Revised Customer process shaft furnace in the Glass & Minerals sector

Shaft furnace Stonewool

Production of stone wool

PROCESS DESCRIPTION

The raw material main components are basalt and coke, minor components are limestone and dolomite.  These components are directly charged from the top of melting aggregates - mainly shaft furnaces, but also electric arc furnaces and smelter with submerged combustion. The basalt is melted at temperature of 1500 - 1550 °C and is leaving the furnace on the bottom to the fiberizer, which makes web of fibers. The collected web is transferred to a curing oven at 230 - 250 ºC.

 

Revised Customer process shaft furnace in the Glass & Minerals sector

Shaft furnace Stonewool

Production of stone wool

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