Under the promotion of the “Gasification Shanxi†strategy, Sihe Mine of Jinmei Coal Group actively explored underground gas drainage technology and mastered scientific coal gas drainage, collection and transportation core technologies, weaving the country’s largest downhole gas drainage pipe network system. It has taken a solid step in the comprehensive management and utilization of gas.
In order to ensure the amount of gas to be pumped, the Sihe Mine has been inspected and managed through organizational management and drainage techniques and has been continuously innovating. Large-scale regional drilling has been carried out on the original coal gas area and unliberated coal seams, and rock drilling has been used in the construction of rock roadways. Mi Kong, in advance in the rock roadway excavation process can effectively drain the coal roadway gas. Optimize the drainage system, increase the drainage of PE400, PN700 and Other models, reconstruct the working face branch pipelines, guarantee the negative pressure at the end, and increase the gas drainage volume. At the same time, special personnel were assigned to carry out the management and maintenance work of the drainage pipelines, to strictly inspect the quality of the newly sealed drilling holes, to carefully inspect all the drainage pipelines downhole, to deal with hidden dangers of leakage, and to carry out at least two daily drainage pipelines. Secondary discharge of water to eliminate stagnant drainage caused by stagnant water. At present, the total length of the main road for gas drainage in Sihe Mine has reached 110,000 meters, making it the longest downhole gas drainage pipeline in the country.
At present, Sihe Mine continuously makes a fuss about the comprehensive utilization of gas energy. In addition to supplying the extracted gas to Asia's largest gas-fired power plant, the Sihe 120,000-kilowatt coal-bed methane power plant for power generation, the gas extracted from underground mines can fully meet the daily needs of employees for heating, bathing, and canteen gas use. It is exported to nearby residents so that the results of gas control can benefit the people.
In order to ensure the amount of gas to be pumped, the Sihe Mine has been inspected and managed through organizational management and drainage techniques and has been continuously innovating. Large-scale regional drilling has been carried out on the original coal gas area and unliberated coal seams, and rock drilling has been used in the construction of rock roadways. Mi Kong, in advance in the rock roadway excavation process can effectively drain the coal roadway gas. Optimize the drainage system, increase the drainage of PE400, PN700 and Other models, reconstruct the working face branch pipelines, guarantee the negative pressure at the end, and increase the gas drainage volume. At the same time, special personnel were assigned to carry out the management and maintenance work of the drainage pipelines, to strictly inspect the quality of the newly sealed drilling holes, to carefully inspect all the drainage pipelines downhole, to deal with hidden dangers of leakage, and to carry out at least two daily drainage pipelines. Secondary discharge of water to eliminate stagnant drainage caused by stagnant water. At present, the total length of the main road for gas drainage in Sihe Mine has reached 110,000 meters, making it the longest downhole gas drainage pipeline in the country.
At present, Sihe Mine continuously makes a fuss about the comprehensive utilization of gas energy. In addition to supplying the extracted gas to Asia's largest gas-fired power plant, the Sihe 120,000-kilowatt coal-bed methane power plant for power generation, the gas extracted from underground mines can fully meet the daily needs of employees for heating, bathing, and canteen gas use. It is exported to nearby residents so that the results of gas control can benefit the people.
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