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YANGZHOU NUOYA MACHINERY CO.,LTD

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Drying Machine

HFG Series Drum Scraper Dryer

Efficient, contamination-free drying for high-value materials

HFG Series Drum Scraper Dryer

HFG Rotary Scraper Roller Drying Machine is a specialized rotating continuous drying equipment designed for highly efficient and quick drying solutions, particularly suited for liquid materials.

Product Description

Conical Screw Vacuum Dryer

Applications

HFG Rotary Scraper Roller Drying Machine is ideal for industries requiring efficient and rapid drying of liquid materials, including:

Pharmaceuticals: Suitable for drying heat-sensitive materials while preserving their quality.

Food Processing: Ideal for drying liquid ingredients such as juices, syrups, and sauces.

Chemical Industry: Perfect for drying chemicals that are prone to thermal degradation or require precise moisture control.

Dairy Industry: Useful for concentrating milk, whey, and other dairy products.



Conical Screw Vacuum Dryer

Features

High Thermal Efficiency: Achieves 80%-90% thermal efficiency by ensuring nearly all heat energy is used for evaporating moisture from materials on the roller wall.

Flexible Operation Parameters: Adjustable parameters like material density, film thickness, heating medium temperature, and roller speed allow for versatile operation.

Rapid Drying Cycle: Typical drying period of only 10 to 15 seconds, making it suitable for heat-sensitive materials.

Quick Evaporation Rate: Thin material film (0.3-1.5 mm) combined with aligned heat and mass transfer directions enables an evaporation capacity of up to 70 kg.H2O/m².h.

Versatile Feeding Methods: Capable of processing liquid materials using immersion, spray, or grinding assistance based on material properties.

Integrated Components: Includes a scraper for removing dried products, a spiral conveyor for collection and packaging, and adjustable film control for uniform material distribution.

Heating Options: Supports steam, hot water, or hot oil as heating media, offering flexibility in heat source selection.

HFG Rotary Scraper Roller Drying Machine is a specialized rotating continuous drying equipment designed for highly efficient and quick drying solutions, particularly suited for liquid materials. By utilizing direct heat conduction, it achieves high thermal efficiency (80%-90%) and ensures that nearly all heat energy is used for evaporating moisture from materials on the roller wall.

This dryer offers flexible operation parameters, allowing adjustments in material density, film thickness, heating medium temperature, and roller speed to accommodate various materials and production requirements. With a typical drying period of only 10 to 15 seconds, it is especially effective for heat-sensitive materials and can operate under reduced pressure when integrated with vacuum devices.

The machine's design promotes fast evaporation, with a thin material film (0.3-1.5 mm) formed on the cylinder wall, enabling an evaporation capacity of up to 70 kg.H2O/m².h. It supports multiple feeding methods—immersion, spray, or grinding assistance—depending on material properties and process needs. Integrated components such as a scraper, spiral conveyor, and adjustable film control ensure uniform material distribution and efficient product removal.

Additionally, the HFG Rotary Scraper Roller Drying Machine supports various heating options, including steam, hot water, or hot oil, providing flexibility in heat source selection. Its ability to operate under reduced pressure conditions enhances safety and product integrity, making it an excellent choice for industries where precise moisture control and thermal sensitivity are critical. This dryer delivers superior thermal performance, adaptable processing, and significant energy savings, ensuring high throughput and productivity.








Specification

TYPEHFG-600HFG-700HFG-800HFG-1000HFG-1200HFG-1400HFG-1600HFG-1800HFG-1800A
Roller sizeΦ600*800700*1000800*12001000*14001200*15001400*16001600*18001800*20001800*2500
Effective Heating Area(m²)
1.121.652.263.34.245.286.798.4810.6
Drying Capacity  (kg.H2O/m2.h)
40-7060-9090-130130-190160-250210-310270-400330-500420-630
Steam Consumptionkg/h100-175150-225225-325325-475400-625525-775675-1000825-12501050-1575
Motor Powerkw2.2345.57.511111518.5
Overall Dimensionsmm1700*800*15002100*1000*18002500*1100*19802700*1300*22502800*1500*24503150*1700*28003350*1900*31503600*2050*35004100*2050*3500
Weightkg85012101700210026503220435051006150



FAQ - Have any questions?

What is the primary function of the HFG Series Drum Scraper Dryer?

HFG Series Drum Scraper Dryer is designed for efficient drying of various materials by scraping them off a heated drum surface.

What industries can benefit from using the HFG Series Drum Scraper Dryer?

This dryer is widely used in the chemical, food, pharmaceutical, and textile industries, among others, for drying slurries, pastes, and other viscous materials.

How does the scraping mechanism work in the HFG Series Dryer?

The scraper blades attached to the internal drum surface move along with the drum's rotation, effectively scraping off the material and ensuring uniform drying.

What are the advantages of the indirect heating system in the HFG Series Dryer?

The indirect heating system prevents direct contact between the heating element and the material, reducing the risk of contamination and allowing for more precise temperature control.

Can the HFG Series Dryer handle viscous and sticky materials?

Yes, the scraper mechanism is specifically designed to handle viscous and sticky materials, ensuring efficient drying without material buildup.

What safety features does the HFG Series Dryer include?

Safety features include overheat protection, emergency stop buttons, and explosion-proof designs (for specific models) to ensure operator safety and prevent accidents.

Is the HFG Series Dryer easy to clean and maintain?

The dryer is designed with easy-to-access components and a robust construction to facilitate cleaning and routine maintenance.

What is the typical drying capacity of the HFG Series Dryer?

The drying capacity varies depending on the model and the specific material being dried. Consult our product catalog or contact us for detailed capacity information.

Can the HFG Series Dryer be customized to meet specific process requirements?

Yes, we offer customization options to tailor the dryer to your specific process needs, including adjustable scraper blades, variable drum speeds, and different heating configurations.

What kind of support and after-sales service do you provide for the HFG Series Dryer?

We offer comprehensive support, including installation supervision, operator training, spare parts supply, and ongoing technical assistance to ensure the optimal performance of your HFG Series Dryer.

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