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  1. billions

    Potential Causes for cracks in Suction Liner in Slurry Pumps?

    @artisi As for the liner material, read a paper that showed tungsten and another variation of it to be highly durable in impact and sliding wear applications specifically for slurry like this. Also, the company has materials engineers looking at the appropriate lines over the last yr or so as...
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    Potential Causes for cracks in Suction Liner in Slurry Pumps?

    @artisi Was getting more info as the week progressed. It was just my first week here as an EIT Yes, that recommendation was discussed internally. Unsure of what's next, I believe some testing/inspection. The issue with that maybe that they cant lightly tighten the bolts because the liner is...
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    Potential Causes for cracks in Suction Liner in Slurry Pumps?

    My boss who's fairly involved and I as well have not heard of vibration issues I think they're lookin into some failure testing but higher ups maybe trying to cover it up for their maintenance buddies by focusing on a small aspect or wrong issue I did show pics to a mech engineer and we agreed...
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    Potential Causes for cracks in Suction Liner in Slurry Pumps?

    @artisi idk where my reply went. Its bitumen ore , slurry, high d50 of 350, high fines. They've tried a PU liner and didn't work. It's a high impact zone. I agree. Based on the data and discussions with maintenance/reliability I've narrowed it down to Low temp during install (lower than MDMT)...
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    Potential Causes for cracks in Suction Liner in Slurry Pumps?

    Change of 50f per hour? That's it? I'm suspecting they've done from (-10 to -25) at that time, even colder now. Up to 85C pretty much quickly. Do you have any links /docs that I can see on the 50F/hr? Would be awesome
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    Potential Causes for cracks in Suction Liner in Slurry Pumps?

    Looking at very large slurry pumps with a high chrome white iron suction liner. We're seeing some very large cracks in the inside/hole/inlet of the suction liner. Could be many things like, over or under torqued bolts, rapid heating (really cold here), dropped it, large nose gap (more...
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    Difference in

    Hi I calculated piping losses earlier using the darcy-weisbach equation between the 30 & 32" line for the design composition and got ~22m of head. Friction factor assumed was .151 from design calc (unsure if this is right) My question is that now densities are higher (950-1000 kg/m3). How...
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    Froth Deaerator Performance and Measuring air leak into the system

    We have a froth deaerator, steam goes in to release entrapped air. Following the deaerator are pumps that are struggling, unkown if due to rise in air content. We don't have an air content measurement before or after. Density before is not very accurate due to high air content. What I would be...
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    Effects of Inlet Swirl on centrifugal pumps TDH

    Makes sense, unforseen consequences/overloading = bad even though TDH might increase. Thanks!
  10. billions

    Effects of Inlet Swirl on centrifugal pumps TDH

    Came across an interesting study and also read someone's response on a forum a long time ago. It states that by having counter swirl at the inlet (opposite of impeller) you can generate head as flow is increased. I do not know enough about pumps yet so I found this study...

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