Dear Michael,

What are the properties and composition  of refractory which determine there selective use for different temp. zone.

Regards,

Gulam Dastgir

Dear Gulam,

The highest burning zone temp ( flame temp) is where fuel fully combusted, clinkerization starts. When you reduce Kiln primary air ( less combustion air ) kiln load increases, because fuel travel  further inside the kiln for O2 ( air ) - flame length increase.

Vikpro