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This post was last edited by Lanlian Jushi on 2011-11-19 at 09:29. Hello everyone. I just graduated from university and now work in the soda ash industry. Our plant produces soda ash using the ammonia-soda process, utilizing an externally cooled carbonation tower. Why is it that although the total volume of soda ash produced reaches 960 cubic meters per hour, the actual output is only 80 tons per hour? Please, experts, help me answer this
This post was last edited by chen-jun-1024 on 2011-11-13 at 11:10. That’s incorrect. Based on a sedimentation rate of 40% and a firing rate of 50%, just how high would the filtration loss rate be?
Reply to 2# Bathing in the East: Could it be that it ran away due to excessive running?
In the externally cooled carbonation tower, the total output of caustic soda reaches 960 t/h. Is there anything wrong with the instruments? The output is only 80 t/h. Also, brother, did you make a mistake? It should be changing from 96 to 80, right? I want to know how your total alkali output is calculated.
Reply to 5# steinback: The total flow rate of soda ash displayed on the computer is around 960, while the total production of pure soda ash over 12 hours is only about 1050; that’s less than 90 per hour on average
Reply to #4 by Jiangbei Piao: The alkali discharge flow meter should be fine, right?
Ignoring the issue of flow measurement, your circulation equivalents are indeed relatively large. The focus should be on examining the carbonation reaction. I wonder what the temperatures for various indicators related to carbonation are in your case; the analysis should be centered on this aspect.
The flow rate can be compared with the inlet flow rate of the soda-making tower; if they match, it indicates that the metering is accurate. Additionally, the instrumentation and control personnel can be asked to perform a verification.
The total flow rate of alkali output is 960; does this refer to the flow rate of the extracted liquid? And since your output is low, you should, as the guy upstairs suggested, calibrate the flow meter first to ensure it’s accurate. If it is confirmed that there’s nothing wrong with the meter, then it comes down to the composition of the mother liquor in your system. If the concentration is very low, then it means the circulation volume is high; otherwise, it’s possible that water has entered midway through.
The total amount of alkali produced refers to the amount of alkali generated through carbonation, right? Should the unit be cubic meters per hour?