Can filling mining solve the problem of mine tailings treatment?

Release time:

2018-09-28

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Author:

Yutai Heavy Industry
At present, the amount of tail sand produced in China's mining is huge, which brings a series of environmental safety hazards. However, mineral processing enterprises still face many practical problems in the process of using traditional mining mode for mine tailings treatment. How to objectively understand the current situation of tailings treatment in China?mine tailings treatmentWhat level of technology has reached? What measures need to be taken to truly eliminate the environmental safety hazards caused by tailings?
 
矿山尾砂处理
 
China is a large mining country with rich mineral resources, and there are about 165000 mining enterprises of various types in the country. According to incomplete statistics, the annual tailings discharge is as high as 1.5 billion tons. How to properly handle such a huge amount of tailings has always been an urgent problem for the mining industry.
 
At present, mine tailings treatment methods are divided into two types, one is to use ground tailings storage, the tailings produced by the concentrator are transported to the tailings storage after dense or pressure filtration, and the tailings storage is divided into two methods: dry stacking or wet stacking; the other is used for underground goaf filling, and the filling slurry formed by mixing the concentrated tailings directly or with cementitious materials is transported to the underground backfilling goaf, there are two ways to transport the filling slurry: gravity flow or pumping. In recent years, the domestic tailings disposal mainly adopts the treatment method of underground filling and tailings storage.
 
At present, the tailings storagemine tailings treatmentThe process has gradually developed from the storage of low-concentration tailings to the storage of high-concentration tailings or tailings pressure filter dry heap technology, and the tailings treatment process for backfilling of underground goaf has also gradually developed from low-concentration graded tailings filling to full tailings high-concentration filling technology.
 
矿山尾砂处理
 
Because the new tailings treatment process such as tailings filter press dry reactor, high concentration tailings discharge and high concentration tailings filling technology has the characteristics of environmental protection, safety and economy, it has become the development trend of tailings treatment.
 
In recent years, our countryFull tailings filling systemResearch and development efforts have been increased, personalized filling technology and process research have been carried out for different mine tailings, and a high concentration filling equipment with independent intellectual property rights has been formed. Research and development of deep cone paste thickener, filling industrial pump, high concentration strong mixing barrel, pipeline control valve group and other core components, has also reached the international leading level.

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Real-time information

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