摘要
硫化亚铁自燃是引起石油化工行业火灾爆炸事故的重要原因之一。为了规避此类事故的发生,利用自燃温度测试仪测定了不同粒径硫化亚铁以及硫磺与硫化亚铁混合物的自燃温度。结果表明:随着硫化亚铁粒径比表面积的增大,其自燃温度先减小后增大,之后随着粒径的继续增大,自燃温度基本保持平稳状态;硫磺与硫化亚铁混合物自燃温度彼此具有协同作用,其自燃温度比硫化亚铁自燃温度降低了116.3℃,使硫化亚铁自燃失控危险性大大增加,为采取安防措施带来了极大的不便。
Self-ignition of ferrous sulfide is one of the most important hazards for fire and explosion in the petrochemical industry.In order to avoid such accidents,the auto-ignition temperature of sulfide ferrous in different particle sizes and the mixture of sulfur and ferrous sulfide are measured by spontaneous combustion temperature tester.The results show that the ignition temperature firstly decreases and then increases with the increase of specific surface area of ferrous sulfide and afterwards with the continuing increase of particle size,the auto-ignition temperature remains stable.The mixture of sulfur and ferrous sulfide affects cooperatively each other and the auto-ignition temperature of the mixture is lower 116.3 ℃ than that of ferrous sulfide.This effect greatly increases the runaway risk of the spontaneous combustion of ferrous sulfide,and brings a great deal of inconvenience to take security measures.
出处
《工业安全与环保》
北大核心
2015年第6期36-38,共3页
Industrial Safety and Environmental Protection
基金
国家科技支撑计划课题(2012BAK13B02)
关键词
硫化亚铁
自燃温度
硫磺
安全
协同作用
ferrous sulfide auto-ignition temperature sulfur safety synergic effect
