METHOD AND DEVICE FOR PRODUCING AND UTILIZING GAS FROM WASTE MATERIALS

摘要

In this process for gasifying and burning waste materials, the waste materia ls are introduced into an incinerator (1) and end up on a burning grate (6) to which air is conduct ed by means of various undergrate forced draft chambers (8a to 8e). In the first area air i s introduced at a superstoichiometric level in order to ignite the waste materials. Then, via the undergrate forced draft chambers (8c to 8e), oxygen is mixed into the air which is used for th e gasification, at the same time establishing a substoichiometric level which leads to gasification of the waste materials. These combustible gases which come about in the process pass via the waste gas flue (12) into a second furnace (2), in which the gases are burned at a superstoi chiometric level through the introduction of combustion air. The resulting waste gases pass t o a heat exchanger (3). (Figure)