A fire broke out on a tank containing 0.3 t of a mixed acid solution feeding a phosphating production line. The security guard raised the alarm. The tank eventually ruptured, spilling product into a retention basin. The fire resulted in an economic loss of €40,000. The fire is believed to have been caused by a faulty electrical component on the level sensor and the combustible nature of the tank (PE plastic). The line involved had been out of operation for maintenance since 20/12/2018. On 28/12/2018, the preventive maintenance was completed after 4 hours of testing. The line had been in preheating mode just 6 minutes before the fire broke out. Following the fire, a variety of actions were implemented: . modification of the tank’s materials (stainless steel); . replacement of the control relays (as a preventive measure); . modification of technology used to measure bath level; . installation of a preventive maintenance system with a thermal camera.
Source: Aria database
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