http://www.esafety.cn/blog/wll/66030/index.html

安全生产事故案例分析习题(34)

作者[孙锡云] 发表于[2011-8-2 17:14:00]

安全生产事故案例分析习题(34)

　　某焦化厂危险源辨识

　　炼焦生产的主体设备主要是焦炉。某焦化厂生产工艺主要有：洗煤、配煤、破碎、筛分、焦化、鼓风冷却、氨回收、苯回收、脱硫脱氰等。炼焦原煤经洗煤、筛选后去掉杂

　　获得精洗煤，杂质主要是煤矸石;精洗煤进入煤场储存装置储备，根据炼焦工艺要求按不同煤质进行配煤，并粉碎加工成粉煤;配煤后的粉煤装炉炼焦，煤在焦炉炭化室内经1 400℃高温干馏裂解炭化，同时产生大量有机挥发物(即粗煤气)，即焦炉的输出物有粗煤气和焦炭;当炭化室内煤饼炭化成熟后，焦炭由炉侧推焦机推出，再经水洗降温、冷却、破碎加工成为成品焦炭;除由于工艺操作或炉体不严密等原因造成极少部分粗煤气泄漏外，粗煤气首先经鼓风冷却获得粗焦油，再经氨回收装置、苯回收装置去掉氨和苯，进一步脱硫脱氰后获得净煤气。根据上述场景，回答下列问题。

　　单项选择题

　　1.炼焦生产的原料、半成品和成品有火灾、爆炸危险性，下列( )说法正确。

　　A.一定存在火灾、爆炸的危险源　　B.一定存在火灾、爆炸的事故隐患

　　C.配煤装置不能实现本质安全

　　D.根据标准《重大危险源辨识》(GB 18218-2000)，焦炉是重大危险源

　　答案：A

　　2.根据标准《重大危险源辨识》(GB 18218-2000)，有关焦化厂焦炭和煤气生产工艺说法正确的有( )。

　　A.9t的氨气储罐是危险源　　  B.9t的氨气储罐是重大危险源

　　C.9t的氨气储罐是事故隐患　　D.9t的氨气储罐是重大事故隐患

　　答案：A

　　多项选择题

　　针对苯及其回收装置，下列( )说法正确。

　　A.因为苯是危险化学品，所以苯是危险源　　B.有苯的苯回收装置是危险源

　　C.因为苯是危险化学品，所以苯是事故隐患

　　D.泄漏苯的苯回收装置是事故隐患

　　答案：BD

  • 标签：注安试题 安全生产 
  • 圈子：注安之家 

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