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我矿西山采矿场使用分段崩落采矿法,有将近20年历史。最初采场矿石靠人工用铁锹以接力方式转运,也用过筐担和小车推,效率低,劳动强度大。至1956年,试制了2.8瓩扒矿机(以下简称小扒矿机),并在采矿工作面推广使用,一直沿用多年。但这种小扒矿机劳动强度仍较大,生产效率的提高受到限制。无产阶级文化大革命以后,为了适应新形势的需要,努力提高矿石产量,在总结采场运搬经验的基础上,对小扒矿机作了详细分析:小扒矿机体积小,重量轻,具有轻便灵巧,适于工作面搬运的优点,但该设备是单辊筒,空载返回时要人力拖,如改为双辊筒就能克服其缺点,而这种设备和大型电耙正相仿。于是仿制并试用了4.5瓩小型电耙(以下简称小电耙)。经过生产实践证明,
I mine Xishan mining use sub-caving mining law, nearly 20 years of history. The first stope ore rely on artificial shovel relay mode of transport, but also used the basket to push and push the car, low efficiency, labor-intensive. By 1956, the trial of a 2.8 瓩 扒 miner (hereinafter referred to as the small miner), and the promotion of the use of mining work, has been in use for many years. However, the work intensity of such a small pick-miner is still large, and the improvement of production efficiency is limited. After the Great Proletarian Cultural Revolution, in order to meet the needs of the new situation, and strive to improve ore production, based on the experience of stope transportation, based on a detailed analysis of the small pick miner: Small pick miner small size, light weight, with Light and dexterous, suitable for the face of the advantages of handling, but the device is a single roller, no-load return to the human drag, such as the double roller to overcome its shortcomings, and this device is similar to large-scale electric rake. So imitation and trial 4.5 瓩 small electric rake (hereinafter referred to as small electric rake). After production proved that,