Rotary Vacuum Paddle Dryers (RVPD)
Rotary Vacuum Paddle Dryers (RVPD)
Our Rotary Vacuum Paddle Dryers are meticulously engineered to deliver high efficiency in drying operations. Designed for versatile applications, these horizontal dryers feature a cylindrical jacketed vessel and an innovative central shaft with advanced paddle/blades. This design ensures that all product media comes into optimal contact with the heated surface, resulting in effective and uniform drying.
Turnkey Solutions
S2 Engineering offers a comprehensive turnkey service for RVPDs, encompassing everything from initial design and manufacturing to complete assembly, installation, and commissioning. Our solutions are tailored to meet specific process needs and operational constraints, providing significant benefits in terms of both capital and operational cost efficiencies.
Manufacturing Excellence
Our RVPDs adhere to stringent industry regulations and are constructed to the highest safety and quality standards. The dryers feature a robust design with high-performance bearings, a direct drive mechanism using a hollow shaft gearbox, and efficient temperature control via a jacketed vessel. For facilities without an existing heat source, we provide complementary Thermal Control Units and limpet coils.
S2 Engineering’s dedication to quality and innovation has established us as a leading supplier of RVPDs. Our equipment is compliant with national and international standards, ensuring reliable and high-integrity operations across diverse industrial applications.
Technical Specification
Temperature Range:
- Operating Temperature: 0-200°C (0-390°F)
- Heating Temperature: 30°C to 300°C
Evaporation Rate:
- Rate: 4.12 kg/hr per square meter of heating surface area at a heating temperature of 100°C
Capacity:
- Range: 500 - 10,000 litres
Pressure:
- Range: Full vacuum to 1.5 bar(g)
Design Features:
- Modular Design: Constructed with cGMP-compliant stainless steel, ensuring robust and flexible configurations to suit various applications.
- Innovative Paddle/Blade Technology: High-efficiency operation with advanced agitator blades that provide comprehensive mixing and effective heat transfer.
- Double Wall Vessel Construction: Designed for safe operation, minimising the risk of contamination and ensuring reliable performance.
- Integral Dust/Powder Catcher: Captures and contains any airborne dust or powder, enhancing safety and cleanliness.
- Vacuum System: Options include vacuum pump, condenser, and receiver, adaptable based on on-site availability.
- Vacuum Tight Discharge Valve: Ensures secure and efficient material discharge under vacuum conditions.
- Internal Filter: Provides additional protection and maintains process integrity.
- Quick Opening Device: Allows for easy loading of wet cake or slurry through a cover, facilitating efficient operation and maintenance.
S2 RVPDs are engineered to optimise production efficiency and product quality while minimising operational costs. Our innovative design and high-quality construction make these dryers ideal for a wide range of industrial applications.
Dimensions
Supply Options
S2 offers a range of customisable options to enhance the functionality and efficiency of our Rotary Vacuum Paddle Dryers (RVPDs). Choose from the following supply options to meet your specific needs:
- Raised Skid Mounting: Ideal for scaled pilot plant and laboratory applications, providing optimal ergonomics and process flow for operators.
- Limpet Coil: An alternative to the traditional heating jacket, this coil is used when heating media is fluid, allowing for flexible heating options.
- Full Instrumentation Pack: For complete control room operation and integration with DCS systems, ensuring seamless monitoring and control.
- Internal Breaker Bars: Installed along the entire length of the dryer shell to prevent lump formation during drying, ensuring consistent product quality.
- Complementary Thermal Control Unit (TCU): A skid-mounted TCU is available to manage and supply thermal heating and cooling fluids for the dryer’s heating system. If plant services are unavailable, our TCUs, provided by our Group company, offer a reliable solution.
- Nitrogen Blanketing: Provides sealing at charging and discharging points to facilitate the drying of highly explosive materials, enhancing safety during processing.
- Receiver: Included for efficient collection and handling of dried material.
- Condenser: To manage and condense vapors, ensuring efficient recovery and processing.
- Vacuum System: Complements the dryer’s operation by maintaining the required vacuum levels for optimal performance.
These options ensure that S2’s RVPDs are fully equipped to handle a wide variety of applications with maximum efficiency and safety.
Benefits
Application
S2 RVPDs are versatile and effective for drying a wide range of materials, making them suitable for various industries and applications. Our Rotary Vacuum Paddle Dryers are particularly adept at handling:
- Centrifuged Solids: Efficiently drying solids separated by centrifugation.
- Pharmaceuticals: Ideal for heat-sensitive and high-purity pharmaceutical materials, including those required for sterile or clean room environments.
- Starch: Effective drying of starches used in various industrial applications.
- Pigments: Suitable for drying pigments used in chemical and manufacturing processes.
- Rayon Staple: Handles rayon staple fibers with precision.
- Synthetic Rubber: Efficiently processes synthetic rubber for further use or production.
The RVPD's high vacuum operation ensures low-temperature drying, which is crucial for maintaining the integrity and purity of heat-sensitive materials. This makes them especially valuable for industries requiring stringent cleanliness and quality standards.
Literature
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