1. Optimize equipment design
Increase the heat transfer area: adopt a hollow paddle design, pass a heat medium (such as steam or heat transfer oil) inside, and achieve conduction heat transfer through full contact between the paddle and the material. Compared with the traditional convection drying method, the heat transfer efficiency can be increased by 30%-50%, and the thermal efficiency can reach 80%-90%.
Optimize the paddle form: The wedge-shaped paddle design can increase the contact frequency between the material and the heating surface, and improve the heat transfer efficiency by 10%-20%. At the same time, the self-cleaning function of the paddle can keep the heat transfer surface clean and avoid the adhesion of the material affecting the heat transfer.
Modular structure: Supports the combination configuration of different heat exchange areas, which is convenient for adjusting the equipment scale according to production needs.
2. Control the operating process parameters
Temperature and flow: Reasonably set the temperature and flow of the heating medium. For every 20°C increase in temperature, the drying rate can be increased by about 15%-25%, but it is necessary to avoid overheating and deterioration of the material.
Material filling rate: Control the material filling rate between 30%-70% to avoid excessive or low filling rate affecting heat transfer efficiency.
Vacuum degree: The vacuum drying technology can achieve efficient drying at a lower temperature and reduce energy consumption.
Speed adjustment: Select the appropriate speed. Low speed is suitable for heat-sensitive materials and high speed is suitable for high-viscosity materials.
3. Implement energy-saving technology
Waste heat recovery: Install a waste heat recovery device to use the waste heat of the exhaust gas or condensed water to reduce heat energy waste.
Preheating technology: Use hot air to preheat materials and air, reduce the initial temperature of the materials when they enter the dryer, and improve thermal efficiency.
4. Maintenance and care
Regular cleaning: Clean the blade surface and heat exchange channel after each batch of production to avoid material fouling affecting heat transfer.
Check the seals: Regularly check the status of the seals and protective devices to ensure that they are intact and prevent heat leakage.
Lubrication management: Use high-temperature long-lasting grease to reduce bearing failures.
5. Intelligent control
Automated control system: equipped with PLC automatic temperature control system, real-time monitoring and adjustment of temperature, humidity and other parameters to ensure the stability of the drying process.
Real-time monitoring: install a multi-point temperature monitoring system to adjust operating parameters in real time and optimize the drying effect.
