What are the basic principles for selecting drying equipment?

　　Each drying equipment has a specific scope of application, each material can find several kinds of drying equipment to meet the basic requirements, but only one is the most suitable. If the model is not selected properly, the user not only has to bear the unnecessary one-time high procurement cost, but also has to pay the heavy price of the whole service life, such as low efficiency, high energy consumption, high operating cost, poor product quality, and even the equipment can not operate normally.

　　The following is the principle of drying equipment selection, it is difficult to say which one or which one is the most important, the ideal selection must be based on their own conditions, sometimes compromise is necessary.

　　1. Applicability - the drying equipment must be suitable for specific materials and meet the basic requirements for drying materials, including good treatment of materials (feeding, conveying, fluidization, dispersion, heat transfer, discharging, etc.), And meet the basic requirements of processing capacity, dehydration capacity and product quality.

　　2. High drying rate - in terms of drying rate, materials are highly dispersed in hot air during convection drying, with low critical moisture content and fast drying speed, which is also convection drying. Different drying methods have different critical moisture content and different drying rate.

　　3. Low energy consumption - different drying methods have different energy consumption indexes.

　　4. Saving investment: for drying equipment with the same function, sometimes the cost difference is large, so the lower one should be selected.

　　5. Low operation cost: the operation cost such as equipment depreciation, energy consumption, labor cost, maintenance cost and parts cost should be as cheap as possible.

　　6. The drying equipment with simple structure, sufficient supply of spare parts, high reliability and long service life is preferred.

　　7. Meet the requirements of environmental protection, good working conditions and high safety.

　　8. It's better to make drying experiments of materials before selection, and deeply understand the drying equipment (advantages and disadvantages) used for similar materials, which is often helpful for proper selection.

　　9. Don't completely rely on past experience, pay attention to absorbing new technology and listen to experts' opinions.