What is the scope of application of flash dryer

1. Applicable material form

Paste material

Products such as soy protein, gelatinous starch, and distiller's grains can be quickly dispersed and dried into uniform powder products using a flash dryer, eliminating processes such as crushing and screening.

Mud material

Mud produced through plate and frame pressure filtration or centrifugal dewatering can be efficiently dried through a stirring and crushing system to avoid wall sticking.

Filter cake material

Inorganic salt filter cakes such as boric acid and calcium carbonate have uniform particle size and good flowability after drying, with adjustable final moisture and fineness.

Granular materials

Suitable for sheet-like and strip-shaped particles with good breathability, such as dehydrated vegetables, traditional Chinese medicine slices, and other materials with high moisture content and temperature sensitivity.

2. Applicable industry fields

Inorganic chemical industry field

Boric acid, calcium carbonate, hydroxide: high purity after drying, suitable for industries such as electronics and glass.

Copper sulfate, iron oxide, barium carbonate: used for pigment and catalyst preparation, to avoid oxidation discoloration during the drying process.

Metal hydroxides and heavy metal salts: such as synthetic cryolite, can be directly used for electrolytic aluminum production after drying.

Organic chemical industry field

Pesticide intermediates (such as atrazine): Low temperature drying avoids decomposition of active ingredients and improves product yield.

Dye intermediates (such as anthraquinone and indigo pigment): high color fastness after drying, meeting the needs of the textile industry.

Polymer materials (such as cellulose acetate): excellent solubility after drying, suitable for film and fiber production.

Ceramics

Kaolin, silica, clay: After drying, the particle size distribution is uniform, which improves the density and strength of ceramic products.

Food industry

Soy protein and wheat starch: They have good solubility after drying and are used for thickening meat products and baked goods.

Distilled grains and fruit and vegetable powders: retain nutrients, extend shelf life, and facilitate transportation and storage.

Pharmaceutical industry

Herbal powder: Low temperature drying maintains active ingredients and improves drug bioavailability.

Antibiotic intermediates: The drying process is sterile and meets GMP standards.

3. Adaptability to special materials

Thermally sensitive materials

The drying chamber has a high circumferential gas velocity and a short material retention time (seconds to minutes), effectively preventing the deterioration of heat sensitive materials (such as vitamins and enzyme preparations).

High viscosity materials

Install a scraper on the mixing teeth to prevent material from sticking to the wall; Special air separation devices reduce resistance and ensure smooth drying of high viscosity materials (such as polymer resins).

Materials containing crystalline water

By adjusting the temperature of the hot air and the classifier, crystal water (such as copper sulfate pentahydrate) in the material can be removed to obtain anhydrous products.

4. Typical application cases

White carbon black drying

The Spin Flash Dryer utilizes the dual effects of hot air and thermal radiation to quickly dry white carbon black to a moisture content of ≤ 0.5% and uniform particle size, making it suitable for industries such as tires and coatings.

H-acid drying

In the production of dye intermediates, the yield of flash dryer is 5% higher than that of Spray Dryer. The product has uniform particle size and small water content, which significantly reduces the production cost.

Calcium carbonate drying

After drying, the moisture content of calcium carbonate is ≤ 0.1%, and the fineness can reach 325 mesh, meeting the high-quality requirements of fillers in industries such as papermaking and plastics.