Coal-recrement separator of underground breaking screen
A coal gangue separation, crushing and screening technology, applied in the direction of grain processing, etc., can solve the problems that the heavy medium gangue selection process cannot be applied underground, the process system is complex, and the production cost is high, so as to prevent surface subsidence, good separation effect, reduce The effect of shipping costs
Inactive Publication Date: 2012-01-04
CHINA UNIV OF MINING & TECH +1
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Problems solved by technology
The main disadvantages are complex process system, serious equipment wear, large investment and high production cost
And its complicated process also makes it impossible to apply the heavy medium gangue in the underground.
Method used
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[0010] The present invention will be further described below in conjunction with the embodiment in the accompanying drawings:
[0011] The underground crushing and screening coal and gangue separator of the present invention is mainly composed of a casing 3, a rotary dial wheel 2, an impact breaker 5, an elastic rod screen 7, an underframe 8, a crushing transmission device, and a materials transmission device. The top of the casing 3 is provided with a hopper 4, and its lower part is provided with a gangue discharge port 1. The bottom of the hopper 4 in the casing 3 is provided with a counter-attack breaker 5 that is driven by a crushing transmission device and rotates clockwise. There are multiple hammerheads of the breaking hammer 5, which are set according to the actual needs of the site. The drive shaft of the impact breaker 5 is supported in the bearing seat of the housing 3, and the drive shaft is connected with the speed-regulating explosion-proof motor 10 on the bracke...
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The invention relates to a coal-recrement separator of an underground breaking screen, comprising a shell, a feeding hopper and a recrement discharging opening, wherein a counter-attacking breaking hammer is arranged below the feeding hopper in the shell and a counter-attacking plate is arranged on the inner wall of the shell at the rotation direction side of the counter-attacking breaking hammer; and a rotary type material-pushing wheel is arranged at the recrement discharging opening side in the shell, an elastic rod screen corresponding to the positions of the rotary type material-pushing wheel and the counter-attacking breaking hammer is slantwise arranged on the under-frame in the shell, two sides of the elastic rod screen are arc-shaped, and the bracket of the external lower part ofthe under-frame is respectively provided with an explosion proof motor for driving a material-pushing transmission device and an explosion proof speed regulation motor for driving a breaking transmission device. In the invention, coal recrements can be directly separated in underground so that the big recrements can be directly used for filling a goaf without coming out of a well, thereby reducing transport costs, saving land occupation on the ground, preventing ground collapse, saving environmental management costs, reducing environmental pollution and saving underground and surface transport quantities of the recrements. The coal recrements separator has the advantages of simple and compact apparatus, convenient assembling and disassembling and favorable separation effect.
Description
technical field [0001] The invention relates to a crushing and screening coal and gangue separator, in particular to a crushing coal and gangue separator which is directly applied to the separation of lump coal and gangue in coal mines. Background technique [0002] Underground sorting of coal gangue is an indispensable link in the coal mine production process, especially under the premise of emphasizing the implementation of green environment production and realizing sustainable development, this production link is particularly important. At present, the separation of coal and gangue, the common separation methods are winnowing, gamma ray separation, jigging separation, dense medium separation. Among them: air separation is to use the different density of coal and gangue to separate coal and gangue by the buoyancy of wind, which is suitable for areas with poor water resources. The investment is large, the floor area is large, the dust treatment equipment is relatively larg...
Claims
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IPC IPC(8): B02C13/04B02C13/284B02C13/30
Inventor 李建平杜长龙程舒艳张佳佳姜浩
Owner CHINA UNIV OF MINING & TECH