Underground mechanised continuous mining method
A mining method and mining technology, which is applied in the continuous mining of underground mines and the field of underground mining of hard materials, can solve problems such as dilution and achieve the effect of improving economic benefits
Active Publication Date: 2019-03-12
SHANGHAI BRANCH TIANDI SCI&TECH CO LTD +2
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[0005] The present invention aims to provide an underground mechanized continuous mining method, which can solve the serious dilution problems caused by the mixing of different-grade ore materials in the ore seam, and maintain the original grades of different-quality ore materials, especially the original grade of high-grade ore materials, which is beneficial to maximize profits
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[0024] The invention discloses an underground mechanized continuous mining method, the core of which is to divide the mining wall of the working face into different layered regions (approximately extending horizontally) strip), "layered" conforms to the natural characteristics of mineral material distribution, so the layered area is basically divided according to the natural distribution characteristics of mineral materials, and then the mining wall of the working face is artificially divided into one or more Each working section is a small working face mining wall unit. When mining, the drum type mining machine 9 is used to cut in from the beginning of the working face, advance along the working face until it reaches the terminal, and carry out mining one by one in the process of mining. In each working section, mining is carried out area by area according to the order of mineral grades from high to low. .
[0025] Depending on the thickness of the ore layer and the diameter...
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The invention relates to an underground mechanised continuous mining method. The method comprises the following steps: detecting components of ore materials of ore body on a working face, dividing anore mining surface of the working face into different lamellar areas according to quality grades of the ore materials, horizontally dividing the ore mining surface of the working face into one or moreworking sections, mining the working sections one by one from a starting end to a finishing end of the working face by using a drum type mining machine, mining areas one by one in each working section in a sequence from high to low according to the quality grades of the ore materials, only retaining the top lowest-grade ore materials and bottom steps in each working section, then enabling the mining machine to return to the starting end from the finishing end, and mining the top lowest-grade ore materials and the bottom steps of the working sections one by one at a time in the process. The underground mechanised continuous mining method provided by the invention is capable of respectively mining the ore materials with different qualities in the same working face; the mining profits are greatly increased; especially, the mining economy of hard materials with different quality grades is obviously improved.
Description
technical field [0001] The invention relates to an ore-dropping ore dressing method, which belongs to an underground continuous mining method and can be used for underground mining of hard materials. Background technique [0002] Layered and segmented mining is proposed in the field of open-pit mining, mainly for thicker ore seams. Because the quality of mineral materials in different sections of different ore layers varies greatly, unified mixed mining will lead to serious mineral material dilution rate, high cost of refining beneficial components, and low mining cost. The benefit is very low, and different layers and different sections are mined separately and put into storage for refining, which can greatly increase the benefit of the enterprise. [0003] The existing open-pit layered and segmented mining is mainly completed by buckets, scrapers and other working face equipment supporting automobile transportation, etc., which has a large space and is easy to operate. Ho...
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IPC IPC(8): E21C41/16
CPCE21C41/16
Inventor 章立强貟瑞光吴志海胡璟宋振郭岱顾恩洋王振乾董超胡滔周常飞史春详金丹华高占峰沈胜超杜尊重朱承才顾英龙王兆胜
Owner SHANGHAI BRANCH TIANDI SCI&TECH CO LTD