Powdery raw material screening equipment for charcoal production

Abstract

The invention relates to the technical field of charcoal raw material screening, in particular to charcoal production powdery raw material screening equipment which comprises 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, and a material carrying column is rotationally inserted between the outer box cylinder and the fine material inner cylinder; and a plurality of material carrying grooves communicating with the inner ring face of the material carrying column are formed in the outer ring face of the material carrying column, filtering structures are slidably inserted into the material carrying grooves, and the faces, close to the axis of the outer box cylinder, of the filtering structures are elastically connected with the inner walls of the material carrying grooves. After powder raw materials on the screening structures are gradually reduced, the telescopic ends of the inner bent rods are driven to be separated from the clamping groove plates, and at the moment, the material carrying column can rotate to drive the screening structure in the next material carrying groove to rotate to the position above an opening of the fine material inner barrel for screening; and after the powder raw materials in the raw materials screened by the screening structure are reduced to a certain degree, new to-be-screened raw materials are replaced.

Description

Technical Field

[0001] The invention relates to the technical field of charcoal raw material screening, in particular to a powdered raw material screening device for charcoal production. Background Art

[0002] Charcoal is a dark brown or black porous solid fuel left after incomplete combustion of wood or wood raw materials, or pyrolysis under air-tight conditions. Before charcoal production and processing, the powdered raw materials need to be screened to select powdered raw materials that meet the requirements.

[0003] Chinese patent announcement number CN211100077U discloses a powdered raw material screening device for machine-made charcoal production, including a chassis, the bottom of the chassis is fixedly connected with support legs near both sides, a U-shaped groove is arranged in the chassis, a feed funnel is inserted into the top of the chassis near the right side, and the bottom of the feed funnel extends to the inner cavity of the U-shaped groove, and the powdered raw material can be rotated by the stirring brush after entering the U-shaped groove to stir the raw material, accelerate the filtration of the raw material, and effectively avoid the raw material from clogging the filter screen. The above-mentioned related technology has the following defects: as the raw material screening time increases, the powdered raw material contained in the raw material becomes less and less, and the screening device in the prior art cannot detect whether the powdered raw material is screened clean in time during screening, and cannot replace new raw materials to be screened in time. Therefore, a powdered raw material screening device for charcoal production is proposed. Summary of the invention

[0004] In order to ensure that when the crushed raw material in the raw material being screened is less, new raw material can be replaced in time for screening, the present invention provides a powdered raw material screening device for charcoal production.

[0005] The present invention provides a powdered raw material screening device for charcoal production, which adopts the following technical scheme: it comprises an outer box barrel and a fine material inner barrel, the fine material inner barrel is coaxially located on the inner ring side of the outer box barrel, a material column is rotatably inserted between the outer box barrel and the fine material inner barrel, the outer ring surface of the material column is provided with a plurality of material grooves connected with the inner ring surface of the material column, a filtering structure is slidably inserted inside the material groove, a side of the filtering structure close to the axis of the outer box barrel is elastically connected to the inner wall of the material groove, the left and right ends of the filtering structure slide through the left and right inner walls of the material groove respectively, an outward-turning cylinder is fixed on the right end of the fine material inner barrel, and the fine material inner barrel is provided with a filter structure. The left end of the cylinder is fixed to the outer box cylinder, and the filtering structure is located at one end on the right side of the material column and is rotatably sleeved with a movable frame, and the end of the movable frame away from the material column is rotatably sleeved with a height gear, and a height gear is arranged on the side away from the material column. The height gear is elastically connected to the material column, and a round rod is fixed to the end of the height gear plate away from the axis of the material column, and a shaft rod is fixedly inserted at the axis of the height gear, and a prism A is slidably inserted at the inner axis of the shaft rod, and a damping cylinder is rotatably sleeved at one end of the shaft rod, and a damping plate is in damping contact with the side of the damping cylinder close to the material column, and the damping plate is fixed to the movable frame, and the prism A is located at the damping A bending rod is fixed at one end of the cylinder, and two arc blocks are fixed on the inner wall of the end of the damping cylinder away from the prism axis A. The middle position of the arc block is a convex structure. The end of the prism axis A located inside the damping cylinder is elastically connected to the shaft rod. The end of the shaft rod away from the damping cylinder is rotatably sleeved with a linkage gear. The end of the linkage gear close to the prism axis A is a matching groove-shaped structure. A linkage tooth plate is meshed on the side of the linkage gear close to the axis of the material belt column. A bar is fixed on the side of the linkage tooth plate away from the linkage gear. The bar is elastically connected to the material belt column. An inner bending rod is fixed on the end of the bar away from the material belt column. The other end of the inner bending rod One end is a telescopic end, the inner bending rod is located at the outer ring side of the outer turning cylinder, a slot plate is fixed on the outer ring surface of the end of the outer turning cylinder away from the material column, a notch ring plate is fixed on the outer ring surface of the end of the outer turning cylinder away from the material column, one end of the notch ring plate is fixed to the slot plate, an arc slope push plate A is fixed on the end of the outer turning cylinder away from the material column, the inner bending rod is located between the arc slope push plate A and the material column, an arc slope push plate B is fixed on the end of the outer turning cylinder away from the material column, the round rod is located between the material column and the arc slope push plate B, the back of the outer box cylinder is fixedly connected to the feeding structure, and the bottom of the outer box cylinder is fixedly connected to the discharge cylinder.

