Rotary Kiln Efficiency

A rotary kiln is an energy-intensive machine, and its running cost is dominated by fuel. Improving its efficiency is therefore the most direct lever on a plant’s economics, whether through recovering lost heat, tightening the seals, or simply running at the right temperature in the right places.

Where the Energy Goes

Only part of a kiln’s fuel energy actually reaches the material; the rest is lost to the shell, carried away in the exhaust gas and flue, and lost through leakage at the seals. Each of those losses is a target. Recovering exhaust heat, insulating the shell, and sealing the drum so it neither draws cold air nor leaks heat all return fuel energy to the process.

How Efficiency Is Improved

• Heat recovery, using exhaust and product heat to preheat feed or generate power.
• Refractory and insulation, keeping heat where the material is instead of radiating off the shell.
• Combustion and air control, burning fuel completely with just the right excess air.
• Seal maintenance, stopping air in-leakage that dilutes the process and wastes fuel.

Learn More:

• Facility Efficiency Upgrades
• Energy & Waste Audits

Cut the Fuel Bill, Not the Output

Klean Industries identifies and recovers the energy a kiln wastes, improving efficiency without touching production.

Contact Klean Industries about rotary kiln efficiency » GO.