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CN-224221423-U - Coal crushing and screening device

CN224221423UCN 224221423 UCN224221423 UCN 224221423UCN-224221423-U

Abstract

The utility model discloses a coal crushing and screening device, which belongs to the technical field of coal processing and comprises a workbench, a crushing box arranged on the workbench, a filter screen arranged between the crushing box and the workbench, a quantity control assembly arranged in the crushing box and used for intermittently discharging crushed materials, a blanking shaft arranged in the crushing box in a rotating mode, a plurality of blanking tanks arranged on the blanking shaft at equal angles, a cleaning assembly arranged in the workbench and positioned at the lower side of the filter screen and used for dredging the filter screen, and a driving assembly arranged on the workbench and used for driving the crushing box, the quantity control assembly and the cleaning assembly to work simultaneously, so that the efficiency of the device is higher during screening and crushing, the filter screen is prevented from being blocked during screening and crushing, and the working efficiency of the device is prevented from being influenced.

Inventors

  • YU CHAO
  • TIAN YANSHENG
  • LIU WEIXIONG
  • JIANG KUNKUN
  • LI WEIDONG
  • GE XIANHAO

Assignees

  • 国电建投内蒙古能源有限公司
  • 大地工程开发(集团)有限公司

Dates

Publication Date
20260512
Application Date
20250103

Claims (10)

  1. 1. The utility model provides a coal crushing screening plant, includes workstation (1), sets up broken case (2) on workstation (1), sets up filter screen (3) between broken case (2) and workstation (1), characterized by still includes: The quantity control assembly is arranged in the crushing box (2) and used for intermittently discharging crushed materials, and comprises a discharging shaft (4) rotatably arranged in the crushing box (2) and a plurality of discharging grooves (5) formed in the discharging shaft (4) at equal angles, wherein the crushing shaft in the crushing box (2) and the discharging shaft (4) are in transmission arrangement; the cleaning assembly is arranged in the workbench (1) and is positioned at the lower side of the filter screen (3) and used for dredging the filter screen (3), and comprises two steel brush plates (7) which are rotatably arranged in the workbench (1); The driving assembly is arranged on the workbench (1) and is used for driving the crushing box (2), the quantity control assembly and the cleaning assembly to work simultaneously.
  2. 2. The coal crushing and screening device according to claim 1, wherein the quantity control assembly further comprises a first rotary column (6) rotatably arranged in the crushing box (2), the blanking shaft (4) is arranged on the first rotary column (6), and the blanking shaft (4) is arranged on the lower side of the crushing shaft in the crushing box (2).
  3. 3. A coal crushing and screening device according to claim 1, characterized in that the cleaning assembly further comprises two second rotating columns (8) rotatably arranged in the table (1), the two second rotating columns (8) being reversed by means of a reversing wheel (10) arranged to rotate in opposite directions.
  4. 4. A coal crushing and screening device according to claim 3, characterized in that the second rotary column (8) is provided with a mounting plate (9), the steel brush plate (7) is arranged on the mounting plate (9), and a displacement assembly for moving the steel brush plate (7) is further arranged between the mounting plate (9) and the steel brush plate (7).
  5. 5. The coal crushing and screening device according to claim 4, wherein the displacement assembly comprises a piston cylinder (11) arranged on the workbench (1), a piston rod (12) is arranged in the piston cylinder (11) in a sliding mode, a spring (13) for resetting the piston rod is sleeved between the piston rod (12) and the piston cylinder (11), an air bag (14) is arranged between the steel brush plate (7) and the mounting plate (9), an air pipe (15) is connected through the end portion of the piston cylinder (11), and the end portion of the air pipe (15) is connected through the air bag (14).
  6. 6. A coal crushing and screening device according to claim 5, characterized in that the end initial position of the piston rod (12) is located in the middle of the piston cylinder (11) for driving the piston rod (12) to move left and right in the piston cylinder (11).
  7. 7. A coal crushing and screening device according to claim 6, characterized in that the end of the air bag (14) is provided with an electromagnetic exhaust valve, which is controlled by an external controller for the exhaust of air inside the air bag (14).
  8. 8. The coal crushing and screening device according to claim 7, wherein the driving assembly comprises a rack (16) fixedly arranged on a piston rod (12), a driving motor (23) arranged on the workbench (1) and in transmission connection with the output end of the driving motor (23), a reduction gearbox (17) arranged on the workbench (1), the output end of the driving motor (23) is in transmission connection with the input end of the reduction gearbox (17), a half gear (18) is arranged at the output end of the reduction gearbox (17), a reversing gearbox (19) is arranged on the workbench (1), an all-gear (20) and an intermittent gear (21) are arranged at the input end of the reversing gearbox (19), the half gear (18) is in movable engagement with the all-gear (20), the intermittent gear (21) is in movable engagement with the rack (16), a torsion spring (22) is sleeved on the output end of the reversing gearbox (19), and the output end of the reversing gearbox (19) is in transmission connection with the second rotary column (8).
  9. 9. The coal crushing and screening device according to claim 8, wherein a plurality of gaps are formed in the intermittent gear (21) at equal angles, the gaps are positioned between every two groups of teeth, and the number of the teeth in each group is at least seven.
  10. 10. The coal crushing and screening device according to claim 9, wherein the workbench (1) is obliquely arranged, and a feed opening is formed in the bottom of the workbench (1).

