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CN-121994016-A - Sectional type feeding device of rotary kiln

CN121994016ACN 121994016 ACN121994016 ACN 121994016ACN-121994016-A

Abstract

The invention provides a sectional type feeding device of a rotary kiln, which comprises a feed bin, wherein a feed cylinder capable of feeding materials into the feed bin is arranged at the top of the feed bin, a paddle shaft concentric with the feed cylinder is rotatably arranged in the feed cylinder, at least one first paddle rod perpendicular to the paddle shaft is arranged on the outer wall of the paddle shaft, and a second paddle rod capable of relatively moving in the axial direction of the first paddle rod and parallel to the paddle shaft is arranged on the first paddle rod. The actuating mechanism is triggered by driving the paddle shaft to rotate, so that the second paddle rod moves back and forth in the axial direction of the first paddle rod, and the feeding assembly can be used for transmitting mineral aggregate in the storage bin to the kiln body in a segmented mode. The invention can fully scatter the mineral aggregate before calcining to ensure uniform distribution among the material grains, and then the scattered mineral aggregate is transferred to the kiln body in a segmented way along the axial direction of the kiln body, so that the mineral aggregate can be uniformly distributed in the kiln body, the heating and reaction effects are ensured, and the production efficiency and the product quality are improved.

Inventors

  • TANG HUIFENG

Assignees

  • 塞尔姆（北京）科技有限责任公司
  • 个旧恒瑞工贸有限公司

Dates

Publication Date
20260508
Application Date
20260129

Claims (10)

  1. 1. The sectional type feeding device of the rotary kiln is characterized by comprising a storage bin (2), wherein a feed cylinder (3) capable of feeding materials into the storage bin is arranged at the top of the storage bin (2), a paddle shaft (9) concentric with the feed cylinder is rotatably arranged in the feed cylinder (3), at least one first paddle rod (10) perpendicular to the paddle shaft is arranged on the outer wall of the paddle shaft (9), and a second paddle rod (11) capable of relatively moving in the axial direction and parallel to the paddle shaft (9) is arranged on the first paddle rod (10); The device further comprises an actuating mechanism and a feeding assembly, the actuating mechanism is triggered by driving the paddle shaft (9) to rotate, the second paddle rod (11) moves back and forth in the axial direction of the first paddle rod (10), and the feeding assembly can be used for conveying mineral aggregate in the storage bin (2) to the kiln body (1) in a segmented mode.
  2. 2. The rotary kiln sectional type feeding device as claimed in claim 1, wherein the actuating mechanism comprises a tray body (13) fixed on the inner top wall of the charging barrel (3), the paddle shaft (9) penetrates through the tray body (13) and rotates relative to the tray body (13), a second limit groove (14) and a third limit groove (15) are respectively formed in the bottom of the tray body (13) in an arc direction, two ends of the second limit groove (14) are respectively communicated with two ends of the third limit groove (15), the curvatures of the second limit groove (14) and the third limit groove (15) are different, the top of the second paddle rod (11) can be respectively in sliding fit with the second limit groove (14) and the third limit groove (15), and a first limit groove (12) for the second paddle rod (11) to move and penetrate through is axially formed in the first paddle rod (10).
  3. 3. The rotary kiln sectional type feeding device according to claim 2, wherein a third paddle rod (22) parallel to the second paddle rod (11) is fixed on the outer wall of one end, far away from the paddle shaft (9), of the first paddle rod (10), a rotary drum (18) parallel to the first paddle rod (10) is rotatably arranged on the third paddle rod (22), a connecting rod (17) is inserted into one end of the rotary drum (18), one end of the connecting rod (17) is fixed on the outer wall of the second paddle rod (11), a plurality of inclined fourth paddle rods (23) are circumferentially arranged at the other end of the rotary drum (18), and the connecting rod (17) is driven to axially reciprocate relative to the rotary drum (18) through the second paddle rod (11) so that the rotary drum (18) can reciprocate in the circumferential direction.
  4. 4. A rotary kiln sectional feed device as claimed in claim 3, characterized in that the inner side of the drum (18) is axially provided with a helically shaped groove (20), and the outer wall of the connecting rod (17) is provided with a projection (21) in sliding fit with the groove (20).
  5. 5. The rotary kiln sectional type feeding device according to claim 2, wherein the inner side of the first paddle rod (10) close to the top of the first paddle rod is rotatably provided with a roller (24) capable of being in rolling fit with the groove side wall of the second limit groove (14) and the groove side wall of the third limit groove (15), a first gear (25) is concentrically fixed on the roller (24), a rotating shaft (27) is concentrically inserted into the bottom of the first paddle rod (10), a second gear (26) matched with the first gear (25) is arranged at the top of the rotating shaft (27), and a plurality of inclined fifth paddle rods (28) are circumferentially arranged at the bottom of the rotating shaft (27).
  6. 6. A rotary kiln sectional feed device as claimed in claim 1, wherein a second motor (32) is mounted on top of the barrel (3), and the output shaft of the second motor (32) is connected to the top of the rotor shaft (9).
  7. 7. The rotary kiln sectional type feeding device according to claim 1, wherein a material guiding plate (29) is arranged in the material cylinder (3), a scattering cavity and a material storing cavity are formed by separating the material guiding plate (29) from top to bottom, the bottom of the paddle shaft (9) is rotatably supported in the middle of the top of the material guiding plate (29), a slope which is inclined in a centripetal manner is arranged at the top of the material guiding plate (29), and a blanking hole (30) is formed in the material guiding plate (29).
  8. 8. The rotary kiln sectional type feeding device according to claim 7, wherein a feeding pipe (16) is arranged on the outer side of the charging barrel (3), a discharging pipe (8) communicated with the storage cavity is arranged at the bottom of the charging barrel (3), and a guide chute (7) communicated with the discharging pipe (8) is arranged at the top of the storage bin (2).
  9. 9. A rotary kiln sectional feed device as claimed in claim 1, characterized in that the feed assembly comprises a feed pipe (33) arranged axially along the kiln body (1), one end of the feed pipe (33) is fixed inside the bin (2), the top is provided with a feed inlet (6) for feeding ore, the other end of the feed pipe extends into the kiln body (1), a packing auger (4) parallel to the axial direction of the feed pipe is rotationally arranged in the feed pipe (33), and a plurality of discharge pipes (5) are arranged at the bottom of the feed pipe (33) at equal intervals axially along the feed pipe.
  10. 10. A rotary kiln sectional feed device as claimed in claim 9, characterized in that the silo (2) is provided with a first motor (31), the output shaft of the first motor (31) being connected with the auger (4) auger shaft.

