Full tail mortar quick concentrating technique in vertical sand cabin
A vertical sand bin and full tailings technology, which is applied in the field of mining, can solve the problems of low production efficiency, hardening of the bottom of the bin, and small processing capacity of full tailings, and achieve the effect of large production capacity and continuous pulping
Inactive Publication Date: 2006-01-11
CENT SOUTH UNIV
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Problems solved by technology
The concentration and dehydration process requires large investment, high energy consumption, frequent filter cloth replacement, complex process, small tailings treatment capacity, and high concentration cost
[0003] At present, the vertical sand bin is mainly used for graded tailings filling, that is, the coarse tailings mortar after the whole tailings mortar of the dressing plant has been graded to remove -37μm is injected into the vertical sand bin for underground filling, because the whole tailings mortar is used in the vertical sand The natural
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A fast concentrating technology of whole tailings in vertical tailing bunker for mine filling includes such steps as preparing efficient flocculant NPA-060 and coagulating aid PAC or BAC, proportionally adding NPA-060 to the whole tailings discharged by dressing plant, and proportionally adding PAC or BAC when the characteristics of tailings slurry begins to change.
Description
Technical field: [0001] The invention relates to the field of mine mining, in particular to a rapid concentration process for full tailings when a vertical sand bin is used for mine filling. Background technique: [0002] A key technology of the fill mining method is to use the filling material to deal with the empty area. Due to the advantages of high recovery rate and safe operation, it is widely used in underground mines. At present, when the full tailings of the concentrator are used for mine filling, they must first be dehydrated and concentrated to increase the quality concentration. That is, it is concentrated and dehydrated through a vacuum belt filter or other mechanical dehydration methods, and the moisture content of the dehydrated filter cake is about 20-22%. The concentration and dehydration process requires large investment, high energy consumption, frequent filter cloth replacement, complex process, small tailings processing capacity, and high concentration ...
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Inventor 陈昌民王新民厉彦平张钦礼李耀武彭云琪李绍元郭昌槐
Owner CENT SOUTH UNIV
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