采用滑模工艺进行烟囱施工是一种较好的施工方法。但随着烟囱施工高度的不断增大,操作人员在施工中稍有疏忽就会造成事故。为了保证工程顺利完成,采用合理的控制电路及准确的信号保护系统是十分重要的。本文主要介绍原四平市第一建筑公司第四工程处为范家屯制糖厂建造80m 钢筋混凝土烟囱时所采用的电子限位安全控制电路。 Chimney construction using a sliding mode process is a better construction method. However, with the continuous increase in the construction height of the chimney, the operator’s slight negligence in the construction will cause an accident. In order to ensure the successful completion of the project, it is very important to adopt a reasonable control circuit and an accurate signal protection system. This article mainly introduces the electronic limit safety control circuit used in the construction of the 80m reinforced concrete chimney for the Fanjiatun Sugar Mill in the fourth engineering department of the former Siping City Construction Company.