Maintenance of Incombustible Content of Rock Dust in Underground Coal Mines (Us Mine Safety and Health Administration Regulation) (Msha) (2018 Edition) PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Maintenance of Incombustible Content of Rock Dust in Underground Coal Mines (Us Mine Safety and Health Administration Regulation) (Msha) (2018 Edition) PDF full book. Access full book title Maintenance of Incombustible Content of Rock Dust in Underground Coal Mines (Us Mine Safety and Health Administration Regulation) (Msha) (2018 Edition) by The Law The Law Library. Download full books in PDF and EPUB format.
Author: The Law The Law Library
Publisher: Createspace Independent Publishing Platform
ISBN: 9781729712474
Category :
Languages : en
Pages : 32
Get Book Here
Book Description
Maintenance of Incombustible Content of Rock Dust in Underground Coal Mines (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition) The Law Library presents the complete text of the Maintenance of Incombustible Content of Rock Dust in Underground Coal Mines (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition). Updated as of May 29, 2018 This final rule replaces the Mine Safety and Health Administration's Emergency Temporary Standard (ETS) pursuant to section 101(b) of the Federal Mine Safety and Health Act of 1977. The final rule adopts the requirements contained in the ETS. Under the final rule, mine operators must maintain the incombustible content of combined coal dust, rock dust, and other dust to at least 80 percent in underground areas of bituminous coal mines. The final rule further requires that the incombustible content of such combined dust be increased 0.4 percent for each 0.1 percent of methane present. This book contains: - The complete text of the Maintenance of Incombustible Content of Rock Dust in Underground Coal Mines (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition) - A table of contents with the page number of each section
Author: The Law The Law Library
Publisher: Createspace Independent Publishing Platform
ISBN: 9781729712474
Category :
Languages : en
Pages : 32
Get Book Here
Book Description
Maintenance of Incombustible Content of Rock Dust in Underground Coal Mines (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition) The Law Library presents the complete text of the Maintenance of Incombustible Content of Rock Dust in Underground Coal Mines (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition). Updated as of May 29, 2018 This final rule replaces the Mine Safety and Health Administration's Emergency Temporary Standard (ETS) pursuant to section 101(b) of the Federal Mine Safety and Health Act of 1977. The final rule adopts the requirements contained in the ETS. Under the final rule, mine operators must maintain the incombustible content of combined coal dust, rock dust, and other dust to at least 80 percent in underground areas of bituminous coal mines. The final rule further requires that the incombustible content of such combined dust be increased 0.4 percent for each 0.1 percent of methane present. This book contains: - The complete text of the Maintenance of Incombustible Content of Rock Dust in Underground Coal Mines (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition) - A table of contents with the page number of each section
Author: The Law The Law Library
Publisher: Createspace Independent Publishing Platform
ISBN: 9781729693810
Category :
Languages : en
Pages : 40
Get Book Here
Book Description
Examinations of Work Areas in Underground Coal Mines for Violations of Mandatory Health or Safety Standards (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition) The Law Library presents the complete text of the Examinations of Work Areas in Underground Coal Mines for Violations of Mandatory Health or Safety Standards (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition). Updated as of May 29, 2018 The Mine Safety and Health Administration (MSHA) is revising its requirements for preshift, supplemental, on-shift, and weekly examinations of underground coal mines to require operators to identify violations of health or safety standards related to ventilation, methane, roof control, combustible materials, rock dust, other safeguards, and guarding, as listed in the final rule. Violations of these standards create unsafe conditions for underground coal miners. The final rule also requires that the mine operator record and correct violations of the nine safety and health standards found during these examinations. It also requires that the operator review with mine examiners on a quarterly basis all citations and orders issued in areas where preshift, supplemental, on-shift, and weekly examinations are required. The final rule will increase the identification and correction of unsafe conditions in mines earlier, and improve protection for miners in underground coal mines. This book contains: - The complete text of the Examinations of Work Areas in Underground Coal Mines for Violations of Mandatory Health or Safety Standards (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition) - A table of contents with the page number of each section
Author: The Law The Law Library
Publisher: Createspace Independent Publishing Platform
ISBN: 9781729712436
Category :
Languages : en
Pages : 354
Get Book Here
Book Description
