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Conveyor Bridge
A conveyor bridge is a piece of Mining#machines, mining equipment used in Surface mining#Strip mining, strip mining for the removal of overburden and for dumping it on the inner spoil bank of the open-cut mine. It is used together with multibucket excavators, frequently bucket chain excavators, that remove the overburden which is moved to the bridge by connecting conveyors. Conveyor bridges are used in working horizontally layered deposits with soft overburden rock in areas where mean annual temperatures are above freezing. They are frequently used in lignite mining. Setup A conveyor bridge consists of girders resting on two or three supports mounted on rails, or sometimes on crawler tracks. The bridge is set across the pit and moves along the mining face at a few metres per minute. If it runs on rails, the tracks are shifted in accordance with the progress of the mining. The rock is moved from the excavator to the bridge by connecting conveyors. The dumping support of a conveyo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afb 32 F60 2011-10-13
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AFB may refer to: * Armed Forces Bank, a US-based financial institution for military members and families * Armed Forces Bikers, a UK-based motorcycle charity to assist former members of the armed forces * Acid-fast bacilli * Air Force Base * Air Force Brat (children of Air Force personnel) * American Farm Bureau * American flatbow, a style of bow used in archery * American foulbrood, a honeybee disease * American Foundation for the Blind * Spoken Gulf Arabic (SIL code) * AFB, the forward-backward asymmetry Asymmetry is the absence of, or a violation of, symmetry (the property of an object being invariant to a transformation, such as reflection). Symmetry is an important property of both physical and abstract systems and it may be displayed in pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bucket-wheel Excavator
A bucket-wheel excavator (BWE) is a large heavy equipment machine used in surface mining. The primary function of BWEs is to act as a continuous digging machine in large-scale open-pit mining operations, removing thousands of tons of overburden a day. What sets BWEs apart from other large-scale mining equipment, such as bucket chain excavators, is their use of a large wheel consisting of a continuous pattern of buckets used to scoop material as the wheel turns. They rank among the largest vehicles (land or sea) ever produced, and the largest of the bucket-wheel excavators (the 14,200 ton Bagger 293 still holds the Guinness World Record for the heaviest land-based vehicle ever constructed). History Bucket-wheel excavators have been used in mining for the past century, with some of the first being manufacture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining Equipment
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lower Lusatia
Lower Lusatia (; ; ; szl, Dolnŏ Łużyca; ; ) is a historical region in Central Europe, stretching from the southeast of the German state of Brandenburg to the southwest of Lubusz Voivodeship in Poland. Like adjacent Upper Lusatia in the south, Lower Lusatia is a settlement area of the West Slavic Sorbs whose endangered Lower Sorbian language is related to Upper Sorbian and Polish. Geography This sparsely inhabited area within the North European Plain (Northern Lowland) is characterised by extended pine forests, heathlands and meadows. In the north it is confined by the middle Spree River with Lake Schwielochsee and its eastern continuation across the Oder at Fürstenberg to Chlebowo. In the glacial valley between Lübben and Cottbus, the Spree River branches out into the Spreewald ("Spree Woods") riparian forest. Other rivers include the Berste and Oelse tributaries as well as the Schlaube and the Oder–Spree Canal opened in 1891. In the east, the Bóbr River from Ł ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overburden Conveyor Bridge F60
F60 is the series designation of five overburden conveyor bridges used in brown coal (lignite) opencast mining in the Lusatian coalfields in Germany. They were built by the former Volkseigener Betrieb TAKRAF in Lauchhammer and are the largest movable technical industrial machines in the world. As overburden conveyor bridges, they transport the overburden which lies over the coal seam. The cutting height is , hence the name F60. In total, the F60 is up to high and wide; with a length of , it is described as the ''lying Eiffel tower'', making these behemoths not only the longest vehicle ever made—beating ''Seawise Giant'', the longest ship—but the largest vehicle by physical dimensions ever made by mankind. In operating condition, it weighs 13,600 metric tons making the F60 also one of the heaviest land vehicles ever made, beaten only by Bagger 293, which is a giant bucket-wheel excavator. Nevertheless, despite its immense size, it is operated by only a crew of 14. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tenova Takraf
