Basic ventilation system underground where d is a ventilation door or airlock. As such it is as much concerned with the planning process and methodology as it is with some of the basic technical aspects. Coal mine ventilation ventilating the face area purpose of ventilation dilute, render harmless and carry off accumulations of dangerous gasses and dust from the mines. The mine ventilation society of australia mvsa was founded in 2012 by australian mine ventilation practitioners, who share a common passion, dedication, and commitment to ensure a safe and healthy work environment for fellow underground mine workers.
Split mine ventilation is a mine wide ventilation method designed to deliver the bulk of the main mine fans airflow to the last open crosscuts near. Additional resistances have to be added to allow for shock losses at changes of direction, junctions, etc. Basic mine ventilation mechanical fan ventilation architecture. Methods to improve efficiency of mine ventilation systems. Use vnetpc software to simulate a complex mine ventilation system. Useful for gate, dgms first class exam, dgms second class exam, college exams. An airflow direction of any diagonal branch in ventilation networks is a function of the resistance of each branch, but its own resistance is not a factor. Ventilation in underground mines and tunnels pdf 1. In addition to the obvious requirement of providing fresh air for those working underground, there are other demands. Mine ventilation services mvs, a new business unit of srk consulting u. Using the measured, calculated or assumed values, a ventilation model for the mine can be builtup as the combined resistance of roadways connected together in series or parallel, and the overall mine resistance can be calculated. 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. Principals control strategies to mining ventilation 1h30.
Cdc mining introduction to mine ventilating principles. 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. Ventilation planning introduction underground coal. Download the purpose of the 10th us north american mine ventilation symposium in anchorage 2004 was to bring together practitioners involved in the planning and operation of underground ventilation systems, to provide a forum for debate and exchange of ideas, and to share information on the advances which have been made and consider problems which remain in the broad field of mine ventilation. This video contains snippets of a complete elearning course on mine ventilation systems developed by octave simulation services private limited. It has the symbol and is used in the square law for pressure drop, where in english units. Concepts and types of ventilation natural ventilation. Chemistry and technology of mixed paints 8vo, 3 oo materials for permanent painting i2mo, 2 oo todd, j. Chapter 18 ventilation mine safety and health administration. 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. Course and has a basic understanding of how and why to monitor a ventilation system.
Pdf within the mining industry, a safe and economical mine. Inspectors should observe and document the general condition and operation of ventilation systems when conducting an inspection. 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. Basic mine ventilation ventilation architecture coal. The first activity in the mine ventilation planning and design process is the establishment of a basic or initial ventilation network and an appropriate database containing all necessary data.
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. R is a mine regulator and 1, 2, 3 are working places with a surface exhaust fan. This schematic shows a simple smallscale mine ventilation network. Determine appropriate approaches to medication delivery related to the mechanical ventilator. Select and operate mine fans determine natural ventilation in a mine know the features of us coal mine ventilation system and methods to design homework 35 % ethics report 5% project report 15 %. The importance of the ventilating system in coal mining is recognized universally, and standards for ventilating requirements have been established by state mineinspection and the federal coal mine safety act.
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. It is difficult to determine the airflow of diagonal branches. Mine ventilation an overview page 2 revolution, the working of seams rich in methane gas, inadequate ventilation, furnaces located in methaneladen return air and the open flames of candles. A properly designed mine ventilation system can remove contaminants from the atmosphere or dilute the contaminants in the atmosphere to safe levels. The overall goals of ventilation on demand figure 2 and the involved optimisation of the ventilation network are increasing production and saving energy by effectively controlling the flow of air within regulatory demands production can be increased, e. The attempt is to reduce the complex and difficult ventilating formulas to simple, practical fundamentals. The relationship between ventilation pressure and quantity follows a simple square law, pressure is proportional to quantity squared, or for an airway pressure drop equals a constant, known as the resistance, times quantity squared. In present day mining, ventilation systems designed and operated to maintain efficient operations will normally enable a high standard of occupational health and safety to be achieved. 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.
In general a ventilation system seeks to direct air in the mine through an entry shaft or tunnel called the intake side and direct it back to the surface via a different path called the return side. Jul 16, 2017 a ppt that covers the essential concepts of fluid flow basics that are relevant to mine ventilation 801k. But the airflow direction of diagonal branches in some complex networks can be discriminated by applying theproperties 38 to vshaped, tshaped, yshaped, xshaped and double. Some basic characteristics of mine ventilation networks. Mining operations in the mieden rid mine are earned out in specific ventilation climatic conditions. Ventilation economics ventilation survey equipment, techniques and strategy barometric pressure survey data reduction 1 p. Ventilation and airconditioning during operation in deep mines a foremost engineering task v bozhiiov, rudmetalproject jsco. Mining ventilation automation principles and design mathematical modeling of the mine.
