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A plasma crushing device and method for assisting underground gangue filling

A technology of plasma and crushing device, which is used in filling materials, safety devices, earth-moving drilling and mining, etc., can solve the problems of uneven wear of the jaw plate, low crushing efficiency, complex structure, etc., and achieves high crushing efficiency and processing capacity. Crushing efficiency, destructive effect

Active Publication Date: 2022-03-04
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Jaw crushers achieve crushing by periodically shaking the jaw plate to crush materials, but it is easy to cause uneven wear of the jaw plate due to uneven ore feeding, and the crushing efficiency is low
The cone crusher can use the inner cone to move eccentrically around the outer cone to crush the material between the two cones, but there are disadvantages such as complex structure, high cost, high fuselage, and difficult maintenance.

Method used

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  • A plasma crushing device and method for assisting underground gangue filling
  • A plasma crushing device and method for assisting underground gangue filling
  • A plasma crushing device and method for assisting underground gangue filling

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] Such as Figure 1 to Figure 3 As shown, a plasma crushing device for assisting underground gangue filling includes a crushing roller 4, a crushing device casing 5, a plasma discharge vessel 6, a plasma generating device 17, and a water circulation unit 27. The upper surface of the crushing device casing 5 is right A feed inlet 1 is provided on the side, and a first inclined coarse screen 2 is arranged below the feed inlet 1. A guide plate 3 is arranged ...

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Abstract

The invention belongs to the technical field of mineral processing, and discloses a plasma crushing device and method for assisting underground gangue filling. The gangue is pre-screened by the first inclined coarse screen, the smaller gangue is crushed by the crushing roller, and the larger gangue enters the plasma discharge vessel, and is processed under the action of the plasma and its shock wave generated by the pulse discharge. Crushing, after the crushed waste rock is screened by the second inclined fine screen, it is collected separately according to whether it meets the crushing requirements. Based on the use of crushing rollers, the present invention uses high-voltage electric pulse discharge technology to make up for the disadvantages of ordinary roller crushers that are limited to intermediate crushing and fine crushing, and the toothed rollers are easy to wear, and can crush better and more efficiently with higher hardness and larger gangue, assisting gangue to fill the goaf underground.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a plasma crushing device and method for assisting underground gangue filling. Background technique [0002] Coal is the main energy source in my country, and its demand remains high. With the increase of coal mine mining depth, the transportation cost and difficulty of lifting coal gangue are also increasing sharply. In addition, considering that coal gangue is easy to form surface solid waste to pollute the environment after it is lifted to the ground, the best way to deal with coal gangue is to crush it underground and use it for goaf filling. [0003] The crushing methods of coal rock mass can be divided into mechanical energy crushing and non-mechanical energy crushing. Among them, the new technology of rock crushing using high-voltage electric pulse discharge belongs to non-mechanical energy crushing. The use of high-voltage electric pulse discharge to crush ga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C4/08B02C19/18B02C21/02B02C23/14B02C23/16E21F15/00
CPCB02C4/08B02C19/18B02C21/02B02C23/14B02C23/16E21F15/00B02C2023/165B02C2019/183
Inventor 林柏泉钟璐斌张祥良倪祯
Owner CHINA UNIV OF MINING & TECH
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