谷糠分离装置

Abstract

This invention provides a rice bran separation device, comprising: a separation mechanism, wherein the separation mechanism is provided with a screening channel, the screening channel including a feeding channel and an upper air channel, an air inlet being provided at the intersection of the feeding channel and the upper air channel, the feeding channel being at least partially downward, the upper air channel being at least partially upward, and a bran outlet being provided on the upper air channel. The feeding channel has a feeding inlet, and a mixture of grain and rice bran is fed to the upper air channel through the feeding channel. The upper air channel can blow the rice bran into the upper air channel and send it out through the bran outlet. The upper air channel also has at least one supplementary air inlet between the air inlet and the bran outlet, the air direction of the supplementary air inlet being different from the air direction blown in at the air inlet, and there is an overlapping area. Compared with the prior art, this invention achieves the first separation of rice bran under the action of wind by utilizing the screening channel, and at the same time, by setting a supplementary air inlet between the feeding inlet and the bran outlet, the air from the supplementary air inlet is used for the second separation of rice bran, thereby improving the rice bran separation effect.

Description

Technical Field

[0001] This invention relates to a rice bran separation device, belonging to the field of grain processing equipment. Background Technology

[0002] Grains have a husk on their surface. In the process of processing grains into rice, the husk must first be removed. The removed husk forms rice bran, which then needs to be separated from the rice, commonly known as rice bran separation.

[0003] like Figure 1 The traditional processing method shown requires first grinding the rice in a rice huller to separate the chaff from the grain surface. The chaff then enters a wind separator from the rice huller via an airlock. The grain is discharged from the lower discharge port, while the chaff is discharged from the suction duct, thus separating the grain and chaff. However, existing wind separators only have one air screening process. The separated chaff still contains grain, averaging five kilograms of grain per ton of chaff, resulting in grain waste. Further screening would be too costly and inefficient. Summary of the Invention

[0004] This invention provides a rice bran separation device that can improve rice bran separation efficiency and reduce the grain content in rice bran.

[0005] This invention provides a rice bran separator, comprising:

[0006] The separation mechanism includes a screening channel comprising a feeding channel and an upwind channel. An air inlet is located at the intersection of the feeding channel and the upwind channel. The feeding channel is at least partially downward, and the upwind channel is at least partially upward. A chaff outlet is located on the upwind channel. The feeding channel has a feeding inlet. A mixture of grains and chaff is fed to the upwind channel via the feeding channel. The upwind channel can blow the chaff into the upwind channel and discharge it through the chaff outlet. The upwind channel also has at least one supplementary air inlet between the air inlet and the chaff outlet. The air direction of the supplementary air inlet is different from the air direction blown in at the air inlet, and there is an overlapping area.

[0007] Furthermore, the screening channel is U-shaped, with the air inlet located at the bottom of the U-shape and the feed inlet and bran outlet located at the top of the U-shape.

[0008] Furthermore, the air supply vent is located on the outer side of the U-shape.

[0009] Furthermore, the separation mechanism is equipped with an air regulating plate at the air inlet. The air regulating plate is rotatably disposed in the screening channel, and the rotation of the air regulating plate can realize the air force adjustment of the air supply port and the air inlet.

[0010] Furthermore, the separation mechanism also includes a grain storage box, which is located between the air inlet and the bran outlet. The grain storage box is set on one side of the screening channel and is connected to the screening channel.

[0011] Furthermore, the rice husk separating device also includes:

[0012] A suction tube, which is connected to the bran outlet.

[0013] Furthermore, the grain storage box also includes a box body and a lid. The box body is provided with a cleaning port, and the lid is located at the cleaning port and is movably connected to the box body.

[0014] Furthermore, the cover is hinged to the box and / or the cover is detachably connected to the box.

[0015] Furthermore, the rice husk separating device also includes:

[0016] A rice huller, wherein the bottom of the rice huller is connected to the feed inlet.

[0017] Furthermore, the rice husk separating device also includes:

[0018] An airlock is provided at the bottom of the rice huller, which is connected to the feed inlet.