[0006] Optionally, the upper surface of one end of the fine material inner cylinder located inside the material column is open, a main shaft is arranged at the axis of the fine material inner cylinder, both ends of the fine material inner cylinder are rotatably sleeved on the outer surface of the main shaft, one end of the fine material inner cylinder located on the left side of the material column is bent downward, a spiral feeding plate is fixed on one end of the main shaft located inside the fine material inner cylinder, and a motor A is fixed to the left end of the fine material inner cylinder, and the output end of the motor A is fixed to the main shaft.

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

[0008] Optionally, the filtering structure includes a filter plate and an inner groove frame, wherein a side of the filter plate away from the material column is fixed to the inner groove frame, and three parallel shafts are provided on the inner side of the inner groove frame, and the two ends of the parallel shafts are rotatably sleeved, and a plurality of material stripping plates are fixed on the outer ring surface of one end of the parallel shaft located on the inner side of the inner groove frame, and a cavity is opened at the right end of the inner groove frame, and one end of the three parallel shafts located inside the cavity is driven by a conveyor belt, and a pressure wheel is provided between each adjacent two parallel shafts, and the pressure wheel contacts the upper surface of the conveyor belt, and the pressure wheel is rotatably connected to the inner groove frame, and the two ends of the parallel shaft located in the middle of the three parallel shafts slide through the left and right inner walls of the material trough respectively, and the filter plate and the inner groove frame are both slidably inserted into the interior of the material trough, and the side of the filter plate close to the axis of the material column is elastically connected to the inner wall of the material trough, and the movable frame is rotatably connected to the adjacent parallel shafts.

[0009] Optionally, the right end of the parallel shaft connected to the movable frame is rotatably sleeved with a driven bevel gear A, and 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, and a prism shaft B slides through the side of the driving bevel gear away from the axis of the material column. The end of the prism shaft B away from the axis of the material column is rotatably connected to the material column, and the end of the prism shaft B away from the axis of the material column is fixedly sleeved with the driven bevel gear B, and a bevel gear ring is arranged on the right side of the material column, the driven bevel gear B is meshed with the bevel gear ring, and the bevel gear ring is fixed to the right end of the main shaft.

[0010] Optionally, both ends of the arc inclined push plate A and the arc inclined push plate B are arc-shaped, the distance between the front end arc of the arc inclined push plate A and the arc inclined push plate B and the material column is smaller than the distance between the rear end arc of the arc inclined push plate A and the arc inclined push plate B and the material column, and the arcs at both ends of the arc inclined push plate A and the arc inclined push plate B are coaxially arranged with the material column.

[0011] Optionally, the interiors of the parallel shaft and the material stripper plate are both cavity-shaped, the material stripper plate is connected to the parallel shaft, a ventilation plate is provided inside the cavity, each parallel shaft is rotatably inserted in the interior of an adjacent ventilation plate, the parallel shaft is connected to the interior of the ventilation plate, an air supply structure is provided on the left side of the material column, a torsion ring is rotatably inserted on the right side of the air supply structure, a telescopic ventilation pipe is rotatably sleeved on the left end of the parallel shaft located in the middle of the three parallel shafts, the other end of the telescopic ventilation pipe is fixedly connected to the left side of the torsion ring, multiple material stripper plates connected to the same parallel shaft are spirally distributed on the outer surface of the parallel shaft at equal distances, and the outer surface of the material stripper plate is breathable.

