Impurity removal equipment for agricultural products

Abstract

The invention discloses agricultural product impurity removal equipment, and belongs to the technical field of agricultural product processing.The agricultural product impurity removal equipment comprises an impurity removal box, a winnowing box is fixedly connected to the top of the impurity removal box, a winnowing assembly is arranged in an inner cavity of the winnowing box, and the winnowing assembly comprises an upper wind disturbing plate fixedly connected to the inner wall of the winnowing box; a lower air disturbing plate fixedly connected with the winnowing box is arranged below the upper air disturbing plate, a feeding pipe is fixedly connected to the right side of the top of the winnowing box, a material blocking plate is fixedly connected to the bottom of the left side of an inner cavity of the feeding pipe, and a separating assembly is arranged in an inner cavity of the impurity removing box. The winnowing box, the winnowing assembly and the longitudinal discharging assembly are used in cooperation to separate light impurities in crops or wizened crops, and the separation assembly and the transverse discharging assembly are used in cooperation to conduct secondary separation on the light impurities and heavy impurities in the crops. Therefore, the purposes of effective impurity removal, double impurity removal procedures and effective separation aiming at the quality can be achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural product processing, and particularly relates to an impurity removal device for agricultural products. Background Art

[0002] Removing impurities from crops refers to the operation process of removing impurities mixed in crops during the crop production process. These impurities may include weed seeds, seeds of different crops, broken grains, grains with disease spots, grains damaged by insects, soil clods, stones, metal objects, etc. The main purpose of removing impurities from crops is to improve the purity and quality of crops, ensure the yield and quality of crops, reduce the impact of impurities on subsequent processing and storage processes, and also help prevent the spread and diffusion of pests and diseases.

[0003] Since the impurity components of different varieties of agricultural products are not the same, mechanical impurity removal equipment may not be able to specifically remove impurities of different types and weights through screening or winnowing, resulting in more impurity removal processes, long time consumption, low yield, and lack of coordinated cooperation between each processing device, and unable to form a systematic and continuous impurity removal process. Therefore, it is necessary to provide an impurity removal device for agricultural products, which adopts a winnowing method for lightweight impurities and shriveled crops, and a screening method for impurities with larger mass, specifically removes different types of impurities, and at the same time, winnowing and screening cooperate with each other to reduce the processing procedures and perform continuous impurity removal. Summary of the Invention

[0004] The purpose of the present invention is to provide an impurity removal device for agricultural products, which adopts a winnowing method for lightweight impurities and shriveled crops, and a screening method for impurities with larger mass, specifically removes different types of impurities, and at the same time, winnowing and screening cooperate with each other to reduce the processing procedures and perform continuous impurity removal, so as to solve the above technical problems.

[0005] The technical solution for the present invention to solve the above technical problems is as follows: An impurity removal device for agricultural products, the device includes an impurity removal box: a winnowing box is fixedly connected to the top of the impurity removal box, a winnowing component is arranged in the inner cavity of the winnowing box, the winnowing component includes an upper air-disturbing plate fixedly connected to the inner wall of the winnowing box, a lower air-disturbing plate fixedly connected to the winnowing box is arranged below the upper air-disturbing plate, a feed pipe is fixedly connected to the right side of the top of the winnowing box, a baffle plate is fixedly connected to the bottom of the left side of the inner cavity of the feed pipe, a separation component is arranged in the inner cavity of the impurity removal box, the separation component includes support sleeves fixedly connected to both sides of the inner cavity of the impurity removal box, a sieve cylinder is rotatably connected between the two support sleeves, a transverse discharge component is arranged at the bottom of the inner cavity of the impurity removal box, and a longitudinal discharge component is arranged at the bottom of the inner cavity of the winnowing box.

[0006] Preferably, a partition is fixedly connected to the right side of the inner cavity of the air separation box. A through-air sieve plate is fixedly connected to the top of the partition. An air inlet is formed at the bottom of the right side of the air separation box. A plurality of louvers are fixedly connected to the inner cavity of the air inlet. A negative pressure air duct communicated with the air separation box is fixedly connected to the left side of the air separation box.

