The cooling stave is a cooling device inside the blast furnace. It is placed between the furnace shell and the furnace lining. The main material is cast iron, cast steel or copper. The cooling stave is mainly used in the tuyere and the following areas to cool the blast furnace hearth lining. Cooling staves mainly include smooth cooling staves, brick-lined cooling staves, ramming-type cooling staves, full-coverage brick-lined cooling staves, inverted C-shaped cooling staves, etc. Cooling plates mainly include copper cooling plates, blast furnace cooling plates, etc.