Estimation of coating thickness in a rotary kiln by using shell temperature and kiln modeling

In a rotary kiln very versatile and complex processes take place that are strongly nonlinear and time dependent. Efficient protection of the coating in the sintering zone during kiln operation is an important problem from the standpoint of productivity of the kiln. The purpose of this study is to develop a computer program for evaluating the coating thickness in various sections of the kiln.

1 Introduction

Cement is made by grinding gypsum and clinker burned from a mixture of limestone and clay in a certain percentages. A kiln is the most vital part of a cement factory and its outcome is clinker. Cement is the essential material for civil engineering construction works. The chemistry of making cement was studied in some detail (Bouge 1995, Lea 1956). Output from the cement industry is directly related to the state of the construction business in general and therefore closely tracks the overall economic situation in a region or a country (Laszlo, Ignacio, Antonio, Peter 2008).

Cemen...

Related articles:

Issue 11/2014 HGH SYSTÈMES INFRAROUGES

Infrared line scanner for rotary kiln shell temperature monitoring

Kiln performance and reliability is essential to profitable plant operations. A rotary kiln shell has to withstand harsh conditions. The steel and refractory lining structure is heated by a flame at 2000 °C while the outside surface temperature is around 450 °C, using significant temperature gradients. ...

more
Issue 11/2012

Continuous surveillance of kiln shell temperature

The maxim “health is wealth” is applicable to the cement kiln, too. As long as the shell is rotating, the level of profitability is high. Every time...

more
Issue 3/2022 WUHAN UNIVERSITY OF TECHNOLOGY | ANSHAN JIDONG CEMENT CO. LTD

Numerical simulation of oxygen-enriched combustion in a rotary kiln in the primary air and the secondary air respectively

Aiming at a real-size rotary kiln, numerical simulations were carried out for air combustion, primary air oxygen enrichment, and secondary air oxygen enrichment conditions, respectively, in order to...

more
Issue 9/2015 HGH INFRARED

Better thermal kiln monitoring

HGH Infrared Systems, based in Paris, France, has released an improved generation of thermal scanning equipment. The new infrared scanner named “Kiln­scan” monitors rotary kiln shell...

more