Powdery raw material screening equipment for charcoal production

Abstract

The present invention relates to the technical field of screening charcoal raw materials, and particularly relates to a screening device for powdery raw materials used in charcoal production, which includes an outer box cylinder and a fine material inner cylinder. The fine material inner cylinder is coaxially located on the inner ring side of the outer box cylinder. A material-carrying column is rotationally inserted between the outer box cylinder and the fine material inner cylinder. A plurality of material-carrying grooves communicating with the inner ring surface of the material-carrying column are formed on the outer ring surface of the material-carrying column. A filtering structure is slidably inserted into the interior of the material-carrying groove. One side of the filtering structure close to the axis of the outer box cylinder is elastically connected to the inner wall of the material-carrying groove. The present invention can drive the telescopic end of the inner bending rod to disengage from the clamping groove plate after the powdery raw materials on the screening structure gradually decrease. At this time, the material-carrying column can rotate to drive the screening structure in the next material-carrying groove to rotate above the opening of the fine material inner cylinder for screening, and replace the new raw materials to be screened after the powdery raw materials in the raw materials screened by the screening structure are reduced to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of charcoal raw material screening, and more particularly to a screening device for powdery raw materials used in charcoal production. Background Art

[0002] Charcoal is a dark brown or black porous solid fuel remaining after incomplete combustion of wood or woody raw materials or pyrolysis under airtight conditions. Before charcoal production and processing, it is necessary to screen powdery raw materials to select powdery raw materials that meet the requirements.

[0003] Chinese Patent Publication No. CN211100077U discloses a screening device for powdery raw materials used in mechanism charcoal production, including a chassis. Support legs are fixedly connected to both sides near the bottom of the chassis. A U-shaped groove is provided inside the chassis. A feed hopper is inserted into the top of the chassis near the right side, and the bottom of the feed hopper extends into the inner cavity of the U-shaped groove. Through the arrangement of the stirring brush, when the powdery raw materials enter the U-shaped groove, they can be rotated by the stirring brush to stir the raw materials, accelerating the filtration of the raw materials. At the same time, it can effectively prevent the raw materials from blocking the filter screen. The above related technology has the following defects: as the raw material screening time increases, the amount of powdery raw materials contained in the raw materials becomes less and less. However, the existing screening device cannot detect in time whether the powdery raw materials are screened cleanly during screening, nor can it replace the new raw materials to be screened in time. Therefore, a screening device for powdery raw materials used in charcoal production is proposed. Summary of the Invention

[0004] In order to ensure that when there is less pulverized raw material inside the raw materials during screening, new raw materials can be replaced in time for screening, the present invention provides a screening device for powdery raw materials used in charcoal production.

[0005] A screening device for powdery raw materials used in charcoal production provided by the present invention adopts the following technical solution: It includes an outer cylindrical barrel and an inner cylindrical barrel for fine materials. The inner cylindrical barrel for fine materials is coaxially located on the inner ring side of the outer cylindrical barrel. A material-carrying column is rotatably inserted between the outer cylindrical barrel and the inner cylindrical barrel for fine materials. A plurality of material-carrying grooves communicating with the inner ring surface of the material-carrying column are formed on the outer ring surface of the material-carrying column. A filtering structure is slidably inserted into the interior of the material-carrying groove. One side of the filtering structure close to the axis of the outer cylindrical barrel is elastically connected to the inner wall of the material-carrying groove. The left and right ends of the filtering structure respectively slide through the left and right inner walls of the material-carrying groove. An outer-turning barrel is fixed to the right end of the inner cylindrical barrel for fine materials. The left end of the inner cylindrical barrel for fine materials is fixed to the outer cylindrical barrel. One end of the filtering structure located on the right side of the material-carrying column is rotatably sleeved with a movable frame. One end of the movable frame away from the material-carrying column is rotatably sleeved with a height gear. A height tooth plate is arranged on the side of the height gear away from the material-carrying column. The height tooth plate is elastically connected to the material-carrying column. A round rod is fixed to the end of the height tooth plate away from the axis of the material-carrying column. A shaft rod is fixedly inserted at the axis of the height gear. A prism shaft A is slidably inserted into the inner axis of the shaft rod. One end of the shaft rod is rotatably sleeved with a damping cylinder. One side of the damping cylinder close to the material-carrying column is in damping contact with a damping plate. The damping plate is fixed to the movable frame. A bent rod is fixed to one end of the prism shaft A located inside the damping cylinder. Two arc-shaped blocks are fixed to the inner wall of the end of the damping cylinder away from the prism shaft A. The middle position of the arc-shaped block is a convex structure. One end of the prism shaft A located inside the damping cylinder is elastically connected to the shaft rod. A linkage gear is rotatably sleeved at the end of the shaft rod away from the damping cylinder. One end of the linkage gear close to the prism shaft A is a groove-shaped structure that matches. A linkage tooth plate is meshed on the side of the linkage gear close to the axis of the material-carrying column. A strip rod is fixed to the side of the linkage tooth plate away from the linkage gear. The strip rod is elastically connected to the material-carrying column. An inner bent rod is fixed to the end of the strip rod away from the material-carrying column. The other end of the inner bent rod is a telescopic end. The inner bent rod is located on the outer ring side of the outer-turning barrel. A clamping groove plate is fixed to the outer ring surface of the end of the outer-turning barrel away from the material-carrying column. A notch ring plate is fixed to the outer ring surface of the end of the outer-turning barrel away from the material-carrying column. One end of the notch ring plate is fixed to the clamping groove plate. An arc-shaped inclined surface push plate A is fixed to the end of the outer-turning barrel away from the material-carrying column. The inner bent rod is located between the arc-shaped inclined surface push plate A and the material-carrying column. An arc-shaped inclined surface push plate B is fixed to the end of the outer-turning barrel away from the material-carrying column. The round rod is located between the material-carrying column and the arc-shaped inclined surface push plate B. A feeding structure is fixedly communicated with the back of the outer cylindrical barrel. A discharge barrel is fixedly communicated with the bottom of the outer cylindrical barrel.

