About the quality of raw dolomite for converter refractories
Abstract
Widespread development of the oxygen-converter method of steel production puts forward before the refractory industry the task of providing converter shops with cheap high-strength refractories made from widely available raw materials. In domestic steel converters, the best resistance has a lining made of fired periclase-spinelide brick made of fired magnesite and chromite ore. However, the experience of foreign countries using the oxygen-converter method of steel production shows that the greatest durability of lining and high economic effect are achieved with non-fired dolomite and dolomitomagnesite refractories made of burnt dolomite (or dolomitized magnesite) on a binder of coal tar, pitch or tar. Since resin dolomite refractories are cheaper than periclazspinelidnyh and have a higher resistance, they are accepted as lining material and for the designed in the USSR oxygen-converter shops ...
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