Rice hull grain extractor for grain processing

Abstract

The invention discloses a rice hull grain extractor for grain processing, and relates to the technical field of grain processing equipment, the rice hull grain extractor comprises a shell and a feed hopper connected to the shell, and further comprises a rice hull feed auger rotationally connected in the shell and located below the discharge end of the feed hopper, a multi-stage separation assembly for separating rice husks from inferior grains is arranged below the rice husk feeding auger; the multi-stage separation assembly comprises a first shedding plate which is rotationally connected into the shell and used for loosening rice husks for the first time, and a primary air duct body used for separating the rice husks and inferior grains for the first time is arranged in the shell and located above the first shedding plate; after rice husks enter equipment through the feeding hopper, the rice husk feeding auger is matched with the frequency converter, the rotating speed can be flexibly adjusted according to actual requirements, and the rice husks are evenly distributed. By means of the design, the problem that a feeding layer is not uniform is effectively avoided, unstable air speed caused by non-uniform feeding is avoided, and then the phenomenon that inferior grains are lost or entrained is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of grain processing equipment, and particularly to a rice husk grain lifter for grain processing. Background Technique

[0002] The rice husk grain lifter is mainly used in the rice husk secondary processing industry to extract plump grains, broken rice, imperfect grains, and shriveled grains from the rice husk mixture. The rice husk grain lifter mainly uses the principle of winnowing. According to the different specific gravities of rice husks, paddy, shriveled grains, and imperfect grains, the paddy, shriveled grains, and imperfect grains with larger specific gravities are separated from the rice husks and collected separately. Currently, the rice husk grain lifting device adjusts the wind force through a flow baffle installed in the husk channel, so that the air volume can extract the husk impurities in the rice without affecting the rice from falling into the discharge channel, thereby quickly separating impurities such as husks in the rice.

[0003] The existing Chinese patent (Publication No.: CN217797382U) discloses a specific gravity type vertical rice husk grain lifter, which includes a housing. The left side of the top of the housing is provided with an air outlet, the right side of the top of the housing is provided with a feed inlet, the bottom of the housing is provided with a discharge outlet, a baffle is fixed on the right side of the inner top of the housing, a first chute plate and a second chute plate are arranged at the bottom of the inner part of the housing, a first air supplement port is arranged in the middle of the top of the housing, a second air supplement port is arranged at the top of the right side of the housing, and a third air supplement port is arranged at the bottom of the left side of the housing. By adjusting the baffle and the chute plate, the present invention can utilize the difference in specific gravity inertia of the materials, and under the action of the air volume, make the materials play a better grain lifting effect in a weightless state, so that the light impurities are sucked away upwards by the wind, and the heavy grains fall from the discharge outlet under the action of gravity for centralized collection.

[0004] However, there are certain problems in the use of the above-mentioned equipment. First of all, the above-mentioned equipment imports raw materials through the feed inlet, but there is no material leveling component after the raw materials pass. Therefore, the rice husk feed layer may be uneven during the feeding process. If the feed layer is thin, the resistance at this place is small, and the wind is likely to pass through the place with small resistance, resulting in uneven wind speed. In the place with large wind speed, secondary grains (such as plump grains, broken rice, imperfect grains, shriveled grains, and grass seeds, etc.) will be lost. If the rice husk feed layer is too thick, when the wind sucks away the rice husks, it will entrain a part of the secondary grains. Summary of the Invention

[0005] The purpose of the present invention is to provide a rice husk grain lifter for grain processing to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the present invention provides a rice husk grain extractor for grain processing, which includes a housing and a feed hopper connected to the housing. It includes a rice husk feed auger rotatably connected inside the housing and located below the discharge end of the feed hopper. A multi-stage separation assembly for separating rice husks from secondary grains is provided below the rice husk feed auger.

[0007] The multi-stage separation assembly includes a first flow plate rotatably connected inside the housing for initially loosening the rice husks. An air duct body for initially separating rice husks and secondary grains is provided inside the housing and is located above the first flow plate. A second flow plate is rotatably connected inside the housing and is located below the first flow plate for secondarily loosening the rice husks. A secondary air duct body for secondarily separating rice husks and secondary grains is provided above the second flow plate.

[0008] A chute is connected inside the housing and is located between the first flow plate and the second flow plate for guiding the rice husks and secondary grains that are not sucked away by the primary air duct body.

[0009] The primary air duct body and the secondary air duct body are also provided with an adjustment assembly for adjusting the wind speed.

