Hard rock bypass crushing system of autogenous mill

Abstract

The invention relates to a hard rock bypass crushing system of an autogenous mill. The system comprises an autogenous mill feeding belt type conveyor and the autogenous mill. The system is characterized in that a double-layer vibrating sieve is arranged below an ore discharge hopper of the autogenous mill; a hard rock chute and a hard rock bypass crushing system body are arranged on the side surface of an upper-layer sieve of the double-layer vibrating sieve; the hard rock bypass crushing system body comprises an on-sieve hard rock discharging belt type conveyor, a hard rock transfer belt type conveyor, a hard rock bypass belt type conveyor, a hard rock crushing feeding bin feeding belt type conveyor, a hard rock crusher feeding belt type conveyor, a hard rock crusher and a crushed product belt type conveyor connected sequentially. The system is simple, convenient to maintain, high in operability, free from standby application of the crusher, low in investment and capable of conveying hard rocks to a hard rock crushing system and directly returning the hard rocks to the autogenous mill for autogenous grinding during maintenance of the crusher, so that the recovery rate of ore is increased, and the processing capacity of the autogenous mill is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of cobblestone crushing in mineral processing plants, in particular to a self-grinding cobblestone bypass crushing system. Background technique [0002] Since the autogenous mill adopts the method of ore impacting and grinding each other, the crushing ratio of the autogenous mill is the largest among all crushing equipment. Using the autogenous mill, the coarsely crushed ore can be directly fed into the autogenous mill, and the closed-circuit products of the autogenous mill can directly enter the mill, so the use of the autogenous mill eliminates the need for intermediate and fine crushing operations, saving equipment and civil engineering investment, and the use of self-grinding machine does not need to add grinding media, which reduces the operating cost of the operation. Therefore, autogenous mills are more and more widely used in beneficiation to replace medium and fine crushing operations. The feeding...

AI Technical Summary

Problems solved by technology

Since the operation rate of the crushing equipment for stubborn stones is lower than that of the self-grinding machine, it is generally necessary to adopt the method of one worker and one preparation for the crushing of stubborn stones, but this method has a large crushing workshop, high investment in civil engineering, and high investment in equipment.

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