1、 High energy consumption, low efficiency, poor product quality, poor insulation effect, large surface heat dissipation area, large heat loss, open ends, and more heat carried away by raw materials. Due to being a single layer, it is not possible to achieve flipping and drying, resulting in uneven drying of raw materials, small heating areas, low efficiency, and a large workshop area occupied by equipment.

2、 The sealing of the furnace body is poor, resulting in severe material leakage, high dust and strong odor on the production site, which affects environmental protection.

3、 Due to the use of steel belts for conveying raw materials, during the drying process, the steel belts expand and elongate due to heat, leading to frequent steel belt deviation and automatic shutdown due to friction with the inner wall of the furnace.

4、 Suitable for low-temperature dehydration and drying of waste recycling.