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Water cooled elements
Water cooled elements with protective cover are elaborated. Cover promotes decrease of panel oxidation, crack formation and heat loss.

EAF charge
A new technology base and approptiate equipment for carbon-thermal reduction of iron containing technogeny wastes is elaborated in order to utilize these wastes in capacity of part of the EAF charge.

EAF off gas suction elbow
EAF off gas suction elbow with a system of primary dust removal is elaborated. It provides a possibility of metal charge burning decrease due to partial return of heavy particles into the EAF.
 
Water cooled roof

Design

Manufacturing (together with wall rarefied panels)


Operation


For direct current arc furnaces (DC EAF), used in “small” metallurgy our Company develops a design of “warm” roof. The roof represents self-bearing conic surface from a steel sheet which leans on a peripheral collector - a water distributor. Panels are executed with non dense pipes arrangement and fixed on some distance from a conic surface from the side of working space of the furnace. One aperture under an electrode with a refractory insertion part (an electric insulator and economizer), and also technological apertures for submission of auxiliary materials and off gas suction (if necessary) is stipulated.

Calculation of the roof (an interpipes interval and distance from coils up to a steel sheet of a casing) is carried out with reference to power and geometrical parameters of the furnace and provides steady slag accumulation and the minimal influence of the roof on classical technological process in the furnace with comparatively long liquid period of the heat.

On “small” metallurgy DC EAF used the rarefied wall panels. It practically do not render influence on melting technology.

Our Company carries out a complex of works on development and delivery of cooling systems, designed for DC EAF with account of its peculiarity, carries out supervision at installation and input in operation.
 
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