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Method and device for separating coal and gangue underground by using high-speed belt conveyor

A belt conveyor and conveyor technology, applied in solid separation, chemical instruments and methods, classification, etc., can solve problems such as waste of land resources, environmental hazards, mudification, etc., achieve significant economic and social benefits, and reduce work The effect of small amount and space

Active Publication Date: 2021-05-28
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And this has many disadvantages and hazards. It takes a lot of extra energy to lift the gangue from the underground; it also consumes a lot of resources in the coal washing process; and the separated coal gangue not only wastes land resources, but also spontaneous combustion, rain, and mud serious harm to the environment

Method used

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  • Method and device for separating coal and gangue underground by using high-speed belt conveyor
  • Method and device for separating coal and gangue underground by using high-speed belt conveyor
  • Method and device for separating coal and gangue underground by using high-speed belt conveyor

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Embodiment Construction

[0054] Such as figure 1 As shown, the present invention includes a horizontal constant speed belt conveyor and an inclined high speed belt conveyor. Among them, the horizontal constant-speed belt conveyor 2 transports the raw coal 1 from the working face, and when the raw coal 1 moves to the right to the material outlet 3 of the horizontal constant-speed belt conveyor, it will fall; the inclined high-speed belt conveyor 4 is located below the horizontal constant-speed belt conveyor 2. When the raw coal 1 falls on the inclined high-speed belt conveyor 4, it will slide relative to the conveyor belt. acceleration. Due to the different friction coefficients between coal, gangue and the conveyor belt, the upward frictional forces on the conveyor belt are different, so the accelerations of the two are also different; There are 5 material outlets of the type conveyor, and the coal and the gangue have different speeds; at the next moment, the coal and the gangue will both do obliqu...

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Abstract

The invention provides a method and device for separating coal and gangue underground by using a high-speed belt conveyor. The device mainly comprises two belt conveyors, one of the two belt conveyors is a belt conveyor running at normal speed and is mainly used for transporting the coal and the gangue from a working face, and the other one of the two belt conveyors is a belt conveyor running at high speed and mainly aims to accelerate the coal and the gangue. The device for separating the coal and the gangue underground has the advantages of being convenient to install, simple in structure, safe and reliable in operation, small in occupied space and the like; and the gangue can be effectively prevented from going out of a mine, and a goaf can be directly backfilled with the gangue.

Description

technical field [0001] The invention relates to a device for separating underground coal and gangue, which can be directly applied to the separation of underground coal and gangue. Background technique [0002] In the process of coal mining, due to the mixing of a large amount of gangue in the top and bottom boards and coal seams, the mined coal contains a large amount of gangue. These coals cannot be used directly and need to be treated with gangue removal. [0003] In the traditional coal mining process, the coal containing gangue is treated by screening it in a coal preparation plant after being transported out of the ground. And this has many disadvantages and hazards. It takes a lot of extra energy to lift the gangue from the underground; it also consumes a lot of resources in the coal washing process; and the separated coal gangue not only wastes land resources, but also spontaneous combustion, rain, and mud environment, causing serious harm to the environment. [0...

Claims

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Application Information

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IPC IPC(8): B07B13/11B07B13/14
CPCB07B13/11B07B13/14
Inventor 王鲜霞樊一江王朋飞白锦文戚庭野郝晨良文晓泽刘佳男刘镇书陈可夯吴妍张海龙王天勋高梦男
Owner TAIYUAN UNIV OF TECH
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