Ore crushing technique

Abstract

The invention discloses an ore crushing technique, comprising the following steps: carrying out coarse crushing on crude ore so as to obtain coarse crushed ore; utilizing dual-layer sieves to carry out two-stage sieving on the crude ore so as to obtain upper ore of the upper-layer sieve, upper ore of the lower-layer sieve and lower fine ore of the lower-layer sieve; carrying out intermediate crushing on the upper ore of the upper-layer sieve so as to obtain intermediate crushed ore; carrying out fine crushing on the upper ore of the lower-layer sieve; and returning and conveying the intermediate crushed ore and the fine crushed ore to the dual-layer sieves by a conveying machine to carry out sieving. According to the ore crushing technique, a device for implementing the technique has the advantages of simple structure, less equipment quantity, low cost and high efficiency.

Description

technical field [0001] The invention belongs to the technical field of ore dressing, in particular to an ore crushing process. Background technique [0002] In the traditional beneficiation process, the raw ore extracted from the mine usually goes through multiple crushing processes, and then undergoes grinding and sorting. The traditional ore crushing process is usually divided into several processes, which are carried out in different workshops. For example, the raw ore is coarsely crushed by the coarse crusher in the coarse crushing workshop, and then transported to the screening workshop for screening. When there are many grades, there are usually two processes of pre-screening and inspection screening. Different screening machines are usually used for pre-screening and inspection screening. The coarse crushed ore is pre-screened first, and the pre-screened ore is transported to the medium and fine crushing workshops for secondary crushing through the secondary crusher....

AI Technical Summary

Problems solved by technology

[0003] Coarse crushing equipment, screening equipment, medium and fine crushing equipment of the traditional crushing process need to be installed in different workshops, so the products of each stage need to be transported between the workshops according to the needs, which reduces the efficiency and wastes manpower and material resources

Moreover, the number of equipment is large, the floor space is large, the energy consumption is large, the investment is high, and the cost increases

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