Meitan kexue jishu (Jan 2023)
Prevention and control of deep dynamic disasters and resources green exploitation in Pingdingshan Mining Area
Abstract
The Pingdingshan mining area mined by China Pingmei Shenma Group is a typical example of deep mining. After 70 years of development, the group always insists on leading production with scientific and technological strength, ensuring safety with technical equipment, deepening its understanding of gas, and has gone through three stages of “passive prevention, active treatment and green use”. The monitoring and warning technology of dynamic disaster can predict the probability of disaster occurrence in advance, and the accuracy of predicting no dynamic disaster can reach 100%. The accuracy rate of power disaster is 80%, so that gas disaster can be prevented and controlled; The efficient anti-reflection extraction technology of gas in low-permeability coal seam reduces the gas treatment cycle from 24 months to 8 months, and the cost of gas treatment for tons of coal is reduced by 60%. The integrated green development and utilization technology of gas “extraction – power generation – refrigeration” can effectively reduce the roadway temperature by 5–10 ℃, increase the gas extraction concentration to 50%, guarantee the mine heating in winter and refrigeration in summer, save 60 000 kW·h of electricity consumption per day, not only eliminate the gas threat, make the mine gas become treasure, but also ensure the national coal supply security. Meet the development needs of the “double carbon” goal. In the future, based on the prevention and control of deep dynamic disasters, the group will actively promote the green utilization of coal transformation, build an industrialization road of safe mining, efficient washing and green transformation of coking coal resources, promote the rapid transformation and upgrading of enterprises, build a leading scientific research and innovation platform in the industry, ensure the security of national energy supply and keep up with the pace of social and economic development.
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