Is severe wall sticking in a disc granulator a formula problem?
Severe wall sticking in a disc granulator doesn’t necessarily mean the formula needs changing. Raw material moisture content exceeding 35%, peeling of the anti-stick coating on the inner wall of the disc, or scraper failure can all cause wall sticking. Checking moisture content and scrapers first, and then considering formula adjustments, is a more efficient troubleshooting approach. The essence of wall sticking is that the adhesion between the material and the disc surface exceeds the dynamic balance between centrifugal force and scraper cleaning force. First, distinguish whether it’s “the material is too sticky” or “the cleaning is inadequate” to address the problem effectively.
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