1989年12月22～23日,冶金部安环司在湖北省大冶县召开了孔底起爆技术鉴定会。由冶金部安全环保研究院、大冶铁矿、大冶化工厂共同研究的孔底起爆技术,经两年多努力,在模拟和现场测量的基础上,设计研制了适用于井下压气装药的孔底起爆安全装置,经10000多孔现场应用,安全可靠,效果明显,从而解决了孔底起爆技术的关键——安全问题。会议成立了由10名专家教授组成的技术鉴定委员会。全体委员和与会代表对研究报告和现场试验报告进行了认真审查,在现场 December 1989 December 23 ~ 23, the Ministry of Metallurgical Safety and Environmental Protection Division Daye County in Hubei Province held a hole bottom detonation technical appraisal. Based on the hole bottom explosion technology jointly researched by the Research Institute of Metallurgical Safety and Environmental Protection, Daye Iron Mine and Daye Chemical Factory, after more than two years of hard work, based on the simulation and on-site measurement, Hole bottom explosion safety device, the 10000 porous field applications, safe and reliable, the effect is obvious, so as to solve the key hole bottom explosion technology - security issues. The meeting set up by the 10 experts and professors composed of technical appraisal committee. All members and participants on the research report and the site test report was carefully reviewed at the scene