Haichen Industrial Control——Hot Air Furnace Combustion Control System

This is a hot blast furnace combustion control system, applicable to industries such as steel mills and cement plants that require large industrial furnaces.

The entire system uses a PLC+HMI control method, enabling automatic ignition and operation of the hot blast furnace on the HMI, as well as monitoring parameters during normal combustion. Siemens 1200 and 1500 series PLCs, after expansion, support various communication protocols such as Profinet, Modbus, Profibus-DP, etc., allowing communication and integration with older 300/400 series PLCs and control systems traditionally used in cement and steel plants, achieving remote control of hot blast furnace ignition safely and reliably.

Analog data read from the site is transmitted to the HMI, where alarm activation can be set; temperature can be controlled stably via PID; valve openings can be freely adjusted according to local climate or seasonal changes. Most functions are directly displayed on the HMI, making on-site debugging simple to operate.

The entire control system has been optimized and integrated with numerous commonly used hot blast furnace operation templates through years of on-site debugging and project experience. It is comprehensive and powerful, supporting multiple combustion methods including gas fuel, light oil, heavy oil, coal, and thyristor rectification, making it an ideal choice for industry users employing hot blast furnaces.