An Electric Furnace used for steelmaking consists of a refractory-lined vessel, usuaslly water-cooled in larger sizes, covered with a Refractory Roof, and through which one or more graphite electrodes enter the furnace.
MAHAKOSHAL EAF ROOF COVER delta section is a pre-cast monolithic high alumina refractory roof for use in Electric Arc Furnaces.
Description :
The MAHAKOSHAL delta section replaces the formerly bricked construction. When assembled, the roof is first gently dried before use.
Application :
MAHAKOSHAL delta roof is supplied in pre-cast individual pieces. They are of a monolithic construction and are assembled into a water-cooled delta frame to form a complete furnace roof. A High Alumina Refractory Castable is used to seal the 3 sections together.
Function :
Traditionally Electric Arc Furnace roofs were constructed of refractory bricks. The lifetime of a MAHAKOSHAL delta roof depends on the individual furnace and steel-making practice, but can be expected to be in the order of 2 to 3 times longer than bricked roofs under the same conditions
Mahakoshal EAF Roof Cover
PRECAST BLOCK FOR DELTA PORTION – ULCC 90
Benefits :
- 3- section construction provides ease of handling.
- After assembly the roof becomes a single unit for maximum strength.
- Assembly is quick and easy.
- Time between refining is significantly extended.