· Explosionproof design Coal mine is a typical explosive gas atmosphere, in which explosive gases, such as CH 4 and CO, account for a higher proportion than in standard air. And it is easily to be ignited with fire, electronic spark, even electrostatic spark to lead to a coal mine disaster. All electrical apparatus for coal mine in China must meet the national compulsory safety requirements ...

The prevention and control of fire and explosion in mines; The prevention and control of fire and explosion at mines used for storage and other purposes ; HSE Approved specifiions for fire resistance and hygiene of hydraulic fluids for use in machinery and equipment in mines; Ventilation of blind ends; Flammable dust explosion; Guidance on barriers bagged .

 · 1. Introduction. Coal is the chief energy and raw industrial material (Song et al., 2019).Underground mining is the primary method of coal mining in China, which is prone to cause various disasters, such as gas explosion, fire, gas outburst and mine flood (Ke et al., 2020).Gas (CH 4) explosions in underground coal mine have caused lots of casualties and property losses during the coal mining ...

Over a century, a sophistied legalisation system was built resulting in a dramatic improvement of underground coal mine explosion control performance. Several important revisions and amendments were made throughout this long period of progress. Roof falls and machinery gradually became the greater issue than explosions. As the continued amendment of existing regulation, the focus of the ...

Mr P Fenner UK Coal Mining Limited Mr D Flack Federation of Independent Mines Dr P Holmes British Gypsum Limited Mr S Hunneyball TES Bretby Limited Dr B Jones Mines Rescue Service Limited Mr S Mills British Gypsum Limited Mr G Robinson Cleveland Potash Limited Mr N Rowley Cleveland Potash Limited Mr E Ruck UK Coal Mining Limited Mr R Young British Association .

By 1900, fatal explosions had occurred in nearly every state with significant underground coal mining activity, and many of these explosions were attributable to methane gas. During 1870–1890, state mine inspectors detailed 200 gas ignitions that resulted in 368 fatalities in Pennsylvania anthracite mines alone [Humphrey 1960].

→ Audit the performance of specific coal dust explosion control measures for all underground coal mines. Auditing → Carry out an audit in accordance with the mine safety management system and applicable standards, as specified in the prerequisites for the Dust Explosion Control Measures Auditor Practising Certifie. → Provide a report to the mine operator on the performance of the ...

CONTROL METHODS ... an accidental explosion (including a sulphide dust or coal dust explosion); (c) a failure of the primary ventilation system; (d) flooding; (e) an inrush of mud or tailings; (f) an inrush or outburst of gas; or (g) the extensive collapse of workings. (2) The principal employer at, and the manager of, an underground mine must ensure that, so far as is practicable, the ...

As in coal mine spontaneous combustion management, explosion hazard was managed by continuous nitrogen injection aimed at maintaining an explosive inert atmosphere in a highly inaccessible TBM pressurized chamber area. The background to hazard identifiion and control solutions including continuous nitrogen inertisation provided herein would enhance explosion management in both civil .

Over a century, a sophistied legalisation system was built resulting in a dramatic improvement of underground coal mine explosion control performance. Several important revisions and amendments were made throughout this long period of progress. Roof falls and machinery gradually became the greater issue than explosions. As the continued amendment of existing .

 · Overview • EXPLOSION • Mechanism of Explosion • Types of Explosions • PREVENTION OF EXPLOSIONS • Explosion Protection Plan • Explosion Control Measures • References 2 3. EXPLOSION • In coal mines there are hazards that are inherent to the coal seam and those that are introduced by the mining method. • One of the most ...

CLOSE CONTROLS Applying filters Previous item ... Most major disasters in coal mines are caused by explosions of coal gas or coal dust; some may be due to other causes, such as fire, explosives, fall of roof, or haulage accidents. Only one major disaster occurred in a coal mine in the United States during 1939an explosion in the Duvin mine, Providence, Ky., on July 14, .

 · "A CoalMining Horror," New York Times, January 25, 1884. Charles Graham, "The Disaster at Crested Butte, Colorado," Harper's Magazine, February 16, 1884. Gunnison County Libraries, "Jokerville Mine Explosion Memorial," John McNeil, "Crested Butte Disaster," in First Annual Report of the State Inspector of Coal Mines, Year Ending July 31, 1884 (Denver: Collier .

research on industrial dust explosions, development and control of coal mine explosions, control of mine fires, dustallaying in mines, safe use of mining explosives, strength and compressibility of coal pillars, effect of temperature and humidity variations on rock strata in mines, and on other mine safety problems. Dr. Hartmann received his training at Cooper Union Institute of Technology ...

CONTROL METHODS ... an accidental explosion (including a sulphide dust or coal dust explosion); (c) a failure of the primary ventilation system; (d) flooding; (e) an inrush of mud or tailings; (f) an inrush or outburst of gas; or (g) the extensive collapse of workings. (2) The principal employer at, and the manager of, an underground mine must ensure that, so far as is .

 · As an explosion control measure, rock dusting has been used in underground coal mines in many major coal producing countries with different standards. The effectiveness of the rock dust in reducing explosion intensity has been proven by historic events and laboratory experiments. The main functions of rock dust in controlling mine explosions (, isolator, physical heat sink and chemical ...

Controlling caving of roof coal in thick seam mining using sublevel caving method. Consolidating the floor dust to prevent it from being raised. 2. Measures against ignition of dust accumulation . Measures against ignition of flammable firedamp mixtures. Neutralization and consolidation of dust at working faces within a radius of 10 to 20 m before shotfiring by means of inert water or stone ...

Coaldust explosions, however, present a particular problem, because coal dust is something that is produced at every point in the mining process and accumulates, through the movement of air and the transportation of coal, on the floors, walls, and ceilings of the mine, all the way from the mine entrance to the deepest shafts. Therefore, when a small explosion occurs somewhere in the mine, it ...

Explosion. The explosion occurred at 3:27 pm local time (19:27 UTC) on Monday, April 5, 2010, at the Upper Big Branch South Mine near the community of Montcoal, about 30 miles (48 km) south of mine was operated by the Performance Coal Company, a subsidiary of Massey Energy. The explosion ignited from an unknown source with high methane levels .

Work on intermediate goal 2 broadly includes research in the area of coal mine explosion prevention through improved ventilation, methane monitoring, rock dust evaluation, and degasifiion. Some areas of research in this intermediate goal are more relevant than others. Work in the area of degasifiion considerably lags common practices in the industry. Current work by the Mining Program in ...

On 11 January 2021, a serious accident occurred while a mine worker was driving a truck in an underground mine. There was an explosion in the truck cabin causing serious burns to the worker's face, hands and chest. Fortunately, the worker's eyes were protected from the blast by safety glasses. Figure 2 shows a window lying where it was ...

determining the practicability of preventing coalmine explosions and improving mining conditions, a general inquiry was begun by Mr. Hall, with the assistance of Walter 0. Snelling and under the. 4 COALMINE ACCIDENTS: CAUSES AND PEEVENTION. advice of Prof. Charles E. Munroe, concerning the nature and extent of such explosions and the methods employed in the United States or in foreign ...