A dust removal device for primary screening of corn seeds

Abstract

The present invention relates to the technical field of dust removal devices, and discloses a dust removal device for primary screening and processing of corn seeds, comprising a walking platform, an inner wall of the walking platform is fixedly connected with a funnel, an inner wall of the funnel is fixedly connected with a conveying pipe, the bottom of the conveying pipe is fixedly connected with a flow pipe, and the top of the walking platform is fixedly connected with a U-shaped frame. The present invention can suck bran into the interior of a flow trough, can effectively process dust in the corn transportation process to reduce the dust content in the workshop, and can also collect bran machine dust floating on the water surface to avoid a large amount of bran accumulation inside the device, resulting in excessive bran accumulation to block the exhaust port and the water exchange port, and at the same time can quickly suck the bran on the water surface into the interior of the flow trough, so that the bran collection effect can be further improved, and the bran omission is reduced by the rotation of the suction plate.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal devices, in particular to a dust removal device for primary screening and processing of corn seeds. Background Art

[0002] Traditional dust removal methods, such as simple bag dust removal, have limited filtration efficiency and are difficult to meet the strict dust emission standards for corn seed processing workshops. They have weak ability to capture fine dust. Although cyclone dust removal can handle larger dust particles, it is not effective for smaller dust particles and is prone to clogging when handling high-concentration dust.

[0003] The patent with publication number CN210814436U relates to a dust removal device for corn primary screening and processing, which belongs to the field of corn processing technology. The dust removal device for corn primary screening and processing includes a dust removal component, a filter component and a pumping component. The dust removal component includes a dust removal shell, an air intake pipe, an exhaust pipe and a first gate valve. The air intake pipe is fixedly connected to one side of the dust removal shell. The filter component includes a filter shell and a filter screen. The pumping component includes a water pump and a water spray pipe. Water is stored in the dust removal shell. Wind containing dust and corn bran enters the water through the air intake pipe. The dust and corn bran are filtered by the water and retained in the water. In the water, the wind after being filtered by water is discharged through the exhaust pipe, thereby reducing the dust and corn bran entering the air in the processing workshop with the wind. The device effectively improves the problem of high dust content in the air in the processing workshop during the initial screening of corn, reduces environmental pollution, and reduces the harm of dust to the human body. However, when the device discharges the corn bran and dust in the water, it is easy for the absorbed corn bran to be stored too much in the filter component of the device, which can easily lead to blockage of the exhaust pipe and the water exchange port. Therefore, a dust removal device for the initial screening of corn seeds is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a dust removal device for primary screening and processing of corn seeds in response to the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a dust removal device for primary screening of corn seeds, comprising a walking platform, a funnel fixedly connected to the inner wall of the walking platform, a delivery pipe fixedly connected to the inner wall of the funnel, a flow pipe fixedly connected to the bottom of the delivery pipe, a U-shaped frame fixedly connected to the top of the walking platform, a water tank fixedly connected to the top of the U-shaped frame, a flow trough installed on the inner wall of the U-shaped frame, a motor fixedly connected to the front of the U-shaped frame, a connecting pipe fixedly connected to the left side of the flow trough through a water pump, and the flow The inner wall of the trough is equipped with a suction fan, the output end of the motor is fixedly connected to a reciprocating screw, the circumferential surface of the reciprocating screw is movably connected to a mobile frame, a filter box is installed at the rear of the mobile frame, the inner wall of the flow trough is provided with an anti-blocking mechanism for avoiding blockage, the inner wall of the mobile frame is provided with a quick-release mechanism for quick disassembly and assembly, the inner wall of the filter box is rotatably connected to a suction plate, the central axis of the suction plate is fixedly connected to a transmission wheel, the inner wall of the water tank is fixedly connected to the circumferential surface of the connecting pipe, and the connecting pipe is used to transport the dust-removed water to In the water tank, the circumferential surface of the reciprocating screw is rotatably connected to the inner wall of the U-shaped frame, the circumferential surface of the reciprocating screw is rotatably connected to the inner wall of the flow trough, the surface of the movable frame is slidably connected to the inner wall of the flow trough, and the flow trough is used to limit the position during the operation of the movable frame, the inner wall of the flow trough is in contact with the circumferential surface of the transmission wheel, and the flow trough will provide friction for the transmission wheel during the operation of the transmission wheel, the suction pipe of the suction fan is fixedly connected to the inner wall of the flow trough, and the bran can be sucked into the interior of the flow trough, thereby effectively processing the dust in the corn transportation process to reduce the dust content in the workshop, and the bran machine dust floating on the water surface can also be collected, so that a large amount of bran can be effectively avoided from accumulating inside the device, resulting in excessive bran accumulation and blocking the exhaust port and the water exchange port, so that the service life of the device and the bran processing effect can be effectively improved, and the bran on the water surface can be quickly sucked into the interior of the flow trough, so that the bran collection effect can be further improved, and the bran omission is reduced by the rotation of the suction plate.

