Screening device for grain processing

Abstract

The screening device for grain processing comprises a box body and a flow guide pipe, the upper end of an inner cavity of the box body is fixedly connected with a guide plate and a flow distribution plate respectively, the outer side face of the box body is fixedly connected with an air pump, the air pump is communicated with the flow distribution plate through an air conveying pipe, and the middle of the side face of the inner cavity of the box body is fixedly connected with a screening plate and a recycling plate respectively. The flow guide pipe is fixedly connected to the outer side face of the box body, the lower end of the flow guide pipe is fixedly connected with the extension pipe, the extension pipe penetrates through the filter screen to be embedded into the purification box, the recovery box is fixedly connected to the lower end of the outer side face of the box body, and meanwhile the bottom of an inner cavity of the box body is movably connected with the collection box. Through cooperation of the air pump, the splitter plate, the screening plate, the recovery plate, the flow guide pipe and the purification box, the device can conduct multiple screening treatment on grains, the influence of dust and grain empty shells on the grain quality can be effectively reduced, and the screening efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grain processing screening, and particularly relates to a screening device for grain processing. BACKGROUND

[0002] Grain is the main source of human body heat, and the main grains in the world include rice, wheat, rye, sorghum, corn and millet. Grain processing refers to the business activities of converting raw grain into semi-finished grain or finished grain, or converting semi-finished grain into finished grain. With the improvement of people's requirements for food, the quality of grain is attracting more and more attention. During the processing of grain, a screening device is needed to screen the grain to screen out the debris and ensure the quality of the grain. However, the existing screening device for grain processing is mostly used by vibrating the screen mesh to make the debris fall through the holes of the screen mesh. However, some small-diameter grains may block the screen mesh, which may affect the screening efficiency of the next batch of grains if not cleaned. The screen mesh is usually fixedly connected with the vibrating device, which is difficult to clean. During the screening process, a large amount of dust is generated, which fills the inside of the processing box with dust, easily affecting the quality of the grain. In addition, it is difficult to screen out the empty shell grain mixed in the grain, which greatly reduces the screening efficiency and quality, and also greatly reduces the practicability. SUMMARY

[0003] To overcome the defects of the prior art, the present application provides a screening device for grain processing to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, a screening device for grain processing is provided, which comprises a box body and a flow guide pipe. The upper end of the inner cavity of the box body is fixedly connected with a guide plate and a shunt plate, respectively. The outer side of the box body is fixedly connected with an air pump. The air pump is connected with the shunt plate through a gas conveying pipe. The middle part of the side surface of the inner cavity of the box body is fixedly connected with a screening plate and a recovery plate, respectively. The lower surface of the suspended end of the screening plate is fixedly connected with a fixed block. The side surface of the fixed block is fixedly connected with a vibrator. The middle part of the inner cavity of the box body is symmetrically connected with a guide rod. The surface of the guide rod is slidingly connected with a cleaning plate. The inner cavity of the box body is fixedly connected with an air cylinder. The multi-stage telescopic rod of the air cylinder is fixedly connected with the cleaning plate. The cleaning plate is slidingly connected to the lower surface of the screening plate. The flow guide pipe is fixedly connected to the outer side of the box body. The lower end of the flow guide pipe is fixedly connected with an extension pipe. The extension pipe penetrates through a filter screen and is embedded into the inside of a purification box. A recovery box is fixedly connected to the lower end of the outer side of the box body. The bottom of the inner cavity of the box body is movably connected with a collection box.

[0005] Preferably, the upper end of the inner cavity of the box body is symmetrically connected with two groups of guide plates. The two groups of guide plates are both arranged in an inclined manner. The cross section formed by the combination of the two groups of guide plates has an eight-shaped structure. The guide plates are located above the shunt plate.

[0006] Preferably, the shunt plate is rectangular in structure, the cross section of the shunt plate is C-shaped structure, and the side of the shunt plate is fixedly connected with the auxiliary plate with an opening, and the auxiliary groove is formed in the auxiliary plate corresponding to the opening of the shunt plate, and the cross section of the auxiliary groove is isosceles trapezoidal structure.

