537 posts
re Bypass Chloride
Hello Belite,
Yes, not only the particle size distribution, but the specific surface area and particle density (specific gravity) as well.
Also, the brittleness of the crystals and agglomerates making up the dust can become a factor if they quickly break down by particle attrition during transport. This changes the conveying characteristics and may lead to blockages if the dust properties reach a critical point beyond the capabilities of the conveying system.
Regards,
Ted.
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537 posts
re Bypass Chloride
Hello Ahmed,
120oC shouldn't be a problem. However, the physical and chemical properties of the dust could be very different from time to time. Even changes in the relative levels of sulphates, alkalis and chlorides present in the dust could affect its conveying properties. These properties probably change dependent on kiln conditions.
Many things could be affecting the conveying properties of the dust at any time, and when all of them combine in a negative way, you could exceed the conveying capacity of the pneumatic system and a blockage would occur.
If the problem becomes too frequent I would suggest getting in an expert on the pneumatic system to make some adjustments or modifications to prevent the blockages.
Regards,
Ted.
11 posts
re Bypass Chloride
Dear Ahmed
Well, we are knowing that kind of problem.
One idea would be dosing an amount of raw mill dust or even CKD to the transport system.
With 12 % chloridies I think you will need it.
If you need more information kindly let me know
Regards
Harald