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开阳磷矿是我国大型磷矿基地。根据化工部1984年1月《复查修改设计》中批准用沙坝矿开拓工程,建设310米盲主井一条。前期主井下放矿石,运输能力为60万吨/年。采用4~#单绳单层罐笼的下放系统,罐笼设置防坠器。 由化工部化工矿山设计研究院设计的HFZ—2500型防坠器於1986年通过了由化工部化学矿山局主持的施工图审查会,并委托徐州煤矿安全设备厂制造,1987年12月12日组成了包括设计单位和用户在内的联合出厂验收小组,认为产品基本符合设计要求,可以出厂。
Kaiyang phosphate rock is China’s large base of phosphate rock. According to the Ministry of Chemical Industry in January 1984 “review the revised design” approved the use of Shaba mine development project to build a blind main shaft of 310 meters. Pre-main shaft ore release, transport capacity of 600,000 tons / year. Using 4 ~ # single rope single-layer cage decentralization system, cage set anti-dropping device. Design by the Ministry of Chemical Industry Mining Institute of Design HFZ-2500-type anti-dropping device in 1986 by the Ministry of Chemical Industry Mining Bureau presided over the construction plans review, and commissioned Xuzhou Coal Mine Safety Equipment Factory, December 12, 1987 Consists of design units and users, including the joint factory inspection team that the product basically meet the design requirements, you can leave the factory.