[0006] Optionally, the upper surface of one end of the inner cylindrical barrel for fine materials located inside the material-carrying column is open. A main shaft is arranged at the axis of the inner cylindrical barrel for fine materials. The two ends of the inner cylindrical barrel for fine materials are rotatably sleeved on the outer surface of the main shaft. One end of the inner cylindrical barrel for fine materials located on the left side of the material-carrying column is bent downward. A spiral feeding plate is fixed to one end of the main shaft located inside the inner cylindrical barrel for fine materials. A motor A is fixed to the left end of the inner cylindrical barrel for fine materials. The output end of the motor A is fixed to the main shaft.

[0007] Optionally, one end of the strip column located on the right side of the outer box cylinder is fixedly sleeved with a driven gear, the outer ring surface of the driven gear is engaged with a driving gear, a motor B is fixed on the outer ring surface of the outer box cylinder, one end of the driving gear close to the motor B is coaxially fixed with a claw wheel, the outer surface of the claw wheel is rotatably sleeved with an outer disc, the outer ring surface of the claw wheel is engaged with a claw block, the claw block is elastically connected to the inner ring surface of the outer disc, and the outer disc is fixed to the output end of the motor B.

[0008] Optionally, the filtering structure includes a filter plate and an inner groove frame. One side of the filter plate away from the strip column is fixed to the inner groove frame. Three parallel shafts are arranged inside the inner groove frame. The inner groove frame is rotatably sleeved at both ends of the parallel shafts. A plurality of material pushing plates are fixed to the outer ring surface of one end of the parallel shafts located inside the inner groove frame. A cavity is formed at the right end of the inner groove frame. One end of the three parallel shafts located inside the cavity is driven by a conveyor belt. Pressing wheels are arranged between every two adjacent parallel shafts, and the pressing wheels are in contact with the upper surface of the conveyor belt. The pressing wheels are rotatably connected to the inner groove frame. Both ends of the middle parallel shaft among the three parallel shafts respectively slide through the left and right inner walls of the strip groove. The filter plate and the inner groove frame are both slidably inserted into the strip groove. One side of the filter plate close to the axis of the strip column is elastically connected to the inner wall of the strip groove. The movable frame is rotatably connected to the adjacent parallel shaft.

[0009] Optionally, a driven bevel gear A is rotatably sleeved at the right end of the parallel shaft connected to the movable frame. A driving bevel gear is arranged on the right side of the driven bevel gear A. The driving bevel gear is rotatably connected to the adjacent movable frame. A prism shaft B slidably penetrates through one side of the driving bevel gear away from the axis of the strip column. One end of the prism shaft B away from the axis of the strip column is rotatably connected to the strip column. A driven bevel gear B is fixedly sleeved at one end of the prism shaft B away from the axis of the strip column. A bevel gear ring is arranged on the right side of the strip column. The driven bevel gear B is engaged with the bevel gear ring. The bevel gear ring is fixed to the right end of the main shaft.

[0010] Optionally, both ends of the arc-shaped inclined surface push plate A and the arc-shaped inclined surface push plate B are arc-shaped. The distance between the front arc of the arc-shaped inclined surface push plate A and the arc-shaped inclined surface push plate B and the strip column is less than the distance between the rear arc of the arc-shaped inclined surface push plate A and the arc-shaped inclined surface push plate B and the strip column. The arc-shaped ends of the arc-shaped inclined surface push plate A and the arc-shaped inclined surface push plate B are coaxially arranged with the strip column.

[0011] Optionally, both the parallel shafts and the inside of the blanking plate are cavity-shaped. The blanking plate communicates with the parallel shafts. An air vent plate is arranged inside the cavity. Each parallel shaft is rotatably inserted into the inside of the adjacent air vent plate. The parallel shaft communicates with the inside of the air vent plate. A gas supply structure is arranged on the left side of the strip column. A torsion ring is rotatably inserted into the right side surface of the gas supply structure. The left end of the middle parallel shaft among the three parallel shafts is rotatably sleeved with a telescopic ventilation pipe. The other end of the telescopic ventilation pipe is fixedly communicated with the left side surface of the torsion ring. A plurality of blanking plates connected to the same parallel shaft are spirally and equidistantly distributed on the outer surface of the parallel shaft. The outer surface of the blanking plate is air-permeable.

[0012] Optionally, a damping opening frame is slidably sleeved on the outer surface of the strip rod in a damping manner, and the damping opening frame is fixed to the strip column.

[0013] Optionally, the feeding structure includes a feeding cylinder. The feeding cylinder is fixedly communicated with the inside of the outer cylinder. A bent baffle is slidably penetrated through the front surface of the feeding cylinder. Both the upper and lower ends of the bent baffle are bent backward. The upper end of the bent baffle is in front of the lower end of the bent baffle. A blanking groove is opened on the inner bottom wall of the bent baffle. A power telescopic rod is fixed to the right side surface of the feeding cylinder. The telescopic end of the power telescopic rod is fixed to the bent baffle.

