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. Choice of method welcome to the narrowvein mining project. Unesco eolss sample chapters civil engineering vol. Alimak hek mining technology mining news and views. The alimak mining method, which manroc prides itself as the inventor, uses an alimak raise climber to develop a raise in the ore body followed by drilling production holes in the ore body and. Alimak stoping method and supervisors in the underground mining industry. The alimak method raises between levels in a safe and effective manner. The purpose of this bulletin is to provide to the mining industry the view of the. The room and pillar method is often used to mine smaller coal blocks or thin seams, and seam recovery ranges from 35% to 70%, with higher seam recovery rates applicable where retreat mining is combined with room and pillar mining. The alimak method yields high tonnage and low dilution results, while reducing mining costs. A pdf file reader is included to view these eiectronic files on an msdos. Nov 12, 2019 alimak production mining, manroc developments inc. Hemlo general manager andrew baumen says that gold ore is mined at the operation using two quite different mining methods.
The five steps are all dependent on the raise climber, which. Alimak ab is iso 9001 certified iso 9001 is an international quality assurance standard, which provides the parameters for quality assurance systems. The conceptual mine plan confirms that prestea is expected to be a sustainably profitable mine with a combination of the alimak mining method and sublevel open stoping method, and orewaste. Chapter 11 mining technology the federal coal leasing amendments act of 1976 charged ota to assess the feasibility of the use of deep mining technology on leased areas. Classification of underground mining methods mineral production in which all extracting operations are conducted beneath the ground surface is termed underground mining. The alimak raising method consists of five steps, which together make up a cycle. In addition, the productivity of the method is not high during the mining cycle, since the bulk of the. We can assist you with all your underground mining requirements. Technical description alimak scando 650 construction hoists your hoist has. Surface mining can be classified into two groups on the basis of the method of extraction.
The alimak mining method raise climber mining conditions this type of mining is best suited to tabular narrow vein ore bodies with enough dip for gravity ore flow. Alimak mining method pdf raise climbing, widely known as the alimak mining method after the company that introduced it, is a variation on longhole stoping developed. Another advantage is the improvement in grade due to better control of dilution, as. The alimak elevator is the perfect solution for underground, as well as aboveground mining industry applications, such as pelletizing plants, smelters, concentrators, and other ore processing plants. Both methods are well suited for the metasedimentaryvolcanic rock that hosts the gold ores in. To assess this information and to extrapolate to the next twenty years, this approach has been reinforced using published. Raise mining the ralse radius is defined as the crosssectional area of the opening divided by its perimeter. Sep 06, 2019 wherever an elevator for inspection, emergency, or interlevel hoisting is required in mines and underground shafts, the alimak rack and pinion elevator is the. More selectivity the rxise drill holes make this method very effective in narrow veins. A main wire rope hoist, suitable for carrying heavy loads at relatively fast speeds, is the primary means of vertical access for men and materials. Nov 02, 2011 underground mining, underground mining methods.
These drifts are driven from the shaft or established mining areas to the new ore zone. First alimak raise climber in prestea underground nyse. Alimak production mining, mine engineering, alimak raising, lateral development, narrow vein mining. Mar 23, 2020 alimak mining method pdf posted on march 23, 2020 by admin raise climbing, widely known as the alimak mining method after the company that introduced it, is a variation on longhole stoping developed. The two industries ranked together as the primary or basic industries of early civilization. Underground mining methods are usually employed when the depth of the deposit andor the waste to ore ratio stripping ratio are. This expansion will ensure that alimak hek engineers give the best advice to choose the perfect elevator technology for customer applications. Mechanised mine development utilising rock cutting and.
Construction of four deep and large diameter blind shaft for the passage of vertical gas pipelines duration. A long hole stoping system for mining narrow platinum reefs. Therefore, when narrower areas are encountered in these sectors, the mining method generally used to recover these stopes is the longhole retreat method. Hemlo shines canadian mining journalcanadian mining journal.
May 26, 2019 raise climber mining method details the raise climber mining method will generally be comprised of the following steps. The mining method mostly used is a transverse primary and secondary longhole method. Physical work is reduced and it is easier to motivate the workforce. Provide a guide to open source tools that can be used as a reference to do text mining method. The alimak method consists of five steps which together make up a cycle. Mar 27, 2015 construction of four deep and large diameter blind shaft for the passage of vertical gas pipelines duration. Gsc alimak raise climbing equipment begins climbing up the first raise. It is defined as a concentration of minerals that can be exploited and turned into a saleable product to generate a financially acceptable profit under existing economic conditions. 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.
