| 摘要 |
The invention relates to a method for preparing a mineral melt for mineral fibres production, in particular rock wool used for thermal and/or acoustica l insulation or for fire protection, stock culture substrates, reinforcement a nd filtering fibres. The inventive method consists in breaking and compacting a t least industrial residual materials and correction materials which are used for regulating the required composition and viscosity of the mineral melt wi th a bonding agent in such a way that moulded pieces can be formed and, afterwards transferred to a melting unit. The aim of said invention is to improve a method for the preparation of a mineral melt for producing rock wo ol in a low-cost manner optimising properties of produced mineral fibre article s. For this purpose the components of the moulded pieces, in particular the correction materials and/or other components of a mixture are substituted at least partially by granulated combustion products, in particular ashes or slags produced by combusting lignite and/or coal-dust, waste paper or wood chips. |
