, a feed inlet 1, a screen group, a discharge port, and a vibration drive 7. The feed inlet 1 is arranged at the top of the first box body 2, the screen group is arranged in the first box body 2 for screening the impurities with large specific gravity and small volume such as dust, pebbles, etc. of the wheat seeds, and the discharge port is arranged at a position near the lower end of the right side wall of the first box body 2 for releasing the wheat after the vibration screen. The vibration drive 7 is arranged on the left side of the first box body 2 for providing intermittent vibration force to the screen group. On the one hand, the vibration force can break some dust blocks, and on the other hand, it can accelerate the dust, pebbles, etc. to fall off the screen.
[0029] The number of screen groups can be set to more than two. The screen group includes a screen 5 and a receiving plate 4. The screen 5 is tilted, and the receiving plate 4 is connected to the lower end of the screen 5, and the screen 5 and the receiving plate 4 are symmetrically arranged relative to the horizontal plane at the connection between the two. The lower end of the receiving plate 4 extends from the discharge port 3 arranged on the end wall of the first box body 2, and a trumpet-shaped discharge hopper is arranged at the end. In this embodiment, the aperture on the screen 5 is smaller than that of wheat, which is convenient for screening out dust, pebbles, etc. from wheat seeds; the receiving plate 4 is a solid flat plate body, and the impurities screened from the screen 5 fall on the receiving plate 4, and because the receiving plate 4 is tilted, the impurities slide and are discharged from the discharge port 3, which is convenient for the continuous screening of wheat.
[0030] In this embodiment, four screen groups are provided, and the four screen groups are staggered up and down on the front and rear end walls of the first box body 2. This extends the screening stroke without increasing the occupied space too much, thereby improving the screening effect and efficiency.
[0031] The wind selection component includes a second box body 12, an air distribution hood 13, a bran collection box 14 and a wheat outlet 16. The left side wall of the second box body 12 is provided with an air distribution hood 13 with multiple air distribution holes, and the air distribution hood 13 is connected to the fan 11 arranged on the left side of the second box body 12. An opening is provided on the right side wall of the second box body 12, which is connected to the bran collection box 14 arranged on the right side of the second box body 12 through the opening, and an opening and closing port is provided at the lower end of the bran collection box 14 to facilitate the removal of light bran, straw and other impurities that have been screened out. A wheat outlet 16 is provided at the lower end of the front end wall of the second box body 12, and the wheat after wind selection in the second box body 12 flows out from the wheat outlet 16 to complete the wheat screening process.
[0032] In this embodiment, the first box body 2 and the second box body 12 are both narrow in the left and right sides and long in the front and back sides. The first box body 2, the conveying member and the second box body 12 are arranged side by side in the left and right sides, with a high degree of integration and a reasonable structural design, and will not occupy a large space. The discharge port on the first box body 2 is connected to the conveying pipe 8, and the conveying pipe 8 is connected to the feeding end of the conveying member. The conveying member conveys the wheat after vibration screening upward and conveys it to the upper part of the second box body 12, and falls freely from the upper part of the second box body 12. During the falling process, the fan 11 blows air for air selection, and blows out the light wheat husks, straws, etc. of the wheat seeds, and falls into the husk collection box 14.
[0033] In this embodiment, the conveying member is a screw conveyor 9 .
[0034] When the wheat screening device of this embodiment is in use, the wheat to be screened is added into the first box body 2 from the feed port 1, and the wheat falls on the screen 5. The impurities with high specific gravity such as dust and pebbles of the wheat seeds are screened through the holes of the screen 5, and the impurities screened flow down through the receiving plate 4 and are discharged from the discharge port 3. The vibration drive member 7 provides vibration force for the screen group to improve the screening efficiency and screening effect. The setting of multiple groups of screen groups, and the staggered setting up and down, extend the screening stroke without increasing too much occupied space, and improve the screening efficiency and screening effect. The wheat after vibration screening is transported to the upper part of the second box body 12 by the conveying member and falls freely. Under the wind force of the fan 11, the light impurities such as bran and straw in the wheat are separated, and the light impurities fall into the bran collection box 14, completing the further screening of the wheat, and improving the quality and taste of the final flour ground. The vibration screening component, the conveying member and the air selection component are arranged side by side on the left and right, with a high degree of integration and a reasonable structure, reducing the space occupied, reducing the investment of the user's factory size, and facilitating the user to install and use.
