Re: Fouling of Pipes

From: <Geoff>
Date: Tue Apr 02 2002 - 00:22:00 EST

Is it possible to use glass lined pipe to prevent the calcium adhering to the surface?
--- Ahmed Vawda <avawda@aksugar.co.ae> wrote:
> Hello Forum Members
>
> In the sugar industry, raw syrup is transferred in mild steel pipes. As the
> syrup contains a few hundred PPM of calcium, the pipes are scaled and have
> to be cleaned annually. Chemical cleaning and/or burning of the pipes are
> practised, each with its own pros and cons.
> I am not sure as to the mechanism of the calcium based fouling, but it is
> probably similar to that encountered in water piping.
> The syrup temperature is between 70 and 80 deg C.(158 - 176 F). Pipe
> velocities are usually about 1 - 1.5 m/s(200 - 300 ft/min)
>
> Any one out there that could kindly advise on the prevention and/or
> minimisation of this occurrence?
>
> regards
>
> Ahmed Vawda
> Process Engineer
> Al Khaleej Sugar LLC - Dubai
>
>
>
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