[0010] The adjustment assembly includes a primary air duct wind speed adjustment plate rotatably provided inside the primary air duct body and a secondary air duct wind speed adjustment plate rotatably connected inside the secondary air duct body.

[0011] Furthermore, a secondary grain hopper and a rice husk settling chamber are respectively provided inside the housing. The secondary grain hopper is located below the second flow plate. The feed end of the rice husk settling chamber is located below the discharge ends of the primary air duct body and the secondary air duct body. A secondary grain auger is rotatably connected inside the secondary grain hopper, and a rice husk discharge member is rotatably connected inside the rice husk settling chamber.

[0012] Furthermore, a blower is provided on one side of the housing. The air suction end of the blower is connected to a conveying pipeline, and the other end of the conveying pipeline is connected to the housing. A pulse dust collector is connected inside the housing, and the pulse dust collector is interconnected with the conveying pipeline.

[0013] Furthermore, the rice husk discharge member includes a discharge cylinder connected inside the housing. A rice husk discharge auger is rotatably connected inside the discharge cylinder, and a counterweight flap is rotatably connected to the discharge end of the discharge cylinder.

[0014] Furthermore, a plurality of sieve holes arranged in a rectangular array are provided on both the first flow plate and the second flow plate, and the sieve holes are arranged in a triangular shape.

[0015] Furthermore, the adjustment assembly further includes a screw rod coaxially arranged with the primary air duct wind speed adjustment plate and the secondary air duct wind speed adjustment plate. A nut for fixing the screw rod is threadedly connected to one side of the screw rod.

[0016] Further, a frequency converter is provided on one side of the housing, and the frequency converter is electrically connected to the rice husk feeding auger.

[0017] Further, two mounting seats are connected inside the housing, and the first chute plate and the second chute plate are respectively rotatably connected to the two mounting seats.

[0018] Further, two sets of angle locking components are provided inside the housing, and the two sets of angle locking components correspond to the first chute plate and the second chute plate respectively;

[0019] The angle locking component includes a connecting frame connected inside the housing. A resisting block is slidably connected inside the connecting frame. The free end of the resisting block extends to the outside of the connecting frame and is used for lifting the angle. A sliding block is connected to the bottom of the resisting block. A fixing bolt is connected inside the sliding block. Both ends of the fixing bolt extend to the outside of the connecting frame and are threadedly connected with limiting nuts.

[0020] Further, guiding grooves for the sliding of the fixing bolt are formed on both sides of the connecting frame.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. After the rice husk enters the equipment through the feeding hopper, the rice husk feeding auger cooperates with the frequency converter, and can flexibly adjust the rotation speed according to actual needs, and evenly distribute the rice husk. This design effectively avoids the problem of uneven feeding layer, avoids the unstable wind speed caused by uneven feeding, and further reduces the loss or entrainment of inferior grains.

[0023] 2. The sieve holes on the first chute plate and the second chute plate are used to assist in loosening the rice husk, and combined with the wind speed adjustment of the primary air duct and the secondary air duct, two separations of the rice husk and the inferior grains are realized. Compared with the traditional single separation, this multi-stage separation method improves the separation efficiency, makes the separation of the rice husk and the inferior grains more thorough, and effectively improves the overall efficiency and quality of the rice husk grain lifting link in the grain processing process.

[0024] 3. In this setting, the sedimentation principle is used to replace the traditional cyclone sedimentation of materials. In the rice husk sedimentation chamber, the rice husk naturally settles by its own gravity and air resistance. The settled rice husk enters the discharge cylinder and is conveyed through the rice husk discharge auger. Secondly, in the output link, a counterweight flap structure is used to replace the traditional air lock. By reasonably adjusting the counterweight, the discharge process of the rice husk can be better controlled, the sedimentation collection and output of the rice husk are realized, and the equipment cost is reduced.

[0025] 4. The fan, the conveying pipeline and the pulse dust collector work together to extract and purify the gas in the equipment, effectively isolate the rice husk and the dust, and the purified gas is discharged back into the atmosphere.

[0026] 5. The angle locking component can adjust the angles of the first chute plate and the second chute plate. Operators can make adjustments according to the actual conditions such as the characteristics of rice husks and wind speed, further improving the movement path of rice husks on the chute plate and the degree of looseness to enhance the separation effect. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the flow direction of rice husks in the present invention;

[0029] Figure 3 It is a schematic diagram of the connection structure of the cylindrical auger and the counterweight flap in the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the first chute plate in the present invention;

[0031] Figure 5 It is a schematic diagram of the overall mechanism of the adjusting component in the present invention;

[0032] Figure 6 In the present invention Figure 1 The enlarged structure diagram at A;

[0033] Figure 7 In the present invention Figure 6 The enlarged structure diagram at B;

[0034] Figure 8 It is a schematic flow diagram of a conventional grain elevator.

