LPG Series
LPG Centrifugal Spray Dryer
High-speed centrifugal spray dryer that converts solutions, emulsions, and suspensions directly into powder in seconds.
- CE and ISO 9001 certified manufacturing
- Automatically controlled inlet air temperature
- Electricity, steam, fuel oil, or gas heat sources
- Two-stage dust recovery for consistent powder quality
Drying Equipment5-2000 kg/h
Water Evaporation Range
≥95%
Powder Recovery Rate
140-350°C
Inlet Air Temperature
Specifications
Technical parameters
| Model | Max Water Evaporation (kg/h) | Rotation Speed (rpm) | Spray Disc Diameter (mm) | Max Electric Heating Power (kW) | Overall Dimensions L×W×H (m) | Powder Recovery Rate (%) |
|---|---|---|---|---|---|---|
| LPG-5 | 5 | 25000 | 50 | 9 | 1.8×0.93×2.2 | ≥95 |
| LPG-25 | 25 | 18000 | 100 | 36 | 3×2.7×4.26 | ≥95 |
| LPG-50 | 50 | 18000 | 120 | 63 | 3.7×3.2×5.1 | ≥95 |
| LPG-100 | 100 | 18000 | 140 | 81 | 4.6×4.2×6 | ≥95 |
| LPG-150 | 150 | 15000 | 160 | 99 | 5.5×4.5×7 | ≥95 |
| LPG-200~2000 | 200-2000 | 8000-15000 | 180-340 | Settled by user | Depends on conditions | ≥95 |
Inlet air temperature 140-350°C (automatically controlled); outlet air temperature approximately 80-90°C. Heat source: electricity, or electricity plus steam, fuel oil, or gas. Parameters vary with different materials; subject to final design.
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View specificationsEngineering Advantages
Built for demanding vacuum drying duty
Near-Instant Drying
After atomization, 95-98% of water evaporates almost instantly, making the process well suited to heat-sensitive liquids.
High Product Purity
Fine, uniform atomization yields powder with good flowability, solubility, and consistent purity from batch to batch.
No Crushing or Screening
Finished powder is obtained directly after drying for many liquids, eliminating downstream crushing or screening steps.
Adjustable Product Characteristics
Particle size, bulk density, and residual moisture can be tuned by adjusting atomizer speed and drying conditions.
Uniform Spiral Hot Air Flow
Filtered, heated air enters the top-mounted distributor and moves in a uniform spiral pattern for even contact with atomized droplets.
Flexible Heat Source Options
Heating can be sourced from electricity alone, or electricity combined with steam, fuel oil, or gas, to match local energy availability.
Two-Stage Dust Recovery
A cyclone separator captures the bulk of the product, with a bag filter and optional wet scrubber recovering fines before exhaust.
CE & ISO 9001 Certified
Every unit is manufactured under a CE and ISO 9001 certified quality system for consistent build quality.
Working Principle
The vacuum rake drying cycle
- STEP 01
Feed Liquid Supply
Solution, emulsion, suspension, or pumpable paste is metered from the raw material tank to the atomizer by the feed pump.
- STEP 02
Hot Air Distribution
Filtered air is heated and enters the top of the drying chamber through an air distributor, moving in a uniform spiral pattern.
- STEP 03
Centrifugal Atomization
Feed liquid passes through the high-speed centrifugal atomizer, spraying into extremely fine mist droplets at the tower top.
- STEP 04
Co-Current Drying
Atomized droplets contact hot air in co-current flow, drying to a finished powder in a very short residence time.
- STEP 05
Cyclone Separation
Finished product is separated from the exhaust air stream by the cyclone separator and, where fitted, a secondary bag filter.
- STEP 06
Continuous Discharge
Dried powder is continuously discharged from the drying tower base and cyclone separator while waste gas is exhausted by the induced draft fan.
Structure Diagram
LPG spray drying system flow
System flow diagram of the LPG series high-speed centrifugal spray dryer, from raw material tank and feed pump through the heater, drying tower, atomizer, cyclone and bag filter dust collectors, to the induced draft fan and optional wet scrubber.
Key Components
- Heater
- Atomizer
- Cyclone & Bag Filter
- Induced Draft Fan
Application Industries
Industries relying on the ZPG series
Pharmaceutical & Biochemical
- Fine powder API and excipient production
- Heat-sensitive liquid formulations
- Consistent particle size for downstream tableting
Confirm documentation requirements with our engineers before specifying for regulated production.
Chemical & Dyestuff
- Solutions and suspensions converted to powder
- Ceramic and dyestuff slurry drying
- Adjustable bulk density for downstream processing
Food & Agrochemical
- Food emulsions and extracts
- Agrochemical liquid formulations
- Pumpable pastes requiring granule output
Why Choose Ruibo
Reasons processors specify Ruibo
Fast Drying for Sensitive Liquids
Near-instant moisture evaporation after atomization makes the LPG suitable for heat-sensitive solutions, emulsions, and suspensions.
Adjustable Product Properties
Particle size, bulk density, and moisture content can be tuned by adjusting atomizer speed, feed rate, and air temperature.
Efficient Dust Recovery
Cyclone and bag-filter stages recover ≥95% of product, minimizing material loss and exhaust emissions.
Certified Manufacturing
CE and ISO 9001 certification backs consistent build quality across every LPG unit shipped.
Flexible Heat Source
Configure heating from electricity alone or in combination with steam, fuel oil, or gas to match available site energy.
Scales From Lab to Production
Standard models span LPG-5 for lab-scale trials up to LPG-150, with larger custom-engineered units available up to LPG-2000.
Materials Handled
FAQ
Common questions about the ZPG series
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