Lowering Miners' Exposure to Respirable Coal Mine Dust Including Continuous Personal Dust Monitors (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition) The Law Library presents the complete text of the Lowering Miners' Exposure to Respirable Coal Mine Dust Including Continuous Personal Dust Monitors (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition). Updated as of May 29, 2018 The Mine Safety and Health Administration (MSHA) is revising the Agency's existing standards on miners' occupational exposure to respirable coal mine dust in order to: Lower the existing exposure limits; provide for full-shift sampling; redefine the term "normal production shift"; and add reexamination and decertification requirements for persons certified to sample for dust, and maintain and calibrate sampling devices. In addition, the rule provides for single shift compliance sampling by MSHA inspectors, establishes sampling requirements for mine operators' use of the Continuous Personal Dust Monitor (CPDM), requires operator corrective action on a single, full-shift operator sample, changes the averaging method to determine compliance on operator samples, and expands requirements for medical surveillance of coal miners. This book contains: - The complete text of the Lowering Miners' Exposure to Respirable Coal Mine Dust Including Continuous Personal Dust Monitors (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition) - A table of contents with the page number of each section
Author: Daniel Harrington
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 12
Get Book Here
Book Description
Author: Safety and Health Technology Center (Denver, Colo.). Informational Service Library
Publisher:
ISBN:
Category : Mine safety
Languages : en
Pages : 26
Get Book Here
Book Description
Author: Department of Health and Human Services
Publisher: CreateSpace
ISBN: 9781493584758
Category : Technology & Engineering
Languages : en
Pages : 58
Get Book Here
Book Description
The workings of a bituminous coal mine produce explosive coal dust for which adding rock dust can reduce the potential for explosions. Accordingly, guidelines have been established by the Mine Safety and Health Administration (MSHA) about the relative proportion of rock dust that must be present in a mine's intake and return airways. Current MSHA regulations require that intake airways contain at least 65% incombustible content and return airways contain at least 80% incombustible content. The higher limit for return airways was set in large part because finer coal dust tends to collect in these airways. Based on extensive in-mine coal dust particle size surveys and large-scale explosion tests, the National Institute for Occupational Safety and Health (NIOSH) recommends a new standard of 80% total incombustible content (TIC) be required in the intake airways of bituminous coal mines in the absence of methane. MSHA inspectors routinely monitor rock dust inerting efforts by collecting dust samples and measuring the percentage of TIC, which includes measurements of the moisture in the samples, the ash in the coal, and the rock dust. These regulations were based on two important findings: a survey of coal dust particle size that was performed in the 1920s, and large-scale explosion tests conducted in the U.S. Bureau of Mines' Bruceton Experimental Mine (BEM) using dust particles of that survey's size range to determine the amount of inerting material required to prevent explosion propagation. Mining technology and practices have changed considerably since the 1920s, when the original coal dust particle survey was performed. Also, it has been conclusively shown that as the size of coal dust particles decreases, the explosion hazard increases. Given these factors, NIOSH and MSHA conducted a joint survey to determine the range of coal particle sizes found in dust samples collected from intake and return airways of U.S. coal mines. Results from this survey show that the coal dust found in mines today is much finer than in mines of the 1920s. This increase in fine dust is presumably due to the increase in mechanization. In light of this recent comprehensive dust survey, NIOSH conducted additional large-scale explosion tests at the Lake Lynn Experimental Mine (LLEM) to determine the degree of rock dusting necessary to abate explosions. The tests used Pittsburgh seam coal dust blended as 38% minus 200 mesh and referred to as medium-sized dust. This medium-sized blend was used to represent the average of the finest coal particle size collected from the recent dust survey. Explosion tests indicate that medium-sized coal dust required 76.4% TIC to prevent explosion propagation. Even the coarse coal dust (20% minus 200 mesh or 75 µm), representative of samples obtained from mines in the 1920s, r equired approximately 70% TIC to be rendered inert in the larger LLEM, a level higher than the current regulation of 65% TIC. Given the results of the extensive in-mine coal dust particle size surveys and large-scale explosion tests, NIOSH recommends a new standard of 80% TIC be required in the intake airways of bituminous coal mines in the absence of methane. The survey results indicate that in some cases there are no substantial differences between the coal dust particle size distributions in return and intake air courses in today's coal mines. The survey results indicate that the current requirement of 80% TIC in return airways is still appropriate in the absence of background methane.
