The effective operating time of the three-effect counter-current caustic soda evaporation process using the diaphragm method is too short
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This post was last edited by sunjl1981 on 2013-1-6 at 22:40. The effective operating time for caustic soda evaporation using the diaphragm process in a three-effect counter-current setup is too short; washing is required after 40 hours of normal operation. How can experts solve this problem? # ， ， &
1. The salt extraction efficiency is poor； 2. The cleaning efficiency is poor, with salt accumulation inside the evaporator ； 3. The normal cleaning cycle should be more than three days ； 4. During the washing process, pay attention to the temperature in various areas; extend the time appropriately and increase the temperature as needed.
The key issue is the poor salt extraction efficiency; it’s necessary to consider whether a centrifuge would be suitable
The efficiency of cleaning evaporators is indeed a matter of expertise. During the washing process, maintain a certain steam pressure to ensure that the washing water boils thoroughly in the evaporator, thereby flushing out the salt accumulated inside it. Your company needs to see results in such a short time, and there are likely many factors involved that need to be identified and addressed one by one. Start by checking the salt separation system, as the quality of salt separation often has a significant impact on the washing cycle efficiency. This post was last edited by yzhms on 2008-4-20 09:08]
1. Is the separator design reasonable? 2. Whether the salt extraction pump is appropriately selected. 3. If there are no issues with the above two aspects, the amount at the discharge port can also be adjusted to control the salt extraction volume. 4. When starting the cleaning process, be careful not to set the steam pressure too high; it should be increased gradually, and hot water should be used for cleaning.