Emergency Response & Disposal Master Manual for Heating Tube Corrosion Abnormalities

# Master Manual for Emergency Response and Disposal of Heating Tube Abnormalities in Corrosion ## Introduction This master manual corresponds to the entire anti-corrosion document system, which spans from Doc.33 to Doc.91. It establishes a unified on-site emergency operation foundation for operators, maintenance crews, and management staff by systematically sorting out all typical corrosion abnormalities, grading emergency response standards, standardising disposal workflows, and addressing post-event closed-loop handling and preventive optimisation requirements. It minimises equipment damage and batch production loss by eliminating chaotic temporary disposal when sudden corrosion risks arise. These three emergency grades are consistent with the red, yellow, and blue risk grading system and are used to classify all corrosion abnormalities. Blue minor hidden dangers are minor static time overruns, mild flange discolouration, and slight frosting that do not pose immediate failure risks. These hazards can be resolved during routine shift maintenance without interrupting production. Intensive monitoring of relevant production lines is required, and targeted rectification must be completed within seven days. Yellow general abnormalities include frequent filter pressure alarms, obvious tube wall etching fog, and continuous parameter over-limits. The following are classified as red significant emergencies: cross-contamination of fluoride and alkali, visible tube cracks, penetrating coating scratches, and heating tube leakage. These emergencies necessitate the immediate isolation of circulation loops and a temporary shutdown to prevent mass medium pollution. Disposal protocols are established for each abnormal condition. Operators immediately disconnect connected pipelines and initiate extended multi-stage cleansing and enhanced acid pickling to prevent ion cross-contamination. Production is only resumed after repeated sampling satisfies ion safety standards. To address tube leakage and rupture, the initial step is to close the inlet and outlet valves to discharge residual liquid. This is followed by the isolation of equipment and the completion of a formal accident investigation. The immediate cessation of circulation, the complete disassembly and replacement of filter elements, and a full pipeline flushing to remove accumulated abrasive particles are necessary in the event of a severe filter blockage that poses a risk of particle abrasion. A closed-loop monitoring process must be implemented subsequent to emergency disposal. The occurrence time, anomalous symptoms, disposal steps, and loss scope are recorded by the staff in designated ledgers. Management teams follow the five-step accident investigation process to identify the fundamental causes of accidents, differentiate between human operation errors, hardware defects, and unreasonable process settings, and develop targeted improvement measures to prevent the recurrence of incidents. Supplementary training will be provided to all on-site personnel in the event that new abnormal modes are identified, and pertinent clauses of anti-corrosion documents will be revised accordingly. It is mandatory to conduct daily pre-job risk briefings and semi-annual full-staff emergency drills. To guarantee that each employee proficiently executes isolation, dilution, and shutdown operations, simulation scenarios encompass all red-level major risks. For audit traceability, all emergency disposal records, exercise evaluation forms, and post-accident optimisation plans are archived in conjunction with full-lifecycle equipment files. This manual is a comprehensive defence line that combines daily risk control and rapid emergency disposal for the heating tube anti-corrosion system, complementing daily prevention and supervision mechanisms.