[0014] In summary, the present invention includes the following beneficial technical effects:

[0015] In the present invention, by providing a height gear, a height tooth plate, a linkage gear, an inner bent rod, and a card slot plate, during the screening process, as the screening of the powdery raw materials progresses, the weight borne by the screening structure gradually decreases, driving the movable frame and the height gear to move upward. The arc-shaped inclined surface push plate B pushes the uppermost round rod to make the corresponding height tooth plate contact the height gear. When the height gear moves upward, it drives the shaft rod and the prism shaft A to move upward. The damping plate applies resistance to the rotation of the damping cylinder. The relative rotation of the damping cylinder and the shaft rod drives the bent rod to move onto the arc-shaped block, pushing the prism shaft A into the linkage gear. The linkage gear drives the strip rod to elastically approach the strip column by meshing with the linkage tooth plate, inserting the inner bent rod into the groove in the card slot plate. At this time, the strip column cannot rotate. When the powdery raw materials on the screening structure gradually decrease, the screening structure gradually stops moving upward. The strip rod gradually moves away from the strip column under the elastic action, driving the telescopic end of the inner bent rod to disengage from the card slot plate. At this time, the strip column can rotate to drive the screening structure in the next strip groove to rotate to the opening of the fine material inner cylinder for screening. After the powdery raw materials in the raw materials screened by the screening structure are reduced to a certain extent, new raw materials to be screened are replaced.

[0016] In the present invention, by providing an arc-shaped inclined push plate A and a notched ring plate, when the strip column rotates, it drives the strip groove connected to the feeding structure to rotate upward, drives the inner bent rod to rotate synchronously. The inner bent rod first contacts the farther end of the arc-shaped inclined push plate A and the strip column, and then the inner bent rod gradually pushes the strip rod closer to the strip column by sliding on the left side surface of the arc-shaped inclined push plate A. The telescopic end of the inner bent rod contracts and then slides on the right side surface of the notched ring plate. When the corresponding screening structure rotates to directly above the opening of the fine material inner cylinder, the telescopic end of the inner bent rod simultaneously inserts into the groove of the clamping plate, so that the strip column cannot continue to rotate, and the screening structure can screen stably.

[0017] In the present invention, by providing a material pushing plate, parallel shafts and a ventilation plate, the main shaft drives the conical gear ring to rotate and mesh with the driven bevel gear B to make the prism shaft B rotate. When the movable frame moves, it drives the driving bevel gear to slide on the surface of the prism shaft B. The driving bevel gear meshes with the driven bevel gear A to drive the parallel shafts to rotate. The conveyor belt makes the three connected parallel shafts rotate synchronously. The parallel shafts drive the connected material pushing plates to rotate to stir the raw materials above the filter plate. At the same time, the air supply structure fills the connected parallel shafts through the telescopic ventilation pipe. The ventilation plate ventilates the three connected parallel shafts. The material pushing plate sprays out air flow when rotating, so that the raw materials on the filter plate move, increasing the screening of the raw materials on the filter plate.

[0018] In the present invention, by providing a bent partition plate and a feeding chute, the power telescopic rod drives the bent partition plate to move. When the bent partition plate moves to the frontmost position, the lower end of the bent partition plate seals the feeding cylinder, and the upper end of the bent partition plate disengages from sealing the feeding cylinder. The raw materials in the feeding cylinder move between the upper and lower ends of the bent partition plate. Then when the bent partition plate moves to the rearmost position, the upper end of the bent partition plate seals the feeding cylinder. The feeding chute is communicated with the feeding cylinder. The raw materials between the upper and lower ends of the bent partition plate can fall into the upper part of the corresponding strip groove on the filter plate through the feeding chute. When the power telescopic rod reciprocates, it can drive the same amount of raw materials to fall into the corresponding strip groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structure schematic diagram in the embodiment of the present invention;

[0020] Figure 2 is the structure schematic diagram of the connection between the bent partition plate and the feeding cylinder in the embodiment of the present invention;

[0021] Figure 3 is the internal structure schematic diagram of the outer box cylinder in the embodiment of the present invention;

[0022] Figure 4 is the structure schematic diagram of the connection between the clamping tooth block and the clamping tooth wheel in the embodiment of the present invention;

[0023] Figure 5 is the structure schematic diagram of the connection between the main shaft and the spiral feeding plate in the embodiment of the present invention;

[0024] Figure 6 It is a schematic structural diagram of the telescopic ventilation pipe connected to the parallel shaft in the embodiment of the present invention;

[0025] Figure 7 It is a schematic structural diagram of the ventilation plate connected to the parallel shaft in the embodiment of the present invention;

[0026] Figure 8 It is a schematic structural diagram of the clamping groove plate connected to the notch ring plate in the embodiment of the present invention;

[0027] Figure 9 It is a schematic structural diagram of the arc surface block connected to the damping cylinder in the embodiment of the present invention.

