Masonry mortar for lining high-temperature units

Abstract

The utility model relates to the refractory industry and can be used as a masonry mortar for lining heating units in ferrous and non-ferrous metallurgy operating under high-temperature conditions. The technical result is a reduction in the cost of masonry mortar and a solution to environmental problems due to the recycling of man-made waste with an expansion of the raw material base of refractory materials while maintaining high performance characteristics (fire resistance, strength and chemical resistance). The technical result is achieved in that the masonry mortar for lining high-temperature units, including aluminum and technical alumina, according to the utility model, instead of expensive chromite concentrate, anhydrous magnesium sulfate and magnesium oxide, contains epsomite (O), periclase-chromite product scrap, and to activate the ignition process of the SHS charge, a target additive-catalyst - fluorite (CaF2) is introduced. A masonry mortar for lining high-temperature units, comprising aluminum, a magnesium sulfate-containing component, technical alumina, a chromite-magnesium-containing component, and a target additive, characterized in that, in order to reduce the cost price, utilize production waste, and also activate the process of ignition of the SHS charge, it contains epsomite (MgSO4⋅7H2O) as a magnesium sulfate-containing component, as a chromite-magnesium oxide-containing component - broken periclase-chromite products, and as a target additive-catalyst - fluorite (CaF2), with the following ratio of components, wt.%: • Aluminum: 7 • Epsomite (MgSO4⋅7H2O): 17–20 • Technical alumina: 10–20 • Fluorite (CaF2): 1-3 • Broken periclase-chromite products: the rest (up to 100%).