Material Drying
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PESU Hopper Drying Requirements
Problem Phenomenon
PESU hopper drying with insulation and sealing, inlet air temperature and dew point control.
Cause Analysis
PESU hopper drying requires sufficient insulation and minimal leakage; inlet air temperature maintains pellets at 135℃; dew point -40℃; sufficient time; uniformity.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solution
①Hopper insulation and sealing; ②inlet air temperature monitoring; ③dew point detection; ④time guarantee; ⑤uniformity verification.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PESU hopper drying is a common method; condition control is the key to effectiveness; monitoring ensures quality.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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