A continuous feed impurity separation device

Abstract

The application relates to the technical field of impurity separation, in particular to a continuous feeding impurity separation device which comprises a spiral conveying assembly and a screening assembly. The spiral conveying assembly comprises a conveying motor, a conveying pipe, a conveying shaft arranged in the conveying pipe and spiral conveying leaves fixed on the surface of the conveying shaft. The screening assembly comprises a support, the support comprises a support panel, the conveying pipe is fixedly arranged on the surface of the support panel, and a screening barrel is arranged in a slanting mode. In the process that the screening barrel rotates in a first direction, the stirring shaft drives the stirring leaves to rotate in a second direction, the material abutting against the bottom surface of the screening barrel is pushed in the opposite direction, the material is pushed to the side surface of the screening barrel, the material is beneficially screened, the accumulation is reduced, the area of the material contacting with the screening barrel is increased, the screening surface of the screening barrel is fully utilized, and the impurities are separated.

Description

Technical Field

[0001] This invention relates to the field of impurity separation, and more particularly to a continuous conveying impurity separation device. Background Technology

[0002] Existing technologies disclose several invention patents related to material screening. Chinese patent CN117324245A discloses a continuous grain screening device, including a device base with mounting seats fixed at both ends. A screen cylinder is rotatably mounted between the two sets of mounting seats. The device base also includes an adjustment mechanism, which is mounted on the mounting seats at both ends of the device base. The adjustment mechanism includes a mounting sleeve, a toggle component, and a striking component. The toggle component at one end of the device base is connected to a control mechanism, and the output end of the control mechanism is connected to the toggle component and the screen cylinder at one end of the device base, respectively.

[0003] The existing screening device is a barrel-type screen. During the process of barrel-type powder screening, the material will accumulate on the bottom of the barrel, which is not conducive to the full contact between the lower arc-shaped surface of the screening barrel and the material. The lower half of the arc-shaped screening surface of the screening barrel is idle, which is not conducive to the full utilization of the surface of the screening barrel. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a continuous conveying impurity separation device.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a continuous conveying impurity separation device, comprising a screw conveying assembly and a screening assembly, wherein the screw conveying assembly includes a conveying motor, a conveying pipe, a conveying shaft disposed within the conveying pipe, and screw conveying blades fixed to the surface of the conveying shaft; the screening assembly includes:

[0006] A bracket, the bracket including a support panel, and the delivery pipe being fixedly mounted on the surface of the support panel;

[0007] An inclined sieve barrel includes a screening barrel and a receiving barrel sleeved outside the screening barrel. The screening barrel is rotatably mounted on the support panel and communicates with the conveying pipe through a through-hole on the surface of the support panel. The receiving barrel is fixedly mounted on the support panel.

[0008] Rotary drive assembly for driving the screening drum to rotate;

[0009] The agitation assembly includes an agitation shaft connected to and rotating synchronously with the conveyor shaft, and multiple agitation blades fixedly connected to the surface of the agitation shaft. During the agitation process, the agitation blades push the material accumulated at the bottom of the screening barrel toward the side of the screening barrel, dispersing the accumulated material toward the side of the screening barrel and increasing the contact opportunity between the material and other parts of the screening barrel.

[0010] It should be understood that in the existing technology, during the process of barrel-type powder screening, the material will accumulate towards the bottom of the barrel, which is not conducive to the full contact between the lower arc-shaped surface of the screening barrel and the material. The lower half of the arc-shaped screening surface of the screening barrel is idle, which is not conducive to the full utilization of the surface of the screening barrel.

[0011] This embodiment of the present invention can solve the above problems, and the specific embodiment is as follows:

[0012] During the screening process, the screw conveyor assembly transports the material added through the feed hopper. During the conveying process, the conveyor motor synchronously drives the conveyor shaft, screw conveyor blades, and agitator shaft to rotate synchronously in the first direction. At the same time, the rotary drive assembly is activated, which drives the screening barrel to rotate in the second direction. The first and second directions are opposite. After the material enters the screening barrel, it slides along the bottom surface of the inner wall of the screening barrel. During the sliding process, the material is screened.

[0013] It should be noted that the screening barrel rotates in the second direction. During the rotation, the screening barrel will continuously change its surface to avoid accumulation and blockage. In addition, during the rotation, the friction force will cause the screening barrel wall to move the material, which will shake the material and facilitate the flow of the material, thereby promoting screening and removing impurities.

