ALIMAK MINING PDF
The main wire rope hoist is suitable for carrying heavy loads at relatively fast speeds and is the primary means of vertical access for men and materials in an. Wherever an elevator for inspection, emergency, or interlevel hoisting is required in mines and underground shafts, the Alimak rack and pinion elevator is the. Raise climbing, widely known as the Alimak mining method after the company that introduced it, is a variation on longhole stoping developed.
|Published (Last):||5 September 2006|
|PDF File Size:||9.89 Mb|
|ePub File Size:||19.93 Mb|
|Price:||Free* [*Free Regsitration Required]|
Greg Dipple of UBC has discovered that certain mine tailings can be used for carbon sequestration, and the implications could be enormous.
For more information on our Alimak production mining services, please contact us. The company has committed to expanding the method beyond its current, relatively small lens. Faster Overall Extraction With better ground control, larger stopes can be taken. Less Development The bulk of the waste development required with this method is the ore zone access and the raise climber nests. The nest will be alimzk out of the drawpoint backs if development is from the hangingwall side.
Alimak Production Mining, mine engineering, Alimak Raising, Lateral Development, Narrow Vein Mining
One of the disadvantages to mining long, straight raises is that it becomes difficult to follow high-grade ore. Tailings to the rescue Greg Dipple of UBC has discovered that certain mine tailings can be used for carbon sequestration, and the implications could be enormous. Mlning packed and ready to go Eavan Moore. The graph is divided into areas that have moning delineated by observed stope behaviour.
The Seabee mine had to adapt to this new cycle.
A World Leader
Our miinng stopes are approximately 5, to 10, tonnes, whereas the Alimak stopes are anywhere from 20, to 30, tonnes. Truck dump back slash if required. Cable bolting provides better ground support from its position in the central hangingwall of the stope, and the broken ore adds support by putting outward pressure on raise walls.
Most of the rest of the development is in ore see centerfold.
Experience has shown that raises from 75 to metres length are the most economical. Experience has shown that the stopes mined with a raise climber tend to be more stable than regular longhole open stopes.
In theory, and if properly cabled, the foliated hangingwall could be approximated as a laminate beam by the Voussoir approach, as described by Hutchinson and Diederichs Specialized Services Professional Mine Engineering Manroc Developments is a full service mine engineering company employing a highly qualified team of mining engineers and associates with extensive experience in underground mining.
The down dip helps the toes break to the stope wall.
That was the main attraction for Claude Resources, which introduced the Alimak method in its L62 zone at Seabee in late Ailmak crushing plants, where the operator has to control feeders, bins, conveyors, etc. The drifts are commonly sized to accommodate the large scooptrams used for production mucking and are often driven with jumbos.
Better Ground Control Cables can be installed right up the middle of the hangingwall, where they will do the most good. Mining The Alimak elevator is the perfect solution for underground as well as aboveground mining industry applications, such as pelletising plants, smelters, concentrators, and other ore processing plants.
Successful users of the technique have found that it accelerates their path to production by centring development work within the ore body. Switching to a new drill, they drive cable bolts up the centre of the raise, grout them in place and drill production holes.
They blast the first few metres of the raise and then install a climber running on a curved rail from the mijing into the raise. The change in geometry and improvement in ground support allows stope heights in the order of 75 to metres, eliminating many sub-levels and their associated development.
These drifts are also driven from the shaft or existing development but, unless there is another lift, they often need only be large enough for the movement of supplies. The sub-horizontal production drill hole direction allows the use of the undercut as a slot and because of the increased stope height, there will be significantly fewer of these than there would be slots required for regular open stoping in the same area. Prospects good for long term copper price, despite current volatility Lack of major copper discoveries mean supply will likely fall short of demand in next decade.
The elevator can be installed easily, and the cost is moderate because no machine room is needed. We are pleased to provide lateral mine development as a part of our comprehensive range of almak mining services. With better ground control, larger stopes can be taken. The advantages of this mining method are: Manroc Developments is a full service mine engineering company employing a highly qualified aljmak of mining engineers and associates with extensive experience in underground mining.
Faster Access to Undeveloped Ore Once the climber nests are established, ore starts to flow.
Xlimak graph abscissa see above figure is the hydraulic radius of the stope. T hree-quarters of the way intoit became clear that this was a very good year for Claude Resources.