Uranium mine ventilation costs

by Robert C. Bates

Publisher: U.S. Dept. of the Interior, Bureau of Mines, Publisher: For sale by the Supt. of Docs., U.S. G.P.O. in [Washington, D.C.]

Written in English
Published: Pages: 18 Downloads: 158
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Subjects:

  • Uranium mines and mining -- Safety measures.,
  • Mine ventilation -- Costs.

Edition Notes

Bibliography: p. 18.

Mining Cost Service continues to be a useful reference on a wide range of topics for early stage mine planning through to ‘fill the gaps’ on more detailed studies. Mining Cost Service provides an independent source for information on equipment, quantities and cost for a significant number of mining methods and range of production rates.   The uranium mining and processing of uranium ores in two processing plants were stopped in Decommissioning of uranium mines and production facilities started in Between and , uranium recovery from mine water treatment and environmental restoration amounted to a total of t U. mucho hp variable speed mine ventilation fan installation - p&m coal mining co. t.l sartain & t.e. mcdaniel advances, modeling and software practical mine ventilation engineering - jerry chen-jen practical mine ventilation engineering. jerry chen-jen tien. intertec publishing, - mine ventilation - pages. 0 reviews. From the late s to the mid-’60s, 4 million pounds of uranium ore were extracted in the U.S., without safety codes and understanding of the consequences. Mine shafts had little to no ventilation, despite being as deep as 1, feet. The miners breathed in the dust, ate lunch in the mine and even drank water coming out of the rock.

  The uranium market has steadied through the balance of the third quarter, following the announcement of the restart of the Cigar Lake mine and Denison's % owned McClean Lake uranium . Underground uranium mines have ventilation shafts installed at appropriate distances along the ore deposit. A large mine will usually have several ventilation shafts; some mines have as many as 14 vents. Mine ventilation is necessary to reduce concentrations of radon and radon decay products in the mine air to which miners are exposed. J J admin 0 Comments Africa, Langer Heinrich Mine, Namibia, Uranium Paladin Energy Ltd has restarted its Langer Heinrich Mine during the 2nd quarter confirming restart capital, costs and operational performance. Clandestine Uranium Mine & Mill Still Under IAEA Investigation •Iran omitted from national websites, pre declarations to IAEA, and OECD/IAEA “Red Book” reporting any indication of.

M. Alzoubi, A. Zueter, A. Nie-Rouquette, A.P. Sasmito*, Freezing on demand: A new concept for mine safety and energy savings in wet underground mines, International Journal of Mining Science and Technology 29 () , doi: /   Mining requires extensive capital expenditures, both for exploration and the initial establishment of mining operations. However, once a mine is operational, its operating costs . These mines are in development stages. Open, retreat, and top-slice sloping is planned. Adequate ventilation is essential in uranium mining since sufficient air must be coursed through the workings to maintain airborne radioactive concentration at tolerance levels send dilute exhaust gases where diesel-powered equipment is used.   Canyon Mine is probably the lowest cost uranium mine in the United States.” The U.S. imports most of the uranium it uses because it’s cheaper to buy from other countries, including Canada.

Uranium mine ventilation costs by Robert C. Bates Download PDF EPUB FB2

Additional Physical Format: Print version: Bates, Robert C. Uranium mine ventilation costs. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines: For.

Additional Physical Format: Online version: Bates, Robert C. Uranium mine ventilation costs. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines: For. Uranium Mine Ventilation Costs. Authors Bates-RC Source MISSING pages Link NIOSHTIC No. Abstract This Bureau of Mines report converts published data on the cost of ventilating uranium mines to a common price base and analyzes these data to determine the cost per ton of uranium ore at various levels of radiation exposure control.

@article{osti_, title = {Analysis of reported ventilation costs for uranium mine radon daughter control}, author = {Bates, R.C.}, abstractNote = {Published information discussing uranium mine radon daughter controls and related costs was examined and used to develop an estimated (projected) cost per ton for any level of control.

Results show a clear power function increase of cost for. Uranium mines and mining. See also what's at Wikipedia, your library, or elsewhere. Broader terms: Mines and mineral resources; Uranium industry; Used for: Uranium mining; Filed under: Uranium mines and mining Radiation exposure compensation act of joint hearing before the Subcommittee on Health and Scientific Research of the Committee on Labor and Human Resources and the.

The radiation in underground uranium mines and methods of ventilation and exposure control have been well described by numerous authors (Bossard, ; McPherson, ; Smith, ), and are summarized below.

An understanding of the behaviour of radon gas and progeny is imperative to eliminate the potential for. The Uranium Mines and Mills Regulations contain both direct and indirect references to the ventilation of uranium mines or mills.

For example, section 3 of the Regulations is a comprehensive summary of the general types of information to be included in an application for a uranium mine or mill licence, except a licence to abandon. Ventilation. Methane Example Section (b). Actions for excessive methane continued.

When one and one-half percent or more methane is present in a working place or an intake air course, including an air course in which a belt conveyor is located or an area where mining equipment is being installed or removed, only work necessary.

Frequently Asked Questions about Depleted Uranium Deconversion Facilities Deconversion involves extracting the fluoride from the depleted uranium hexafluoride (DUF 6), or "tailings," produced during the uranium enrichment process.

The questions and answers on this page provide information about deconverting DUF 6 into fluoride products (for commercial resale) and uranium oxides (for disposal). Underground Mining Methods presents the latest principles and techniques in use today. Reflecting the international and diverse nature of the industry, a series of mining case studies is presented covering the commodity range from iron ore to diamonds extracted by operations located in all corners of the world.

