Hydraulic Plunger water movement.

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Here is a stainless steel one for making cheese. They are teflon coated.

Interesting side note, 6,000 pounds of cheese per hour is passed through this machine.
 
The candy industry would probably use FDA grade stainless rather than PTFE... durability and cost, to have this milled out of stainless would be much cheaper.

If you guys were really going to take a stab at this and build 10 of these monsters, you could go with a company like protomold and have the auger blades injection molded in a modular stackable way.

It would probably take about 3k to get this done and the part cost would be relatively low, allowing you to stack as many or few of the blades together as you want. You could get 200 blade segments made almost as cheap as to get 25 of them.
 
I'd stick with a propeller. A prop is simply one slice of the auger anyway. If the auger is 1' or 100', it will still move the same amount of material. A prop can be used MUCH more cheaply than what you are proposing, and probably more energy efficient. (Not that it wouldnt be friggin sweet to have all those machined parts!!!)
Take a look at some of the swim-against-the-current-for-exercise home lap pools. They use a small hydraulic (hence, submersible) motor (still 5HP though) to run a sweet little prop. They look like those propellers from a submarine, with many long sweeping blades.
 
The longer augers will help the "pump" work against head. We don't have head to work against. A prop (Or two stacked) would likely do what we need.


Also if you wish to search for augers... I suggest searching for "screw conveyors". That is what industry calls these things.
 
BeanAnimal said:
The longer augers will help the "pump" work against head. We don't have head to work against.
Click to expand...

You do when it stops and then reverses. That is a lot of head to deal with. I think (I don't know) that the start ups will cause more problems for the motors then the actual running and turning off will. The Auger will decrease (I believe) the stress against said motor.
 
Bishop said:
The candy industry would probably use FDA grade stainless rather than PTFE... durability and cost, to have this milled out of stainless would be much cheaper.

If you guys were really going to take a stab at this and build 10 of these monsters, you could go with a company like protomold and have the auger blades injection molded in a modular stackable way.

It would probably take about 3k to get this done and the part cost would be relatively low, allowing you to stack as many or few of the blades together as you want. You could get 200 blade segments made almost as cheap as to get 25 of them.
Click to expand...

I am sure there are augers all ready made and available for sale. Just have to find the right one for the job. (Why reinvent the wheel?) Then we could modify the surronding equipment to match it.
 
I notice I am the only one that is posting to this thread right now, but I have another thought.

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Has anyone tried adding a couple enductors into a 6" or 8" pipe attached to a tank to see if they would cause an enducted water column flow?

You would think, just like walking around a circle in a kiddies pool causes all the water in the pool to flow with you, would happen through this pipe.

Maybe I am wrong?!?
 
Nice find, that's basically what I was talking about... a modular system injection molded...

Wonder how much per segment without the metal inserts... looks like it is keyed, could pick up a nylon hexagon rod and turn it down; modify an iwaki magnetic head to drive it.

Then all you need is a strong reliable motor; for reliabilites sake, it makes sense to me to put two motors on this, one on each end with clutches, that way you can reverse direction quickly without wearing out the motor.

60RPM on something of this size would move a lot of water.
 
WOW, quite a few post during the day. ok well i was gonna post stuff about how to make the auger but i see we havea few leads on ones that are already made, excellent.

for the two motor idea, the only simple clutch system i see would be something like a right angle triangle style tooth, where one way the teeth would grab and the other way the would just kinda bump over the cog or what not that it normally grabs on. again wear issues will come into play, but that kinda system might make things easier. definately something to look into if i cant find a suitable motor.

well keep the input coming, as a thousands minds are better than the mind of a single genuis, and i know i am know genius.

Tim
 
dont know about the eductor idea, as that would be doing something that the auger is trying to get away from, using big power-hungry external pumps to create flow. hopefully if the project works then it would be nice to see something like 100gp per 20 sec of water moved for somewhere in the balpark of a 100 or so watts, and the the 12v motor a comtroller can be programmed to make all othe wave makers look like laminar flow

i also talked to someone today who, in his spare time helps with the rebuilding of reefs, he said that a major problem they have is getting the coral to stay attatched, meaning that is we achieve the flow rates we want then the typical epoxy or superglue might now live up to the task.

just a few more things of thought for ya

Tim
 
also someone should call and get prices on the lundell plastic auger posted by yellow tang, might be what we need, i get an email addy fomr them and i'll contact them

Tim
 
You "could" find mold and cast an auger used for post holes or other drilling. Casting resins are pretty cheap. The whole thing could also be overlayed with a layer or two of fiber or carbon fiber... or even cast with fiberglass strands. You may find a cheap pre made scroll... but chances are they are pretty spendy.
 
well YT, looks like i am the one who is only posting now,lol, anyhow, i emailed about 10 places to try and ge some price quotes on some plastic augers. If anyone else would like to contact some comapnys that they find that offer anything close to what we are looking for, then that would be great. I am hoping to turn something up for a auger supply company, mainly because that will be the deciding factor as to what size motor we need.

ok, alrighty then

Tim

oh yeah , hreefer, Mark at fin&feather says he is looking forward to seeing what we come up with
 
If a suitable submersiable motor can not be found, the shaft drive idea is still good. I do have another idea though. A hydrostatic drive using a pressure pump and tank water. Likely not hte most efficient thing in the world. It would take a pressure rated pump (sequence lets say) and a small water turbine. The direction would either be changed by a valve body or seperate turbines. You would not have to worry about contamination. Kinda the same idea as a waterpick messaging shower head.
 
yeah i am facing the fact that is a internal pump can't be found then i will have to find a good external pump and then design up aeasy to manufacture seal for it.

oh yeah, hreefer, i dont have the master cam on disk anymore but i do know a guy who knows a guy who.... that has the disk, so i can get it if you know what i mean, i know i can still draw stuff in the program, heck i designed a 6 piston break caliper using the program, just a little rusty

Tim
 
Oceansmotions.com sells a real simple device that does the same thing. I have the 4way and am real happy with it.
 
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