[0019] Compared with the prior art, this invention achieves the first separation of rice bran by using a screening channel under the action of wind. At the same time, by setting up an air supply port between the feed inlet and the bran outlet, the rice bran is separated a second time by using the air from the air supply port, thereby improving the rice bran separation effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a traditional rice husk separator.

[0021] Figure 2 This is a front view of an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of the separation mechanism according to an embodiment of the present invention.

[0023] 1. Separation mechanism; 11. Screening channel; 12. Feed inlet; 13. Bran outlet; 14. Air inlet; 15. Make-up air inlet; 16. Air regulating plate; 161. Control handle; 17. Grain storage box; 171. Cover; 2. Air suction tube; 3. Rice huller; 4. Air shut-off device. Detailed Implementation

[0024] 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] This invention discloses a rice bran separation device, such as... Figure 1 , Figure 2 As shown, it includes:

[0026] The separation mechanism 11 includes a screening channel 11, which includes a feeding channel and an upwind channel. An air inlet 14 is provided at the intersection of the feeding channel and the upwind channel. The feeding channel is at least partially downward and the upwind channel is at least partially upward. A chaff outlet 13 is provided on the upwind channel. The feeding channel has a feeding inlet 12. The mixture of grain and chaff is sent to the upwind channel through the feeding channel. The upwind channel can blow the chaff into the upwind channel and send it out through the chaff outlet 13. The upwind channel also has at least one supplementary air inlet 15 between the air inlet 14 and the chaff outlet 13. The air direction of the supplementary air inlet 15 is different from the air direction blown in at the air inlet 14, and there is an intersection area.

[0027] The screening channel 11 is a curved channel structure. The air inlet 14 also serves as a grain discharge outlet. After the grain and bran mixture enters the feeding channel through the feed inlet 12, it moves to the vicinity of the air inlet 14 under the action of gravity and centrifugal force. The air at the air inlet 14 performs wind screening on the grain and bran mixture. Due to its large weight and difficulty in being blown away, most of the grain will fall out from the air inlet 14, achieving grain discharge. The bran and a small amount of grain will change direction along the screening channel 11 under the action of wind force, enter the upper air channel, and move to the bran outlet 13. During the movement, the air from the supplementary air inlet 15 performs secondary wind screening on the bran and the grain that has not yet been separated from the bran, separating the bran and the remaining grain. The bran outlet 13 is located above the bran after the secondary wind screening. The bran can be sent out from the bran outlet 13, while the remaining grain can be retained in the screening channel 11 and then discharged from the air inlet 14 under the action of gravity.

[0028] In this embodiment of the invention, under the action of wind, the sieve channel 11 is used to achieve the first separation of rice bran. At the same time, by setting the air inlet 15 between the feed inlet 12 and the bran outlet 13 in the upper air channel, the air inlet 15 is used to perform the second separation of rice bran, thereby improving the rice bran separation effect.

[0029] Optional, such as Figure 2 As shown, the screening channel 11 is U-shaped, the air inlet 14 is located at the bottom of the U-shape, and the feed inlet 12 and the bran outlet 13 are both located at the top of the U-shape.

[0030] Among them, such as Figure 2As shown, the screening channel 11 is U-shaped, with the top of the U facing upwards and the bottom facing downwards. After the grain and bran mixture enters through the feed inlet 12, it moves under gravity to the vicinity of the air inlet 14 at the bottom of the U-shape. The air at the air inlet 14 performs wind screening on the grain and bran mixture. Due to its large weight and difficulty in being blown away, most of the grain will fall out through the air inlet 14, achieving grain discharge. The bran and a small amount of grain will change direction along the screening channel 11 under the action of wind and move to the bran outlet 13. During the movement, the air from the supplementary air inlet 15 performs secondary wind screening on the bran and a small amount of grain, separating the bran and a small amount of grain. The bran outlet 13 is located above the bran after the secondary wind screening. The bran can be sent out through the bran outlet 13, while a small amount of grain can be retained in the U-shaped structure of the screening channel 11 and move to the air inlet 14 under the action of gravity.