[0012] Optionally, a damping opening frame is sleeved on the outer surface of the bar in a damping sliding manner, and the damping opening frame is fixed to the material column.

[0013] Optionally, the feeding structure includes a feeding barrel, which is fixedly connected to the interior of the outer box barrel, and a bent partition plate is slidably penetrated through the front of the feeding barrel, and the upper and lower ends of the bent partition plate are bent backwards, and the upper end of the bent partition plate is located in front of the lower end of the bent partition plate, and a feeding groove is provided on the inner bottom wall of the bent partition plate, and a power telescopic rod is fixed to the right side of the feeding barrel, and the telescopic end of the power telescopic rod is fixed to the bent partition plate.

[0014] In summary, the present invention includes the following beneficial technical effects: The present invention is provided with a height gear, a height tooth plate, a linkage gear, an inner bending rod and a slot plate. During screening, as the powdered raw materials are screened, the weight borne by the screening structure is gradually reduced, driving the movable frame and the height gear to move upward. The arc inclined surface push plate B pushes the uppermost round rod to make the corresponding height tooth plate contact with 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 damping cylinder and the shaft rod rotate relative to each other, driving the bending rod to move to the arc surface block, pushing the prism shaft A to insert into the linkage gear, and the linkage The gear engages with the linkage tooth plate to drive the bar to elastically approach the material column and insert the inner bending rod into the groove in the slot plate. At this time, the material column cannot rotate. When the powder raw material on the screening structure gradually decreases, the screening structure gradually stops moving upward, and the bar gradually moves away from the material column under the action of elasticity, driving the telescopic end of the inner bending rod to separate from the slot plate. At this time, the material column can rotate and drive the screening structure in the next material trough to rotate above the opening of the fine material inner cylinder for screening. After the powder raw material in the raw material screened by the screening structure is reduced to a certain level, new raw material to be screened is replaced.

[0015] The present invention arranges an arc inclined push plate A and a notched ring plate, so that when the material column rotates, the material trough connected to the feeding structure is driven to rotate upward, and the inner bending rod is driven to rotate synchronously. The inner bending rod first contacts the farther end of the arc inclined push plate A and the material column, and then the inner bending rod gradually pushes the bar close to the material column by sliding on the left side of the arc inclined push plate A. The telescopic end of the inner bending rod contracts and then slides on the right side of the notched ring plate. When the corresponding screening structure rotates to just above the opening of the fine material inner cylinder, the telescopic end of the inner bending rod is simultaneously inserted into the groove of the slot plate, so that the material column cannot continue to rotate, so that the screening structure can screen stably.

[0016] The present invention arranges a material-shifting plate, parallel shafts and a ventilation plate. The main shaft drives the bevel gear ring to rotate and mesh with the driven bevel gear B to rotate the prism shaft B. When the movable frame moves, the driving bevel gear is driven 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 shaft to rotate. The conveyor belt makes the three connected parallel shafts rotate synchronously. The parallel shaft drives the connected material-shifting plate to rotate to shift 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. When the material-shifting plate rotates, it sprays air outward to move the raw materials on the filter plate, thereby increasing the screen tube for the raw materials on the filter plate.

[0017] The present invention provides a bending partition plate and a discharge chute, and a power telescopic rod drives the bending partition plate to move. When the bending partition plate moves to the front, the lower end of the bending partition plate blocks the feed tube, and the upper end of the bending partition plate is separated from the blockage of the feed tube. The raw material in the feed tube moves to between the upper and lower ends of the bending partition plate. Then, when the bending partition plate moves to the rear, the upper end of the bending partition plate blocks the feed tube, and the discharge chute is connected with the feed tube. The raw material between the upper and lower ends of the bending partition plate can fall into the top of the filter plate in the corresponding material belt chute through the discharge chute, and can drive the same amount of raw material to fall into the corresponding material belt chute when the power telescopic rod moves back and forth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 2 is a schematic diagram of the structure of the connection between the bent spacer plate and the feed barrel in an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the outer box tube in an embodiment of the present invention; Figure 4 2 is a schematic diagram of the structure of the connection between the tooth block and the tooth wheel in an embodiment of the present invention; Figure 5 Schematic diagram of the structure of the connection between the main shaft and the spiral feeding plate in an embodiment of the present invention; Figure 6 2 is a schematic diagram of the structure in which the telescopic vent pipe is connected to the parallel axis in an embodiment of the present invention; Figure 7 is a schematic diagram of the structure in which the ventilation plate is connected to the parallel shaft in an embodiment of the present invention; Figure 8 2 is a schematic diagram of the structure of the connection between the slot plate and the notch ring plate in an embodiment of the present invention; Fig. 9 It is a schematic structural diagram of the connection between the cambered block and the damping cylinder in an embodiment of the present invention.

