Rice winnowing device

Abstract

The utility model relates to the technical field of rice screening, in particular to a rice winnowing device, and aims to solve the technical problems that winnowing equipment in the prior art is low in winnowing frequency, so that part of impurities are wrapped by rice to fall off, and the impurity rate is high, the rice winnowing device comprises a discharging pipe, and a plurality of discharging devices are evenly distributed on the side wall of the discharging pipe. The discharging devices can enable rice in the discharging pipes to form a plane and be evenly conveyed downwards at a constant speed, air holes are formed in the two opposite side walls of the discharging pipes between the adjacent discharging devices, the air holes in one side wall of each discharging pipe are communicated with an air pipe, the air pipes are connected with a draught fan, and the air outlet direction of the air pipes is perpendicular to the plane of the rice. Rice enters the discharging device and is shaped into a thin plane by the discharging device, air perpendicularly and directly irradiates the plane to easily remove impurities, then the rice enters the discharging device, and the impurities are removed in a reciprocating mode.

Description

Technical Field

[0001] The utility model relates to the technical field of rice screening, and specifically relates to a rice air separation device. Background Art

[0002] The rice winnowing device is an innovative device specifically designed to screen high-quality rice during rice processing. It is designed to efficiently and accurately separate rice grains of varying quality to meet the demands of high-quality rice production. The device primarily consists of a feeding system, winnowing system, sorting system, collection system, and control system, all working together to form a complete winnowing process.

[0003] The existing air separation equipment has the problem of insufficient air separation times, which causes some impurities to be carried away by the rice and fall down, resulting in a high impurity content. The utility model solves the above problem. Utility Model Content

[0004] The utility model provides a rice air separation device to solve the technical problem that the existing air separation equipment has a small number of air separation times, which causes some impurities to be carried away by rice and fall, resulting in a high impurity rate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rice air selection device, comprising: a feeding pipe, a plurality of feeding devices are distributed on the side walls of the feeding pipe, the feeding devices can form a plane and uniformly transport the rice in the feeding pipe downward, and air holes are opened on the opposite side walls of the feeding pipe between adjacent feeding devices, the air holes on one side wall of the feeding pipe are connected to the air duct, the air duct is connected to the fan, and the air outlet direction of the air duct is perpendicular to the rice plane.

[0006] Preferably, the unloading device includes a semicircular outer shell, which is connected to and communicated with the side wall of one side of the unloading pipe. The side wall at the axis of the semicircular outer shell is rotatably connected to a rotating shaft, and the rotating shaft is connected to the unloading fan blades. The maximum rotation range of the unloading fan blades is tangent to the inner wall of the unloading pipe opposite to the semicircular outer shell, and the two side surfaces of the unloading fan blades are in contact with the other two inner walls of the unloading pipe.

[0007] Preferably, the lower end of the feed pipe is connected to a silo, and the upper part of the silo is connected to a lifting mechanism. The lifting mechanism can lift the rice in the silo to the upper part of another feed pipe. The size of this feed pipe and the wind power of the fan are different from those of the upper and lower feed pipes.

[0008] Preferably, the lifting mechanism includes a lifting cylinder, which is connected to the upper part of the silo. The bottom wall of the silo is rotatably connected to a conveying shaft. The conveying shaft is located in the lifting cylinder and is concentrically arranged with the lifting cylinder. A spiral blade is connected to the conveying shaft. The upper end of the lifting cylinder is connected to the upper end of another discharge pipe through a downward-inclined inclined cylinder.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] During winnowing, the rice enters the feeding device and is shaped into a thin plane. The wind blows vertically onto the plane to easily remove the impurities. The rice then enters the next feeding device, and the process repeats to remove impurities.

[0011] The rice in the silo is transported into another discharge pipe through the lifting mechanism. By adjusting the size of this discharge pipe and the wind force, impurities of different particle sizes are further separated by air. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 It is a schematic structural cross-sectional view of the present utility model.

[0014] In the figure: a feeding pipe 1; a feeding device 2; a semicircular housing 21; a rotating shaft 22; a feeding fan blade 23; an air hole 3; an air duct 4; a silo 5; a lifting mechanism 6; a lifting cylinder 61; a conveying shaft 62; a spiral blade 63; and an inclined cylinder 64. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] The rotational connection described in this device refers to the process of baking the bearing on the shaft, providing a spring retaining ring groove on the shaft or the shaft hole, and clamping the elastic retaining ring in the retaining ring groove to achieve axial fixation of the bearing and realize rotation; the articulation refers to a connection method that is achieved by performing activities on connecting parts such as hinges, pins and short shafts.

[0017] The present invention will be described in detail below with reference to the accompanying drawings. Example

[0018] The following is combined with Figure 1-2 The present embodiment describes a rice air separation device, comprising: a feeding pipe 1, a plurality of feeding devices 2 are evenly distributed on the side walls of the feeding pipe 1, and the feeding devices 2 can form a plane and uniformly transport the rice in the feeding pipe 1 downward. Air holes 3 are opened on the opposite side walls of the feeding pipe 1 between adjacent feeding devices 2. The air holes 3 on one side wall of the feeding pipe 1 are connected to an air duct 4, which is connected to a fan. The air outlet direction of the air duct 4 is perpendicular to the plane of the rice.

