论文部分内容阅读
在现今条件下,对凿岩爆破工作质量提出了新的要求。这些要求应保证矿岩破碎块度小和均匀、工作面爆堆紧密和崩矿成本低。目前已开始广泛地推行滚轮凿岩、风动冲击器凿岩和火力凿岩代替低效率的钢绳冲击凿岩,并已研究出联合凿岩钻机。在2—3年内,采矿工业将装备以新式钻机。改进爆破工作的基本方向是:采用积极的控制爆破方法,这些方法包括爆破大量矿岩的矿段爆破法和微差爆破;改用倾斜孔爆破;采用安全而经济炸药(铵油炸
Under the current conditions, the quality of rock blasting work put forward new requirements. These requirements should ensure that the ore rock fragments are small and uniform, the blasting face of the working face is close and the cost of the rock collapse is low. At present, roller rock drilling, pneumatic impact rock drilling and fire rock drilling have been widely implemented instead of inefficient steel rope impact rock drilling. Joint rock drilling rigs have been developed. In 2-3 years, the mining industry will be equipped with new rigs. The basic directions for improving blasting operations are: Adopt a positive controlled blasting method, which includes blasting of blasting lots of ore and blasting and micro-blasting; switching to inclined-hole blasting; using safe and economical explosives (ammonium frying