[0019] Figure numerals: 1. outer box cylinder; 2. inner cylinder for fine materials; 3. material column; 4. material trough; 5. filtering structure; 51. filtering plate; 52. inner trough frame; 53. parallel axis; 531. driven bevel gear A; 532. driving bevel gear; 533. prism axis B; 534. bevel gear ring; 535. driven bevel gear B; 54. material removal plate; 55. cavity; 551. ventilation plate; 552. air supply structure; 553. telescopic ventilation pipe; 554. torsion ring; 56. clamping wheel; 57. conveyor belt; 6. outward-turning cylinder; 7. movable frame; 8. feeding structure; 81. feeding cylinder; 82. bending partition plate; 83. material discharge trough; 84. power extension Retraction rod; 9, height gear; 10, height tooth plate; 11, shaft; 12, damping cylinder; 13, damping plate; 14, prism shaft A; 15, arc block; 16, bending rod; 17, linkage gear; 18, linkage tooth plate; 19, bar; 191, damping opening frame; 20, inner bending rod; 21, slot plate; 22, notched ring plate; 23, arc slope push plate A; 24, arc slope push plate B; 25, round rod; 26, spiral feed plate; 27, motor A; 28, main shaft; 29, driven gear; 30, driving gear; 31, motor B; 32, tooth wheel; 33, tooth block; 34, outer plate; 35, discharge barrel. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-9 The present invention is described in further detail.

[0021] The embodiment of the present invention discloses a powdered raw material screening device for charcoal production. Figure 1As shown, it comprises an outer box barrel 1 and a fine material inner barrel 2, the fine material inner barrel 2 is coaxially located on the inner ring side of the outer box barrel 1, a material column 3 is rotatably inserted between the outer box barrel 1 and the fine material inner barrel 2, the outer ring surface of the material column 3 is provided with a plurality of material grooves 4 connected with the inner ring surface of the material column 3, a filter structure 5 is slidably inserted inside the material groove 4, a side of the filter structure 5 close to the axis of the outer box barrel 1 is elastically connected to the inner wall of the material groove 4, and has a tendency to push the filter structure 5 to move upward, the left and right ends of the filter structure 5 slide through the left and right inner walls of the material groove 4 respectively, and the fine material inside The upper surface of one end of the cylinder 2 located inside the material column 3 is open, and 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. The end of the fine material inner cylinder 2 located on the left side of the material column 3 is bent downward, and a spiral feed plate 26 is fixed to the end of the main shaft 28 located inside the fine material inner cylinder 2. A motor A27 is fixed to the left end of the fine material inner cylinder 2, and the output end of the motor A27 is fixed to the main shaft 28. When the main shaft 28 rotates, it drives the spiral feed plate 26 to rotate, which can assist in pushing the raw materials to move in the fine material inner cylinder 2.

[0022] One end of the material column 3 located on the right side of the outer box cylinder 1 is fixedly sleeved with a driven gear 29, and the outer ring surface of the driven gear 29 is meshed with a driving gear 30. The outer ring surface of the outer box cylinder 1 is fixed with a motor B31, and the end of the driving gear 30 close to the motor B31 is coaxially fixed with a tooth wheel 32. The outer surface of the tooth wheel 32 is rotatably sleeved with an outer disk 34, and the outer ring surface of the tooth wheel 32 is meshed with a tooth block 33, which is elastically connected to the inner ring surface of the outer disk 34. The outer disk 34 is fixed to the output end of the motor B31, and the motor B31 drives the tooth block 33 to rotate through the outer disk 34. The elastically connected tooth block 33 has a tendency to mesh with the tooth wheel 32. The driving gear 30 drives the material column 3 to rotate by meshing with the driven gear 29. When the material column 3 cannot rotate, the tooth block 33 elastically approaches the inner ring surface of the outer disk 34, so that the tooth block 33 can be misaligned with the tooth wheel 32.

