Energy-Saving Compact Rotary Spin Flash Dryer with 10–230kW Power Range for Heat-Sensitive Raw Materials

Hot air tangentially enters the dryer’s bottom chamber to generate a strong swirling airflow powered by the built-in agitator. Paste feedstock is conveyed into the unit via a screw feeder; high-speed stirring blades disintegrate the material through intense impact, friction and shearing action. Agglomerated lumps get fragmented immediately to achieve full contact with hot air for rapid dehydration. Dried fine particles rise upward along the hot air flow. A built-in classifying ring intercepts oversized granules, while eligible fine powder passes through the ring’s central outlet and is recovered by cyclone separators and bag dust collectors. Particles insufficiently dried are thrown toward the cylinder wall by centrifugal force and re-crushed for secondary drying.

• All-in-one integration of vortex circulation, fluid bed dispersion, pulverization and particle sorting
• Mini space occupation paired with powerful continuous large-volume processing capability
• High thermal efficiency and reduced energy loss
• 5–60 second short residence time ideal for heat-sensitive substances
• Sealed negative-pressure operation with closed circulation, high productivity and no environmental pollution

• Organic Compounds: Atrazine (pesticide), Lead laurate, Benzoic acid, Captan fungi-cide, Sodium oxalate, Cellulose acetate
• Dyes & Pigments: Anthraquinone, Iron oxide black, Indigo, Titanium hydroxide, Zinc sulfide, Azo dye intermediates
• Inorganics: Borax, Calcium carbonate, Copper sulfate, Barium carbonate, Antimony trioxide, Synthetic cryolite
• Food Ingredients: Soy protein, Gelatinized starch, Brewer's grains, Wheat sugars, Corn starch