The rotary kiln processed high-temperature materials are often subject to the cooler to reduce to a certain temperature before proceeding transportation, storage and processing of the next step. According to requirement, the cooling machine can do heat recovery work by air. The cooler makes the combustion air preheated to a higher temperature and reduces heat loss.
The cooler can be divided into air cooler, water coolers, air-water mix cooler according to different material, different techniques and different working conditions. There are several types from 3tph -50tph depending on the output capacity.