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2 edition of Respirable dust survey of an underground oil shale mine and associated milling facility found in the catalog.

Respirable dust survey of an underground oil shale mine and associated milling facility

J. C. Volkwein

Respirable dust survey of an underground oil shale mine and associated milling facility

by J. C. Volkwein

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Published by Dept. of the Interior, Bureau of Mines in [Washington] .
Written in English

    Subjects:
  • Mine dusts.,
  • Oil-shale industry.

  • Edition Notes

    Statementby J. C. Volkwein and P. F. Flink : [Dust Control and Life Support Group, Pittsburg Mining Safety Research Center]
    SeriesInformation circular - Bureau of Mines ; 8728, Information circular (United States. Bureau of Mines) -- 8728.
    ContributionsFlink, Paul F., United States. Bureau of Mines.
    The Physical Object
    Pagination[3], 23 p. :
    Number of Pages23
    ID Numbers
    Open LibraryOL17645971M

    Dust surveys were conducted at six underground coal mines to determine if deep-cutting practices expose face workers to higher levels of respirable dust. The surveyed mines were able to successfully mine deep cuts without significantly increasing the dust . The results show that during , the industry wide mean respirable dust was about 1 mg/m(3), and the mean respirable silica was mg/m(3.)The mean% silica in respirable dust .

    2In this report, the term PEL refers to the respirable coal mine dust standard. 3Lowering Miners’ Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors, 75 Fed. Reg. 64, (Oct. 19, ) (to be codified at 30 C.F.R. pts. 70, 71, 72, 75, and 90). As of Aug , MSHA had not finalized this regulation. DUST AND PRESSURE GENERATED DURING COMMERCIAL OIL SHALE MINE BLASTING Eric S. Weiss, Kenneth L. Cashdollar, and Michael J. Sapko U.S. Department of the Interior, Bureau of Mines Pittsburgh Research Center P.O. Box , Pittsburgh, Pennsylvania ABSTRACT The Bureau of Mines, in support of its long-term study of the explosion and fire hazards of oil shale mining.

    1. Introduction. During mining of seams of mineral rawmaterial, air is polluted with dust. Dust is moving together with the ventilation air (Bhaskar, ) and it settles at the wall and equipment in the excavation (Nawrat et al., , Prostański, ).Dust presented in the ventilation air poses a risk to health and it has negative influence on working by: 5. MODERN ROCK DUST DEVELOPMENT AND EVALUATION FOR USE IN UNDERGROUND COAL MINES. Abstract. Following the promulgation of new permissible respirable dust standards by MSHA in , new alternative rock dusts were created that combined the advantages of current industry applications while potentially reducing miner exposure to respirable dust.


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Respirable dust survey of an underground oil shale mine and associated milling facility by J. C. Volkwein Download PDF EPUB FB2

The Bureau of Mines conducted a field study of respirable dust concentrations at an underground room-and-pillar oil shale mine and at the aboveground milling facility to determine the dust generation sources, personal respirable exposure, characteristic minerals, and size distribution of the dust.

Respirable dust survey of an underground oil shale mine and associated milling facility. [Washington]: Dept. of the Interior, Bureau of Mines, (OCoLC) Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link) http.

ic / respiratory dust survey of an underground oil shale mine and associated milling facility, pb, $ 11 ic / the bureau of mines test program for clay and ceramic raw materials, pb, $ 5 ic / advancing coal mining technology research, development, and demostration in fiscal yearpb, $ 5.

The respirable dust limit formula suggests the first explanation: a mine with a high silica % in the dust is required to keep the dust concentration low under the reduced standard. Additional explanations are also proposed: the variability of the % of silica in the dust, the selective efficiency of control technologies, and different transport.

Airborne respirable dust in underground coal mines has been estimated to be 40–95% coal (Walton et al., ; United States National Institute for Occupational Safety and health, ); the remaining portion consists of a variable mixed dust originating from fractured rock on the mine floor or roof or from within the coal seam.