[0007] Preferably, a connecting air duct is fixedly installed on the left side of the top of the impurity removal box. Three hollow shaft rods are fixedly connected to the inner cavity of the sieve cylinder. A rotary joint is fixedly connected to the bottom end of the connecting air duct. One side of the rotary joint away from the connecting air duct is fixedly connected to the hollow shaft rod. The connecting air duct is communicated with the hollow shaft rod through the rotary joint.

[0008] Preferably, a plurality of connecting rods are arranged between two adjacent hollow shaft rods. Both ends of each connecting rod are flange-connected to the hollow shaft rods through flange plates. The end of the connecting rod is fixedly welded to the flange plate. Two filter meshes are arranged in the inner cavity of the sieve cylinder. The filter meshes are sleeved on the surface of the connecting rods.

[0009] Preferably, the hollow shaft rods on both sides are rotationally connected to support sleeves. The right end of the hollow shaft rod on the right side is fixedly connected to a connecting head through a flange. A driving motor is fixedly installed on the right side of the inner cavity of the impurity removal box. The output shaft of the driving motor is fixedly connected to the right end of the connecting head.

[0010] Preferably, the horizontal discharging assembly includes a hopper fixedly connected to the inner cavity of the impurity removal box. A first spiral rod is rotationally connected to the inner cavity of the hopper. Belt pulleys are fixedly connected to the right end of the first spiral rod and the surface of the connecting head respectively. The two belt pulleys are connected by a belt in transmission. A first discharging pipe communicated with the hopper is fixedly connected to the right side of the bottom of the hopper. The bottom end of the first discharging pipe penetrates through the bottom of the impurity removal box.

[0011] Preferably, the vertical discharging assembly includes an aggregate pipe fixedly connected to the inner cavity of the air separation box. A servo motor is fixedly installed at the rear of the air separation box. A second spiral rod is rotationally connected to the inner cavity of the aggregate pipe. The rear end of the second spiral rod penetrates through the rear of the air separation box and is fixedly connected to the output shaft of the servo motor. Aggregate plates are fixedly connected to both sides of the aggregate pipe. The aggregate plates are fixedly connected to the inner wall of the air separation box. The front end of the aggregate pipe penetrates through the front of the air separation box and is fixedly connected to a second discharging pipe. The second discharging pipe is located at the bottom of the aggregate pipe and is communicated with the aggregate pipe.

[0012] Preferably, a rotary brush is rotationally connected to the top of the inner cavity of the impurity removal box. The bristles of the rotary brush are in rolling contact with the surface of the sieve cylinder. A driving gear ring is fixedly connected to the left side of the surface of the sieve cylinder. A stress gear is fixedly connected to the left side of the surface of the rotary brush. The driving gear ring and the stress gear are meshed with each other.

[0013] Preferably, a discharge hopper communicating with the support sleeve is fixedly connected to the bottom of the left side of the support sleeve, and a transfer hopper is fixedly connected to the bottoms of the lower air deflector and the partition plate. A transfer port adapted to the transfer hopper is provided on the right side of the support sleeve on the right side.

[0014] A method for using an agricultural product impurity removal device, the method steps are as follows:

[0015] Step 1: First, connect the end of the negative pressure air duct far from the air separation box to the air inlet of the negative pressure dust collector. Then, start the drive motor and the aggregate pipe, and input the agricultural crops into the interior of the air separation box from the inner cavity of the feed pipe. Then, under the blocking action of the baffle plate in the air separation box, the thickness of the agricultural crops during falling decreases, reducing the covering of impurities by the agricultural crops, and the agricultural crops fall to the top of the air passing sieve plate. At this time, due to the negative pressure suction effect of the negative pressure air duct on the inner cavity of the air separation box, the lightweight impurities or shriveled agricultural crops in the agricultural crops enter the channel formed by the upper air deflector and the lower air deflector. Then, the lightweight impurities enter the inner cavity of the negative pressure air duct from the left side of the inner cavity of the air separation box for discharge;

[0016] Step 2: The shriveled agricultural crops in the agricultural crops impact on the left side of the inner cavity of the upper air deflector. Under the blocking action of the upper air deflector, the gravity of the shriveled agricultural crops and the downward suction force, the shriveled agricultural crops fall into the inner cavities of the aggregate plate and the aggregate pipe, and are discharged from the inner cavity of the second discharge pipe to the front side under the rotation of the second spiral rod;

