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1 lignite mining
добыча лигнита
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
lignite mining
Extraction of brown coal from natural deposits; lignite is a brownish-black solid fuel in the second stage in the development of coal. It has a little over half the heating value of bituminous or anthracite coal. (Source: KORENa)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Англо-русский словарь нормативно-технической терминологии > lignite mining
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2 lignite mining
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3 lignite mining
< min> ■ Braunkohlenbergbau m -
4 lignite mining
English-Russian dictionary of popular words > lignite mining
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5 lignite opencast mining
< min> ■ Braunkohlentagebau mEnglish-german technical dictionary > lignite opencast mining
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6 open-pit mining
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7 opencast mining
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8 strip mining
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9 surface mining
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10 Kegel, Karl
SUBJECT AREA: Mining and extraction technology[br]b. 19 May 1876 Magdeburg, Germanyd. 5 March 1959 Freiberg, Saxony, Germany[br]German professor of mining who established the mining of lignite as a discipline in the science of mining.[br]Within the long tradition of celebrated teachers at the Mining Academy in Freiberg, Kegel can be considered as probably the last professor teaching the science of mining who was able to cover all the different disciplines. As was the case with a number of his predecessors, he was able to combine theoretical research work with the teaching of students and to support his theories with the practical experience of industry. He has apprenticed at the Mansfeld copper mines, went to the School of Mines at Eisleben (1896–8), worked as an engineer with various mining companies and thereafter became a scholar of the Berlin Mining Academy (1901–4). For twelve years he taught at the Bochum School of Mining until, in 1918, he was appointed Professor of Mining at Freiberg. There, one year later, as a new approach, he introduced lectures on brown-coal mining and mineral economics. He remained Professor at Freiberg until his first retirement in 1941, although he was active again between 1945 and 1951.In 1924 Kegel took over a department at the State Research Institute for Brown Coal in Freiberg which he extended into the Institute for Briquetting. In this field his main achievement lies in the initially questioned theory that producing briquettes from lignite is a molecular process rather than the result of bituminous factors. This perception, among others, led Rammler to produce coke from lignite in 1951. Kegel's merits result from having established all the aspects of mining and using lignite as an independent subdiscipline of mining science, based on substantial theories and an innovative understanding of applied technologies.[br]Bibliography1912, Bergmännische Wasserwirtschaft, Halle (Saale). 1931, Lehrbuch der Bergwirtschaft, Berlin.1941, Bergmännische Gebirgsmechanik, Halle (Saale). 1948, Brikettierung der Braunkohle, Halle (Saale).1953, Lehrbuch des Braunkohlentagebaus, Halle (Saale).Further ReadingE.Kroker, "Karl Kegel", Neue deutsche Biographie, Vol. XI, p. 394 (a reliable short account).Bergakademie Freiberg (ed.), 1976, Karl Kegel 1876–1959. Festschrift aus Anlaß seines100. Geburtstages, Leipzig (contains substantial biographical information).WK -
11 Rammler, Erich
[br]b. 9 July 1901 Tirpersdorf, near Oelsnitz, Germanyd. 6 November 1986 Freiberg, Saxony, Germany[br]German mining engineer, developer of metallurgic coke from lignite.[br]A scholar of the Mining Academy in Freiberg, who in his dissertation dealt with the fineness of coal dust, Rammler started experiments in 1925 relating to firing this material. In the USA this process, based on coal, had turned out to be very effective in large boiler furnaces. Rammler endeavoured to apply the process to lignite and pursued general research work on various thermochemical problems as well as methods of grinding and classifying. As producing power from lignite was of specific interest for the young Soviet Union, with its large demand from its new power stations and its as-yet unexploited lignite deposits, he soon came into contact with the Soviet authorities. In his laboratory in Dresden, which he had bought from the freelance metallurgist Paul Otto Rosin after his emigration and under whom he had been working since he left the Academy, he continued his studies in refining coal and soon gained an international reputation. He opened up means of producing coke from lignite for use in