Ventilation moves outdoor air into a building or a room, and distributes the air within the building or room. 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. Ventilation basic mining processterminology introduction. The ventilation technical guide is designed to assist in both the management and execution of. Ventilation in underground mines and tunnels worksafe. Mine ventilation society of south africa, 1958 mine ventilation. In recent years the advances in diesel engine technologies, ventilation modeling software, and ventilation management capacities have redefined methods used to. Ventilation survey data reduction and correlation introduction to ventilation simulation programs. Ms excel to formulate and solve a ventilation network problem. Describe the basic settings of mechanical ventilation and the impact on development of patient care plans.
A ppt that covers the essential concepts of fluid flow basics that are relevant to mine ventilation 801k. Subsurface ventilation engineering textbook srk consulting. This approved code of practice outlines the ventilation needed for different types of mining and tunnelling operations. Page 39 machinery 8vo, 3 oo titherley, aw laboratory course of organic chemistry 8vo, 2 oo toch, m.
Ppt coal mine ventilation powerpoint presentation free. The relationships between ventilation and other subsurface systems. As such it is as much concerned with the planning process and. Pdf ventilation is a basic part of all underground mine operations.
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. The practice of ventilation is continually evolving with new technological advances developed in the mining industry. The basic components of any type of mine ventilation system involve a combination of pipes, ducts, fans, cooling and heating systems, and occasionally air cleaning equipment 1. Introduction mechanical ventilation is a basic therapeutic and supportive intervention used in the critically ill. Oct 17, 2017 the basic components of any type of mine ventilation system involve a combination of pipes, ducts, fans, cooling and heating systems, and occasionally air cleaning equipment 1. Split mine ventilation of the three ventilation methods, split mine ventilation is the simplest in terms of layout and design, as the mine is split into separate intake and exhaust sides. Two basic types of ventilation systems include homotropal and antitropial systems. Alternating current engineering 8vo, boards o 75 townsend, j. Ventilation is an important consideration in underground mining. Introduction face ventilation stoppings check curtains air measurements principals of airflow respirable dust control use of scrubbers actions for excessive methane rock dusting permissibility 2 the principal mechanism for taking medium air velocity measurement is the anemometer a high speed anemometer is most often used for high velocity air. To consider the basic principles of ventilation in underground mine lets consider some room and pillar workings. A free powerpoint ppt presentation displayed as a flash slide show on id. Rich visual 3d mine ventilation simulation software. The general purpose of ventilation in buildings is to provide healthy air for breathing by both diluting the pollutants originating in the building and removing the pollutants from it.
Pdf mine ventilation notes for beginners download ebook. Scribd is the worlds largest social reading and publishing site. The source of these gases are equipment that runs on diesel engines, blasting with explosives, and the orebody itself. Realtime animated 3d graphics represent actual airway dimensions and shapes with animated airflows. Modiications that result in surplus mine ventilation air could bring inancial and environmental beneits. For example, dieselpowered equipment is important in many mining systems, and fresh air is required both for combustion and to dilute exhaust contaminants. Monitoring is done both manually and by the use of continuously operating monitors that may indicate remotely, often to the surface. Ventilation of underground mine linkedin slideshare. Why we ventilate mines and what are the basic relationships 10 a. This bulletin is written to explain in layman language the basic laws and fundamentals of mine airflow and their application to the solution of common ventilating problems. Ventilation safety training pdf files mine safety and. 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. Concepts and types of ventilation natural ventilation for.
Amin kamyar, saiied mostafa aminossadati, christopher leonardi and agus sasmito, current developments and challenges of underground mine ventilation and cooling methods, in naj aziz and bob kininmonth eds. Ventcooling planning includes many related sciences such as. Pdf mine ventilation notes for beginners download ebook for. Modern ventilation, ventilation on demand, diesel, airflow evaluation, monitoring systems. Monitoring is done both manually and by the use of continuously operating. Correct design, implementation and maintenance of mine ventilation is therefore of fundamental importance. Basic mine ventilation 55slide presentation covering the subject of basic mine ventilation. Mine ventilation society of south africa annual conference. 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. Ventsim design creates an accurate simulation of the ventilation environment. Apr 04, 20 this video contains snippets of a complete elearning course on mine ventilation systems developed by octave simulation services private limited. The main objective of underground mine ventilation is to provide sufficient.
Basic ventilation system underground where d is a ventilation door or airlock, r is a mine regulator and 1, 2, 3 are working places with a surface exhaust fan. There are many graphic descriptions of methane and coal dust explosions, the suffering of mining communities, the heroism of rescue at. This is the english version of the text book and is the only. Ppt coal mine ventilation powerpoint presentation free to. Mvs has been providing engineering services and computer software to the mining and tunneling industries since 1983. Pdf ventilation requirements for todays mechanized. Accurately model, design, evaluate, and optimize underground mine ventilation systems. Guidance about underground air quality and ventilation. From euler equations to lum ed models fans, rooms and. Introduction face ventilation stoppings check curtains air measurements principals of airflow respirable dust control use of scrubbers actions for excessive methane rock dusting permissibility 2 the principal mechanism for taking medium air velocity measurement is the anemometer.
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