[0014] As the screening barrel rotates in the first direction, the stirring shaft drives the stirring blades to rotate in the second direction, pushing the material in the opposite direction to the bottom of the screening barrel. This helps to push the material to the side of the screening barrel, which is beneficial for screening the material and reducing accumulation. On the other hand, it can increase the contact area between the material and the screening barrel, so there is reason to make full use of the screening surface of the screening barrel to separate impurities.

[0015] As a further optimized technical solution of the present invention, the agitating blade specifically includes:

[0016] A connecting rod is fixedly sleeved on the surface of the agitator shaft;

[0017] The spiral blade is fixedly connected to the end of the connecting rod and contacts the inner wall of the screening barrel.

[0018] It should be understood that during the stirring process, the spiral blades will move along the inner wall of the screening barrel. When the spiral blades move through the bottom of the screening barrel, they will move some of the accumulated material to the side of the screening barrel. On the other hand, the spiral propulsion of the spiral blades will push the material upward in the screening barrel, which is the opposite direction of the normal flow of material. This allows some material to be screened twice in a localized area, which is beneficial for fully screening the material in that localized area.

[0019] It should be further explained that during the process of the spiral blades pushing, the material being connected is also turned over simultaneously, which helps to increase the fluidity of the material and thus facilitates the thorough screening of the material and the removal of impurities.

[0020] As a further optimized technical solution of the present invention, the connecting rods of the plurality of stirring blades are spirally distributed with the stirring shaft as the axis, and there is a gap between adjacent spiral blades in the axial extension direction of the stirring shaft.

[0021] It should be understood that during the agitation process, there is a gap between the spiral blades along the axial extension of the agitation shaft, which helps the material to have a flow space between the spiral blades and maintain smooth flow.

[0022] As a further optimized technical solution of the present invention, it also includes:

[0023] Multiple connecting frames are located between adjacent spiral blades, and the connecting frames are rotatably connected to the surface of the agitator shaft.

[0024] Multiple material turning plows are fixedly connected to the ends of the connecting frame.

[0025] As the material flows within the space between the spiral blades, the turning plow further agitates the material, causing it to tumble to both sides of the plow. This increases the material's flowability and ensures that the material is evenly contacted with the bottom of the screening drum.

[0026] As a further optimized technical solution of the present invention, a flow divider is included, which is sleeved on the surface of the agitator shaft and fixedly connected to the surface of the support panel. The flow divider has two figure-eight distributed flow divider slopes.

[0027] It should be understood that by setting up a diversion hood, the material conveyed to the screening barrel by the screw conveyor assembly can be diverted first, and the material can fall from the two inner sides at the end of the screening barrel, avoiding direct accumulation and facilitating the dispersion and screening of the incoming material.

[0028] As a further optimized technical solution of the present invention, a connecting component is provided between the agitator shaft and the conveyor shaft, the connecting component comprising:

[0029] A support tube, which is fixedly connected to the surface of the flow divider;

[0030] A movable plate is slidably disposed inside the support tube and fixedly connected to the surface of the agitator shaft, wherein the agitator shaft is slidably inserted into the end of the conveyor shaft;

[0031] A support spring is provided inside the support tube, and its two ends are fixedly connected to the moving plate and the diverter shroud, respectively.

[0032] It should be understood that during the agitation process, as the spiral blades rotate and push the material, there is a buffering process under the action of the supporting spring, which helps to reduce the rigid collision between the material and the spiral blades. This reduces damage to both the spiral blades and the material.

[0033] As a further optimized technical solution of the present invention, a baffle plate is fixedly connected to the tail end of the receiving bucket, the surface of the baffle plate is movably inserted into the tail end of the screening bucket, and a discharge port is opened on the side of the baffle plate.

[0034] It should be understood that by setting up the baffle, the gap between the material receiving bucket and the screening bucket is blocked.

[0035] As a further optimized technical solution of the present invention, the number of stirring blades is five, and an intermittent jacking assembly is provided at the tail end of the stirring shaft, the intermittent jacking assembly comprising:

[0036] Five actuating pins are arranged in a ring array at the tail end of the agitator shaft;

[0037] An actuating block is fixedly installed on the surface of the baffle plate and has an actuating surface.

[0038] It should be understood that during the agitation process, as a single agitator blade passes the bottom surface of the screening barrel, the corresponding actuating pin will move synchronously past the top moving block. When the actuating pin passes the top moving surface, it will be pushed, causing the entire agitator blade to rotate and actively push the material diagonally upwards towards the bottom surface of the screening barrel, further pushing the material and increasing the pushing distance, which is beneficial to increasing the screening area in some areas.