[0035] Furthermore, a collecting plate 6 is provided below the lowermost screen group in the first box body 2, and the wheat after vibration screening falls on the collecting plate 6 and is discharged through a discharge port.
[0036] Furthermore, the collecting plate 6 is tilted to facilitate the storage of wheat. The discharge port is arranged at a lower end of the collecting plate 6.
[0037] Furthermore, a bent discharge pipe 10 is provided at the discharge end of the screw conveyor 9. The discharge pipe 10 is cantilevered into the second box body 12 near the upper end. The bent portion of the discharge pipe 10 in the second box body 12 extends forward and backward in the second box body 12. A plurality of distribution holes are provided at the bottom of the bent portion. The distribution holes are dispersed on the discharge pipe 10 to facilitate the lateral dispersion and falling of the wheat, which is helpful for air selection.
[0038] Furthermore, the end of the discharge pipe 10 is closed to prevent the wheat from falling in piles from the port and affecting the air selection.
[0039] Furthermore, the discharge pipe 10 is tilted as a whole to facilitate the lateral flow of wheat in the discharge pipe.
[0040] Furthermore, a filter plate 15 is provided near the lower end of the second box body 12. The aperture of the filter plate 15 is larger than the wheat, so that the wheat can fall from the hole to the bottom of the second box body 12 and impurities with a larger volume that are not separated by air separation can be retained, thereby improving the screening effect.
[0041] Furthermore, a guide slope 17 is provided at the bottom of the second box body 12, and a lower end of the guide slope 17 is connected to the wheat outlet 16, so as to facilitate the screened wheat to flow to the wheat outlet 16 for discharge.
[0042] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.
Claims
1. A wheat screening device, characterized in that: The screening device comprises a vibration screening component, a wind selection component and a conveying member arranged between the vibration screening component and the wind selection component; the vibration screening component comprises a first box body, a feed port arranged at the top of the first box body, a screen group arranged in the box body and a discharge port arranged on the side wall of the first box body; the screen group comprises an inclined screen and a receiving plate arranged below the screen, the screen and the receiving plate are symmetrically arranged relative to the horizontal plane at the connection between the two, and the lower end of the receiving plate extends out of the discharge port on the end wall of the first box body; the screen group is provided with more than two groups, and is staggered; The wind selection assembly includes a second box, an air distribution cover arranged on the inner wall of the second box, a bran collection box arranged on a side of the second box away from the air distribution cover and connected to the second box, and a wheat outlet arranged at the lower end of the end wall of the second box; the first box, the conveying member and the second box are arranged in parallel; The conveyor receives the wheat after vibration screening discharged from the discharge port and conveys it upward to a position close to the upper end in the second box body, and the wheat is winnowed during free fall.
2. A wheat screening device according to claim 1, characterized in that: A collecting plate is arranged below the lowermost screen group in the first box.
3. A wheat screening device according to claim 2, characterized in that: The collecting plate is arranged obliquely, and the discharge port is located at a lower end of the collecting plate.
4. A wheat screening device according to claim 1, characterized in that: The conveying member is a screw conveyor, and the feed end of the conveyor is connected to the discharge port through a conveying pipe.
5. A wheat screening device according to claim 4, characterized in that: A bent discharge pipe is arranged at the discharge end of the conveyor, and the discharge pipe is cantilevered into the second box body. The bottom of the bent portion of the discharge pipe in the second box body is provided with evenly arranged distribution holes.
6. A wheat screening device according to claim 5, characterized in that: The end of the discharge pipe is closed.
7. A wheat screening device according to claim 6, characterized in that: The discharge pipe is arranged obliquely.
8. A wheat screening device according to claim 1, characterized in that: A filter plate is also provided near the lower end of the second box body, and the wheat after air selection passes through the filter plate and is collected.
9. A wheat screening device according to claim 8, characterized in that: A diversion slope is arranged at the bottom of the second box body, and a lower end of the diversion slope is connected to the wheat outlet.