Khd Humboldt Wedag Gmbh

Thomas Binninger

Karl Schinke

Matthias Mersmann

Ralf Werker

Wilhelm Edel

A method of controlling the operation of a bulk good grate cooler for cooling hot cement clinker, for example, in a process-controlled manner is provided in order to ensure that the volume flows of cooling air in all areas of the cooling grate and/or the residence time in the respective area of the bed of the goods to be cooled can be matched to the cooling requirements occurring in each area. A control intervention is carried out during the operation of the grate cooler with respect to the respective local cooling air volume flow and/or with respect to the respective local speed of conveyance of cooling grid according to the respective bulk good bed height measured per area and/or the bulk good bed temperature and/or the cooling air through-flow resistance such that if a modification occurs in one or several of the measured parameters, i.e., bed height, bed temperature and through-flow resistance, the respective local cooling air volume flow and/or the conveyance speed of the grate system is altered.

Method for controlling the operation of a bulk good grate cooler

In order to provide an automatically operating cooling air regulating device for a grate cooler for cooling hot bulk material such as cement clinker, for example, which can be constructed easily and can be used without problems both for non-moving and also in particular for moving cooling grate regions or moving cooling grate systems, a regulating device with a regulator housing which is arranged below the cooling grate, performs its movements with it and is flowed through by the cooling air supplied is proposed according to the invention, an inner body which can be moved translatorily by the cooling air flow being guided displaceably in the regulator housing and the free flow cross section of the regulator housing remaining for the cooling air being reduced automatically with increasing height inside the regulator housing of the inner body against which the cooling air flows, and vice versa.

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Alpharetta, GA, United States of America

Thomas Binninger