1. The technology of filling the goaf by dry tailings of tailings solves the problem of environmental pollution, potential safety hazards and occupation of a large amount of land caused by tailings discharged from traditional tailings.
2. After the tailings are concentrated and dehydrated, the dry discharge can not only save the construction cost and conventional maintenance cost of the traditional tailings pond, but also make full use of the self-flowing backwater, and can also greatly save the floor space and eliminate the tailings pond. Security risks. In addition, in the mine production process, it can eliminate the safety hazards of the goaf, save safety investment, rehabilitate the restoration of the landform, save the environmental management funds, be conducive to geological environment protection, and realize waste replacement.
3. The equipment, technology and process adopted by the tailings dry discharge process are innovative, opening up a new way for the tailings stacking and integrated treatment of the goaf.
4. Less investment and greater efficiency. After calculation, the tailings dry row is used to fill the gob area, saving fixed assets investment, saving safety management funds, ecological environment management funds, energy-saving and emission reduction and tailings pond maintenance costs.
Analysis of Current Situation of Tailings in China
As of 2007, the total amount of tailings in the country has reached 8.046 billion tons. In 2007 alone, 1 billion tons were discharged. The massive stockpiling of tailings has brought many problems to the country’s resources, environment, safety and land. However, the pressure is high, and the potential for development and utilization is also great.
At present, the problem of comprehensive utilization of tailings in China exists in the low utilization rate of tailings. In many areas, tailings still lack the awareness of dry discharge treatment; the awareness of tailings pollution prevention is thin, which hinders the effective development of relevant pollution control work; Insufficient technical investment in tailings dry discharge treatment.
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