The Alimak raising method consists of five steps, which together make up a cycle. The five steps are all dependent on the Raise Climber, which. ALIMAK INC. – Alimak Raise Climber. Operating height (m): . Operating width (m): Platform dimensions: m x m. Maximum length. In underground mining, a raise refers to a vertical or inclined excavation that leads from one level, or drift, to another. A raise may also extend to surface. There are four excavation methods for raises: Conventional or open raise; Long- hole or drop raise; Alimak · Raise boring.
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The drifts are commonly sized to accommodate the large scooptrams used for production mucking and are often driven with jumbos. The installed support is also enhanced by the broken ore, which acts as dry fill while in place.
Alimak Raise Climber – Buy Raise Climber Product on
Climmber platform can be any shape and size. Stopes can be as little as 3 feet thick, or even less in ideal circumstances. The down dip helps the toes break to the stope wall. Loading is also done from the platform. The five steps of a cycle are Drilling, which is done from the platform of the Raise Climber. Raise Climber Mining Method Details The raise climber mining method will generally be comprised of the following steps: With less development, faster ore access, better ground control, and faster overall mining, it is easy to see how raise mining will cost less than regular open slimak.
The ckimber rail is built up in sections and includes pipes for supplying air and water to drills and for ventilation of explosive gases following blasting.
ALIMAK Raise Climber
The hydraulic radius is defined as the cross-sectional area of the opening divided by its perimeter.
Less Development The bulk of the waste development required with this method is the ore zone access and the raise climber nests. The Raise Climber eaise with almost surgical precision. The graph eaise is an estimate of the rock stability and includes factors for block size, joint surface condition, rock strength, joint orientation and the effect of gravity. Pressure shaft of m.
China wall climber China power climber China wall climber toys. A true innovation in underground mining, the Alimak method provides the highest safety standards in the industry, while increasing productivity, adding greater flexibility and maneuverability, and reducing overall mining costs. More Selectivity The short drill holes make this method very effective in narrow veins. This is less important in sulphides, where the driller can tell if the bit is in ore by the colour of the cuttings.
These drifts are driven from the shaft or established mining areas to the new ore zone. Once the climber nests are established, ore starts to flow. There is often considerably less waste development with raise mining than with regular open stoping.
Intuitively, geometry favors raise climber mining, in that access is gained to the centre of the stope hangingwall where the ground support does the most good.
Rxise is also quite common that the production holes in the raise mining method are smaller than in regular stoping, which will spread the explosive energy more evenly. Ore passes and ventilation shafts totalling m. This advantage is easily visualized if one imagines the hangingwall as climbdr fractured beam or plate.
It runs on a guide rail anchored to the hanging wall. We are your preferred underground mining professionals.
Raise (mining) – Wikipedia
Drawpoints and Climber Nest: Experience has shown that raises from 75 to cclimber length are the most economical. Pressure shafts totalling m. The raise mining method takes advantage alima this concept because, even though the hangingwall is only supported up its centre, the resulting two unsupported strips are long and narrow and are more likely to be self-supporting.
Raise mining is a “longhole” method of bulk mining tabular narrow vein ore bodies. A ramp is not required and, in many cases, neither is the muck pass and ventilation raise of a regular stoping system.
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. Not exactly what you want?
This improves drill accuracy which, in conjunction with the better ground control, reduces dilution substantially. Blasting is triggered from a well-protected location at the bottom station.
We have a solid reputation when it comes to employing the safest and most productive techniques available. The machine, equipped with rack-and-pinion drive, travels along a guide rail and monorail with pinion rack, which are bolted to the hangingwall by expansion bolts. Drilling, which is done from the platform of the Raise Climber.
Gallery Click on the photos below for a larger view: It is often best to leave ore in the stopes while blasting because of the support it gives. This final step should be done in such a way that concerns about adjacent stope stability and hydraulic heads are climbrr satisfactorily.