Thiederhall potash plant
| Thiederhall union | |||
|---|---|---|---|
| General information about the mine | |||
 |
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| other names | Alkali works Ronnenberg III, branch Thiede | ||
| Mining technology | Civil engineering / solution | ||
| Information about the mining company | |||
| Operating company | Alkaliwerke Ronnenberg AG | ||
| Employees | 680 | ||
| Start of operation | 1872 | ||
| End of operation | 1924 | ||
| Successor use | Underground landfill | ||
| Funded raw materials | |||
| Degradation of | Potash salt, rock salt | ||
| Greatest depth | 625 m | ||
| Geographical location | |||
| Coordinates | 52 ° 10 '31.3 " N , 10 ° 29' 33.1" E | ||
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| Location | Kalischachtweg, 38239 Salzgitter | ||
| local community | Salzgitter | ||
| Independent city ( NUTS3 ) | Salzgitter | ||
| country | State of Lower Saxony | ||
| Country | Germany | ||
| District | Peine-Salzgitter-Revier, North Hanover Potash District | ||
The Thiederhall potash plant was a mining company for potash salts in today's Salzgitter district of Thiede . It was the first potash plant in the Duchy of Braunschweig .
geology
The potash salt of the Thieder salt dome originated in the Zechstein and belongs to the Staßfurt series (Z2). Its main rocks are carnallitite and hard salt .
history
Exploration (1872–1885)
In 1872, spurred on by the upswing of the Wilhelminian era, the Thiederhall drilling company drilled 16 exploratory boreholes south of Thiede, through which a minable potash deposit could be identified at a depth of just 100 m . The drilling starting point was chosen because of the gypsum mining in Röverschen Bruch , which had been going on since the 18th century , as the gypsum deposits were thought to be the gypsum dome of a salt dome . The Thiederhall drilling company then initially proposed a 180-hectare mine field and subsequently further fields with a total of 1100 hectares (“six maximum fields”) as well as a 180-hectare solmutation field in the districts of Thiede, Fümmelse and Groß-Stöckheim by 1880 . However, there was no further activity until 1885.
Years of operation (1885-1924)
In 1885, which was drilling company Thiederhall in the union Thiederhall converted and the depths of the first shaft (later Thiederhall I started). The shaft was designed as a round shaft with a diameter of 2.85 (upper part) and 3.25 m (lower part) and was sunk to the final depth of 500 m by 1891, when the Thiederhall union joined the potash syndicate . In 1892, the following year, the capital raising union was converted into the Thiederhall public limited company. A chlorinated potassium factory was built to process the extracted crude salt , and a salt works for the production of table salt was added in 1896 and a potassium sulfate factory in 1900. In addition to these two main products, magnesium chloride, kieserite and potash fertilizers were also produced, and unprocessed potash salt was also sold. The rail connection to Thiede station on the Braunschweig – Derneburg railway line, completed around 1892/93, was used to transport the products away .
In 1901, the sinking of another shaft was started, which was supposed to create the second escape route for the workforce, as prescribed by the mining authorities. Here, planned the Thiederhall AG, their work to a double pit strengthen and put the new shaft ( Thiederhall Ia ) so far west of Thiederhall I to. In addition to meeting the requirements of the mountain police, the Thiederhall Ia plant management also hoped for further information , but although another potash store of lower quality was opened in 1904, the supply situation remained unsatisfactory. When it was realized that the shaft was outside the salt dome, the sinking work was stopped at 383 m. However, it was not backfilled , but equipped with a service facility and in 1909 connected to the mine building at the -300 m level in order to improve weather management . According to Slotta , the shaft did not meet the requirements of the mining authorities and was not approved by them.
In 1912, Thiederhall AG began to dig a third shaft, Thiederhall II , which should open up the recently discovered eastern camp. This round shaft with a diameter of 5.5 m reached its final depth of 625 m ( Slotta : 615 m) in 1916 and was expanded to become the new main shaft of the plant. He received a half-timbered double gantry strut frame with two independent conveyor systems. On the grounds of Thiederhall II apart from mining machine houses an administrative building and one was Waschkaue built, the processing of the crude salt still took over the factory on pit I. With the commissioning of Thiederhall II has been promoting set to slot I; this was subsequently only used as a weather shaft .
The alkali plants Ronnenberg AG bought the Thiederhall AG in 1918, the shareholders received a Thiederhall shares with dividend a share Ronnenberg-half dividend; from now on the Thiederhall potash plant was called "Alkaliwerke Ronnenberg III, Thiede branch".
