Rotary kilns are widely used for the thermal treatment of highly toxic waste. The waste (mostly organic compounds) is packed in barrels before it is fed in the kiln. Depending on the compound the heating inside the kiln leads to deflagrations of the barrels associated with an incomplete burnout. In this paper we present a new method to detect and track waste barrels in infrared image sequences ...

The Cemex facility manufactures Portland cement and is located in Lyons, Colorado, approximately 20 miles from Rocky Mountain National Park. There are two BART-eligible units at the facility: the dryer and the kiln. The Lyons plant was originally constructed with a long dry kiln. In 1980, the kiln was cut to one-half its original length, and a flash vessel was added with a single-stage preheate...

This work consists of a numerical study thermally stressed rotary kiln shell part in cement plant. The simulations are performed by using the finite volume method for discretization and simple algorithm resolution. velocity air injection, its temperature, rotational main parameters under investigation. distribution velocity, pressure, as well evolution Nusselt number determined. In second step ...

A novel form of rotary kiln has been developed which confers advantages over conventional designs. Details are given of the main features of the kiln, along with an approach used to study its heat transfer characteristics when hot processing waste products into a lightweight synthetic aggregate for recycling in building materials. Computer aided ®nite element modelling was used to predict tempe...