Online Message

CONTACT US

message-img
  • Underground mine ventilation Wikipedia

    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.

    Details >
  • Air quality in underground mining

    Air quality in underground mining Suggested adjustments for the fulfilment of the Commission Directive 2017/164 Ana Catarina Soares Gonçalves Instituto Superior Técnico, Lisbon, November 2019 Abstract The European Commission Directive (EU) 2017/164, published on the 31st of January 2017, has new Indicative Occupational Exposure Limit Values (IOELV) for chemical agents. The sixth article

    Details >
  • Ventilation and Cooling in Underground Mines

    13.03.2011· The constant air quantity β is mainly dependent on the ore handling system and, to a certain extent, on the overall mine production rate. For mines where rock is transported through a decline using diesel powered truck haulage or there is no crushing of the mined rock, a suitable value of β is 50 m 3 /s. This typically increases to 100 m 3 /s when using underground crushers and skip hoisting

    Details >
  • Clean air in underground mines AKASOL Battery Systems

    Clean air in underground mines. 22.08.2017. AKASOL supplies lithium-ion battery systems to Canadian mining equipment provider MEDATECH. Based in Collingwood (Ontario), Medatech Ltd., the Canadian provider of sustainable drive systems for the mining industry, now incorporates AKASOL GmbH's AKASystem AKM NANO lithium-ion battery systems into its designs for electrically powered

    Details >
  • Guidance about underground air quality and ventilation

    The most common mining occurrences of spontaneous combustion are in coal mines. However, spontaneous combustion of sulphide ores can produce high levels of sulphur dioxide and carbon monoxide. Underground fires caused by vehicles can be a significant source of fumes. Ammonium nitrate?fuel oil explosive (ANFO) is a powerful oxidising agent and spills of ANFO prill can promote fire

    Details >
  • A LOCAL UNDERGROUND AIR- COOLING UNIT

    UNDERGROUND AIR-COOLING UNIT Flownex enabled M-Tech to penetrate the market by convincing clients of the economic benefit associated with the Air cooling Units. A detailed techno-economic evaluation was performed using Flownex. This involved a baseline model of a deep mine system and a retrofitted model with Air Cooling Units (ACU). The results showed

    Details >
  • A breath of fresh air Mining underground Australian

    Sandvik Mining's product line manager for underground hard rock mining, Scott Rowe, explained the TH550 and TH540 are the only trucks available with this clean engine option.

    Details >
  • Compressed Air Introduction underground COAL

    Compressed air is commonly used as a power source due to the flexibility afforded by compressed air equipment and because of complications involved with the use of electric or diesel power in some locations underground. It is mainly used for low capacity applications, including drilling short holes (especially for strata bolting), for pumping, for small tools (e.g. impact wrenches, power

    Details >
  • UNDERGROUND MINE VENTILATION SURVEY

    4.2 Air distribution in different coal mining methods 8 4.2.1 Bord and pillar method 8 4.2.2 Longwall method 8 4.3 Types of ventilation systems 9 4.4 Other ventilation system 10 4.5 Equivalent orifice 12 4.6 Mine resistances 12 4.6.1 Laws of mine air friction 13 4.7 Mine system and control devices 13 5 METHODOLOGY 18-37 5.1 Air quantity surveys 18 5.2 Pressure surveys 18 5.3 Equipment’s

    Details >
  • Underground Mine Ventilation Technical Aspects of

    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.

    Details >
  • Ventilation and Cooling in Underground Mines

    An air velocity of 0.25 m/s is the minimum normally allowed in mining and 0.5 m/s would be required where the wet bulb temperature exceeds 25 °C. With respect to achieving thermal equilibrium, the metabolic heat resulting from typical work rates are: rest, 50 W/m 2 ; light work, 115 to 125 W/m 2,medium work, 150 to 175 W/m 2 ; and hard work, 200 to 300 W/m 2 .

    Details >
  • Air quality in underground mining

    Air quality in underground mining Suggested adjustments for the fulfilment of the Commission Directive 2017/164 Ana Catarina Soares Gonçalves Instituto Superior Técnico, Lisbon, November 2019 Abstract The European Commission Directive (EU) 2017/164, published on the 31st of January 2017, has new Indicative Occupational Exposure Limit Values (IOELV) for chemical agents. The sixth article

    Details >
  • Guidance about underground air quality and ventilation

    Ventilation in an underground mine is of critical importance to the occupational health and safety of underground employees. The atmosphere underground is limited and confined, and is thus readily reduced to a sub-standard (or even dangerous) condition if contaminants (e.g. gases, dusts, fumes) produced in the course of operations are not controlled, safely extracted or diluted to acceptable levels.

    Details >
  • Clean air in underground mines AKASOL Battery

    Clean air in underground mines. 22.08.2017. AKASOL supplies lithium-ion battery systems to Canadian mining equipment provider MEDATECH. Based in Collingwood (Ontario), Medatech Ltd., the Canadian provider of sustainable drive systems for the mining industry, now incorporates AKASOL GmbH's AKASystem AKM NANO lithium-ion battery systems into its designs for electrically powered

    Details >
  • Mining Ventilation and lighting Britannica

    Mining Mining Ventilation and lighting: Ventilation is an important consideration in underground mining. In addition to the obvious requirement of providing fresh air for those working underground, there are other demands. For example, diesel-powered equipment is important in many mining systems, and fresh air is required both for combustion and to dilute exhaust contaminants.

    Details >
  • Breathing quality air underground Australian Mining

    The daily contact underground workers have with harsh mining environments requires that companies consider all essential parts of mine ventilation. With 20 years’ experience, Minova provides the

    Details >
  • Compressed Air Introduction underground COAL

    Compressed air is commonly used as a power source due to the flexibility afforded by compressed air equipment and because of complications involved with the use of electric or diesel power in some locations underground. It is mainly used for low capacity applications, including drilling short holes (especially for strata bolting), for pumping, for small tools (e.g. impact wrenches, power

    Details >
  • UNDERGROUND MINE VENTILATION SURVEY

    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.

    Details >
  • ESTABLISHING TOTAL AIRFLOW REQUIREMENTS FOR UNDERGR OUND

    Of Mining Queen’s University, Goodwin Hall 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 either mandated by regulations(s) or determined empirically from known quantities. In some cases, utilization factors were further used to adjust

    Details >

News & Cases

We provide quality and efficient solutions to our global customers