Monitoring hoist and ore pass operations will allow operators, inspectors, and maintenance personnel to increase their awareness of potentially dangerous situations. Technical annex 3 the serving and capping of shaft ropes. Hoist, small scale mine, design, cost, rope, winder, electric motor. A small number of these installations can also be found in open. Mine health and safety regulations the commissioner, on the recommendation of the minister, under section 45 of the mine. Speeds are referred to in meters per minute, but many of us still design in feet per minute. Improved ore pass, chute, and gate design will enable ground and muck falls. For abandoned mine shafts, some problems linked to deterioration of the sealing structure at the shaft head, or movement of backfilling material in the shaft have been observed. A typical comprehensive slope and shaft plan should contain the following elements specific to the particular mine and slope and shaft operation. On the surface of an underground mine, a collar is required for a shaft or raise entry, while a portal refers to the entrance for an adit, decline, or ramp.
Each of these components requires extensive design considerations. In this unit, you will learn how a mine is developed for production, how a shaft is sunk. Mine hoisting in deep shafts in the 1st half of 21st century. Pdf v prispevku su uvedene vseobecne informacie o hlbokych sachtach. As a leading mine hoist system supplier, abb has more than 70 years experience, and has delivered more than 600 new mine hoists and undertaken the modernization of hundreds of existing hoisting plants worldwide. In drum type mine hoist wire rope is wound on central. Modern hoists are normally powered using electric motors, historically with direct current drives utilizing ward leonard control machines and later solidstate converters, however modern large hoists use alternating current drives that are variable frequency controlled. Mechanics and machine design, equations and calculators. We supply friction hoists as well as drum hoists of various types. Safety standard for shafts, hoists and conveyances. The technical literature is replete with descriptions of and data on shaft sinking equipment, methods and costs. The most common type of mine hoist used in mining industry is drum type mine hoist.
The rigging division is a fullservice facility operating out of saskatoon and regina with the ability to fabricate custom chain and wire rope slings up to 112. A n1length shaft seal of this type has never before been constructed. Shaft mining, mining techniques, underground mining. Pdf design of a hoisting system for a small scale mine. Abb ab mining technology mining news and views updated.
The design was based off of the materials that were available and practical for this project to save money. Auxiliary hoisting equipment and shaft unifrshings as well as the hoist machinery itself, abb also supplies the auxiliary components of mine hoist ing systems including head sheaves, deflection sheaves and rope tread grooving tools. Mine, necessitated the installation of machinery of extraordinary capacity in order to hoist from still greater depths. The decisions are updated through time, usually annually, as new information becomes available. Almost all underground mines all over the world have hoisting installations. These are mainly consisting of central drum, sheave pulley and cage or skip.
Pdf mine hoisting in deep shafts in the 1st half of 21st century. It is also common to find mine shaft opened even decades after mining activity. Where a friction hoist is installed in a mine shaft, it shall have tapered guides or other such devices above and below the limits of regular travel of the shaft conveyance and counterweight, and they shall be arranged to act as a direct physical brake to. For a production shaft, design starts with determining the cross section or plan view of the shaft. Shaft safety and shaft inspections 91 notice of shaft design changes 92 lining of compartments 93 manways 94 rescue from hoist shaft without manway 95 access to shafts 96 guarding of shaft openings 97 shaft obstructions 98 devices for landing conveyance 99 barrier to water in shaft bottom 910 isolating the shaft station. The hoisting system is essential for the transportation of equipment, personnel, mined ore and thus for the productivity of the mine. It is used in extremely deep shafts as the second drums cable are used to balance the primary load. Underwind and overwind protection system concepts for mine hoist shafts were developed in conjunction with and for the safety in mines research advisory committee simrac. The shaft house, or as it is known locally, the quincy no. In underground mining a hoist or winder is used to raise and lower conveyances within the mine shaft. Mine hoist mines are generally powered by using the electric motor. A number of shaftsinking operations are described in detail in the series of information circulars on mining methods and costs, to some of which reference will be made later.
Technical annex 4 maintenance procedures, deterioration and discard criteria for shaft ropes. Design of a hoisting system for a small scale mine sciencedirect. Shaft signaling, communication and control system for cage and skip winder mine radio systems for vertical and inclined shafts mechanical shaft knocker system retractable guide rail systems decking process system for cages loading and unloading systems for skips. The most visible feature of a mine shaft is the headframe or winding tower, poppet head or pit head which stands above the shaft. Roller chain design guide rules of thumb shigleys mechanical engineering design min teeth per sprocket 12 to 25 max teeth per sprocket 120 max speed reduction 7. The production shaft is designed to the minimum dimensions required to contain and guide the shaft conveyances, as well as provide space to place and access the utility lines. Mankovsky g i development of shaft sinking techniques in the ussr ji. Cargill has worked with premier mine engineering and design experts to ensure the long term health and quality of the lake is not compromised. Shaft mining is a form of underground mining where shafts are pushed vertically from top to bottom to excavate the ores and minerals. For further information regarding shafts please see the article shaft.
