Rotary Kiln Vs Dryer

Rotary kilns and rotary dryers look nearly identical, a rotating cylinder on an incline, and the names are often used interchangeably. But they do different jobs, and confusing them in a specification is an expensive mistake. A dryer removes moisture. A kiln drives a chemical or physical change in the material at high temperature.

What a Rotary Dryer Does

A rotary dryer operates at relatively low temperature, usually well below the point where the material changes its chemistry. Its job is to evaporate water, reducing moisture content before storage, handling or a downstream process. It heats gently, moves material through, and carries the evaporated moisture away in the gas stream.

What a Rotary Kiln Does

A rotary kiln operates at much higher temperatures and is designed to transform the material itself, through calcination, combustion or pyrolysis. It runs hot enough to change the chemical structure, and is built to hold a controlled, sometimes inert atmosphere that a dryer does not need. If you need a material changed, you need a kiln; if you need it dried, a dryer is the cheaper, lighter machine.

Learn More:

• Tyre Pyrolysis Plant
• Klean Repairs Faulty Rotary Kiln Systems
• Feasibility Studies
• Turn-Key Project Delivery

Specify the Right Machine

A dryer will not do a kiln’s job, and a kiln is wasted on a simple drying duty; getting this right is the cheapest decision in the project.

Klean Industries sizes and supplies both, and engineers rotary-kiln pyrolysis systems turn-key, with three recovered carbon black plants delivered in India over the past two years.

Not sure whether you need a kiln or a dryer?

Contact Klean Industries about rotary kiln vs rotary dryer » GO.