Industry experts have contributed 77 chapters/5(5). Aptly named for its isolated location, the Orphan Mine claim was spread over acres. The surface mine, owned by Western Gold and Uranium Inc., was limited to three acres.

URANIUM MINING METHODS. Based on the current understanding of uranium deposits in the Commonwealth of Virginia, extraction of uranium ore would use open-pit mining, or underground mining, or a combination of both ().These general terms incorporate a large variety of design possibilities—there are as many methods of mining uranium as there are orebody sizes, shapes.

Introduction Historic mining for pigment and radium (to ) Uranium minerals were known, without a detailed knowledge of their elemental composition, at least from in the Saxonian Ore Mountains (Erzgebirge) in Germany and Bohemia (modern Czech Republic) (Dahlkamp, ).Uranium was identified in minerals from this region by Martin Klaproth, although he.

Inuranium mining under the U.S military's Manhattan Project began on Navajo Nation lands and on Lakota Nation lands. On August 1,the responsibility for atomic science and technology was transferred from the military to the United States Atomic Energy ard, widespread uranium mining began on Navajo and Lakota lands in a nuclear arms race with the Soviet Union.

Cost curve position remains an important value differentiator for mining companies, especially during periods of low metal prices. For precious metal companies, the standard (non-GAAP) cost reporting methodology are the World Gold Council (WGC) guidelines first published in and consist of three components: Adjusted Operating Costs, All-in Sustaining Costs (AISC), and All-in Costs (AIC).

Directives are documentation issued for any changes to the ventilation that will ensure the correct installation or change to any design, equipment, or condition. The author has implemented ventilation management programs in several mining operations, and notable mentions include system implementations in a potash mine and a uranium mine.

Most mines lacked proper ventilation, and in the nineteen-fifties public-health officials discovered that radon concentrations were nearly a thousand times higher than. As mine operation is closely linked to market changes, you need to be able to scale up and down easily and efficiently. This isn’t possible with a built-in cooling and underground mine ventilation plant, but with rentals, you can quickly modify your setup at a fraction of the cost of buying a new permanent plant.

Figure Basic ventilation system underground where D is a ventilation door or airlock, R is a mine regulator and 1, 2, 3 are working places with a surface exhaust fan. To maintain adequate ventilation through the life of a mine, careful advance ventilation planning is essential.

The latest reported spot price was US$ per pound (A$/lb), still down from the US$50/lb (A$69/lb) or US$60/lb (A$83/lb) most experts say it will need to be to make developing new mines worthwhile. Of course, contract uranium prices are known to be higher than spot, but clearly not that much higher that they transform the economics of.

The uranium series and radioactive decay. Radon and its daughters cost but powerful personal computers proliferated in engineering offices during the 'eighties that the full impact of the computer revolution was realized in the day-to-day work of most mine ventilation engineers.

This book reflects the changes in approach and design. “The Navajo uranium miners averaged cumulative exposures that were about 44 times higher than the levels at Hiroshima and Nagasaki,” reveals environmental writer Judy Pasternak in her book. Mine ventilation is the most important way of reducing radon in uranium mines.

At present, the radon and radon progeny levels in Chinese uranium mines where the cut and fill stoping method is used are 3–5 times higher than those in foreign uranium mines, as there is not much difference in the investments for ventilation protection between Chinese uranium mines and.

Uranium is a naturally-occurring radioactive element that has been mined and used for its chemical properties for more than a thousand years.

It is now primarily used as fuel for nuclear reactors that make electricity. Uranium can be recovered in two ways: by conventional mining of the rock (ore), or by using strong chemicals to dissolve uranium from the rock that is still in the ground and.

We represent a global community from countries involved in all aspects of mining. We exist to support and advocate for everyone in the sector, whether you are a director, manager, technician, consultant or student, working at a desk, in a lab or in the field.

The Ranger Uranium Mine opened in the early s, after much protest from the Mirrar people, who made it clear that they opposed the mine. Rio Tinto has assured Australians, UNESCO, and the aboriginal owners that it is operating under “world’s best practices” of uranium mining, a term some would argue is an oxymoron.

Uranium mining is the process of extraction of uranium ore from the ground. The worldwide production of uranium in amounted to 53, tonnes. Kazakhstan, Canada, and Australia were the top three producers and together account for 68% of world uranium production.

Other important uranium producing countries in excess of 1, tonnes per year were Namibia, Niger, Russia, Uzbekistan and. Today, more than 1, uranium mines lay abandoned within the borders of Navajo Nation. Some are barred with rubble, but most are left exposed. The task of cleanup is daunting.

Uranium mining hasn't caused any massive cave-ins or oil spills, but it has resulted in a huge death toll all the same.

Let's not forget the hidden costs of uranium mining — High Country News. The company, new to uranium mining, has pledged $, a year for five years to improve the properties. Kimmerle will receive annual payments plus royalties for any uranium.

On Augthe Company announced it made a number of changes to its management team in order to reduce costs, Energy Fuels is a leading U.S.-based uranium mining .guidelines to be followed in designing a ventilation system for a mine with high radon emanations. Readers who are interested only in the control of radiation in subsurface openings should turn directly to Section THE URANIUM SERIES AND RADIOACTIVE DECAY Atomic structure; alpha, beta and gamma radiation.The uranium series and radioactive decay Radon and its daughters cost but powerful personal computers proliferated in engineering offices during the 'eighties that the full impact of the computer revolution was realized in the day-to-day work of most mine ventilation engineers.

This book reflects the changes in approach and design.