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禹州市吕沟煤矿在河南省煤研所的帮助下于1989年10月开展了金属支柱的试压与维修工作,经三个多月的努力,取得了显著成绩。 按《煤矿安全规程》“每一回采工作面结束后或使用时间超过8个月的摩擦式金属支柱必须进行完好检修。检修过的支柱必须进行压力试验,合格后方可使用”的要求,该矿购置了一台YW—100型金属支柱试压机,并自制一台除锈机,在省煤研所工程师技术指导和培训下,7～8个工人,每天平均维修试压70根合格柱,现已试压6000多根,如今工作面全部换上了合格的摩擦金属支柱,保证了工作面的安全生产。 通过维修、试压,使以往认为报废的支柱复新,仅此修旧利废以来,节约资金达5万元。
With the help of Coal Research Institute of Henan Province, Lvgou Mine of Yuzhou City carried out the pressure test and maintenance of metal prop in October 1989. After more than three months of hard work, remarkable achievements have been made. According to “Coal Mine Safety Regulations” “After the end of each mining face or the use of more than 8 months of friction metal pillars must be well overhauled maintenance pillars must be pressure tested, qualified before use” requirement, the mine Purchased a YW-100 metal strut press, and made a derusting machine, engineers and technicians in the Institute of Coal Institute guidance and training, 7 to 8 workers, the average daily maintenance pressure test 70 qualified columns, Pressure testing has now been more than 6,000, and now face all put on qualified friction metal pillars to ensure the safe production of the face. Through maintenance and pressure test, the pillars which were considered as scrapped in the past are to be renewed. Only this old and scrapped waste has saved funds of 50,000 yuan.