Patent EA-002262-B1 (EA)
Title: Process for incineration of organic waste products and an installation therefor
Inventor: TUZOV ALEXANDR YURIEVICH
IPC: F23G5/00
Filed: 2000-07-27
Abstract: 1. A process for incineration of organic waste products comprising charging wastes in an incineration drum and simultaneous recycling calcined solid heat carrier (ash), forced protruding through and heating the obtained mixture with evaporating of water and burning organic matter in a stream of heated air forming solid and gaseous heat carriers, discharging and cleaning burning products, characterized in that a temperature of the mixture is maintained between 100 and 120 degree C in the loading zone under constant control, and formed water vapor is transferred to the zone of hot ash unloading, further air, heated to at least 200 degree C, is fed through the whole length of the burning zone with raw material being intensively mixed above the raw layer, after burning the organic matter the burning products are transferred to an afterburning zone using the heat produced for an additional heating of raw materials in the loading and burning zones, and then gradually cooling them with an air of a variable temperature which is fed through the whole length of the afterburning zone. 2. The process according to claim 1, characterized in that in case of a deficit amount of the produced ash, minerals, such as sand crushed limestone etc, are added to a raw material prior to loading to form a solid heat carrier totally amounting to at least 20% of summed mass of wastes being loaded. 3. The process according to claim 1, characterized in that the air for waste burning is heated in the drum heat-insulating system, the required degree of heating is reached by repeated blowing of excess air through said system. 4. An installation for incineration of organic waste comprising a rotating horizontal drum consisting of two concentrically positioned outer and central pipes rigidly connected by longitudinal strips forming inter-sector space, blades for counter movement of wastes and calcined solid heat carrier in their cavities, spiral duct with an adjustable input opening connected with an inter-pipe space and an output opening to the loading zone, brick lining of the outer pipe in the shape of a heat-insulated shell ring, loading/unloading and burning chambers, means for waste loading and ash removal, means for feeding blow air, purification and discharge of flue gases, characterized in that a number of openings are made on the both ends of the outer pipe, closed from outside with supplying and discharging air collectors made in said loading/unloading and burning chambers and connected with a brick-lined outer cavity, formed by the outer pipe an intermediate concentrically-positioned shell ring with spiral ducts of counter movement on both surfaces, wherein tubular ducts are made from the brick-lined outer cavity to each sector of the inter-pipe space at the outlet of it, and tubular pipes are made from the brick-lined inner cavity for the rest of length of the inter-pipe space and above the bottom of the central pipe through the length of the burning chamber, a discharge pipe with an adjustable gate is made from the zone of the central pipe loading to the zone of ash removal and purifying of flue gases of the loading/unloading chamber. 5. The installation according to claim 4, characterized in that a screen is provided at the entrance of the burning zone in the central pipe enabling to move raw material. 6. The installation according to claim 4, characterized in that there must be at least two spiral ducts from inter-pipe space to the loading zone of the central pipe, evenly-spaced over the central pipe circumference, wherein a threshold is positioned directly after the adjustable input opening in the inter-pipe space for concentration of calcined solid heat carrier. 7. The installation according to claims 4, 5 and 6, characterized in that an inclination angle of the drum longitudinal axis to the horizon can reach 30 degree  to each side.