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Demystifying the five characteristics of the dye dryer
It is well known that the production of dyes requires various types of drying equipment. The expansion of dye production necessarily requires a large amount of drying equipment. Therefore, the application prospect of dye dryers in the dye industry is still very optimistic. Many dryer in the successful development, both early in the dye industry applications, that is, the dye industry needs dyes dryer types and specifications are more and more. Because of this, this field has attracted many drying equipment factories.
Dye drying is a thermal process, which belongs to the operation of chemical units. This is basically the same as other materials, and there is no big difference, but the drying of dyes has its particularity:
1 Dyes are fine chemical products. The materials are heat sensitive and sensitive to the operating temperature. Some materials can not exceed the temperature range of ±5 °C, otherwise quality problems will occur, so the operating conditions are strict.
2 As mentioned earlier, there are hundreds of different types of dyes that are often produced, and dye intermediates are more difficult to count. The production scale is small, and the annual production volume is over 200~300t, so the production cost is relatively higher.
3 dye dryer replacement varieties are frequently annoying, and now many dye factories have to replace the varieties several times within one year. As we all know, China's dyes have strict quality standards, and it is difficult to avoid cross-contamination of frequently replaced varieties. Every time the replacement of the variety has to be washed repeatedly, and sometimes even to replace the pipeline or some equipment, so the design of the drying equipment, from the process to the structure must take into account this particularity.
4 Dyes are seriously polluted by the environment, solid dyes are easy to dust, and it is easy to cause pollution to the production workshop or the factory environment. If the dye factory is in the residential area and the scenic area, pay attention to the reliability of the production equipment and exhaust gas.
5 Dye drying is a unit operation process that integrates science, technology and art. The operation experience plays an important role in certain situations, because many parameters are related to each other during operation, and may play an active role within a certain range. There will be bad results in the range, so the operating experience can not be underestimated.