[0006] Preferably, the anti-clogging mechanism includes a filter plate, the filter plate is fixedly connected to the inner wall of the flow trough, the inner wall of the flow trough is fixedly connected to a chamfered block 1, the inner wall of the chamfered block 1 is slidably connected to a lifting plate, the left side of the lifting plate is fixedly connected to a push plate, the front of the movable frame is fixedly connected to the pushing frame, the front of the lifting plate is fixedly connected to an oblique plate, the rear of the filter box is fixedly connected to a connecting block 1, the inner wall of the connecting block 1 is fixedly connected to a scraper, the right side of the filter plate and the left side of the push plate are in contact with each other, and the filter plate will filter the water after dust removal, the pushing frame will contact the oblique plate when moving, and the inner wall of the scraper and the flow trough The inner walls are in contact with each other, and the scraper will process the attached impurities, so that the corn bran in the water can be stirred, so that when changing the water, the impurities brought to the surface of the filter plate by the fluidity of the water flow can be cleaned, and it can avoid that when changing the water, the water level drops, resulting in the inability to collect impurities in the water, so that a large amount of impurities in the water accumulate on the surface of the filter plate, making it impossible to change the water and making it impossible to remove dust normally. At the same time, the bran and dust attached to the inner wall of the flow trough can be scraped off, so that the corn bran can be prevented from getting stuck in the gap between the filter box and the inner wall of the flow trough during the movement of the filter box, causing the filter box to get stuck during the movement, affecting the normal collection of corn bran.

[0007] Preferably, the quick-release mechanism includes a limit plate, the limit plate is fixedly connected to the inner wall of the mobile frame, the inner wall of the flow groove is fixedly connected with a chamfered block 2, the top of the chamfered block 2 is fixedly connected with a cylinder, the right side of the filter plate is fixedly connected with a protrusion, the front part of the filter box is fixedly connected with a connecting block 2, the inner wall of the connecting block 2 is slidably connected to a sliding rod through a spring, the inner wall of the sliding rod is fixedly connected with a clamping plate, the circumferential surface of the sliding rod is fixedly connected with a pull plate, the output end of the cylinder is fixedly connected with a connecting rod, and the inner wall of the connecting rod is slidably connected to the spring There is a knocking rod, the left side of the knocking rod is in contact with the right side of the protrusion, and the knocking rod is used to shake off the impurities in the filter plate holes, the inner wall of the limiting plate is in contact with the surface of the card plate, and the card plate locks the filter box, which can shake off the dirt blocked in the holes on the inner wall of the filter plate, thereby improving the water flow rate and accelerating the water flow replacement speed, and then quickly enabling the device to be put into dust removal work, and at the same time being able to contact the limit of the card plate and the limiting plate, so that the filter box can be quickly disassembled, making it convenient for workers to clean the filter box.

[0008] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0009] 1. The dust removal device for primary screening and processing of corn seeds can suck bran into the interior of the flow trough through the coordinated operation of a walking platform, a funnel, a conveying pipe, a circulation pipe, a U-shaped frame, a water tank, a flow trough, a motor, a connecting pipe, a suction fan, a reciprocating screw rod, a movable frame, a filter box, a suction plate, and a transmission wheel, so as to effectively process the dust in the corn transportation process to reduce the dust content in the workshop, and can also collect the bran machine dust floating on the water surface, so as to effectively avoid the accumulation of a large amount of bran in the interior of the device, resulting in excessive accumulation of bran to block the exhaust port and the water exchange port, so as to effectively improve the service life of the device and the bran processing effect, and at the same time, the bran on the water surface can be quickly sucked into the interior of the flow trough, so as to further improve the bran collection effect, and reduce the omission of bran by the rotation of the suction plate.

[0010] 2. The dust removal device for primary screening of corn seeds can stir the corn bran in the water through the coordinated operation among the filter plate, the chamfering block 1, the lifting plate and the push plate, so that the impurities brought to the surface of the filter plate by the fluidity of the water flow can be cleaned when the water is changed. This can avoid the situation where the water level drops during water change, resulting in the inability to collect impurities in the water, causing a large amount of impurities in the water to accumulate on the surface of the filter plate, making it impossible to change the water and making it impossible to remove dust normally.