[0039] As a further optimized technical solution of the present invention, the bottom surface of the receiving barrel is fixedly connected to the discharge hopper, and the two sides of the top opening of the discharge hopper extend to the two ends of the bottom surface of the receiving barrel.

[0040] It should be understood that by setting up a discharge hopper, the material received in the receiving bucket can be collected and discharged.

[0041] As a further optimized technical solution of the present invention, the rotation drive assembly includes:

[0042] A clearance groove is formed on the top surface of the receiving hopper;

[0043] A linkage gear, which is fixedly sleeved on the surface of the screening barrel;

[0044] A drive motor is fixedly mounted on the top of the support panel. A drive gear is fixedly connected to the output end of the drive motor. The drive gear passes through the clearance groove and meshes with the linkage gear.

[0045] It should be understood that by starting the drive motor, the drive motor drives the drive gear to rotate, the drive gear synchronously transmits to the linkage gear, and the linkage gear synchronously drives the screening barrel to rotate in the second direction.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] In this invention, during the rotation of the screening barrel in the first direction, the stirring shaft drives the stirring blades to rotate in the second direction, pushing the material in the opposite direction to the bottom of the screening barrel. This helps to push the material to the side of the screening barrel, which on the one hand facilitates material screening and reduces accumulation, and on the other hand increases the contact area between the material and the screening barrel. Therefore, it is reasonable to make full use of the screening surface of the screening barrel.

[0048] During the propulsion process of the spiral blades, the material being connected is also turned over simultaneously, which helps to increase the fluidity of the material and thus facilitates thorough screening.

[0049] During the agitation process, the spacing between the spiral blades along the axial extension of the agitation shaft provides space for the material to flow between the blades, maintaining smooth flow.

[0050] As the material flows within the space between the spiral blades, the turning plow further agitates the material, causing it to tumble to both sides of the plow. This increases the material's flowability and ensures that the material is evenly contacted with the bottom of the screening drum.

[0051] During the agitation process, as a single agitator blade passes the bottom of the screening barrel, the corresponding actuating pin moves synchronously past the top moving block. As the actuating pin passes the top moving surface, it is pushed, causing the entire agitator blade to rotate and actively push upwards and diagonally towards the bottom of the screening barrel, further pushing the material and increasing the pushing distance, which is beneficial for increasing the screening area in certain areas. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0053] Figure 2 This is a cross-sectional view of the overall structure of the present invention.

[0054] Figure 3 for Figure 2 Enlarged view of section A in the middle.

[0055] Figure 4 This is a cross-sectional view of the support panel of the present invention.

[0056] Figure 5 for Figure 4 Enlarged view of section B.

[0057] Figure 6 This is a schematic diagram of the structure of the flow divider of the present invention.

[0058] Figure 7 This is a schematic diagram of the structure of the spiral conveyor blade of the present invention.

[0059] In the diagram: 1. Conveying motor; 2. Conveying pipe; 3. Feed hopper; 4. Conveying shaft; 5. Spiral conveying blade; 6. Support bracket; 601. Support panel; 7. Screening bucket; 8. Receiving bucket; 9. Agitating shaft; 10. Agitating blade; 11. Connecting rod; 12. Spiral blade; 13. Connecting frame; 1301. Gravity block; 14. Turning plow; 15. Diverting hood; 1601. Diverting slope; 17. Support pipe; 18. Moving plate; 19. Support spring; 20. Baffle plate; 21. Discharge port; 22. Actuating pin; 23. Pushing block; 24. Discharge hopper; 25. Relief groove; 26. Linkage gear; 27. Drive motor; 28. Drive gear; 29. ​​First direction; 30. Second direction. Detailed Implementation

[0060] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0061] like Figures 1 to 7 The continuous conveying impurity separation device shown includes a screw conveyor assembly and a screening assembly. The screw conveyor assembly includes a conveying motor 1, a conveying pipe 2, a conveying shaft 4 disposed within the conveying pipe 2, and screw conveying blades 5 fixed to the surface of the conveying shaft 4. The screening assembly includes:

[0062] The bracket 6 includes a support panel 601, and the delivery pipe 2 is fixedly installed on the surface of the support panel 601.

