REFRATECHNIK

Basic kiln hoods – successful and ­innovative refractory concepts

The kiln hood of a rotary kiln in a cement plant connects the hot area of the kiln with the clinker cooler and is therefore always exposed to high thermal and process-related stresses. In recent decades, these loads have steadily increased in consequence of the use of alternative fuels and thereby induced higher process temperatures. For system builders, this means an enormous design effort, when rotary kilns are modernized.

1 Introduction

As a static unit, the kiln hood of a cement plant connects the hot area of the rotary kiln with the clinker cooler, and is therefore subjected to correspondingly high loads. In the past decades, these loads have increased continuously as a direct result of developments toward cement plants with modern process conditions, the use of alternative fuels as well as higher process temperatures (Fig. 1).

Especially the increasing modernization of older rotary kilns, that means the change from satellite coolers to more efficient grate coolers and correspondingly dimensioned kiln hoods,...

Related articles:

Issue 2012-08

The cement world gathered at the REFRA-Kolloquium 2012 in the Estrel Hotel, Berlin/Germany (Fig. 1) on 05.-08.06.2012 under the slogan “Meeting point of the cement industry”. The 13th Colloquium...

more
Issue 2013-05

1 Introduction Increasing the service life of refractory bricks is a significant contribution to the efficiency of cement kilns and higher environmental protection, because less refractory material...

more
Issue 2012-11

1 Introduction The global cement industry faces a turning point, and the degree of success in adapting to the changing times will determine its future. Among the challenges for the industry, one can...

more
Issue 2016-11 ONESTONE CONSULTING S.L.

1 Introduction Refractories are indispensable for high temperature industrial processes. Their raw materials are minerals with high melting points, such as magnesite, dolomite and aluminum silicate....

more
Issue 2020-9 REFRATECHNIK CEMENT GMBH

1 Introduction Cement making was and is all about costs. Massive investments to set up production facilities and huge amounts of costs for energy, including expenses for CO2 emissions, have to be paid...

more