[0017] Step 3: The agricultural crops rolling down from the surface of the air passing sieve plate enter the inner cavity of the transfer hopper and then enter the inner cavity of the sieve cylinder. The sieve cylinder rotates under the transmission of the connecting head and the drive motor, tumbling the agricultural crops in the inner cavity of the sieve cylinder, causing the impurities covered in the inner cavity of the agricultural crops to rise. At the same time, the impurities with larger mass in the agricultural crops are discharged from the pores on the surface of the sieve cylinder into the inner cavity of the hopper, and under the combined use of the belt pulley and the belt, they are separated from the inner cavity of the impurity removal box under the rotational drive of the first spiral rod;

[0018] Step 4: Since the connecting air duct is connected to the negative pressure air duct, a certain suction force is generated inside the hollow shaft rod. The lightweight impurities rising in the inner cavity of the sieve cylinder enter the inside of the hollow shaft rod from the pores on the surface of the filter screen and then enter the inner cavity of the negative pressure air duct through the connecting air duct for centralized discharge. Affected by the slope of the inner wall of the sieve cylinder, the agricultural crops on the right side of the inner cavity of the sieve cylinder slowly move from right to left, and finally are discharged from the inner cavity of the sieve cylinder at the discharge hopper to complete the impurity removal;

[0019] Step 5: During the rotation of the sieve cylinder, the drive gear ring rotates accordingly and drives the force-bearing gear meshing with it to rotate, causing the brush roller to rotate in the opposite direction to the sieve cylinder. During the rotation of the brush roller, the bristles are driven to insert into the pores on the surface of the sieve cylinder to dislodge the impurities or agricultural crops that may block the pores on the surface of the sieve cylinder.

[0020] The beneficial effects of the present invention are as follows: By using the air separation box, the air separation component and the longitudinal discharging component in cooperation, lightweight impurities or shriveled crops in the crops are separated. Under the cooperation of the separation component and the transverse discharging component, the lightweight impurities and heavier impurities in the crops are separated for the second time, so as to achieve the purpose of effectively removing impurities according to quality, double-channel impurity removal process and effective separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Through the detailed description in combination with the following drawings, the above and / or other advantages of the present invention will become clearer and easier to understand. These drawings are only schematic and do not limit the present invention, wherein:

[0022] Figure 1 is a three-dimensional schematic diagram of an embodiment of the present invention;

[0023] Figure 2 is a front sectional view of an embodiment of the present invention;

[0024] Figure 3 is an embodiment of the present invention Figure 2 a partial enlarged view of point A in;

[0025] Figure 4 is an embodiment of the present invention Figure 2 a partial enlarged view of point B in;

[0026] Figure 5 is a front sectional view of the separation component and the transverse discharging component of an embodiment of the present invention;

[0027] Figure 6 is a three-dimensional exploded view of the transverse discharging component and the longitudinal discharging component of an embodiment of the present invention;

[0028] Figure 7 is a three-dimensional exploded view of the separation component of an embodiment of the present invention;

[0029] Figure 8 is a three-dimensional schematic diagram of the support sleeve and the discharging hopper of an embodiment of the present invention.

[0030] In the drawings, the components represented by the reference numerals are as follows:

[0031] 1. Impurity Removal Box, 2. Air Separation Box, 3. Air Separation Component, 31. Upper Disturbing Air Plate, 32. Lower Disturbing Air Plate, 33. Feed Pipe, 34. Baffle Plate, 35. Partition Plate, 36. Air Passing Sieve Plate, 37. Air Inlet, 38. Louvers, 39. Negative Pressure Air Duct, 4. Separation Component, 41. Support Sleeve, 42. Sieve Tube, 43. Connecting Air Duct, 44. Rotary Joint, 45. Hollow Shaft Rod, 46. Connecting Rod, 47. Filter Screen, 48. Connector, 49. Driving Motor, 5. Horizontal Discharge Component, 51. Hopper, 52. First Screw Rod, 53. Belt Pulley, 54. First Discharge Pipe, 6. Vertical Discharge Component, 61. Aggregating Pipe, 62. Servo Motor, 63. Second Screw Rod, 64. Aggregating Plate, 65. Second Discharge Pipe, 7. Rotary Brush, 8. Driving Gear Ring, 9. Load-bearing Gear, 10. Discharge Hopper, 11. Material Transfer Opening, 12. Material Transfer Hopper. Specific Embodiment

[0032] In the following, embodiments of the agricultural product impurity removal equipment of the present invention will be described with reference to the drawings.

