Successful Development of Coal Reinforcement Agent in Tongjialiang Coal Mine

Tongjialiang Mine takes the development of small and micro projects and "shrimp and rice economy" as a breakthrough point, and strives to develop its main products and seek new economic growth points. After nearly a year's efforts, in June this year, the mine successfully developed coal seam reinforcement agent.

In the process of coal mining, the coal seam contains a large number of limestone components, which will cause the coal seam and roof to be soft, and must be strengthened in order to mining smoothly. At present, the reinforcement materials used by coal mining enterprises are polyurethane grouting materials. However, these materials have irritating odor and low toughness. Therefore, Tongjialiang Coal Mine has established the research and development project of coal and rock seam reinforcement agent according to market demand. The raw materials of this project are non-toxic and non-irritating environmental protection materials, while the catalyst introduces water glass materials with low cost, high cohesion and good heat resistance. In the process, the heating and cooling links are emphasized, and the reaction temperature and time are strictly controlled, so as to improve the toughness of the reinforcement. At present, Tongjialiang Coal and Rock Seam Reinforcement Agent has been tested by authoritative testing institutions. The test results conform to the Industry Standard of Coal and Rock Mass Reinforcement Polymer Material issued by the State Administration of Safety Production.