[0028] Reference numerals: 1. Outer box cylinder; 2. Fine material inner cylinder; 3. Belt column; 4. Belt groove; 5. Filter structure; 51. Filter plate; 52. Inner groove frame; 53. Parallel shaft; 531. Driven bevel gear A; 532. Driving bevel gear; 533. Prismatic shaft B; 534. Bevel gear ring; 535. Driven bevel gear B; 54. Pushing plate; 55. Cavity; 551. Ventilation plate; 552. Air supply structure; 553. Telescopic ventilation pipe; 554. Twisting ring; 56. Pressing wheel; 57. Conveyor belt; 6. Outer turning cylinder; 7. Movable frame; 8. Feeding structure; 81. Feeding cylinder; 82. Bent baffle; 83. Feeding chute; 84. Power telescopic rod; 9. Height gear; 10. Height tooth plate; 11. Shaft rod; 12. Damping cylinder; 13. Damping plate; 14. Prismatic shaft A; 15. Arc surface block; 16. Bending rod; 17. Linkage gear; 18. Linkage tooth plate; 19. Strip rod; 191. Damping opening frame; 20. Inner bending rod; 21. Clamping groove plate; 22. Notch ring plate; 23. Arc-shaped inclined surface pushing plate A; 24. Arc-shaped inclined surface pushing plate B; 25. Round rod; 26. Spiral feeding plate; 27. Motor A; 28. Main shaft; 29. Driven gear; 30. Driving gear; 31. Motor B; 32. Clamping tooth wheel; 33. Clamping tooth block; 34. Outer disc; 35. Discharge cylinder. Detailed implementation manners

[0029] The following is a further detailed description of the present invention in conjunction with the attached Figures 1-9 drawings.

[0030] The embodiment of the present invention discloses a screening device for powdery raw materials used in charcoal production. As Figure 1As shown in the figure, it includes an outer box cylinder 1 and a fine material inner cylinder 2. The fine material inner cylinder 2 is coaxially located on the inner ring side of the outer box cylinder 1. A material-carrying column 3 is rotatably inserted between the outer box cylinder 1 and the fine material inner cylinder 2. A plurality of material-carrying grooves 4 communicating with the inner ring surface of the material-carrying column 3 are formed on the outer ring surface of the material-carrying column 3. A filtering structure 5 is slidably inserted inside the material-carrying groove 4. One side of the filtering structure 5 close to the axis of the outer box cylinder 1 is elastically connected to the inner wall of the material-carrying groove 4, having a tendency to push the filtering structure 5 to move upward. The left and right ends of the filtering structure 5 respectively slide through the left and right inner walls of the material-carrying groove 4. The upper surface of one end of the fine material inner cylinder 2 located inside the material-carrying column 3 is open. A main shaft 28 is provided at the axis of the fine material inner cylinder 2. The two ends of the fine material inner cylinder 2 are rotatably sleeved on the outer surface of the main shaft 28. One end of the fine material inner cylinder 2 located on the left side of the material-carrying column 3 is bent downward. A spiral feeding plate 26 is fixed to one end of the main shaft 28 located inside the fine material inner cylinder 2. A motor A 27 is fixed to the left end of the fine material inner cylinder 2. The output end of the motor A 27 is fixed to the main shaft 28. When the main shaft 28 rotates, it drives the spiral feeding plate 26 to rotate, which can assist in pushing the raw materials to move inside the fine material inner cylinder 2.

[0031] One end of the material-carrying column 3 located on the right side of the outer box cylinder 1 is fixedly sleeved with a driven gear 29. The outer ring surface of the driven gear 29 meshes with a driving gear 30. A motor B 31 is fixed to the outer ring surface of the outer box cylinder 1. One end of the driving gear 30 close to the motor B 31 is coaxially fixed with a jaw gear 32. The outer surface of the jaw gear 32 is rotatably sleeved with an outer disc 34. The outer ring surface of the jaw gear 32 meshes with a jaw block 33. The jaw block 33 is elastically connected to the inner ring surface of the outer disc 34. The outer disc 34 is fixed to the output end of the motor B 31. The motor B 31 drives the jaw block 33 to rotate through the outer disc 34. The elastically connected jaw block 33 has a tendency to mesh with the jaw gear 32. The driving gear 30 drives the material-carrying column 3 to rotate by meshing with the driven gear 29. When the material-carrying column 3 cannot rotate, the jaw block 33 elastically approaches the inner ring surface of the outer disc 34, so that the jaw block 33 can be misaligned with the jaw gear 32.

[0032] The right end of the fine material inner cylinder 2 is fixed with an outward-turned cylinder 6. The left end of the fine material inner cylinder 2 is fixed to the outer box cylinder 1. One end of the filtering structure 5 located on the right side of the strip material column 3 is rotatably sleeved with a movable frame 7. The filtering structure 5 includes a filter plate 51 and an inner groove frame 52. One side of the filter plate 51 away from the strip material column 3 is fixed to the inner groove frame 52. Three parallel shafts 53 are arranged inside the inner groove frame 52. The two ends of the inner groove frame 52 are rotatably sleeved on the parallel shafts 53. A plurality of material pushing plates 54 are fixed to the outer ring surface of one end of the parallel shaft 53 located inside the inner groove frame 52. When the parallel shaft 53 drives the material pushing plate 54 to rotate, it can drive the raw materials on the filter plate 51 to rotate, facilitating the powdery raw materials on the filter plate 51 to fall. A cavity 55 is opened at the right end of the inner groove frame 52. One end of the three parallel shafts 53 located inside the cavity 55 is driven by a conveyor belt 57. A pressing wheel 56 is arranged between every two adjacent parallel shafts 53. The pressing wheel 56 is in contact with the upper surface of the conveyor belt 57. The pressing wheel 56 is rotatably connected to the inner groove frame 52. When the pressing wheel 56 rotates the conveyor belt 57, it can stably drive the three parallel shafts 53 to rotate synchronously. The two ends of the middle parallel shaft 53 among the three parallel shafts 53 respectively slide through the left and right inner walls of the strip material groove 4. The filter plate 51 and the inner groove frame 52 are both slidably inserted into the strip material groove 4. One side of the filter plate 51 close to the axis of the strip material column 3 is elastically connected to the inner wall of the strip material groove 4. The movable frame 7 is rotatably connected to the adjacent parallel shaft 53.