[0033] The embodiments described herein are specific specific embodiments of the present invention for explaining the concept of the present invention, and are all explanatory and exemplary, and should not be construed as limiting the embodiments of the present invention and the scope of the present invention. Except for the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the content disclosed in the claims and the specification of this application. These technical solutions include technical solutions that make any obvious substitutions and modifications to the embodiments described herein.

[0034] The drawings in this specification are schematic diagrams to assist in explaining the concept of the present invention, and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structures of the components in the embodiments of the present invention, the drawings are not drawn in the same proportion. The same reference numerals are used to represent the same parts.

[0035] Embodiment 1: Figure 1-8An agricultural product impurity removal device showing an embodiment of the present invention. The device includes an impurity removal box 1: A wind selection box 2 is fixedly connected to the top of the impurity removal box 1. A wind selection component 3 is arranged in the inner cavity of the wind selection box 2. The wind selection component 3 includes an upper air-disturbing plate 31 fixedly connected to the inner wall of the wind selection box 2. Below the upper air-disturbing plate 31, there is a lower air-disturbing plate 32 fixedly connected to the wind selection box 2. On the right side of the top of the wind selection box 2, a feed pipe 33 is fixedly connected. At the bottom of the left side of the inner cavity of the feed pipe 33, a baffle plate 34 is fixedly connected. On the right side of the inner cavity of the wind selection box 2, a partition plate 35 is fixedly connected. At the top of the partition plate 35, an air-permeable sieve plate 36 is fixedly connected. At the bottom of the right side of the wind selection box 2, an air inlet 37 is opened. A plurality of louvers 38 are fixedly connected in the inner cavity of the air inlet 37. On the left side of the wind selection box 2, a negative pressure air pipe 39 connected to it is fixedly connected. Through the setting of the wind selection component 3, the upper air-disturbing plate 31 and the lower air-disturbing plate 32 are used in cooperation to provide a separation channel for impurities in the crops. Under the cooperation of the baffle plate 34 and the air-permeable sieve plate 36, the crops are thinned and discharged downward, so that the impurities in the crops can be effectively separated under the action of negative pressure wind force. At the same time, under the cooperation of the air inlet 37, the louvers 38 and the negative pressure air pipe 39, a negative pressure channel is formed in the inner cavity of the wind selection box 2, so that the impurities in the crops are effectively separated. A separation component 4 is arranged in the inner cavity of the impurity removal box 1. The separation component 4 includes support sleeves 41 fixedly connected to both sides of the inner cavity of the impurity removal box 1. At the bottom of the left side of the left support sleeve 41, a discharge hopper 10 connected to it is fixedly connected. At the bottom of the lower air-disturbing plate 32 and the partition plate 35, a transfer hopper 12 is fixedly connected. On the right side of the right support sleeve 41, a transfer port 11 adapted to the transfer hopper 12 is opened. A sieve cylinder 42 is rotatably connected between the two support sleeves 41. A rolling brush 7 is rotatably connected to the top of the inner cavity of the impurity removal box 1. The bristles of the rolling brush 7 are in rolling contact with the surface of the sieve cylinder 42. On the left side of the surface of the sieve cylinder 42, a driving gear ring 8 is fixedly connected. On the left side of the surface of the rolling brush 7, a force-bearing gear 9 is fixedly connected. The driving gear ring 8 and the force-bearing gear 9 are meshed with each other. On the left side of the top of the impurity removal box 1, a connecting air pipe 43 is fixedly installed. Three hollow shaft rods 45 are fixedly connected to the inner cavity of the sieve cylinder 42. The bottom end of the connecting air pipe 43 is fixedly connected with a rotary joint 44. The side of the rotary joint 44 away from the connecting air pipe 43 is fixedly connected with the hollow shaft rod 45. The connecting air pipe 43 is communicated with the hollow shaft rod 45 through the rotary joint 44. Between adjacent two hollow shaft rods 45, a plurality of connecting rods 46 are arranged. Both ends of the connecting rod 46 are flange-connected to the hollow shaft rod 45 through flange plates. The end of the connecting rod 46 is welded and fixed to the flange plate. Two filter meshes 47 are arranged in the inner cavity of the sieve cylinder 42. The filter meshes 47 are sleeved on the surface of the connecting rod 46. The hollow shaft rods 45 on both sides are rotatably connected with the support sleeves 41. The right end of the right hollow shaft rod 45 is fixedly connected with a connection head 48 through a flange. On the right side of the inner cavity of the impurity removal box 1, a driving motor 49 is fixedly installed. The output shaft of the driving motor 49 is fixedly connected with the right end of the connection head 48. Through the setting of the separation component 4,Among them, the combined use of the connecting head 48 and the driving motor 49 plays a role in driving the rotation of the hollow shaft rod 45, enabling the sieve cylinder 42 to rotate in the inner cavity of the impurity removal box 1. As a result, the crops entering the inner cavity of the sieve cylinder 42 can be turned over, allowing the heavier crops to be discharged from the pores on the surface of the sieve cylinder 42. At the same time, under the action of the centrifugal force generated by the rotation of the sieve cylinder 42, the crops are closely attached to the inner wall of the sieve cylinder 42. The lightweight impurities located in the middle of the sieve cylinder 42 enter the inner cavity of the connecting air duct 43 and finally enter the inner cavity of the negative pressure air duct 39 for centralized discharge under the combined use of the connecting rod 46, the hollow shaft rod 45, and the filter screen 47. A transverse discharge assembly 5 is provided at the bottom of the inner cavity of the impurity removal box 1, and a longitudinal discharge assembly 6 is provided at the bottom of the inner cavity of the air separation box 2.,

