| 摘要 |
For the thermal elimination of waste materials, such as e.g. sewage sludge, special waste or the like, use has thus far been made of conventional waste burning techniques, in particular with grate firings. Such elimination methods are ultimately not environmentally tolerable and are also not economical. In order to be able to eliminate such waste materials environmentally tolerably and yet economically, it is proposed according to the invention to burn the waste materials, possibly after their comminution and possibly after their drying or preheating in a cyclone furnace (combustion cyclone or melting cyclone of high power density), at extremely high temperatures above 1500 DEG C, forming a molten slag (18) low in harmful substances and a hot waste gas (19), in which gas the useful substances and/or harmful substances contained in the waste materials evaporate, there being separated, separately from one another, from the waste gas, in each case by partial condensation, on the one hand dusts (25) enriched with useful materials and on the other hand dusts (29) enriched with harmful substances. |