[0035] In the figure: 1. Feed hopper; 2. Rice husk feed auger; 3. Primary air duct air speed adjustment plate; 4. Primary air duct body; 5. First chute plate; 501. Sieve holes; 6. Slide plate; 7. Secondary air duct air speed adjustment plate; 8. Second chute plate; 9. Secondary air duct body; 10. Secondary grain hopper; 11. Secondary grain auger; 12. Rice husk sedimentation chamber; 13. Rice husk discharging member; 1301. Discharge cylinder; 1302. Counterweight flap; 14. Pulse dust collector; 15. Conveyor pipe; 16. Fan; 1701. Connection frame; 1702. Contact block; 1703. Slide block; 1704. Fixed bolt; 1705. Limit nut; 1706. Guide groove; 18. Self-locking motor; 19. Mounting seat. Detailed Embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figure 1-8 , the present invention provides a technical solution: a rice husk grain extractor for grain processing, including a housing and a feed hopper 1 connected to the housing. It includes a rice husk feed auger 2 rotatably connected inside the housing and located below the discharge end of the feed hopper 1. A multi-stage separation assembly for separating rice husks and inferior grains is arranged below the rice husk feed auger 2;

[0038] The multi-stage separation assembly includes a first chute plate 5 rotatably connected inside the housing for initially loosening the rice husks. An air duct body 4 for initially separating rice husks and inferior grains is arranged inside the housing and is located above the first chute plate 5. A second chute plate 8 is rotatably connected inside the housing and is located below the first chute plate 5 for secondarily loosening the rice husks. A secondary air duct body 9 for secondarily separating rice husks and inferior grains is arranged above the second chute plate 8;

[0039] A chute 6 is connected inside the housing and is located between the first chute plate 5 and the second chute plate 8 for guiding the rice husks and inferior grains that are not sucked away by the air duct body 4;

[0040] The primary air duct body 4 and the secondary air duct body 9 are also provided with an adjustment assembly for adjusting the wind speed;

[0041] The adjustment assembly includes a primary air duct wind speed adjustment plate 3 rotatably arranged inside the primary air duct body 4 and a secondary air duct wind speed adjustment plate 7 rotatably connected inside the secondary air duct body 9.

[0042] During specific implementation, the rice husks enter from the feed hopper 1 and are conveyed and evenly distributed by the rice husk feed auger 2. The rice husks fall onto the first chute plate 5 for initial loosening, and then in the area of the primary air duct body 4, using the wind speed difference, the rice husks and inferior grains are initially separated. The rice husks and inferior grains that are not sucked away by the primary air duct body 4 fall onto the second chute plate 8 through the chute 6 for secondary loosening and then are secondarily separated in the area of the secondary air duct body 9. The primary air duct wind speed adjustment plate 3 and the secondary air duct wind speed adjustment plate 7 can respectively adjust the wind speed of the corresponding air ducts. In this setting, the first set rice husk feed auger 2 can evenly distribute the rice husks and improve the feeding situation. The multi-stage separation assembly is more efficient than the single separation of existing equipment through two times of loosening and separation.

[0043] Please refer to Figure 1-8 , an inferior grain hopper 10 and a rice husk settling chamber 12 are respectively arranged inside the housing. Among them, the inferior grain hopper 10 is located below the second chute plate 8, and the feed end of the rice husk settling chamber 12 is located below the discharge ends of the primary air duct body 4 and the secondary air duct body 9. An inferior grain auger 11 is rotatably connected inside the inferior grain hopper 10, and a rice husk discharge member 13 is rotatably connected inside the rice husk settling chamber 12.

[0044] During specific implementation, in the multi-stage separation process, the inferior grains fall under the action of gravity into the inferior grain hopper 10 located below the second chute plate 8, and the inferior grain auger 11 rotates to send out the inferior grains. The rice husks sucked away by the primary air duct body 4 and the secondary air duct body 9 enter the rice husk sedimentation chamber 12, and after sedimentation therein, are sent out by the rice husk discharging member 13. In this setting, the inferior grain hopper 10 and the inferior grain auger 11 cooperate to achieve the collection and transportation of the inferior grains; the rice husk sedimentation chamber 12 and the rice husk discharging member 13 cooperate to achieve the sedimentation collection and output of the rice husks.

