Repair method after SF double-layer storage tank is corroded

1. The first thing to do is to clean the oil in the sf double-layer storage tank, and clean off the rust and impurities on the inner wall of the oil tank. Note that before entering the oil tank after cleaning, a relevant indicator in the sf double-layer storage tank must be tested to avoid safety accidents after exceeding the standard.
 
2. If the thickness of the bottom plate of the sf double-layer storage tank is less than 4ram, then a round earth embankment needs to be built and water is poured into it to prevent sparks during the drilling process.
 
3. After drilling the flange cover with a drill, remove it to remove the faulty steel plate at the bottom of the tank. 4. Remove the oil-soaked tar sand that is 30-4o mm deep from the bottom of the double-layer oil tank. At the same time, install two semi-circular flange pads on the tank bottom and screw the bolts.
 
5. After removing the corroded part of the sf double-layer storage tank, it is necessary to install a short flange tube of less than 100 mm in length, and then pad it with rubber asbestos. Use the place where the sf double-layer tank is not sealed to check whether there is a leak.
 
The above is the treatment method after the sf double-layer storage tank is corroded. I hope it can help everyone. Generally, the corrosion of double-layer oil tanks is also related to the service life. The longer the time, the greater the possibility of corrosion. Therefore, in order to extend the service life of the double-layer oil tank and reduce the probability of maintenance, it is also necessary to perform good maintenance on the storage tank during use.