Each drying unit has its own specific application range, and each material can find several drying devices that can meet the basic requirements, but there is only one suitable for Zui. If the selection is not appropriate, in addition to the unnecessary one-time high procurement cost, the user has to pay a heavy price throughout the lifetime, such as low efficiency, high energy consumption, high operating cost, poor product quality, and even device fundamentals. Can't run normally and so on.
The following are the general principles for the selection of drying equipment. It is difficult to say which one or which items are important. The ideal selection must be based on its own conditions, and sometimes compromises are necessary.
1. Applicability ------- The drying device must first be applicable to specific materials and meet the basic requirements for drying of materials, including the ability to process materials well (feed, transport, fluidize, disperse, pass Heat, discharge, etc.), and can meet the basic requirements of processing volume, dehydration amount, product quality and so on.
2. High drying rate---only in terms of drying rate, the material is highly dispersed in hot air during convection drying, the critical moisture content is low, the drying speed is fast, and the same convection drying, the drying method has different critical moisture content, so The drying rate is also different.
3. Low energy consumption ------- Different drying methods have different energy consumption indexes. Generally, the thermal efficiency of conductive drying can reach 100% theoretically, and convection drying can only be about 70%.
4. Saving investment-----Drying equipment that performs the same function, sometimes its cost difference is very different, should choose the lower one.
5. Low operating costs - equipment depreciation, energy consumption, labor costs, maintenance costs, spare parts costs, etc. should be as low as possible.
6. Prefer the drying device with simple structure, sufficient supply of spare parts, high reliability and long service life.
7. Meet environmental protection requirements, good working conditions and high safety.
8. Before the selection, Zui can make the drying experiment of the material, and deeply understand the drying device (extension and disadvantage) that has been used in similar materials, which is often helpful for proper selection.
9. Not relying entirely on past experience, focusing on absorbing new technologies and listening to expert opinions.
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