摘要：

The adhesive materials on the lining of hot wind pipes of No.4 blast furnace of WISCO had been investigated and analyzed.Results show that the adhesive materials on the lining of main pipe are consisted of Al_2O_3,Fe_2O_3,SiO_2,ZnO,MgO,CaO,K_2O,Na2O and others,the compositions of different crystalline phases and bases are different.The formation of adhesive materials on the lining of hot wind pipes was related to the back-flow vapors by the volatilization of dust,alkali metal oxides,zinc,sulfide and chloride condensation which may be reacted with the lining of hot wind pipe.It is harmful to the attachment of adhesive materials on the lining,especially alkali metal oxides,sulfide and chloride which can influence the high-temperature properties of pipe's lining.The influence of alkali metal oxides,sulfide and chloride must be considered to the production and design of refractories for hot-air pipes.

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