Electric Arc Furnace


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


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.