[0007] Preferably, the screen plate and the recovery plate are both rectangular in structure, the free end of the screen plate is inclined downward, the free end of the recovery plate is inclined upward, and the cross section of the combination of the screen plate and the recovery plate is < shaped structure.

[0008] Preferably, the screen plate is uniformly provided with screen holes, the fixed block fixedly connected with the free end of the screen plate is isosceles triangular prism structure, and the free end of the recovery plate is attached to the lower surface of the fixed block.

[0009] Preferably, the two groups of guide rods fixedly connected in the box are both < shaped structure, the cross section of the guide rod is square structure, the cleaning plate slidingly connected with the guide rod is strip-shaped structure, and the cleaning brush fixedly connected with the upper surface of the cleaning plate is attached to the lower surface of the screen plate.

[0010] Preferably, the whole guide pipe is L-shaped structure, the lower end of the bending part of the guide pipe is prism platform structure, the extension pipe fixedly connected with the opening of the bending part of the guide pipe is square cylinder structure, the filter screen fixedly connected with the upper surface of the purification box is < shaped structure, and the size of the opening of the inner cavity of the filter screen is matched with the size of the outer side of the extension pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are that: through the cooperation of the air cylinder, the guide rod, the cleaning plate, the fixed block and the vibrator, the screen plate and the recovery plate can be assisted to improve the screening efficiency of the grain, and the difficulty of cleaning the screen plate is also reduced, the probability of the screen holes of the screen plate being blocked is reduced, and through the cooperation of the air pump, the shunt plate, the auxiliary plate, the guide pipe, the extension pipe, the filter screen and the purification box, the device can screen the dust and the empty grain mixed in the grain, thereby the screening efficiency of the device and the screening quality of the grain can be improved, the cleanliness of the working environment can be ensured, and the practicability of the device is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front view schematic diagram of the utility model embodiment.

[0013] Figure 2 It is a side view schematic diagram of the utility model embodiment.

[0014] Figure 3 It is a top view schematic diagram of the utility model embodiment.

[0015] Figure 4 It is aFigure 1 Enlarged view of A.

[0016] In the figure: 1, box; 2, collecting box; 3, recycling plate; 4, fixed block; 5, vibrator; 6, screening plate; 7, air pump; 8, shunt plate; 9, auxiliary plate; 10, guide plate; 11, flow guide pipe; 12, guide rod; 13, cleaning plate; 14, air cylinder; 15, recycling box; 16, purification tank; 17, filter screen; 18, extension pipe. DETAILED DESCRIPTION

[0017] Referring to Figures 1 to 4 The utility model provides a kind of screening device for grain processing, it include: box 1 and flow guide pipe 11, the upper end of the inner cavity of box 1 is respectively fixedly connected guide plate 10 and shunt plate 8, and the outer side of box 1 is fixedly connected air pump 7, air pump 7 is communicated shunt plate 8 by gas conveying pipe, and the middle part of the side of the inner cavity of box 1 is respectively fixedly connected screening plate 6 and recycling plate 3, and the lower surface of the suspended end of screening plate 6 is fixedly connected fixed block 4, fixed block 4 side is fixedly connected vibrator 5, while the middle part of the inner cavity of box 1 is symmetrically connected guide rod 12, guide rod 12 surface is slidably connected cleaning plate 13, and the inner cavity of box 1 is fixedly connected air cylinder 14, the multistage telescopic rod of air cylinder 14 is fixedly connected cleaning plate 13, cleaning plate 13 is slidably connected in the lower surface of screening plate 6, the outer side of box 1 is fixedly connected flow guide pipe 11, flow guide pipe 11 lower end is fixedly connected extension pipe 18, and extension pipe 18 is embedded in the inside of purification tank 16 by passing through filter screen 17, and recycling box 15 is fixedly connected in the lower end of the outer side of box 1, while the bottom of the inner cavity of box 1 is movably connected collecting box 2.

