Séchage par convection
Le Séchage par Convection regroupe les séchoirs à pulvérisation, flash, à plateaux, à bande et à four rotatif de SINOTHERMO, qui transfèrent la chaleur par contact direct de l'air chaud avec la matière. C'est le principe de séchage le plus rapide et le plus répandu de la gamme de produits, applicable aussi bien aux liquides, aux boues, qu'aux granulés et aux solides en vrac.
LPG-Centrifugal Spray Dryer
Catégories : Séchoir à convection, Sécheur par pulvérisation
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
Catégories : Séchoir à convection, Sécheur par pulvérisation
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
CT-C Hot Air Circulation Tray Dryer
Catégories : Séchoir à convection
Hot Air Circulation Batch Drying:
The Hot Air Circulation Tray Dryer warms materials evenly on trays with forced hot-air circulation. Simple, reliable batch drying for granules, powders, herbs and food ingredients.
- Input:
- Granules, Powders, Herbs, Sliced Materials
- Output:
- Dried solids with uniform moisture content
- Temperature:
- Hot air temperature ≤140°C
XSG-Spin Flash Dryer
Catégories : Séchoir à convection, Sécheur flash
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
DW-Belt Dryer
Catégories : Séchoir à convection
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
HZG-Rotary Kiln
Catégories : Séchoir à convection
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
GXP-Closed Circulation Spray Dryer
Catégories : Séchoir à convection, Sécheur par pulvérisation
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
Catégories : Séchoir à convection, Sécheur par pulvérisation
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
Catégories : Séchoir à convection, Sécheur flash
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
LZG-Spiral Vibrating Dryer
Catégories : Séchoir à convection, Sécheur vibrant
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
Contact direct avec l'air chaud dans les conceptions à pulvérisation, flash et four rotatif
Le séchage par convection transfère la chaleur par contact direct entre l'air chaud et la matière — les séchoirs à pulvérisation (LPG, YPG, GXP, ZLPG) atomisent les liquides dans le flux d'air, les séchoirs flash (XSG, Pneumatique) dispersent le gâteau humide dans un air chaud à grande vitesse, tandis que les séchoirs à plateaux (CT-C), à bande (DW), à four rotatif (HZG) et vibrants (LZG) font circuler les solides en vrac dans un environnement d'air chaud.
Avantages du transfert de chaleur par convection
Vitesses de séchage rapides, l'air chaud étant en contact direct avec la matière plutôt qu'à travers une surface chauffée. Adapté à une large gamme de formes d'alimentation, des liquides et boues aux granulés et solides en vrac. S'adapte facilement, du séchage discontinu sur plateaux à petite échelle aux installations continues de four rotatif ou à bande de grande capacité.
En savoir plus
Continuous Drying →
De nombreux types de séchoirs par convection fonctionnent également en mode continu.
Cooling →
Une étape en aval courante pour ramener le produit séché par convection à une température de manipulation adaptée.
Batch Drying →
Certaines conceptions par convection, comme le séchage sur plateaux, fonctionnent par lots discrets.