[0063] The sieve is inclined and includes a screening barrel 7 and a receiving barrel 8 fitted outside the screening barrel 7. The screening barrel 7 is rotatably mounted on the support panel 601 and is connected to the conveying pipe 2 through a through opening on the surface of the support panel 601. The receiving barrel 8 is fixedly mounted on the support panel 601.

[0064] A rotary drive assembly is used to drive the screening drum 7 to rotate;

[0065] The agitation assembly includes an agitation shaft 9 connected to and rotating synchronously with the conveying shaft 4, and multiple agitation blades 10 fixedly connected to the surface of the agitation shaft 9. During the agitation process, the agitation blades 10 push the material accumulated on the bottom surface of the screening barrel 7 toward the side of the screening barrel 7, dispersing the accumulated material toward the side of the screening barrel 7 and increasing the contact opportunity between the material and other parts of the screening barrel 7.

[0066] Specifically, the conveyor motor 1 is fixedly installed at the end of the conveyor pipe 2, the output end of the conveyor motor 1 is fixedly connected to the end of the conveyor shaft 4, and the top end of the conveyor pipe 2 is fixedly connected to the feed hopper 3.

[0067] It should be understood that in the prior art, during the process of barrel-type powder screening, the material will accumulate to the bottom of the barrel, which is not conducive to the lower arc-shaped surface of the screening barrel 7 being in full contact with the material. The lower half of the arc-shaped screening surface of the screening barrel 7 is idle, which is not conducive to the full utilization of the surface of the screening barrel 7.

[0068] This embodiment of the present invention can solve the above problems, and the specific embodiment is as follows:

[0069] During the screening process, the screw conveyor assembly will transport the material added through the feed hopper 3. During the conveying process, the conveyor motor 1 will synchronously drive the conveyor shaft 4, the screw conveyor blade 5 and the stirring shaft 9 to rotate synchronously in the first direction 29. At the same time, the rotary drive assembly is started, and the rotary drive assembly drives the screening barrel 7 to rotate in the second direction 30. The first direction 29 and the second direction 30 are opposite. After the material enters the screening barrel 7, it slides along the bottom surface of the inner wall of the screening barrel 7. During the sliding process, the material will be screened.

[0070] It should be noted that the screening barrel 7 rotates in the second direction 30°. During the rotation, the screening barrel 7 will continuously change its surface to avoid accumulation and blockage. In addition, during the rotation, under the action of friction, the wall of the screening barrel 7 will drive the material, realize the shaking of the material, which is conducive to the flow of the material and thus facilitates screening.

[0071] As the screening barrel 7 rotates in the first direction 29, the stirring shaft 9 drives the stirring blade 10 to rotate in the second direction 30, pushing the material in the opposite direction to the bottom of the screening barrel 7. This helps to push the material to the side of the screening barrel 7, which is beneficial for screening the material and reducing accumulation. On the other hand, it can increase the contact area between the material and the screening barrel 7, so there is reason to make full use of the screening surface of the screening barrel 7.

[0072] As a further optimized embodiment of the present invention, the stirring blade 10 specifically includes:

[0073] Connecting rod 11 is fixedly sleeved on the surface of stirring shaft 9;

[0074] The spiral blade 12 is fixedly connected to the end of the connecting rod 11 and contacts the inner wall of the screening barrel 7.

[0075] It should be understood that during the stirring process, the spiral blades 12 will move along the inner wall of the screening barrel 7. When moving through the bottom of the screening barrel 7, the spiral blades 12 will, on the one hand, carry some of the accumulated material to the side of the screening barrel 7, and on the other hand, the spiral push of the spiral blades 12 will push the material in the upward direction of the screening barrel 7, that is, in the opposite direction of the normal flow of the material, so that some material is screened twice in a local position, which is beneficial to fully screen the material in the local position.

[0076] It should be further explained that during the process of the spiral blade 12 pushing, the docked material is also turned over simultaneously, which helps to increase the fluidity of the material and thus facilitates the full screening of the material.

[0077] As a further optimized embodiment of the present invention, the connecting rods 11 of the plurality of stirring blades 10 are spirally distributed with the stirring shaft 9 as the axis, and there is a gap between adjacent spiral blades 12 in the axial extension direction of the stirring shaft 9.

[0078] It should be understood that during the agitation process, there is a gap between the spiral blades 12 in the direction of the extension of the axis of the agitation shaft 9, which is conducive to the material having a flow space between the spiral blades 12 and maintaining smooth flow.

