First, the working principle
The wet material self-feeder is continuously added to the drying disc of the first layer above 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 and heat conduction oil is passed into the hollow drying disc. The heating medium enters from one end of the drying disc and is exported from the other end. The dried material falls to the bottom of the shell from the last drying tray and is finally transferred to the discharge port by the rake leaf. The moisture escapes from the material and is discharged by the moisture discharge port on the top cover. The moisture of the vacuum disc dryer is extracted by the vacuum pump port on the top cover. Dry material discharged from the bottom layer can be packaged directly. By adding fin heater, solvent recovery condenser, bag dust collector, dry material remixing mechanism, induced draft fan and other auxiliary machines, it can improve its drying production capacity, dry paste and heat sensitive materials, can easily recover solvent, and can carry out pyrolysis and reaction operations.
Ii. Characteristics
(1) Easy regulation and strong applicability
1, Adjust the thickness of the material layer, spindle speed, the number of rake arms, rake blade type and size can make the drying process to achieve the best.
2, each layer of drying disc can be separately into the hot medium or cold medium, heating or cooling the material, the material temperature control is accurate and easy.
3, the residence time of the material can be accurately adjusted.
4, the material flow is single, no backmixing phenomenon, uniform drying, stable quality, do not need to be mixed.
(2) Simple and easy operation
1. The driving and parking operation of the dryer is very simple.
2. After the feeding is stopped, the rake blade of the conveying material can quickly empty the material in the dryer.
3, through the special large size inspection door and mirror, you can carry out a very careful cleaning and observation of the equipment.
(3) Low energy consumption
1, the material layer is very thin, the spindle speed is low, the material transfer system needs small power, less power consumption.
2, to conduct heat drying, high thermal efficiency, low energy consumption.
(4) The operating environment is good, the solvent can be recovered, and the dust emission meets the requirements
1, atmospheric pressure type: because the gas flow rate in the equipment is low, and the humidity distribution in the equipment is low, 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.
2, 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, nitrogen 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.
3. Vacuum type: disk dryer operated under vacuum, especially suitable for drying heat-sensitive materials.
(5) Easy installation, small footprint
1, the dryer as a whole factory, the whole transport, just lift in place, installation positioning is very easy.
2, due to the drying tray layer arrangement, vertical installation, both the drying area is large, the floor area is small.
3. Main application areas
Dry pyrolytic calcination cooling reaction sublimation
(1) Organic chemical products
Polyvinyl chloride resin, polytetrafluoroethylene resin, fumaric acid, anthraquinone, nitroanthraquinone, p-aminophenol, melamine, cyanuric acid, p-aminobenzenesulfonic acid, antioxidant 168, naphthol As, stearate, aniline, nitroaniline, dipentaerythritol, Chlorinated paraffin, calcium formate, triethylene diamine, sodium benzenesulfonic acid, sodium dimethyl pentasulfonic acid, thiourea, Oil soluble aniline black dye, acid black dye and other organic chemical raw materials and intermediates.
(2) Inorganic chemical products
Light calcium carbonate, active calcium carbonate, nano-scale ultra-fine calcium carbonate, magnesium carbonate, aluminum hydroxide, white gray black, strontium carbonate, barium carbonate, potassium carbonate, Lide Powder, Insurance powder, barium sulfate, potassium sulfate, microsphere catalyst, magnesium hydroxide, copper sulfate, nickel sulfate, nickel amine, sodium molybdate, sodium chloride, cryolite, iron oxide red, lithium hydroxide, nickel hydroxide, zirconium hydroxide, calcium phosphate Sulfur, etc.
(3) Medicine and food
Ampicillin cyanine toxin, salt, L-phenylglycine and intermediates, cefaminothiazine, Ceftriazine, Anaxine, cimetidine, vitamin B12, vitamin C, medicinal salt, medicinal aluminum hydroxide, medicinal magnesium metasilicate, caffeine, 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 with aureomycin, mycelium, bran, wine grains, seeds, herbicides, cellulose, feed calcium hydrogen phosphate, etc.
Four, the use of characteristics
(1) Easy regulation and strong applicability
1, Adjust the thickness of the material layer, spindle speed, the number of rake arms, rake blade type and size can make the drying process to achieve the best.
2, each layer of drying disc can be separately into the hot medium or cold medium, heating or cooling the material, the material temperature control is accurate and easy.
3, the residence time of the material can be accurately adjusted.
4, the material flow is single, no backmixing phenomenon, uniform drying, stable quality, do not need to be mixed.
(2) Simple and easy operation
1. The driving and parking operation of the dryer is very simple.
2. After the feeding is stopped, the rake blade of the conveying material can quickly empty the material in the dryer.
3, through the special large size inspection door and mirror, you can carry out a very careful cleaning and observation of the equipment.
(3) Low energy consumption
1, the material layer is very thin, the spindle speed is low, the material transfer system needs small power, less power consumption.
2, to conduct heat drying, high thermal efficiency, low energy consumption.
(4) The operating environment is good, the solvent can be recovered, and the dust emission meets the requirements
1, atmospheric pressure type: because the gas flow rate in the equipment is low, and the humidity distribution in the equipment is low, 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.
2, 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, nitrogen 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.
3. Vacuum type: disk dryer operated under vacuum, especially suitable for drying heat-sensitive materials.
(5) Easy installation, small footprint
1, the dryer as a whole factory, the whole transport, just lift in place, installation positioning is very easy.
2, due to the drying tray layer arrangement, vertical installation, both the drying area is large, the floor area is small.
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