Double-cone rotary vacuum dryer is an efficient, reliable and energy-saving drying equipment, which is widely used in chemical industry, medicine, food and other industries. The following is a detailed introduction to the double-cone rotary vacuum dryer:

I. Structural characteristics

The double-cone rotary vacuum dryer mainly consists of the following parts:

Main engine: Double-cone structure is adopted, which consists of two mutually independent cones, and each cone has fine heat preservation structure and heat exchange structure. The inner barrel is usually made of A3 or 235A board, and the inside is made of enamel to ensure the corrosion resistance and durability of the equipment.

Heating system: including heaters, fans, hot air pipes, etc., used to provide heating media such as hot air or steam to heat and dry materials.

Vacuum system: composed of vacuum pump and vacuum pipeline, it is used to form negative pressure environment during drying, which is beneficial to evaporation and discharge of water vapor.

Automatic control system: responsible for the operation and monitoring of equipment, realizing intelligent operation and improving production efficiency.

Second, the working principle

The working principle of double-cone rotary vacuum dryer is based on convection of hot air and evaporation of water vapor in vacuum environment. Specifically:

The material is placed in the double cone, which turns continuously with the rotation of the double cone, and fully contacts with the hot air and exchanges heat.

In the vacuum state, the boiling point of the material is reduced, and the evaporation speed of water vapor is accelerated. The water vapor is pumped out by the vacuum pump, thus realizing the rapid drying of the material.

Third, product advantages

High efficiency and energy saving: the double cone structure can realize fast and uniform drying of materials, with high heat energy utilization rate and energy saving.

Simple operation: the automatic control system can realize intelligent operation, reduce labor intensity and improve production efficiency.

Wide application range: it can be used to dry all kinds of powdery, granular and slurry materials, especially for drying heat-sensitive materials.

Meet GMP requirements: disinfection can be carried out before drying, and no impurities are mixed in the drying process to ensure product quality.

IV. Usage and Maintenance

When using the double-cone rotary vacuum dryer, the following points should be noted:

Preparation before startup: check whether all parts of the equipment are in good condition, whether the connection is tight and whether the lubrication is sufficient to ensure that the equipment is in good condition.

Monitoring during operation: observe the pressure gauge and vacuum gauge to ensure that the vacuum degree and pressure are within the normal range; Monitor the temperature to avoid local overheating or uneven drying; Observe the material state and adjust the drying parameters in time.

Treatment after shutdown: After completing the drying cycle, turn off the heating system and vacuum system, and clean and maintain the equipment after cooling.

In addition, it is necessary to maintain the equipment regularly, including cleaning the inside of the equipment, checking the tightness, replacing worn parts, etc., to ensure the long-term stable operation of the equipment.

V. Price and Market

The price of double-cone rotary vacuum dryer varies with brand, model and configuration. In the market, you can find products in various price ranges, ranging from tens of thousands of yuan to hundreds of thousands of yuan. When purchasing, it is recommended to choose the appropriate brand and model according to the actual demand, and consult professionals to obtain accurate quotations and recommendations.

To sum up, the double-cone rotary vacuum dryer has been widely used in chemical industry, medicine, food and other industries because of its advantages of high efficiency, energy saving, simple operation and wide application range. In the process of use and maintenance, it is necessary to strictly follow the operating procedures to ensure the long-term stable operation of the equipment and the improvement of product quality.