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1971年9～10月闻,我院组织有关人员,到某部队坑道,进行了水封爆破降尘降毒试验。当时部队作业种类属小导洞盲端掘进,使用硝铵炸药;防护措施利用轴流式扇风机通风。经过10～15次试验,我们认为水封比泥封爆破降尘降毒效果较好。战士普遍反映,水封爆破时,黄烟明显减少,可缩短通风时间,提前进坑道作业。一、器材规格采用聚氯乙烯或聚乙烯塑料,制成瓦刀型薄膜袋(依其用途称水封袋),厚度0.04～0.08毫米,长30厘米,宽5厘米,把长8.5厘米,把宽2.5厘米(如图1)。盛水量215毫升,盛水后直径为3.4厘米。
From September to October 1971, our hospital organized relevant personnel to go to a troop tunnel and carried out a water-to-explosion blasting test to reduce dust and poison. At that time, the operation of the troops was carried out by blind pilots of small pilot holes and the use of ammonium nitrate explosives. The protective measures were to use the axial fan fan for ventilation. After 10 to 15 tests, we believe that the water seal is better than the mud seal burst dust and poison. Soldiers generally reflect the water seal burst, the yellow smoke significantly reduced, can shorten the ventilation time, advance into the tunnel operations. First, the equipment specifications Polyvinyl chloride or polyethylene plastic, made of tile knife-type film bag (according to their use, said water seal bag), the thickness of 0.04 to 0.08 mm, length 30 cm, width 5 cm, the length of 8.5 cm, the 2.5 cm wide (Figure 1). Sheng water 215 ml, after the diameter of 3.4 cm water.