[0019] During winnowing, the rice enters the feeding device 2 through the upper end of the feeding pipe 1, and is shaped into a thin plane by the feeding device 2 and transported downward at a uniform speed. The fan blows air into the air duct 4, and the air discharged from the air duct 4 is vertically and directly directed onto the plane to easily remove the impurities. The rice then enters the next feeding device 2, and this process is repeated to remove impurities.

[0020] The discharge device 2 includes a semicircular shell 21, which is connected to and communicates with the side wall of one side of the discharge pipe 1. The side wall of the semicircular shell 21 is rotatably connected to a rotating shaft 22 at the axis center. The rotating shaft 22 is connected to the discharge blade 23. The maximum rotation range of the discharge blade 23 is tangent to the inner wall of the discharge pipe 1 opposite to the semicircular shell 21, and the two side surfaces of the discharge blade 23 are in contact with the inner walls of the other two sides of the discharge pipe 1.

[0021] The rice enters the semicircular shell 21 and is blocked by the discharge fan blades 23. The power of the rotating shaft 22 is turned on, and the rotating shaft 22 drives the discharge fan blades 23 to rotate. The discharge fan blades 23 drive the rice to move downward. Under the action of gravity, the rice is discharged through the gap between the discharge fan blades 23 and the discharge pipe 1. The rice falls to form a thin plane, and the impurity removal effect is very good.

[0022] The lower end of the feeding pipe 1 is connected to the silo 5, and the upper part of the silo 5 is connected to the lifting mechanism 6. The lifting mechanism 6 can lift the rice in the silo 5 to the upper part of another feeding pipe 1. The size and wind speed of this feeding pipe 1 are different from those of the upper feeding pipe 1.

[0023] The rice discharged from the discharge pipe 1 enters the silo 5, and the lifting mechanism 6 lifts the rice in the silo 5 to another discharge pipe 1. Since the size and wind speed of this discharge pipe 1 are different from those of the previous discharge pipe 1, impurities of different particle sizes are further separated by air.

[0024] The lifting mechanism 6 includes a lifting cylinder 61, which is connected to the upper part of the silo 5. The bottom wall of the silo 5 is rotatably connected to a conveying shaft 62. The conveying shaft 62 is located inside the lifting cylinder 61 and is concentrically arranged with the lifting cylinder 61. The conveying shaft 62 is connected to a spiral blade 63. The upper end of the lifting cylinder 61 is connected to the upper end of another discharge pipe 1 through a downwardly inclined inclined cylinder 64.

[0025] During lifting, the conveying shaft 62 is turned on to drive the spiral blade 63 to rotate. The spiral blade 63 lifts the rice in the silo 5 to the top of the lifting cylinder 61, and the rice slides from the inclined cylinder 64 to the upper part of the other discharge pipe 1, completing the lifting.

[0026] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0027] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0028] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rice air separation device, characterized in that: include: A feeding pipe (1) is provided with a plurality of feeding devices (2) on the side walls of the feeding pipe (1). The feeding devices (2) can form a plane and uniformly transport the rice in the feeding pipe (1) downward. Wind holes (3) are provided on the opposite side walls of the feeding pipe (1) between adjacent feeding devices (2). The wind holes (3) on one side wall of the feeding pipe (1) are connected to an air duct (4), and the air duct (4) is connected to a fan. The air outlet direction of the air duct (4) is perpendicular to the plane of the rice.

2. The rice air separation device according to claim 1, characterized in that: The discharge device (2) includes a semicircular outer shell (21), which is connected to and communicated with a side wall of one side of the discharge pipe (1). The side wall at the axis of the semicircular outer shell (21) is rotatably connected to a rotating shaft (22), and the rotating shaft (22) is connected to a discharge fan blade (23). The maximum rotation range of the discharge fan blade (23) is tangent to the inner wall of the discharge pipe (1) opposite to the semicircular outer shell (21), and the two side surfaces of the discharge fan blade (23) are in contact with the inner walls of the other two sides of the discharge pipe (1).

3. The rice air separation device according to claim 1, characterized in that: The lower end of the feed pipe (1) is connected to a silo (5), and the upper part of the silo (5) is connected to a lifting mechanism (6). The lifting mechanism (6) can lift the rice in the silo (5) to the upper part of another feed pipe (1). The size and wind speed of the fan of this feed pipe (1) are different from those of the upper and lower feed pipes (1).

4. The rice air separation device according to claim 3, characterized in that: The lifting mechanism (6) includes a lifting cylinder (61), the lifting cylinder (61) is connected to the upper part of the silo (5), and the bottom wall of the silo (5) is rotatably connected to a conveying shaft (62). The conveying shaft (62) is located in the lifting cylinder (61) and is concentrically arranged with the lifting cylinder (61). A spiral blade (63) is connected to the conveying shaft (62). The upper end of the lifting cylinder (61) is connected to the upper end of another discharge pipe (1) through a downwardly inclined inclined cylinder (64).

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