TAKRAF Group (“TAKRAF”), is a global German industrial company. Through its brands, TAKRAF and DELKOR, the Group provides equipment, systems and services to the mining and associated industries. Foundation and History While the official foundation date of TAKRAF Group is given as 1948, its origins stretch back to 1725 when the Lauchhammer works for fabricating construction equipment were established, in then Prussia, together with the first blast furnace for producing iron. 1809 saw the start of activities as a mechanical engineering company, as well as major milestones being contributed to Germany’s industrial history. These included, in 1874, the Lauchhammer works commencing high-rise - and iron bridge construction in Oberhammer, and the start of fabrication of overburden and lignite mining equipment. The Lauchhammer works continued to contribute important firsts into the 20th century. The first overburden conveyor bridge was supplied in 1924, followed, two years later ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Espenhain
Espenhain is a village and a former municipality in the Leipzig district, in Saxony, Germany. On 1 August 2015 it was merged into the town Rötha. Geography Espenhain is situated in the approx. 20 km south and 8 km north of[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Böhlen
Böhlen () is a town in Saxony, Germany, south of Leipzig. Its main features are a small airport and a power-plant. It is located in the newly built Neuseenland, the lakes created in the former open-pit mining areas. History The first documented mention of Böhlen dates to 1353, although the area has been settled since the 7th century. The name of the town is derived from the Slavic word ''bely'' (white, bright, shiny). The manor is first mentioned in 1548. The manor house, locally referred to as the castle, was built in the 16th century. First documentation regarding the old village church dates from 1540, although the building contains Romanesque parts. A plague epidemy during the Thirty Years' War was reportedly only survived by two families. The character of the place was rural for a long time. In 1842 a station on the Leipzig–Hof railway was opened in Böhlen. A schoolhouse with five classrooms was built in 1879. Böhlen was part of Amt Pegau until 1856, then of '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friedrich Von Delius
Friedrich may refer to: Names *Friedrich (surname), people with the surname ''Friedrich'' *Friedrich (given name), people with the given name ''Friedrich'' Other *Friedrich (board game), a board game about Frederick the Great and the Seven Years' War * ''Friedrich'' (novel), a novel about anti-semitism written by Hans Peter Richter *Friedrich Air Conditioning, a company manufacturing air conditioning and purifying products *, a German cargo ship in service 1941-45 See also *Friedrichs (other) *Frederick (other) *Nikolaus Friedreich Nikolaus Friedreich (1 July 1825 in Würzburg – 6 July 1882 in Heidelberg) was a German pathologist and neurologist, and a third generation physician in the Friedreich family. His father was psychiatrist Johann Baptist Friedreich (1796–1862) ... {{disambig ja:フリードリヒ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plessa
Plessa ( dsb, Plesow) is a municipality in the Elbe-Elster district, in Brandenburg, Germany. Following a redrawing of local boundaries which took effect on 31 December 2001, the municipality includes two additional settlements, and therefore now includes Plessa-Süd, Döllingen and Kahla. History The first surviving record of Plessa appears in the 1406 "Landbethe zu Hayn", where a total area of slightly more than 24 Oxgangs is recorded. The name "Ples(o)" comes from an old Sorbian word for a lake, and probably refers to backwaters of the Black Elster River, now to an extent channelled, but which in the fifteenth century, with numerous small tributaries meandered through the area. Taxes were paid to the Elsterwerda Castle, home to the lords who owned the land. The earliest record of a simple unadorned wooden chapel appears in 1540, at this stage without any cross or candle sticks for the altar. Preaching at this time would still have taken place in Sorbian. In 1792 a stone chu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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