ventilation in underground mines ppt

(6) Mine ventilation

Winter Alert - Basic Mine Ventilation Provides sound safety practices and compliance help pertaining to underground mine ventilation. 125 slides: MSHA 2203 Ventilation As mine rescue team members, you should be familiar with mine ventilation, in particular the ventilation of the mine …

Tunnel ventilation - .GLOBAL

May 16, 2015· Natural Ventilation Pressure (NVP) Agricola (1556) noted "The outer air flows spontaneously into the caverns of the earth, and whe... MINING BITS(PART 1) There are 3 parts in this MINING BITS BLOG.

Minerals And Mining (Health, Safety and Technical ...

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. – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 45684b-YThlY

Underground mine ventilation - Wikipedia

• Electrical refrigeration units put in the underground in a mine level, in a certain chamber. • Depends also on the theory of air circulation. • Advantages: 1) Gives good ventilation for deep mines 2) Circulate air all-round-the clock • Disadvantage: 1) So expensive 2) Units are huge and should be disintegrated before going down

MINE VENTILATION BEST PRACTICES AND REGULATIONS …

The health hazards of breathing respirable coal mine dust. The purpose of effective dust sampling and dust controls. The mandatory health standards that apply to their mine. The health provisions of the mine safety and health act. The dust control portion of the approved ventilation plan. Emphasize the importance of participating in the NIOSH X ...

Chapter 8. Mine Ventilation Thermodynamics

Hence, mechanical ventilation becomes the only solution. Cost of Sufficient ventilation throughout mine can be as high as up to 50% of capital as well operating cost of whole mine (Brake, 2006). ...

(6) Mine ventilation

May 16, 2015· Natural Ventilation Pressure (NVP) Agricola (1556) noted "The outer air flows spontaneously into the caverns of the earth, and whe... MINING BITS(PART 1) There are 3 parts in this MINING BITS BLOG.

Underground mine ventilation - Wikipedia

Diesel Aerosols and Gases in Underground Mines (2) • Involve key departments of mining companies: health and safety, engine/vehicle/exhaust aftertreatment maintenance, mine ventilation, and production, + those responsible for acquiring vehicles, engines, exhaust aftertreatment systems, fuel, …

Ventilation - Safety Training PDF Files - Mine Safety and ...

Part V- Underground Mining Prof. Dr. H.Z. Harraz Presentation Mining Methods 1. ... carving adits, tunnels, and levels, and establishing ventilation and transportation.[2]

Underground Mining Methods and Equipment

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 source of these gases are equipment that runs on diesel engines, blasting with explosives, and the orebody itself. The largest component of the operating cost for ...

Application of Tunnel Boring Machines in Underground Mine ...

Jun 29, 2013· We came across a ventilation fan still turning from natural air flow inside of an abandoned underground mine.

Ventilation fan turns in underground mine - YouTube

Oct 15, 2016· The boundary ventilation system where the air flow unidirectional from the intake to the return through the working is by far the most efficient system necessitating the least use of ventilation control devices and thus resulting in a high volumetric efficiency of ventilation(70-80%). It is commonly adopted in metal mines working steep lodes in ...

PowerPoint Presentation

In this chapter, thermodynamic analyses are carried out on a downcast shaft, underground airways and an upcast shaft. The three are then combined to produce a thermodynamic cycle for a complete mine, first, with natural ventilation only, then for the more usual situation of a combination of fans and natural ventilation.

UNDERGROUND VENTILATION (METALLIFERROUS MINES) …

INTRODUCTION. The intended purpose of this Website . is to provide a reference document for all aspects of underground coal mining in Australia (though there may be references to overseas practices where these could be of interest).. The aim is to be of use to all levels of expertise from people with no, or at least a very limited knowledge of mining through to practicing mining engineers ...

WORLD OF MINING ENGINEERS: NATURAL VENTILATION …

1. Underground Mining Methods 1.1. Classification of Underground Mining Methods Mineral production in which all extracting operations are conducted beneath the ground surface is termed underground mining. Underground mining methods are usually employed when the depth of the deposit and/or the waste to ore ratio (stripping ratio) are

Chapter 8. Mine Ventilation Thermodynamics

INTRODUCTION. The intended purpose of this Website . is to provide a reference document for all aspects of underground coal mining in Australia (though there may be references to overseas practices where these could be of interest).. The aim is to be of use to all levels of expertise from people with no, or at least a very limited knowledge of mining through to practicing mining engineers ...

UNDERGROUND MINE VENTILATION SURVEY

Chapter 1: Mine Ventilation – An Overview Page 1 Min-218 Reading Material A BRIEF HISTORY OF MINE VENTILATION by M.J. 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.

Ventilation of underground mine - SlideShare

9.28 Ventilation plans for underground mines. 9.29 Monitoring of toxic, asphyxiant and explosive gases. Part 10 — Specific requirements for underground mines. 10.12 Workers to be withdrawn if danger exists. 10.29 Sulphide dust ignitions. 10.51 Specifications and testing of diesel units

CH4 and CO2 monitoring in the air of underground coal ...

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 source of these gases are equipment that runs on diesel engines, blasting with explosives, and the orebody itself. The largest component of the operating cost for ...

PPT – Basic Mine Ventilation PowerPoint presentation ...

• Electrical refrigeration units put in the underground in a mine level, in a certain chamber. • Depends also on the theory of air circulation. • Advantages: 1) Gives good ventilation for deep mines 2) Circulate air all-round-the clock • Disadvantage: 1) So expensive 2) Units are huge and should be disintegrated before going down

CHAPTER 18. REFRIGERATION PLANT AND MINE AIR …

Harpalani (2009) studied two underground mines in India and reported CH 4 levels at the ventilation outlet of 0.02 to 0.2% and emissions between 740 and 6,342 t CH 4 year-1. Lloyd and Cook (2005) analyzed CH 4 emissions in six underground coal mines in South Africa and found lower and less varied CH 4 levels (0.002 to 0.04%) than those recorded ...

