TAKING OUT OF MOLTEN IRON FROM ROCK WOOL RAW MATERIAL MELT

摘要

PURPOSE:To make it possible to continuously carry out rock wool production operation, by providing a perforable blocking mud in the sidewall of the lowermost part in a furnace on the opposite side of the outflow port of the melt with respect to the center of a smelting furnace and perforating the mud at an optional time to take out the stored molten iron. CONSTITUTION:Blast furnace slag is charged through a charging inlet 4 into the body of an electric furnace 1 and a preheated component adjusting material is then charged from a charging pipe 8 to adjust a raw material melt 17. The furnace body is tilted by hydraulic cylinders 15 and pistons 16 to continuously feed the raw material melt 17 through an outflow port 9 to a fiber machine 10 and produce the aimed rock wool. In the process, iron and iron oxide in the slag are reduced into molten iron 18, which is gradually stored in the lower- most part of the furnace 1 to reach the height of the outflow port 9. Therefore a perforable blocking mud perforable by a perforating machine 19 is provided in the sidewall of the lower- most part of the furance 1 on the opposite side to the outflow port 9 to perforate the mud by the perforating machine 19 for each given amount of the molten slag. The furnace body 1 is tilted to take out the stored molten iron 18. Thereby the operation can be subsequently transferred to fiber making operation without adversely affecting the continuous fiber making operation.