Source:http://www.zwenfilter.com/news/1268.html Time:2023-01-12 Hits:78
ZWEN Sintered Powder Filter Tube Cleaning Method
Here are the different cleaning methods for different contamination
1. Reverse Flow
The variety of contamination is larger than the pore size of filter media.
You only need to use reverse flowing liquid or gas to through the filter tube.
2. High Temperature Burnout
This procedure is typically used with contaminant that hardens on exposure to air such as polymer, paint, adhesives, tape coatings, etc. The filter tube is placed in an oven and the contaminant is incinerated. Following incineration, the filter tube then goes through a liquid chemical cleaning process that may involve a series of cleanings with a variety of chemicals and a final neutralisation, if required, and filtered water rinse. This is both an expensive and lengthy procedure. A few large customers will have in-house facilities, but for the most part, this procedure is contracted out to independent specialised cleaning companies.
3. Chemical Cleaning
A variety of chemicals (solvents, acids, caustic, etc) can be used to dissolve the contaminant or process fluid (such as paint or polymer) if it has hardened on exposure to air.
4. Ultrasonic Cleaning
Surface contamination can be removed by ultrasonic cleaning in a bath containing detergent.
But deeply embedded particulate may not be removed.
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