This article introduces types and stucture of electric detarring precipitator, analyzes the reasons why electric detarring precipitator stops running and gives the preventive suggestion to improve its stability. 文章介绍了电捕焦油器的类型和构造,对造成电捕焦油器运行中断的故障原因进行了分析,并提出了提高电捕焦油器运行稳定性的预防措施。