S underground coal mine ventilation air methane exhaust characterization. For example, dieselpowered equipment is important in many mining systems, and fresh air is required both for combustion and to dilute exhaust contaminants. To this end, a number of new advances have been made to benefit the engineer in achieving this goal. Methods to improve efficiency of mine ventilation systems. This requirement is integrated into the mining law of those nations who possess that type of legislation. This project deals with the pressure and air quantity survey of. Ventilation safety training pdf files mine safety and.
This is the english version of the text book and is the. To maintain adequate ventilation through the life of a mine, careful advance ventilation planning is essential. Existing underground mines in ontario are becoming deeper and incurring higher extraction ratios. From the supply point of view of oxygen requirements for human consumption and internal combustion engines diesel, there are specific rules to be observed which are adopted in. Pdf modelling of okaba underground coal mine ventilation. As the door panels move in opposite directions, force on one door aids the other in opening or closing. Efficient ventilation of underground mines consists in having such complete control of air currents that there is always supplied at places where men work sufficient moving air to allow working at maximum capacity without injury to health. At the beginning of reverse ventilation, the ventilator stopped working, during a short pause, the mine ventilation relies on natural ventilation pressure, the velocity is low and the volume is. This paper describes the implementation of the three methods. The manager of an underground mine must ensure that a plan of the ventilation system at the mine is kept at the mine that shows the direction, course and volume of air currents, and the position of all air doors, stoppings, fans, regulators and ventilating devices, in the mine.
Guidance about underground air quality and ventilation. Mine fans and tunnel ventilation radial and axial fans. The design for the pre ventilation system of the okaba coal deposit required 145 m 3 s of air with a main fan pressure of 2. Explosion evaluation of mine ventilation stoppings permanent stoppings are utilized to control and direct the ventilation air flow through underground coal mines to dilute and render harmless methane, entrained coal dust, and other contaminants at the working face and other areas of the mine. Abc ventilation systems is a verticallyintegrated manufacturer of flexible and semirigid polymer products and air distribution systems for mine and tunnel ventilation. You may need a pdf reader to view some of the files on this page. Methods to improve eficiency of mine ventilation systems. Cmm emissions from underground coal mines in the united states from 20112015.
Gold is a hot commodity, but in summer so are the mines. The prevention of fires is a priority for underground mines as they can lead to entrapment, smoke inhalation, serious or fatal burns, asphyxiation and other serious consequences such as explosions. Ventilation is an important consideration in underground mining. Mcpherson 3 now, while the temperature of the mass of rock surrounding the shaft may change relatively slowly with time, the air temperature at the shaft entrance can change from hour to hour and, especially, between day and night. In this chapter, we shall define fan pressures and examine some of the basic theory of fan design, the results of combining fans in series and parallel configurations, the theory of fan testing and booster fan installations. Underground mine automation underground mining solutions abb. Zacon balanced ventilation door firstly deals with the static pressures by canceling its effects on the two door panels. This paper describes a case study for the ventilation planning at tki companys omerler b mine in tuncbilek coal basin which is located in kutahya region in central turkey the omerler b mine will. These gases come from a variety of sources and must be carefully monitored to prevent mine. Introduction to mine ventilating principles and practices.
A mine ventilation system clears contaminants out of an underground mine, providing fresh air to workers and equipment. Underground mine design, planning, and engineering srk. All underground mines should have a documented underground fire risk assessment that is. A wide variety of underground mine ventilation options are available to you, such as hvac systems. Ventilation air methane vam utilization technologies pdf 6 pp, 455 k, july 2019 u. While the practical techniques of topics such as ventilation surveys or the use of computer software are included, this text is not intended specifically to be a ventilation officers handbook. Mine ventilation air is a costly commodity, especially by the time it has been heated or cooled and moved to the bottom of the shaft and through the mine airways. Underground mining takes place in an environment not naturally suited to the presence of humans. Mcpherson excerpts of chapter from subsurface ventilation and environmental engineering, 1993 observations of the movements of air in underground passages have a long and fascinating history. Diesel aerosols and gases in underground mines 2 involve key departments of mining companies. During the lifeof mine the demands on the ventcooling systems vary and generally grow with age. Underground mining methods are usually employed when the depth of the deposit andor the waste to ore ratio stripping ratio are.
Mines, tunnels and quarries require fans and blowers for ventilation or exhaust gas systems. Underground mine automation underground mining solutions. In mine planning it is important to recognise that. Accordingly, the theoretical underpinnings of the subject are dealt with in some detail. Poor air quality is one of the key reasons why underground environments can be dangerous for mine personnel. In mining ventilation systems axial fans may be applied to exhaust or in discharge configuration and proper technology may be used to satisfy required specifications. Leave a reply how ventilation on demand vod can reduce mine operating costs cancel reply. When one and onehalf percent or more methane is present in a working place or an intake air course, including an air course in which a belt conveyor is located or an area where mining equipment is being installed or removed, only work necessary. How ventilation on demand vod can reduce mine operating. Our products deliver energy savings and productivity improvements while meeting the highest health and safety standards. Mishra, oxford university press, 1994 mine ventilation gb mishra pdf download. Mine ventilation is a crucial factor for the sake of underground. Control of underground mine ventilation system 187. The redeemer gold mine is a sublevel caving gold operation located in western australia.