Development of a mine hoist and ore pass research facility. Increased productivity, reduced energy consumption and better safety in production are the main challenges faced by mining companies. Part 16 mine shafts and hoists occupational health and. Thanks to the experience and expertise of our people, northern strands is able to deliver added value from the start of your project whether it be feasibility, upgrades or modifications. The most important matter in the deep mine is the vertical transport and the mine hoisting used in the shaft. Compliance guidelines for developing slope and shaft sinking plans for all methods of coal mining we designed this compliance guide for use in developing a comprehensive slope and shaft sinking plan. A design methodology is developed for letermining the parameters of a mine. Affordable and search from millions of royalty free images, photos and vectors.
Part 16 mine shafts and hoists effective may 11, 2006. The hoist is designed to be homogeneously flexible, which means that it is rigid where required and flexible where stress. The following article is regarding the design of underground mine hoisting systems mine hoisting systems are comprised of five major components. Pdf mine hoisting in deep shafts in the 1st half of 21st. The mine hoist system consists of a headgear, crtical shaft and winding house. Horsepower remains the term of capability, but kilowatts loom. Underwind and overwind protection systems with enhanced. The portable gantry hoist will be rated for a 2 ton capacity. The blair multirope hoist is a variation of the doubledrum hoist. Mine hoist systems underground mining solutions abb.
Mine hoisting in deep shafts in the 1 half of 21 century. The safety and reliability of the hoist depends on its design, therefore proper and accurate design of a hoist is essential. Inspection 2 a competent person shall examine devices that may affect the safe operation of a raise climber a before the raise climber is first used at the raise and daily thereafter. This condition was met and resulted in designing the largest steam hoisting engine in the world which is located in the no. Mechanical components mine hoist the mechanical parts of the mine hoist follow the abb design philosophy. Components of various mine hoisting, elevator, and ore pass systems were evaluated. We have a vast inventory of synthetic lifting slings, chain hoists, lever hoists, shackles, trolleys, winches tuggers, and. Fea and 3d tools in the design of the mine hoist and their. Gierke, dulmen design of shaft,shaft sinking symposium in ranchi, coal expansion in india, 2123 november 1983. Design of a hoisting system for a small scale mine.
The subject of shaft sinking has been discussed at some length in an earlier bureau of mines bulletin. Design and analysis of central drum in mine hoist sarang mangalekar1, vaibhav bankar2, pratik. The hoist operated in balance at a speed of 3,200 feet per minute 36 mph, using. Abb has the unique capability to design, supply, install and provide longterm service and support of entire mine hoist mechanical and electrical systems. We also supply the shaft equipment necessary for productive hoisting processes. The friction hoist are mounted on the ground above the mine shaft, or at the top of the headframe. From the economic point of view, the most important factors are. Handbook to best practices for mine shafts protection. The following pages detail the process of selecting an appropriate hoisting system for a mining operation. It consists of various components in which there are winders, ropes and electric motors. The classic threecompartment timber shaft employing one hoist. The site will include a shaft house with shower change areas for crews, a hoist house and a small shop.
Depending on the type of hoist used, the top of the headframe will either house a hoist motor or a sheave wheel with the hoist motor mounted on the ground. The headframe will also contain bins for storing ore being transferred to the processing facility. Blair multirope hoist is preferred to be used in deep mines in south africa. Guidance on the selection, installation, maintenance and. Slope and shaft sinking plans mine safety and health.
Flsmidths hoisting systems group in johannesburg, south africa, is designated as the center of excellence for hoisting technology within the company, but it also has a mine shaft systems operation in ontario, canada, that designs and builds skips, cages, guide rollers, sheaves and an assortment of other hoistrelated equipment. This article was prepared for the queens university mine design wiki page the following article is regarding the design of underground mine hoisting systems mine hoisting systems are comprised of five major components. This report covers the design of a portable gantry hoist with a custom frame design. Endofwind operation of mine hoists is the most hazardous aspect of mine hoisting, carrying the highest risk of loss of life, injuries to workers and loss of production. Hoist, smal l scale mine, design, co st, rope, winder. There are two main types of hoisting systems, drums and friction. When it comes to design of a mine shaft, there are two options. It is best suited for concentrated minerals such as iron, coal, etc.
374 973 421 527 595 430 831 653 340 333 865 579 383 340 1465 86 331 1006 261 1213 892 1503 287 253 1399 703 1197 315 733 1144 182 1480 1331 1247 31