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Drum dryer is an efficient, energy-saving, and environmentally friendly grain drying equipment. By rotating the drum and heating the heating element, the moisture in the grain is evaporated to achieve the purpose of drying. This device has the advantages of large processing capacity, flexible operation, and good drying effect, and is widely used for drying and processing grain crops such as rice, wheat, and corn. It is a specialized equipment for drying grain, which has a wide range of applications in agricultural production and grain processing.

The working principle of a drum dryer mainly includes three processes: heating, heat transfer, and mass transfer:
1. Heating process: The air is heated to a certain temperature by a heater (such as fuel, natural gas, steam, etc.) to form hot air.
2. Heat transfer process: Hot air is sent into the drum and exchanges heat with moist grains. The rotation of the drum continuously flips the grains inside, increasing the contact area between the grains and hot air and improving heat transfer efficiency.
3. Mass transfer process: Under the action of hot air, the moisture in the grain gradually evaporates and diffuses into the air, forming steam with a certain humidity, and finally discharged through the exhaust system.

The structure of a drum dryer is relatively complex but the design is reasonable, mainly including the following parts:
1. Drum: The drum is the core component of the dryer, made of stainless steel or other high-temperature and corrosion-resistant materials. The inside of the drum is cylindrical, and the surface may be designed with small holes or special structures to promote the circulation of hot air and uniform drying of grains.
2. Hot air system: composed of a hot air stove, fan, hot air duct, etc., responsible for generating high-temperature hot air and evenly sending it into the drum.
3. Feeding and discharging device: The feeding end is usually a funnel-shaped structure used to feed grains into the drum; The discharge end is used to discharge the dried grains.
4. Transmission device: including motor, reducer and other components, used to drive the rotation of the drum.
5. Control system: composed of electrical control cabinet, touch screen, sensors, etc., used to achieve precise control of the drying process, including setting and adjusting parameters such as temperature, humidity, time, etc.

Application areas:
Drum dryer is widely used in agricultural production and grain processing fields, such as drying and processing of grain crops such as rice, wheat, corn, etc. In addition, it can also be used for other materials that require drying, such as chemical raw materials, pharmaceutical raw materials, etc.

We are a professional enterprise engaged in the research and development, production, and sales of agricultural machinery and equipment. Our production equipment includes: drum dryer, vertical dryer, shell stripping machine, spiral oil press, hydraulic oil press, refining machine, etc. We are committed to providing customers with efficient, stable, and reliable pre-sales and after-sales services.