[0036] Embodiment 2: It is basically the same as Embodiment 1. Furthermore: The transverse discharge assembly 5 includes a hopper 51 fixedly connected to the inner cavity of the impurity removal box 1. A first screw rod 52 is rotatably connected to the inner cavity of the hopper 51. Belt pulleys 53 are fixedly connected to the right end of the first screw rod 52 and the surface of the connecting head 48. The two belt pulleys 53 are connected by a belt. A first discharge pipe 54 is fixedly connected to the right side of the bottom of the hopper 51 and is communicated with the hopper 51. The bottom end of the first discharge pipe 54 penetrates through the bottom of the impurity removal box 1. Through the setting of the transverse discharge assembly 5, the belt pulleys 53 and the belt play a linkage role in the first screw rod 52, enabling the first screw rod 52 to rotate in the inner cavity of the hopper 51 and centrally discharging the heavier impurities.,

[0037] Embodiment 3: It is basically the same as Embodiment 1. Furthermore: The longitudinal discharge assembly 6 includes an aggregate pipe 61 fixedly connected to the inner cavity of the air separation box 2. A servo motor 62 is fixedly installed at the rear side of the air separation box 2. A second screw rod 63 is rotatably connected to the inner cavity of the aggregate pipe 61. The rear end of the second screw rod 63 penetrates through the rear side of the air separation box 2 and is fixedly connected to the output shaft of the servo motor 62. Aggregate plates 64 are fixedly connected to both sides of the aggregate pipe 61, and the aggregate plates 64 are fixedly connected to the inner wall of the air separation box 2. The front end of the aggregate pipe 61 penetrates through the front side of the air separation box 2 and is fixedly connected to a second discharge pipe 65. The second discharge pipe 65 is located at the bottom of the aggregate pipe 61 and is communicated with the aggregate pipe 61. Through the setting of the longitudinal discharge assembly 6, under the drive of the servo motor 62 and the combined use of the aggregate pipe 61 and the second screw rod 63, the shriveled crops contained in the impurities separated for the first time are centrally collected and discharged.,

[0038] A method for using an agricultural product impurity removal device, the method steps are as follows:

[0039] Step 1: First, connect one end of the negative pressure air duct 39 far from the air separation box 2 to the air inlet of the negative pressure dust collector. Then, turn on the drive motor 49 and the aggregate pipe 61, and input the crops into the interior of the air separation box 2 from the inner cavity of the feed pipe 33. Then, due to the blocking effect of the baffle plate 34 inside the air separation box 2, the thickness of the crops during falling decreases, reducing the covering of impurities by the crops, and the crops fall to the top of the air passing sieve plate 36. At this time, because the negative pressure air duct 39 generates a certain negative pressure suction effect on the inner cavity of the air separation box 2, the lightweight impurities or shriveled crops in the crops enter the channel formed by the upper air disturbing plate 31 and the lower air disturbing plate 32. Then, the lightweight impurities enter the inner cavity of the negative pressure air duct 39 from the left side of the inner cavity of the air separation box 2 for discharge;

[0040] Step 2: The shriveled crops in the crops impact on the left side of the inner cavity of the upper air disturbing plate 31. Under the blocking effect of the upper air disturbing plate 31, the gravity of the shriveled crops and the downward suction force, the shriveled crops fall into the inner cavities of the aggregate plate 64 and the aggregate pipe 61, and are discharged from the inner cavity of the second discharge pipe 65 to the front side under the rotation of the second screw rod 63;

[0041] Step 3: The crops rolling down from the surface of the air passing sieve plate 36 enter the inner cavity of the transfer hopper 12 and then enter the inner cavity of the sieve cylinder 42. The sieve cylinder 42 rotates under the transmission of the connecting head 48 and the drive motor 49, tumbling the crops in the inner cavity of the sieve cylinder 42, causing the impurities covering the inner cavity of the crops to rise. At the same time, the crops containing heavier impurities are discharged from the inner cavity of the sieve cylinder 42 through the pores on the surface of the sieve cylinder 42 and enter the inner cavity of the hopper 51, and under the cooperation of the belt pulley 53 and the belt, and under the rotational drive of the first screw rod 52, they are discharged from the inner cavity of the impurity removal box 1;

[0042] Step 4: Since the connecting air duct 43 is connected to the negative pressure air duct 39, a certain suction force exists inside the hollow shaft rod 45. The lightweight impurities rising in the inner cavity of the sieve cylinder 42 enter the inside of the hollow shaft rod 45 through the pores on the surface of the filter screen 47 and then enter the inner cavity of the negative pressure air duct 39 through the connecting air duct 43 for centralized discharge. Affected by the slope of the inner wall of the sieve cylinder 42, the crops on the right side of the inner cavity of the sieve cylinder 42 slowly move from right to left, and finally are discharged from the inner cavity of the sieve cylinder 42 at the discharge hopper 10 to complete impurity removal;

[0043] Step 5: During the rotation of the sieve cylinder 42, the driving gear ring 8 rotates accordingly and drives the meshing force receiving gear 9 to rotate, causing the brush roller 7 to rotate in the opposite direction to the sieve cylinder 42. During the rotation of the brush roller 7, the bristles are driven to insert into the pores on the surface of the sieve cylinder 42 to dislodge the impurities or crops that may block the pores on the surface of the sieve cylinder 42.

[0044] In summary, for the agricultural product impurity removal equipment, through the combined use of the air separation box 2, the air separation component 3 and the longitudinal discharging component 6, lightweight impurities or shriveled crops in the agricultural crops are separated. Under the combined use of the separation component 4 and the transverse discharging component 5, lightweight impurities and heavier impurities in the agricultural crops are separated for the second time, so as to achieve the purpose of effective impurity removal for quality and double-channel impurity removal processes and effective separation.

[0045] The disclosed technical features are not limited to the combinations with other disclosed features. Those skilled in the art can also make other combinations among the technical features according to the purpose of the invention, subject to achieving the purpose of the present invention.

