Continuous Stipper Build

We don’t condone the use of Continuous Stripping stills as a method of running 24/7 as this is a commercial setup only .
Home distillers should never leave any still run unattended and Continuous strippers should not be operated for longer periods than a Batch stripping session would typically be run to minimise operator fatigue..

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jdetechguy
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Re: Continuous Stipper Build

Post by jdetechguy »

You sure have my interest. We need a continuous stripper, but its commercial and I am just trying to learn from everyone that has tried.
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Re: Continuous Stipper Build

Post by LWTCS »

I don't have an opinion on what you have there as I don't understand why every other plate is a different diameter?
Dish plates are more of a semicircle no?
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Re: Continuous Stipper Build

Post by Getsmokin »

LWTCS wrote:I don't have an opinion on what you have there as I don't understand why every other plate is a different diameter?
Dish plates are more of a semicircle no?
Should work like the baffle tray pic in the link.
http://seperationtechnology.com/wp-cont ... 5/Dual.png
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Re: Continuous Stipper Build

Post by LWTCS »

I don't see any way for vapor to be introduced below a liquid bed? How does this system promote/optimize phase change beyond what gets flashed at the injection sight?
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Re: Continuous Stipper Build

Post by Getsmokin »

I'm going to start with this is not my idea, it was found in some old distilling text. The transfer happens between the plates (I did say inefficient).
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Re: Continuous Stipper Build

Post by LWTCS »

I can't see see vapor bubbling up through any of the liquid beds. Though I can see (theoretically) the brute force of enough heat flashing a bit of alcohol down the length of the column I suppose?
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Re: Continuous Stipper Build

Post by Getsmokin »

Well. If doesn't work well enough, drilling some holes and adding a downcomer wouldn't take much effort.
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Re: Continuous Stipper Build

Post by LWTCS »

Getsmokin wrote: Fri May 08, 2020 12:01 pm Well. If doesn't work well enough, drilling some holes and adding a downcomer wouldn't take much effort.
Sure. Really a good way to improve upon a point of view.
You could say that you're taking a bullet for the team.

Either way, your work looks tidy.
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Re: Continuous Stipper Build

Post by shadylane »

Getsmokin wrote: Fri May 08, 2020 9:27 am
LWTCS wrote:Can you talk a bit more about your thoughts on the plate design?
Plan was for a plate that could handle solids well. My understanding that dish and donut plates are pretty inefficient, I was hoping to get around that a little bit by increasing the surface area and adding more plates. Probably didn't answer your question..
Sounds logical
How may plates does that thing have.
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Re: Continuous Stipper Build

Post by Getsmokin »

shadylane wrote:
Getsmokin wrote: Fri May 08, 2020 9:27 am
LWTCS wrote:Can you talk a bit more about your thoughts on the plate design?
Plan was for a plate that could handle solids well. My understanding that dish and donut plates are pretty inefficient, I was hoping to get around that a little bit by increasing the surface area and adding more plates. Probably didn't answer your question..
Sounds logical
How may plates does that thing have.
So I am only really counting the donut plates (I may be incorrect with this mindset) with 16 at the moment, so with the dish plates 32. I have enough to do 40 total. On 4" spacing.
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Re: Continuous Stipper Build

Post by Yummyrum »

Larry , as I understand them , there isn’t a fluid bed as such .
There is a fluid waterfall . ... a 360° waterfall from plate to plate as it cascades down . The vapour blows through the waterfall as it moves up .This is where the exchange occurs.

How a constant 360° sheet of liquid happens is where I have a hard job imagining. In my mind there would always be “gaps” that the vapour would blast through a the path of least resistance . And that would negate any exchange o that plate .
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Re: Continuous Stipper Build

Post by LWTCS »

Yummyrum wrote: Fri May 08, 2020 2:38 pm Larry , as I understand them , there isn’t a fluid bed as such .
There is a fluid waterfall . ... a 360° waterfall from plate to plate as it cascades down . The vapour blows through the waterfall as it moves up .This is where the exchange occurs.

How a constant 360° sheet of liquid happens is where I have a hard job imagining. In my mind there would always be “gaps” that the vapour would blast through a the path of least resistance . And that would negate any exchange o that plate .
That's just about the way I imagin it happening too Yummy.
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Re: Continuous Stipper Build

Post by shadylane »

I had to look up "Disk and donut trays"
They not only exist, their used for what Getsmokin is wanting to do.

