New Techniques and Technologies in Thin Coal Seam Exploitation

Author: Artur Dyczko
Publisher: CRC Press
ISBN: 1466556404
Format: PDF, Docs
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Provides an up-to-date overview of the Polish and international experience in the area of thin coal seam mining with an emphasis on implementation of the plow technology in mining. The implementation of the plow technology in Poland is performed by young engineers for whom the automated extraction system presents itself as a great challenge showing the direction of future developments: a production mining face manned by a skeleton crew, fully utilizing the potential offered by the information technology. They create new ways and means of running the production processes, which are successfully used together with the new generation plows. Successive generations of young mining engineers entering their careers are equipped with a new type of ability and, most of all, awareness which is characterized by a new understanding of reality, in which "real" is what is on the screen. They are the guarantee that this direction of research and the drive towards minimizing human involvement in the underground production chores will receive increasing focus and will remain the area of development. The experiences to-date of three mines (KWK Zofiówka, KWK Jas-Mos, and LW Bogdanka SA) show that there is a real potential for the Polish companies to join in the research aimed at developing new plow installations.

Progressive Technologies of Coal Coalbed Methane and Ores Mining

Author: Volodymyr Bondarenko
Publisher: CRC Press
ISBN: 1138026999
Format: PDF, Mobi
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Presenting new technologies in underground coal extraction, with special attention to mine galleries support and maintenance, load mechanism of "massif-support system-safety system" systems, analysis of face equipment for thin coal seams mining and substantiation of rational stoping parameters. Advanced surface mining technologies of coal and ore are discussed in an original form, stability calculations of internal dumps and open-cut faces are presented, as well as examination of land surface subsidence using modern methods of calculation experiments. Special attention is given to the complex mining of mineral resources, such as: iron ore, coal deposits with drilling advance degassing wells, methane extraction from coal and anthropogenic deposits, heat receipt from mine water with help of thermal pumps. The unique geological conditions for mining in Poland and the Ukraine require a new technological approach for mining thin and very thin coal seams with thickness of 1 meter and less, using selective coal extraction methods, leaving rock behind in the mine. Relevant technological solutions are discussed in this volume. Further, technological process control during coal seams underground gasification is described together with pressure-temperature conditions of gas hydrates formation from gaseous mixtures of various content. Substantiation is also given to gas hydrates extraction technologies development and 21st century new pulse technologies of well drilling and a temperature mode of a rock-cutting tool and equipment with cryogenic-gravel filters is examined. Gas extraction processes located in flooded deposits with uniform and macroheterogeneous collectors are presented with the description of an effective methodology of two-subbench technology of ore deposits extraction.

Mine Safety and Efficient Exploitation Facing Challenges of the 21st Century

Author: Liu Zegong
Publisher: CRC Press
ISBN: 0415598966
Format: PDF, ePub
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The International Mining Forum is a meeting of scientists and professionals for exchanging new ideas and experiences, evaluate previously implemented solutions, and discuss fresh ideas that might change the mining industry’s image. In recent years theory and technology in mine safety and efficient exploitation has made considerable progress in China, Poland and other countries, due to the introduction of many new theories and technologies. The International Mining Forum 2010, jointly organized by Anhui University of Science and Technology (China), AGH University of Science and Technology (Poland) and Mineral and Energy Economy Research Institute of the Polish Academy of Sciences (Poland), has provided experts all over the world with an opportunity and platform to exchange information and ideas. Purpose of the forum was to promote research and development of mine safety, efficient exploitation theory and provide theoretical and technical support for mine safety improvement. This book is addressed to researchers and professionals who work in the fields of underground mining technology, rock engineering or mine management.

Mining of Mineral Deposits

Author: Genadiy Pivnyak
Publisher: CRC Press
ISBN: 1138001082
Format: PDF, ePub, Mobi
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In the last decades coal production capacity has increased rapidly and its quality, power and the reliability of equipment has steadily improved. Moreover, stability of production processes can be controlled better. In connection with that, unification of scientific schools focusing on "Mining of deposits" is an integral trend from the viewpoint of technical and technological policy. This collection of papers represents the scientific and technical achievements with regard to mineral deposits mining intensification based on effective use of modern techniques and technologies. Also, specific attention is paid to progressive and innovational technologies in the coal industry of leading countries. Widening the range of mining-geological conditions under which drivage and maintenance of mining activities are carried out, requires application of new constructive decisions. Hence, this collection of papers is focusing on the following topics: results of new equipment introduction; experiments on mutual interaction of roof support elements, protective construction and near-the-contour rock massif; analytical and calculation methods of geomechanical tasks solution; development of gas hydrates and technologies of underground coal gasification; studies on environment protection; economic aspects; management and marketing in mining production, and other important aspects of mineral deposits exploitation.