metallurgical processes.His later work was of utmost importance after the Second World War when several countries in Eastern Europe, especially East Germany with its large lignite deposits, established their own iron and steel industries. Accordingly, the Soviet administration supported his experiments vigorously after he joined Karl Kegel's Institute for Briquetting in Freiberg in 1945. Through his numerous books and articles, he became the internationally leading expert on refining lignite and Kegel's successor as head of the Institute and Professor at the Bergakademie. Six years later, he produced for the first time high-temperature coke from lignite low in ash and sulphur for smelting in low-shaft furnaces. Rammler was widely honoured and contributed decisively to the industrial development of his country; he demonstrated new technological processes when, under austere conditions, economical and ecological considerations were neglected.[br]BibliographyRammler, whose list of publications comprises more than 600 titles on various matters of his main scientific concern, also was the co-author (with E.Wächtler) of two articles on the development of briquetting brown coal in Germany, both published in 1985, Freiberger Forschungshefte, D 163 and D 169, Leipzig.Further ReadingE.Wächtler, W.Mühlfriedel and W.Michel, 1976, Erich Rammler, Leipzig, (substantial biography, although packed with communist propaganda).M.Rasch, 1989, "Paul Rosin—Ingenieur, Hochschullehrer und Rationalisierungsfachmann". Technikgeschichte 56:101–32 (describes the framework within which Rammler's primary research developed).WK -
12 Raky, Anton
SUBJECT AREA: Mining and extraction technology[br]b. 5 January 1868 Seelenberg, Taunus, Germanyd. 22 August 1943 Berlin, Germany[br]German inventor of rapid percussion drilling, entrepreneur in the exploration business.[br]While apprenticed at the drilling company of E. Przibilla, Raky already called attention by his reflections towards developing drilling methods and improving tools. Working as a drilling engineer in Alsace, he was extraordinarily successful in applying an entire new hydraulic boring system in which the rod was directly connected to the chisel. This apparatus, driven by steam, allowed extremely rapid percussions with very low lift.With some improvements, his boring rig drilled deep holes at high speed and at least doubled the efficiency of the methods hitherto used. His machine, which was also more reliable, was secured by a patent in 1895. With borrowed capital, he founded the Internationale Bohrgesellschaft in Strasbourg in the same year, and he began a career in the international exploration business that was unequalled as well as breathtaking. Until 1907 the total depth of the drillings carried out by the company was 1,000 km.Raky's rapid drilling was unrivalled and predominant until improved rotary drilling took over. His commercial sense in exploiting the technical advantages of his invention by combining drilling with producing the devices in his own factory at Erkelenz, which later became the headquarters of the company, and in speculating on the concessions for the explored deposits made him by far superior to all of his competitors, who were provoked into contests which they generally lost. His flourishing company carried out drilling in many parts of the world; he became the initiator of the Romanian oil industry and his extraordinary activities in exploring potash and coal deposits in different parts of Germany, especially in the Ruhr district, provoked the government in 1905 into stopping granting claims to private companies. Two years later, he was forced to withdraw from his holding company because of his restless and eccentric character. He turned to Russia and, during the First World War, he was responsible for the reconstruction of the destroyed Romanian oilfields. Thereafter, partly financed by mining companies, he continued explorations in several European countries, and in Germany he was pioneering again with exploring oilfields, iron ore and lignite deposits which later grew in economic value. Similar to Glenck a generation before, he was a daring entrepreneur who took many risks and opened new avenues of exploration, and he was constantly having to cope with a weak financial position, selling concessions and shares, most of them to Preussag and Wintershall; however, this could not prevent his business from collapse in 1932. He finally gave up drilling in 1936 and died a poor man.[br]Principal Honours and DistinctionsDr-Ing. (Hon.) Bergakademie Clausthal 1921.Further ReadingG.P.R.Martin, 1967, "Hundert Jahre Anton Raky", Erdöl-Erdgas-Zeitschrift, 83:416–24 (a detailed description).D.Hoffmann, 1959, 150 Jahre Tiefbohrungen in Deutschland, Vienna and Hamburg: 32– 4 (an evaluation of his technologial developments).WK
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