Patent ID: 6805554
Filing Date: 2004-10-19
Classification: C04B,F23G,Y02E

Abstract:
Apparatus for the production of cement clinker from cement raw material (RM), with a preheating zone (19), a calcination zone (2), a sintering combustion zone (4) for final burning of the cement clinker and a cooler (5) for cooling of the hot cement clinker by means of cooling gas, wherein at least the sintering combustion zone (4) formed in a kiln (3) is supplied via a burner (6) with fuel, and also with a gasification reactor (9) which is designed for generation of fuel gas from lumpy waste-derived fuels (10), such as e.g. scrap tyres, wood and the like, and to which on the one hand at least one gas supply pipe (13) for a gaseous reagent is connected and which on the other hand is connected via at least one fuel gas pipe (14) to at least one combustion zone (2, 4), characterised by the following features:a) in the gasification reactor (9) in the region above a solids bed (18) made up of the waste-derived fuels (10) there is constructed a reagent introduction zone (19) which extends over the reactor cross-section and into which reagent introduction connections (20) which are regularly distributed over the circumference of the reactor open in such a way that in the region of the introduction zone (19) the reagent (21) can be introduced with a high pulsation to create a pre-selected flow form; b) the fuel gas pipe (14, 14a, 14b) has associated with it at least one gas conveying arrangement (15) for the supply of the fuel gas generated in the gasification reactor (9) to at least one combustion zone (2, 4).