When the paddle dryer is working, it will take a large part of the time to reach the temperature of the stay, of course it will never be hotter than its environment, and there will be no overheated product, the danger in hot air is very small .
Compared to others, infrared furnaces can increase the temperature of the product, while the energy transfer rate is much faster. The energy density is not the same, high energy density is sometimes possible, and is much faster than possible hot products. , but may also be overheated.
The heaters allow discrete zone control, fast start-up times suitable for temperature to reach process conditions, and allow the product to reach the desired process temperature. This infrared furnace uses infrared heating while applying a continuous coil coating that can handle thicknesses of metal that are not sufficiently heated.
When the shape of the parts inside the paddle dryer is more complex and the surface rougher, the corrosion resistance will be worse. When the internal parts corrode, it will soon cause the metal parts in contact with the parts Corrosion also occurs, and the rate of corrosion is extremely rapid.
If the working environment of the paddle dryer is high in temperature and humidity, or if there are too many oxygen and chloride ions in the environment, it is easy to chemically react with the paddle dryer and accelerate the corrosion degree of the paddle dryer.
The paddle dryer is a low-speed stirring dryer with a stirring paddle inside the equipment, so that the wet material can fully contact the heat carrier and the hot surface under the stirring of the paddle, so as to achieve the purpose of drying. The structure is generally horizontal, double-axis or four-axis. The paddle dryer is divided into hot air type and conduction type.
The hot air type means that the heat carrier and the material to be dried are contacted and dried. In the conduction type, the heat carrier does not directly contact the material to be dried, but the hot surface and the material are in contact with each other. The advantages of the conduction type are that the material is not easily polluted, the exhaust volume is small, the thermal efficiency is high, and the volume is relatively small, which is conducive to saving energy and preventing air pollution.
The blade dryer has a low speed, and the crushing of granular and flake materials is very small. The paddle dryer has wide adaptability to materials, large operation flexibility, and the residence time of materials can be adjusted from minutes to hours.
