A method for the thermal treatment of cement raw meal in a reaction chamber

摘要

In the process of the invention, cement raw meal in a reaction chamber, thermally treated, whereby the reaction chamber a bottom, with a plurality of compressed air nozzles for the transport on the ground, focal - or radical combustible substances, wherein the compressed air nozzles in the direction of transport both next to each other as well as in are arranged one behind the other and separately controllable groups of one or more compressed air nozzles are divided, wherein the compressed air nozzles of a group are activated simultaneously. The following process steps are provided:a. it is an object of cement raw meal,example, it is an object of the fuel,c. the addition of combustion air,that removal of the exhaust gases which are formed together with the thermally treated cement raw meal,e. activation of the compressed air nozzles for the transport of the located at the bottom of the combustion chamber - or radical combustible substances.All groups of the compressed air nozzles are activated successively in time, the sequence is selected in such a way that the predominant part of the temporally successive activations by groups takes place directly in or transversely with respect to the transport direction are not located directly adjacent.