[0031] Optional, such as Figure 2 , 3 As shown, the air supply port 15 is located on the outer side of the U-shaped structure of the screening channel 11.

[0032] Among them, such as Figure 3 As shown, the air inlet 14 and the chaff outlet 13, combined with the U-shaped structure of the screening channel 11, form a bent air duct. The chaff and a small amount of grain will move along the air duct under the influence of the wind. However, the chaff and the small amount of grain have a certain inertia and will not move completely along the air duct. At this time, the chaff and the small amount of grain are subjected to secondary air screening through the supplementary air inlet 15 located on the outer side of the U-shaped structure. Due to its large surface area and light weight, the chaff is blown inward by the wind at the supplementary air inlet 15, while the grain, being heavier, deflects less, thus separating the chaff and the small amount of grain under the action of secondary air screening.

[0033] Optionally, the separation mechanism 1 is further provided with an air regulating plate 16 between the air supply port 15 and the air inlet 14. The air regulating plate 16 is rotatably disposed in the screening channel 11. When the air regulating plate 16 is adjusted, the area of ​​the air inlet 14 is enlarged or reduced, thereby making a fine adjustment to the air direction. The structure and adjustment method of the air regulating plate 16 are existing technologies. However, in this solution, the air regulating plate 16 not only adjusts the air force of the air inlet 14, but also drives the adjustment of the air force of the air supply port 15.

[0034] Among them, the air regulating plate 16 is also provided with a control handle 161 on the outside of the separation mechanism 1. The user can adjust the angle of the air regulating plate 16 by controlling the handle 161, and use the air regulating plate 16 to adjust the air force of the air supply port 15 and the air inlet 14.

[0035] By setting the air regulating plate 16, the air force of the air supply port 15 and the air inlet 14 can be adjusted according to actual needs, thereby adapting to different grains and expanding the usability of the rice bran separation device.

[0036] Optionally, the separation mechanism 1 further includes a grain storage box 17, which is located between the air supply port 15 and the bran outlet 13. The grain storage box 17 is disposed on one side of the screening channel 11 and is connected to the screening channel 11.

[0037] In this embodiment of the invention, the grain storage box 17 and the sieving channel 11 are an integrated structure. However, those skilled in the art can also make the grain storage box 17 and the sieving channel 11 detachable structures according to actual needs. The grain storage box 17 is located outside the U-shaped structure of the sieving channel 11, so that the grain can enter the grain storage box 17 after being centrifuged, while the chaff flows out through the chaff outlet 13 above.

[0038] The grain storage box 17 in this embodiment of the invention may also be provided with a vertical partition structure, with the chaff outlet 13 located on the other side of the partition structure, so as to realize the separation of chaff and grain by using the partition structure.

[0039] Optionally, the rice husk separating device further includes:

[0040] The suction pipe 2 is connected to the bran outlet 13.

[0041] The suction duct 2 can be connected to a fan or other structure. The suction duct 2 draws out the air from the separation mechanism 1, reducing the air pressure inside the separation mechanism 1. Under the action of air pressure, external air enters the separation mechanism 1 from the air supply port 15 and the air inlet 14, forming air for the air screen.

[0042] Specifically, the grain storage box 17 also includes a box body and a cover 171. The box body is provided with a cleaning port, and the cover 171 is located at the cleaning port and is movably connected to the box body.

[0043] Among them, such as Figure 1 As shown, the cleaning port is located at the top of the box. Those skilled in the art can also place the cleaning port on the side or other locations according to actual needs.

[0044] Rice bran is the outermost oil film after rice is hulled. Because rice bran is very sticky and easy to stick, traditional rice bran separation equipment requires a rotary screen to separate rice and rice bran, but it is very easy to get clogged, making normal production impossible and the efficiency extremely low. The embodiment of the present invention is suitable for separating rice and oil film. By setting the box and cover 171, it is convenient for staff to clean the rice bran and grains attached to the grain storage box 17. It can be cleaned regularly during use, which greatly improves the separation of rice and rice bran.

