Assembly to vitrify contaminated waste

摘要

To vitrify waste matter, such as sewage sludge or contaminated sludge or soil or slag and filter dust such as from rubbish incinerators, an assembly to dry and degas and oxidise and sinter the material is between the station to mix and dose the waste and vitrifying agent, and the glass smelting station (15). The regenerators (17), to heat the combustion air for the smelting station (15), are against the flow of the fed combustion air, heated by the exhaust gas from the smelting station (15). The exhaust gas temp., on passing through the regenerators (17), is held at a level to prevent the development of condensation. A recuperator (19) follows the regenerators (17), with exhaust gas flowing through, for condensation to be separated from the steam phase and fed to the preparation station. The recuperator (19) heats the combustion air for the assembly to dry, degas, oxidise and sinter the dosed material.