Description

Coal crushing and screening device Technical Field The utility model belongs to the technical field of coal processing, and particularly relates to a coal crushing and screening device. Background Coal is known as black gold, industrial food, it is one of the main energy that human world used from eighteen centuries, coal generally need be broken in the in-process of exploitation, the material after the breakage is sieved according to the size afterwards, finally process different products according to the size of sieving, but current equipment is when carrying out crushing and sieving, because the raw materials are broken back, its size and shape are all different, and the material after the breakage can be polygonal, when the material passes the filter screen, can lead to the material card in the filter screen, lead to the filtration pore jam of filter screen, the filtration efficiency of filter screen can lead to the filtration efficiency of filter screen to worsen for a long time, and still need manual clearance when needing to clear up, then lead to the clearance efficiency of equipment to be comparatively slow, for example in patent number CN202321549908.9 just has above-mentioned problem, lead to the in-process that equipment sieves, the coal material can block in the filter screen, thereby lead to the condition of the unable quick unloading of filter screen. Disclosure of utility model Aiming at the problems in the prior art, the utility model provides a coal crushing and screening device, which solves the problems that a filter screen is easy to block and the manual cleaning efficiency is low when equipment is used for screening. The utility model is realized in that the coal crushing and screening device comprises a workbench, a crushing box arranged on the workbench, a filter screen arranged between the crushing box and the workbench, and further comprises: The quantity control assembly is arranged in the crushing box and used for intermittently discharging crushed materials, and comprises a discharging shaft rotatably arranged in the crushing box and a plurality of discharging grooves formed in the discharging shaft at equal angles, wherein the crushing shaft in the crushing box and the discharging shaft are in transmission arrangement; The cleaning assembly is arranged in the workbench, is positioned at the lower side of the filter screen and is used for dredging the filter screen and comprises two steel brush plates rotatably arranged in the workbench; The driving assembly is arranged on the workbench and used for simultaneously driving the crushing box, the quantity control assembly and the cleaning assembly to simultaneously work. Preferably, the volume control assembly further comprises a first rotary column rotatably arranged in the crushing box, the blanking shaft is arranged on the first rotary column, and the blanking shaft is arranged on the lower side of the crushing shaft in the crushing box. Preferably, the cleaning assembly further comprises two second rotating columns rotatably arranged in the workbench, and the two second rotating columns are reversed through one reversing wheel, so that the two second rotating columns rotate in opposite directions. As the preferable mode of the utility model, the second rotating column is provided with a mounting plate, the steel brush plate is arranged on the mounting plate, and a displacement component for moving the steel brush plate is also arranged between the mounting plate and the steel brush plate. As the preferable mode of the utility model, the displacement component comprises a piston cylinder arranged on the workbench, a piston rod is arranged in the piston cylinder in a sliding way, a spring for resetting the piston rod is sleeved between the piston rod and the piston cylinder, an air bag is arranged between the steel brush plate and the mounting plate, the end part of the piston cylinder is in through connection with an air pipe, and the end part of the air pipe is in through connection with the air bag. Preferably, the initial end position of the piston rod is located at the middle position of the piston cylinder and is used for driving the piston rod to move left and right in the piston cylinder. Preferably, the end of the air bag is provided with an electromagnetic exhaust valve which is controlled by an external controller and is used for exhausting air inside the air bag. The utility model is characterized in that the driving assembly comprises a rack fixedly arranged on a piston rod, a driving motor arranged on a workbench, a first rotating column and a reduction gear box arranged on the workbench, wherein the output end of the driving motor is in transmission connection with the input end of the reduction gear box, a half gear is arranged at the output end of the reduction gear box, a reversing gear box is arranged on the workbench, an all gear and an intermittent gear are arranged at the input end of the reversing gear box,