Preussag ballast power plant Ibbenbüren
| Preussag ballast power plant Ibbenbüren | |||
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| location | |||
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| Coordinates | 52 ° 17 '11 " N , 7 ° 44' 27" E | ||
| country |
 Germany
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| Data | |||
| Type | Steam power plant | ||
| Primary energy | Fossil energy | ||
| fuel | Hard coal , dietary fuel | ||
| power | 92 megawatts | ||
| owner | Preussag | ||
| Project start | 1939 | ||
| Start of operations | February 22, 1954 | ||
| Shutdown | January 31, 1985 | ||
| turbine | 2 extraction condensation turbines à 21 MW 1 steam turbine à 50 MW |
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| boiler | 3 boilers of 125 t / h steam 1 boiler of 200 t / h steam Manufacturer: Deutsche Babcock- und Wilcox-Dampfkesselwerke AG |
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| Chimney height | 2 × 80 m | ||
The Preussag ballast power plant Ibbenbüren was a German hard coal power plant in Ibbenbüren in the state of North Rhine-Westphalia . It had an output of 92 megawatts and was operated from 1954 to 1985.
history
The first plans to build a new power plant went back to 1939. With the increased funding of the Ibbenbüren mine in the Tecklenburger Land (on whose site the power plant was located) and the increased amount of ballast coal (sludge and sifter dust ) and the associated high transport costs due to the high ballast (water and ash), a power plant directly next to the Oeynhausen shaft was favored . It was initially planned with 15,000 kW. Initially, this power plant was only supposed to cover the colliery's own requirements for steam and electricity. Construction of the boiler house began as early as 1943. However, the war conditions soon forced the construction to stop. Construction continued in 1950 and a steam boiler with a steam output of 50 t / h was planned to supply the mine with steam. The original planning of a 15 MW power plant was revised due to the interconnection contract concluded with RWE . This was also due to the interest of RWE, which had to replace its old power plant , which was located at Ibbenbüren station.
The new plan
The project now comprised three construction phases. In the first construction stage, two boilers with a steam capacity of 125 t / h each - called boilers 2 and 3 - were built. The first construction stage also included the installation of two 21 MW turbines. This first construction stage went online in 1954. The second phase of construction began in 1953. It comprised boiler 4 with a steam output of 200 t / h and a turbine with an output of 50 MW. This expansion stage was put into operation in 1955. In 1957 the first boiler was converted from 50 t / h steam output to 125 t / h. The third stage of construction comprised the 150 MW Block-A .
Connection to the network
On February 22nd, 1954, the turbo generator 1 was connected to the NIKE network by mine director Busch . This partial completion of the plant was preceded by numerous tests. The first high-pressure boiler was ignited for the first time on January 23 of the same year. From February 3, the turbo generator 1 was run for the first time for test purposes and for drying.
Extended flue gas cleaning
From 1970 to 1973 the flue gas cleaning of the power plant was expanded and improved. Boiler 4 received a new electrostatic precipitator in 1970, boiler 2 and 3 in 1971 and boiler 1 in 1973. The cleaning performance was significantly improved compared to the old filters. A total of DM 4 million was invested in the construction project.
Shutdown
The shutdown was completed as planned on January 31, 1985. The power plant was replaced by the Ibbenbüren power plant to the east , Block B. The colliery was supplied by a mine-owned power plant operating on mine gas . The boiler house was demolished after the shutdown, as were the two chimneys. The turbine hall and the control room have been preserved as a mining museum and can be visited. In some cases, the Ibbenbüren mine continues to use the facilities of the turbine house as an office and workshop.
technology
The power plant had four steam boilers, including boilers 1, 2 and 3 with 125 t / h steam each. A fourth boiler could provide 200 t / h of steam. These boilers were built by the Deutsche Babcock- und Wilcox-Dampfkesselwerke AG in Oberhausen . Due to the various uses of ballast fuels, a ballast content of up to 45% was calculated, of which 30–32% ash and 10–15% water. To make matters worse, the coal was very lean with a total proportion of 8 to 12% volatile substances, which severely impaired the ignitability. The boilers with natural circulation were built as cyclone boilers with melting chamber firing . 90% of the fly ash was separated with electrostatic precipitators.
The two 21 MW extraction turbines from MAN were coupled to the associated AEG generators. These extraction turbines could deliver 60 t / h medium pressure steam for the colliery. The third turbo generator consisted of a 50 MW turbine from AEG, coupled to a hydrogen-cooled AEG generator.
Two wet cooling towers with natural drafts, each 55 m high, were built for condenser cooling. 12,000 m³ / h of cooling water circulated in order to cool down the cooling water warmed up by the condensers.
The operator of the power plant was Preussag .
The power plants are in the immediate vicinity:
- Ibbenbüren power plant , which has been in operation since 1986.
- Former Ibbenbüren Power Plant Unit A , which was in operation from 1967 to 1987 (mostly demolished).
literature
- Hubert Rickelmann , Hans Röhrs : The Ibbenbürener hard coal mining. From the beginning to the present . 2nd, revised edition. Schöningh, Paderborn, Munich, Vienna and Zurich 1987, 350 pages, ISBN 3-506-77224-4 .
Web links
Individual evidence
- ^ IVZ on January 31, 1973: "DM 4 million for environmental protection".
- ↑ https://archiv.ivz-aktuell.de/index4.php?id=12929&pageno=8 Ibbenbürener Volkszeitung on February 23, 1954: "The new power plant has been working since yesterday"; accessed on September 19, 2018
- ^ IVZ on January 31, 1973: "DM 4 million for environmental protection".