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Crushing equipment

A technology of crushing equipment and equipment, applied in the direction of swirling device, grain processing, etc., can solve the problems of reducing economic value and damage of large graphite flakes.

Pending Publication Date: 2020-12-01
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These indiscriminate grinding processes will cause a large number of large graphite flakes to be damaged, reducing economic value

Method used

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  • Crushing equipment

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Embodiment Construction

[0020] 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.

[0021] The purpose of the present invention is to provide a crushing device, which can effectively separate dissociated large flake graphite in time, and achieve the purpose of maximally protecting the large flake graphite.

[0022] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific emb...

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Abstract

The invention discloses crushing equipment. The crushing equipment comprises an air inlet pipe, a trapezoidal electrode pair group and a winnowing pipe. Each trapezoidal electrode pair comprises two trapezoidal electrodes. One inclined surface of one trapezoidal electrode of each trapezoidal electrode pair is opposite to one inclined surface of the other trapezoidal electrode to form a trapezoidalgroove with openings at two ends. The sectional area of the upper opening part of the trapezoidal groove is larger than that of the lower opening part. The lower opening end of the winnowing pipe iscommunicated with the upper opening part of the trapezoidal groove, and the lower opening part of the trapezoidal groove is communicated with one end of the air inlet pipe. When the crushing equipmentis used for crushing the graphite raw ore, a high-voltage short pulse is applied to graphite raw ore through the electrode pairs; and according to the principle of selective crushing of crystal interfaces of target minerals and impurity minerals, dissociated large crystalline flake graphite can be effectively and timely sorted out on the basis of different drag forces in an airflow field caused by the difference between flake graphite flake structures and gangue particle shapes, so that the purpose of protecting the large crystalline flake graphite to the maximum extent is achieved.

Description

technical field [0001] The invention relates to the field of high-voltage short-pulse crushing, in particular to crushing equipment. Background technique [0002] Most of the existing graphite ore sorting adopts the method of multi-stage grinding and multi-stage flotation. During the process from graphite raw ore to graphite concentrate, ball mills or rod mills are used for several times of grinding. These indiscriminate grinding processes will cause a large number of large graphite flakes to be damaged, reducing economic value. Contents of the invention [0003] The purpose of the present invention is to provide a crushing equipment, which can effectively separate large flake graphite in time, avoid over-grinding of dissociated flake graphite, and achieve the purpose of maximally protecting the large flake graphite. [0004] To achieve the above object, the present invention provides the following scheme: [0005] A kind of crushing equipment, the equipment includes: ai...

Claims

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Application Information

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IPC IPC(8): B02C19/18B02C23/30B04C9/00
CPCB02C19/18B02C23/30B02C2019/183B04C9/00
Inventor 李吉辉姜帆田锐马力强黄根朱龙行孙章涵王一徐敏
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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