Nine measures to prevent impact pressure

(1) Adjust the production layout and reduce the high stress area of ​​the coal pillar. In the production arrangement, more than 50 mining areas, which were originally classified according to blasting, were merged into three comprehensive mining areas in the east, middle and west accord

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Discussion on safe mining technology of coal mine

Coal is the food industry, accounting for 70% of China's energy structure. At present, China's proven coal reserves amount to 900 billion tons, which can be extended for at least 400 years according to the annual mining of 1.5 billion tons. China's oil and natural gas resources are limit

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Application of rice grinder in inspection of yellow rice

The yellow grain rice is a type of rice that causes the surface color of the rice to become pale yellow and yellow due to the rice grains failing to be promptly threshed, dried, or dried during the harvest, or due to the rice being infected by Monascus spp. From the standpoint of quality

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How to Deal with the Tire in the Train

The car is on the way, do you have the experience of driving a flat tire? If you forget to bring your spare tire, it is estimated that you will be embarrassed! This situation is not without a move, today I Xijiang workers Chu Sheng Department of Technology

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