[0023] An outward-turning cylinder 6 is fixed to the right end of the fine material inner cylinder 2, and the left end of the fine material inner cylinder 2 is fixed to the outer box cylinder 1. The end of the filtering structure 5 located on the right side of the 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. The side of the filter 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 shaft 53. A plurality of material-pickling plates 54 are fixed to the outer ring surface of one end of the parallel shaft 53 located on the inner side of the inner groove frame 52. When the parallel shaft 53 drives the material-pickling plate 54 to rotate, the raw material on the filter plate 51 can be moved to rotate, so that the powdered raw material on the filter plate 51 can fall down. A cavity is provided at the right end of the inner groove frame 52 55, one end of the three parallel shafts 53 located inside the cavity 55 is driven by the conveyor belt 57, and a clamping wheel 56 is provided between each two adjacent parallel shafts 53, and 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 clamping wheel 56 can stably drive the three parallel shafts 53 to rotate synchronously when the conveyor belt 57 rotates, and 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 material groove 4 respectively, and the filter plate 51 and the inner groove frame 52 are slidably inserted into the inside of the material groove 4, and the side of the filter plate 51 close to the axis of the material column 3 is elastically connected to the inner wall of the material groove 4, and the movable frame 7 is rotatably connected to the adjacent parallel shafts 53.

[0024] The right end of the parallel shaft 53 connected to the movable frame 7 is rotatably sleeved with a driven bevel gear A531, and 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 with the adjacent movable frame 7. A prism shaft B533 slides through the side of the driving bevel gear 532 away from the axis of the material column 3. The end of the prism shaft B533 away from the axis of the material column 3 is rotatably connected with the material column 3, and the end of the prism shaft B533 away from the axis of the material column 3 is fixedly sleeved with a driven bevel gear B535. A bevel gear ring 534 is provided on the right side of the material column 3, and the driven bevel gear B535 is meshed 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 active bevel gear 532 to slide on the surface of the prism shaft B533. The bevel gear ring 534 is meshed with the driven bevel gear B535 to drive the prism shaft B533 and the active bevel gear 532 to rotate synchronously. The driven bevel gear A531 is meshed with the active bevel gear 532 to drive the connected parallel shaft 53 to rotate.

[0025] The interiors of the parallel shaft 53 and the material-shifting plate 54 are both cavity-shaped, and the material-shifting plate 54 is connected to the parallel shaft 53. A vent plate 551 is arranged inside the cavity 55. Each parallel shaft 53 is rotatably plugged into the interior of the adjacent vent plate 551. The parallel shaft 53 is connected to the interior of the vent plate 551. An air supply structure 552 is arranged on the left side of the material column 3. A torsion ring 554 is rotatably plugged into the right side of the air supply structure 552. A telescopic vent pipe 553 is rotatably sleeved on the left end of the parallel shaft 53 in the middle of the three parallel shafts 53. The air supply structure 552 fills the telescopic vent pipe 553 with air. The other end of the telescopic vent pipe 553 is fixedly connected to the left side of the torsion ring 554, and multiple stripper plates 54 connected to the same parallel axis 53 are spirally distributed on the outer surface of the parallel axis 53 at equal distances. The outer surface of the stripper plate 54 is breathable. The air supply structure 552 fills the connected parallel axis 53 through the telescopic vent pipe 553. The vent plate 551 allows the three connected parallel axes 53 to be filled with gas. The airflow filled in the parallel axis 53 is ejected from the stripper plate 54. The ejected airflow and the rotation of the stripper plate 54 assist the movement of the raw materials, which is convenient for the separation of the powdered raw materials.

[0026] The end of the movable frame 7 away from the material column 3 is rotatably sleeved with a height gear 9, and a height tooth plate 10 is arranged 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, and a round rod 25 is fixed to the end of the height tooth plate 10 away from the axis of the material column 3. As the powdered raw material on the filter plate 51 falls, the weight of the raw material above the filter plate 51 gradually decreases, and 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, and a prism shaft A14 is slidably inserted at 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 tooth plate 10. A damping cylinder 12 is rotatably sleeved at one end of the shaft rod 11. The damping contact of the damping cylinder 12 on one side close to the material column 3 is provided with a damping plate 13, and 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, and a bending rod 16 is fixed to one end of the prism axis A14 located inside the damping cylinder 12, and two arc blocks 15 are fixed to the inner wall of one end of the damping cylinder 12 away from the prism axis A14, and the middle position of the arc block 15 is a convex structure, and the end of the prism axis A14 located inside the damping cylinder 12 is elastically connected to the shaft rod 11, and the end of the shaft rod 11 away from the damping cylinder 12 is rotatably sleeved with a linkage gear 17, and the end of the linkage gear 17 close to the prism axis A14 is a matching groove structure, and the relative rotation of the damping cylinder 12 and the shaft rod 11 drives the bending rod 16 to move to the arc block 15, and pushes the prism axis A14 to insert into the linkage gear 17.