Thorium

Author: Robert Hargraves
Publisher: Createspace Independent Pub
ISBN: 9781478161295
Format: PDF, ePub, Mobi
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Thorium energy can help check CO2 and global warming, cut deadly air pollution, provide inexhaustible energy, and increase human prosperity. Our world is beset by global warming, pollution, resource conflicts, and energy poverty. Millions die from coal plant emissions. We war over mideast oil. Food supplies from sea and land are threatened. Developing nations' growth exacerbates the crises. Few nations will adopt carbon taxes or energy policies against their economic self-interests to reduce global CO2 emissions. Energy cheaper than coal will dissuade all nations from burning coal. Innovative thorium energy uses economic persuasion to end the pollution, to provide energy and prosperity to developing nations, and to create energy security for all people for all time. "This book presents a lucid explanation of the workings of thorium-based reactors. It is must reading for anyone interested in our energy future." Leon Cooper, Brown University physicist and 1972 Nobel laureate for superconductivity "As our energy future is essential I can strongly recommend the book for everybody interested in this most significant topic." George Olah, 1994 Nobel laureate for carbon chemistry

Energy Efficiency Improvement of Geotechnical Systems

Author: Genadiy Pivnyak
Publisher: CRC Press
ISBN: 1315815044
Format: PDF, ePub, Docs
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This book covers innovative technologies and approaches for improvement of technical and economic parameters of functional geotechnical systems. The focus is on mathematical modelling of objects and processes, as well as the development of techniques and their control algorithms. The book comprises schemata of practical tasks solving related to mine ventilation and electrical circuit operation, cutter-loaders and mining electrical vehicles. It also demonstrates possible applications of hybrid technologies and IT-methods to the work of geotechnical systems. Implementation of methods and technologies presented in the book will allow to reduce energy resources consumption of geotechnical systems, and to enhance environmental and economic parameters of their operation, being one of the essential conditions for sustainable development in modern society. The book is particular of interest to technical specialists, researchers, students and university teachers, whose work is connected to the improvement of efficiency of geotechnical systems.

Ground Control in Mining

Author: S.K. Sarkar
Publisher: CRC Press
ISBN: 9789054107460
Format: PDF, Mobi
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Covering the subject of ground control in mining, this volume looks at such topics as: rock-slab theory of ground pressure in work and practice, the role of in situ-stress in mine planning, and the status of the art of cable bolting.

Global Change Energy Issues and Regulation Policies

Author: Jean Bernard Saulnier
Publisher: Springer
ISBN: 9789400797277
Format: PDF, Kindle
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This book analyses the deep interaction between the world’s environmental crises, energy production, conversion and use, and global regulation policies. Bringing together experts from a wide range of scientific fields, it offers the reader a broad scope of knowledge on such topics as: climate change and exhaustion of resources the relationship between basic science and the development of sustainable energy technologies the relationship between global and local environmental policies the possible competition between foodstuff production and that of agro-fuels urban adaptation negotiations at the international level financial rules This book invites the reader to consider the multidisciplinary aspects of these urgent energy/environmental issues.

Emerging Workforce Trends in the U S Energy and Mining Industries

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309267447
Format: PDF, Docs
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Energy and mineral resources are essential for the nation's fundamental functions, its economy, and security. Nonfuel minerals are essential for the existence and operations of products that are used by people every day and are provided by various sectors of the mining industry. Energy in the United States is provided from a variety of resources including fossil fuels, and renewable and nuclear energy, all with established commercial industry bases. The United States is the largest electric power producer in the world. The overall value added to the U.S. gross domestic product (GDP) in 2011 by major industries that consumed processed nonfuel mineral materials was $2.2 trillion. Recognizing the importance of understanding the state of the energy and mining workforce in the United States to assure a trained and skilled workforce of sufficient size for the future, the Department of Energy's (DOE's) National Energy technology Laboratory (NETL) contracted with the National Research Council (NRC) to perform a study of the emerging workforce trends in the U.S. energy and mining industries. Emerging Workforce Trends in the U.S. Energy and Mining Industries: A Call to Action summarizes the findings of this study.

The New Digital Age

Author: Eric Schmidt
Publisher: Alfred a Knopf Incorporated
ISBN: 0307957136
Format: PDF, Docs
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Outlines a transformational vision of a connected world, drawing on expertise to address questions regarding power balances, the relationship between privacy and security, and the role of technology in combating or enabling terrorism.