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The system is a complex electrical-instrument automatic control system. At present, there is no precedent for the domestic automatic unloading system and there is no experience to learn from. After repeated argumentation, the technicians finally decided that the automatic unloading system should use the world's most advanced PLC control technology and use the 500 series PLC produced by American AB Company as the control core of its hardware system. On March 6, the automated unloading system started linkage test; on March 16th, the loading and unloading workshop successfully used this system to unload 45 knots of naphtha, and then bid farewell to manual unloading.
On March 16th, the Qilu petrochemical storage plant loading and unloading workshop used an automated unloading system to successfully unload and dismantle 45 knots of cracked raw material naphtha, indicating that the country’s first automated unloading system had successfully passed the “testâ€.