Claims

1. An agricultural product impurity removal device, characterized in that, The device includes a impurity removal box (1): A winnowing box (2) is fixedly connected to the top of the impurity removal box (1). A winnowing component (3) is arranged in the inner cavity of the winnowing box (2). The winnowing component (3) includes an upper air-disturbing plate (31) fixedly connected to the inner wall of the winnowing box (2). A lower air-disturbing plate (32) fixedly connected to the winnowing box (2) is arranged below the upper air-disturbing plate (31). A feed pipe (33) is fixedly connected to the right side of the top of the winnowing box (2). A baffle plate (34) is fixedly connected to the bottom of the left side of the inner cavity of the feed pipe (33). A separation component (4) is arranged in the inner cavity of the impurity removal box (1). The separation component (4) includes support sleeves (41) fixedly connected to both sides of the inner cavity of the impurity removal box (1). A sieve cylinder (42) is rotatably connected between the two support sleeves (41). A transverse discharge component (5) is arranged at the bottom of the inner cavity of the impurity removal box (1). A longitudinal discharge component (6) is arranged at the bottom of the inner cavity of the winnowing box (2).

2. An agricultural product impurity removal device according to claim 1, characterized in that, A partition plate (35) is fixedly connected to the right side of the inner cavity of the winnowing box (2). An air-passing sieve plate (36) is fixedly connected to the top of the partition plate (35). An air inlet (37) is opened at the bottom of the right side of the winnowing box (2). A plurality of louvers (38) are fixedly connected to the inner cavity of the air inlet (37). A negative pressure air pipe (39) is fixedly connected to the left side of the winnowing box (2) and is communicated with it.

3. An agricultural product impurity removal device according to claim 2, characterized in that, A connecting air pipe (43) is fixedly installed on the left side of the top of the impurity removal box (1). Three hollow shaft rods (45) are fixedly connected to the inner cavity of the sieve cylinder (42). The bottom end of the connecting air pipe (43) is fixedly connected to a rotary joint (44). The side of the rotary joint (44) far from the connecting air pipe (43) is fixedly connected to the hollow shaft rod (45). The connecting air pipe (43) is communicated with the hollow shaft rod (45) through the rotary joint (44).

4. An agricultural product impurity removal device according to claim 3, characterized in that, A plurality of connecting rods (46) are arranged between adjacent two hollow shaft rods (45). Both ends of the connecting rod (46) are flange-connected to the hollow shaft rod (45) through flange plates. The end of the connecting rod (46) is fixedly welded to the flange plate. Two filter meshes (47) are arranged in the inner cavity of the sieve cylinder (42). The filter meshes (47) are sleeved on the surface of the connecting rod (46).

5. An agricultural product impurity removal device according to claim 4, characterized in that, The hollow shaft rods (45) located on both sides are rotatably connected to the support sleeves (41). The right end of the hollow shaft rod (45) located on the right side is fixedly connected to a connecting head (48) through a flange. A driving motor (49) is fixedly installed on the right side of the inner cavity of the impurity removal box (1). The output shaft of the driving motor (49) is fixedly connected to the right end of the connecting head (48).

6. An agricultural product impurity removal device according to claim 5, characterized in that, The horizontal material discharging assembly (5) includes a hopper (51) fixedly connected to the inner cavity of the impurity removal box (1). A first screw rod (52) is rotatably connected to the inner cavity of the hopper (51). Belt pulleys (53) are fixedly connected to the right end of the first screw rod (52) and the surface of the connecting head (48). The two belt pulleys (53) are connected by a belt. A first discharge pipe (54) communicating with the hopper (51) is fixedly connected to the right side of the bottom of the hopper (51). The bottom end of the first discharge pipe (54) penetrates through the bottom of the impurity removal box (1).

7. The agricultural product impurity removal device according to claim 6, characterized in that, The vertical material discharging assembly (6) includes an aggregate pipe (61) fixedly connected to the inner cavity of the air separation box (2). A servo motor (62) is fixedly installed on the rear side of the air separation box (2). A second screw rod (63) is rotatably connected to the inner cavity of the aggregate pipe (61). The rear end of the second screw rod (63) penetrates through the rear side of the air separation box (2) and is fixedly connected to the output shaft of the servo motor (62). Aggregate plates (64) are fixedly connected to both sides of the aggregate pipe (61). The aggregate plates (64) are fixedly connected to the inner wall of the air separation box (2). The front end of the aggregate pipe (61) penetrates through the front side of the air separation box (2) and is fixedly connected to a second discharge pipe (65). The second discharge pipe (65) is located at the bottom of the aggregate pipe (61) and communicates with the aggregate pipe (61).

