Study and application on mine clean mining technology

Based on describing the environmental pollution by mining and the concept of mine clean mining technology, we further explained the technological principle and process with paste backfilling, and described the constitutes of filling material and its characteristic, the constitutes of paste backfilling system and its process in detail. What is more, this paper summarized the technological characteristic and the scope of application of paste backfilling. Finally, cooperating with a practical engineering in Daizhuang Mine, it analyzed the concrete implement process and proved the applied effect of the paste backfilling. The results show that paste backfilling mining is an effective approach to settle damage caused by coal mining to water resources, land resources, building resources. Compared with other approaches, it has some advantages, such as high security, high recovery ratio, and environment friendly, and moreover, the surface subsidence can be controlled effectively, but also solid waste, such as coal gangue, can be used as a resource with paste backfilling. This method is worth to be applied and popularized as a mine clean mining technology.