Blockage in the coal slurry pipeline! Urgent! ! !
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This post was last edited by jordan569 on 2013-1-6 at 22:33. Due to the small pipe diameter (DN25), the oil-coal ratio is 1:1. Low-pressure coal slurry pipelines are prone to clogging. How does everyone handle this issue? Urgent! ! ! This post was last edited by Zhenzhen Youci on 2009-4-14 16:55. Note: $ # , $ $
Is it possible to increase the conveying pressure or reduce the coal particle size?
Upgrade it! It’s abnormal not to check for blockages in such a small DN! I wonder how you designed it? Changing it to DN50 would definitely give better results~~ If it weren’t for the low temperature, we could use steam to heat the pipeline! Or slightly increase the pressure to 0.2 MPa. Try it out! This post was last edited by Zhenzhen Youci on 2009-4-14 16:54.]
1. The flow rate is only 1 cubic meter per hour. 2. It comes out of a tank at atmospheric pressure
For the upper flushing oil system, flush it if it gets clogged.
1 Steam tracing 2 Improve the piping to reduce horizontal and upward flow as well as dead zones 3 Increase pressure, up to 0.5 MPa 4 Top flushing oil
This post was last edited by stx028 on 2009-5-5 15:18. Sludge settlement is mostly caused by too slow flow rates; our laboratory’s data shows that no blockages occur at flow rates of ≥0.5 m/s. Of course, the ratios of kerosene used are different, but increasing the flow rate does indeed help to prevent blockages. (Experience from Beijing Coal Research Institute) Additionally, an excessive number of 90-degree elbows and U-shaped elbows also make it easier for the coal slurry to settle. Therefore, when designing, try to use elbows with large radii. The above are just my personal opinions; I welcome everyone’s feedback