1. Hot-air passes through materials for several times and flows reverse direction with materials; so that to make the heat exchange fully and ensure the high heat efficiency.

2. Compact structure, small land area.

3. The residence time of materials in the bed can be adjusted; easy of operation.

4. Material moves a top-down circular motion along spiral bed; meanwhile, it also self-skips. So that, it increases the materials in contact with hot-air and improve the drying effects.

5. Continous feeding&discharging materials are suitable for flow line production and easy to achieve GMP standard to replace tranditional box drying.

6. No damage of material surface. Not only to ensure the roundness of pills, but also reduce the pills’ break.

 

■ Wet-materials feed into the spiral bed from the top feeder. With the action of circumferential vibration and gravity, materials skip a top-down motion along the spiral bed until be discharged from lowest. At the same time, clean hot-air enters from the bottom of spiral bed and full heat and mass transfer with the materials on the bed; after that, it will be discharged from the top to achieve the drying.

 

■ LZG spiral vibration drier is mainly used to dry Chinese medicine pilss and also the granular, short strip and globular materials in the industries such as chemical industry, pharmacy, food, plastics, building materials, fodder, etc.

1. Production capacity is relevant to material water content and final mositure.

2. The datas in above table is the production capacity of Chinese madicine pills. (the initial mositure＜35%, the final mositure＜3%)