DZG Series
DZG Single Cone Vacuum Ribbon Dryer
Vertical vacuum dryer with an internal heated ribbon that combines drying and mixing in a single operation.
- Combines drying and mixing in one operation
- Vacuum operation enables low-temperature drying
- Solvent recovery capability
- Vertical stationary body with internal heated ribbon
Drying Equipment8
Standard Models
500-4000 L
Effective Volume Range
11-37 kW
Motor Power Range
Specifications
Technical parameters
| Model | Effective Volume (L) | Full Volume (L) | Heating Area (m²) | Motor Power (kW) | Net Weight (kg) | Stirring Speed (rpm) | Total Height (mm) |
|---|---|---|---|---|---|---|---|
| DZG-500 | 500 | 650 | 4.1 | 11 | 1350 | 50 | 3565 |
| DZG-750 | 750 | 800 | 6.2 | 11 | 1850 | 45 | 3720 |
| DZG-1000 | 1000 | 1220 | 7.2 | 15 | 2300 | 40 | 4165 |
| DZG-1250 | 1250 | 1600 | 9.1 | 15 | 2600 | 38 | 4360 |
| DZG-1500 | 1500 | 1900 | 10.6 | 18.5 | 2900 | 36 | 4590 |
| DZG-2000 | 2000 | 2460 | 13 | 22 | 3600 | 36 | 4920 |
| DZG-3000 | 3000 | 3680 | 19 | 30 | 4100 | 34 | 6160 |
| DZG-4000 | 4000 | 4890 | 22 | 37 | 4450 | 32 | 5520 |
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View specificationsEngineering Advantages
Built for demanding vacuum drying duty
Combined Drying and Mixing
A single vessel performs both drying and mixing, removing the need for a separate mixing step and reducing product handling between operations.
Continuous Ribbon Lift and Cascade
The internally heated ribbon orderly stirs, turns, lifts, and cascades material, keeping it in constant contact with the heated chamber wall.
Sealed Vacuum Environment
A fully enclosed vacuum chamber protects oxygen-sensitive or heat-sensitive materials from contamination and oxidation during drying.
Solvent Recovery Ready
Heated volatile solvent extracted under vacuum can be condensed and recovered, supporting solvent-laden feedstocks.
Low-Temperature Drying
Vacuum operation lowers the required drying temperature, preserving heat-sensitive powders, pastes, and resins.
Simple Stationary Design
The vertical body remains stationary while only the internal ribbon rotates, simplifying seals, drive maintenance, and long-term reliability.
Wide Material Range
Suitable for powders, pastes, and resins, including materials requiring intensive controlled mixing while drying.
Eight Standard Sizes
Effective volumes from 500 L to 4000 L across eight standard models make it straightforward to match capacity to batch size.
Working Principle
The vacuum rake drying cycle
- STEP 01
Charge Material
Powder, paste, or resin material enters the vertical drying chamber through the sealed feed port.
- STEP 02
Seal and Evacuate
The chamber is sealed and the vacuum system draws down pressure, lowering the boiling point of surface moisture and solvent.
- STEP 03
Jacket Conductive Heating
Heating medium circulates through the jacket, conducting heat through the chamber wall to the ribbon and material.
- STEP 04
Ribbon Lift and Cascade
The internally heated ribbon lifts and cascades material in circumferential motion, continuously renewing contact with the heated wall.
- STEP 05
Vapor Extraction and Recovery
Evaporated solvent or moisture is drawn out under vacuum and can be condensed for recovery where required.
- STEP 06
Discharge Product
Once target moisture is reached, the dried and mixed product is released from the vessel outlet.
Application Industries
Industries relying on the ZPG series
Fine & Specialty Chemical
- Resin and paste drying with in-process mixing
- Solvent-wet chemical intermediates
- Oxygen-free drying for reactive materials
Pharmaceutical & Food
- Heat-sensitive powder and paste drying
- Low-temperature vacuum processing
- Enclosed vessel limiting cross-contamination
Confirm documentation requirements with our engineers before specifying for regulated production.
Solvent Recovery Applications
- Materials requiring organic solvent recovery
- Oxygen-free drying for oxidation-sensitive feedstocks
- Closed-loop vapor condensation
Why Choose Ruibo
Reasons processors specify Ruibo
One Vessel, Two Operations
Combining drying and mixing in a single vessel removes a process step and reduces material handling versus separate equipment.
Contamination Control
The sealed vacuum chamber isolates material from ambient air, limiting oxidation and contamination during processing.
Low-Temperature Capability
Vacuum operation lowers the boiling point of moisture and solvent, protecting heat-sensitive powders, pastes, and resins.
Solvent Recovery Ready
Vapor drawn off under vacuum can be condensed and recovered, reducing raw material loss on solvent-wet feedstocks.
Simplified Maintenance
A stationary vertical body with only the internal ribbon rotating simplifies seal maintenance versus rotating-vessel designs.
Eight Standard Sizes
Effective volumes from 500 L to 4000 L across eight standard models make it straightforward to match capacity to production demand.
Materials Handled
FAQ
Common questions about the ZPG series
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