Description

Sectional type feeding device of rotary kiln Technical Field The invention relates to the technical field of rotary kilns, in particular to a sectional type feeding device of a rotary kiln. Background The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. The rotary kiln is a thermal equipment widely used in cement, metallurgy, chemical industry and other industries, and continuously and stably supplies materials into the kiln when in work. At present, the existing rotary kiln feeding mode is mainly single feeding point feeding, and the feeding mode has a plurality of problems that before mineral aggregates are put into a rotary kiln, local aggregates exist among the mineral aggregates, calcination is insufficient when the mineral aggregates enter the kiln body later, and in addition, the mineral aggregates enter the rotary kiln at one position, so that the mineral aggregates are unevenly distributed in the kiln, thereby influencing the heating and reaction effects of the mineral aggregates and reducing the production efficiency and the product quality. Disclosure of Invention The invention mainly aims to provide a sectional type feeding device of a rotary kiln. The rotary kiln sectional type feeding device comprises a feed bin, wherein a feed cylinder capable of feeding materials into the feed bin is arranged at the top of the feed bin, a paddle shaft concentric with the feed cylinder is rotatably arranged in the feed cylinder, at least one first paddle rod perpendicular to the paddle shaft is arranged on the outer wall of the paddle shaft, and a second paddle rod capable of relatively moving in the axial direction of the first paddle rod and parallel to the paddle shaft is arranged on the first paddle rod; The feeding device further comprises an actuating mechanism and a feeding assembly, the actuating mechanism is triggered by driving the paddle shaft to rotate, the second paddle rod moves back and forth in the axial direction of the first paddle rod, and the feeding assembly can be used for conveying mineral aggregate in the storage bin to the kiln body in a segmented mode. Further, the actuating mechanism comprises a tray body fixed on the inner top wall of the charging barrel, the paddle shaft penetrates through the tray body and rotates relative to the tray body, a second limit groove and a third limit groove are formed in the bottom of the tray body in an arc direction respectively, two ends of the second limit groove are communicated with two ends of the third limit groove respectively, the curvatures of the second limit groove and the third limit groove are different, the top of the second paddle rod can be in sliding fit with the second limit groove and the third limit groove respectively, and a first limit groove for the second paddle rod to move and penetrate through is formed in the first paddle rod in an axial direction. Still further, be fixed with the third oar pole parallel with the second oar pole on the outer wall that the oar axle one end was kept away from to first oar pole, rotate on the third oar pole and be provided with the rotary drum parallel with first oar pole, rotary drum one end is inserted and is equipped with the connecting rod, and connecting rod one end is fixed on the second oar pole outer wall, and rotary drum other end circumference is provided with the fourth oar pole of many slopes, drives the connecting rod through the second oar pole and carries out axial reciprocating motion relative rotary drum, makes the rotary drum reciprocating rotation in self circumference. Furthermore, a spiral groove is axially formed in the inner side of the rotary drum, and a lug which is in sliding fit with the groove is arranged on the outer wall of the connecting rod. Still further, the inboard rotation that first oar pole is close to its top is provided with can with second spacing groove lateral wall and third spacing groove lateral wall rolling fit's gyro wheel, is fixed with first gear on the gyro wheel with one heart, and first oar pole bottom inserts with one heart and is equipped with the pivot, and the pivot top is provided with and with first gear complex second gear, and pivot bottom circumference is provided with the fifth oar pole of a plurality of inclinations. Further, a second motor is installed at the top of the charging barrel, and an output shaft of the second motor is connected with the top of the paddle shaft. Further, a guide plate is arranged in the feed cylinder, a scattering cavity and a storage cavity are formed by isolating the guide plate from top to bottom, the bottom of the paddle shaft is rotatably supported in the middle of the top of the guide plate, a slope which is inclined in a centripetal manner is arranged at the top of the guide plate, and a blanking hole is formed in the guide plate. Furthermore, the feed pipe is installed in the feed cylinder outside, and the fe