Characteristics of Full Tailings Filling Process
Release time:
2019-07-03
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characteristics of the whole tailings filling process. Domestic tailings are filled with sand, often the amount of sand is insufficient, overflow tailings can not be dammed, need quarrying damming, high cost, fine-grained overflow tailings easy to environmental pollution. The use of full tailings filling can avoid and improve the above problems.
Many copper mines in China have used full tailings to fill the goaf, and achieved good results. The difficulty of full tailings filling lies in the settlement and dehydration of fine particles. Under ideal conditions, high-concentration uniform fluid can be made on the ground to transport underground without underground dehydration. At present, it is mainly used for subsequent filling of goaf.
An example of a full-tailed thixotropic flow delivery. The Archisai lead-zinc mine in the Soviet Union uses high-concentration thixotropic full tailings cemented filling materials for transportation, and the -0.074mm grain content in the full tailings is70-100 percent. The weight solid-liquid ratio is 80:20 to 83:17. Cement per cubic meter of filling material100To 140kg, full tailings 1550-1600kg, water 400-420 litres. After stirring, the slump of the filling material is about 10-20cm, which has good delivery performance. The filling line is five to seven. With a diameter of 140mm pipeline sent to the well. The production capacity is about 12 cubic meters per hour. In this way, the filling material does not need to be dehydrated, so that the structure of the mining method and the recovery process can be simplified, and under the condition of changing the strength of the filling body, a large amount of cement can be saved, from the original non-homogeneous flow, the cement consumption during transportation can be reduced to 200kg.120Kilogram per cubic meter.
If you need to know more about the full tailings filling station. Welcome to call Yu Tai Heavy Industry Hotline 18774995599 to get in touch with us.
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