[0018] In the embodiment, the grain to be screened is put into the box 1 from the feeding port, the guide plates 10 arranged in the box 1 guide the grain to fall orderly, the switch of the air pump 7 is started, the air pump 7 injects the external airflow into the shunt plate 8 through the air conveying pipe, the airflow in the shunt plate 8 can enhance the impact force of the airflow through the cooperation of the auxiliary plate 9, and then the dust and empty shell grain in the falling grain can fall into the flow guide pipe 11 under the blowing of the airflow, and under the driving of the airflow, the dust and empty shell grain can directly impact the filtering liquid filled in the purification tank 16 through the extension pipe 18, so that the dust and empty shell grain can fall into the filtering liquid, and part of the dust flowing with the airflow outside the purification tank 16 can be intercepted and filtered by the filter screen 17, thereby ensuring the filtering effect of the device on the dust during screening, reducing the probability of the dust affecting the grain quality and the cleanliness of the working environment, and then the grain screened by the airflow preliminarily falls on the surface of the screening plate 6, the switch of the vibrator 5 is started, the vibrator 5 drives the suspended end of the screening plate 6 to vibrate through the fixed block 4, thereby assisting to improve the sliding speed of the grain on the surface of the screening plate 6 and the screening efficiency, reducing the probability of the screening holes of the screening plate 6 being blocked, the switch of the air cylinder 14 is started, the multi-stage telescopic rod of the air cylinder 14 drives the cleaning plate 13 to move periodically and linearly, and in the moving process of the cleaning plate 13, the cleaning brush of the cleaning plate 13 can perform secondary cleaning treatment on the screening holes of the screening plate 6, thereby further reducing the probability of the screening plate 6 being blocked, and then the qualified grain falls into the collection box 2 through the screening plate 6, and the broken grain falls on the surface of the recovery plate 3 through the screening plate 6, the broken grain slides along the inclined surface of the recovery plate 3 to the recovery box 15, thereby completing the screening treatment of the grain, and finally the box door at the lower end of the box 1 is opened, and the collection box 2 can be taken out.

[0019] As a preferred embodiment, the upper end of the inner cavity of the box 1 is symmetrically connected with two groups of guide plates 10, the two groups of guide plates 10 are both arranged obliquely, and the cross section formed by the combination of the two groups of guide plates 10 has an eight-shaped structure, and the guide plates 10 are located above the shunt plate 8.

[0020] In the embodiment, the guide plates 10 are arranged to make the grain fall in the box 1 in an orderly waterfall type, thereby assisting to improve the winnowing effect of the airflow blown by the shunt plate 8 on the grain and reducing the interference of the dust and empty shell grain mixed in the grain on the subsequent screening. Figure 1

[0021] As a preferred embodiment, the shunt plate 8 has a rectangular structure, the cross section of the shunt plate 8 has a C-shaped structure, one side of the shunt plate 8 is fixedly connected with the auxiliary plate 9 with an opening arranged on the side surface, the auxiliary groove is arranged in the auxiliary plate 9 corresponding to the position of the opening of the shunt plate 8, and the cross section of the auxiliary groove has an isosceles trapezoidal structure.

[0022] In the embodiment, the guide plates 10 are arranged to make the grain fall in the box 1 in an orderly waterfall type, thereby assisting to improve the winnowing effect of the airflow blown by the shunt plate 8 on the grain and reducing the interference of the dust and empty shell grain mixed in the grain on the subsequent screening. Figure 1 and​Figure 2 The structure of the auxiliary plate 9 can effectively enhance the impact force of the airflow blown by the shunt plate 8, thereby effectively enhancing the winnowing effect on the grain inside the screening device, and reducing the probability of dust and empty grain remaining in the box 1.

[0023] As a preferred embodiment, the screening plate 6 and the recovery plate 3 are both rectangular in structure, and the overhanging end of the screening plate 6 is inclined downward, while the overhanging end of the recovery plate 3 is inclined upward, and the cross section formed by the combination of the screening plate 6 and the recovery plate 3 is < shaped.

[0024] In this embodiment, the positions of the screening plate 6 and the recovery plate 3 are set such that the qualified grain can slide along the inclined surface of the screening plate 6 into the collection box 2 under the auxiliary action of gravity, while the unqualified grain can slide along the inclined surface of the recovery plate 3 into the recovery box 15 under the auxiliary action of gravity, thereby improving the screening efficiency of the device. Figure 1 Figure 3 As a preferred embodiment, the screening plate 6 is uniformly provided with screening holes on the surface, and the fixed block 4 fixedly connected to the overhanging end of the screening plate 6 is in the shape of an isosceles triangular prism, and the overhanging end of the recovery plate 3 is attached to the lower surface of the fixed block 4.