[0033] A driven bevel gear A531 is rotatably sleeved on the right end of the parallel shaft 53 connected to the movable frame 7. A driving bevel gear 532 is arranged on the right side of the driven bevel gear A531. The driving bevel gear 532 is rotatably connected to the adjacent movable frame 7. A prism shaft B533 slides through one side of the driving bevel gear 532 away from the axis of the strip material column 3. One end of the prism shaft B533 away from the axis of the strip material column 3 is rotatably connected to the strip material column 3. A driven bevel gear B535 is fixedly sleeved on one end of the prism shaft B533 away from the axis of the strip material column 3. A bevel gear ring 534 is arranged on the right side of the strip material column 3. The driven bevel gear B535 meshes with the bevel gear ring 534. The bevel gear ring 534 is fixed to the right end of the main shaft 28. When the movable frame 7 moves following the filter plate 51, it drives the driving bevel gear 532 to slide on the surface of the prism shaft B533. The bevel gear ring 534 drives the prism shaft B533 and the driving bevel gear 532 to rotate synchronously through meshing with the driven bevel gear B535. The driven bevel gear A531 meshes with the driving bevel gear 532 to drive the connected parallel shaft 53 to rotate.

[0034] Both the inside of the parallel shaft 53 and the inside of the material pushing plate 54 are cavity-shaped. The material pushing plate 54 communicates with the parallel shaft 53. An air vent plate 551 is arranged inside the cavity 55. Each parallel shaft 53 is rotationally inserted into the inside of the adjacent air vent plate 551. The parallel shaft 53 communicates with the inside of the air vent plate 551. A gas supply structure 552 is arranged on the left side of the strip material column 3. A torsion ring 554 is rotationally inserted into the right side surface of the gas supply structure 552. The left end of the middle parallel shaft 53 among the three parallel shafts 53 is rotationally sleeved with a telescopic ventilation pipe 553. The gas supply structure 552 fills air flow into the telescopic ventilation pipe 553. The other end of the telescopic ventilation pipe 553 is fixedly communicated with the left side surface of the torsion ring 554. A plurality of material pushing plates 54 connected to the same parallel shaft 53 are spirally and equidistantly distributed on the outer surface of the parallel shaft 53. The outer surface of the material pushing plate 54 is air-permeable. The gas supply structure 552 fills air into the connected parallel shaft 53 through the telescopic ventilation pipe 553. The air vent plate 551 enables air to be filled into all three connected parallel shafts 53. The air flow filled into the parallel shaft 53 sprays out from the material pushing plate 54. The sprayed air flow and the rotation of the material pushing plate 54 assist the movement of the raw materials, facilitating the separation of the powdered raw materials.

[0035] A height gear 9 is rotationally sleeved at one end of the movable frame 7 away from the strip material column 3. A height toothed plate 10 is arranged on the side of the height gear 9 away from the strip material column 3. The height toothed plate 10 is elastically connected to the strip material column 3. A round rod 25 is fixed at one end of the height toothed plate 10 away from the axis of the strip material column 3. As the powdered raw materials on the filter plate 51 fall off, the weight of the raw materials above the filter plate 51 gradually decreases. The elastically connected filter plate 51 gradually drives the movable frame 7 and the height gear 9 to move upward through the parallel shaft 53. A shaft rod 11 is fixedly inserted at the axis of the height gear 9. A prism shaft A14 is slidably inserted into the inner axis of the shaft rod 11. When the height gear 9 moves upward, it drives the shaft rod 11 and the prism shaft A14 to rotate synchronously by meshing with the height toothed plate 10. One end of the shaft rod 11 is rotationally sleeved with a damping cylinder 12. The damping cylinder 12 is in damping contact with a damping plate 13 on the side close to the strip material column 3. The damping plate 13 applies resistance to the rotation of the damping cylinder 12. The damping plate 13 is fixed to the movable frame 7. A bent rod 16 is fixed at one end of the prism shaft A14 located inside the damping cylinder 12. Two arc-shaped blocks 15 are fixed to the inner wall of the end of the damping cylinder 12 away from the prism shaft A14. The middle position of the arc-shaped block 15 is a convex structure. One end of the prism shaft A14 located inside the damping cylinder 12 is elastically connected to the shaft rod 11. A linkage gear 17 is rotationally sleeved at the end of the shaft rod 11 away from the damping cylinder 12. One end of the linkage gear 17 close to the prism shaft A14 is a groove-shaped structure in cooperation. The relative rotation of the damping cylinder 12 and the shaft rod 11 drives the bent rod 16 to move onto the arc-shaped block 15, pushing the prism shaft A14 into the linkage gear 17.

[0036] One side of the linkage gear 17 close to the axis of the strip column 3 meshes with a linkage tooth plate 18. A strip rod 19 is fixed on the side of the linkage tooth plate 18 away from the linkage gear 17. The strip rod 19 is elastically connected to the strip column 3. The elastically connected strip rod 19 has a tendency to move away from the strip column 3. One end of the strip rod 19 away from the strip column 3 is fixed with an inner bent rod 20. The other end of the inner bent rod 20 is a telescopic end. A damping open frame 191 is slidably sleeved on the outer surface of the strip rod 19 in a damped manner. The damping open frame 191 is fixed to the strip column 3. The damping open frame 191 has the function of slowing down the speed of the strip rod 19 moving away from the strip column 3, preventing the strip column 3 from directly rotating when there is powder raw material that cannot fall from the filter plate 51 in time during screening. The inner bent rod 20 is located on the outer ring side of the outer turning cylinder 6. One end of the outer turning cylinder 6 away from the strip column 3 is fixed with a clamping groove plate 21 on its outer ring surface. One end of the outer turning cylinder 6 away from the strip column 3 is fixed with a notch ring plate 22 on its outer ring surface. One end of the notch ring plate 22 is fixed to the clamping groove plate 21. When the strip rod 19 approaches the strip column 3, the telescopic end of the inner bent rod 20 is inserted into the clamping groove plate 21, so that the strip column 3 cannot rotate while the outer box cylinder 1 rotates. When the height gear 9 stops moving upward, the strip rod 19 gradually drives the inner bent rod 20 to disengage from the clamping groove plate 21 through elastic connection, so that the strip column 3 can rotate.

