Secado por convección
Secado por Convección abarca los secadores por atomización, flash, bandejas, banda y horno de SINOTHERMO que transfieren calor mediante contacto directo de aire caliente con el material. Este es el principio de secado más rápido y ampliamente utilizado en toda la gama de productos, funcionando tanto con líquidos y suspensiones como con gránulos y sólidos a granel.
LPG-Centrifugal Spray Dryer
Categorías: Secador de convección, Secador por atomización
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
Categorías: Secador de convección, Secador por atomización
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
Categorías: Secador de convección
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
Categorías: Secador de convección, Secador 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
Categorías: Secador de convección
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
Categorías: Secador de convección
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
Categorías: Secador de convección, Secador por atomización
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
Categorías: Secador de convección, Secador por atomización
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
Categorías: Secador de convección, Secador 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
Categorías: Secador de convección, Secador vibratorio
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
Contacto Directo de Aire Caliente en Diseños de Atomización, Flash y Horno
El secado por convección transfiere calor mediante contacto directo entre el aire caliente y el material: los secadores por atomización (LPG, YPG, GXP, ZLPG) atomizan líquidos en la corriente de aire, los secadores flash (XSG, Neumático) dispersan la torta húmeda en aire caliente de alta velocidad, y los secadores de bandejas (CT-C), de banda (DW), de horno (HZG) y vibratorios (LZG) desplazan sólidos a granel a través de un entorno de aire caliente.
Ventajas de la Transferencia de Calor por Convección
Altas velocidades de secado, ya que el aire caliente entra en contacto directo con el material en lugar de a través de una superficie calentada. Funciona con una amplia variedad de formas de alimentación, desde líquidos y suspensiones hasta gránulos y sólidos a granel. Se escala fácilmente desde el secado por lotes en bandejas a pequeña escala hasta grandes instalaciones continuas de horno o banda.
Explorar más
Continuous Drying →
Muchos tipos de secadores por convección también funcionan en modo continuo.
Cooling →
Una etapa posterior habitual para llevar el producto secado por convección a la temperatura de manipulación.
Batch Drying →
Algunos diseños convectivos, como el secado en bandejas, funcionan por lotes discretos.