[0025] In this embodiment, the overhanging end of the recovery plate 3 is attached to the lower surface of the fixed block 4, and then during the vibration of the screening plate 6 by the vibrator 5 through the fixed block 4, the vibrating screening plate 6 can also drive the recovery plate 3 to vibrate through the fixed block 4, thereby assisting in enhancing the sliding efficiency of the grain on the surface of the screening plate 6 and the recovery plate 3, reducing the probability of the grain being trapped, and also assisting in reducing the probability of the screening plate 6 being blocked.

[0026] As a preferred embodiment, the two groups of guide rods 12 fixedly connected inside the box 1 are both in the shape of a <, and the cross section of the guide rod 12 is square in structure, and the cleaning plate 13 slidingly connected to the guide rod 12 is in the shape of a long strip, and the cleaning brush fixedly connected to the upper surface of the cleaning plate 13 is attached to the lower surface of the screening plate 6. Figure 1 Figure 4 In this embodiment, the guide rod 12 is provided, which can assist in enhancing the stability of the cleaning plate 13 when moving, and the cleaning brush of the cleaning plate 13 is attached to the lower surface of the screening plate 6, thereby effectively enhancing the cleaning effect of the cleaning brush on the screening plate 6, reducing the probability of the screening plate 6 being blocked, and also reducing the difficulty of cleaning inside the screening device.

[0027] As a preferred embodiment, the two groups of guide rods 12 fixedly connected inside the box 1 are both in the shape of a <, and the cross section of the guide rod 12 is square in structure, and the cleaning plate 13 slidingly connected to the guide rod 12 is in the shape of a long strip, and the cleaning brush fixedly connected to the upper surface of the cleaning plate 13 is attached to the lower surface of the screening plate 6.

[0028] In this embodiment, the guide rod 12 is provided, which can assist in enhancing the stability of the cleaning plate 13 when moving, and the cleaning brush of the cleaning plate 13 is attached to the lower surface of the screening plate 6, thereby effectively enhancing the cleaning effect of the cleaning brush on the screening plate 6, reducing the probability of the screening plate 6 being blocked, and also reducing the difficulty of cleaning inside the screening device. Figure 1 Figure 3 As a preferred embodiment, the two groups of guide rods 12 fixedly connected inside the box 1 are both in the shape of a <, and the cross section of the guide rod 12 is square in structure, and the cleaning plate 13 slidingly connected to the guide rod 12 is in the shape of a long strip, and the cleaning brush fixedly connected to the upper surface of the cleaning plate 13 is attached to the lower surface of the screening plate 6.

[0029] ​​​As a preferable implementation, the flow guide pipe 11 is in an L-shaped structure as a whole, the lower end opening of the bent part of the flow guide pipe 11 is in a prismatic structure, the extension pipe 18 fixedly connected to the opening of the bent part of the flow guide pipe 11 is in a square tube structure, the filter screen 17 fixedly connected to the upper surface of the purification tank 16 is in a back-shaped structure, and the size of the opening of the inner cavity of the filter screen 17 is adapted to the size of the outer side of the extension pipe 18.

[0030] In the embodiment, as Figure 1 、 Figure 2 and Figure 3 , the structure of the opening of the bent part of the flow guide pipe 11 can effectively limit the flow range of the airflow, improve the speed of the airflow, and then facilitate to improve the impact force of the airflow impacting the liquid surface of the filter liquid in the purification tank 16, improve the filtering effect of the purification tank 16 on the dust and empty grain carried in the airflow, and the setting of the filter screen 17 can further improve the filtering effect of the purification tank 16 on the exhaust airflow.

[0031] The screening device for grain processing of the utility model discloses through the cooperation of the air pump 7, the flow dividing plate 8, the screening plate 6, the recovery plate 3, the flow guide pipe 11 and the purification tank 16, the device can carry out multiple screening treatment on the grain, can effectively reduce the influence of dust and empty grain on the quality of the grain, improve the screening efficiency, and the recovery box 15 is fixedly connected to the outer side of the box body 1 through buckling, which is convenient for workers to uniformly process the grain scraps.

