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Honza_Basta
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Electric trommel with conveyor belt ( 12:06:49 FriAug 5 2016 )

Video here, my new improved toy...

  
geowizard
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Re: Electric trommel with conveyor belt ( 01:53:08 SunAug 7 2016 )

Honza,

I really like it!

Simple "toys" represent small scale examples that can be scaled up to clean up or larger scale.

Gear motors come in larger packages and they are great for this application!

:smile:

- Geowizard

  
Honza_Basta
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Re: Electric trommel with conveyor belt ( 05:46:44 FriAug 12 2016 )

:smile:

  
Honza_Basta
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Re: Electric trommel with conveyor belt ( 13:41:14 SatFeb 25 2017 )

So OK, there was enough playing with toys. No I´m planning large scale project.
There will be approx thousands of sand/gravel from river. It will be pushed to the shore by underwater dozer. It will be done because of ships - there is not enough depth now. And than it will be my right moment - to proceed that piles of sand through some screen and wash gold from it, than the sand will be taken away by a ship.
And my question is: what would be better for loading by a skid loader - trommel, or just a vibro-sieve? :confused: I do plan to build a mobile unit on a trailer.

  
geowizard
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Re: Electric trommel with conveyor belt ( 22:58:31 MonFeb 27 2017 )

Honza_Basta,

That's hard to imagine.

Do you have any illustrations? :smile:

- Geowizard

  
JOE_S_INDY
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Re: Electric trommel with conveyor belt ( 03:25:17 TueFeb 28 2017 )

Honza,

A trommel has many more moving parts to break, vibrate out of adjustment or otherwise cause greater need for maintenance. A trommel has been used, many times, to break up clay which other systems are not as efficient in doing.

A "Shaker Plant" with a steady flow of material going in should not present as many design and operating problems and should be better on your sands -- unless -- you are fighting clay.

I have to assume you have tested the sands to know there IS Gold in them. First things first!

All the best!

Joe




---
Wiser Mining Through Endless Personal Mistakes
 
 
Honza_Basta
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Re: Electric trommel with conveyor belt ( 21:34:40 TueFeb 28 2017 )

These "pets" - underwater dozers will clean the river form sand.



They will make piles of sand and gravel on banks, prepared to move it later by trucks or ships. In this time I can proceed it and remove "heavy metals" from the sand. There is gold, yes. Some 20 points in pan, but if they will scrape bedrock, it will be great jackpot... :smile: There is dam some hunderds metres upstream, with boat lift. Now there is hardly enough depth for larger ships.
A few kilometres downstream, in 2003 it was the same. I had tehre just a primitive highbanker... A REPORT HERE

  
Honza_Basta
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Re: Electric trommel with conveyor belt ( 22:58:36 TueFeb 28 2017 )

Quote: JOE_S_INDY at 03:25:17 Tue Feb 28 2017

Honza,

A trommel has many more moving parts to break, vibrate out of adjustment or otherwise cause greater need for maintenance. A trommel has been used, many times, to break up clay which other systems are not as efficient in doing.

A "Shaker Plant" with a steady flow of material going in should not present as many design and operating problems and should be better on your sands -- unless -- you are fighting clay.

I have to assume you have tested the sands to know there IS Gold in them. First things first!

All the best!

Joe



And what about noise? I mean that trommel is more silent. The locality is in a small town... :smile:

  
JOE_S_INDY
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Re: Electric trommel with conveyor belt ( 01:45:27 WedMar 1 2017 )

Both a Trommel and a Shaker Plant can be made to run at about the same noise level if you carefully pay attention to details.

Slapping, knocking and rattling all can produce noise, but if carefully designed to not allow unrestrained bumping and such they can actually be not as loud as you would imagine. Rubber mountings, springs and padding go a long way toward reducing noise.

Joe



---
Wiser Mining Through Endless Personal Mistakes
 
 
peluk
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Re: Electric trommel with conveyor belt ( 02:29:52 WedMar 1 2017 )

Honza,thanks for the pictures.
1) Strictly out of curiosity...is the underwater dozer remotely powered of is a diver operating it?
2)Are you allowed to haul the sand/gravel bottom material to another location for processing?
3)Have you sluiced a known quantity to find out if it is worthwhile to mine?(you stated 20 particles per pan I think) Is there consistent gold content or does it vary from barren to worthwhile?
4) A pickup truck backed to a pile of material could be loaded by conveyor belt or even shoveled into... or... wheelbarrow loaded.The noise would be minimal.

