Spray Dryer
Spray Dryer Overview
The Spray Dryer is a high-efficiency drying system designed to convert liquid feedstock into dry powder form through rapid drying using a hot air stream. It is widely used for heat-sensitive materials, producing free-flowing, uniform powders with controlled particle size and moisture content.
Ideal for pharmaceutical, food, chemical, and dairy industries, PM Industries and Process Equipment Pvt. Ltd. Spray Dryers offer precise temperature control, energy efficiency, and customizable configurations to suit various formulations and capacities.
Working Principle
Liquid feed is atomized into fine droplets by nozzles or rotary atomizers inside a heated drying chamber. The hot air rapidly evaporates moisture as droplets fall, leaving dry particles that are collected in cyclone separators or bag filters. This process ensures minimal thermal degradation and high product quality.
Key Features
- Precise control of inlet and outlet temperatures
- Multiple atomization options: pressure nozzles, two-fluid nozzles, rotary atomizers
- High drying efficiency with low energy consumption
- Modular design for easy maintenance and cleaning
- Integrated cyclone separator and bag filter for powder recovery
- GMP-compliant design with hygienic surfaces
- Automated controls with data logging and safety interlocks
- Suitable for heat-sensitive and thermally unstable materials
Applications
- Pharmaceutical APIs and excipients
- Dairy powders including milk, whey, and infant formula
- Food ingredients, flavors, and instant beverages
- Chemicals, detergents, and catalysts
- Enzymes, probiotics, and nutraceutical powders
- Ceramics and pigments
Technical Specifications
Parameter | Specification Range | Remarks |
Capacity | 5 – 5,000 kg/hr | Adjustable based on feed properties and product requirements |
Inlet Temperature | 150 – 400 °C | Controlled for product stability |
Outlet Temperature | 60 – 120 °C | Ensures optimal moisture content |
Atomization Type | Pressure nozzles / Two-fluid nozzles / Rotary atomizer | Based on feed viscosity and particle size desired |
Airflow Rate | 500 – 10,000 m³/hr | Adjustable for drying efficiency |
Chamber Material | SS 316L (Standard) | Hygienic finish for food/pharma |
Power Consumption | 10 – 100 kW | Varies with capacity and drying parameters |
Control System | PLC-based with HMI | For automated process control and monitoring |
Powder Collection System | Cyclone separator and bag filter | High-efficiency powder recovery |
Variants Available
- Laboratory Spray Dryer – For R&D and pilot scale testing
- Multi-Stage Spray Dryer – For high capacity and complex formulations
- Closed Loop Spray Dryer – For solvents and volatile materials
- Custom Coating Spray Dryer – For powder coating applications
Downloads
Want to convert your liquid feed into high-quality powder efficiently?
PM Industries and Process Equipment Pvt. Ltd. offers customizable Spray Dryers engineered to meet your production and quality standards.