[0037] One end of the outer turning cylinder 6 away from the strip column 3 is fixed with an arc-shaped inclined surface push plate A23. The inner bent rod 20 is located between the arc-shaped inclined surface push plate A23 and the strip column 3. One end of the outer turning cylinder 6 away from the strip column 3 is fixed with an arc-shaped inclined surface push plate B24. The round rod 25 is located between the strip column 3 and the arc-shaped inclined surface push plate B24. Both ends of the arc-shaped inclined surface push plate A23 and the arc-shaped inclined surface push plate B24 are arc-shaped. The distance between the front arc of the arc-shaped inclined surface push plate A23 and the strip column 3 is less than the distance between the rear arc of the arc-shaped inclined surface push plate A23 and the strip column 3. The arc-shaped inclined surface push plate A23 and the arc-shaped inclined surface push plate B24 are coaxially arranged with the strip column 3. Before the round rod 25 contacts the arc-shaped inclined surface push plate B24, the height tooth plate 10 disengages from the height gear 9. When the round rod 25 moves to the closer end of the arc-shaped inclined surface push plate B24 and the strip column 3, the round rod 25 pushes the height tooth plate 10 to engage with the height gear 9. When the inner bent rod 20 rotates, it first contacts the farther end of the arc-shaped inclined surface push plate A23 and the strip column 3, and then the inner bent rod 20 gradually pushes the strip rod 19 closer to the strip column 3 by sliding on the left side surface of the arc-shaped inclined surface push plate A23. The telescopic end of the inner bent rod 20 contracts and then slides on the right side surface of the notch ring plate 22. When the opening of the inner bent rod 20 coincides with the slot of the clamping groove plate 21, the telescopic end of the inner bent rod 20 is inserted into the groove of the clamping groove plate 21.

[0038] A feeding structure 8 is fixedly connected and communicated with the back surface of the outer cylinder 1, and a discharge cylinder 35 is fixedly connected and communicated with the bottom surface of the outer cylinder 1. The feeding structure 8 includes a feeding cylinder 81, and the feeding cylinder 81 is fixedly connected and communicated with the inside of the outer cylinder 1. A bent baffle 82 slidably penetrates through the front surface of the feeding cylinder 81. The upper and lower ends of the bent baffle 82 are bent backward. The upper end of the bent baffle 82 is in front of the lower end of the bent baffle 82. A feeding groove 83 is formed in the inner bottom wall of the bent baffle 82. A power telescopic rod 84 is fixed to the right side surface of the feeding cylinder 81, and the telescopic end of the power telescopic rod 84 is fixed to the bent baffle 82. When the bent baffle 82 moves to the most forward position, the lower end of the bent baffle 82 seals the feeding cylinder 81, and the upper end of the bent baffle 82 is disengaged from sealing the feeding cylinder 81. The raw materials in the feeding cylinder 81 move between the upper and lower ends of the bent baffle 82. Then when the bent baffle 82 moves to the rearmost position, the upper end of the bent baffle 82 seals the feeding cylinder 81, and the feeding groove 83 is communicated with the feeding cylinder 81. When the bent baffle 82 reciprocates, it can drive the same amount of raw materials to fall into the corresponding material carrying groove 4.

[0039] The working principle is as follows: When the power telescopic rod 84 drives the bending material separating plate 82 to reciprocate, raw materials are added into the connected material carrying groove 4 through the material discharging groove 83. When the material carrying column 3 rotates, it drives the material carrying groove 4 connected to the feeding cylinder 81 to rotate upward, driving the inner bending rod 20 to rotate synchronously. The inner bending rod 20 first contacts the farther end of the arc-shaped inclined surface push plate A23 and the material carrying column 3, and then the inner bending rod 20 gradually pushes the strip rod 19 close to the material carrying column 3 by sliding on the left side surface of the arc-shaped inclined surface push plate A23. The telescopic end of the inner bending rod 20 contracts and then slides on the right side surface of the notch ring plate 22. When the corresponding material carrying groove 4 rotates to directly above the opening of the fine material inner cylinder 2, the telescopic end of the inner bending rod 20 is inserted into the groove of the clamping groove plate 21 at the same time, so that the material carrying column 3 cannot continue to rotate. The parallel shaft 53 drives the connected material dialing plate 54 to rotate to dial the raw materials above the filter plate 51. The air vent plate 551 allows the three connected parallel shafts 53 to ventilate. When the material dialing plate 54 rotates, it sprays out airflows outward, causing the raw materials on the filter plate 51 to move, so that the powdery raw materials fall downward from the filter plate 51. The powdery raw materials fall into the fine material inner cylinder 2 from the opening of the fine material inner cylinder 2. As the screening of the powdery raw materials progresses, the weight borne by the filter plate 51 gradually decreases, driving the movable frame 7 and the height gear 9 to move upward. The arc-shaped inclined surface push plate B24 makes the corresponding height tooth plate 10 contact the height gear 9 by pushing the uppermost round rod 25. When the height gear 9 moves upward, it drives the shaft rod 11 and the prism shaft A14 to move upward. The damping plate 13 applies resistance to the rotation of the damping cylinder 12. The relative rotation of the damping cylinder 12 and the shaft rod 11 drives the bending rod 16 to move onto the arc-shaped block 15, pushing the prism shaft A14 to insert into the linkage gear 17. The linkage gear 17 drives the strip rod 19 to elastically approach the material carrying column 3 by meshing with the linkage tooth plate 18, inserting the inner bending rod 20 into the groove of the clamping groove plate 21. At this time, the material carrying column 3 cannot rotate. When the powdery raw materials on the filter plate 51 gradually decrease, the filter plate 51 gradually stops moving upward. The strip rod 19 gradually moves away from the material carrying column 3 under the elastic action, driving the telescopic end of the inner bending rod 20 to disengage from the clamping groove plate 21. At this time, the material carrying column 3 can rotate to drive the next material carrying groove 4 to rotate to directly above the opening of the fine material inner cylinder 2 for screening. After the powdery raw materials in the raw materials screened by the filter plate 51 are reduced to a certain extent, new raw materials to be screened are replaced.