All I can think of is "let's get this show on the road!" I see this all the time in Nome.Pickup trucks can often be seen driving away from a deposit like this with the bed almost dragging and the truck cab looking like it's ready to be launched into space.

  
chickenminer
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Re: Electric trommel with conveyor belt ( 19:01:40 WedMar 1 2017 )

Wow ... pushing material underwater! That has to be so inefficient. Why are they not dredging the channel like they do here in the States?



---
Dick Hammond - Chicken, Alaska
Chicken / Stonehouse Creek Mining
Chickenminer.com
 
 
geowizard
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Re: Electric trommel with conveyor belt ( 01:01:42 ThuMar 2 2017 )


I translated the top part of the report:

Hey, fellas, so we again had some kind of contribution to the gold-rush theme ...

If you ever tried to tell someone that Vltava is auriferous, or that it can not sack up Neska gold, so do not believe him, kitty dotyčnej knows what he is talking, or is completely mešuge. Gold is in the Vltava River as ... For example, in conventional flood debris in the Vltava on one pan of sand one decent gold flakes and a few miniature. Archival materials mluvěj rejžování in gold through the whole city to the imperial island. Maybe rejžovalo further, though not so intensely in the annals mlčej. NESN From the time we notice a guaranteed gold in the sediment at the solution. The levies in Prague mint sou records Pshaw would have to neposvítili, DYS it had Castle of what would pulitrem and throw the rest dochcal.

DYS here once drove round Vranýho nad Vltavou Kona one of the many pravidelnejch inspekčně- prospecting trips, I tell myself I ought to take a look at the piles of gravel vybagrovanýho what the US is taj long vokukuju. I rode here the water a little below the ferry and stares what it is, it smells those bastards US heaps vodvezli! Noale scooped out here one left piles of sand promíchanej with a broken slate prorejžoval And a lot hele- there were five gold flakes racing standard size and Nakya miniatures. On the other basins, it was similar. Who was rejžovat to Elvu but also one that has quite vobyčejně fšech 5 together, so he knows that DYS is zlatonosnej matryjál on shore and dry, so just to satisfy substantially smaller zlatitost, PTRE it better kicking, kátruje and all.

So the next weekend the US here and there was a sluice kátrovačkou, fšim tim needy introduced within the scope and especially with čerpadýlkem and hadicema, kitty Hromatka That was far prasecky treatment of water to a man pulling water out here or there with sand.

Czech to English :smile:

- Geowizard

  
peluk
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Re: Electric trommel with conveyor belt ( 02:13:13 ThuMar 2 2017 )

Thanks for the translation,geo. The pictures indicate Honza_Basta has been at this bank cleanup with friends for a while. Maybe that material was not dredged up from the bottom but more likely it was. From the collection there in the bottles, it looks like it is paying dividends and there is no real need to move it elsewhere.

It appears the pump noise is tolerated since there are some in place.

I would also wonder how that dozer makes any headway pushing that load with limited traction.

  
Honza_Basta
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Re: Electric trommel with conveyor belt ( 14:02:39 ThuMar 2 2017 )

Hi, thanks for thoughts. :smile:

The dozer is Komatsu is D 155W, and it is remote controlled. There are maybe three companies having these dozers. They are used to clean fairway by it.
The report is from 2004 I suppose. But there were simmilar conditions - piles of sand pushed onto piles on shore... I can manipulate or scereen htese piles on the shore, with conveyor belt, or a skid loader... The sand will be than taken away by company cleaning the river.
Now I am waiting for low water to make some larger samples from sand in the river.

  
geowizard
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Re: Electric trommel with conveyor belt ( 14:38:54 ThuMar 2 2017 )


Watch this!

https://video.search.yahoo.com/search/video?fr=yfp-t-s&p=underwater+komatsu+d155w+dozer+specs#id=4&vid=e72ada4aae9d917635f761a7a9c60788&action=click

:smile:

-Geowizard

  
peluk
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Re: Electric trommel with conveyor belt ( 19:08:51 ThuMar 2 2017 )

Thank you for the response,Honza. It will be interesting to see how the sampling goes during low water.I saw the tractor video as well.

  
peluk
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Re: Electric trommel with conveyor belt ( 19:19:42 ThuMar 2 2017 )

In Honza's picture of the Komatsu "in action",it looks like the operator is sitting under an umbrella on the shore with the controls in hand. It looks like a slow operation.

  

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