Main features
1. The material retention time is adjustable, and it can process
high-water-content materials and obtain extremely low-water-content
materials;
2. Typical conduction drying method, energy-saving, large
conduction coefficient, and high thermal efficiency;
3. Since all the required heat is supplied by the hollow blades and
the jacket, a small amount of hot air can be added to reduce the
exhaust humidity. The dust entrainment is low, the tail gas is easy
to handle, and no auxiliary equipment such as dust removal is
required.
4. The paddles have self-cleaning ability. The paddles rotate in
opposite directions, and the two inclined surfaces of the blades
repeatedly stir, compress, relax and push the materials, so that
the pages have unique self-cleaning ability, the heating surface is
constantly updated, and the heat transfer coefficient of the paddle
dryer is higher than any other conduction drying method.
Advantages
Compact structure: The main heat transfer component of the dryer is
the shovel-shaped paddles, which are densely and cross-arranged on
a fixed rotating shaft at a specified interval, so the heat
transfer per unit volume is relatively high. For this reason, the
structure of this equipment is very compact and occupies a small
area.
High heat transfer efficiency: Due to the continuous mixing of raw
materials, the relatively rotating shovel-shaped blades and the
inclined blade surfaces, as well as the heating and cooling of the
machine body, all surfaces in contact with the product can transfer
heat energy evenly.
Self-cleaning performance: Since the movement of the blades is
relatively rotating, they have a continuous self-cleaning effect on
the nearby inner surfaces. Products that are stuck to each other
and accumulated on the blades can be removed and re-enter the
production process.
Simple control: The drying process and residence time can be easily
checked, controlled and adjusted. They can be set and adjusted
individually according to the physical properties of the dried
product, the number of shafts or blades, the speed, the temperature
of the heat transfer body and the drying time.
Less dust and odor: Since the gas flow used in the drying process
is very small, the dust and odor that can be generated are also
very small. Therefore, the vacuum cleaner or deodorizer used with
it is also small or does not need to be used at all.
Suitable for drying products with high humidity: Due to the use of
paddle-type drying elements and continuous mixing and stirring,
materials with high viscosity and high humidity can be dried. Its
structural design avoids the accumulation of products in dead
corners and overheating or corruption caused by product
accumulation.
Almost no wear and material loss: the speed of the paddle is very
low, only 10 to 40 revolutions per minute, which effectively avoids
abrasion and rapid wear of machine tools and equipment caused by
abrasion. In addition, the risk of metal material rupture is
reduced to a minimum.
Applicable materials
1. Inorganic chemical industry: calcium nitrate, calcium sulfate,
papermaking calcium, calcium carbonate, magnesium hydroxide, carbon
black, iron black, iron red, soda ash, soda ash, etc.;
2. Organic chemical industry: dyes, industrial plastics,
polystyrene, polypropylene, high and low density polyethylene,
polypropylene, etc.;
3. Smelting industry: nickel concentrate powder, sulfur concentrate
powder, tar dephenolization, etc.;
4. Food and medical industry: starch, medicine, salt, protein,
etc.;
5. Others: sludge, waste residue, chicken feed, distiller's grains,
etc.
