I've got a 1974 collection on slurry - Proceedings of Hydrotransport 3 (BHRA Fluid Engineering, ISBN 0 900983 37X), so yes, the concepts and practice have been around for some time.
You probably already have done this, but give a crack at hydrotransport or hydrohoist slurry transport out on the...
Chris,
Our background and experience with tails is primarily stability, hydrology, liner systems and subaerial deposition. My observance has been that drop boxes generally are three to four pipe diameters, with the outlet two to three box diameters above the sill (floor) of the box. The pipe...
chogben,
It has been a bit since I dropped in to look through some of the queries. Hope this still is timely.
1. What material are you dropping? Ore, aggregate or binder (types, gradation), slurry (percent solids, grind), liquid?
2. What is your drop height and conduit size/shape?
Since you...
Cansand,
General literature searching will turn up lots of stuff, but bear in mind these systems are dependent on ore (and gangue) type, process (grind, reagents, etc.), climate, site (foundation, basin/valley/canyon slopes, etc.), liner requirements, seismic regime, etc.
A recent and fairly...
cap4000,
Do you need substance(intact rock) or fracture cohesion values? Both is usually the right answer.
Failure is so often in the degree, pun intended. What can you live with, what can you operate with? If you're looking at a hospital above or below the cliff, or it's a bridge or...
rrhysevans,
Not sure what your level of investigation and involvement are, so...
Try some of the links at:
www.smenet.org and www.infomine.com. Possibly www.ggsd.com, but I don't recall how extensively they get into the resource/reserve issues.
Many of the mining schools will be up to speed...
DustController,
These two general sources may lead to other, also useful, software:
www.smenet.org
www.bulk-online.com (Try their thread titled Chute Design Handbook)
The Conveyor Equipment Manufacturer's Association may have useful literature/ads as well.
The folks at Conveyor Dynamics...
Here are two views as employee and employer:
-When I was employed with one or another of the majors, the spreadsheets pretty much were always open to others on staff or within the corporation. A few folks always seemed to think there were corporate or professional secrets, but as a rule the...
The SME Mining Engineering Handbook has chapters addressing these. Nice doesn't come to mind, but reasonably comprehensive. You may want to try their website at www.smenet.org. Their links are a good place to start.
The Underground Construction Association of SME pulls together some groups...
This query follows from the closed thread 342-130950 'Wear Resistant Material for Coal Chutes'
One reply may fit very closely to a problem facing me. This is from Polleke(Mechanical), dated 4-Oct-05. Your tonnage rates may be applicable if you could relate the gradation, or even the topsize...
RobPE:
Recognize this reply is from a recovering geologist become engineer...
I think the timeframe will hinge primarily on demographics, which definitely are out of the realm of this forum. But I bet the demographers are simply scaling up the take-off points for the industrial and green...
RCDLtd:
Though not a tunneling expert per se, in thirty years of mine engineering I've never run across anyone using cast iron liners. The most recent references I've noticed are just before the Great War (I did my initial search on 'Cast Iron Tunnel Segments').
On the other hand, lots of...
gump13,
Have you tried some of the safety-focused regulatory groups: MSHA, OSHA, and others? They often have data available for the asking. MSHA is quite open with their 'fatalgram' packages, along with a considerable amount of training packets or packages, often directed at weekly or toolbox...
GeneralAssociate,
Hopefully I understand enough of your query to respond intelligently:
1. 4" perforated PVC may calculate out to be too brittle/fragile to withstand settlement. 8,500 lf of removal line tells me its a fairly large slab (or sets of slabs), so there will be a bit of rockin &...
gone2china,
Yes indeed it must be nice... .
I suggest you run pairs. Check the literature (Schlitt, Rendu, Hartmann(ed.) come to mind).
For an international project, especially if you've got that nugget effect, run with labs on different continents as well as being with different firms. You...
mnthesis,
A quick search on 'finland mine tails' turned up a handy little site called www.tailings.info. Give them a try. One gem may be:
Elander, P. et al., 1998, 'MiMi - Prevention and control of pollution from mining waste products,' ISBN 91-89350-02-2.
The PDF of same is on the tailings...
BT2000,
We were not as fine, had a 65 mesh grind, but our overall tails density was very close to yours when we switched from sub-aqueous to sub-aerial deposition. Nothing fancy on the tails pumping side, just diligent deposition cycling and water management on the tails.
The water reclaim...
Med65:
Probably plenty, though grading is perhaps only one task within more comprehensive sheets used to estimate an entire job or project. How deep do you need to grade, what is the material, and of course length, width, all that... .
What is the extent of your need?
R.S. Means has printed...
Tulum:
Seems like not, with the lack of response to your query.
Nonetheless, the few mining schools in the U.S. have track records of coordinating multi-discipline or mixed-discipline M.S. or M.Eng. programs. Also, there are numerous Electrical Engineering departments which probably would be...
