文中对喷雾干燥塔排风温度高的原因进行了分析，提出了解决方法。

Now , I want to analyse the causes of it and try to give the way to resolve it.

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介绍了一水硫酸亚铁生产中干燥工艺改进的要求，着重介绍了高温介质、物料温度、排风温度、除尘系统等对产品质量的影响。

Requirements in drying process improvement of FeSO4·H2O, effects of high temperature medium, material temperature, air exhaust temperature and dust removal system on product quality are introduced.

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特设下吹风管及环流排风功能，保证塑料干燥温度均匀，提高干燥效率。

Downward blowing and circumfluent hot - air assures even drying and high efficiency.

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