I. Introduction to Hollow Paddle Dryer Equipment
The hollow paddle dryer is a horizontal stirring-type continuous drying equipment primarily based on heat conduction. Because the stirring blades resemble boat paddles, it is called a paddle dryer; internationally, it is also known as a trough dryer or agitation dryer.
Since the heat required for drying in this equipment relies on indirect heating through heat conduction, the drying process requires little or no gas to carry away moisture. This significantly reduces the heat loss carried away by the airflow, improving thermal efficiency and making it an energy-saving drying equipment. Paddle dryers are widely used in industries such as environmental protection, petrochemicals, chemicals, metallurgy, food, pharmaceuticals, and pesticides for drying powdered, granular, filter cake, and slurry materials. They are especially widely used for drying various types of sludge.
II. Features of Hollow Paddle Dryer Equipment
1. Compact equipment structure, large effective heat transfer area, small footprint
2. Uniform stirring, high thermal efficiency, excellent drying effect
3. Intermeshing paddle shafts provide self-cleaning, preventing material from sticking to the walls
4. Low energy consumption, minimal operating costs
5. Minimal dust carryover, low material loss
6. Indirect heating, no contamination of materials
7. Low paddle shaft speed, preserves product shape and properties
8. High operational flexibility, stable and reliable performance
