Search

CN-224208483-U - Coal mine coal dressing double-deck vibration classifying screen

CN224208483UCN 224208483 UCN224208483 UCN 224208483UCN-224208483-U

Abstract

The utility model discloses a coal mine coal dressing double-layer vibration classifying screen, relates to the technical field of coal mine coal dressing, and aims to solve the problem that a feeding mechanism is directly arranged on a main structure of the vibration classifying screen. In vibration screening process, vibration can directly transmit for feed mechanism's part to shorten its life, increase maintenance cost, partial material can be because the too fast and direct screen cloth that slides of speed, it just discharges from the screening machine to select separately fully, product quality's problem has been reduced, including the sorting bucket, there is the hopper bottom the sorting bucket, the sorting bucket is fixed by the landing leg, there is vibrating motor on the sorting bucket, there is the sieve in the sorting bucket, the top of sieve is equipped with the feeder hopper, sorting bucket sliding connection has buffer gear, the both sides of sorting bucket are equipped with the pillar, the feeder hopper passes through slide mechanism and links to each other with the pillar, reach the time of extension colliery on the sieve, ensure that the material obtains abundant sorting, avoid the direct output of unsorted material, show improvement product quality, the resource waste is reduced.

Inventors

  • HUANG SHUNLI
  • HUANG YANJUN

Assignees

  • 河南顺锦机械设备有限公司

Dates

Publication Date
20260508
Application Date
20250407

Claims (6)

  1. 1. The utility model provides a coal mine coal dressing double-deck vibrating classifying screen, includes sorting bucket (1), the bottom of sorting bucket (1) is connected with ejection of compact fill (9), sorting bucket (1) is supported fixedly through landing leg (3), be connected with vibrating motor (4) on sorting bucket (1), be equipped with sieve (5) in sorting bucket (1), the top of sieve (5) is equipped with feeder hopper (2), feeder hopper (2) with be connected with inlet pipe (74) between sieve (5), characterized in that sorting bucket (1) is gone up sliding connection with buffer gear (8) on the lateral wall, the both sides of sorting bucket (1) are equipped with pillar (6), feeder hopper (2) pass through slide mechanism (7) with pillar (6) link to each other, slide mechanism (7) are including slide bar (72), be connected with driving motor (75) on slide bar (72), be equipped with in slide bar (72) by driving motor (75) rotation roller and shifting frame, still include upper and lower (11) and lower (12) are gone up in slide mechanism (111), the sorting hopper (1) is also provided with a locking mechanism (10) limiting the buffer mechanism (8).
  2. 2. The coal mine coal dressing double-layer vibration classifying screen according to claim 1, wherein the buffer mechanism (8) further comprises a folding rod (81) and a stop lever (83), the folding rod (81) comprises a long section and a short section, the stop lever (83) is provided with a plurality of groups, the stop levers (83) are equidistantly arranged on the long section of the folding rod (81), a baffle (82) is connected to the end section of the folding rod (81), and the baffle (82) slides on the outer surface of the classifying hopper (1).
  3. 3. The coal mine dressing double-layer vibrating classifying screen according to claim 2, wherein the classifying hopper (1) is provided with a guide groove with the size matched with the position of the short end of the folding rod (81), and the short end of the folding rod (81) slides in the guide groove.
  4. 4. The coal mine coal dressing double-layer vibration classifying screen according to claim 3, wherein the locking mechanism (10) further comprises a mounting plate (101) and a limiting block (102), the limiting block (102) is fixed on the outer wall of the classifying hopper (1) through the mounting plate (101), the limiting block (102) and the short section of the folding rod (81) are provided with threaded holes which are matched with each other, and the limiting block (102) is detachably connected with the folding rod (81) through a limiting bolt (103).
  5. 5. The coal mine coal dressing double-layer vibration classifying screen according to claim 1, wherein the sliding mechanism (7) further comprises a guide rail (71), two ends of the feed hopper (2) are connected with the sliding rod (72) through connecting blocks, a sliding groove matched with the sliding rod (72) is formed in the guide rail (71), and the sliding rod (72) slides in the sliding groove of the guide rail (71).
  6. 6. The coal mine dressing double-deck vibrating classifying screen according to claim 5, wherein the guide rail (71) and the sliding rod (72) are provided with positioning holes (73) with matched position and size, and the guide rail (71) and the sliding rod (72) are limited by limiting pins.

