Working principle

The wet material self-feeder is continuously added to the drying disc of the first layer of the dryer, and the rake arm with the rake blade is rotated to make the rake blade continuously turn over the material. The material flows through the surface of the drying tray along the exponential helix, and the material on the small drying tray is transferred to the outer edge, and on the outer edge falls to the outer edge of the large drying tray below, where the material moves inward and falls through the middle blanking port into the next layer of small drying tray. The size of the drying tray is arranged alternately up and down, so that the material can flow continuously through the entire dryer. The heating medium in the form of saturated steam, hot water, heat conduction oil and high temperature molten salt is passed into the hollow drying tray. The heating medium enters from one end of the drying tray and is exported from the other end. The dried material falls from the last layer drying tray to the aggregate tray and is finally transferred to the discharge port by the rake leaf. The moisture content is overflowed from the material and discharged through the moisture discharge port on the top cover. The moisture content of the vacuum disc dryer is drawn out through the vacuum port on the top cover. Dry material discharged from the bottom layer can be packaged directly. By adding fin heaters, solvent recovery condensers, pre-dryers, induced draft fans and other auxiliary machines, it can improve its drying production capacity, dry paste and heat-sensitive materials, can easily recover solvents, and can carry out heating, cooling, calcination, sublimation, pyrolysis and reaction operations.

Application field

1) Organic chemical products

Polytetrafluoroethylene resin, anthraquinone, nitroanthraquinone, cyanuric acid, naphthol As, stearate, aniline, nitroaniline, calcium formate, sodium dimethyl pentasulfonate, thiourea, oil-soluble aniline black dye, acid black dye and other organic chemical raw materials and intermediates;

2) Inorganic chemical products

Magnesium carbonate, white gray black, strontium carbonate, barium carbonate, potassium carbonate, Litho Powder, insurance powder, potassium sulfate, microsphere catalyst, copper sulfate, nickel sulfate, ammonium nickelate, sodium molybdate, sodium chloride, cryolite, calcium phosphate, sulfur, etc.;

3) Medicine, pesticides, food

Ampicillin cyanotoxin, salt and intermediates, cefazide, medicinal salt, medicinal magnesium metasilicate, tea, flower extract, ginkgo biloba leaf, chocolate powder, starch, corn germ and other raw materials and pharmaceutical intermediates;

4) Feed and fertilizer

Potassium carbonate, biological potassium fertilizer, protein feed, feed, mycelium, bran, wine lees, grain, seeds, herbicides, cellulose, feed, etc.

Usage characteristics

1) Easy regulation

The drying process can be optimized by adjusting the thickness of the material layer, the spindle speed, the number of rake arms, the type and size of rake blades. Each layer of drying disc can be separately through the cold and hot medium, the material cooling or heating, accurate and easy to control the temperature of the material. Precisely adjust the residence time of the material. The material flow is single, no backmixing phenomenon, uniform drying, no need to mix.

2) Easy to operate

The dryer is very simple to start and stop. After the feed is stopped, the transfer dirt rake can quickly empty the material in the dryer. Through the special large-size view of the door mirror, the equipment can be carefully cleaned and observed.

3) Low energy consumption

The material layer is very thin, the spindle speed is low, the material transfer system requires less power and consumes less power. Conduction heat for drying, high thermal efficiency, low energy consumption.

4) Environmental protection

Atmospheric pressure type: the airflow speed in the equipment is low, and the humidity in the equipment is low, and the dust is difficult to float to the top of the equipment, so the exhaust gas discharged from the top wet outlet almost does not contain dust.

Closed type: equipped with solvent recovery device, can easily recover the organic solvent in the wet gas. Solvent recovery device is simple, high recovery rate, for flammable, explosive, toxic and easily oxidized materials, the protective gas can be used as a wet gas for closed cycle, so that it is safe to operate. Especially suitable for the drying of flammable, explosive and toxic materials.

Vacuum type: Disc dryer operated under vacuum, especially suitable for drying heat-sensitive materials.

5) Easy to install

The dryer is delivered as a whole, transported as a whole, just need to be hoisted into place, and installation and positioning is very easy. Due to the drying tray layer arrangement, vertical installation, even if the drying area is large, the floor area is small.