[0045] Please refer to Figure 1-8 , a blower 16 is provided on one side of the housing. The air suction end of the blower 16 is connected to a conveying pipeline 15, and the other end of the conveying pipeline 15 is connected to the housing. A pulse dust collector 14 is connected inside the housing, and the pulse dust collector 14 is interconnected with the conveying pipeline 15.

[0046] It should be noted that, for specific reference Figure 8 , in the prior art during use, generally multiple devices such as a cyclone, an air lock, and a pulse dust removal device are equipped to achieve the dust removal effect.

[0047] During specific implementation, the blower 16 extracts the gas inside the housing through the air suction end via the conveying pipeline 15, and the pulse dust collector 14 filters and isolates the rice husks and dust in the gas, so that the purified gas is extracted by the blower 16 and discharged back into the atmosphere. This setting can effectively purify and discharge the gas without the need for additional devices such as a cyclone to assist in purification or control the air flow, reducing the equipment cost.

[0048] Please refer to Figure 1-8 , the rice husk discharging member 13 includes a discharging cylinder 1301 connected inside the housing. A rice husk discharging auger is rotatably connected inside the discharging cylinder 1301, and a counterweight flap 1302 is rotatably connected to the discharging end of the discharging cylinder 1301.

[0049] During specific implementation, after the rice husks settle in the rice husk sedimentation chamber 12, they enter the discharging cylinder 1301, and the rice husk discharging auger rotates to convey the rice husks. The counterweight flap 1302 can adjust the counterweight according to the rice husk output to control the discharging process. In this setting, the design of the counterweight flap 1302 can flexibly adapt to different rice husk outputs.

[0050] Please refer to Figure 1-8 , a plurality of sieve holes 501 arranged in a rectangular array are formed on both the first chute plate 5 and the second chute plate 8, and the sieve holes 501 are arranged in a triangular shape.

[0051] During specific implementation, when the rice husks move on the first chute plate 5 and the second chute plate 8, the sieve holes 501 can assist in further loosening the rice husks and at the same time allow some fine impurities to pass through.

[0052] Please refer to Figure 1-8, the adjusting assembly further includes a screw rod coaxially arranged with the primary air duct air speed adjusting plate 3 and the secondary air duct air speed adjusting plate 7, and a nut for fixing the screw rod is threadedly connected to one side of the screw rod.

[0053] During specific implementation, rotate the screw rod. Since the screw rod is coaxially arranged with the primary air duct air speed adjusting plate 3 and the secondary air duct air speed adjusting plate 7, the rotation of the screw rod will drive the primary air duct air speed adjusting plate 3 and the secondary air duct air speed adjusting plate 7 to rotate synchronously. When the primary air duct air speed adjusting plate 3 and the secondary air duct air speed adjusting plate 7 are adjusted to the appropriate positions, rotate the nut, and utilize the thread friction between the nut and the screw rod to fix the screw rod at the current position. At this time, the angles of the primary air duct air speed adjusting plate 3 and the secondary air duct air speed adjusting plate 7 are locked.

[0054] Please refer to Figure 1-8 , a frequency converter is arranged on one side of the housing, and the frequency converter is electrically connected to the rice husk feeding auger 2.

[0055] During specific implementation, the frequency converter is electrically connected to the rice husk feeding auger 2. By changing the electrical parameters, the rotation speed of the rice husk feeding auger 2 is adjusted. At the same time, the frequency converter can flexibly adjust the rotation speed of the rice husk feeding auger 2 according to the actual feeding requirements, further ensuring uniform feeding of rice husks.

[0056] Please refer to Figure 1-8 , two mounting seats 19 are connected inside the housing, and the first flow plate 5 and the second flow plate 8 are respectively rotatably connected to the two mounting seats 19.

[0057] During specific implementation, the first flow plate 5 and the second flow plate 8 are rotatably connected to the mounting seats 19 to achieve angle adjustment.

[0058] Please refer to Figure 1-8 , two groups of angle locking components are arranged inside the housing, and the two groups of angle locking components respectively correspond to the first flow plate 5 and the second flow plate 8;

[0059] The angle locking component includes a connecting frame 1701 connected inside the housing. A resisting block 1702 is slidably connected inside the connecting frame 1701. The free end of the resisting block 1702 extends to the outside of the connecting frame 1701 and is used for lifting the angle. A slider 1703 is connected to the bottom of the resisting block 1702. A fixing bolt 1704 is connected inside the slider 1703. Both ends of the fixing bolt 1704 extend to the outside of the connecting frame 1701 and are threadedly connected with limit nuts 1705.