[0079] As a further optimized embodiment of the present invention, it also includes:

[0080] Multiple connecting frames 13 are located between adjacent spiral blades 12, and the connecting frames 13 are rotatably connected to the surface of the stirring shaft 9;

[0081] Multiple material turning plows 14 are fixedly connected to the ends of the connecting frame 13.

[0082] It should be further explained that a gravity block 1301 is fixedly connected to the surface of the connecting frame 13 to increase the downward tendency force of the entire turning plow 14.

[0083] During the flow of material in the space between the spiral blades 12, the turning plow 14 will further turn the material, causing the material to turn to both sides of the turning plow 14. On the one hand, this helps to increase the fluidity of the material, and on the other hand, it helps to turn the material to both sides and make it evenly contact the bottom surface of the screening barrel 7.

[0084] As a further optimized embodiment of the present invention, a flow divider 15 is included. The flow divider 15 is sleeved on the surface of the agitator shaft 9 and fixedly connected to the surface of the support panel 601. The flow divider 15 has two figure-eight distributed flow divider slopes 1601.

[0085] It should be understood that by setting the diversion hood 15, the material conveyed to the screening barrel 7 by the screw conveyor assembly can be diverted first, and the material can fall from the two inner sides of the end of the screening barrel 7, avoiding direct accumulation and facilitating the dispersion and screening of the incoming material.

[0086] As a further optimized embodiment of the present invention, a connecting component is provided between the agitator shaft 9 and the conveyor shaft 4, the connecting component including:

[0087] Support tube 17 is fixedly connected to the surface of the flow divider 15.

[0088] The movable plate 18 is slidably disposed inside the support tube 17 and fixedly connected to the surface of the stirring shaft 9. The stirring shaft 9 is slidably inserted into the end of the conveying shaft 4.

[0089] A support spring 19 is installed inside the support tube 17, and its two ends are fixedly connected to the movable plate 18 and the diverter shroud 15, respectively.

[0090] It should be understood that during the agitation process, as the spiral blade 12 rotates and pushes the material, there is a buffering process under the action of the support spring 19, which helps to reduce the rigid collision of the material with the spiral blade 12. On the one hand, it reduces the damage to the spiral blade 12, and on the other hand, it also reduces the collision damage to the material.

[0091] As a further optimized embodiment of the present invention, a baffle plate 20 is fixedly connected to the tail end of the receiving bucket 8, the surface of the baffle plate 20 is movably inserted into the tail end of the screening bucket 7, and a discharge port 21 is opened on the side of the baffle plate 20.

[0092] It should be understood that by setting up the baffle plate 20, the gap between the material receiving bucket 8 and the screening bucket 7 is blocked.

[0093] As a further optimized embodiment of the present invention, the number of stirring blades 10 is five, and an intermittent agitation assembly is provided at the tail end of the stirring shaft 9. The intermittent agitation assembly includes:

[0094] Five toggle pins 22 are arranged in a ring array at the tail end of the agitator shaft 9;

[0095] Actuating block 23 is fixedly installed on the surface of the baffle plate 20 and has an actuating surface.

[0096] It should be understood that during the stirring process, when a single stirring blade 10 passes the bottom surface of the screening barrel 7, the corresponding actuating pin 22 will move synchronously past the top moving block 23. When the actuating pin 22 passes the top moving surface, it will be pushed, causing the entire stirring blade 10 to rotate while actively pushing the material upwards and diagonally towards the bottom surface of the screening barrel 7, further pushing the material and increasing the pushing distance, which is beneficial to increasing the area of ​​local screening.

[0097] As a further optimized embodiment of the present invention, the bottom surface of the receiving bucket 8 is fixedly connected to the discharge hopper 24, and the two sides of the top opening of the discharge hopper 24 extend to the two ends of the bottom surface of the receiving bucket 8 respectively.

[0098] It should be understood that by setting up the discharge hopper 24, the material received in the receiving bucket 8 can be collected and discharged.

[0099] As a further optimized embodiment of the present invention, the rotation drive assembly includes:

[0100] The clearance groove 25 is provided on the top surface of the receiving bucket 8;

[0101] Linkage gear 26 is fixedly sleeved on the surface of screening barrel 7;

[0102] The drive motor 27 is fixedly installed on the top of the support panel 601. The output end of the drive motor 27 is fixedly connected to the drive gear 28, which passes through the relief groove 25 and meshes with the linkage gear 26.

