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大吉山钨矿参照国内外经验,应用光电和空气喷射等技术,在V型皮带光选机的基础上,于1980年6月研制成功B650—1型平皮带光选机。通过两个月的连续试生产,于1980年8月23日,移交该矿选矿厂使用。1981年3月14～16日,江西省冶金工业厅在大吉山钨矿召开了B650—I型光电选矿机选矿技术鉴定会。湖南、广东、江西三省的有关科研、院校、设计和厂矿等部门16个单位25名代表出席了会议。到鉴定会之日止,该机已运转3675小时,故障停车18.5小时,共处N30～40毫米原矿石29400吨,丢去纯废石23500吨。其平均生产指标是:脉石选出率81.29%、废石选出率79.40%,单机处理能力
Dajishan tungsten mine reference to domestic and foreign experience, the use of photovoltaic and air injection technology, based on the V-belt light-sorting machine, in June 1980 developed a successful B650-1 flat belt light-sorting machine. After two months of continuous trial production, it was handed over to the ore dressing plant for use on August 23, 1980. March 1981 March 14 ~ 16, Jiangxi Provincial Department of Metallurgical Industry held in Daye Mountain tungsten B650-I-type optical concentrator beneficiation technology appraisal. Twenty-five representatives of 16 units from Hunan, Guangdong and Jiangxi provinces attended the conference on scientific research, institutions, design and factories and mines. To the date of the appraisal will be, the aircraft has been running for 3675 hours, 18.5 hours of downtime, coexistence N30 ~ 40 mm 29,400 tons of raw ore, throwing pure waste rock 23,500 tons. The average production indicators are: gangue selection rate of 81.29%, waste rock selection rate of 79.40%, stand-alone processing capacity