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对于易燃粉尘发生爆炸事故的可能性,人们还缺乏足够的认识和重视,设计应用除尘系统时忽略预防对策和措施的现象仍普遍存在。1987月3月15日,哈尔滨亚麻厂发生亚麻粉尘爆炸事故,死57人,伤170余人,直接经济损失800余万元,其直接原因就是除尘器灰斗内的“尘云”因静电火花点燃而起爆。这一惨重的教训告诫我们,预防除尘系统粉尘爆炸是设计、使用管理中的一个至关重要的问题。
There is still a lack of sufficient knowledge and attention on the possibility of an explosion of combustible dust, and the omission of preventive measures and measures when designing a dust removal system is still widespread. On March 15, 1987, flax dust explosion accident occurred in flax factory in Harbin. 57 people died and 170 people were injured. The direct economic loss was more than 800 million yuan. The direct reason is that the “dust cloud” in the ash hopper of dust remover detonated by electrostatic spark ignition . This disastrous lesson warns us that the dust explosion prevention system is a vital issue in design and usage management.