Automatic Control Device for Feeding Raw Material to Blast Furnace

This paper discusses the working principle of a raw material feeding device usedin blast furnace No.1 and No.2 at the Wuhan Iron and Steel company.The methodsto improve its reliability and the effect of its use are also discussed.The device isnoted for using common components and simple electric scheme.The circuitry of thedevice is quite different from the conventional one in putting electronic and power circuits together to achieve improved reliability in operation.