Applicable Technologies In China'S Coal Mines

Coal mining has a long history in China. According to historical records, since the Song Dynasty, China has had a relatively complete coal mining process. Therefore, China's coal mining technology has a very deep foundation. However, with the changing times and economic development, coal mining technology must be oriented to economic construction. In order for coal mining to develop efficiently and efficiently, it is necessary to form a set of effective technical concepts and establish scientific and reasonable coal mining technology methods. Modern coal mining technology has been diversified, but in order to ensure the increase of the unit yield and high output of work, improve the high-yield technology of coal mines, in order to build a safe and efficient technical level, and improve work efficiency, we must continue to explore in practice.

Modern mining technology for hard roof and hard coal seam

Hard roof technology is a control technique that researches the depth and low pressure. Mainly through fast treatment technologies such as directional hydraulic fracturing of rock formations, inclined roofs, etc., in order to improve the recovery rate of top coal mines at any time. And can basically collapse in steps. It is not only conducive to the rapid crushing of top coal, but also ensures the safety in production.

Hard top coal control technology also includes high pressure water injection fracturing technology and top coal deep hole blasting treatment technology. Supporting equipment technology for fully mechanized top coal mining technology with poor roofing and large block size. The research is beneficial to the new hydraulic support for the top coal rupture and roof control, as well as for the top coal. Reasonably determine the capacity of the rear conveyor.

Under two hard conditions, the rapid advancement technology of top coal mining, research on the appropriate technology of fully mechanized top coal mining, optimize the mining technology, and shorten the coal mining time. Improve work efficiency and achieve high productivity.