The mechanism of explosion and deflagration accident that happened in PR-M neutralize procedure are studied.The direct cause of the accidents were found,and methods to avoid the accidents are provided.

• 对硝酸甲胺中和工序发生爆炸与爆燃事故的机理进行了研究，找出了事故发生的直接原因，并提出了预防事故发生的方法。