[0040] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A powdered raw material screening device for charcoal production, comprising an outer box cylinder (1) and a fine material inner cylinder (2), characterized in that: The fine material inner cylinder (2) is coaxially located on the inner ring side of the outer box cylinder (1); a material column (3) is rotatably inserted between the outer box cylinder (1) and the fine material inner cylinder (2); a plurality of material grooves (4) connected to the inner ring surface of the material column (3) are provided on the outer ring surface of the material column (3); a filter structure (5) is slidably inserted inside the material groove (4); a surface of the filter structure (5) close to the axis of the outer box cylinder (1) is elastically connected to the inner wall of the material groove (4); the left and right ends of the filter structure (5) respectively slide through the left and right inner walls of the material groove (4); an outward-turning cylinder (6) is fixed to the right end of the fine material inner cylinder (2); the left end of the fine material inner cylinder (2) is fixed to the outer box cylinder (1); and one end of the filter structure (5) located on the right side of the material column (3) is rotatably sleeved with a movable frame (7) ), a height gear (9) is rotatably sleeved on one end of the movable frame (7) away from the material column (3), a height tooth plate (10) is provided on the side of the height gear (9) away from the material column (3), the height tooth plate (10) is elastically connected to the material column (3), a round rod (25) is fixed on one end of the height tooth plate (10) away from the axis of the material column (3), a shaft rod (11) is fixedly inserted at the axis of the height gear (9), a prism axis A (14) is slidably inserted at the inner axis of the shaft rod (11), a damping cylinder (12) is rotatably sleeved on one end of the shaft rod (11), a damping plate (13) is dampingly contacted on the side of the damping cylinder (12) close to the material column (3), the damping plate (13) is fixed to the movable frame (7), and the prism axis A (14) is located at the damping cylinder (12). A bent rod (16) is fixed at one end of the interior, two arc blocks (15) are fixed to the inner wall of the end of the damping cylinder (12) away from the prism axis A (14), the middle position of the arc block (15) is a convex structure, the end of the prism axis A (14) located inside the damping cylinder (12) is elastically connected to the shaft rod (11), the end of the shaft rod (11) away from the damping cylinder (12) is rotatably sleeved with a linkage gear (17), the end of the linkage gear (17) close to the prism axis A (14) is a matching groove-shaped structure, the side of the linkage gear (17) close to the axis of the material column (3) is meshed with a linkage tooth plate (18), the side of the linkage tooth plate (18) away from the linkage gear (17) is fixed with a bar (19), the bar (19) is elastically connected to the material column (3), the bar An inner bending rod (20) is fixed to the end of the rod (19) away from the material column (3), and the other end of the inner bending rod (20) is a telescopic end. The inner bending rod (20) is located on the outer ring side of the outer turning cylinder (6). A slot plate (21) is fixed to the outer ring surface of the end of the outer turning cylinder (6) away from the material column (3). A notched ring plate (22) is fixed to the outer ring surface of the end of the outer turning cylinder (6) away from the material column (3). One end of the notched ring plate (22) is fixed to the slot plate (21). An arc inclined surface push plate A (23) is fixed to the end of the outer turning cylinder (6) away from the material column (3). The inner bending rod (20) is located between the arc inclined surface push plate A (23) and the material column (3). An arc inclined surface push plate B (24) is fixed to the end of the outer turning cylinder (6) away from the material column (3).The round rod (25) is located between the material carrying column (3) and the arc inclined push plate B (24), the back of the outer box barrel (1) is fixedly connected to the feeding structure (8), and the bottom of the outer box barrel (1) is fixedly connected to the discharge barrel (35).

2. The powdered raw material screening device for charcoal production according to claim 1, characterized in that: The upper surface of one end of the fine material inner cylinder (2) located inside the material column (3) is open, a main shaft (28) is arranged at the axis of the fine material inner cylinder (2), both ends of the fine material inner cylinder (2) are rotatably sleeved on the outer surface of the main shaft (28), one end of the fine material inner cylinder (2) located on the left side of the material column (3) is bent downward, a spiral feeding plate (26) is fixed to one end of the main shaft (28) located inside the fine material inner cylinder (2), and a motor A (27) is fixed to the left end of the fine material inner cylinder (2), and the output end of the motor A (27) is fixed to the main shaft (28).

