1985年6月24～28日,由中国有色金属总公司、冶金、煤炭、化工、核工及国家建材局联合举办的首届全国采矿技术市场在长沙展览馆举行,共展出技术成果314项,展销新产品330项,技术咨询服务项目309个。有关采矿方法、爆破、环保等方面难题招标20项。开馆两天多签订合同及意向书金额达600余万元。会议期间还邀请专家、教授作了20余个学术讲座。化工部所属的四个矿业设计研究院和武汉化工学院,参加了市场展出。金河磷矿的“盲井深孔一次爆破成井”, From June 24 to June 28, 1985, the first national mining technology market jointly organized by China Nonferrous Metals Corporation, metallurgy, coal, chemicals, nuclear engineering and the State Building Materials Bureau was held in Changsha Exhibition Hall. A total of 314 technical achievements were exhibited, 330 new products and 309 technical advisory services. The mining method, blasting, environmental protection and other aspects of the tender tender 20. Opened more than two days signed a contract and letter of intent amounted to more than 600 yuan. During the meeting, more than 20 academic lectures were also invited by experts and professors. Ministry of Chemical Industry belongs to four mining design and Research Institute and Wuhan Institute of Chemical Technology, participated in the market show. Gold River Phosphate “blind deep hole burst into a well,”