| 摘要 |
<p>PURPOSE:To provide the method for adjusting the hue, etc., of wadded rock wool within the strict reference value required for building materials, etc., at the time of producing the rock wool with molten slag from a blast furnace, etc., as a raw material. CONSTITUTION:The hue, etc., of the wadded rock wool is adjusted by controlling the amt. of carbon in the molten blast furnace slag tapped from a secondary electric oven 3 at the time of producing the rock wool by adding auxiliary raw materials for component adjustment to the molten blast furnace slag in a primary electric oven 2 to dissolve the slag and to adjust its components, then regulating the temp. in the secondary electric oven 3 and wadding the raw materials.</p> |
