In papermaking equipment, the airtight hood effect and use value of the drying section are relatively high, because it is the soul of the drying section. The quality of the drying process, will directly affect the quality of paper, our later sales also have a great impact. Therefore, in the process of designing the airtight hood, the following functions should be met to ensure the normal operation of the paper-making equipment.
1. A closed high temperature environment is provided in the paper machine production line to facilitate the paper drying and reduce the exhaust air volume, so as to improve the effect of heat recovery from the exhaust air of the hood. The most popular design in the world is that the dry bulb temperature is 80-85 ℃ and the dew point temperature is 58-62 ℃.
2. The airtight hood in the paper machine production line must provide convenience for monitoring, operation and maintenance of the paper machine operation, and it must be able to easily lead paper and change rolls.
3. In the paper machine production line, the high temperature and high humidity in the airtight hood are particularly easy to cause condensation. The design of the hood must completely eliminate the condensation and dripping of the air hood roof.
4. As far as possible, the gas in the hood of paper machine should not be emitted to the workshop.
5. The airtight hood in the paper machine production line should be able to adjust the longitudinal exhaust air volume of the paper machine, so as to ensure the required exhaust air volume of each drying part of the paper web.
6. Lighting and fire protection facilities should be fully considered in airtight hood of paper machine production line to meet the needs of all aspects.
7. In the paper machine production line, the airtight hood occupies a large area in the paper locomotive room. Therefore, the appearance of the air hood must be beautiful and durable.
The above is a small series for you to introduce some knowledge about the airtight hood, I hope it can help you. The reasonable design of airtight hood can improve the quality of paper sheet and bring better benefits to enterprises. The effect of airtight hood designed and produced by different manufacturers is slightly different. Therefore, we need to compare several airtight hood manufacturers to select the suitable paper-making equipment.
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