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广西拉么锌矿是一个日采选能力300吨的小矿,一直没有通风系统。1973年在井下安装了两台20瓩辅扇,起了一些作用,但随着生产的发展,巷道不断延伸,原有设施满足不了需要。1974年底国家拨给了建立通风系统的专款,经过一年多努力,40瓩和135瓩主扇于1976年4月和9月相继投产。同时,掘进大断面的总回风巷400米、联络道96米,初步形成了通风系统,粉尘浓度合格率达78％左右。为了在两年内把我矿办成大庆式企业,矿党委组织了一个小组到江西西华山钨矿参观学习,打开了眼界。对比之下,我矿井下
Guangxi Zinc Zinc Mine is a day mining capacity of 300 tons of small mines, there is no ventilation system. In 1973, two 20 瓩 auxiliary fans were installed downhole, which played a role. However, with the development of production, the roadway continues to expand and the existing facilities can not meet the needs. By the end of 1974, the country earmarked funds for the establishment of a ventilation system. After more than a year of hard work, 40 瓩 and 135 瓩 main fans were put into operation in April and September 1976 successively. At the same time, the total return airway tunneling 400 meters, contact 96 meters, initially formed a ventilation system, the dust concentration of 78% pass rate. In order to run mine into a Daqing-style enterprise in two years, the coal mine party committee organized a group to visit and learn from the Xihuashan tungsten mine in Jiangxi Province and opened up an eye-opener. In contrast, I mine