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在毛主席“备战、备荒、为人民”的伟大战略方针指引下,我局在重庆建筑研究所的协作下,用煤矸石试制成功了用于井下巷道支护的煤矸石支架,经过一年多时间的试用,效果良好。现已建厂大批生产,从1971年6月份投产到1972年4月止,已生产矸石支架8000余架,用于井下6400架,矸石支柱1000根,用于井下660余根,轨枕1000多根。 矸石支架,是利用煤矸石自身所含的可燃物通过煅烧,配加少量生石灰粉等激发剂,经轮碾振动成型,蒸汽养护而成的一种新型的矿井支护材料。
Under the guidance of Chairman Mao’s great strategic policy of “prepare for war, prepare for waste, and provide for the people,” under the cooperation of the Chongqing Institute of Building Research, the Bureau successfully manufactured coal gangue supports for underground roadway support with coal gangue. After more than a year, The trial of time has worked well. A large number of production plants have been established. From June 1971 to production in April 1972, more than 8,000 meteorites have been produced for use in downhole 6,400 units, and 1,000 meteorites have been used in more than 660 underground shafts. More than 1,000 sleepers have been installed. . The vermiculite support is a new kind of mine supporting material made by using combustibles contained in the coal gangue itself through calcining, adding a small amount of activator such as quicklime powder, and being steam milled by rolling mill to form steam.