Issues with three-effect concentration discharge
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Dear experts: The three-effect concentration equipment in my company operates normally for concentration, but it is difficult to discharge the product once the desired concentration is reached; often, no discharge is possible. I would appreciate some guidance from you all. Thank you! This post was last edited by brainandrain on 2009-2-19 13:51]
The three-effect concentration equipment operates normally for concentration, but it is difficult to discharge the product once the desired concentration is reached; often, no discharge occurs. Possible reasons: first, air leakage from the mechanical seal of the discharge pump results in insufficient centrifugal force to overcome the vacuum in the system. Secondly, a small diameter of the discharge pipe, combined with a long discharge pipeline, can also lead to similar issues.
Is it because the viscosity is too high that the material can’t be discharged? This makes it difficult to discharge the material; using forced circulation should solve the problem. If I’m wrong, please correct me
A steam pipe is installed at the discharge port; when discharge is not possible, steam is introduced into the evaporator to help push the material out. This is what we do now, and it works very well. This post was last edited by brainandrain on 2009-2-21 18:42]
For the discharge pipeline, use vertical pipes with large diameters as much as possible; employ ring valves with a relatively vertical opening angle to allow the concentrated material to be discharged vertically without any bends, taking care to minimize temperature losses.
If it is continuous production, add a discharge pump. If it is batch production, as the old man from Haichuan said above, minimize resistance as much as possible.
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