Gents:
may i add that in our systems we always install cleanout ports at convenient intervals so that operations may flush with water.
At 10:34 PM 6/19/2002 -0700, you wrote:
>Steve,
>
>Mlk of lime at 5.5% will behave generally like water as far as the fluid
>mechanics are concerned. The problem comes from its propensity to deposit. The
>higher the solids content the quicker and more frequently it happens.
>
>Generally progesssive cavity pumps and pinch valves are used.
>
>Plastic hoses can be used to enable the overcoming of blockages. Dead ends
>should be avoided because of settlement.
>
>Geoff
>--- smckennz <Mechproj@xtra.co.nz> wrote:
>
><HR>
>Hi there
>
>I have to design a ring main for slurry about 5.5% solution of burnt
>lime. Demand around 17m^3/h.
>
>It has been about 4 years since I have done one and cannot remember
>the transport velocity (3m/s minimum, I think) and how to calculate
>the friction loss. I do remember that standard slurry theory does not
>work very well with this difficult but common material. Also a ring
>main will bog out if the solids reach around 10%
>
>Can anyone provide any guidance or references?
>
>Thanks
>
>Steve McKenzie
>
>
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Received on Thu Jun 20 07:11:00 2002
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