Nochten opencast mine

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Nochten opencast mine
General information about the mine
Opencast mine Nochten.JPG
View over the open pit to the Boxberg power plant (2009)
Mining technology Open pit
Funding / year (2012) 19 million t
Information about the mining company
Operating company LEAG
Start of operation 1960
End of operation approx. 2045 (with approved expansion)
Funded raw materials
Degradation of Brown coal / brown coal
Brown coal

Seam name

1. Lusatian seam (upper seam)
Mightiness 3 m
Greatest depth 20-40 m
Brown coal
Degradation of Brown coal

Seam name

2. Lusatian seam (main seam)
Mightiness 12 m
Greatest depth 65-100 m
Geographical location
Coordinates 51 ° 27 '48.7 "  N , 14 ° 34' 17.6"  E Coordinates: 51 ° 27 '48.7 "  N , 14 ° 34' 17.6"  E
Nochten opencast mine (Saxony)
Nochten opencast mine
Location Nochten opencast mine
Location Mill rose
local community Loop , Trebendorf , Boxberg / OL , Weißwasser / Oberlausitz
District ( NUTS3 ) Goerlitz district
country Free State of Saxony
Country Germany
District Lusatian lignite mining area

The Nochten opencast mine ( Wochožanska jama in Upper Sorbian ) is an open-cast lignite mine in northern Upper Lusatia , operated by Lausitz Energie Bergbau AG (LEAG). Up to 18 million tons of lignite are mined in the Nochten open-cast mine every year. The calorific value of lignite is 8,750 kJ / kg; it contains about 55.5% water, 0.5% sulfur and 5.0% ash .

geology

The 1st and 2nd Lusatian seams (MFK - Miocene seam complex ) are covered by a thick covering layer of sands and silts from the time of the higher Middle Miocene . That is why seven cubic meters of overburden have to be moved for one ton of lignite .

geography

Aerial photo of the open pit mine (2016) with Weißwasser (center left) as well as the daytime facilities and the village of Mühlrose (both below left)
View over the recultivation areas near Weißwasser to the Boxberg power plant

The opencast mine is located in the northeast of the Free State of Saxony in the Sorbian settlement area . Most of the pre-mining areas in the Muskauer Heide are heather forests with a high proportion of pine , settlement areas are mostly in the peripheral areas. In the west, the open-cast mine is bounded by the Spree , in the south it extends to the eponymous place Nochten and in the east to the city of Weißwasser . The Nochten open-cast mine divides the Upper Lusatia military training area in two.

history

Panorama over the Nochten opencast mine (2013)

In 1960 the drainage of the mining field began. The exploration took place in 1968, and Mühlrose was relocated for the first time in 1966 . Due to the increasing energy demand in the GDR and the fact that lignite was the only raw material available in large quantities, the production capacities and, in parallel, the output of the Boxberg power plant were constantly increased. For this reason, an F60 overburden conveyor bridge was used from 1974 . In 1979 the church village of Tzschelln had to give way to the opencast mine. In the mining area approved in 1994, around 70 residents from Rohne and Mulkwitz as well as around 180 in the Trebendorfer scattered settlement Hinterberg and the Mühlroser extensions (Am Damm and Kohlenbahnweg) are affected by resettlement, in some cases this has already taken place. In addition, the Weißwasser primeval forest and the former stately zoo are being dredged over.

At the end of 2006, the previous opencast mine owner, Vattenfall Europe Mining, applied to the Regional Planning Association of Upper Lusatia-Lower Silesia to claim the priority area, which, if approved, provides for partial over-dredging of Klein Trebendorf and Runde and complete over-dredging of Rohne and Mulkwitz. This goes hand in hand with the resettlement of all 1700 inhabitants from Klein Trebendorf, Mulkwitz, Rohne, Mühlrose and from Runde south of the Berlin – Görlitz railway line . The decision on the permit was postponed several times due to doubts about the necessity of the mine expansion. On October 1, 2013, the regional planning association initially approved the brown coal statute. On March 5, 2014, the Saxon Ministry of the Interior passed the statute. Lignite opponents announced legal action against the plan. By Vattenfall's intention to German brown coal division to sell, it came to a stop of resettlement in the now commonly known as "Nochten II" designated priority area without the inhabitants were informed that the use of the priority area (and thus the relocation) will be prosecuted or not . After the lignite division was taken over by Czech investors and transferred to LEAG , it is still unclear for the municipalities (as of December 2016) how the resettlement will proceed, especially since the resettlement of Klein Trebendorf was originally supposed to be completed in 2020. This is associated with uncertainty among the residents concerned, as investments have been postponed for years and funding, for example for the replacement of sewage pits that are no longer approved, are not approved as long as the approval for the use of the priority area exists.

technology

In the Nochten opencast mine, various mining equipment and techniques are used to excavate and extract the raw lignite. Here are used:

Devices in pre-cut operation

Bucket wheel excavator 1510 SRs 6300 at the demolition edge (2007)

Devices in bridge operation

Conveyor bridge F60 No. 33

Equipment in the mine

  • Bucket chain excavator 340 ERs 710 (Oberflöz)
  • Bucket ladder excavator 360 ERs 710
  • Bucket chain excavator 361 ERs 710
  • Bucket wheel excavator 1531 SRs 1301
  • Bucket wheel excavator 1535 SRs 1301

Equipment on the coal storage area (together with Reichwalde opencast mine)

  • Combined pouring and shoveling device 1815 KSs 8800
  • Combined shovel and shovel device 1825 KSs 12000
  • Reloading device 2003 RE 1800
  • Reclaimer 2004 RE 1800

Other large devices

  • Weapon 2001 A2s 1120 ( gypsum landfill)

economy

The Nochten opencast mine is the main supplier for the Boxberg power plant and the Schwarze Pump briquette factory .

See also

Web links

Commons : Nochten open-cast mine  - Collection of images, videos and audio files

Individual evidence

  1. ↑ Nochten opencast lignite mine (PDF 479 kB) Vattenfall Europe Mining AG, 2012
  2. ↑ W. Pälchen / H. Walter (Ed.): Geology of Saxony. Geological structure and history of development . Stuttgart (Schweizerbart) 2008, pp. 399–400
  3. ^ Ministry of the Interior approves updating of the Nochten lignite plan with provisions. Saxon State Chancellery, March 5, 2014, accessed April 11, 2014 .
  4. ↑ Gabi Nitsche: New owner should decide on Nochten II: Vattenfall pulls the rip cord / 1700 resettlers are in the air. In: Lausitzer Rundschau , regional edition Weißwasser. June 27, 2015, accessed October 18, 2015 .
  5. ↑ Nochten opencast mine: Devices. In: Ostkohle.de - the brown coal in the east. Retrieved April 11, 2014 .
  6. ↑ Nochten / Reichwalde opencast mine. December 14, 2012, archived from the original on January 25, 2013 ; Retrieved April 11, 2014 .