In this work, a kiln energy model was developed with the main objective of assessing energy consumption in industrial lumber kilns. The model simulates kiln energy consumption on the basis of a simplifi ed description of kiln technologies, energy systems and lumber characteristics, and it requires a minimum set of empirical parameters that are calibrated in practice. In this study, the model ca...

Abstract The processing of belite cement clinker in a rotary kiln at about 1000°C CO 2 atmosphere is new recycling option for Autoclaved Aerated Concrete (AAC) waste that otherwise must be landfilled. Waste fine fractions from sorting facility enriched sulfate due to intermixing with plaster have been processed. During clinkering the phase (Ca SiO 4 ) besides technical ellestadite, 10 (SiO 3 (S...

The effect of brickworks emissions on heavy metal content of soil and plants around the brick kiln chimneys was studied in the year 2006. Two brick kilns (A and B) about 600 m away from Ring Road at SufaidDheri on southerrn side of Peshawar, Pakistan were selected for this study. The two bricks kilns were North-South to each other with 300 m distance in between, such that South direction from b...

It seems like almost everyone either has a new controller for their lumberdrying operations or is thinking about getting one. In the July 1988 Forest Industries, in "A shoppers' guide to electronic kiln controls," I described some of the benefits likely to accrue to users of these machines. Those benefits include improved grade recovery, greater kiln productivity, better use of limited steam su...

A lime kiln is used to convert lime mud into lime for reuse in the causticizing plant of the kraft recovery process. Many of the problems encountered in lime kiln operations can be related to kiln chemistry, including TRS and SO2 emissions, dusting, ringing and refractory brick thinning. Understanding the composition and thermal behaviour of lime mud and the major chemical reactions involved is...