Search

CN-224208525-U - Coal separator

CN224208525UCN 224208525 UCN224208525 UCN 224208525UCN-224208525-U

Abstract

The utility model relates to the technical field of coal screening equipment, in particular to a coal separator which comprises a mounting frame, a first screening screen plate, a feeding hopper, a feeding impeller and a driving device, wherein the first screening screen plate is connected to the mounting frame and is arranged in an up-down inclined mode, the feeding hopper is connected to the mounting frame and is provided with a discharge hole, the discharge hole is positioned above the higher end of the screening screen plate, the feeding impeller is rotatably connected to the mounting frame or the feeding hopper and is positioned above the higher end of the first screening screen plate, at least part of the feeding impeller is positioned in the discharge hole, the driving device is connected to the mounting frame or the feeding hopper and is in transmission connection with the feeding impeller, the driving device drives the feeding impeller to rotate, the coal discharging speed can be controlled by adjusting the rotating speed of the feeding impeller, and the feeding impeller can also play a role of pushing coal falling on the first screening screen plate to avoid the blockage of the coal on the first screening screen plate.

Inventors

  • WANG BIN
  • MENG YUFANG
  • TIAN BAOXIONG
  • LI PEIQI
  • ZHANG LIFANG
  • NIU CHAO
  • LI TONGPO
  • WANG YAJUN
  • GAO LI
  • YANG JIAN

Assignees

  • 国能神东煤炭集团有限责任公司
  • 中国神华能源股份有限公司神东煤炭分公司

Dates

Publication Date
20260508
Application Date
20250529

Claims (10)

  1. 1. The coal separator is characterized by comprising a mounting frame (1), a first screening screen plate (21), a feeding hopper (4), a feeding impeller (31) and a driving device (5); the first screening screen plate (21) is connected to the mounting frame (1) and the first screening screen plate (21) is obliquely arranged up and down; The feeding hopper (4) is connected to the mounting frame (1), the feeding hopper (4) is provided with a discharge hole (41), and the discharge hole (41) is positioned above the higher end of the first screening screen plate (21); The feeding impeller (31) is rotatably connected to the mounting frame (1) or the feeding hopper (4), the feeding impeller (31) is positioned above the higher end of the first screening screen (21), and at least part of the feeding impeller (31) is positioned in the discharge hole (41); the driving device (5) is connected to the mounting frame (1) or the charging hopper (4) and is in transmission connection with the feeding impeller (31).
  2. 2. The coal separator according to claim 1, further comprising a second screening screen (22) and a discharge impeller (32), wherein the second screening screen (22) is arranged on the mounting frame (1) and below the first screening screen (21), and the discharge impeller (32) is rotatably connected to the mounting frame (1) and is positioned between the second screening screen (22) and the first screening screen (21).
  3. 3. The coal separator according to claim 2, wherein the driving device (5) comprises a first motor (51), a first belt wheel and a second belt wheel (52), the first motor (51) is connected to the mounting frame (1), an output end of the first motor (51) is connected with the discharging impeller (32) and the first belt wheel, the second belt wheel (52) is connected with the feeding impeller (31), and the second belt wheel (52) and the first belt wheel are in belt transmission.
  4. 4. The coal separator according to claim 1, characterized in that the upper end of the feed hopper (4) is connected with a spray header (6), the spray header (6) having a spray port arranged towards the feed port of the feed hopper (4).
  5. 5. A coal separator according to any one of claims 1-4, further comprising a reciprocating lifting device (7), the mounting frame (1) being arranged on the reciprocating lifting device (7).
  6. 6. The coal separator according to claim 5, characterized in that the reciprocating lifting device (7) comprises a base (73), a first lifting mechanism and a second lifting mechanism; The mounting frame (1) is provided with a first direction (X) and a second direction (Y) which are vertically arranged, the lower end of the first lifting mechanism and the lower end of the second lifting mechanism are connected with the upper ends of two sides of the base (73) in the first direction (X), the upper end of the first lifting mechanism and the upper end of the second lifting mechanism are connected with the lower ends of two sides of the mounting frame (1) in the first direction (X), the first lifting mechanism is provided with a first opening (711) penetrating along the first direction (X), and the second lifting mechanism is provided with a second opening (721) penetrating along the first direction (X); The coal separator further comprises a receiving tray (8), wherein the receiving tray (8) is arranged on the base (73) and located below the mounting frame (1), and the receiving tray (8) is arranged in the first opening (711) and the second opening (721) in a penetrating mode.
  7. 7. The coal separator according to claim 6, wherein the reciprocating lifting device (7) further comprises a first slider (74), a second slider (75) and a driving mechanism (76), wherein the first slider (74) and the second slider (75) are slidably connected to the base (73) along the first direction (X), and the driving mechanism (76) is configured to be capable of driving the first slider (74) and the second slider (75) to approach or separate from each other; The first lifting mechanism comprises a first supporting piece (71), the second lifting mechanism comprises a second supporting piece (72), the lower ends of the first supporting piece (71) and the second supporting piece (72) are respectively hinged on the first sliding piece (74) and the second sliding piece (75), and the hinge shafts of the first supporting piece (71) and the second supporting piece (72) are parallel to the second direction (Y); The first opening (711) and the second opening (721) are provided to the first support (71) and the second support (72), respectively.
  8. 8. The coal separator of claim 7, wherein the drive mechanism (76) includes an extension spring (761), a second motor (762), and a cam member (763); The cam piece (763) is rotatably connected to the base (73), the cam piece (763) is positioned between the first sliding piece (74) and the second sliding piece (75), one end of the extension spring (761) is connected with the first sliding piece (74), the other end of the extension spring is connected with the second sliding piece (75) in the first direction (X), and the first sliding piece (74) and the second sliding piece (75) are respectively abutted with two sides of the cam piece (763) in the first direction (X); the second motor (762) is connected to the base (73), and the second motor (762) is in transmission connection with the cam piece (763).
  9. 9. The coal separator according to claim 7, wherein the reciprocating lifting device (7) further comprises a guide post (77), the guide post (77) is connected to the base (73), and the first sliding piece (74) and the second sliding piece (75) are slidably sleeved on the outer side of the guide post (77).
  10. 10. The coal separator according to claim 7, wherein the first support (71) comprises a first link (712) and a second link (713) arranged in parallel at intervals along the second direction (Y), the interval between the first link (712) and the second link (713) forming the first opening (711), the second support (72) comprises a third link (722) and a fourth link (723) arranged in parallel at intervals along the second direction (Y), the interval between the third link (722) and the fourth link (723) forming the second opening (721); The upper end of the first connecting rod (712) and the upper end of the second connecting rod (713) are hinged at the lower end of one side of the mounting frame (1) in the first direction (X), and the lower end of the first connecting rod (712) and the lower end of the second connecting rod (713) are hinged at the upper end of the first sliding piece (74); The upper end of the third link (722) and the upper end of the fourth link (723) are hinged to the lower end of the other side of the mounting frame (1) in the first direction (X), and the lower end of the third link (722) and the lower end of the fourth link (723) are hinged to the upper end of the second slider (75).

