目前采用无底柱分段崩落采矿方法的各矿山,普遍使用装药器装药。由于炸药中有结块或混进纸屑、石块等杂物,为防止装药堵管,在炸药装入装药器之前,需将炸药破碎筛分,保证其粒度在10毫米以下并清除杂物;另外,为降低装药的返粉率,尚需在炸药中拌入柴油(100:2),增加其湿度。试制的这台炸药破碎筛 At present, all mines that adopt subsidence-free subsidence mining methods commonly use chargers. As the explosives are caked or mixed into the paper scraps, stones and other debris, in order to prevent charge tube plugging in the charge before loading explosives, the explosives to be crushed and sieved to ensure that its particle size below 10 mm and clear In addition, in order to reduce the rate of reloading of the charge, diesel oil (100: 2) needs to be mixed with the explosive to increase its humidity. Trial of this dynamite crushing sieve