排土场废弃资源回收利用技术研究与实践
The research and practice of the technology of reclaiming and utilizing dry-dressing ore from the earth-disposing fields
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摘要: 随着我国钢铁业的持续升温,国内矿产资源紧张的矛盾越来越突出,矿石价格快速增长。某矿作为老矿山,一方面在采矿生产中减少矿石损失,提高回采率。通过不断的管理和科技创新,多种途径组织回收利用界外边角矿体、隐伏的盲矿体以及挂帮残留矿体等,有效提高矿产资源的利用率,取得较好的经济效益,另一方面,积极勘察排土场资源,转变观念,对老排土场重新规划,实施矿石回收工程。为最大限度利用废弃资源,通过对河东排土场重新规划,实施矿石干选回收工程。经过系列设计研究,2007年在河东排土场陆续建成投产四条粗选生产线,对过去混杂在岩石的矿石资源进行干选回收。本文对某矿排土场矿石干选回收工程的研究与成功实践进行介绍,为磁铁矿山企业进行排土场废弃资源回收提供了可借鉴经验。Abstract: Along with the continual rise of the national iron and steel industry, the conflicts of domestic mineral resources become more and more intense, and the prices of ore are growing rapidly.There is an old mine, who makes two hands of attempt to utilize the mineral resources. On one hand, it reduces the ore losses in the mining production, and improves the reclaiming rate. The old mine innovates in management and technologies continually; and in a number of channels, it organizes reclaiming and utilizing the ore bodies such as the fragmentary ore bodies of the out-borderlands, the insidious blind ore bodies, and the liked residuary ore bodies. Through the measures above, the old mine effectively improves the utilization rate of mineral resources, and achieves better economic benefits. On the other hand, the old mine actively prospects the resources of the earth-disposing fields; through changing the old concept, it re-plans the old earth-disposing fields, and practices the projects of reclaiming ore. The actions above maximize the use of abandoned resources. Through replanning the Hedong earth-disposing field which is being used, Said mine practices the projects of reclaiming dry-dressing ore. After a series of studies and designs, in 2007 in Hedong earth-disposing field, four rough-dressing production lines were completed and put into production; the production lines were used to reclaim and dry-dress the former mineral ore that mixed with rocks. This passage will introduce you the research and successful practice of the project of reclaiming dry-dressing ore from the earth-disposing fields. Said project provides referential experience for magnetic mine enterprises to reclaim the abandoned resources of earth-disposing fields.
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