Crushed salt with sand (slurry) Piping specifications

[AZMAG28]

Hello there. due to the repeated failures (abbrasion) of high sch carbon steel lines (4 to 6 in), i have been asked to propose most suitable piping for this process which is crushed salt disolved in water along with sand... as slurry. I came cross some prevous proposals of CS rubber lined, pp liner and other but did not last engouh more than 2 years at best. Any one has come cross this experience or any idea of what could be the accetable proposal for htis piping. Facility is for producing satureated brine (NaCl 26%).

thanks

 

[LittleInch]

Ooooh, nasty stuff there.

Corrosive and abrasive.

Usually rubber lined and / or PE lined is the go to solution. Any of the corrosion resistant materials won't like the abrasive nature which will strip off metal or strip off the protective coating they develop. Have you tried cement lined?, but at that sort of size you might be better just to build 5 lined pipelines at a time and then switch over when one of the leaks??

Can you use straight PE pipe?
Or look at UHMW PE pipe which is stronger than "normal" PE . Like this

https://www.dragonuhmwpe.com/product/117.html

Ceramic linings?

This is a good read

https://www.beaverprocess.com.au/le...time-,Polyurethane,, dredging, and hard rock.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[EdStainless]

What is your solids fraction?
What is your max velocity?
What is the max temperature?
Rubber lined is the first choice for corrosive slurry.
UHWM would be good option also.
Just remember that it needs a lot more support than steel pipe.

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P.E. Metallurgy, consulting work welcomed

 

[shvet]

but did not last engouh more than 2 years at best.

Are you sure this is the result of incorrect material choise, not an improper design or application of such materials? May be minor modifications are able to extend service life significantly?
Note that many materials for such environment may become so expensive that 2 years between replacement of a let's say lined CS would be an attractive alternative.