[0103] It should be understood that by starting the drive motor 27, the drive motor 27 drives the drive gear 28 to rotate, the drive gear 28 synchronously transmits the linkage gear 26, and the linkage gear 26 synchronously drives the screening barrel 7 to rotate in the second direction 30.

[0104] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A continuous feeding impurity separation device, comprising a screw conveying assembly and a screening assembly, the screw conveying assembly comprising a conveying motor (1), a conveying pipe (2), a conveying shaft (4) arranged in the conveying pipe (2), and screw conveying blades (5) fixed on the surface of the conveying shaft (4), characterized in that: The screening assembly comprises a support frame (6) including a support panel (601), and the conveying pipe (2) is fixedly installed on the surface of the support panel (601); The screening assembly further comprises a screening barrel (7) and a receiving barrel (8) arranged outside the screening barrel (7), the screening barrel (7) is rotatably arranged on the support panel (601) and is communicated with the conveying pipe (2) through an opening formed on the surface of the support panel (601), and the receiving barrel (8) is fixedly installed on the support panel (601); A rotating driving assembly is arranged for driving the screening barrel (7) to rotate; The stirring assembly comprises a stirring shaft (9) connected with the conveying shaft (4) and rotating synchronously with the conveying shaft (4), and a plurality of stirring blades (10) fixedly connected to the surface of the stirring shaft (9), during the stirring process, the stirring blades (10) push the materials accumulated on the bottom of the screening barrel (7) to the side of the screening barrel (7), thereby dispersing the accumulated materials to the side of the screening barrel (7) and increasing the contact opportunities between the materials and other positions of the screening barrel (7); The stirring blade (10) comprises a connecting rod (11) fixedly sleeved on the surface of the stirring shaft (9); A spiral blade (12) fixedly connected to the end of the connecting rod (11) and in contact with the inner wall of the screening barrel (7); The connecting rods (11) of the plurality of stirring blades (10) are spirally distributed about the stirring shaft (9), and the adjacent spiral blades (12) have a spacing in the axial extension direction of the stirring shaft (9); A plurality of connecting frames (13) are respectively arranged between the adjacent spiral blades (12) and rotatably connected to the surface of the stirring shaft (9); A plurality of turning plows (14) are respectively fixedly connected to the ends of the connecting frames (13); The tail end of the receiving barrel (8) is fixedly connected with a shielding plate (20), the surface of the shielding plate (20) is movably inserted into the tail end of the screening barrel (7), and a discharging port (21) is formed in the side surface of the shielding plate (20); The number of the stirring blades (10) is five, the tail end of the stirring shaft (9) is provided with an intermittent jacking assembly, the intermittent jacking assembly comprises five jacking pins (22) arranged in an annular array at the tail end of the stirring shaft (9); A jacking block (23) is fixedly installed on the surface of the shielding plate (20) and has a jacking surface.

2. A continuous feed impurity separation device according to claim 1, wherein: The stirring assembly further comprises a flow distribution cover (15) sleeved on the surface of the stirring shaft (9) and fixedly connected to the surface of the support panel (601), the flow distribution cover (15) has two eight-shaped distribution flow distribution slopes (1601).

3. A continuous feed impurity separation device according to claim 2, wherein: The stirring shaft (9) and the conveying shaft (4) are provided with a connecting assembly, which comprises a support pipe (17) fixedly connected to the surface of the flow distribution cover (15); A moving plate (18) is slidably arranged in the support pipe (17) and fixedly connected to the surface of the stirring shaft (9), which is slidably inserted into the end of the conveying shaft (4); Support springs (19) are arranged in the support pipe (17) and fixedly connected to the moving plate (18) and the flow distribution cover (15) at both ends.

4. A continuous feed impurity separation device according to claim 1, wherein: The bottom surface of the receiving barrel (8) is fixedly connected to a discharge hopper (24), and the two side edges of the top opening of the discharge hopper (24) extend to the two end positions of the bottom surface of the receiving barrel (8).

5. A continuous feed impurity separation device according to claim 1, wherein: The rotating drive assembly comprises a clearance slot (25) formed in the top surface of the receiving barrel (8); A linkage gear (26) is fixedly sleeved on the surface of the screening barrel (7); A drive motor (27) is fixedly installed on the top end of the support panel (601), and the output end of the drive motor (27) is fixedly connected with a drive gear (28), which is engaged with the linkage gear (26) through the clearance slot (25).

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