A pdf file reader is included to view these eiectronic files on an ms dos. Both methods are well suited to extracting the relatively flat coalbeds or coal seams typical of. The mining rate includes the mining of both waste and ore. Raise climber mining method details the raise climber mining method will generally be comprised of the following steps. Technical description alimak scando 650 construction. T ypical example s of this type of mining are the larger tonna ge coal mining operations in mpumulanga. Thanks in large part to the efforts by john chadwick of the mining journal, and many other members of the mining community, the hard rock miners handbook has been distributed to over 1 countries worldwide.
This type of mining accounts for less than 5% of total underground production in the u. Underground hardrock mine design and planning bibliotheque et. Home mining equipment specific utilization vertical development raise alimak inc. Sams mechanizes much of the work that in traditional underground mining is done by hand using long tom drills instead of handheld jack leg drills, for example. For an arbitrary length of raise say 1,000 feet the resistance, r of the alimak raise. With the passage of the surface mining control and reclamation act of 1977 congressional interest in the study of deep underground mining technology shifted. Underground mining methods and applications production headframe hans hamrin 1. The fga series is an extractive sampling multigas analyser, which provides accurate measurement of carbon monoxide conitric oxide noand oxygen o2 in flue gases and calculates carbon dioxide co2 and nitrogen oxide noxallowing for better process control.
Jul, 2019 alimak production mining, mine engineering, alimak raising, lateral development, narrow vein mining. Apr 17, 2019 alimak mining method pdf raise climbing, widely known as the alimak mining method after the company that introduced it, is a variation on longhole stoping developed. Usually, the development is done two years in advance of the production schedule. Alimak heks inhouse engineering department has vast experience based on the installation of over 22,000 rack and pinion elevator solutions. This should also contribute to a more stable hangingwall. Mar 27, 2015 this feature is not available right now.
The raise climber serves both as working platform and as a means of transport up to the work face. Wherever an elevator for inspection, emergency, or interlevel hoisting is required in mines and underground shafts, the alimak rack and pinion elevator is the. In quebec mines, alimak raising was used in 63% of driven ore passes while only 3% were raise. Cage raising involves a higher level of risk than the alimak raise climber method. Alimak stoping this method extracts the ore in horizontal rather than vertical slices. Included 1 raise climber with new spare g5 brake and motor. Mining method, surface mining, open pit mining, open cast mining, placer mining, solution mining. Okubo encyclopedia of life support systems eolss is essentially surfacebased.
Alimak 32 alimak raising provides the safest of all entry methods involving the least risk to the. Classification of raising techniques raising techniques blind raising open raising compartm ent method alimak raise climber two levels. An alimak stope is developed firstly by mining an alimak raise up the hangingwall contact of the orebody. Chapter 11 mining technology the federal coal leasing amendments act of 1976 charged ota to assess the feasibility of the use of deepmining technology on leased areas. Alimak raise climber pdf the alimak raising method consists of five steps, which together make up a cycle. Mining industry response to the book continues to be incredible. The standard states how the organization of a company, working methods, etc.
Cablebolts or rockbolts are installed in the hangingwall of the raise, to provide reinforcement for the mid span of the future stope hangingwall. Jun 12, 2019 alimak mining method pdf raise climbing, widely known as the alimak mining method after the company that introduced it, is a variation on longhole stoping developed. Golden star, manroc devt agree on alimak mining method. Alimak 2032 capacity electrical data payload capacity 2000kg power supply 415v50hz erection load 2000kg power supply fuses 80 ampere speed 40mmin 40mmin rated power cont. Okubo encyclopedia of life support systems eolss surface mining methods and equipment j. Both methods are well suited for the metasedimentaryvolcanic rock that hosts the gold ores in the marathon district where hemlo is located. This project was completed mainly through the use of questionnaire sent to subcontractors in almost each country of the eu. Technical description alimak scando 650 construction hoists. It is a very lowcost, highproductivity method of mining. Raise climbing, widely known as the alimak mining method after the company that introduced it, is a variation on longhole stoping developed. A long hole stoping system for mining narrow platinum reefs advantages of this mining method it allows for a low safety and health risk as well as improved working environment.
Alimak raising makes use of a rack and pinion type system for the transportation of people into a pass with normal drill and blast methods. Aug 21, 2019 the alimak mining method raise climber mining conditions this type of mining is best suited to tabular narrow vein ore bodies with enough dip for gravity ore flow. In underground mining, a raise refers to a vertical or inclined excavation that leads from one level, or drift, to another. We apply the text processing language perl and the statistical language r to two text databases, an accident description database and a survey database.
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