Service life of the roller screen at the coal grinder outlet
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Roller screens are generally installed at the outlet of coal mills; how long is their service life? Although its material is stainless steel, which makes it relatively wear-resistant, it will still wear out. Generally, at what thickness of wall wear does it become necessary to replace it? Welcome to participate in the discussion; we especially hope that those with experience in this area can provide data.
Generally, it needs to be replaced every three years. As for how thick it should be before replacement, there is no experience-based guideline available, as stainless steel is affected not only by wear and tear but also by chloride ions in coal slurry, which can cause pitting and make the steel brittle
Thank you for your reply. I hadn’t realized that stainless steel is not resistant to chloride corrosion. The chloride content in our coal is very high, and this should be given attention to in the future.