Method for forming a coating on the refractory surfaces exposed to the flame in a high temperature oven. (Machine-translation by Google Translate, not legally binding)

摘要

Method for forming a coating on the refractory surfaces exposed to the flame in a high temperature furnace, characterized in that to avoid its progressive destructive deterioration while the furnace is in operation, said method includes the steps of mixing a chromium ore composition finally sprayed with water to produce a cement slurry, said composition predominantly chromite, which is insensitive to the operating temperature of the furnace and which determines the thermal resistance properties of the final surfaces of the furnace, said chromium ore composition containing more than enough iron oxide to form a spinel of iron chromium, reaching the free iron oxide the amount of between 4% and 6% and serving as a fluxing agent, atomize the slurry of cement under high pressure progressively on the surfaces of the furnace exposed to the flame while the oven is in operation forming a thermally resistant coating on them, and using the heat of the furnace, first to activate the fluxing agent and to produce a fusion bond between the chromium mineral composition and the furnace surfaces as the coating is gradually built up by the operation of spray, and second to set and harden the coating after it has been glued to the oven surfaces and converted into an integrated solid laminar dough that protects the oven surfaces from destructive damage. (Machine-translation by Google Translate, not legally binding)