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Device and method for crushing ores by pressure-relief gas explosion

A technology for ore crushing and ore crushing, which is applied in the field of pressure relief gas explosion crushing ore devices, can solve the problems of high energy consumption, high cost, and many processes, and achieve the effects of low energy consumption, few process links, and huge economic benefits

Active Publication Date: 2016-09-07
HENAN POLYTECHNIC UNIV
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Problems solved by technology

It can be seen that the ore crushing process requires multiple processes, and each process requires special equipment, which leads to high cost, many processes, and high energy consumption.

Method used

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  • Device and method for crushing ores by pressure-relief gas explosion

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Embodiment Construction

[0024] Such as figure 1 As shown, the pressure relief gas explosion crushing ore device of the present invention includes a gas injection system 1, a pressure relief crushing system 2 and a crushed ore collection system 3, and the gas injection system 1 is connected to the air inlet of the pressure relief crushing system 2 through a gas injection pipe 4 , the discharge port of the pressure relief crushing system 2 is connected with the feed port of the crushed ore collection system 3 through a pressure relief pipe 5;

[0025] The gas injection system 1 includes a high-pressure gas cylinder 6, the gas outlet of the high-pressure gas cylinder 6 is connected to the air inlet of the gas injection pipe 4, and the gas injection pipe 4 is provided with a first high pressure gauge 7, a pressure reducing valve 8, and a low pressure gauge in sequence along the air flow direction. 9. The first stop valve 10, the one-way valve 11, the regulating valve 12 and the second stop valve 13;

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Abstract

The invention discloses a device for crushing ores by pressure-relief gas explosion. The device comprises a gas injecting system, a pressure-relief crushing system and a crushed ore collecting system, wherein the gas injecting system is connected with a gas inlet of the pressure-relief crushing system through a gas injecting tube; and a discharge hole of the pressure-relief crushing system is connected with a charge hole of the crushed ore collecting system through a pressure relief tube. The invention further discloses an ore crushing method adopting the device for crushing ores by pressure-relief gas explosion. According to the device and the method, special equipment is used to manually generate pressure-relief gas explosion, and the ores are crushed by utilizing high tensile stress generated during pressure relief of gas explosion; the tensile strength of the ores is much lower than compressive strength and shearing strength of the ores, so that the energy consumption for crushing the ores is low and the process links are less, and therefore, great economic benefits are brought to the industries such as ore dressing and metallurgy.

Description

technical field [0001] The invention belongs to the technical field of ore crushing, and in particular relates to a pressure-relieving gas explosion crushing device and method. Background technique [0002] The process of crushing ore is the process of gradually reducing the particle size of ore. The smaller the particle size, the more sufficient the dissociation of useful mineral particles, and the better the separation effect in the future. Therefore, the process equipment and operation management of the ore crushing operation in the concentrator are important links that affect the technical and economic indicators. Ore crushing and grinding operations often account for the largest proportion of equipment investment, production costs, electric energy water pumps and steel consumption: about 60% of equipment costs, 40-60% of production costs, 50-65% of power consumption, and 50% of steel consumption. above 50. [0003] Ore crushing is generally carried out in stages, fir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C19/06
CPCB02C19/06
Inventor 袁瑞甫李怀珍乔卿付魏晓刘银先侯志强
Owner HENAN POLYTECHNIC UNIV
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