Quote
Disk and Donut Trays
This is another un-perforated baffle-type tray with large area for liquid down flow for use in low-efficiency and highly fouling applications. As the product name implies, the trays alternate in disk and donut shapes. In these trays the vapor passes through a curtain of liquid instead of typical intimate contact on the tray deck
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Re: Continuous Stipper Build

Post by Yummyrum »

I’d imagine that keeping it dead level would be mandatory .
Perhaps a slurry works better in these than a thin wash in regards to maintaining an even curtain .
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Re: Continuous Stipper Build

Post by LWTCS »

I can absolutely see how these are best at not "fouling" (clogging).
Guess we'll have to see how much (if any) alcohol makes it down the drain? Certainly is an easy solution with respect to fabrication.
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Re: Continuous Stipper Build

Post by Yummyrum »

One thing thats always intrigued me about these is how close the plates are . When you look at a 4” perf plate , you are looking at 4- 6” min Spacing and it would seem up around 10” if you want to push it hard , yet all the pics of these donut plates have what would seem much closer spacing , perhaps 2” .

So I’m wondering if the entrainment issues are lower in these plate styles .
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Re: Continuous Stipper Build

Post by RC Al »

Id love to see that glasser running, a beautiful stack of continuous booze waterfalls, add a bit of mood lighting, maybe a saxophone in the background, one sexy beast :P
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Re: Continuous Stipper Build

Post by LWTCS »

Yummyrum wrote: Sat May 09, 2020 12:23 am One thing thats always intrigued me about these is how close the plates are . When you look at a 4” perf plate , you are looking at 4- 6” min Spacing and it would seem up around 10” if you want to push it hard , yet all the pics of these donut plates have what would seem much closer spacing , perhaps 2” .

So I’m wondering if the entrainment issues are lower in these plate styles .
I would say definitely yes. There really isn't going to be any pressure at all because there isn't going to be any liquid hold up beyond the time it takes for a given amount of beer to plop on and roll off the plate.

Hey man, as long as the alcohol flashes before it goes down the drain. Is all that matters.

Fouling wise, seems like throughput speeds would be crazy fast. But I would think a certain amount of requisite dwell time would be necessary because of the inefficient nature of the plates. Running really fast would have to have a bunch more heat I would think? And more heat often means less separation ( lower abv).
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Re: Continuous Stipper Build

Post by Getsmokin »

strip tower.jpg
strip tower1.jpg
Got the steam port/ tower base section put together.
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Re: Continuous Stipper Build

Post by LWTCS »

GetSmokin what are the plate spacing?
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Re: Continuous Stipper Build

Post by Getsmokin »

LWTCS wrote:GetSmokin what are the plate spacing?
At the moment big and little plates are on 2" spacing.
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Re: Continuous Stipper Build

Post by shadylane »

LWTCS wrote: Sat May 09, 2020 3:09 am Hey man, as long as the alcohol flashes before it goes down the drain. Is all that matters.
That's what count's on a stripper. :thumbup:
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Re: Continuous Stipper Build

Post by Getsmokin »

feed.jpg
feed 1.jpg
feed 2.jpg
Nothing to exciting here..
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Re: Continuous Stipper Build

Post by Getsmokin »

PC HX.jpg
New PC Parts. tube in a tube in a tube
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Re: Continuous Stipper Build

Post by Getsmokin »

PC2.jpg
PC3.jpg
Pc Assembled. Can honestly say that massively sucked to weld!
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Re: Continuous Stipper Build

Post by The Baker »

Tube in a tube in a tube: a Davies condenser?

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Re: Continuous Stipper Build

Post by Getsmokin »

The Baker wrote:Tube in a tube in a tube: a Davies condenser?

Geoff
Possibly. I believe I have vapor and cooling in different places. Vapor inside center tube and outside tube #2.
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Re: Continuous Stipper Build

Post by Getsmokin »

Tower.jpg
Most of the column. Pump on the way...
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Re: Continuous Stipper Build

Post by shadylane »

Yummyrum wrote: Fri May 08, 2020 2:38 pm Larry , as I understand them , there isn’t a fluid bed as such .
There is a fluid waterfall . ... a 360° waterfall from plate to plate as it cascades down . The vapour blows through the waterfall as it moves up .This is where the exchange occurs.
On the Disk and donut trays
I think there's more happening than just the vapor blowing through the reflux water fall
Maybe the vapor is also heating the plates from below and when the reflux falls on the hot plate, some of it boils
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Re: Continuous Stipper Build

Post by Getsmokin »

In my mind there is more going on than a waterfall as well. Like Shady said heated plates and lots of terbulance is what I imagine, not so much waterfalls. But I haven't fired it up yet to see myself.
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