Kaiserstuhl coking plant
The Kaiserstuhl coking plant (Kaiserstuhl III) was a coking plant in Dortmund . It was put into operation on December 1, 1992 after five years of planning and construction on the grounds of the Westfalenhütte of Thyssen-Krupp -Stahl AG (former owner Hoesch AG ) as the most modern coking plant in Europe. On December 12, 2000 it was shut down after 8 years and 12 days of operation due to the necessary adjustment to the coking plant capacities due to the closure of the Thyssen blast furnaces in Dortmund.
New building
After the amendment of the technical instructions for keeping the air clean (TA Luft) in 1986, the then Ruhrkohle AG took the decision to build a new large coking plant in Dortmund and at the same time to shut down the previously existing Dortmund coking plant Hansa and the coking plant Kaiserstuhl II . The total investment amounted to around DM 1.2 billion, 25% of which went to environmental protection measures.
Dates of the Kaiserstuhl III coking plant
- Mixed bed capacity 56,000 t
- Coal tower capacity 2700 t
- Coking company: a consortium of Didier, Krupp Koppers , Thyssen- Still-Otto, Schalker Eisenhütte
- two coke oven batteries with 60 coke oven chambers each
- Chamber dimensions 7.63 m high, 18 m long, 61 cm wide, 5 cm conicity, 45 cm gas collecting space, 79 m³ usable volume
- Furnace design: underburner regenerative composite furnace, 36 heating flues, twin flue system
- Cooking time 25h at 1330 ° C heating draft temperature
- Pressed ovens: 115 per day, corresponding to 5600 tons of coke per day
- Oven operating machines: coke squeezing machine, filling car, coke transfer machine, hot coke transport car, fire fighting car from the Schalke ironworks
- Dry coke cooling system (KTK): 250 t coke per hour
- Steam generation 120 t / h at 64 bar and 480 ° C
- Products: Coke , raw tar , liquid sulfur , raw benzene , LP gas (low pressure gas) to the smelter and MD gas (medium pressure gas) via the HP gas compression (high pressure gas compression) "Minister Stein" to Ruhrgas AG
- Special feature: biological wastewater treatment
Decommissioning and dismantling
Due to the changes on the customer side, the takeover of Dortmunder Hoesch AG by competitor Krupp and the subsequent merger with Thyssen to ThyssenKrupp , there were no longer any local buyers for your coke product ; ThyssenKrupp relocated all activities in the so-called liquid phases to the Rhine in Duisburg , due to more favorable transport conditions (shipping and port connections).
It was decided to shut down the quite new coking plant , which took place in 2003. The coking plant was sold to the Chinese mining group Yanzhou Coal Mining in Shandong Province and rebuilt near Zaozhuang , as the technical facilities corresponded to the standard of coking technology . The first coke was pressed on June 28, 2006 with very big problems.
In the meantime, the decision to shut down the coking plant after only a short period of operation turned out to be economically questionable: the steel boom in China made it more difficult to get coke for iron smelting on the world market from 2003 onwards. The price of coke rose dramatically, far more than the price of steel.
The dismantling of the coking plant was accompanied by a German film team. The result was the documentary “Losers and Winners”, which was released in 2007 and received several international and German awards. In addition, Stefan Willeke wrote a report about the demolition for Die Zeit , which was awarded the Egon Erwin Kisch Prize in 2005.
On October 28, 2007, at 11:08 a.m., the two remaining 165 meter high chimneys were blown up. Here one of the chimneys did not fall into the prepared bed, but hit the old building stock of the coking plant with a deviation of 70 °.
The 75 meter high coal tower was blown up on August 23, 2014 as the last building on the former site of the coking plant. 180 kg of explosives were placed in approx. 950 boreholes, causing the 9,000 tons of concrete in the building to fall into the prepared fall bed.
Movie
- Losers and Winners. Documentary, Germany, 2006, 96 min., Written and directed: Ulrike Franke, Michael Loeken, production: WDR , filmproduktion loekenfranke, first broadcast: November 13, 2008, film page
Web links
- Die Zeit : "Mr. Mo fetches the factory" , September 23, 2004
- Picture gallery about the dismantling in 2004 on LostAreas
- Video of the demolition of the coal tower on August 23, 2014
Individual evidence
- ↑ Colliery and coking plant had this name [1]
- ↑ Degner, Viktoria: coal tower blown up. This is where the last relic of the Kaiserstuhl coking plant falls from 23 August 2014.
Coordinates: 51 ° 32 ′ 19 ″ N , 7 ° 29 ′ 30 ″ E