Fluidized bed combustion apparatus for generating environmentally- innocent ash

摘要

A method for disposing by incineration of waste material containing sludge and garbage of various kinds which when combined results in a composite waste material prepared by performing multiple steps in its handling wherein the composite material is first subjected to a grinding step for thorough intermixing of the sludge that may contain a high percentage of moisture with garbage that can contain very little moisture. After grinding, the composite waste material is processed in a cyclone where the gases that are used to transport the ground matter can be separated while the solids are subjected to classification by the use of a vibratory screen where the paper, fluffy waste, and similar materials can be separated from the smaller and harder particulate components. The separated components are subjected to individual impact grinding steps prior to being recombined in the combustor where incineration takes place. The gases separated in the cyclone separator are reapplied to the grinding steps for moving such material into the incinerating combustor, and any excess gases are delivered to the incinerator, along with ambient air for establishing sufficient oxygen to support combustion in the furnace at a temperature that will sanitize and destroy odors during the incineration of the waste material and after the sanitizing step in the incinerator, the gases are exhausted through suitable heat exchanges and filtering medium.