Glossary of Mining Terms

Methane monitor An electronic instrument often mounted on a piece of mining equipment, that detects and measures the methane content of mine air. Mine development The term employed to designate the operations involved in preparing a mine for ore extraction. These operations include tunneling, sinking, crosscutting, drifting, and raising.


intake airway commencing from a main intake airway, and an independent return airway terminating at a main return airway, and, in the case of a mine or part thereof which is ventilated by natural means, the whole mine or part; and (34A) “Working” means any excavation made or being made in a mine for search of or obtaining coal.

MSHA Compliance Guide for MSHA's Regulations on Diesel ...

However, in areas where mechanized mining equipment is being installed or removed, equipment operating outby must be included in the initial calculation under paragraph (g) if it is ventilated by intake air on that split. If the equipment in fact does not significantly affect the exposure of miners to diesel exhaust, equipment may be excluded ...

Joy | Mining Corp.

Joy equipment is used in all areas of underground mining, including energy minerals such as coal, industrial minerals such as salt, and hard rock minerals such as copper and iron. Joy equipment is known in the industry as the leading brand of underground mining equipment and is specifically lauded for high reliability and producing the lowest ...

UNDERGROUND FIRE BOSS Utah Labor Commission coal …

the coal seam into the air supply of the mine as layers of the coal face are removed, thus creating a potential safety hazard. (2) Methane emissions arise from the collapse of the surrounding rock strata after a section of the coal seam has been mined and the artificial roof and wall supports are removed as mining progresses to another section.

NMRA Frequently Asked Questions – Pittsburgh Coal Mining ...

Fighting And Sealing Coal Mine Fires. ... Exploration is continued in intake air to the point where normal ventilation controls have been destroyed and ventilation is short circuited. At this point, the first freshair base should be established. ... changes in ventilation, and other pertinent information such as location of bodies, equipment ...

Ventilation | JENNMAR

JSEAL is a specialized foaming cement that is used to build permanent coal mine ventilation seals. The rapid strength gain provides immediate ground support to the surrounding strata with quicker cure times to meet seal approval specifications in days rather than weeks.

MSHA Proposes Belt Air Rule | EHS Today

Belt air is the practice of bringing air into mines for miners to breathe through the same tunnels that are used to take coal out of the mine on conveyor belts. The objective of this proposed rule is to improve mine safety by significantly reducing the hazard of conveyor belt fires in underground coal mines, said MSHA Administrator Richard E. Stickler.

Transport | Basic Mining Process/Terminology ...

The large equipment involved with modern longwalls requires the use of specialized transport equipment. Because this equipment is only required infrequently it is normal practice to hire such equipment as required (or for mining groups to carry such equipment to share between several mines).

Managing water consumption in mining Mining Technology

Aug 21, 2013· Managing water consumption in mining. Share. ... reports that the world’s biggest underground coal mine in Shaanxi province in northern China, a country whose coal industries and power stations use as much as 17% of its water, is under pressure from depleting water supplies. ... plans, designs and manufactures turnkey equipment ...

What are Coal Mining, Brine pumping and other mining searches?

Coal Mining, Brine pumping and other mining searches are specific searches carried out on behalf of property buyers in certain parts of the UK. But what are they and what do they reveal? Coal Mining search. Coal has been mined in many parts of England and Wales. In some areas coalmining goes back for hundreds of years.

Coal Mine Ventilation Efficiency Hairfield Stinnette

underground coal mining operations. The results will aim to show just how efficient today’s coal mine ventilation systems are and what factors may be causing their various efficiencies and inefficiencies. Definition of Volumetric Efficiency Mine ventilation volumetric efficiency is defined as the percentage of total mine air that is “usefully

Fracking vs Coal Analysing the Differences Petro Online

Fracking vs Coal Analysing the Differences Request information. ... For coal mining, an extensive worksite is needed, complete with a large amount of equipment and mountains of waste which can not only be eyesores to the landscape, but also cost a hefty amount. Similarly, coal shafts can be up to ten feet across, entailing much labour and ...

Underground Mining Flashcards | Quizlet

Start studying Underground Mining. Learn vocabulary, terms, and more with flashcards, games, and other study tools. ... the same equipment used to mine the coal can typically be used to tunnel (, continuous miners) ... Intake (clean) air moves in from surface = blower fan Return (mine) air …

15 Important Facts About Coal Mining and Burning

It also supplies nearly 30 percent of energy use worldwide and accounts for 44 percent of the CO2 emitted into the air around the globe. Coal mining has detrimental impacts on human health, the environment, and water supplies. Here are 15 important facts related to coal mining and burning that cannot be ignored. Types of Coal Mining. 1.


adequately provided for at the design stage, is intake air capacity. Whereas high air velocities may be tolerable in return airways and exhaust rises and shafts, (where no personnel are exposed), there is a practical limit to tolerable air velocity in main intakes (shafts and declines) and main development openings where persons travel and work.