Closure (1924–1925)
During the inflationary period , a process of concentration began in potash mining, to which Thiederhall also fell victim. In 1924 the company was closed and the 300-man workforce was dismissed. By 1925 the Thiederhall I / II shafts were filled and the daytime facilities largely demolished.
Social impact
The plant was very committed to its workforce. Due to the flourishing potash mining, the population of Thiedes rose sharply. That is why Thiederhall AG built numerous residential buildings in Thiede. In 1891 a factory settlement, the Fümmelse colony , with 18 semi-detached houses was created for the workforce .
In order to provide social security for the workforce, a company health insurance fund had existed since 1891, which was converted into a miners' union in 1894.
Reuse
After the closure in 1924/25, the entrepreneur Wilhelm Nowak founded a canning factory on the grounds of Thiederhall I. After this factory was closed, two more canning factories and various vegetable and fruit processing companies followed. Parts of the area were also used as a sports field by local clubs. At the end of 1969/70 the last of these factories was closed and the sports clubs received new sports facilities in other places. Even today (2011) part of the site is used by various industrial companies, around a third of the former Thiederhall factory area has been converted into a residential area.
In 1926 the diocese of Hildesheim bought the former inspector's house (Thiederhall 5), in this house (called Joseph-Müller-Haus from 1946 ) the Catholic chapel of St. Georg existed until 2004 .
Since the re-routing of the Braunschweig-Derneburg railway line in 1938, it has cut the former factory premises diagonally.
From 1978 to 1990 the VW plant used the cavities of the mine to store production residues (sludge) via a borehole near Thiederhall II . In 2009 Thiederhall Ia was filled with gravel.
photos
Fümmelse Colony
Management villa of the Thiederhall potash plant
Last building of the potassium chlorine factory on the Thiederhall I site (brick building with pitched roof)
literature
- Mining in Salzgitter . The history of mining and the life of miners from the beginning to the present. In: Office for History, Culture and Homeland Preservation of the City of Salzgitter (Ed.): Contributions to City History . 1st edition. tape 13 . Appelhans, Salzgitter 1997, ISBN 3-930292-05-X , chap. 20 , p. 420 .
- Rainer Slotta : Technical monuments in the Federal Republic of Germany . In: Publications from the German Mining Museum . tape 3 : The Potash and Rock Salt Industry, No. 18 . German Mining Museum, Bochum 1980, ISBN 3-921533-16-3 , p. 780 .
- Hartmut Alder: Chronicle of Thiede . Waisenhaus Druckerei GmbH Braunschweig, Salzgitter 1991, p. 219–226 (Thiederhall potash mine).
Web links
- Thieder Schützengesellschaft loses Schützenhaus to canning factory ( Memento from November 30, 2009 in the Internet Archive )
- Thiede from 1913 e. V.
- Thiederhall is under observation. Retrieved March 16, 2018 .
- Lars Baumgarten: The potash u. Rock salt pits in Germany - 4.14 Tiederhall. In: lars-baumgarten.de. Retrieved April 21, 2018 .
Individual evidence
- ^ Mining in Salzgitter . The history of mining and the life of miners from the beginning to the present. In: Office for History, Culture and Homeland Preservation of the City of Salzgitter (Ed.): Contributions to City History . 1st edition. tape 13 . Appelhans, Salzgitter 1997, ISBN 3-930292-05-X , chap. 20 , p. 24 .
- ↑ Planning approval decision for the construction and operation of the Konrad mine in Salzgitter. Lower Saxony Ministry of the Environment, Hanover 2002 ( online ), p. BII-17 (p. 281 in PDF)
- ↑ a b Rainer Slotta: Technical monuments in the Federal Republic of Germany . Volume 3: The Potash and Rock Salt Industry . In: Publications from the German Mining Museum . No. 18, German Mining Museum, Bochum 1980, ISBN 3-921533-16-3 , p. 639
- ↑ The history of the K + S Group, p. 2 ( Memento from October 31, 2015 in the Internet Archive ) (PDF; 2.8 MB)
- ↑ Malte Schumacher, Manfred Grieger: Water, Soil, Air ; Contributions to the environmental history of the Volkswagen plant in Wolfsburg, issue 5 (PDF; 7.3 MB)
- ↑ Bundesdrucksache 10/887, Underground storage of hazardous waste, January 18, 1984 . (PDF; 208 kB)
- ↑ Only a few trucks still deliver to Mariaglück . ( Memento from December 3, 2009 in the Internet Archive ) In: Cellesche Zeitung
- ↑ newsclick.de: 880 trucks have to be called up through the eye of a needle on March 20, 2009
