| 摘要 |
For the purpose of efficiently reusing carbon-rich waste products, in particular old tyres, a process is provided which envisages decomposing the tyres thermally. The old tyres are introduced without being comminuted into a liquid metal bath which is covered with a basic layer of slag which serves to trap the sulphur. The gases produced are used as heating gases. The bath is heated by continuously or intermittently adding oxygen or enriched air, by blowing on or blowing in. It is flushed at the same time by circulating gas fed through a blow stone in the base. The steel wire reinforcements which interfere in the conventional pyrolytic process melt in the metal bath. The installation required is a metallurgical vessel (10) with inlet gas lock (41), extraction (70), a lance for blowing on or blowing in (1, 2) and also a blow stone (3). A barrier wall (13) protects the lance (1) for blowing on. <IMAGE> |
