How is clay dryer heated?

When purchasing clay dryer, many customers are often unclear about the fuels, heating equipment, and heating methods involved. Feihong Machinery possesses extensive experience in manufacturing these dryers and provides detailed answers to any questions or areas of confusion customers may have. To understand how these dryers are heated, one must first look at the sand drying process.

A crucial step in the sand drying process is using heat generated from fuel to heat the sand inside the main unit. Heat enters the main unit—where it exchanges heat with the sand—via a draft fan located at the end of the system. The heating unit itself is a hot-blast stove connected to the main dryer unit; the stove is lined with refractory bricks to prevent heat loss and protect operators from burns. The stove features three openings: two at the front—one for feeding fuel (typically coal) and one for removing ash/slag—and a maintenance door at the rear. Feihong Machinery designed the maintenance door with ample dimensions to facilitate easy access for maintenance personnel.

Fuels such as coal or natural gas can be used to heat the dryer; the choice depends on the manufacturer's specific circumstances and production cost considerations, though coal remains the most common fuel source. As sand enters the main unit through the feed chute, the draft fan draws heat into the chamber to facilitate heat exchange. Thanks to Feihong Machinery’s design improvements, the heat interacts thoroughly with the sand, maximizing heat transfer and minimizing loss. This serves as a direct and effective way for users to save on fuel costs and improve economic efficiency.