[0011] 3. The dust removal device for primary screening of corn seeds can scrape off the bran and dust attached to the inner wall of the flow trough through the coordinated operation of the pushing frame, the inclined plate, the connecting block 1 and the scraper, so as to prevent the corn bran from getting stuck in the gap between the filter box and the inner wall of the flow trough during the movement of the filter box, causing the filter box to get stuck during the movement, thereby affecting the normal collection of corn bran.

[0012] 4. The dust removal device for primary screening of corn seeds can shake off the dirt blocked in the holes on the inner wall of the filter plate through the coordinated operation of the limit plate, chamfering block 2, cylinder and protrusion, thereby improving the water flow rate and accelerating the water flow replacement speed, and thus enabling the device to quickly be put into dust removal work.

[0013] 5. The dust removal device for primary screening of corn seeds can contact the limit of the card plate and the limit plate through the coordinated operation between the connecting block 2, the sliding rod, the card plate, the pull plate, the connecting rod, and the knocking rod, so that the filter box can be quickly disassembled, making it convenient for workers to clean the filter box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 A half-section view of the U-shaped frame structure of the present invention;

[0016] Figure 3 A half-section view of the connecting pipe structure of the present invention;

[0017] Figure 4 A half-section view of the movable frame structure of the present invention;

[0018] Figure 5 A half-section diagram of the anti-blocking mechanism of the present invention;

[0019] Figure 6 For the present invention Figure 5 A magnified view of the structure at center A;

[0020] Figure 7 A half-section view of the oblique plate structure of the present invention;

[0021] Figure 8 This is a schematic diagram of the quick release mechanism of the present invention;

[0022] Figure 9 This is a half-section diagram of the second structure of the chamfered block of the present invention;

[0023] Figure 10 For the present invention Figure 9 Enlarged view of the structure at point B in the middle.

[0024] In the figure: 1. walking platform; 2. funnel; 3. conveying pipe; 4. circulation pipe; 5. U-shaped frame; 6. water tank; 7. flow trough; 8. motor; 9. connecting pipe; 10. suction fan; 11. reciprocating screw; 12. moving frame; 13. filter box; 14. suction plate; 15. transmission wheel; 16. anti-blocking mechanism; 161. filter plate; 162. chamfering block 1; 163. lifting plate; 164. push plate; 165. pushing frame; 166. oblique plate; 167. connecting block 1; 168. scraper; 17. quick release mechanism; 171. limit plate; 172. chamfering block 2; 173. cylinder; 174. protrusion; 175. connecting block 2; 176. sliding rod; 177. clamping plate; 178. pull plate; 179. connecting rod; 1710. knocking rod. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1-10, One embodiment of the present invention is: a dust removal device for primary screening of corn seeds, comprising a walking platform 1, the inner wall of the walking platform 1 is fixedly connected with a funnel 2, the inner wall of the funnel 2 is fixedly connected with a conveying pipe 3, the bottom of the conveying pipe 3 is fixedly connected with a circulation pipe 4, the top of the walking platform 1 is fixedly connected with a U-shaped frame 5, the top of the U-shaped frame 5 is fixedly connected with a water tank 6, the inner wall of the U-shaped frame 5 is installed with a flow trough 7, the front of the U-shaped frame 5 is fixedly connected with a motor 8, the left side of the flow trough 7 is fixedly connected with a connecting pipe 9 through a water pump, the inner wall of the flow trough 7 is installed with a suction fan 10, the output end of the motor 8 is fixedly connected with a reciprocating screw rod 11, the circumferential surface of the reciprocating screw rod 11 is movably connected with a moving frame 12, the rear part of the moving frame 12 is installed with a filter box 13, the inner wall of the flow trough 7 is provided with an anti-blocking mechanism 16 for avoiding blockage, The inner wall of the frame 12 is provided with a quick-release mechanism 17 for quick disassembly and assembly. The inner wall of the filter box 13 is rotatably connected to the suction plate 14, and the central axis of the suction plate 14 is fixedly connected to the transmission wheel 15. The inner wall of the water tank 6 is fixedly connected to the circumferential surface of the connecting pipe 9, and the connecting pipe 9 is used to transport the dust-removed water to the water tank 6. The circumferential surface of the reciprocating screw 11 is rotatably connected to the inner wall of the U-shaped frame 5, and the circumferential surface of the reciprocating screw 11 is rotatably connected to the inner wall of the flow groove 7. The surface of the movable frame 12 is slidably connected to the inner wall of the flow groove 7, and the flow groove 7 is used to limit the movement of the movable frame 12. The inner wall of the flow groove 7 is in contact with the circumferential surface of the transmission wheel 15, and the flow groove 7 will provide friction for the transmission wheel 15 during the operation of the transmission wheel 15. The suction pipe of the suction fan 10 is fixedly connected to the inner wall of the flow groove 7.

