Purpose of the development: The method used for melting metal in furnaces with a melt blowing process gases.

Recommended application field: Iron and steel industry.

Technical characteristic: The results of experimental tests of the developed evaluation method: The composition of iron, wt.% Si 0,78 Mn 0.50 S 0,033 Low iron, ° C 1310 Additives manganese ore, kg / t 10 The composition of the metal by weight.% C 0.04 Mn 0.33 S 0,017 Metal Temperature, ° C 1650 The oxidation of sulfur,% (dS) 50,80 (24,0) The oxidation of manganese,% (dMn) 37,0 (52,2)

Advantages over analogues: Existing methods have disadvantages in that the level produced by the difference of potentials (0.5-2.5 V) with negative polarity at the top lance throughout the melt does not allow additional warm bath of molten metal to a level trebuyuemogo for effective recovery of manganese from the slag melt in the metal during its refining Sulphur. The task was the development of resource-and energy-saving and creating conditions for effective recovery of manganese from the slag into the metal and to improve the process of refining molten metal by sulfur.

The development stage readiness: Ready for application

Technical and economic effect: The technology has passed industrial tests and has been implemented at the OJSC "Dnepropetrovsk Metallurgical Plant. of Petrovsky." During its use it was found that the manganese content in the metal, resulting from the use of this technology, rose to 0.14 percent. With this savings on to manganese ferroalloys was approximately 26 hryvnia per ton of metal melted. In addition, saving the liquid cast iron, increases the output quality steel, increased safety for the converter.

Description of the development:
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The oxygen-converter process used for refining iron into steel without consuming fuel, pig iron by blowing in the converter is technically pure oxygen at the top. Existing methods do not allow to adequately refine the metal from undesirable impurities. The presence of manganese pig iron increases its hardness and durability, while the presence of sulfur reduces its mechanical properties, contributes to a crack in the casting. The harmful effects of sulfur is neutralized by introducing an additional manganese, which forms a stable compound with sulfur.

Information about newness of the development:
there are Ukrainian patents -- 1 items

corresponds technical description
Ready for implementation

Possibility of transfer abroad:
Licence's sale
Technological document's sale
Combinated reduction to industrial level
Joint production, sale, exploitation

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua