Discussion on the influence of vacuum level in the second stage on the production process of monoammonium phosphate
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The vacuum level in the second stage of this process is primarily used to lower the boiling point of the slurry; what other functions and effects does it have? All the sea friends, please share your thoughts. :)
I don’t know the specifics. But the purpose of using a vacuum is nothing other than to lower the boiling point ； Increase the medium’s speed and reduce the residence time ； Easy to operate, and so on
This isn’t something you should ask about, right?:! Go and look at the principles of chemical engineering again.
The vacuum level in the second stage of this process is primarily used to lower the boiling point of the slurry; what other functions and effects does it have? Primary function: Lower the boiling point of the circulating slurry, accelerate the evaporation rate of water, and at the same time save energy! Reduce costs!
Impact of two-stage vacuum level on production: 1) Increasing the vacuum level of the final stage can lower its boiling point and increase the heat transfer temperature difference, with an effect similar to that of increasing the pressure of the heating steam. 2) An excessively high vacuum level results in a too low boiling point of the final solution, which in turn increases the viscosity of the slurry and reduces the heat transfer coefficient. 3) Excessively high vacuum levels result in a too low boiling point, thereby exacerbating the foaming phenomenon in the slurry. 4) High vacuum levels increase the amount of process water required.
Creating a vacuum is intended to lower the boiling point, improve heat transfer efficiency, and reduce steam consumption; however, it is necessary to keep the vacuum level within an appropriate range, otherwise the slurry tends to become viscous and its flow properties deteriorate, resulting in the opposite effect.