Citric acid vacuum disc dryer

Citric acid vacuum disc dryer

working principle

The wet material is continuously added to the first layer of the drying disc on the upper part of the dryer by the feeder, and the rake arm with rake blades rotates to continuously flip the material. The material flows along an exponential spiral over the surface of the drying disc, and the material on the small drying disc is transferred to the outer edge, where it falls onto the outer edge of the large drying disc below. The material moves inward on the large drying disc and falls into the next layer of small drying disc from the middle feeding port. The drying plates of different sizes are arranged alternately up and down, allowing the material to flow continuously through the entire dryer. A hollow drying tray is filled with heating medium, which includes saturated steam, hot water, thermal oil, and high-temperature molten salt. The heating medium enters from one end of the drying tray and exits from the other end. The dried material falls from the last layer of drying tray to the aggregate tray, and is finally transferred to the discharge port by the rake blade for discharge. Moisture overflows from the material and is discharged through the dehumidification port located on the top cover. The moisture of the vacuum disc dryer is extracted through the vacuum port located on the top cover. Dry materials discharged from the bottom layer can be directly packaged. By adding auxiliary equipment such as fin heaters, solvent recovery condensers, bag filters, pre drying machines, induced draft fans, etc., the drying production capacity can be improved. Drying paste like and heat sensitive materials can conveniently recover solvents and perform heating, cooling, calcination, sublimation, pyrolysis, and reaction operations.

feature

（1） Easy regulation and strong applicability
By adjusting the thickness of the material layer, spindle speed, number of rake arms, rake blade type and size, the drying process can be optimized to achieve the desired state.
Each layer of the drying tray can be separately heated or cooled by adding a heating medium or a cooling medium to the material, ensuring accurate and easy temperature control of the material.
The retention time of materials can be adjusted.
The material has a single flow direction, no backmixing phenomenon, uniform drying, stable quality, and does not require further mixing.
（2） Easy to operate and convenient
The operation of driving and parking the dryer is very simple.
After stopping the feeding, the scraper blades for conveying material can quickly empty the material inside the dryer.
Through the special large inspection door mirror, careful cleaning and observation can be carried out inside the equipment.
（3） Low energy consumption
The material layer is very thin, the spindle speed is low, and the material conveying system requires less power and consumes less electricity.
Drying with conductive heat results in high thermal efficiency and low energy consumption.
（4） Good operating environment, recyclable solvents, and dust emissions meet requirements
Atmospheric pressure type: Due to the low airflow velocity and low humidity distribution inside the equipment, it is difficult for dust to float to the top of the equipment. Therefore, the exhaust gas discharged from the top humidity outlet contains almost no dust.
Sealed type: equipped with a solvent recovery device, which can easily recover organic solvents from wet gas. The solvent recovery device is simple and has a high recovery rate. For flammable, explosive, toxic, and easily oxidizable materials, nitrogen can be used as a carrier gas for closed-loop circulation to ensure safe operation. Specially suitable for drying flammable, explosive, and toxic materials.
Vacuum type: A disc dryer operated in a vacuum state, particularly suitable for drying heat sensitive materials.
（5） Easy installation and small footprint
The dryer is shipped as a whole and only needs to be lifted into place for easy installation and positioning.
Due to the layered arrangement and vertical installation of the drying tray, even if the drying area is large, the footprint is also very small.

Scope of application

Potassium carbonate, bio potassium fertilizer, protein feed, mycelium, bran, distiller's grains, grains, seeds, herbicides, cellulose, feed, etc.

Anthraquinone dye vacuum disc dryerProduct Parameters: