Continuous Drying
Continuous Drying covers SINOTHERMO's spray, flash, fluidized-bed, belt, kiln and vacuum-conduction dryers that run material through in an unbroken stream. This gives steady, high-volume throughput matched to production schedules, rather than the loading and unloading downtime discrete batches require.
CD Dryer
Categories: Conduction and Vacuum Dryer
Continuous Drying for Liquid and Paste-like Materials:
The CD Dryer is designed for continuous drying of liquids and pastes. Utilizing indirectly heated discs, the dryer efficiently transfers heat to the material, creating a thin layer for rapid evaporation. This method ensures effective drying and consistent product quality.
- Input:
- Liquid and Pasty Materials
- Output:
- Dried Solids (flake or powder, depending on application)
- Heat Transfer Coefficient:
- Overall heat transfer coefficient: 2,300W/m²k
- Thermal Efficiency:
- 80 to 85% thermal efficiency
LPG-Centrifugal Spray Dryer
Categories: Convection Dryer, Spray Dryer
Advanced Liquid-to-Powder Process:
A high-speed centrifugal atomizer at the tower's peak transforms materials into super fine liquid drops that dry quickly upon contact with hot air — perfect for precise particle size, moisture, density and shape standards.
- Input:
- Solutions, Emulsions, Suspensions
- Output:
- Powder with 3%-5% moisture content
- Temperature:
- Inlet air temperature range of 150°C to 500°C
YPG-Pressure Spray Dryer
Categories: Convection Dryer, Spray Dryer
High-Pressure Nozzle Atomization:
The Pressure Spray Dryer atomizes feed liquid through high-pressure nozzles, producing coarser and denser granules with excellent flowability — widely used for foods, chemicals and dairy powders.
- Input:
- Solutions, Emulsions, Suspensions
- Output:
- Coarse powder or granules with 3%-5% moisture content
- Temperature:
- Inlet air temperature range of 150°C to 350°C
XSG-Spin Flash Dryer
Categories: Convection Dryer, Flash Dryer
One-Step Continuous Flash Drying:
The Spin Flash Dryer dries pastes and filter cakes in a single continuous step. Hot air and mechanical agitation break up material while drying — no pre-crushing needed.
- Input:
- Pastes, Filter Cakes, Thick Slurries
- Output:
- Powder with 3%-8% moisture content
- Temperature:
- Inlet air temperature range of 150°C to 350°C
PLG-Vacuum Vertical Plate Dryer
Categories: Conduction and Vacuum Dryer
Effective Continuous Vacuum Conduction Dryer:
The Vacuum Plate Dryer incorporates discs for efficient heating, providing a generous heating surface in a compact layout. It excels in vacuum operations, ideal for managing flammable, explosive and heat-sensitive materials.
- Input:
- Loose powder, Granules
- Output:
- Powder, Granules with 3%-8% moisture content
- Temperature:
- Heat source temperature <200°C
DW-Belt Dryer
Categories: Convection Dryer
Continuous Convection Dryer with Mesh Belt:
The Belt Dryer can be configured with single or multiple mesh-belt layers, spreading material evenly for directional hot-air drying. Belt speed adjusts to each material's temperature and moisture content, so it runs at comparatively low temperatures while continuously processing large batches.
- Input:
- Permeable solids in sheets, strips, granules or blocks
- Output:
- Sheet, strip, granule or block solids with 3%–8% moisture content
- Temperature:
- Inlet air temperature < 200°C
- Additional Feature:
- Cooling
ZLG-Horizontal Vibrating Fluidized Bed Dryer
Categories: Convection Dryer, Fluidized Bed Dryer, Vibrating Dryer
Continuous Drying Solution for Granular Materials:
Operating on the principle of fluidization combined with vibration, the Vibrating Fluid Bed Dryer processes granules by circulating them on heated air that dries them evenly. This approach minimizes surface damage, prevents pollution thanks to its enclosed design, and gives granules time to settle — facilitating stable, continuous production.
- Input:
- Granules with moisture content < 20%
- Output:
- Granules with 1%–5% moisture content
- Temperature:
- Inlet air temperature < 200°C
- Additional Feature:
- Cooling
HZG-Rotary Kiln
Categories: Convection Dryer
Perfect for Large-Scale, Continuous Drying:
Wet material enters at one end of the Rotary Kiln, where internal flights agitate it and blend it thoroughly with hot air. This elongated drum dryer, spanning many metres, can process hundreds of tons per hour, and its drum speed adjusts from 1 to 10 RPM to suit different requirements.
- Input:
- Granular materials
- Output:
- Granules with 3%–5% moisture content
- Temperature:
- Inlet air temperature range of 40°C to 350°C
- Additional Feature:
- Mixing
HG/GT-Vacuum Drum Scraper Dryer
Categories: Conduction and Vacuum Dryer
Continuous Drying for Paste-like Materials:
In operation, the rotating drum picks up material as a thin film. Heat transfers from the inner to the outer wall, effectively evaporating moisture, while an internal scraper continuously converts the dried film into flake-like product in a short time.
- Input:
- Pasty, Viscous and Thick Materials
- Output:
- Flake-like Solids with 5%–8% moisture content
- Temperature:
- Inlet air temperature range of 120°C to 260°C
- Additional Feature:
- Cooling
GXP-Closed Circulation Spray Dryer
Categories: Convection Dryer, Spray Dryer
Optimal Drying for Sensitive Materials:
This explosion-proof spray dryer operates in a sealed environment, using inert gas as the drying medium to fully recover solvents from raw materials. The recyclable drying medium provides superior protection for sensitive materials.
- Input:
- Solutions, Emulsions, Suspensions
- Output:
- Powder with 3%–8% moisture content
- Temperature:
- Inlet air temperature range of 100°C to 300°C
- Suitability:
- Anaerobic, explosion-proof and low-temperature conditions
ZLPG-Extract Spray Dryer
Categories: Convection Dryer, Spray Dryer
Specialized Spray Dryer for Extracts:
The Extract Spray Dryer features a cylinder equipped with a cooling system specifically designed for drying extracts while keeping wall temperatures below 80°C. It includes an airbrush that cleans the walls during operation to prevent adhesion and protect the powder from burning.
- Input:
- Extracts (Liquid)
- Output:
- Extracts (Powder) with 3%–8% moisture content
- Temperature:
- Inlet air temperature range of 140°C to 180°C
- Additional Features:
- Freeze dehumidification, Air brush for tower cleaning
Pneumatic Flash Dryer
Categories: Convection Dryer, Flash Dryer
Integrated Handling for Heat-Sensitive, Loose Solid Materials:
Designed for temperature-sensitive and slightly viscous materials, this equipment offers a wide range of uses for loose solid materials. Its modular design allows drying and grinding stages to be added to meet varying customer requirements.
- Input:
- Non-viscous, loose solid materials
- Output:
- Powder, granules, with 3%–6% moisture content
- Temperature:
- Inlet temperature < 200°C
- Additional Feature:
- Grinding
XF-Horizontal Fluidized Bed Dryer
Categories: Convection Dryer, Fluidized Bed Dryer
Versatile Continuous Drying for Granules and Powder:
The Horizontal Fluidized Bed Dryer aerates damp materials with an upward air stream to dry or cool them. Built for continuous manufacturing, it offers residence times from a few seconds to minutes, ensuring effective processing.
- Input:
- Powders and Granules, moisture < 20%
- Output:
- Powders and Granules, moisture 3%–5%
- Temperature:
- Inlet air temperature < 100°C
- Additional Feature:
- Cooling
LZG-Spiral Vibrating Dryer
Categories: Convection Dryer, Vibrating Dryer
Method for Drying Pellets and Granules:
The Spiral Vibrating Dryer dries materials by using centrifugal vibration and gravity to move them in a bouncing path from top to bottom along a spiral bed. Fresh hot air enters from below, interacting thoroughly with the material for heat and mass transfer before leaving through the top — ensuring even drying.
- Input:
- Granular, short-rod and spherical solids with < 20% moisture
- Output:
- Granules, short rods and spheres with 3%–5% moisture
- Temperature:
- Inlet air temperature < 100°C
- Additional Feature:
- Cooling
Continuous Designs Across Feed Types
Spray dryers (LPG, YPG, GXP, ZLPG) continuously atomize liquid feed into dry powder; flash dryers (XSG, Pneumatic) continuously convey wet cake through hot air; fluidized-bed (XF, ZLG) and belt (DW) dryers move granular and bulk material continuously; the rotary kiln (HZG) and vacuum-conduction units (CD, PLG, HG/GT, ZYG) handle continuous processing of bulk solids and pastes.
Why Manufacturers Choose Continuous Over Batch
Steady throughput matches high-volume production schedules without batch-to-batch downtime. Consistent residence time gives more uniform moisture content across the full production run. Lower labor overhead per unit of output than loading and unloading discrete batches.
Explore More
Convective Drying →
The direct hot-air-contact drying principle behind many continuous dryer types.
Cooling →
A common downstream step after continuous drying to bring product to handling temperature.
Conduction Drying →
The heat-transfer-through-contact alternative available in some continuous configurations.