Subsurface Ventilation Engineering Book | SRK Consulting

Sep 30, 2015· Mining ventilation codes were put in place to provide minimum levels of acceptable air-quality underground. For instance, one example would be for mobile equipment. In that area, a common design parameter is to allow 100 CFM of fresh air per horsepower of operating diesel equipment.

Chapter 1: Mine Ventilation – An Overview

This complete mine emergency training program developed by the Division of Mines (DM) was designed to increase the technical knowledge and safety awareness of mining personnel and to provide up-to-date mine emergency training materials and a 90-Day Mine - DM, MSHA, company, and mine rescue officials will need this information to plan rescue efforts.

Topic 9: Mining Methods Part V- Underground Mining

Underground mines of all sizes require a formal, planned ventilation system to deliver fresh air to all working places. Mine ventilation is the process of supplying sufficient fresh air to the U/G workings to achieve these purposes, ensuring proper distribution & use of the air, and controlling the return to surface of contaminated air.

Mining Ventilation Control

ACOP: Ventilation in underground mines and tunnels (PDF 1.2 MB) While this guidance has not been updated to reflect current work health and safety legislation (the Health and Safety at Work Act 2015 and regulations), it may still contain relevant information and practices to …

(6) Mine ventilation

gained further recognition in the 1930's including their utilization in the gold mines of South Africa and in the Kolar Goldfields of India. However, it was the 1960's that saw the start of a real escalation of installed mine cooling capacity. Large centralized refrigeration plant, located underground, became popular in the South African gold ...

PowerPoint Presentation

In this chapter, thermodynamic analyses are carried out on a downcast shaft, underground airways and an upcast shaft. The three are then combined to produce a thermodynamic cycle for a complete mine, first, with natural ventilation only, then for the more usual situation of a combination of fans and natural ventilation.

WORLD OF MINING ENGINEERS: NATURAL VENTILATION …

U.S. REGULATIONS MINE SAFETY HEALTH ADMINISTRATION (MSHA) •30 CFR Part 75 Mandatory Safety Standards for Underground Coal • Separate split of air to each section exhaust to return §75.332 • Main fan on surface, explosion proof installation NO BOOSTER • Face ventilation installation §75.330 • Minimum quantities §75.325 • Methane limits and actions §75.323

SUPPORT IN UNDERGROUND HARD ROCK MINES

September 2, 2017 August 21, 2019 ReadCivil 0 Comments lining, tunnel, tunnel ventilation, ventilation We know that tunnels are underground passages used for underground transportation facilities.For the Lining and Ventilation of Tunnels is an important process in the construction of tunnel ventilation …

Introduction Overview | Introduction | underground COAL

233 Kb: 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.

Mine ventilation || types || fan used in mines || mining ...

Mine tunnels and station tunnels also require adequate ventilation for physiological, cooling and smoke control requirements. Types of Tunnel Ventilation Systems. A number of alternative tunnel ventilation systems are available, including transverse, semi-transverse and longitudinal. For short tunnels that are 3 km or less in length ...

Ventiliation Design Considerations for Underground Mines ...

Winter Alert - Basic Mine Ventilation Provides sound safety practices and compliance help pertaining to underground mine ventilation. 125 slides: MSHA 2203 Ventilation As mine rescue team members, you should be familiar with mine ventilation, in particular the ventilation of the mine …

University of Wollongong Research Online

Here in this video, we have discussed the mine ventilation, methods of mine ventilation,natural ventilation, mechanical ventilation,mine fan, forcing fan, ex...

Ventilation - Safety Training PowerPoint Presentations

Most mines in Australia, at least in the underground co al sector, maintain a validated model to assist with the process of minor to major ventilation circuit adjustments. They also routinely utilise validated ventilation models to track ventilation system perform ance …

Ventilation - Safety Training PowerPoint Presentations

ACOP: Ventilation in underground mines and tunnels (PDF 1.2 MB) While this guidance has not been updated to reflect current work health and safety legislation (the Health and Safety at Work Act 2015 and regulations), it may still contain relevant information and practices to …

Ventilation in underground mines and tunnels | WorkSafe

underground hard rock mining and allowed the mine to meet its accelerated schedule for the development of the new orebody. 2.2 Stillwater Mine, Montana Stillwater Mining Company (SMC) is developing a second underground palladium and platinum mine about 21 km west of their existing Nye operation in Montana. A 5,650-m tunnel is required to gain

(PDF) The importance of underground mine ventilation

Underground Mining Ventilation Systems Market Report: Global Top Players Analysis 2019-2024 - The research study on Global Underground Mining Ventilation Systems Market 2019 by Manufacturers, Regions, Type and Application, Forecast to 2024 by DecisionDatabases.com analyses the complete value chain of the Industry. https:// ...

Underground Mine Ventilation | Technical Aspects of Mining ...

Nov 03, 2015· In the last few articles we have discussed ventilation in mining. Today we will focus on Ventilation-On-Demand in underground mines. This is a technology that was adopted from building heating ventilating and air-conditioning (HVAC) systems where the use of louver dampers coupled with variable frequency drives provide the right amount of ventilation at each part…

(PDF) The importance of underground mine ventilation

Hence, mechanical ventilation becomes the only solution. Cost of Sufficient ventilation throughout mine can be as high as up to 50% of capital as well operating cost of whole mine (Brake, 2006). ...

Types of ventilation system - SlideShare

Underground coal mine ventilation systems are particularly complex because of multiple seam working methods which splits the underground air network into different districts or/and panels thereby allowing multiple ventilation methods.