Valves play a key role in the iron & steel industry. Their applications run through the whole production process, from raw material processing to ironmaking, steelmaking, continuous casting, rolling, and auxiliary systems (such as energy medium transportation, environmental protection treatment, etc.).

 

Applications of valves in the steel industry

 

I. Ironmaking processing

a. Blast furnace system

- Applications: blast furnace gas recovery, cooling water system, furnace top pressure control.

 

b. Hot blast furnace system

- Applications: combustion air, gas pipeline switching.

 

II. Steelmaking process

a. Converter/electric furnace system

- Applications: oxygen delivery, molten steel discharge, and flue gas recovery of oxygen top-blown converter (BOF) and electric furnace (EAF).

 

b. Refining furnace (LF/RH/VOD)

- Applications: argon/nitrogen stirring, vacuum system.

 

III. Continuous casting process

a. Tundish and crystallizer

- Applications: molten steel flow control, protective casting.

 

b. Cooling water system

- Applications: secondary cooling water flow regulation.

 

IV. Steel rolling link

a. Heating furnace system

- Applications: gas (coal gas/natural gas) control, flue gas emission.

 

b. Hydraulic and lubrication system

- Applications: rolling mill hydraulic power transmission.

 

V. Auxiliary system

a. Water treatment system

- Applications: circulating cooling water, turbid water/clean water pipeline.

 

b. Gas medium transportation

- Applications: oxygen, nitrogen, argon, compressed air and other pipelines.

 

c. Waste heat recovery and environmental protection

- Applications: waste heat boiler steam pipeline, desulfurization and denitrification system.

 

d. Dust removal system

- Applications: bag filter, electrostatic precipitator pipeline control.