Each drying box has its own specific scope of application, and each material can be found to meet the basic requirements of the drying device, but the most suitable only one. If the type is not properly selected, users should not only bear the unnecessary one-time high procurement costs, but also pay a heavy price throughout the use period, such as low efficiency, high energy consumption, high operating costs, poor product quality, and even the device can not operate normally and so on.

Following is the general principle of oven selection, it is difficult to say which one or which is the most important, the ideal selection of electric blast drying oven must be based on their own conditions, sometimes compromise is necessary.

1. Applicability - --- Drying equipment must be able to apply to specific materials, and meet the basic requirements of material drying, including good handling of materials (feed, transport, fluidization, dispersion, heat transfer, discharge, etc.), and to meet the basic requirements of processing capacity, dehydration, product quality.

2. High drying rate - only in terms of drying rate, convective drying materials are highly dispersed in hot air, low critical moisture content, drying speed, and the same convective drying, drying method is different from the critical moisture content, so the drying rate is different.

3. Low energy consumption - - - Different drying methods have different energy consumption index, the general thermal efficiency of conductive drying can reach 100% in theory, convective drying can only be about 70%.

4. Save investment - --- to complete the same function of the drying device, sometimes its cost difference, should choose the lower one.

5. Low operating costs - - depreciation of equipment, energy consumption, labor costs, maintenance costs, spare parts costs.. Electric blast drying box and other operating costs should be as low as possible.

6. select the drying device with simple structure, adequate supply of spare parts, high reliability and long service life.

7. meet the environmental requirements, good working conditions and high safety.

8. It is better to do the drying experiment of the material before selecting the type. It is helpful to know the drying equipment (advantages and disadvantages) of the similar material.

9. do not rely entirely on past experience, focus on new technologies and listen to experts' opinions.