Optimization of the performance of basic refractory bricks for cement rotary kilns

Source/Quelle: Magnesita

Refractory performance in the rotary cement kiln is dependent on a combination of mechanisms. Information about the process, as well as improved refractory technologies must be considered in order to extend the service life.

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 list:

Reduction of energy costs

Replacement of fossil fuels by waste-derived fuels (WDF)

Increase of the share of recycled materials in the composition of the raw meal

Reduction of emission of greenhouse gases

Development of new technologies and practices to ensure a self-sustainable business, with zero environmental and social liabilities

Notwithstanding the fact of being the main source of potential...

TEXT Dr.-Ing. Wagner Moulin Silva, Marketing Technical Development Manager, Magnesita Refractories GmbH, Vienna/Austria

Issue 11/2014 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.

Issue 11/2016 ONESTONE CONSULTING S.L.