冶金部矿冶研究所科研人员,与湘东钨矿的领导、工人、技术人员组成三结合科研小组,开展用金属砂压支柱代替坑木的研究,通过去年一年的努力,已取得初步成功。金属砂压支柱主要由柱帽、套筒、活柱、传压板、基柱、砂仓、放砂门、木芯和底柱等组 The Ministry of Metallurgical Research Institute of Mining and Metallurgy, with the leadership of eastern Hunan tungsten, workers, technicians combined with the formation of three research groups to carry out the use of metal sand pressure pillars instead of pit research, through last year’s efforts, has achieved initial success . Metal sand pressure pillars mainly by the column cap, sleeve, live column, pressure plate, base column, sand warehouse, put sand door, wooden core and the end of the column group