Development Of Cleaner Mining Technology

;metal deposits cleaner mining technology, the research is mine waste disposal and comprehensive utilization of the national" Ninth Five-Year scientific and technological key project.

China has a wealth of metal mineral resources, but the traditional deposit mining technology while access to mineral resources will produce large amounts of waste, these wastes are long-term accumulation of not only the destruction of surface vegetation, destruction of the arable land, and will significantly increase the Earth's surface environment the load. Researchers for metal deposits in the mining process in the three solid waste source, waste rock, tailings and red mud, the use of the principles of industrial ecology and engineering scientific methods, research and development can effectively reduce the volume of output of waste rock open and underground mining technology, mine waste resources of the high concentration tailings filling and red mud cement filling technology and natural graded waste rock cemented filling. Practice has proved that these new metal deposits in cleaner mining technology to minimize the mine waste generation, waste to maximize resources, and a fundamental solution to the environmental disasters that may occur in the process of exploitation of poly metallic problem. The top and bottom of the open and underground joint exploitation in the vertical plane of an ore body at the same time open-pit mining and underground mining, the mining system optimization, internal dumping and open pit bottom is a direct extension of mining technology, has high strength, high efficiency mining and a significant reduction in the volume of output of waste rock advantage, and stripping the waste rock is no longer to the ground emissions within the open pit consumptive solve mine first major solid waste sources of emissions from open-pit mining waste rock.

Tailing is the second largest waste sources in the metal mining process. High concentration tailings extrusion conveying filling technology, through the dense settlement of two full-tailings dewatering, and other major technological process, significantly improves the reliability of the high concentration tailings conveyor system, a significant reduction in investment in infrastructure and production costs, to achieve zero emissions of the resources of all tailings and mine tailings. The red mud is a by-product of alumina production of metal ore, concentrated red mud stacking and surface hazards has become a bottleneck affecting the aluminum industry. Red mud cemented filling technology take full advantage of the activity of red mud and mine filling only low-grade requirements by adding the activator, the red mud-based raw materials to produce mine filling cementing agent with high performance and low cost characteristics, and the fillingThe material is superior to Portland cement. In addition waste natural gradation of stone cemented filling Filling shunt transmission and shower mixing new technology to achieve high efficiency, low-cost natural level with waste rock cemented filling, has opened up an effective technology for the mine waste rock resources via .

It is understood that the research results in verdigris copper mine, the abundance of copper, copper pit tin, bauxite Hutian and will be the East lead and zinc, etc. to promote the application to obtain direct economic benefit of 574 million yuan.

With its high quality products such as Impact stone crusher, Magnetic separator, Secondary cone crusher, Raymond mill, Hammer crusher, Henan Hongxing mining machinery Co.Ltd has ascended in the front rank of the world in the exporting of mining equipments.

by: nicole

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