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High Speed Centrifugal Spray Dryer Manufacturers

Spray dryers are cutting-edge devices designed for industrial-scale drying processes. By leveraging mechanical forces, these systems transform materials into ultra-fine mist-like particles, significantly amplifying the water evaporation surface area and expediting the drying cycle. Upon exposure to hot air, the majority of moisture swiftly dissipates, leaving behind dry solids that convert into powders.
This method excels at directly drying solutions and emulsions, bypassing the need for additional steps like evaporation or crushing. The versatility of spray dryers is showcased in two primary types: centrifugal spray drying and pressure spray drying, each offering unique advantages depending on the materials and process requirements.
One of the standout features of spray dryers is their rapid drying capability, making them ideal for handling heat-sensitive substances such as egg powder, milk, and animal blood. By streamlining the drying process and eliminating intermediary steps, these systems enhance efficiency, reduce energy consumption, and ensure consistent product quality, making them indispensable tools in modern industrial operations.

Who Are We?

Changzhou Yimin Drying Equipment Co., Ltd. is China High Speed Centrifugal Spray Dryer Manufacturers and High Speed Centrifugal Spray Dryer factory, located in the birthplace of China's drying equipment industry - Jiaoxi Industrial Park, Zhenglu Town, Changzhou City. It is adjacent to the Beijing-Shanghai Expressway, Shanghai-Nanjing Railway, and 5 kilometers from the Hengshan Crossing of the Shanghai-Nanjing Expressway. It is a key backbone enterprise in China's drying industry and pharmaceutical machinery. The company currently covers an area of ​​33,000 square meters and a building area of ​​18,000 square meters. The company has modern large-scale production workshops and equipment, fixed assets of more than 80 million yuan, and more than 120 employees. The founder of the company, Mr. Fan Yiming, has been committed to the research, production and operation of drying equipment for more than 20 years. At the same time, he has also brought together a group of high-quality talents integrating scientific research, design, production and service, and has long-term horizontal cooperation with relevant colleges and universities to continuously update and develop products.

At present, the company has more than 180 sets of processing equipment and strong technical force. It produces more than 2,000 sets of various drying, mixing, granulating, crushing, dust removal, powder screening and other equipment annually. The products have developed into eight series with more than 300 specifications and varieties, which are widely used in pharmaceutical, chemical, food, feed, mining, agricultural and sideline products, electronics, light industry and other industries. The products are distributed throughout the country and exported to the United States, Japan, Russia, Hong Kong, Taiwan and other places.

The factory also has a large test workshop with a full range of prototypes. Customers are welcome to bring materials for testing and ordering.

Changzhou Yimin Drying Equipment Co., Ltd.

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Industry Knowledge Extension

Effect of different atomization methods of spray dryer on product particle size and distribution

The atomization method of spray dryer is one of the key factors affecting the particle size and distribution of the final product. Different atomization methods will produce droplets of different sizes and distributions, which in turn affect the characteristics of the powder particles after drying.

Common atomization methods and their effects
Pressure atomization:

Principle: The liquid is ejected through the nozzle by high pressure, and droplets are formed under the collision with the air.

Features: The droplet particle size distribution is narrow, but it is sensitive to the viscosity of the liquid. High-viscosity liquids are not easy to atomize.
Impact: Suitable for liquids with low viscosity. The obtained powder particle size is relatively uniform, but the material of the equipment and the design of the nozzle are required to be high.

Rotary atomization:

Principle: The liquid is thrown out through a high-speed rotating disc or cone to form a thin film, which is broken into droplets under the action of centrifugal force.
Features: Good atomization effect, strong adaptability to the viscosity of the liquid, and can handle high-viscosity liquids.
Impact: The droplet particle size distribution is wide, but it can be controlled by adjusting the rotation speed and feed amount.

Airflow atomization:

Principle: High-speed airflow collides with liquid jet to break the liquid into droplets.
Features: Good atomization effect, strong adaptability to liquid viscosity, and can handle high-viscosity liquids.
Impact: The droplet size distribution is wide, and larger droplets are easy to produce.

Ultrasonic atomization:

Principle: High-frequency vibration is used to generate cavitation bubbles, and the liquid is broken into droplets when the cavitation bubbles burst.
Features: The droplet size is extremely fine and evenly distributed.
Impact: Suitable for small-scale production, high cost, and high requirements for liquid purity.
Summary of the impact of atomization methods on product particle size and distribution
Atomization particle size: Different atomization methods produce different droplet sizes, which in turn affects the particle size of the final powder. Generally speaking, pressure atomization produces smaller droplet sizes, while airflow atomization produces larger droplet sizes.
Particle size distribution: The atomization method will also affect the particle size distribution of the powder. The powder particle size distribution produced by pressure atomization is narrower, while the powder particle size distribution produced by airflow atomization is wider.
Other influencing factors: In addition to the atomization method, factors such as liquid viscosity, surface tension, solid content, temperature and flow rate of the drying medium will also affect the particle size and distribution of the final product.

Choose the right atomization method
Choosing the right atomization method requires comprehensive consideration of the following factors:

Material properties: Liquid viscosity, surface tension, solid content, etc.
Product requirements: Required particle size, particle size distribution, fluidity, etc.
Production scale: Ultrasonic atomization can be selected for small-scale production, and pressure atomization or rotary atomization can be selected for large-scale production.
Equipment cost: The equipment cost of different atomization methods is different.