Splitmine ventilation is a minewide ventilation method designed to deliver the bulk of the main mine fans airflow to the last open crosscuts near. This will be a very challenging mine to ventilate, but this work has demonstrated that it. High pressure axial fans blow air into ducts, tunnels and underground passages. You can select the book based on the preferred themes that you such as. Some approaches to improve the ventilation system in underground. To ensure adequate ventilation of a mine, provision is made for suitable paths airways or to gain insights of mine air, mine climate and mine ventilation. The state of the mine ventilation needs to be monitored to ensure that the quantity of air is maintained consistently and that emitted gas levels are maintained below safe threshold levels. Our innovative and rigorous methodology maximizes your projects economic benefits. The underground mining commenced in 1989 and followed a slightly subvertical ore body to the depth of approximately download pdf 1. Under the searing australian heat, it gets hot and humid down in the tunnels of cobars gold mine, and working underground in these overheated conditions is a risk to life and limb. Classification of underground mining methods mineral production in which all extracting operations are conducted beneath the ground surface is termed underground mining. As a short term measure, fireresistant line brattices may be tacked to roof, sides, and floor in underground coal mines to provide. This is the english version of the text book and is the only. Underground coal mine ventilation air methane exhaust.
Underground mine automation illustration english pdf drawing ventilation optimizer english pdf drawing abb smartventilation english pdf brochure mining and mineral processing industries solutions from mine to market english pdf brochure. Modiications that result in surplus mine ventilation air could bring inancial and environmental beneits. Mine ventilation is defined as a combined system of shafting, ducting and a welldesigned combination of fans, mine ventilation is a basic need of mining industries, it is required for providing adequate oxygen for the workforce and to dilute and exhaust dangerous gasses in the underground mine, it is also required to take a smoke of machine equipment out because many. The potential extent of these costs in relation to the other aspects. The air current at working faces shall under all conditions have a sufficient quantity to dilute, render harmless, and carry away flammable, explosive, noxious, and harmful gasses, dusts, smoke, and fumes, this quantity shall be specified in the approved ventilation plan. Definitions air course a pathway through which air travels to an area. Establishing total airflow requirements for underground. Mine ventilation monitoring systems maestro digital mine. Underground mine ventilation provides a flow of air to the underground workings of a mine of sufficient volume to dilute and remove dust and noxious gases typically no x, so 2, methane, co 2 and co and to regulate temperature. The atmosphere underground is limited and confined, and is thus readily reduced to a sub. Ventilation con1 a ventilation duct in an underground mine sumes a significant amount of energy, typically 100 gwh year which can be as a much as 50 percent of the total energy consumption for underground activities. Underground mining risk assessment results of the june th 2014 workshop. The diploma is structured to meet the needs of both the metalliferous and coal mining sectors. Top 10 reasons to consider real time mine air quality.
The corresponding patterns of airflow through those openings are also highly variable. Traditionally, ventilation requirements for modern, mechanized underground mines have been based upon the power of the diesel equipment fleet, with a multiplier determined from empirical data collected and compiled over a long period of time or required by regulations being applied in order to determine the total airflow volume requirements of. Minerals and mining health, safety and technical regulations, 2012 l. The importance of the ventilating system in coal mining is recognized. Jun 24, 2016 rules for calculation of air requirements in underground mines the main parameter of the mine ventilation system is the flow of fresh air to be blown in the workplace. Pdf ventilation planning and design of the omerler b mine.
Mine schedule optimisation with ventilation constraints. The detailed requirements are not always evident in the early. Mine ventilation an overview page 1 min218 reading material a brief history of mine ventilation by m. Underground coal mine ventilation air methane exhaust characterization published was originally by the united states environmental protection agency s coalbed methane outreach program cmop in 2010. Future underground mining, particularly in rsa gold and platinum mining, will inevitably progress deeper and will have extremely high ventcooling costs.
When examining mine ventilation plans and maps check to ensure that the elements required by 30 cfr 57. We have extensive global underground mine engineering and operating experience across most major commodities and mining methods. Lifeofmine ventilation and refrigeration planning for. Engineered for the harsh underground mine environment. Maestro digital mine serves the underground mine ventilation and automation sector. Establishing total airflow requirements for underground metal. This report is an update of epas 2010 publication, u. Agnew gold mine expansion mine ventilation evaluation using ventsim e. Important basics of mine ventilation and cooling planning dr. Mine ventilation and auxiliary ventilation systems. Most underground coal mines in india employ an exhaust i. The largest component of the operating cost for mine ventilation is electricity to power the ventilation fans, which may account for greater than 50% of the entire mine electrical budget. Underground mine ventilation is expensive and energy costs continue to increase globally.
Ventilation of any underground mine is a process of identifying the potential hazards from a mining system and implementing a ventilation system that ensures the health and safety of the mine worker. Illumination of dredges underground mine design and mine entries 127. Niosh has identified and further developed three alternative ventilation methods for use in largeopening underground mines. Establishing total airflow requirements for undergr ound metalnonmetal mines with tier iv diesel equipment abstract traditionally, airflow requirements for diesel equipment operating in underground environments such as mines and tunnels were determined by multiplying the vehicle power by a ventilation rate that was. Monitoring is done both manually and by the use of continuously operating monitors that may indicate remotely, often to the surface. Some approaches to improve the ventilation system in underground potash mines i. The main objective of an underground mine ventilation system is clear. Current developments and challenges of underground mine. Mining in the future english pdf article abb abilitytm ventilation optimizer english mp4 movie underground mine automation illustration english pdf drawing ventilation optimizer english pdf drawing abb smartventilation english pdf brochure mining and mineral processing industries solutions from mine to market.
We are a trusted world leader in mine and tunnel ventilation because our quality makes a difference. T he design of reliable mine ventilation systems is key to the safe and economical operation of underground mines. Introduction practically every underground opening is unique in its geometry, extent, geological surroundings, environmental pollutants and reasons for its formation natural or manmade. In addition to the obvious requirement of providing fresh air for those working underground, there are other demands. The challenge keep things cool and safe in a gold mine during the summer.