摘要
充填管道的稳定性是充填系统安全运行的关键,而充填管道堵塞是料浆输送过程中发生最为频繁的事故。为合理分析充填管道堵塞的直接原因和间接原因,在综合分析充填管道堵塞事故的基础上,运用安全系统工程中的事故树分析法,建立了充填管道堵塞事故树模型。通过分析和计算事故树的最小割集、最小径集和基本事件的结构重要度,找出了导致充填管道堵塞的主要因素。结果表明:导致充填管道堵塞的路径共有落入异物、格筛破损、管道内径不当等22条,预防充填管道堵塞的途径共有合理控制料浆配比、规范相关设计、消除管理缺陷等4种;水泥用量不合理、料浆配比不合理、弯管较多等16个因素是导致充填管道堵塞的最重要因素。事故树分析法能对导致充填管道堵塞的各种因素及逻辑关系做出全面的阐述,并根据结构重要度提出针对性的防治措施,为充填管道的安全管理提供了可靠的参考依据。
The stability of filling pipeline is the key to keep safe operation for the filling system,while filling pipeline blockage is the most frequent accident in slurry delivery process. In order to rationally analyze the direct and indirect causes for the filling pipeline blockage,and based on comprehensive analysis of accidents about the filling pipeline blockage,the fault tree model about filling pipeline blockage is established by using fault tree analysis of safety system engineering. By calculating min-imal cut set,minimal path set and analyzing structure importance of basic event,the main factors influencing filling pipeline blockage are found out. The results show that there are 22 ways leading to the filling pipeline blockage,for example,objects fallen into,grizzly damage and improper pipe diameter,and 4 ways of preventing the filling pipeline blockage,including reason-able control of slurry ratio,elimination of management deficiencies,specifications of relevant design; Unreasonable amount of cement,unreasonable slurry ratio,more elbow and other 16 factors are the most important factors leading to the filling pipeline blockage. Fault tree analysis can make a comprehensive description about various factors which lead to filling pipeline blockage and the logical relationships among them. According to the structure importance,some corresponding prevention measures are put forward. It provides a reliable reference for safety management of filling pipeline.
出处
《金属矿山》
CAS
北大核心
2015年第1期145-148,共4页
Metal Mine
基金
"十一五"国家科技支撑计划项目(编号:2008BAB32B03)
关键词
事故树分析
充填管道堵塞
最小割集
最小径集
结构重要度
Fault tree analysis
Filling pipeline blockage
Minimal cut set
Minimal path set
Structure importance
