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January 21, 2013

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Vysokokaltsievye useful guide to the slag granulation. On the basis of granulated slag can obtain various kinds of high quality cement. Indecomposable of blast-furnace slag, less rich with calcium oxide, should be made slag pumice, crushed stone cast, castings and slag wool. These same products can be manufactured from slag, silica prone to decay, but then require additional costs for special technological methods to prevent the disintegration of the slag. The basic open-hearth slag quenching have increased chemical activity and, as well as blast of pellets, can be used in the production of cements. Acidic waste products are also suitable for the production of slag pumice, molten rubble and slag wool. Acid steel slag, thanks to a large number of iron oxide, manganese oxide, magnesium, silica, differ from the blast-furnace slag ability to melt at lower temperatures. Crystallized acid wastes, in particular the cupola, have high resistance to alkaline and acidic environments, as well as at high temperatures.

This allows their use as fillers in the acid-and heat-resistant concretes. Granulated slag acid open-hearth furnace and cupola of production should be used for slag Portland cement and slag other types of cement used in concrete structures exposed to aggressive influences of other aggressive environments. The main consumer of slag – cement, uses annually 20-23 million tons of granulated product. The presence of latent heat in the disordered structure of glass slag cooling abruptly gives high chemical activity, ie desire for favorable conditions, finish the formation of the structure. This latent energy of glassy slag is shown in its binding properties.