Production and assembly of 3-meter X24 disc~disc dryer in progress

PLG series disc continuous dryer

Product Introduction
Disc continuous dryer is an efficient conductive continuous drying equipment. Its structure and working principle determine that it has the characteristics of high thermal efficiency, low energy consumption, small footprint, simple configuration, convenient operation and control, and good operating environment. It is widely used in drying operations in industries such as chemical, pharmaceutical, pesticide, food, feed, and agricultural and sideline product processing. Highly praised in practical applications across various industries. We currently produce three types of products: atmospheric pressure, sealed, and vacuum, with four types: 1200, 1500, 2200, and 3000. A (carbon steel), B (stainless steel uniformly distributed in the contact material part), and C (on the basis of B, stainless steel is added to the steam pipeline, main shaft, and bracket, and stainless steel is lined inside the cylinder and cover). Three types of materials, with a drying area of 4-180m2, a series of hundreds of models of products, and can provide matching auxiliary equipment to meet the needs of users for drying various materials.
working principle
The wet material is continuously added to the first layer of drying disc on the upper part of the dryer by the feeder, and the rake arm with rake blades rotates to make the rake arm rotate and make the rake blades 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 discharge 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, and thermal oil. The heating medium enters from one end of the drying tray and exits from the other end. The dried material falls from the bottom drying tray to the bottom of the shell, and is then transferred to the discharge port by the rake blade for discharge. Moisture escapes from the material and is discharged through the dehumidification port located on the top cover. The moisture in the vacuum disc dryer is discharged through the vacuum pump 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, dry material mixing mechanisms, and induced draft fans, the production capacity of drying can be improved. Drying paste like and heat sensitive materials can facilitate solvent recovery and enable pyrolysis and reaction operations.
Performance Characteristics
（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.
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 residence 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 material scraper blade can quickly empty the material in 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 in the 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.