8. An agricultural product impurity removal device according to claim 7, characterized in that, A rotary brush (7) is rotatably connected to the top of the inner cavity of the impurity removal box (1). The bristles of the rotary brush (7) are in rolling contact with the surface of the sieve drum (42). A driving gear ring (8) is fixedly connected to the left side of the surface of the sieve drum (42). A stress gear (9) is fixedly connected to the left side of the surface of the rotary brush (7). The driving gear ring (8) and the stress gear (9) are meshed with each other.

9. The agricultural product impurity removal device according to claim 8, wherein, A discharge hopper (10) communicating with the left support sleeve (41) is fixedly connected to the bottom of the left side. A transfer hopper (12) is fixedly connected to the bottom of the lower air deflector (32) and the partition plate (35). A transfer port (11) adapted to the transfer hopper (12) is provided on the right side of the right support sleeve (41).

10. A method for using an agricultural product impurity removal device, which is applied to the agricultural product impurity removal device described in claim 9, characterized in that, The method steps are as follows: Step 1: First, connect the end of the negative pressure air pipe (39) far from the air separation box (2) to the air inlet of the negative pressure dust collector. Then, start the driving motor (49) and the aggregate pipe (61), and input the crops into the interior of the air separation box (2) from the inner cavity of the feed pipe (33). Then, under the blocking action of the baffle plate (34) inside the air separation box (2), the thickness of the crops during falling decreases, reducing the covering of impurities by the crops, and the crops fall onto the top of the air-permeable sieve plate (36). At this time, due to the negative pressure suction effect of the negative pressure air pipe (39) on the inner cavity of the air separation box (2), the lightweight impurities or shriveled crops in the crops enter the channel formed by the upper air deflector (31) and the lower air deflector (32). Then, the lightweight impurities enter the inner cavity of the negative pressure air pipe (39) from the left side of the inner cavity of the air separation box (2) for discharge; Step 2: The shriveled crops in the crops impact on the left side of the inner cavity of the upper air deflector (31). Under the blocking effect of the upper air deflector (31), the gravity of the shriveled crops, and the downward suction force, the shriveled crops fall into the inner cavities of the aggregate plate (64) and the aggregate pipe (61), and are discharged forward from the inner cavity of the second discharge pipe (65) under the rotation of the second screw rod (63). Step 3: The crops rolling down from the surface of the air-permeable sieve plate (36) enter the inner cavity of the transfer hopper (12) and then enter the inner cavity of the sieve cylinder (42). The sieve cylinder (42) rotates under the transmission of the connecting head (48) and the drive motor (49), tumbling the crops in the inner cavity of the sieve cylinder (42), causing the impurities hidden in the inner cavity of the crops to rise. At the same time, the impurities with a larger mass in the crops are discharged from the inner cavity of the sieve cylinder (42) through the pores on the surface of the sieve cylinder (42) and enter the inner cavity of the hopper (51), and under the combined use of the pulley (53) and the belt, they are separated from the inner cavity of the impurity removal box (1) under the rotational drive of the first screw rod (52). Step 4: Since the connecting air pipe (43) is connected to the negative pressure air pipe (39), a certain suction force is generated inside the hollow shaft rod (45). The lightweight impurities rising in the inner cavity of the sieve cylinder (42) enter the inside of the hollow shaft rod (45) through the pores on the surface of the filter screen (47) and then enter the inner cavity of the negative pressure air pipe (39) through the connecting air pipe (43) for centralized discharge. Affected by the slope of the inner wall of the sieve cylinder (42), the crops on the right side of the inner cavity of the sieve cylinder (42) slowly move from right to left and finally are discharged from the inner cavity of the sieve cylinder (42) at the discharge hopper (10), completing the impurity removal. Step 5: During the rotation of the sieve cylinder (42), the driving gear ring (8) rotates accordingly and drives the meshing force-bearing gear (9) to rotate, causing the brush roller (7) to rotate in the opposite direction to the sieve cylinder (42). During the rotation of the brush roller (7), the bristles are driven to insert into the pores on the surface of the sieve cylinder (42) to dislodge the impurities or crops that may block the pores on the surface of the sieve cylinder (42).

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