[0027] During the initial screening of corn, corn seeds enter the funnel 2 through the circulation pipe 4. At this time, when the corn falls, the suction fan 10 starts to absorb the bran and dust mixed in the corn seeds, thereby sucking the bran into the interior of the flow trough 7, and then effectively processing the dust in the corn transportation process to reduce the dust content in the workshop. When the bran is sucked into the inner wall of the flow trough 7, the bran will float on the surface of the water inside the flow trough 7. At this time, the motor 8 starts and drives the reciprocating screw 11 to rotate. The rotation of the reciprocating screw 11 drives the movable frame 12 to move through the thread opened on the surface. The movement of the movable frame 12 drives the filter box 13 to move, so that the bran machine dust floating on the water surface can be collected, so that a large amount of bran can be effectively avoided from accumulating inside the device, resulting in excessive accumulation of bran to block the exhaust port and water exchange port, so that the service life of the device and the bran processing effect can be effectively improved.

[0028] When collecting bran, the movement of the filter box 13 drives the suction plate 14 to move, and the movement of the suction plate 14 drives the transmission wheel 15 to move. The movement of the transmission wheel 15 will generate friction with the inner wall of the flow groove 7, thereby enabling the transmission wheel 15 to rotate. The rotation of the transmission wheel 15 drives the suction plate 14 to rotate, so that the bran on the water surface can be quickly sucked into the interior of the filter box 13, so that the bran collection effect can be further improved, and the situation of bran omission can be reduced by the rotation of the suction plate 14.

[0029] Overall working principle: During the initial screening of corn, the suction fan 10 starts to absorb the bran and dust mixed in the corn seeds, and sucks the bran into the interior of the flow trough 7, which can effectively process the dust in the corn transportation process to reduce the dust content in the workshop. The motor 8 starts and drives the reciprocating screw 11 to rotate to avoid blockage caused by excessive accumulation of bran, so as to effectively improve the service life of the device and the bran processing effect. The transmission wheel 15 rotates to drive the suction plate 14 to rotate, so that the bran on the water surface can be quickly sucked into the interior of the filter box 13, so that the bran collection effect can be further improved and the residual bran can be reduced.

[0030] The anti-clogging mechanism 16 includes a filter plate 161, which is fixedly connected to the inner wall of the flow trough 7, and the inner wall of the flow trough 7 is fixedly connected with a chamfered block 162, and the inner wall of the chamfered block 162 is slidably connected with a lifting plate 163, and the left side of the lifting plate 163 is fixedly connected with a push plate 164, the front of the movable frame 12 is fixedly connected with a pushing frame 165, and the front of the lifting plate 163 is fixedly connected with an oblique plate 166, and the rear of the filter box 13 is fixedly connected with a connecting block 167, and the inner wall of the connecting block 167 is fixedly connected with a scraper 168, the right side of the filter plate 161 contacts the left side of the push plate 164, and the filter plate 161 will filter the water after dust removal, the pushing frame 165 will contact the oblique plate 166 when moving, the inner wall of the scraper 168 will contact the inner wall of the flow trough 7, and the scraper 168 will process the attached impurities.

[0031] When the bran is processed, the movable frame 12 moves and drives the pushing frame 165 to move. During the movement of the pushing frame 165, it will contact the bottom of the inclined plate 166 and generate an extrusion force on the inclined plate 166, thereby forcing the inclined plate 166 to move upward. The inclined plate 166 moves upward and drives the lifting plate 163 to move upward. When the lifting plate 163 moves, it will contact the chamfered block 162 and limit it, so that the lifting plate 163 can move smoothly. The lifting plate 163 moves upward and drives the push plate 164 to move upward, so that the corn bran in the water can be stirred, so that when changing water, the impurities brought to the surface of the filter plate 161 by the fluidity of the water flow can be cleaned, and it can be avoided that when changing water, the water level drops, resulting in the inability to collect impurities in the water, so that the impurities in the water accumulate on the surface of the filter plate 161 in large quantities, making it impossible to change water and impossible to remove dust normally.