Claims

1. A screening device for grain processing, comprising: A box body (1) and a diversion pipe (11), characterized in that: at the upper end of the inner cavity of the box body (1), a guiding plate (10) and a diversion plate (8) are respectively fixedly connected; on the outer side surface of the box body (1), an air pump (7) is fixedly connected, and the air pump (7) is communicated with the diversion plate (8) through an air delivery pipe; in the middle of the side surface of the inner cavity of the box body (1), a screening plate (6) and a recovery plate (3) are respectively fixedly connected; on the lower surface of the suspended end of the screening plate (6), a fixing block (4) is fixedly connected, and on the side surface of the fixing block (4), a vibrator (5) is fixedly connected; at the same time, in the middle of the inner cavity of the box body (1), guide rods (12) are symmetrically connected, a cleaning plate (13) is slidably connected to the surface of the guide rods (12); in the inner cavity of the box body (1), a cylinder (14) is fixedly connected, and a multi-stage telescopic rod of the cylinder (14) is fixedly connected to the cleaning plate (13), and the cleaning plate (13) is slidably connected to the lower surface of the screening plate (6); the diversion pipe (11) is fixedly connected to the outer side surface of the box body (1), the lower end of the diversion pipe (11) is fixedly connected to an extension pipe (18), and the extension pipe (18) passes through a filter net (17) and is embedded inside a purification box (16); a recovery box (15) is fixedly connected to the lower end of the outer side surface of the box body (1); at the same time, a collection box (2) is movably connected to the bottom of the inner cavity of the box body (1).

2. A screening device for grain processing according to claim 1, characterized in that: At the upper end of the inner cavity of the box body (1), two groups of guiding plates (10) are symmetrically connected. The two groups of guiding plates (10) are both inclined, and the cross-section formed by the combination of the two groups of guiding plates (10) is in an inverted V-shaped structure. At the same time, the guiding plates (10) are located above the diversion plate (8).

3. A screening device for grain processing according to claim 1, characterized in that: The diversion plate (8) is in a rectangular structure, the cross-section of the diversion plate (8) is in a C-shaped structure, and on the side of the diversion plate (8) where an opening is provided, an auxiliary plate (9) is fixedly connected. Inside the auxiliary plate (9), an auxiliary groove is correspondingly provided at a position corresponding to the opening of the diversion plate (8). At the same time, the cross-section of the auxiliary groove is in an isosceles trapezoid structure.

4. A screening device for grain processing according to claim 1, characterized in that: Both the screening plate (6) and the recovery plate (3) are in rectangular structures. The suspended end of the screening plate (6) is inclined downward, and the suspended end of the recovery plate (3) is inclined upward. At the same time, the cross-section formed by the combination of the screening plate (6) and the recovery plate (3) is in a < - shaped structure.

5. A screening device for grain processing according to claim 1, characterized in that: Screening holes are evenly provided on the surface of the screening plate (6). The fixing block (4) fixedly connected to the suspended end of the screening plate (6) is in an isosceles triangular prism structure, and the lower surface of the suspended end of the recovery plate (3) is in contact with the lower surface of the fixing block (4).

6. A screening device for grain processing according to claim 1, characterized in that: The two groups of guide rods (12) fixedly connected inside the box body (1) are both in a C-shaped structure. The cross-section of the guide rods (12) is in a square structure. The cleaning plate (13) slidably connected to the guide rods (12) is in a long strip structure. The cleaning brush fixedly connected to the upper surface of the cleaning plate (13) is in contact with the lower surface of the screening plate (6).

7. A screening device for grain processing according to claim 1, characterized in that: The diversion pipe (11) is in an overall L-shaped structure. The lower end opening of the bent part of the diversion pipe (11) is in a frustum-shaped structure. The extension pipe (18) fixedly connected to the opening of the bent part of the diversion pipe (11) is in a square tube structure. At the same time, the filter net (17) fixedly connected to the upper surface of the purification box (16) is in a square frame structure, and the size of the opening inside the filter net (17) is adapted to the size of the outer side surface of the extension pipe (18).

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