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Continuos Column

Any sort that runs continuous. Examples are beer stripping stills that have a continuously, vodka stills fed from a beer stripper or any sort of spirit doubler, meaning continuously fed pot still.

Re: Continuos Column

Postby jake_leg » Wed Feb 27, 2013 3:20 pm

@Manu My feeling would be that the thermometer at the top would have the quicker response.

@ZG 100% agree about the DC centrifugal pumps. The flow seems pretty constant, the rate is about right and food grade ones are about $20 on ebay.

Thanks for the tip Harry. I think I'm going to need an electronic translation though! :)
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Re: Continuos Column

Postby manu de hanoi » Wed Feb 27, 2013 3:28 pm

jake_leg wrote:@ZG 100% agree about the DC centrifugal pumps. The flow seems pretty constant, the rate is about right and food grade ones are about $20 on ebay.

zg was talking about flexible impeller pumps, rather like 65 usd
Regular aquarium centrifugal pump (not flexible impeller) are very sensitive to the wash level in the tanks.
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Re: Continuos Column

Postby jake_leg » Wed Feb 27, 2013 3:42 pm

OK, so the diaphragm pump is actually not a bad choice in that regard.
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Re: Continuos Column

Postby Andrei » Sat Mar 02, 2013 5:34 am

1 . For alcohol control in waste, in the lower part of a column it is possible to install the thermometer.
2 . Pulsations of the membrane pump don't influence column work.
3 . The Russian site is called homedistiller.ru (To type in the search box in Russian NBK) + google translate.
It is better to look so: http://forum.homedistiller.ru/index.php?topic=41608.0
4. The Best pump is peristaltic.
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Re: Continuos Column

Postby Andrei » Sat Mar 02, 2013 6:04 am

I remade plates. I made in 1 day.
18 pieces, distance between plates of 67 mm, diameter are 56 mm, a gap about 1 mm.
Pressure in a column of constant 10 mm Hg.
The free area is 20% from the pipe area.
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Re: Continuos Column

Postby ZeroGee » Sat Mar 02, 2013 6:22 am

manu de hanoi wrote:zg was talking about flexible impeller pumps, rather like 65 usd
Regular aquarium centrifugal pump (not flexible impeller) are very sensitive to the wash level in the tanks.
Definitely not true, Manu. Nearly all aquarium pumps are flexible impeller. Non-flexible impeller pumps are called "gear pumps" and, like the flexible impeller pump, are constant pressure pumps (CPP). Both are tough, handle sediment, back pressure and stand up to several years worth of continuous operation.

Diaphragm pumps are cheap for a reason: they can't handle sediment (grain bits) and tend to pack up. Less expensive varieties are generally low head (pressure).

In any case, for the continuous still to operate without constant adjustment (PID or hand), the delivery pressure must remain constant and the wash filtered free of sediment.
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Re: Continuos Column

Postby manu de hanoi » Sat Mar 02, 2013 6:36 am

Hi Andrei

You should keep the previous design for plates. The new design will give you less pressure but also less separation.

I think you had too much pressure because your riser tubes are too high. You should lower the height of the riser tubes to just above the bubble openings
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Re: Continuos Column

Postby Andrei » Sat Mar 02, 2013 6:48 am

As I filter a mash.
At the bottom of a barrel with a mash the aquarian pomp and the filter lies. Liquid constantly circles.
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the filter of rough clearing of water
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the filter of rough clearing of water
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Re: Continuos Column

Postby manu de hanoi » Sat Mar 02, 2013 7:00 am

manu de hanoi wrote:Hi Andrei

You should keep the previous design for plates. The new design will give you less pressure but also less separation.

I think you had too much pressure because your riser tubes are too high. You should lower the height of the riser tubes to just above the bubble openings

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Re: Continuos Column

Postby Andrei » Sat Mar 02, 2013 7:26 am

Thanks, I surely so will try.
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Re: Continuos Column

Postby Andrei » Sat Mar 16, 2013 4:07 pm

how to connect PID the regulator
The PID regulator with an exit on current. The SSR relay, (management on current).
Everything is very simple. Try to make. You won't regret.
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