Instrument for measuring the concentration of black liquor in pulp alkali recovery?
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I would like to ask everyone: The black liquor generated in pulp production (wood pulp) needs to be sent for alkaline recovery, evaporation, and concentration before being burned in an alkaline furnace. Our company uses online refractometers from K-Patents, and the measurement performance is satisfactory; however, the spare parts and the cost of purchasing a new set are quite high. May I ask what instruments are used by you to measure the concentration of black liquor? What brand is it? How is it being used? Thank you! !
Density can also be used, preferably in combination with data on total alkalinity.
Thank you! ! Are there any application instances available, and what is the performance like?
I don’t know if there are any examples. But I am familiar with the processes of black liquor, white liquor, and alkali recovery, and from their technical characteristics it is entirely possible to infer that measuring density and alkalinity can serve as a reference for these processes.