# Emergency Response & Disposal Master Manual for Heating Tube Corrosion Abnormalities ## Preface This master manual matches the full anti-corrosion document system from Doc.33 to Doc.91. It systematically sorts out all typical corrosion abnormalities, grading emergency response standards, standardized disposal workflows, post-event closed-loop handling and preventive optimization requirements, forming a unified on-site emergency operation basis for operators, maintenance crews and management staff. It eliminates chaotic temporary disposal when sudden corrosion risks arise and minimizes equipment damage and batch production loss. All corrosion abnormalities are classified into three emergency grades consistent with the red, yellow and blue risk grading system. Blue minor hidden dangers refer to slight frosting, mild flange discoloration and minor static time overruns without immediate failure risks, which can be dealt with during routine shift maintenance without suspending production. Yellow general abnormalities include continuous parameter over-limit, obvious tube wall etching fog and frequent filter pressure alarms; relevant production lines shall be monitored intensively, and targeted rectification must be finished within seven days. Red major emergencies cover cross-contamination of fluoride and alkali, visible tube cracks, penetrating coating scratches and heating tube leakage, which demand immediate isolation of circulation loops and temporary shutdown to prevent mass medium pollution. Standard disposal procedures are formulated for each type of abnormal condition. For ion cross-contamination, operators cut off connected pipelines instantly and start extended multi-stage rinsing plus enhanced acid pickling, only resuming production after repeated sampling meets ion safety standards. For tube leakage and rupture, inlet and outlet valves are closed first to drain residual liquid, followed by equipment isolation and formal accident investigation. Severe filter blockage leading to particle abrasion risks requires immediate halt of circulation, complete disassembly and replacement of filter elements, and full pipeline flushing to clear accumulated abrasive particles. After emergency disposal, a closed-loop tracking process must be carried out. Staff record the occurrence time, abnormal symptoms, disposal steps and loss scope in dedicated ledgers. Management teams trace root causes following the five-step accident investigation process, distinguish human operation errors, hardware defects or unreasonable process settings, and formulate targeted improvement measures to avoid repeated incidents. Relevant clauses of anti-corrosion documents will be revised if new abnormal modes appear, with supplementary training arranged for all on-site personnel. Daily pre-job risk briefings and semi-annual full-staff emergency drills are mandatory. Simulation scenarios cover all red-level major risks to ensure every employee masters isolation, dilution and shutdown operations proficiently. All emergency disposal records, drill evaluation forms and post-accident optimization plans are archived together with full-lifecycle equipment files for audit traceability. This manual complements daily prevention and supervision mechanisms, forming a complete defense line combining daily risk control and rapid emergency disposal for the heating tube anti-corrosion system.