Mineral dust. Introduction. Respirable dust is the fraction of airborne particulates that can be deposited anywhere in the lung gas-exchange region ().While the size range of respirable particles is specific to an individual, for the purposes of dust sampling and regulatory limits respirable dust has been operationally defined as particles having an aerodynamic diameter Cited by: Sampling and Compliance Overview MSHA’s Final Rule to Lower Miners' Exposure to Respirable Coal Mine Dust The final rule substantially increases operator sampling for respirable coal mine dust and requires immediate corrective action when an operator’s sample shows excessive Size: KB.

Workers in the coal mine had high exposure to respirable dust and quartz, especially the development team that creates mining paths for the miners to extract coal15).

Kizil and Donoghue16) searched of personal res-pirable coal dust measurements recorded by the Joint Coal Board in the underground longwall mines of New South Wales from to File Size: KB.

On-Shift Examination of Respirable Dust. Controls at Underground Coal Mines. Health Hazard Information Sheet U.S. Department of Labor. Mine Safety and Health Administration.

The dust control portion of the approved ventilation plan, which must be implemented before production begins, is a key element of the mine operator’s dust. This study assessed the present-day levels (year –) of exposure to respirable dust (RD) and respirable silica (RS) in taconite mines and evaluated how the mining.

Considerate to Iranian standard for respirable dust concentrations ( mg/m(3)) and international standards (ACGIH = and NIOSH = mg/m(3)), it was found that dust and free silica amounts. respirable dust exposure of workers in underground coal mines.

The goals of this research involve optimizing the use of water sprays and ventilating air, as well as, evaluating emerging control tech­ nologies. An overview of dust controls typically utilized in underground US coal mines will be provided.

Investigation of Dust Levels in Different Areas of Underground Coal Mines Article in International journal of occupational safety and ergonomics: JOSE 15(1). Underground U.S. coal miners were studied cross-sectionally for the association of respirable coal mine dust exposure with pulmonary function and symptoms of airways obstruction.

The study group included 1, miners participating in Round 4 of the National Study of Coal Workers' Pneumoconiosis who had started mining in or after when. History of MSHA Coal Mining Respirable PM Calibration and Maintenance Techniques Inthe Federal Mine Safety and Health Act established that respirable coal mine dust must be measured with a device approved by the Secretary of Labor and Human Services.

The Act also specifies that the approved sampling devices are calibrated at a flow rate of. The respirable dust limit formula suggests the first explanation: a mine with a high silica % in the dust is required to keep the dust concentration low under the reduced standard.

Additional explanations are also proposed: the variability of the % of silica in the dust, the selective efficiency of control technologies, and different transport Cited by: 5. In order to meet engineering needs of Chinese underground coal mines, a new dust-collecting fan, a device of dust separated by centrifugal force.

Exposure to Respirable Coal Mine Dust. This document had the following major recommendations: l. Exposures to respirable coal mine dust should be limited to 1 mg/m3 as a time-weighted average concentration for up to a 10 hour day during a 40 hour work week; 2.

work in areas where average respirable dust concentrations do not exceed mg/m3. There is not a separate standard for respirable silica; rather, where the total respirable coal mine dust contains more than five percent quartz, the respirable coal mine dust standard is computed by dividing the percentage of quartz into the number ten.

The general mission of the Statistical Team was to utilize data obtained through the coal mine operators' respirable dust sampling program, the special SIP and MIP inspections, and MSHA's routine respirable dust inspections to evaluate the effectiveness of the operator and MSHA programs in monitoring respirable dust exposures and compliance.Determination of Alpha Quartz Particle Distribution in Respirable Coal Mine Dust Samples and Reference Standards Volume of Report of investigations: Contributors: Charles W.

Huggins, United States. Bureau of Mines: Publisher: U.S. Department of the Interior, Bureau of Mines, Original from: the University of Michigan: Digitized: Mar.There is no separate standard for respirable silica; rather, where the respirable coal mine dust contains more than five percent quartz, the respirable coal mine dust standard is computed by dividing the percentage of quartz into the number 10 (30 CFR (underground coal mines), § (surface coal mines and surface areas of.