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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.
 
Two rows energy saving wall panel
Design (load Е-dwg №1)                                     Manufacturing                                                             Operation


Using in high and ultra-high power electrical arc furnace (EAF).

EAF frame includes down and upper collector for water supply, connected by vertical tubes. Panels are installed in a frame between vertical tubes, protecting frame against heat flux.

Two row panels distinguish from standard one row ones by moving in direction of EAF working space additional sparse internal row of pipes, installed in definite distance from external dense row of pipes. Panels parameters: inter-pipe and inter-row distances calculate from the condition of minimization of heat loss with cooling water.

Panels in necessary cases equipped by orifices for heat intensification facilities (burners, lances, carbon-powder injectors).

Hydraulic scheme of EAF frame provides separation of “in” and “out” water flows and optimization of parallel connected water circuits by regulation of its hydraulic resistances.

Advantages of two row panels:

• in process of EAF exploitation a slag layer forms between pipes and rows, which promotes 20-25% heat loss decreasing in comparison with traditional one row panels with dense pipes arrangement;

• higher reliability and repair-ability of two row panels. In case of burning of the panel internal row under action of parasitic arc (usual practice in EAF, having casual character), this row is turned off from water supply and furnace operates with using of alone external dance row of the panel until nearest maintenance period.

But in case of EAF modernization necessary take into account, that replacement of one row wall panels by two row ones decrease working space 5-7%.

Our Company provides full working process of design, manufacturing, delivery and maintenance of the EAF modern water- cooling systems with energy saving panels.
 
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