[0032] When collecting corn bran, the movement of the filter box 13 drives the connecting block 167 to move, and the movement of the connecting block 167 drives the scraper 168 to move. The movement of the scraper 168 will contact the inner wall of the flow groove 7, thereby scraping off the bran and dust attached to the inner wall of the flow groove 7, avoiding the corn bran getting stuck in the gap between the filter box 13 and the inner wall of the flow groove 7 during the movement of the filter box 13, causing the filter box 13 to get stuck during the movement, affecting the normal collection of corn bran.

[0033] The overall working principle: when processing the bran, the movable frame 12 moves to drive the pushing frame 165 to move. During the movement of the pushing frame 165, it will contact the bottom of the inclined plate 166, so that when the water in the water tank 6 is exchanged with the water inside the flow trough 7, it can avoid the impurities in the water inside the flow trough 7 being blocked in the water exchange port when changing the water. When collecting corn bran, the scraper 168 moves to contact the inner wall of the flow trough 7, and can scrape off the bran attached to the inner wall of the flow trough 7 to avoid affecting the normal operation of the device.

[0034] See also Figures 1-10On the basis of the above embodiment, in another embodiment of the present invention, the quick-release mechanism 17 includes a limit plate 171, the limit plate 171 is fixedly connected to the inner wall of the mobile frame 12, the inner wall of the flow groove 7 is fixedly connected with a chamfered block 172, the top of the chamfered block 172 is fixedly connected with a cylinder 173, the right side of the filter plate 161 is fixedly connected with a protrusion 174, the front part of the filter box 13 is fixedly connected with a connecting block 175, the inner wall of the connecting block 175 is slidably connected with a sliding rod 176 through a spring, and the sliding The inner wall of the rod 176 is fixedly connected with a clamping plate 177, the circumferential surface of the sliding rod 176 is fixedly connected with a pull plate 178, the output end of the cylinder 173 is fixedly connected with a connecting rod 179, the inner wall of 179 is slidably connected with 1710 through a spring, the left side of the knocking rod 1710 is in contact with the right side of the protrusion 174, and the knocking rod 1710 is used to shake off impurities in the hole of the filter plate 161, the inner wall of the limiting plate 171 is in contact with the surface of the clamping plate 177, and the clamping plate 177 locks the filter box 13.

[0035] When changing water, the cylinder 173 starts to drive the connecting rod 179 to move, and the movement of the connecting rod 179 drives the knocking rod 1710. During the movement of the knocking rod 1710, it contacts the bump 174 and generates an extrusion force on the knocking rod 1710, causing the knocking rod 1710 to move to the right. When the knocking rod 1710 passes over the bump 174, the knocking rod 1710 generates an impact force on the surface of the filter plate 161 through the spring, thereby being able to shake off the dirt blocked in the holes on the inner wall of the filter plate 161. This can improve the water flow rate, speed up the water flow replacement speed, and thus quickly enable the device to be put into dust removal work. At the same time, when too much corn bran is collected inside the filter box 13, pull the pull plate 178 and drive the sliding rod 176 to move upward. The sliding rod 176 moves upward and drives the card plate 177 to move upward, so that it can contact the card plate 177 and the limit plate 171, so that the filter box 13 can be quickly disassembled, making it convenient for workers to clean the filter box 13.

[0036] The overall working principle: when changing water, when the knocking rod 1710 passes over the protrusion 174, the knocking rod 1710 generates an impact force on the surface of the filter plate 161 through the spring, which can shake off the dirt blocked in the holes on the inner wall of the filter plate 161, thereby improving the water flow rate, and thus quickly enabling the device to be put into dust removal work. At the same time, when too much corn bran is collected inside the filter box 13, the pull plate 178 is pulled and the sliding rod 176 is driven to move upward, so that the filter box 13 can be quickly disassembled, which is convenient for workers to clean the filter box 13, so as to reduce the cleaning time of the device.

