Each drying device has its specific scope of application, and each material can be found to meet a number of basic requirements of the drying device, but the most suitable only one. In addition to improper selection, the user in addition to the unnecessary one-time high procurement costs, but also throughout the period of use to pay a heavy price, such as low efficiency, high energy consumption, high operating costs, poor product quality, Can not run properly and so on.
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The following is the general principle of drying equipment selection, it is difficult to say which one or which is the most important, the ideal selection must be based on their own conditions have focused, sometimes a compromise is necessary.
1. Applicability ------- Drying device must first be able to apply to specific materials, and to meet the basic requirements of the use of dry materials, including good processing of materials (feeding, transport, fluidization, dispersion, transmission Heat, discharge, etc.), and to meet the processing capacity, dehydration, product quality and other aspects of the basic requirements.
2. Drying rate is high - only the drying rate, the convection drying material is highly dispersed in the hot air, the critical moisture content is low, the drying speed is fast, and the same is the convective drying, drying method different critical moisture content is different The drying rate is also different.
3. Low energy consumption ------- different drying methods of different energy consumption indicators, the general thermal conductivity of the conductivity of drying up to 100%, convection drying can only about 70%.
4. Save investment ----- to complete the same function of the drying device, and sometimes its cost difference between the poor, should choose the lowest selection. The following are the same as the "
5. Low operating costs --- equipment depreciation, energy consumption, labor costs, maintenance costs, spare parts costs ... and other operating costs should be as low as possible.
6. Priority selection of simple structure, spare parts supply adequate, high reliability, long life of the drying device. The following are the same as the "
7. Meet the environmental requirements, working conditions, and high security.
8. Before the selection of materials can make the best drying experiment, in-depth understanding of similar materials have been used in the drying device (advantages and disadvantages), often on the appropriate selection of help.
9. Do not rely entirely on past experience, pay attention to the absorption of new technologies, listen to the views of experts.