| 摘要 |
The invention relates to a method of destructing mineral-wool scrap and re-using the scrap in the manufacture of mineral wool. The method is characterized by introducing the mineral-wool scrap into a container in a finelydivided state, and causing the finely-divided scrap to pass through a heating zone generated by an oxygen burner. The mineral-wool scrap is converted to a liquid state in the heating zone and the molten scrap is then introduced to a molten bath produced in a furnace for the manufacture of mineral wool, or to an intermediate container which is mounted between the furnace and a spinning machine. Molten material taken from the furnace is also delivered to the intermediate container. The invention also relates to an arrangement for destructing mineral-wool scrap and re-using the scrap in the manufacture of mineral wool. This arrangement includes a container (20, 31), at least one oxygen burner (25) mounted in the container wall (24; 33, 34) and functioning to melt the mineral-wool scrap, at least one conduit (21) for removing molten mineral-wool scrap, this conduit (21) connecting the container (20, 31) with a furnace (200) intended for the manufacture of mineral wool, or to an intermediate container (40) mounted between the furnace (200) and a spinning machine. |