[0037] The present invention provides a dust removal device for primary screening of corn seeds. There are numerous methods and approaches for implementing this technical solution. The above is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A dust removal device for primary screening of corn seeds, comprising a walking platform (1), characterized in that: The inner wall of the walking platform (1) is fixedly connected to a funnel (2), the inner wall of the funnel (2) is fixedly connected to a delivery pipe (3), the bottom of the delivery pipe (3) is fixedly connected to a flow pipe (4), the top of the walking platform (1) is fixedly connected to a U-shaped frame (5), the top of the U-shaped frame (5) is fixedly connected to a water tank (6), the inner wall of the U-shaped frame (5) is installed with a flow trough (7), the front of the U-shaped frame (5) is fixedly connected to a motor (8), the left side of the flow trough (7) is fixedly connected to a connecting pipe (9) via a water pump, and the inner wall of the flow trough (7) is installed with a A suction fan (10), wherein the output end of the motor (8) is fixedly connected to a reciprocating screw (11), the circumferential surface of the reciprocating screw (11) is movably connected to a movable frame (12), a filter box (13) is installed at the rear of the movable frame (12), an anti-blocking mechanism (16) for avoiding blockage is provided on the inner wall of the flow trough (7), a quick-release mechanism (17) for quick disassembly is provided on the inner wall of the movable frame (12), a suction plate (14) is rotatably connected to the inner wall of the filter box (13), and a central axis of the suction plate (14) is fixedly connected to a transmission wheel (15); The inner wall of the water tank (6) is fixedly connected to the circumferential surface of the connecting pipe (9), and the connecting pipe (9) is used to transport the dust-removed water into the water tank (6). The circumferential surface of the reciprocating screw (11) is rotatably connected to the inner wall of the U-shaped frame (5). The circumferential surface of the reciprocating screw (11) is rotatably connected to the inner wall of the flow groove (7). The surface of the movable frame (12) is slidably connected to the inner wall of the flow groove (7), and the flow groove (7) is used to limit the position during the operation of the movable frame (12). The inner wall of the flow groove (7) contacts the circumferential surface of the transmission wheel (15), and the flow groove (7) will provide friction for the transmission wheel (15) during the operation of the transmission wheel (15). The suction pipe of the suction fan (10) is fixedly connected to the inner wall of the flow groove (7).

2. The dust removal device for primary screening of corn seeds according to claim 1, characterized in that: The anti-blocking mechanism (16) includes a filter plate (161), the filter plate (161) is fixedly connected to the inner wall of the flow groove (7), the inner wall of the flow groove (7) is fixedly connected to a chamfered block (162), the inner wall of the chamfered block (162) is slidably connected to a lifting plate (163), the left side of the lifting plate (163) is fixedly connected to a push plate (164), and the front of the movable frame (12) is fixedly connected to a push frame (165).

3. The dust removal device for primary screening of corn seeds according to claim 2, characterized in that: The front of the lifting plate (163) is fixedly connected to an oblique plate (166), the rear of the filter box (13) is fixedly connected to a connecting block 1 (167), and the inner wall of the connecting block 1 (167) is fixedly connected to a scraper (168).

4. The dust removal device for primary screening of corn seeds according to claim 3, characterized in that: The right side of the filter plate (161) contacts the left side of the push plate (164), and the filter plate (161) will filter the water after dust removal. The push frame (165) will contact the inclined plate (166) when moving. The inner wall of the scraper (168) contacts the inner wall of the flow groove (7), and the scraper (168) will process the attached impurities.

5. The dust removal device for primary screening of corn seeds according to claim 4, characterized in that: The quick-release mechanism (17) includes a limit plate (171), the limit plate (171) is fixedly connected to the inner wall of the movable frame (12), the inner wall of the flow trough (7) is fixedly connected to a second chamfering block (172), the top of the second chamfering block (172) is fixedly connected to a cylinder (173), the right side of the filter plate (161) is fixedly connected to a protrusion (174), the front of the filter box (13) is fixedly connected to a second connecting block (175), and the inner wall of the second connecting block (175) is slidably connected to a sliding rod (176) via a spring.

6. The dust removal device for primary screening of corn seeds according to claim 5, characterized in that: The inner wall of the sliding rod (176) is fixedly connected to a clamping plate (177), the circumferential surface of the sliding rod (176) is fixedly connected to a pull plate (178), the output end of the cylinder (173) is fixedly connected to a connecting rod (179), and the inner wall of the connecting rod (179) is slidably connected to a knocking rod (1710) via a spring.

7. The dust removal device for primary screening of corn seeds according to claim 6, characterized in that: The left side of the knocking rod (1710) contacts the right side of the protrusion (174), and the knocking rod (1710) is used to shake off impurities in the hole of the filter plate (161). The inner wall of the limiting plate (171) contacts the surface of the clamping plate (177), and the clamping plate (177) locks the filter box (13).

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