Description

Coal mine coal dressing double-deck vibration classifying screen Technical Field The utility model relates to the technical field of coal mine coal preparation, in particular to a coal mine coal preparation double-layer vibration classifying screen. Background The utility model discloses a coal mine coal dressing double-deck vibration classifying screen in China published patent CN202223511524.6, through designing a ration feed mechanism that contains step motor control, effectively solved traditional classifying screen coal feeding inhomogeneous, screening inefficiency, screen cloth fragile scheduling problem, it can evenly carry the coal to the screening frame through ration feed mechanism, reduces the impact force of coal to the screen cloth, has improved the effect of screening, but feed mechanism direct mount is on vibration screening's main structure. In the vibration screening process, strong vibration can be directly transmitted to parts of a feeding mechanism, so that the service life of the device is shortened, the maintenance cost is increased, the feeding mechanism is possibly caused to be failed, the stability of the screening process is influenced, in addition, part of materials can directly slide through a screen due to the fact that the speed is too high, and the materials are discharged from the screening machine without being sufficiently separated, so that the screening efficiency and the product quality are reduced, and the resource waste is caused. Therefore, the application provides the coal mine coal dressing double-layer vibration classifying screen to meet the requirements. Disclosure of utility model The application aims to provide a coal mine coal dressing double-layer vibration classifying screen, which aims to solve the problem that a feeding mechanism is directly arranged on a main structure of the vibration classifying screen. In the vibration screening process, strong vibration can be directly transmitted to parts of a feeding mechanism, so that the service life of the vibration screening device is shortened, the maintenance cost is increased, the feeding mechanism is possibly caused to be failed, the stability of the screening process is influenced, in addition, part of materials can directly slide through a screen due to the fact that the speed is too high, and the materials are discharged from the screening machine without being sufficiently separated, so that the screening efficiency and the product quality are reduced, and the problem of resource waste is caused. The double-layer vibrating classifying screen for the coal mine comprises a classifying hopper, wherein the bottom of the classifying hopper is connected with a discharging hopper, the classifying hopper is supported and fixed through supporting legs, the classifying hopper is connected with a vibrating motor, a screen plate is arranged in the classifying hopper, a feeding hopper is arranged above the screen plate, a feeding pipe is connected between the feeding hopper and the screen plate, a buffer mechanism is connected to the side wall of the classifying hopper in a sliding manner, supporting columns are arranged on two sides of the classifying hopper, the feeding hopper is connected with the supporting columns through sliding mechanisms, the sliding mechanisms comprise sliding rods, driving motors are connected to the sliding rods, rotating rollers driven by the driving motors and a shifting frame are arranged in the sliding rods, the screen plate further comprises an upper screen plate and a lower screen plate, a through hole for the buffer mechanism to slide up and down is formed in the upper screen plate, a locking mechanism for limiting the buffer mechanism is further arranged on the classifying hopper, and the time of the screen plate on the upper side of the assembly is prolonged through the cooperation between the components, and the classifying effect of the screen plate is improved. Preferably, the buffer mechanism further comprises a folding rod and a stop rod, the folding rod comprises a long section and a short section, the stop rod is provided with a plurality of groups, the stop rods of the groups are equidistantly arranged on the long section of the folding rod, the end section of the folding rod is connected with a baffle, and the baffle slides on the outer surface of the sorting hopper to prevent fine materials from flowing out. Preferably, a guide groove matched with the position and the size of the short end of the folding rod is formed in the sorting hopper, and the short end of the folding rod slides in the guide groove, so that the position of the buffer mechanism can be adjusted according to requirements. Preferably, the locking mechanism further comprises a mounting plate and a limiting block, the limiting block is fixed on the outer wall of the sorting hopper through the mounting plate, the limiting block and the short section of the folding rod are provided with threaded holes in a