[0027] A linkage tooth plate 18 is meshed on one side of the linkage gear 17 close to the axis of the material column 3, and a bar 19 is fixed on the side of the linkage tooth plate 18 away from the linkage gear 17. The bar 19 is elastically connected to the material column 3, and the elastically connected bar 19 has a tendency to move away from the material column 3. An inner bending rod 20 is fixed to one end of the bar 19 away from the material column 3, and the other end of the inner bending rod 20 is a telescopic end. A damping opening frame 191 is sleeved on the outer surface of the bar 19 for damping sliding. The damping opening frame 191 is fixed to the material column 3, and the damping opening frame 191 has the function of slowing down the speed at which the bar 19 moves away from the material column 3, so as to prevent powder raw materials from being unable to be screened in time. When it falls from the filter plate 51, the material column 3 rotates directly, and the inner bending rod 20 is located on the outer ring side of the outward-turned cylinder 6. A slot plate 21 is fixed to the outer ring surface of the end of the outward-turned cylinder 6 away from the material column 3, and a notch ring plate 22 is fixed to the outer ring surface of the end of the outward-turned cylinder 6 away from the material column 3. One end of the notch ring plate 22 is fixed to the slot plate 21. When the bar 19 approaches the material column 3, the telescopic end of the inner bending rod 20 is inserted into the slot plate 21, so that the material column 3 cannot rotate and the outer box cylinder 1 rotates. When the height gear 9 stops moving upward, the bar 19 is elastically connected and gradually drives the inner bending rod 20 to disengage from the slot plate 21, so that the material column 3 can rotate.

[0028] An arc inclined surface push plate A23 is fixed to the end of the outward-turned cylinder 6 away from the material column 3, the inner bending rod 20 is located between the arc inclined surface push plate A23 and the material column 3, an arc inclined surface push plate B24 is fixed to the end of the outward-turned cylinder 6 away from the material column 3, the round rod 25 is located between the material column 3 and the arc inclined surface push plate B24, both ends of the arc inclined surface push plate A23 and the arc inclined surface push plate B24 are arc-shaped, the distance between the front end arc of the arc inclined surface push plate A23 and the arc inclined surface push plate B24 and the material column 3 is smaller than the distance between the rear end arc of the arc inclined surface push plate A23 and the arc inclined surface push plate B24 and the material column 3, and the arcs at both ends of the arc inclined surface push plate A23 and the arc inclined surface push plate B24 are coaxially arranged with the material column 3 Before the round rod 25 contacts the circular arc inclined surface push plate B24, the height tooth plate 10 is disengaged from the height gear 9. When the round rod 25 moves to the closer end of the circular arc inclined surface push plate B24 and the material column 3, the round rod 25 pushes the height tooth plate 10 to engage with the height gear 9. When the inner bending rod 20 rotates, it first contacts the farther end of the circular arc inclined surface push plate A23 and the material column 3. Then, the inner bending rod 20 gradually pushes the bar 19 closer to the material column 3 by sliding on the left side of the circular arc inclined surface push plate A23. The telescopic end of the inner bending rod 20 contracts and then slides on the right side of the notched ring plate 22. When the slot of the inner bending rod 20 coincides with that of the slot plate 21, the telescopic end of the inner bending rod 20 is inserted into the groove of the slot plate 21.

