Rotary Kiln Design

A rotary kiln is not a fixed machine bought off a shelf; it is sized and shaped around the feedstock it will process and the product it must deliver. The core of that engineering is matching the drum’s dimensions, slope, rotation speed and heat input to a target residence time, so every particle leaves the kiln fully processed.

The Variables That Set Size

Kiln sizing is driven by a handful of linked parameters:

• Drum diameter and length, which set working volume.
• Slope, the slight incline that urges material forward as the drum turns.
• Rotation speed, which controls mixing and the rate of advance.
• Residence time, the time material spends inside the drum at temperature.

Why One Size Does Not Fit All

The same basic cylinder must behave differently depending on the job. A tyre-pyrolysis kiln operating oxygen-starved to recover oil and carbon black needs a different slope, speed and sealing arrangement than a lime calciner running flat-out at high temperature. Getting the sizing wrong means either under-processed product or wasted fuel, so the design is always derived from the material’s heat-up and reaction profile, not copied from a catalogue.

Learn More:

• Tyre Pyrolysis Plant
• Plant Design & Engineering
• Feasibility Studies

Design Your Kiln Around Your Material

Klean sizes rotary kilns to the feedstock and the output, not around a standard drum.

Klean Industries provides the plant design and engineering that turns a material into a correctly sized thermal process, plus turn-key delivery.

Planning a rotary kiln project?

Contact Klean Industries about rotary kiln design and sizing » GO.