Inner Mongolia high-efficiency, high-quality and low-price mine water blocking reinforcement materials 15732959990

Application of Graining high-water filling and sealing materials in long-distance rapid filling and sealing projects in coal mines
: . Source: Xinhe County, Hebei Province Maosen Polyurethane Co., Ltd.
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: . The sealing of coal mine goafs is the main safety measure to prevent self-heating fires in coal seams. Since the traditional airtight walls constructed of loess and cement have poor air tightness and are prone to cracks, the problem of air leakage has always been a difficult problem for underground fire prevention and fire extinguishing. In order to solve this technical problem, our company and relevant science and technology and engineering technicians from China University of Mining and Technology have successfully used Graining high-water materials to carry out long-distance rapid filling and sealing in multiple coal mines.
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: . Graining high-water filling and sealing material filling and sealing project has excellent technical characteristics in terms of strength performance, expansion performance, setting time, etc., and the wall It can quickly achieve the special effect of airtightness and has a wide range of uses underground. It is of great significance for improving underground ventilation, implementing rapid sealing, extinguishing fires, improving the level of one-passage and three-proof management, and building safe mines.
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: . Graining high-water filling and sealing materials are used in coal mines. They are mainly made of high-water materials as cementing materials. The filling aggregates are made of fly ash from thermal power plants. Add appropriate amount of chemical expansion agent. In the rapid filling and sealing construction, according to the above-mentioned production process of the two cementitious materials A and B, aggregates, admixtures and adding an appropriate amount of water, stirring in the two facilities A and B, the filling is carried out by mud pumping location and condense into a filling body in a relatively short period of time. Moreover, the filling body can expand on its own before solidifying according to project needs. This expansion performance can not only achieve tight and effective joint sealing between the filling body and the tunnel periphery, but also reduce the amount of filling material, thereby reducing operating costs.
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: . The filling body is relatively flexible, resistant to extrusion without cracking, has good air tightness, and is impermeable to water. It solidifies quickly during the fire extinguishing and sealing process, and the filling body solidifies and takes shape in as little as a few minutes to adapt to the requirements of different conditions in underground engineering.
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