[0029] The back of the outer box tube 1 is fixedly connected with a feed structure 8, and the bottom of the outer box tube 1 is fixedly connected with a discharge tube 35. The feed structure 8 includes a feed tube 81, and the feed tube 81 is fixedly connected with the inside of the outer box tube 1. The front of the feed tube 81 is slidably penetrated by a bent partition plate 82, and the upper and lower ends of the bent partition plate 82 are bent backwards, and the upper end of the bent partition plate 82 is located in front of the lower end of the bent partition plate 82. The inner bottom wall of the bent partition plate 82 is provided with a discharge groove 83, and a power telescopic rod 84 is fixed to the right side of the feed tube 81. The extension of the power telescopic rod 84 The contracted end is fixed to the bent spacer plate 82. When the bent spacer plate 82 moves to the front, the lower end of the bent spacer plate 82 blocks the feed barrel 81, and the upper end of the bent spacer plate 82 is separated from the blockage of the feed barrel 81. The raw material in the feed barrel 81 moves between the upper and lower ends of the bent spacer plate 82. Then, when the bent spacer plate 82 moves to the rear, the upper end of the bent spacer plate 82 blocks the feed barrel 81, and the lower material trough 83 is connected with the feed barrel 81. When the bent spacer plate 82 moves back and forth, it can drive the same amount of raw material to fall into the corresponding material trough 4.

[0030] The working principle is as follows: when the power telescopic rod 84 drives the bending partition plate 82 to move back and forth, raw materials are added into the connected belt trough 4 through the lower trough 83, and when the belt column 3 rotates, the belt trough 4 connected to the feed barrel 81 is driven to rotate upward, driving the inner bending rod 20 to rotate synchronously, and the inner bending rod 20 first contacts the farther end of the arc inclined surface push plate A23 and the belt column 3, and then the inner bending rod 20 gradually pushes the bar 19 close to the belt column 3 by sliding on the left side of the arc inclined surface push plate A23, and the telescopic end of the inner bending rod 20 shrinks and then slides on the right side of the notched ring plate 22 When the corresponding material belt trough 4 rotates to the top of 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 card slot plate 21 at the same time, so that the material belt column 3 cannot continue to rotate, and the parallel shaft 53 drives the connected material shifting plate 54 to rotate to shift the raw materials above the filter plate 51. The ventilation plate 551 allows the three connected parallel shafts 53 to be ventilated. The material shifting plate 54 sprays air outward when rotating, so that the raw materials on the filter plate 51 move, so that the powdered raw materials fall downward from the filter plate 51, and the powdered raw materials fall into the fine material inner cylinder 2 from the opening of the fine material inner cylinder 2. As the powdered raw materials The weight of the filter plate 51 is gradually reduced, driving the movable frame 7 and the height gear 9 to move upward, and the arc inclined surface push plate B24 pushes the uppermost round rod 25 to make the corresponding height tooth plate 10 contact with the height gear 9. When the height gear 9 moves upward, the shaft rod 11 and the prism shaft A14 move upward, and the damping plate 13 applies resistance to the rotation of the damping cylinder 12. The damping cylinder 12 and the shaft rod 11 rotate relative to each other, driving the bending rod 16 to move to the arc surface block 15, pushing the prism shaft A14 to insert into the linkage gear 17, and the linkage gear 17 meshes with the linkage tooth plate 18. The driving rod 19 elastically approaches the material column 3, and the inner bending rod 20 is inserted into the groove in the slot plate 21. At this time, the material column 3 cannot rotate. When the powder raw material on the filter plate 51 gradually decreases, the filter plate 51 gradually stops moving upward, and the rod 19 gradually moves away from the material column 3 under the action of elasticity, driving the telescopic end of the inner bending rod 20 to separate from the slot plate 21. At this time, the material column 3 can rotate and drive the next material slot 4 to rotate to the top of the opening of the fine material inner cylinder 2 for screening. After the powder raw material in the raw material screened by the filter plate 51 is reduced to a certain level, new raw material to be screened is replaced.

[0031] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in 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), Features: 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. A powdered raw material screening device for charcoal production according to claim 1, Features: 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. A powdered raw material screening device for charcoal production according to claim 1, Features: 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. A powdered raw material screening device for charcoal production according to claim 2, Features: 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 every two adjacent parallel shafts (53) are connected to each other. A clamping wheel (56) is arranged between 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). The side 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. A powdered raw material screening device for charcoal production according to claim 4, Features: 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. A powdered raw material screening device for charcoal production according to claim 1, Features: 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. A powdered raw material screening device for charcoal production according to claim 4, Features: 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. A powdered raw material screening device for charcoal production according to claim 1, Features: 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. A powdered raw material screening device for charcoal production according to claim 1, Features: 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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