How does the plastic dryer work?

Plastic dryer is a device widely used in the plastic processing industry to remove moisture from plastic raw materials and ensure the quality and stability of plastic processing. The working principle of the plastic dryer mainly includes heating, circulating fans and control systems.

First, the plastic dryer provides a heat source by heating, heating and evaporating the water in the plastic raw material. The heating system is usually electric heating, steam heating or gas heating. The choice of heat source depends on actual demand and cost considerations. The heating system is responsible for providing enough heat energy to bring the water in the plastic raw material to the evaporation temperature.

Secondly, the plastic dryer blows hot air evenly onto the plastic raw material through a circulating fan to promote the rapid evaporation of water. The circulating fan is usually located on the top of the dryer, and the impeller is rotated by the motor to generate air flow. This airflow is evenly distributed inside the dryer and blows towards the plastic raw material. At the same time, the plastic dryer is also equipped with air duct and outlet, which can adjust the wind speed and direction to adapt to different drying needs.

At the back, the plastic dryer is also equipped with a control system to monitor and regulate the entire drying process. The control system usually includes temperature controller, humidity controller, timer, etc., which can monitor and adjust the temperature, humidity and running time of the dryer in real time. Users can set the appropriate temperature and humidity values according to different plastic raw materials and drying requirements to ensure that plastic raw materials are processed in a good dry state.

The working principle of the plastic dryer can be simply summarized as follows: the heating system provides heat energy, the circulating fan generates hot air and blows to the plastic raw materials, and the control system monitors and regulates the drying process in real time.

The working process of plastic dryer mainly includes the following steps:

Step 1, plastic raw material feed. The plastic raw materials that need to be dried are put into the hopper of the dryer, usually the bottom of the hopper of the dryer is provided with a drum or spiral conveying device for sending the plastic raw materials into the dryer.

The second step is to set drying parameters. According to different plastic raw materials and drying requirements, set the appropriate temperature and humidity values. The parameters are set and adjusted by the control system.

The third step, the heating system work. The heating system is activated to provide heat, heat and evaporate the water in the plastic raw material. Through the heat source, the heating system makes the temperature of the heater rise to reach the set drying temperature.

The fourth step, circulation fan work. The circulating fan is activated to generate hot air and blow it towards the plastic raw material. Under the action of the circulating fan, the hot air is evenly distributed inside the dryer and blows to the plastic raw materials to promote the evaporation of water.

Step five, drying is complete. According to the set drying time, the control system will automatically stop the heating and circulating fan work. At this time, most of the water in the plastic raw materials has evaporated to achieve the required degree of dryness.

Step 6: Remove the dry plastic. Open the discharge port of the dryer and take out the dried plastic raw materials.

The core of the working principle of the plastic dryer is to evaporate the water in the plastic raw materials through the coordinated work of heating, circulating fans and control systems. Through proper setting and adjustment, the rapid and uniform drying of plastic raw materials can be achieved, and the efficiency and quality of plastic processing can be improved. At the same time, the plastic dryer also has the characteristics of high automation, good stability, simple operation, etc., and is widely used in the plastic processing industry.