Magnesium oxide desulfurization tower materials
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I would like to ask everyone: After doing some research, I found that the materials used in most wet flue gas desulfurization towers are carbon steel with a glass flake anti-corrosion lining, or fiberglass reinforced plastic desulfurization towers. I wonder which type is more commonly used in industry? If a carbon steel structure with a glass flake anti-corrosion lining is used, what are the various options available for choosing the carbon steel? It’s best to have industrial applications
Ordinary carbon steel will suffice, as long as it has sufficient strength, thanks to the glass flake anti-corrosion lining.
Ordinary carbon steel will suffice, as long as it has sufficient strength, thanks to the glass flake anti-corrosion lining.
Is Q345R feasible then?
Regular carbon steel will suffice. Q345R also falls under the category of carbon steel.
Mm-hmm, okay. Thank you:handshake
Mm-hmm, okay. Thank you:handshake
This grade is generally not used; 235B is sufficient
I took a look at the answers. It’s worth mentioning that conventionally, Q235B is used along with glass flake coating for corrosion protection. However, there are two issues: first, there is a limit to the thickness of Q235B that can be used for tower structures; I can’t remember exactly the limit, but it’s probably no more than 16 mm. If this limit is exceeded, another material must be used. Another factor to consider is the location of the desulfurization tower – in the cold regions of northwestern and northeastern China, if the tower’s exterior is protected using glass flake coating instead of an alloy lining, then when the tower stops operating in cold weather, the tower’s structure will expand and contract due to temperature changes, causing the glass flake coating to crack and peel off.
Even with tower insulation, thermal expansion and contraction of the shell are possible