Industry background:
Steel smelting is an important source of environmental pollution. The production process from raw materials, coking, sintering to ironmaking, steelmaking, continuous casting, and steel rolling generates a large amount of exhaust gas, causing serious environmental pollution. In this process, the process involves controlling the concentration of oxygen and producing gases such as carbon monoxide, sulfur dioxide, hydrogen sulfide, and nitrogen oxides.

Solution:
Monitoring locations: sintering fan room, sintering area, blast furnace fan room, coal injection area, rolling area, blast furnace body area, bag area
Monitoring factors: combustible gases, oxygen, carbon monoxide, sulfur dioxide, hydrogen sulfide, nitrogen oxides
Data transmission: one is wired transmission, and the other is wireless transmission.
① Wired transmission: The gas detection alarm device transmits a 4-20mA current signal or RS485 bus based digital signal to the gas alarm controller, which is then converted into an RS232 signal and transmitted to the computer terminal;
② Wireless transmission: The gas detection alarm device transmits data to the gas alarm controller through RTU433 or GPRS wireless transmission, and then wirelessly transmits it to the computer terminal through the Internet network.

Scheme composition:
Front end media monitoring: gas detection alarm, shielded cable, fiber optic, wireless module, switch, gas alarm controller, PLC, DCS, etc.
Terminal monitoring management: client gas online monitoring software platform, monitoring center monitoring platform system, etc.