Material Drying
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PET drying energy consumption optimization
Problem Phenomenon
The drying system accounts for 15% of the plant's electricity consumption, and cost pressure is high
Cause Analysis
The dryer runs continuously at full load, dry air is wasted when the actual usage fluctuates, and there is no heat recovery; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
Equip the dryer with a heat recovery device; adjust the air volume according to output; check the hopper insulation layer; after adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record the parameter changes, so as to locate effective measures
Key Takeaway
Energy consumption optimization relies on heat recovery and on-demand air supply; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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