Tongli 150,000 tons per year npk compound fertilizer production line rotary dryer, rotary drying machine working principle and structure introduction

zhejiang tongli heavy machinery fertilizer production line

A Tongli rotary dryer, also known as a rotary drum dryer, is a type of industrial dryer used to reduce or minimize the moisture content of materials by placing them in direct contact with a heated gas. These dryers are commonly used in industries such as mining, agriculture, construction and chemical processing to dry materials such as ores, fertilizers, biomass and chemicals.

Zhejiang Tongli Heavy Machinery Manufacturing Co.

What is the Working principle of npk fertilizer production line dryer?

zhejiang tongli heavy machinery fertilizer production line

The working principle of a Tongli rotary dryer involves the following steps:

Material Feeding: Wet material is fed into the rotary drum dryer through a feeding mechanism such as a conveyor belt or chute.

Heat Transfer: The rotating drum is heated internally by direct burning with a burner or by indirect means such as hot gases or steam flowing through the drum. The heat generated inside the drum creates a thermal gradient, causing the moisture in the material to evaporate.

Rolling and Drying: As the drum rotates, wet material is lifted by internal vanes or elevators within the drum. This rotating action exposes the material to the hot surface of the drum, facilitating efficient drying. Meanwhile, the evaporated moisture is carried away by the heated gas flow.

Material Discharge: Once the material reaches the desired moisture content, it is discharged from the rotary dryer. The dried material can then be collected for further processing or storage.

What is the structure of the rotary dryer in fertilizer plant?

The basic structure of a Tongli rotary dryer typically consists of the following components:

Rotating Drum: It is the main cylindrical container where the drying process takes place. It is typically made of steel and mounted on a swivel mechanism, allowing it to rotate around its axis.

Internal fins or elevators: These are protrusions inside the drum that help lift and tumble material as the drum rotates. They improve the mixing of the material and guarantee uniform drying.

Heating System: Provides the heat necessary for drying the material. It can be in the form of a direct burner mounted inside the drum or indirect heating through hot gases or steam circulating around the drum.

Feeding mechanism: It is used to introduce the wet material into the rotary dryer. It can be a conveyor belt, a screw feeder or any other suitable mechanism.

Discharge Mechanism: It is used to remove the dried material from the rotary dryer once the drying process is completed. It can be a discharge chute or a conveyor belt.

Support Structure: The rotary drum dryer is typically mounted on a sturdy support structure to ensure stability and proper operation.

conclusion

Overall, Tongli rotary dryers are efficient and versatile machines, widely used in various industries to dry a wide variety of materials.

NPK Fertilizer Equipment Manufacturer - Tongli Heavy Machinery