Ottiliae shaft
| Ottiliae shaft | |||
|---|---|---|---|
| General information about the mine | |||
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| Information about the mining company | |||
| Start of operation | 1868 | ||
| End of operation | March 31, 1980 | ||
| Funded raw materials | |||
| Degradation of | Lead luster , zinc blende | ||
| Greatest depth | 594 m | ||
| Geographical location | |||
| Coordinates | 51 ° 48 '30.3 " N , 10 ° 18' 47.2" E | ||
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| Location | Clausthal-Zellerfeld | ||
| local community | Clausthal-Zellerfeld | ||
| District ( NUTS3 ) | Goslar | ||
| country | State of Lower Saxony | ||
| Country | Germany | ||
| District | Clausthal mining inspection | ||
The Ottiliae-Schacht (or Ottiliaeschacht) is located west of Clausthal-Zellerfeld on a hill between the Zellerfelder and the Clausthaler Tal (Bremerhöhe), which flow into the Innerstetal . The shaft is not an independent mine , but served as the central main shaft for the ores (silver-bearing lead luster and zinc blende ) of the Rosenhöfer , Burgstätter and Zellerfeld corridor trains . It is considered part of the Rosenhof mine . The shaft is named after the Prussian mining captain Ernst Hermann Ottiliae (1821–1904).
history
Sinking
From 1868 to 1874, in the immediate vicinity of the central ore processing of the Royal Berg inspection to Clausthal the Ottiliae shaft as a new saigerer main conveyor shaft in the dimensions 6.8 m x 2.0 m drilled . The depth was initially 341 m to the deep water section, a section of the Ernst-August tunnel . The shaft was given a powerful steam hoisting machine (150 HP) with cable drums and, as the first Upper Harz shaft, a steel head frame . The 19.68 m high half-timbered scaffolding was built by the Clausthaler Bergschmiede. Although it was based on English scaffolding, it was completely in-house.
business
The ore was at the depths of the water route with boats from up to 6 km from the dismantling transported. The barges were equipped with four steel boxes. The conveyor boxes were attached to the hauling rope in the port of the Ottiliae shaft and brought to the surface. On the hanging bank of the shaft, the crates were emptied in trolleys and driven into the crushing house, which was followed by ore processing. There was also a secondary production up to the bottom of the valley (36 m depth). In addition, the ores were extracted from the Silbersegener Schacht located on the other side of the valley , which in turn extracted the ores from the Rosenhöfer district, which were transported in a very complicated manner.
After the decision to set up the deepest waterway to the collecting and main conveying line, the Ottiliae shaft system was extensively expanded and modernized between 1900 and 1905. A new ore processing building was built, the shaft was deepened to its deepest water section to its final depth of 594 m and converted to electrical Koepe extraction . During the renovation, there was a daily conveyor line from the Kaiser Wilhelm shaft to the central processing unit, on which the ores were transported over the surface with electric locomotives. After the completion of the Ottiliaeschach, the ores were brought to the Ottiliaeschacht with an electric locomotive conveyor on the deepest waterway. The old tonnage shafts with their outdated turning wheel conveyors could finally be discarded.
Shutdown
In 1930 the Clausthal mines were shut down by the last operator, Preussag , because continued operation at that time no longer seemed economical. The drainage was adjusted so that the mine to the level of the Ernst-August-tunnel drowned . The shaft, like the other shafts still remaining in the Clausthal mine, initially remained open.
Hydroelectric power plant
In 1940, the Clausthal power and water management company , a subsidiary of Preußag, converted the former industrial water supply for the Rosenhöfer pits and led the water into the shaft via a downpipe. A Pelton turbine system with an output of 2 × 750 kW generated electrical energy on the bottom of the Ernst August tunnel. The maximum annual work in the middle year was around 5 million kilowatt hours. The runoff water flowed off through the Ernst August tunnel. For the driving experiences of maintenance personnel a smaller carrier was set up. In 1980 Preussag's right to use the surface water of the Harz - the Upper Harz water shelf - ended . The turbines were then switched off.
Safekeeping
In 1984 Preussag AG Metall kept the shaft tube up to a depth of 60 m with a concrete seal. For this depth was 60 meters shuttered , there were rock bolt set and up to the level of the shaft pit bank concreted . Preussag also made an application to demolish the daytime facilities. The headframe and the ancillary facilities were then declared an industrial monument by the monument protection authority . Volunteers from the local history and museum association look after the facilities together with the World Heritage Foundation in Harz.
Technical monuments, traces
The mine site is now a branch of the Upper Harz Mining Museum . The shaft hall with the steel headframe from 1876 still stands on the Zechenplatz. It is the oldest preserved headframe in Europe and is part of the world cultural heritage. In the front part of the hoisting machine house, the last used conveyor reel, built in 1914, is still functional. In the back there is a museum exhibition on shaft conveyor technology in the Upper Harz. Furthermore, a computer house and the inlet structure of the turbine downpipe ("water lock"), as well as the colliery house (now a private house) some distance away. The foundation of the chimney from the broken boiler house can also still be seen. The daytime conveyor line was rebuilt between the former Clausthal train station and the Ottiliaeschacht along the historical route. This allows museum visitors to travel from the train station to the Ottiliae shaft.
Trivia
On April 30, 2013, the site was used to film the film The Monuments Men .
literature
- Hermann Banniza: The mining and metallurgy of the Upper Harz . Enke, Stuttgart 1895 (VI. General German Miners' Day in Hanover).
- Axel Funke: Headframes of the Upper Harz: the scaffolding at the Ottiliae and Kaiser Wilhelm shafts in Clausthal-Zellerfeld . Upper Harz History and Museum Association, Clausthal-Zellerfeld 1984.
- Torsten Schröpfer: Treasure trove: Interesting facts about the West Harz mining and metallurgy (= series of publications by the Upper Harz History and Museum Association Clausthal-Zellerfeld ). 1st edition. Pieper, Clausthal-Zellerfeld 2000, ISBN 3-923605-08-0 .
- Herbert Sperling, Dieter Stoppel: Course map of the Upper Harz . Swiss beard, Stuttgart 1981.
Web links
- Ottiliae shaft in Clausthal-Zellerfeld. In: Industrial Culture Photography and History. Retrieved September 13, 2014 .
- Ottiliaeschacht slope. In: grabenwaerter.de. Retrieved August 15, 2017 .
Individual evidence
- ^ Preussag: Permit applications for the Upper Harz Water Usage Law (former Upper Harz Water Regale) , Berlin 1964, unpublished.
- ↑ written information from the last Preussag mine director
- ↑ Shooting of "The Monuments Men" at Clausthaler mine continued. (No longer available online.) In: Goslarsche Zeitung. Formerly in the original ; Retrieved May 1, 2013 . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
