Problems with slurry tank equipment
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I have a slurry tank with PVC and VCM as the media. The customer requires that the roughness of the inner surface of the equipment be no more than 0.3μm. Why is this? Is it really necessary to set such high standards?
After the polymerization reaction in the polymerization reactor is complete, the slurry inside is pumped to a slurry tank. This tank contains the monomers needed to complete the conversion process; moreover, the slurry tends to polymerize again and stick to the walls of the tank. Therefore, the slurry tank must be smooth, with the roughness of its internal surfaces not exceeding 0.3 μm.
It was proposed based on the design requirements of the polymerization reactor!
The slurry in the slurry tank contains unreacted monomers, resulting in self-polymer adhering to the tank walls.