[0060] During specific implementation, when it is necessary to adjust the angles of the first flow plate 5 and the second flow plate 8, loosen the limit nut 1705, slide the fixing bolt 1704 to drive the slider 1703 and the resisting block 1702 to move, and tighten the limit nut 1705 to fix after adjusting the angle.

[0061] Please refer to Figure 1-8, guide grooves 1706 for the sliding of fixing bolts 1704 are provided on both sides of the connecting frame 1701.

[0062] During specific implementation, the guide groove 1706 provides a sliding track for the fixing bolt 1704 to ensure the smooth sliding of the fixing bolt 1704 during the adjustment process.

[0063] Working principle: Rice husks enter the equipment through the feed hopper 1, and the rice husk feed auger 2 rotatably connected to the lower end of the discharge port of the feed hopper 1 starts to work. The frequency converter electrically connected to the rice husk feed auger 2 flexibly adjusts its rotation speed by changing electrical parameters, thereby conveying the rice husks and achieving uniform distribution, effectively improving the feeding situation and avoiding the problem of uneven feeding layers;

[0064] The rice husks evenly divided by the rice husk feed auger 2 fall onto the first chute plate 5 rotatably connected inside the housing. The sieve holes 501 arranged in a rectangular array and in a triangular shape on the first chute plate 5 assist in further loosening the rice husks. The primary air duct body 4 located above the first chute plate 5 generates wind. The primary air duct air speed regulating plate 3 rotatably arranged in the primary air duct body 4 is driven to rotate by a self-locking motor 18 connected to one side of the housing through a coupling, thereby adjusting the air speed in the primary air duct body 4. Utilizing the air speed difference, a large amount of rice husks are sucked away in the area of the primary air duct body 4 to achieve the preliminary separation of rice husks and secondary grains;

[0065] The rice husks and secondary grains not sucked away by the primary air duct body 4 rely on gravity to fall onto the second chute plate 8 through the chute 6 connected inside the housing and located between the first chute plate 5 and the second chute plate 8. The second chute plate 8 is also rotatably connected to the mounting base 19 and can achieve angle adjustment, and its surface is also provided with sieve holes 501 to loosen the rice husks for the second time. The secondary air duct body 9 located above the second chute plate 8 generates suction. The secondary air duct air speed regulating plate 7 rotatably connected in the secondary air duct body 9 is driven to rotate by another self-locking motor 18 through a coupling to adjust the air speed in the secondary air duct body 9, and the rice husks and secondary grains are separated for the second time in this area;

[0066] During the multi-stage separation process, the secondary grains fall into the secondary grain hopper 10 located below the second chute plate 8 under the action of gravity. The secondary grain auger 11 rotatably connected in the secondary grain hopper 10 sends the secondary grains out of the equipment to complete the collection and transportation of the secondary grains. The rice husks sucked away by the primary air duct body 4 and the secondary air duct body 9 enter the rice husk sedimentation chamber 12. Since the space of the rice husk sedimentation chamber 12 is relatively large and the air speed is lower than the suspension speed of the rice husks, the rice husks settle. The settled rice husks enter the discharge cylinder 1301, and the rice husk discharge auger rotatably connected in the discharge cylinder 1301 conveys the rice husks. The counterweight flap 1302 rotatably connected to the discharge end of the discharge cylinder 1301 can adjust the counterweight according to the rice husk output to control the discharge process and achieve the sedimentation collection and output of the rice husks;

[0067] The blower 16 provided on one side of the housing has its air extraction end connected to the pulse dust collector 14 connected inside the housing through the conveying pipeline 15. The blower 16 extracts the gas inside the housing through the air extraction end via the conveying pipeline 15. The pulse dust collector 14 filters and isolates the rice husks and dust in the gas, so that the purified gas is extracted by the blower 16 and discharged back into the atmosphere, effectively purifying the discharged gas, and no additional equipment such as cyclones is required to assist in purification or control the air flow;

[0068] And when it is necessary to adjust the angles of the first flow plate 5 and the second flow plate 8, the operator loosens the limit nuts 1705 at both ends of the fixing bolt 1704 in the angle locking assembly and slides the fixing bolt 1704. The fixing bolt 1704 drives the slider 1703 connected to the bottom of the contact block 1702 to move, and then drives the contact block 1702 to slide in the connecting frame 1701, so as to realize the adjustment of the angles of the first flow plate 5 and the second flow plate 8. After the adjustment is completed, tighten the limit nuts 1705 to fix.

