Fixed Bed Dryer

Modern dryers began to use fixed-bed dryers with intermittent operation. In the middle of the 19th century, the use of tunnel dryers marked the development of dryers from intermittent operation to continuous operation.

The rotary drum dryer better realizes the agitation of the granular materials, and the drying capacity and strength are improved.

Some industries have developed continuous operation dryers that meet the requirements of the industry, such as drum dryers in the textile and paper industries.