Description

Coal separator Technical Field The utility model relates to the technical field of coal screening equipment, in particular to a coal separator. Background In order to match with market demands, coal factories need to screen coal with different particle sizes, such as lump coal and powdered coal, through a coal separator, so as to meet the diversified demands of industries such as metallurgy, electric power, chemical industry and the like on raw material strength. The coal preparation machine is many including throwing hopper and screening plant, throw the hopper and lie in screening plant's top, pour the coal into the hopper of throwing, coal in the hopper falls into screening plant under the effect of self gravity, lower extreme discharge gate department at throwing the hopper is provided with the valve plate, through the size of valve plate come festival discharge gate, when adjusting unloading speed through the size of control discharge gate, be difficult to the accurate coal unloading speed who controls the hopper of throwing, the discharge gate is less in addition leads to the coal to take place to block up easily in throwing the hopper easily, coal whereabouts speed is too fast when the discharge gate is great, unable fully sieves coal. Disclosure of utility model The utility model aims to solve the technical problems that the existing coal separator can easily cause coal to be blocked in a charging hopper or the coal falling speed is too high by adjusting the size of a discharge hole of the charging hopper so as to be incapable of fully screening the coal. In order to solve the technical problems, the utility model aims to provide a coal separator which comprises a mounting frame, a first screening screen, a feeding hopper, a feeding impeller and a driving device; The first screening screen plate is connected to the mounting frame and is obliquely arranged up and down; The feeding hopper is connected to the mounting frame and is provided with a discharge hole, and the discharge hole is positioned above the higher end of the first screening screen plate; The feeding impeller is rotationally connected to the mounting frame or the feeding hopper, the feeding impeller is positioned above the higher end of the first screening screen plate, and at least part of the feeding impeller is positioned in the discharge hole; The driving device is connected to the mounting frame or the feeding hopper and is in transmission connection with the feeding impeller. The coal separator also comprises a second screening screen plate and a discharge impeller, wherein the second screening screen plate is arranged on the mounting frame and is positioned below the first screening screen plate, and the discharge impeller is rotationally connected to the mounting frame and is positioned between the second screening screen plate and the first screening screen plate. As a preferable scheme, the driving device comprises a first motor, a first belt wheel and a second belt wheel, wherein the first motor is connected to the mounting frame, the output end of the first motor is connected with the discharging impeller and the first belt wheel, the second belt wheel is connected with the feeding impeller, and the second belt wheel is in belt transmission with the first belt wheel. As a preferable scheme, the upper end of the feeding hopper is connected with a spray header, and the spray header is provided with a spray port which is arranged towards the feeding port of the feeding hopper. Preferably, the coal separator further comprises a reciprocating lifting device, and the mounting frame is arranged on the reciprocating lifting device. As a preferable scheme, the reciprocating lifting device comprises a base, a first lifting mechanism and a second lifting mechanism; The mounting frame is provided with a first direction and a second direction which are vertically arranged, and the lower end of the first lifting mechanism and the lower end of the second lifting mechanism are connected with the upper ends of the two sides of the base in the first direction; the upper end of the first lifting mechanism and the upper end of the second lifting mechanism are connected to the lower ends of the two sides of the mounting frame in the first direction, the first lifting mechanism is provided with a first opening penetrating along the first direction, and the second lifting mechanism is provided with a second opening penetrating along the first direction; The coal separator also comprises a receiving tray, wherein the receiving tray is arranged on the base and positioned below the mounting frame, and the receiving tray is arranged in the first opening and the second opening in a penetrating way. The reciprocating lifting device further comprises a first sliding piece, a second sliding piece and a driving mechanism, wherein the first sliding piece and the second sliding piece are connected to the base in a sliding manner along the first direction, a