Claims

1. A rice husk grain extractor for grain processing, comprising a housing and a feed hopper (1) connected to the housing, characterized in that, It includes a rice husk feed auger (2) rotatably connected inside the housing and located below the discharge end of the feed hopper (1). A multi-stage separation assembly for separating rice husks from secondary grains is provided below the rice husk feed auger (2). The multi-stage separation assembly includes a first chute plate (5) rotatably connected inside the housing for initially loosening the rice husks. An primary air duct body (4) for initially separating rice husks and secondary grains is provided inside the housing and is located above the first chute plate (5). A second chute plate (8) is rotatably connected inside the housing and is located below the first chute plate (5) for secondarily loosening the rice husks. A secondary air duct body (9) for secondarily separating rice husks and secondary grains is provided above the second chute plate (8). A slide plate (6) is connected inside the housing and is located between the first chute plate (5) and the second chute plate (8) for guiding the rice husks and secondary grains that are not sucked away by the primary air duct body (4). The primary air duct body (4) and the secondary air duct body (9) are also provided with an adjustment assembly for adjusting the air speed. The adjustment assembly includes a primary air duct air speed adjustment plate (3) rotatably provided inside the primary air duct body (4) and a secondary air duct air speed adjustment plate (7) rotatably connected inside the secondary air duct body (9).

2. The rice husk grain extractor for grain processing according to claim 1, wherein: A secondary grain hopper (10) and a rice husk settling chamber (12) are respectively provided inside the housing. The secondary grain hopper (10) is located below the second chute plate (8). The feed end of the rice husk settling chamber (12) is located below the discharge ends of the primary air duct body (4) and the secondary air duct body (9). A secondary grain auger (11) is rotatably connected inside the secondary grain hopper (10). A rice husk discharge member (13) is rotatably connected inside the rice husk settling chamber (12).

3. A rice husk grain extractor for grain processing according to claim 1, characterized in that: A blower (16) is provided on one side of the housing. The air suction end of the blower (16) is connected to a conveying pipeline (15). The other end of the conveying pipeline (15) is connected to the housing. A pulse dust collector (14) is connected inside the housing. The pulse dust collector (14) is connected to the conveying pipeline (15).

4. The rice husk grain extractor for grain processing according to claim 2, characterized in that: The rice husk discharge member (13) includes a discharge cylinder (1301) connected inside the housing. A rice husk discharge auger is rotatably connected inside the discharge cylinder (1301). The discharge end of the discharge cylinder (1301) is rotatably connected to a counterweight flap (1302).

5. A rice husk grain extractor for grain processing according to claim 1, characterized in that: A plurality of sieve holes (501) arranged in a rectangular array are formed on both the first chute plate (5) and the second chute plate (8). The sieve holes (501) are arranged in a triangular shape.

6. The rice husk grain extractor for grain processing according to claim 1, characterized in that: The adjustment assembly further includes a screw coaxially arranged with the primary air duct air speed adjustment plate (3) and the secondary air duct air speed adjustment plate (7). A nut for fixing the screw is threadedly connected to one side of the screw.

7. A rice husk grain extractor for grain processing according to claim 1, characterized in that: A frequency converter is provided on one side of the housing. The frequency converter is electrically connected to the rice husk feed auger (2).

8. A rice husk grain extractor for grain processing according to claim 1, characterized in that: Two mounting seats (19) are connected inside the housing. The first chute plate (5) and the second chute plate (8) are respectively rotatably connected to the two mounting seats (19).

9. A rice husk grain extractor for grain processing according to claim 1, characterized in that: Two groups of angle locking assemblies are provided inside the housing. The two groups of angle locking assemblies respectively correspond to the first chute plate (5) and the second chute plate (8). The angle locking assembly includes a connection frame (1701) connected to the shell, a resistance block (1702) slidably connected to the connection frame (1701), a free end of the resistance block (1702) extending to the outside of the connection frame (1701) and used for lifting the angle, a slider (1703) connected to the bottom of the resistance block (1702), a fixing bolt (1704) connected to the slider (1703), and both ends of the fixing bolt (1704) extending to the outside of the connection frame (1701) and threadedly connected to a limiting nut (1705).

10. A rice husk grain extractor for grain processing as described in claim 9, characterized in that: Both sides of the connection frame (1701) are provided with guide grooves (1706) for the fixing bolts (1704) to slide.

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