When operating mobile tunnel kilns, rotary tunnel kilns and other kiln types, product drying is a common challenge. Improper operation may result in considerable losses. To address this issue, Yonghua Machinery, a professional tunnel kiln manufacturer, hereby shares practical tips to boost the drying efficiency of our kilns.

1. Accelerate heat transfer: Raise the temperature of drying medium, expand heat transfer area and increase convective heat transfer coefficient.

2. Improve external diffusion rate: Increase medium flow velocity to thin the boundary layer and boost heat transfer efficiency. Reduce water vapor concentration in the medium to speed up drying.

3. Enhance internal diffusion rate: Align the directions of thermal diffusion and moisture diffusion. Strengthen heat transfer to increase temperature gradient of materials, and reduce the thickness of green bodies.

The above three methods help improve the drying efficiency of mobile and rotary tunnel kilns, so as to optimize firing effect and product quality.