Author: United States. General Accounting Office
Publisher:
ISBN:
Category : Coal mine accidents
Languages : en
Pages : 60
Get Book Here
Book Description
Author: Kenneth L. Cashdollar
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 59
Get Book Here
Book Description
"The workings of a bituminous coal mine produce explosive coal dust for which adding rock dust can reduce the potential for explosions. Accordingly, guidelines have been established by the Mine Safety and Health Administration (MSHA) about the relative proportion of rock dust that must be present in a mine's intake and return airways. Current MSHA regulations require that intake airways contain at least 65% incombustible content and return airways contain at least 80% incombustible content. The higher limit for return airways was set in large part because finer coal dust tends to collect in these airways. Based on extensive in-mine coal dust particle size surveys and large-scale explosion tests, the National Institute for Occupational Safety and Health (NIOSH) recommends a new standard of 80% total incombustible content (TIC) be required in the intake airways of bituminous coal mines in the absence of methane. MSHA inspectors routinely monitor rock dust inerting efforts by collecting dust samples and measuring the percentage of TIC, which includes measurements of the moisture in the samples, the ash in the coal, and the rock dust. These regulations were based on two important findings: a survey of coal dust particle size that was performed in the 1920s, and large-scale explosion tests conducted in the U.S. Bureau of Mines' Bruceton Experimental Mine (BEM) using dust particles of that survey's size range to determine the amount of inerting material required to prevent explosion propagation. Mining technology and practices have changed considerably since the 1920s, when the original coal dust particle survey was performed. Also, it has been conclusively shown that as the size of coal dust particles decreases, the explosion hazard increases. Given these factors, NIOSH and MSHA conducted a joint survey to determine the range of coal particle sizes found in dust samples collected from intake and return airways of U.S. coal mines. Results from this survey show that the coal dust found in mines today is much finer than in mines of the 1920s. This increase in fine dust is presumably due to the increase in mechanization. In light of this recent comprehensive dust survey, NIOSH conducted additional large-scale explosion tests at the Lake Lynn Experimental Mine (LLEM) to determine the degree of rock dusting necessary to abate explosions. The tests used Pittsburgh seam coal dust blended as 38% minus 200 mesh and referred to as medium-sized dust. This medium-sized blend was used to represent the average of the finest coal particle size collected from the recent dust survey. Explosion tests indicate that medium-sized coal dust required 76.4% TIC to prevent explosion propagation. Even the coarse coal dust (20% minus 200 mesh or 75 microm), representative of samples obtained from mines in the 1920s, required approximately 70% TIC to be rendered inert in the larger LLEM, a level higher than the current regulation of 65% TIC. Given the results of the extensive in-mine coal dust particle size surveys and large-scale explosion tests, NIOSH recommends a new standard of 80% TIC be required in the intake airways of bituminous coal mines in the absence of methane. The survey results indicate that in some cases there are no substantial differences between the coal dust particle size distributions in return and intake air courses in today's coal mines. The survey results indicate that the current requirement of 80% TIC in return airways is still appropriate in the absence of background methane."--NIOSHTIC-2.
Author: United States. Mining Enforcement and Safety Administration
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 128
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 80
Get Book Here
Book Description
