| 摘要 |
PURPOSE:To process rock wool waste fiber into a readily handleable form and contrive effective utilization thereof, by adding a clay mineral and hydraulic inorganic binder to the rock wool waste fiber, forming and briquetting the obtained mixture. CONSTITUTION:A clay mineral and hydraulic inorganic binder are added to rock wool and/or waste fiber discharged in producing the rock wool product. The resultant admixture is then formed to provide a briquette, which is used as part of a raw material for the rock wool. The waste fiber used is preferably pulverized to >=5mm particle size and the resultant fiber is preferably present in an amount ot >=90%. The blending ratio of the waste fiber to the briquette is 65-95wt.%. If the amount of the waste fiber is >=95wt.%, briquetting is difficult. It the amount is <=65wt.%, there is a problem in the amount of the treated fiber and the amounts of the clay mineral and hydraulic inorganic binder are increased to raise the cost. Ordinary portland cement, high early strength portland cement, blast furnace cement, alumina cement, etc., are used as the hydraulic inorganic binder. |
