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A simple analysis of how to select an anti-corrosion coating for the outer wall of a stainless steel tank


Release time:

2019-03-19

What is a stainless steel storage tank? In fact, it is a type of storage tank. The steel sealed container used to store liquid or gas is a steel storage tank. Steel storage tank engineering is an essential and important infrastructure in petroleum, chemical, grain and oil, food, fire protection, transportation, metallurgy, national defense and other industries. Our economic life is always inseparable from large and small steel storage tanks, steel storage tanks play an irreplaceable role in the development of the national economy. Let's talk about how to choose the anti-corrosion coating of its outer wall: the coating choice of the outer wall of stainless steel storage tank: if there is no thermal insulation layer, it is usually not in contact with the ground or soil

What is a stainless steel storage tank? In fact, it is a type of storage tank. The steel sealed container used to store liquid or gas is a steel storage tank. Steel storage tank engineering is an essential and important infrastructure in petroleum, chemical, grain and oil, food, fire protection, transportation, metallurgy, national defense and other industries. Our economic life is always inseparable from large and small steel storage tanks, steel storage tanks play an irreplaceable role in the development of the national economy. Here we talk about how to choose its outer wall anti-corrosion coating:
Coating selection of the outer wall of the stainless steel storage tank: if there is no thermal insulation layer, it is usually necessary to consider the environmental conditions that do not touch the ground or soil, such as the coastal atmosphere. Epoxy zinc-rich primer, epoxy mica intermediate paint and polyurethane topcoat are usually used for anti-corrosion. In addition, it is sometimes necessary to consider the operating temperature of the storage tank. For the coating at the bottom of the outer wall of the stainless steel storage tank: the part contacting the ground or soil is usually similar to the anti-corrosion protection of the outer wall of the buried pipeline. Two epoxy asphalt coatings are used, each 125um, totaling 250um. There are also thick film type modified epoxy coating as the bottom of the anti-corrosion coating, coating thickness between 200- 300um. Anti-corrosion coating on the top of the stainless steel storage tank: the anti-corrosion coating on the top of the storage tank is the same as the coating system on the outer wall of the storage tank, and the atmospheric corrosion environment needs to be considered. In addition, due to the needs of maintenance and monitoring and inspection, it is necessary for personnel to move around the top of the storage tank, so the top is usually made into an anti-skid rough surface, and the method is to evenly sprinkle 60 -80-80-purpose quartz sand between two polyurethane finishes, in order to prevent personnel from slipping during operation and causing personal injury.
The above content is a brief introduction about the selection of anti-corrosion coating for stainless steel storage tanks. Remember, safety first, especially in this corrosive industry, should pay attention to protective measures.