Product Introduction

The Disc Continuous Dryer is an efficient heat-conduction continuous drying equipment. Its unique structure and working principle determine its high thermal efficiency, low energy consumption, small footprint, simple configuration, convenient operation and control, and good operating environment. It is widely used in the drying operations of industries such as chemicals, pharmaceuticals, pesticides, food, feed, and agricultural and sideline products processing. It has received positive feedback in practical applications across various industries. Currently, we produce three types: atmospheric pressure, sealed, and vacuum, in sizes of 1200, 1500, 2200, and 3000, with options A (carbon steel), B (contact material parts are all stainless steel), and C (based on B, with added steam piping, main shaft, and bracket made of stainless steel, and the cylinder and cover top lined with stainless steel). These are available in three material types, with drying areas ranging from 4 to 180 m², totaling hundreds of models in the series. We also offer a range of auxiliary equipment to match, meeting the drying needs of various materials.

Operating Principle
Wet material is continuously added to the top layer of the dryer's drying tray from a feed hopper. The scraper arm, equipped with a rake blade, rotates to continuously turn the material over. The material flows along an exponential spiral over the surface of the drying tray, with the material on the small tray being moved to the outer edge and falling into the outer edge of the larger tray below. The material in the larger tray moves inward and falls through the middle outlet into the next layer of smaller trays. The trays of different sizes are alternately stacked vertically, allowing the material to continuously pass through the entire dryer. The hollow drying trays are filled with a heating medium, which can be saturated steam, hot water, or thermal oil, and the medium enters from one end and exits from the other. Once dried, the material falls to the bottom of the tray and is moved to the discharge point by the scraper blade. Moisture escapes from the material and is discharged through a moisture exhaust port on the lid. The moisture from the vacuum tray dryer is discharged through a vacuum pump port on the lid. The dried material discharged from the bottom can be directly packaged. By adding auxiliary equipment such as finned heaters, solvent recovery condensers, bag dust collectors, dry material blending mechanisms, induced draft fans, etc., the drying capacity can be increased, allowing for the drying of paste-like and heat-sensitive materials, easy recovery of solvents, and the ability to perform thermal decomposition and reaction operations.

Performance Features
(1) Easy to adjust and versatile
Achieve optimal drying by adjusting the thickness of the material layer, spindle speed, number of rakes, and the type and size of the rake blades.
Each layer drying tray can be individually heated or cooled through hot or cold medium, providing precise and easy temperature control of the material.
The material's dwell time can be accurately adjusted.
The material flow is singular and free of mixing back, it is dried evenly, with stable quality and does not require further mixing.
(2) Easy to operate, user-friendly
The operation of starting and stopping the dryer is extremely simple.
After halting the raw material supply, the conveying material scraper blades can quickly empty the material from the drier.
Through the viewing port of the special inspection door, the inside of the equipment can be cleaned and observed very meticulously.
(3) Low energy consumption
The material layer is thin, the main shaft speed is low, the power required for the material conveying system is small, and the electrical consumption is low.
Drying by heat conduction, with high thermal efficiency and low energy consumption.
(4) Good operating environment, recyclable solvents, dust emissions meet requirements
◎ Atmospheric pressure type: Due to low air flow velocity inside the equipment and a humidity distribution pattern that is higher at the top and lower at the bottom, dust particles are difficult to rise to the top of the equipment. Therefore, the exhaust gases discharged from the dehumidification outlet at the top almost contain no dust.
◎Sealed Type: Equipped with a solvent recovery unit, it allows for convenient recovery of organic solvents from moisture-laden gases. The solvent recovery unit is simple and has a high recovery rate. For materials that are flammable, explosive, toxic, and easily oxidizable, nitrogen can be used as the moisture-laden gas for closed-loop circulation, ensuring safe operation. Particularly suitable for drying flammable, explosive, and toxic materials.
Vacuum Type: A disk dryer that operates under vacuum conditions, particularly suitable for drying heat-sensitive materials.
(5) Easy installation, minimal space required
The dehumidifier is factory-assembled and ready for shipment. It only requires hoisting into place, with easy installation and positioning.
Due to the dry plate layer arrangement and vertical installation, even with a large drying area, the footprint is minimal.
Suitable materials
Drying, Pyrolysis, Combustion, Cooling, Reaction, Sublimation
Organic Chemical Products, Inorganic Chemical Products, Pharmaceuticals & Food, Feed & Fertilizer
Technical Specifications(Dry Plate)
Design Pressure: Typically 0.4 MPa, up to 1.6 MPa.
Pressure Rating: Typically ≤0.4 MPa, up to 1.6 MPa.
Heating Medium: Steam, hot water, thermal oil. Use hot water for heating at 100°C, saturated steam or superheated steam at ≤0.4MPa for temperatures between 100°C and 150°C, thermal oil for temperatures between 150°C and 320°C, and electric, thermal oil, or molten salt heating methods for temperatures above 320°C.
Material Conveyance System
Spindle Speed: 1-10 RPM, electromagnetic or variable frequency stepless speed control.
◎Rake Arms: Each drying tray is equipped with 2 to 8 rake arms fixed to the main shaft.
◎ Rake Blades: Joints on the rake arm, capable of floating up and down with the disk surface to maintain contact, available in various forms.
◎Rolling: For materials prone to caking and requiring crushing, adding a rolling mechanism at the appropriate location can enhance heat transfer and drying processes.
(3) The housing is available in three types: atmospheric pressure, sealed, and vacuum.
◎ Atmospheric Type: Available in cylindrical or octagonal prism shapes, with either a whole or split structure. The main inlet and outlet pipes for the heating medium can be either inside or outside the shell.
◎ Sealed Type: Cylindrical shell body, capable of withstanding an internal pressure of up to 5Kpa. The main inlet and outlet pipes for the heating medium can be located either inside or outside the shell.
Vaccum Type: Cylinder-shaped shell, designed with a pressure of 0.1 Mpa, with the main inlet and outlet pipes for the heating medium located inside the shell.
(A) Air Heater
Typically used in scenarios with high evaporation rates to enhance drying efficiency.

Specs and Parameters

Image Gallery

Engineering Case Studies

Trimer Material Precursor Special Plate-Type Dry