ฝัง
- เผยแพร่เมื่อ 25 ก.ย. 2023
- I grab a kilo of mine dumps from MineOperator, concentrate them on the bump-sluice shaker table and then analyze the quantity of gold. The results may surprise you!
Keywords: Gold prospecting, Gold Extraction, Gold Shaker Table, Gold mining, Gold Mine Dumps.
Prospecting & Panning Gold from a Mine Dump by MineOperator:
• Prospecting & Panning ...
Those are decent numbers for ore that is just sitting on the ground waiting to be processes. 5 guys process 10 tons in a day, that is a decent wage. Mine Operator is a high quality team :) Glad to see you connecting with the best of the best :)
Loving how you take it from the ground, all the way through the process of a quasi assay. The shaker table looks like its running great as well!
Hi Alex. The table works well for the very limited types of ore that I've put through it. The performance on beach sand is not quite the way I want it because rejection of black sand could be better. I'm still waiting for the rubber mat to uncurl so that I can cut some grooves and try it.
@@orophilia welcome to my world! 🤣
Black beach sand is a nightmare to pull gold out of, especially when the gold is tiny flat flakes. Hopefully the rubber matting works like you want it to.
@@alexmiddleton2818 Yes, it's a very different problem. Much harder in my opinion.
Dave, it was a pleasure working with you. Thanks for coming out and helping us determine the grade of some ore we have sitting on a mine dump. If you're interested in ore from another location, let me know. We have some ready. About 6 tons worth.
I enjoyed it very much, also. Thanks for the tour and the ore. I'm busy for the next couple of weeks. After that I'd love to take you up on your offer. 6 tons is nothing to sneeze at. All the best. -- Dave
Thank You for sharing your test
Thanks for making the video and explanation
I am going to mark this video fro future reference. Thank you.
Thanks, Lars.
As no system is a 100% efficient. You're gonna find something in the tailings
Good stuff.
That doesn't surprise us; miners will often gut the ore, and leave scraps. We appreciate you taking the time to do the science. You might perform a similar test to prove the efficiency of your process or maybe you have, and you can just point us in that general direction.
Take a look at Chasing Ryan's Gold Ore. I show photomicrographs of the gold in the cons and in the tailings, a better comparison. I should do the detailed measurements but I haven't got around to it yet. -- Dave
We have reviewed video footage of their processing facility. In contrast to traditional conveyor belt systems, our operation relies on water-based methods for ore transportation. Furthermore, we extract gold from various points within the process. One notable advantage of this approach is the effective suppression of dust through the use of water.
Notably, most free gold does not need to traverse the entire length of the process since it is liberated early on. As a result, a jaw crusher isn't the initial step, as a significant portion of the sample already meets the particle size criteria, resembling a talcum powder-like consistency.
If you're familiar with dredging technology, then you'll easily grasp the concept of how we move the ore around from machine to machine. We also employ membranes, can be anything from a silt bag to an ion exchange...etc. P.S. The same technology could also transport ore from deep underground.
@@Jatslo Quite interesting. Yes, I agree that dust is to be avoided and that water transport through the system has serious advantages. I'm working on a "casual prospecting" flail mill that uses water flowing through the mill to move the pulverized material directly onto the table. I'm aware that the amount of water in the mill is crucial to performance and throughput. It's an interesting design challenge. I'm trying to get 100 kg per hour through the mill and shaker table. Big enough for a micro-mining operation. -- Dave
In our operations, we make use of conical mills, prized for their exceptional ability to produce an extremely fine, powder-like texture, thereby maximizing surface area utilization. We've observed your adept use of multipliers in your analyses, a vital consideration when operating on a larger scale to achieve cost-efficiency. For instance, deploying 100 Turkish coffee grinders has the potential to outperform traditional assets while maintaining significantly lower costs. It's also noteworthy that disc grinders can achieve a similarly fine, flour-like consistency.
When it comes to crushing equipment, the jaw crusher alone can deliver results on par with a flail crusher. Occasionally, this may require running materials through the crusher twice to achieve optimal outcomes. The key takeaway here is the importance of creating a scalable system, where a small system's work can be replicated to yield substantial results, or you can scale up by increasing the size of the operation.
@@Jatslo I enjoy this type of discussion very much. I am not a miner myself, I just do a bit of casual prospecting in the desert. However, I find the engineering challenging. Can one start with a very small (micro-) mining effort and make enough to build the business? What are the minimum start-up costs and what would such a plant look like? Are small shaker tables the way to go or are there better concentration methods? What mill is the right one for the micro-miner?
Excelente
Can you make a machine that rapidly (qualitatively) determines the Gold concentration in your conts sample? It seems very labor intensive, still, after centuries.
The assay labs have those machines and they are very expensive. The alternatives for the poor miner are limited to fire assay and chemical analysis, both of which take time. Chemical analysis is easier and less expensive but requires care. If the gold is locked up in sulfides aqua regia will not dissolve it, so other methods are needed, like roasting. Tellurides pose another problem that I have not researched.
The major assay labs such as ALS and SGS also use fire assay to reliably quantify gold content. There are a number of different techniques that can be used to quantify other elements including silver, but they rarely work well for gold. Also because gold occurs often quite nuggety. If you're interested, take a look at the ALS brochure, they explain the strengths and weaknesses of most techniques and for which elements they are suited.
So about $0.55 / ton. Is that good?
At 9 grams per ton I get around $500.00 and it doesn't take a whole lot to transport and process, so I think it's a decent operation. One estimate tells nothing, the whole lot will be assayed, I'm sure.
@@orophilia OHHH MT is metric ton. Got it. It thought you meant 9g/1000 ton. PPT is g per kg so PPM is g per metric-ton. Sorry I was confused. Yah 9 grams for ton seems good.
Where can I get this shaker table? I love that compact setup!
I'm sorry Jack, I made this one and I don't make anything for sale.