Common Fault Diagnosis and Maintenance Strategies for Granulators
As a core piece of equipment in fertilizer production lines, the granulator's operating status directly affects the efficiency and economic benefits of the entire production line. Mastering scientific fault diagnosis methods and systematic maintenance strategies can significantly extend equipment life, reduce unplanned downtime losses, and create continuous and stable production value for enterprises. I. Common Fault Phenomena and Precise Diagnostic Procedures 1. Granulation Quality Issues Symptoms: Uneven granules, insufficient strength, decreased pelletizing rate Diagnostic Steps: Check raw material ratio: Verify the accuracy of nitrogen, phosphorus, potassium, and binder proportions. Check raw material moisture content: Take samples to determine moisture content; the normal range should be 25%-35%. Analyze raw material fineness: Use a sieve analyzer to ensure that more than 80% of the raw material passes through an 80-mesh sieve. Check granulation parameters: Verify key parameters such as disc tilt angle (35°-45°), rotation speed (20-30 rpm), etc.
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