Microwave-mechanical fluidized mining system and mining method for metal ore

Abstract

A metal ore microwave-mechanical fluidized mining system and mining method, including a microwave pre-splitting mechanical mining system, a microwave separation system, a high-power microwave focusing melting system and a goaf; The waste mixture is transported to the microwave separation system through the conveyor I and hoist on it, the separated ore is transported to the high-power microwave focusing melting system, and the separated waste rock is transported to the gob filling through the conveyor V. Microwave pre-splitting mechanical mining is used to replace the traditional blasting mining method, which increases the speed of excavation and avoids the impact of blasting on the stability of surrounding rock. The beneficiation process is simplified, the traditional crushing, grinding, and flotation processes are reduced, and the consumption of non-renewable resources such as steel and chemical solutions is greatly reduced. The microwave energy mainly used can be converted into renewable energy.

Description

technical field [0001] The invention belongs to the technical field of metal ore mining, and in particular relates to a metal ore microwave-mechanical fluidization mining system and a mining method. Background technique [0002] The essence of metal ore mining is to crush ore and extract useful minerals. Traditional metal ore mining process: Drilling and blasting method is used to drill and blast large pieces of ore, and then they are transported to the ground for crushing, grinding and flotation of the ore, and the useful minerals are selected and transported to the smelter. Aggregate is transported on the ground to fill the mined-out area. [0003] The traditional mining process from mining to beneficiation is cumbersome, with long transportation routes and high costs. In terms of mining technology, the drilling and blasting method is slow in construction and will have a great impact on the stability of surrounding rocks. Construction safety poses a huge threat. Especia...

AI Technical Summary

Problems solved by technology

[0003] The traditional mining process from mining to beneficiation is cumbersome, with long transportation routes and high costs. In terms of mining technology, the drilling and blasting method is slow in construction and will have a great impact on the stability of surrounding rocks. Construction safety poses a huge threat

Especially in the deep mining of metal mines, the influence of high ground stress and high temperature will further increase the difficulty and cost of traditional mining processes

Secondly, transporting filling material from the ground to the goaf will increase the cost of filling materials and transportation

In the traditional beneficiation process, the ore crushing and grinding work consume a lot of energy, especially the effective utilization rate of the grinding work is only 1%, and a large amount of steel loss will be generated, and the subsequent flotation work will also consume a large amount of chemical solution

For low-grade ores, only a small amount of useful minerals can be extracted in the end, and the transportation, crushing and flotation of most waste rocks waste huge costs

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