Eisernhardt civil engineering

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Eisernhardt civil engineering
General information about the mine
Eiserner Hütte and Eisernhardt civil engineering around 1900.jpg
Eiserner Hütte (left) and Eisernhardter Tiefbau (right) around 1900
Rare minerals Pyrolusite
Information about the mining company
Employees 500 (1950s)
Start of operation 1858 / May 11, 1859
End of operation June 30, 1957
Funded raw materials
Degradation of Spateisenstein
Greatest depth 880 m
Geographical location
Coordinates 50 ° 49 '53.8 "  N , 8 ° 1' 36.2"  E Coordinates: 50 ° 49 '53.8 "  N , 8 ° 1' 36.2"  E
Eisernhardter civil engineering (North Rhine-Westphalia)
Eisernhardt civil engineering
Location Eisernhardter civil engineering
Location Iron
local community Wins
District ( NUTS3 ) Siegen-Wittgenstein
country State of North Rhine-Westphalia
Country Germany
District Bergrevier Siegen II

The Eisernhardter Tiefbau mine was an iron ore mine in Siegen - Eisern in the Siegen-Wittgenstein district in North Rhine-Westphalia .

Vein resources and ore deposits

The corridor of the composite pit was almost 290 m long. Spate iron stone was predominantly present in the upper levels. Most of the remedies were still in place on the 14th sole, but very quartz. Mainly spat and magnetic iron stones were funded . The iron stone had a manganese content of 8%.

The rose bush was about 140 m long and up to 3 m thick at a depth of 200-300 m. Under the 7th level (390 m), the agent was only in ruins and therefore unworthy of construction. The middle old birch had a thickness of 4–7 m in the upper levels and was 220 m long, from the 11th level the passage center decreased. Below it was only 25 m long. At a depth of 780 m only rubble was left of it.

The middle trader was 2–4 m thick, the machine aisle 2–6 m, the theater aisle 2–4 m and Krämer-Imbogen was 0.3–2 m thick. In the first floor the passage means brown stone and spate iron stone were found , while in the valley floor only spate iron stone occurred. The side corridors included Taubes Rad , Morgenröthe , Vulkan , Neuthal , Cephalus , Junge Birke , Stracke Birke , Hohe Hannes and Lümpchen .

history

The mine was created through a combination of the Friedensburg , Harteborn , Abendstern and Hinterste Sinternzeche pits in 1858. On May 11, 1859, the consolidation of 20 pits followed. The Morgenröther Erbstollen was built in 1862 and reached a length of 690 m. Civil engineering began in 1864, and the following depths were reached in the shaft :

  • 1864: 25 m
  • 1865: 42 m
  • 1866: 58 m
  • 1867: 78 m
  • 1868: 80 m
  • 1884: 140 m
  • 1887: 200 m
  • 1893: 240 m
  • 1895: 290 m
  • 1908: 440 m
  • 1914: 540 m
  • 1929: 780 m

It had a size of 2.5 × 3.2 m. In the end, its depth was 788.2 m, the total depth of the pit 880 m. The steam engine had a power of 47 hp. In 1891 the wooden headframe was replaced by a new, 48 m high steel frame and a more powerful hoisting machine was purchased.

year Delivery rate
1859 3,743 t
1863 5,352 t
1865 7,013 t
1869 6,462 t
1876 15,282 t
1879 15,444 t
year Delivery rate
1885 20,492 t
1890 19,513 t
1895 27,104 t
1897 33,626 t
1900 33,689 t
1903 24,419 t
year Delivery rate
1905 28,813 t
1910 less than 50,000 t
1926 60,000 t
1953 117,089 tons
1955 108,989 t

In the 1870s, the mine became the most important in the mountain area. The funding rose steadily. In 1865 just under 7,000 t of iron ore were mined, in 1876 it was already over 15,000 t and in 1885 just under 20,000 t. In 1879 the mine had a workforce of 120 men. Since 1883 there was a connection to the Eisern-Siegen Railway . In 1891, compressed air mining was introduced. A compressor was bought for this. In 1895 roasting ovens were built for further processing and preparation. In 1900, 33,689 t of iron ore were extracted. But while 81,000 t were already mined at the Brüderbund in Eiserfeld in 1913, the production at Eisernhardter Tiefbau was still below 50,000 t.

In 1911, the mine ownership passed into the possession of the Charlottenhütte near Niederschelden . A short time later the mine facilities were extensively modernized, in 1918 a new raw spar processing facility with roasting ovens and a loading facility was built, later the pit was electrified and a new twin hoisting machine was purchased. In 1926, in the course of the change of ownership to the United Steelworks, a connection route to the Brüderbund mine was cut on the 9th level at a depth of 490 m, where it reached the 6th level at a depth of 470 m. The daytime facilities of the Brüderbund in the Kohlenbachtal were demolished shortly afterwards and Eisernhardter Tiefbau expanded into a central facility. In 1926 the association mined 182,400 t almost 10% of the total production in the Siegerland. Even during the crisis, production as one of the few Siegerland mines did not stand still. In 1932 the breakthrough to the Ameise pit in the Leimbachtal took place on the 14th or 780 m level. The association followed seven years later. In the 1950s, the association mined almost 125,000 t of iron stone annually with a workforce of 500.

In 1953 the mine was attached to Erzbergbau Siegerland AG . This carried out extensive investigations. 17 km of routes, 332 m of shaft and 6,968 boreholes were created. Almost 750,000 t of iron ore reserves were proven, but these were no longer mined. On June 30, 1957, the mine was closed.

Consolidations

The most important associations of the Eisernhardter Tiefbau mine :

  • Old birch (Eisern, * before 1791), mining of brown and black iron stone
  • Ant (Eisern, * 1835, closed on August 27, 1932, 990 m depth)
  • Brüderbund (Eiserfeld, * around 1400, closed on July 15, 1958, depth 1274.8 m)
  • Krämer (Eisern, * before 1674, closed in 1903)
  • Michel (Eisern, * before 1623, consolidation 1884)
  • Mocke ( Siegen - Kaan-Marienborn , * 1847), closed on December 31, 1957.
  • Nachod (Eisern / Eisernhardt, * 1867), purchased in 1961, mining of iron ore
  • Silberquelle ( Wilnsdorf - Obersdorf , closed in 1911), from 1874 civil engineering was carried out down to a depth of 180 m. The deep Silberqueller Erbstollen was set in the Obersdorftal. The production in 1885 amounted to 6,114 t of iron ore, 11 t of zinc ore and 41 t of lead ore. The passage center was made of Spateisenstein with inclusions of lead, copper, zinc and nickel.
  • Stracke Birke (Eisern, * 1768), mining of brown and black iron stone

See also

literature

  • Hans Dietrich Gleichmann: The Iron Hardt - From the mining of the Siegerland. Verlag Bertelsmann Fachzeitschriften, Gütersloh 1987, ISBN 3-570-03863-8

Individual evidence

  1. ^ A b c d T. Hundt, G. Gerlach, F. Roth, W. Schmidt: Description of the mountain areas Siegen I, Siegen II, Burbach & Müsen ; Bonn 1887
  2. ^ Journal for the mining, smelting and salt works in the Prussian state , Berlin; Edition 1860
  3. a b c d Hans Dietrich Gleichmann: Der Füssenberg - The great time of the Siegerland iron ore mining , Bertelsmann Fachzeitschriften-Verlag Gütersloh, 1994.
  4. ^ Journal for the mining, smelting and salt works in the Prussian state , Berlin; Edition 1870
  5. ^ Journal for the mining, smelting and salt works in the Prussian state , Berlin; Edition 1898