Methanol tank water washing and displacement plan
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Dear teachers: Our company currently has a 7,000-cubic-meter storage tank with an internal floating roof, which is planned to be taken out of use. Currently, there is approximately 200 cubic meters of methanol in the pipeline. Could anyone please provide suggestions on how to carry out the shutdown procedures, that is, plans for washing and displacement? Thank you! Urgent need.
For this, you need to find a professional cleaning team; they have specialized cleaning tools as well as appropriate plans! !
First, 200 tons of methanol are drained from the bottom of the tank into underground tanks or emergency tanks, and then transferred to other tanks. Second, the relevant pipelines are isolated using blind flanges; the tank is cleaned, water is added for dilution, and the mixture is discharged into tanks designated for unqualified material once the alcohol content drops below 0.5%. Thirdly, ventilation: open the upper and lower manholes for ventilation, and have the workers enter to remove paraffin and debris from the bottom of the tank, equipped with long-tube respirators or air respirators
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