[0045] Specifically, the cover 171 is hinged to the box body and / or the cover 171 is detachably connected to the box body.

[0046] The lid 171 and the box body can be hinged, allowing the grain box 17 to be opened and closed by folding the lid 171. Alternatively, the lid 171 and the box body can be detachable, allowing for a detachable connection between them.

[0047] Optionally, the rice husk separating device further includes:

[0048] Rice huller 3, the bottom of which is connected to the feed inlet 12.

[0049] Among them, the rice huller 3 grinds the grains, separating the grains from the chaff.

[0050] Optionally, the rice husk separating device further includes:

[0051] Airlock 4, the bottom of the rice huller 3 is connected to the feed inlet 12 through airlock 4.

[0052] Among them, the airlock 4 is specifically a rotary feeder, which can feed the separated grains and chaff in the rice huller 3 into the separation mechanism 1 in multiple batches for separation.

[0053] This invention is applicable to a wide range of applications, including rice bran separation and rice husk separation, due to the addition of an air inlet. The inclusion of a grain storage box improves separation efficiency. This invention can completely separate broken rice, residual rice, and rice germ from rice bran. Compared with existing technologies where an average of five kilograms of grain are contained in one ton of rice bran, this invention greatly saves grain and has a separation effect far superior to existing technologies.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading this application specification, they can still modify or make equivalent substitutions to the specific implementation of the present invention, but these modifications or changes do not depart from the protection scope of the pending claims of the present invention.

Claims

1. A rice bran separator, characterized in that, The rice bran separation device includes: The separation mechanism includes a screening channel comprising a feeding channel and an upper air channel. An air inlet is located at the intersection of the feeding channel and the upper air channel. The feeding channel is at least partially downward, and the upper air channel is at least partially upward. A chaff outlet is located on the upper air channel. The feeding channel has a feeding inlet. A mixture of grains and chaff is fed to the upper air channel through the feeding channel. The upper air channel can blow the chaff into the upper air channel and send it out through the chaff outlet. The upper air channel also has at least one supplementary air inlet between the air inlet and the chaff outlet. The air direction of the supplementary air inlet is different from the air direction blown in at the air inlet, and there is an overlapping area. The screening channel is U-shaped, with the air inlet located at the bottom of the U-shape and also serving as the grain discharge outlet; the feed inlet and bran outlet are both located at the top of the U-shape. The air inlet is located on the outer side of the U-shape; the air from the air inlet performs a secondary air sieving on the chaff and the grains that have not been separated from the chaff; the chaff blown by the air inlet is deflected inward. The separation mechanism also includes a grain storage box, which is located between the air inlet and the bran outlet. The grain storage box is set on one side of the screening channel and is connected to the screening channel. The grain storage box is located outside the U-shaped structure of the screening channel, so that the grain enters the grain storage box after being centrifuged out. The rice husk separating device also includes a rice huller, the bottom of which is connected to the feed inlet.

2. The rice bran separator according to claim 1, characterized in that, The separation mechanism is equipped with an air regulating plate at the air inlet. The air regulating plate is rotatably installed in the screening channel. The rotation of the air regulating plate can adjust the air force between the air supply port and the air inlet.

3. The rice bran separator according to claim 1, characterized in that, The rice bran separator also includes: A suction tube, which is connected to the bran outlet.

4. The rice bran separator according to claim 1, characterized in that, The grain storage box also includes a box body and a lid. The box body is provided with a cleaning port, and the lid is located at the cleaning port and is movably connected to the box body.

5. The rice bran separator according to claim 4, characterized in that, The cover is hinged to the box and / or the cover is detachably connected to the box.

6. The rice bran separator according to claim 1, characterized in that, The rice bran separator also includes: An airlock is provided at the bottom of the rice huller, which is connected to the feed inlet.

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