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Horizontal Rotary Vacuum Paddle Dryer
PZG series Horizontal Rotary Vacuum Paddle Dryer is an indirect heating drying processor which gives drying, mixing and breaking effects simultaneously under high vacuum condition. 1. Drying or heating paste, filter cake or powder materials under normal or high vacuum condition; 2. Heating area: 3-200 M2, 3. Drying capacity: 300-15000 L/batch, 4. Working type: Batch or continuous, 5. Heat source: steam, hot water or hot oil
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PZG series horizontal rotary vacuum paddle dryer is an indirect-heating drying processor which gives drying, mixing and breaking effects simultaneously. Wet material is fed through the feed port. The main shaft with hollow discs rotates in different directions to regularly move and mix the material, while vacuum is applied in the dryer and heating medium (steam, hot water or hot thermal oil) is circulated in the jacket of drying chamber and hollow discs. Evaporation of moisture takes place under high vacuum condition and vapors passes through the dust catcher into the condenser, where it is condensed and collected in the receiver tank. Dried material is discharged through discharge valve.
PZG series horizontal rotary vacuum paddle dryer has been widely used in various industries for drying wet materials which have the following properties:
- Powder, slurry, paste and filter cake wet materials;
- Heat sensitive wet materials
- Oxidizing, toxic, explosive wet materials
- Moisture is organic solution and need to be recovered
- High thermal efficiency which can reach 95%
- Heat transfer medium does not contact the product.
- Gas is not used to convey the product. Off-gas flow is minimal.
- Precise control of temperature
- Uniform product quality, thorough mixing and movement of the product
- High heat transfer surface to process volume ratio - reduced floor space
- Easy to operate, requires minimal attention
- Safer than direct drying when processing combustible material
- Simple durable design for easy and low maintenance
Hollow disc
- Considerably increase heating surface
- Mush less welding area than other types of paddle
- Self-cleaning disc can considerably enhance heat transfer
- Small paddles welded on discs with different angles can perfectly mix and move wet materials
Drying chamber with tubular heating jacket
- Max working pressure of heating jacket: 0.9 Mpa
- Max vacuum of drying chamber: 300 Pa
- Tubular heating jacket can ensure very uniform heating
- 80mm mineral wool insulation
Integral bearing seat
- Bearing seat mounted on end-plate to ensure concentricity
- Bearing is equipped with water cooling jacket
- Double-end mechanical seal to ensure high vacuum
Vacuum system
The vacuum system consists of two-stage tubular condenser, buffer tank and piston vacuum pump or pump set to guarantee high vacuum (300-2000 Pa) and recovering rate (95%)