Scaling in plate and frame filter presses
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This post was last edited by li*ch1968 on 2010-9-27 20:09. Scaling occurs on the nozzles of the plate and frame filter press used for dust removal in converters – are there any good ways to deal with this issue? Why does it form nodes sometimes and not others?
If scaling occurs at the nozzles of the plate and frame filter used for dust removal water in converters, the incoming water can be softened or desalted.
Due to its high alkalinity, dust removal water tends to form scale when its hardness reaches a certain level; therefore, scale inhibitors need to be added to this water. Additionally, the use of aluminum salts as coagulants during the flocculation and sedimentation process can help absorb some of the calcium and magnesium ions, reducing the total hardness of the water and thus decreasing the likelihood of scale formation. It is unlikely that dust removal water will not form scale at all; due to the large fluctuations in water quality, the proper approach is to reduce or slow down the formation of scale.