Urgent: Sequence of starting the circulation fan and the D201 mixer in the HYPOL polypropylene process
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Regarding the sequence of starting the circulation fan and the mixer in the HYPOL polypropylene process, I have reviewed quite a lot of information, and it generally states that the fan should be started first, followed by the mixer. I would like to ask all the sailors here: are there any requirements regarding the order in which they start, and what are the advantages and disadvantages of that? What if we start the mixer first!
In principle, that’s the case; it can reduce the starting current due to stirring, but nothing else really
Whoever gets there first gets priority. Generally, pressure is applied first, and then the liquid level is adjusted; therefore, the fan is started at a liquid level of around 10 kilograms, and mixing can begin once the liquid level reaches over 20%. (The liquid level is too low, resulting in large axial oscillations of the stirrer, which is not conducive to long-term operation.)
Reply to 1# chxp110: Fan first, then mixing