Three persons died in a blast that occurred during the dismantling of a chemical boiler in a scrap godown. The contents of the boiler are not known. However, this incident is a lesson that any vessel before sold as a scrap should be cleaned thoroughly to ensure that it is free from chemicals. The incident might have happened during gas cutting of the vessel with trapped chemicals generating hot gases or undergoing runaway reaction and with improper venting. Provision for venting should be available to avoid pressure rise.
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