Deputy of underground coal mines NSW Resources and …

Deputy of underground coal mines Examiner's report November 2017 ... for respirable dust—3 milligrams per cubic metre of air, or in the case of a coal mine, milligrams per cubic metre of air, or (b) for inhalable dust—10 milligrams per cubic metre of air. ... → aAssess and fight fire from intake side only → delegate tasks:

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.

Health Hazards of Mining and Quarrying ILO Encyclopaedia

Health Hazards of Mining and Quarrying ... Coal mine dust causes coal workers’ pneumoconiosis (CWP) and contributes to the occurrence of chronic airways disease such as chronic bronchitis and emphysema. ... If more than one diesel powered piece of equipment is operating in one air course, ventilation will have to be increased to dilute and ...

Breathing Easy: Respiratory Protection in Coal Mines | EHS ...

In the first 2 months of 2006, 16 miners lost their lives working in West ia coal mines. Since then, unions and organizations advocating for workers' rights have stomped their feet on Capitol Hill, calling for an urgent review of how safety regulations are enforced and whether the personal protective equipment used by miners, including respiratory protection, is

Underground Mine Ventilation Mineral Processing Metallurgy

He should keep in touch with proposed development work and have ready ventilation plans together with necessary equipment, supplies, etc. He should take measures to prevent return vitiated air from mixing with intake air shafts; in some socalled wellventilated mines 50 to 75 per cent, of the air sent to the workers is recirculated vitiated air.

Underground Mining Regulations Occupational Health and ...

Routing of air at coal mine. Separation between primary intake and primary return airways in coal mine. Ventilating air quality and quantity tests. Recording test results for air quality and quantity. Report on ventilation system. Prohibiting entry into unventilated area of noncoal mine. Testing air in unventilated area of noncoal mine

Methods for Controlling Explosion Risk at Coal Mine ...

In the US, main ventilation systems in coal mines always employ the mine entries to move air, at least one entry for intake air and at least one entry for return air (Figure 1). Ductwork is never used in a main ventilation system. This reliance on intake and return mine entries rather than ductwork makes possible the movement of large air ...

Glossary of Mining Terminology Glace Bay

Glossary of Mining Terminology After Damp Gasses resulting from underground combustion, normally carbon monoxide. This is a loose term implying any fatal gas in a mine after an explosion or fire. Air Shaft A vertical opening into a mine for the passage of air. Airway Any passage in a mine along which an air current moves. Some passages are

Free Unfinished Flashcards about 80 hr mining class

equipment that has been checked by the USB of the mines for the safe use in a coal mine is called: permissible: what is your body weight over in high coal: ... intake entry (air) what is the secondary escape way: track: ... a mine tunnel that is used to bring in air, miners, or equipment, it can also be used to take out whatever is mined:

51,000 Reasons to Keep Running with Donaldson Filters ...

Donaldson Blue® extendedservice air filters are designed specifically for extended filter maintenance programs and deliver better engine protection, minimized equipment downtime and reduced longterm operating costs for fleets. If this offroad equipment success story is any indication, Donaldson Blue filters do exactly what is intended, and then some.

Air Compressors For Mining | Mining Air Compressor

Common Mining Applications for Compressed Air. Mining applications where compressed air is especially useful include: Pneumatic Tools – Compressed air is an excellent source of energy for power tools such as drills, wrenches, hack saws and other vital mining equipment that needs to be used in the deep underground stretches of the mines.

Mine Ventilation Systems Missouri ST

Mine Ventilation Systems Practical Mine Ventilation Engineering to be Published by Intertec Puslishing Co. Ventilation is the control of air movement, its amount, and direction. Although it contributes noth ing directly to the production phase of an operation, the lack of proper ventilation often will cause

Coal Mining | JENNMAR

JENNMAR offers a complete line of belt hangers to be used for hanging belt structures within the mine. The following table shows some typical belt hanger assemblies that are available and used throughout the mining industry. If you require a specific or customized assembly, our experienced team of …

Longwall mining Wikipedia

Longwall mining is a form of underground coal mining where a long wall of coal is mined in a single slice (typically – m thick). The longwall panel (the block of coal that is being mined) is typically 3–4 km long and 250–400 m wide.

different types of equipment used in underground coal mining

Jun 11, 2013· From Scotia to Brookwood, Fatal US Underground Coal Mine … underground coal mine explosions have been linked to nonpermissible electrical equipment ignition … niques may be used to design intake air equipment so that it does not …. description of the explosion pointed out that other types of ignition … »More detailed


Figure 94 shows the two methods of ventilating a room and pillar development panel in a coal mine where multiple entries are driven. Figure 94a is the directional, or Wsystem, in which intake air courses are airways in the central portion of the panel, with return airways on both sides, often referred to …

Coal regulations SourceWatch

Currently intakes need just 65 percent. Main says MSHA's change is based on federal research that shows decreasing the amount of coal dust in air intakes can prevent explosions. Coal mining reclamation. Coal mine reclamation is the rehabilitation of land after coal mining