ZPG Series Vibration Dryer 300L 450L Vacuum Fluid Bed Rake Dryer
Price:
Negotiable
MOQ:
1pcs
Delivery Time:
5-8 weeks
Product Description
ZPG Series Vacuum Rake Dryer
The ZPG Series Vacuum Rake Dryer is an advanced horizontal intermittent vacuum drying machine designed for efficient low-temperature drying of heat-sensitive, oxidizable, and hazardous materials. This innovative vacuum rake dryer utilizes conduction evaporation combined with a scraper agitator system that continuously removes material from heated surfaces, creating a circulating flow within the vessel while moisture is extracted by a vacuum pump.
Ideal for pharmaceutical, food, and chemical industries, this vacuum drying equipment excels at processing paste-like, slurry, and powder materials that require gentle drying conditions with organic solvent recovery capabilities.
Key Features and Benefits
Large-Scale Jacket Heating for Maximum Efficiency
- Large heat transfer surface maximizes thermal contact with materials
- High thermal efficiency reduces energy consumption per batch
- Uniform heat distribution prevents hot spots and material degradation
- Low-temperature operation perfect for heat-sensitive pharmaceutical and food products
Advanced Agitator System for Continuous Circulation
- Continuously removes material from heated surfaces
- Creates continuous circulating flow within the vessel
- Ensures uniform heat exposure for all material particles
- Prevents material sticking and caking on heat transfer surfaces
- Enables smooth drying of slurry, paste, and viscous materials
Superior Vacuum Performance for Safe Operation
- Vacuum range: -0.09 to -0.096 MPa
- Oxygen control minimizes oxidation risk for sensitive materials
- Solvent recovery captures and recycles organic solvents efficiently
- Safety features ideal for explosive, toxic, and strongly irritating materials
Variable Speed Control for Process Optimization
- Speed range: 6-30 RPM (adjustable based on material characteristics)
- Motor power: 4-15 kW depending on model size
- Process flexibility optimizes agitation for different material viscosities
- Gentle handling protects fragile crystal structures and particles
Working Principle
The ZPG vacuum drying machine operates through a sophisticated conduction evaporation process:
- Material Loading: Wet material (paste, slurry, or powder) is loaded into the horizontal cylindrical vessel through the top inlet.
- Jacket Heating: Thermal medium (hot water ≤0.3 MPa or steam) circulates through the jacket, heating the vessel wall and internal heating surfaces.
- Agitation & Circulation: The rotating rake agitator with scraper blades continuously moves material along the heated surfaces, preventing adhesion and creating a circulating flow pattern.
- Vacuum Evaporation: Under high vacuum conditions (-0.09 to -0.096 MPa), moisture evaporates at lower temperatures, protecting heat-sensitive materials.
- Vapor Extraction: Water vapor and solvent vapors are continuously extracted by the vacuum pump system.
- Solvent Recovery: Organic solvents can be condensed and recovered through an external condensation system.
- Discharge: Dried material is discharged through the bottom outlet valve once the target moisture content is achieved.
Technical Specifications
| Model | Working Volume (L) | Heating Area (m²) | Agitator Speed (RPM) | Motor Power (kW) | Jacket Pressure (MPa) | Vacuum Level (MPa) |
|---|---|---|---|---|---|---|
| ZPG-500 | 300 | 6.0 | 6-30 (Stepless) | 4.0 | ≤0.3 | -0.09～-0.096 |
| ZPG-750 | 450 | 7.6 | 6-30 (Stepless) | 5.5 | ≤0.3 | -0.09～-0.096 |
| ZPG-1000 | 600 | 9.3 | 6-30 (Stepless) | 5.5 | ≤0.3 | -0.09～-0.096 |
| ZPG-1500 | 900 | 12.3 | 6-30 (Stepless) | 7.5 | ≤0.3 | -0.09～-0.096 |
| ZPG-2000 | 1200 | 14.6 | 6-30 (Stepless) | 11.0 | ≤0.3 | -0.09～-0.096 |
| ZPG-3000 | 1800 | 19.3 | 6-30 (Stepless) | 15.0 | ≤0.3 | -0.09～-0.096 |
Note: Water evaporation capacity varies based on material characteristics and heating/exit temperatures. Specifications subject to change without notice.
Ideal Applications
Pharmaceutical Industry
- Heat-sensitive API (Active Pharmaceutical Ingredients)
- Antibiotics and enzyme preparations
- Traditional Chinese medicine extracts
- Pharmaceutical intermediates requiring solvent recovery
Food & Beverage Industry
- Food additives and flavorings
- Protein powders and extracts
- Natural colorants and pigments
- Low-temperature drying for nutritional preservation
Chemical Engineering
- Organic and inorganic pigments
- Pesticide intermediates
- Polymer resins and powders
- Fine chemicals requiring high purity
Special Applications
- Oxidizable materials that degrade when exposed to oxygen
- Explosive solvent-containing materials requiring inert atmosphere
- Toxic hazardous substances requiring closed-system processing
- Materials processed with recoverable organic solvents
Technology Comparison
| Feature | Vacuum Rake Dryer (ZPG) | Double Cone Dryer (SZG) | Vacuum Paddle Dryer |
|---|---|---|---|
| Material Form | Paste, Slurry, Powder | Powder, Granules | Paste, Sludge, Powder |
| Operation Mode | Intermittent (Batch) | Intermittent (Batch) | Continuous/Batch |
| Heat Transfer | Conduction (Jacket) | Conduction (Jacket) | Conduction (Jacket + Blades) |
| Agitation | Scraper Rake | Tumbling Rotation | Hollow Paddle Blades |
| Best For | Viscous Pastes, Heat-Sensitive | Free-Flowing Powders | High-Viscosity Sludge |
| Solvent Recovery | Excellent | Good | Excellent |
Key Advantages
| Advantage | Benefit |
|---|---|
| Low-Temperature Drying | Protects heat-sensitive materials from thermal degradation |
| Closed-System Design | Prevents contamination and protects operator safety |
| Solvent Recovery | Reduces operational costs and environmental impact |
| Uniform Drying | Agitator ensures consistent moisture removal throughout the batch |
| Easy Cleaning | Smooth interior surfaces facilitate CIP (Clean-in-Place) procedures |
| Flexible Operation | Variable speed control adapts to different material characteristics |
| Energy Efficient | Conduction heating minimizes heat loss compared to convection dryers |
Professional Vacuum Drying Solutions
The ZPG Series Vacuum Rake Dryer represents the optimal solution for industries requiring gentle, efficient, and safe drying of sensitive materials. With its robust construction, precise temperature control, and superior vacuum performance, this vacuum drying machine delivers consistent product quality while minimizing operational costs.
Whether you need a laboratory-scale unit or a large industrial vacuum rake dryer for full-scale production, our engineering team provides complete system design, installation support, and comprehensive after-sales service.
Contact us today for a customized vacuum drying solution tailored to your specific material processing requirements.
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Get in Touch
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Company
Jiangsu Shangjin Drying Technology Co., Ltd.
Location
Room 201, Building 1, No. 232-3, Sanhuangmiao Village Committee, Zhenglu Town, Tianning District, Changzhou City, Jiangsu Province
Contact Person
Yang