3. The powdered raw material screening device for charcoal production according to claim 1, characterized in that: The end of the material column (3) located on the right side of the outer box barrel (1) is fixedly sleeved with a driven gear (29), the outer ring surface of the driven gear (29) is meshed with a driving gear (30), the outer ring surface of the outer box barrel (1) is fixed with a motor B (31), the end of the driving gear (30) close to the motor B (31) is coaxially fixed with a tooth wheel (32), the outer surface of the tooth wheel (32) is rotatably sleeved with an outer disk (34), the outer ring surface of the tooth wheel (32) is meshed with a tooth block (33), the tooth block (33) is elastically connected to the inner ring surface of the outer disk (34), and the outer disk (34) is fixed to the output end of the motor B (31).

4. The powdered raw material screening device for charcoal production according to claim 2, characterized in that: The filtering structure (5) comprises a filtering plate (51) and an inner groove frame (52); a side of the filtering plate (51) away from the material column (3) is fixed to the inner groove frame (52); three parallel shafts (53) are arranged on the inner side of the inner groove frame (52); the inner groove frame (52) is rotatably sleeved on both ends of the parallel shafts (53); a plurality of material-selecting plates (54) are fixed on the outer annular surface of one end of the parallel shaft (53) located on the inner side of the inner groove frame (52); a cavity (55) is provided at the right end of the inner groove frame (52); one end of the three parallel shafts (53) located inside the cavity (55) is driven by a conveyor belt (57); and each adjacent two parallel shafts (53) are connected to the inner side of the inner groove frame (52); A clamping wheel (56) is provided between each of the parallel shafts (53), the clamping wheel (56) contacts the upper surface of the conveyor belt (57), and the clamping wheel (56) is rotatably connected to the inner groove frame (52). The two ends of the parallel shaft (53) located in the middle of the three parallel shafts (53) slide through the left and right inner walls of the belt material groove (4) respectively, and the filter plate (51) and the inner groove frame (52) are slidably inserted into the inside of the belt material groove (4). A surface of the filter plate (51) close to the axis of the belt material column (3) is elastically connected to the inner wall of the belt material groove (4), and the movable frame (7) is rotatably connected to the adjacent parallel shaft (53).

5. The powdered raw material screening device for charcoal production according to claim 4, characterized in that: A driven bevel gear A (531) is rotatably sleeved on the right end of a parallel shaft (53) connected to a movable frame (7). A driving bevel gear (532) is arranged on the right side of the driven bevel gear A (531). The driving bevel gear (532) is rotatably connected to the adjacent movable frame (7). A prism shaft B (533) is slidably penetrated through a surface of the driving bevel gear (532) away from the axis of the material column (3). One end of the prism shaft B (533) away from the axis of the material column (3) is rotatably connected to the material column (3). One end of the prism shaft B (533) away from the axis of the material column (3) is fixedly sleeved on the driven bevel gear B (535). A bevel gear ring (534) is arranged on the right side of the material column (3). The driven bevel gear B (535) meshes with the bevel gear ring (534). The bevel gear ring (534) is fixed to the right end of the main shaft (28).

6. The powdered raw material screening device for charcoal production according to claim 1, characterized in that: Both ends of the arc inclined push plate A (23) and the arc inclined push plate B (24) are arc-shaped, the distance between the front end arc of the arc inclined push plate A (23) and the arc inclined push plate B (24) and the material column (3) is smaller than the distance between the rear end arc of the arc inclined push plate A (23) and the arc inclined push plate B (24) and the material column (3), and the arcs at both ends of the arc inclined push plate A (23) and the arc inclined push plate B (24) are coaxially arranged with the material column (3).

7. The powdered raw material screening device for charcoal production according to claim 4, characterized in that: The interiors of the parallel shaft (53) and the material-selecting plate (54) are both in the shape of cavities. The material-selecting plate (54) is in communication with the parallel shaft (53). A ventilation plate (551) is arranged inside the cavity (55). Each parallel shaft (53) is rotatably plugged into the interior of an adjacent ventilation plate (551). The parallel shaft (53) is in communication with the interiors of the ventilation plates (551). An air supply structure (552) is arranged on the left side of the material-carrying column (3). A twist ring (554) is rotatably plugged into the right side of the air supply structure (552). A telescopic ventilation pipe (553) is rotatably sleeved on the left end of the parallel shaft (53) located in the middle of the three parallel shafts (53). The other end of the telescopic ventilation pipe (553) is fixedly connected to the left side of the twist ring (554). A plurality of material-selecting plates (54) connected to the same parallel shaft (53) are spirally distributed at equal distances on the outer surface of the parallel shaft (53). The outer surface of the material-selecting plate (54) is air-permeable.

8. The powdered raw material screening equipment for charcoal production according to claim 1, characterized in that: The outer surface of the bar (19) is sleeved with a damping opening frame (191) in a damping sliding manner, and the damping opening frame (191) is fixed to the material carrying column (3).

9. The powdered raw material screening device for charcoal production according to claim 1, characterized in that: The feeding structure (8) includes a feeding barrel (81), which is fixedly connected to the inside of the outer box barrel (1), and a bent material separator (82) is slidably penetrated through the front of the feeding barrel (81), and the upper and lower ends of the bent material separator (82) are bent backwards, and the upper end of the bent material separator (82) is located in front of the lower end of the bent material separator (82), and the inner bottom wall of the bent material separator (82) is provided with a feeding groove (83), and a power telescopic rod (84) is fixed to the right side of the feeding barrel (81), and the telescopic end of the power telescopic rod (84) is fixed to the bent material separator (82).

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