Essiccazione per convezione
L'Essiccazione per convezione comprende gli essiccatori a spruzzo, flash, a vassoi, a nastro e a forno di SINOTHERMO, che trasferiscono calore tramite contatto diretto con aria calda sul materiale. Questo è il principio di essiccazione più rapido e diffuso nella gamma di prodotti, applicabile a liquidi, sospensioni, granuli e solidi sfusi.
LPG-Centrifugal Spray Dryer
Categorie: Essiccatore a convezione, Essiccatore Spray
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
Categorie: Essiccatore a convezione, Essiccatore Spray
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
Categorie: Essiccatore a convezione
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
Categorie: Essiccatore a convezione, Essiccatore 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
Categorie: Essiccatore a convezione
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
Categorie: Essiccatore a convezione
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
Categorie: Essiccatore a convezione, Essiccatore Spray
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
Categorie: Essiccatore a convezione, Essiccatore Spray
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
Categorie: Essiccatore a convezione, Essiccatore 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
Categorie: Essiccatore a convezione, Essiccatore Vibrante
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
Contatto diretto con aria calda nei modelli a spruzzo, flash e a forno
L'essiccazione per convezione trasferisce calore mediante contatto diretto tra aria calda e materiale — gli essiccatori a spruzzo (LPG, YPG, GXP, ZLPG) atomizzano i liquidi nel flusso d'aria, gli essiccatori flash (XSG, Pneumatico) disperdono il panello umido in un flusso d'aria calda ad alta velocità, mentre gli essiccatori a vassoi (CT-C), a nastro (DW), a forno (HZG) e vibranti (LZG) fanno avanzare i solidi sfusi attraverso un ambiente di aria calda.
Vantaggi dello scambio termico per convezione
Elevate velocità di essiccazione poiché l'aria calda entra a contatto diretto con il materiale, anziché attraverso una superficie riscaldata. Applicabile a un'ampia gamma di forme di alimentazione, dai liquidi e sospensioni ai granuli e solidi sfusi. Si adatta facilmente da piccole essiccazioni discontinue a vassoi a grandi impianti continui a forno o a nastro.
Scopri di più
Continuous Drying →
Molti tipi di essiccatori a convezione funzionano anche in modalità continua.
Cooling →
Una fase a valle comune per portare il prodotto essiccato per convezione alla temperatura di movimentazione.
Batch Drying →
Alcuni modelli a convezione, come l'essiccazione a vassoi, operano per lotti discreti.
