Flingern waste incineration plant
| Flingern waste incineration plant | |||
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| Coordinates | 51 ° 13 '22 " N , 6 ° 48' 49" E | ||
| country |
 Germany
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| Data | |||
| Type | Waste incineration plant | ||
| fuel | rubbish | ||
| power | 55 MW (electrical, steam turbine) + 100 MW ( thermal ) district heating via steam line in the neighboring Flingern thermal power station |
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| operator | Stadtwerke Düsseldorf | ||
| Start of operations | 1965 | ||
| Website | https://www.swd-ag.de/ | ||
The Flingern waste incineration plant is a waste incineration plant (MVA) in the Flingern district of Düsseldorf . With the specially developed "roller grate firing system Düsseldorf", it is pioneering work in the field of waste incineration and an essential part of waste disposal in the city of Düsseldorf . The combined heat and power generation of the waste incineration plant provides the base load for supplying downtown Düsseldorf with district heating . To keep the air clean, the MVA has a four-stage system for cleaning the flue gases .
history
With the increase in consumption in the Federal Republic of Germany , so too did municipal waste. Since landfill space was too scarce, incineration tests with Düsseldorf waste were carried out in the only German waste incineration plant in Hamburg , Bern and Lausanne from 1957 - with unsatisfactory results. In 1961, the city of Düsseldorf commissioned Stadtwerke Düsseldorf to build a test facility on the site of the Flingern power station. The Arbeitsgemeinschaft Stadtwerke Düsseldorf, Vereinigte Kesselwerke (VKW Düsseldorf) and Ratinger Dürrwerke developed the so-called roller grate firing for particularly inhomogeneous and difficult to stir solid fuels such as garbage through numerous test series. Today it is known worldwide as "System Düsseldorf" and is used in around half of all waste incineration plants worldwide.
In 1961 it was decided to build the waste incineration plant on Flinger Broich. The approval procedure was carried out by the city of Wuppertal (issued on July 3, 1963), since the city of Düsseldorf would otherwise have issued a permit itself. Construction began in early 1964, and trial operations began in autumn 1965. The steam generated from this is converted into electricity via the steam turbine in the neighboring Flingern power plant and used for district heating .
Over time, the amount of waste increased and the initially four boilers were supplemented by two more boilers. The first boilers were replaced at the end of the 1980s. The plant capacity was increased from 250,000 tons per year to 450,000 tons.
In the mid-1980s, stricter limit values for flue gases made it necessary to install exhaust gas cleaning systems several times . As with the boilers, a new process has also been developed for exhaust gas cleaning. This resulted in the separation of chlorine and sulfur using the "System Düsseldorf" spray adsorption process and the activated coke filter, which was first used in Düsseldorf .
The Flingern's corrosion diagram, which is now the standard tool for avoiding high-temperature corrosion, also emerged from investigations .
Stadtwerke Düsseldorf AG has also owned the facility since 1999.
technology
The Düsseldorf MVA is designed for the incineration of household waste and commercial waste similar to household waste. To ensure this, visual inspections are carried out and random samples are analyzed in the laboratory. A rotary shear with two cutting metal rollers is used to shred bulky waste . The waste reaches the approx. 13,000 cubic meter garbage bunker via six unloading points. Three cranes with a lifting capacity of five tons each mix the garbage by rearranging it and transport it into the boiler via so-called feed shafts. The six boilers work according to the roller grate firing method. The waste is transported from top to bottom through the combustion chamber on six metal rollers arranged in steps. At temperatures of around 1,000 ° Celsius, the waste is incinerated within 50 to 55 minutes. Oil burners are used for ignition. Around 25% of the waste is left over as non-combustible components. This ash is sent to a recycling facility, which uses magnets to separate around 10,000 tons of metals per year. The rest can (crushed and sieved) be used in road construction. The flue gases are cleaned in a four-stage process. In order to avoid polluted wastewater, the Stadtwerke Düsseldorf developed a "quasi-dry process" in which the hot flue gases are sprayed with milk of lime and thus sulfur, chlorine and fluoride hydrogen are bound. The dusty lime compounds and other dusts are separated in the electrostatic precipitator. When filtering with activated coke (alternatively a mixture of sodium bicarbonate and small amounts of activated coke) heavy metals and organic substances are removed. By catalysts are in the last stage of the nitrogen oxides to harmless water vapor and nitrogen degraded. According to the principle of combined heat and power , the heat generated from the combustion is used via a steam pipe in the neighboring Flingern thermal power station to generate electricity and district heating . Around eleven percent of the electricity used in Düsseldorf households and around 20 percent of the district heating requirements in downtown Düsseldorf are covered. The pipe bridge MVA-Kraftwerk Flingern is 800 meters long and consists of two high pressure, one medium pressure, two condensate and one nitrogen pipes. The steam tubes have nominal widths of 300, 250 and 200, at 500 ° C and 90 bar , as well as 350 ° C and 15 bar.
Data
420,000 tons of garbage are delivered to 6 unloading points each year with two unloading stations. 66% of this is mixed municipal waste, 7% bulky waste, 5% street rubbish, 22% commercial waste. The mean waste throughput per incineration line and hour is 12.5 tons, with six lines so a total of 75 tons per hour. 3 tons of ash per line and hour, i.e. 18 tons in total, are left over. The amount of steam per boiler and hour is 40 tons, a total of 240 tons. At 500 ° C steam temperature and 80 bar pressure, 900 million kWh / a are delivered to the thermal power station. 4 flue gas lines, desulphurisation towers, electrostatic precipitators and activated coke filters each clean the flue gases. 18,000 tons of electrostatic precipitator dust and 5,000 tons of used activated coke are produced. The own consumption of electricity is 50 million kWh / a and 1,000 cubic meters of heating oil.
Around 11 percent of the electricity used in Düsseldorf and around 20 percent of the inner-city district heating requirements are covered with energy obtained from waste.
Garbage tourism
Italy has been exporting waste in waves to Germany since 2001 , and between 2001 and 2008 also to the Flingern waste incineration plant. In particular from Naples and the Campania region . It is not only the transport that is generally criticized as unecological here. Regional incineration of municipal waste is required. However, since 2016 it has also been discussed that the cross-border use of disposal capacities could reduce landfilling across Europe and thus the climate-relevant digester gases. The unequal costs also cause displeasure. The costs for the removal of municipal waste and those of the waste incineration plant itself are paid locally by citizens with their fees. The remaining and overcapacities are filled with garbage, e.g. B. from Italy but also from neighboring communities. Often lower disposal fees are charged for this, based on the current market price for waste incineration.
Climate protection
According to the Renewable Energy Sources Act (EEG), 50% of electricity and district heating from waste incineration (biogenic share of waste) apply similarly to renewable energy . The reason is that no primary energy from fossil fuels is used and thus a large part of CO 2 emissions can be saved. In addition, there is no landfill gas with a methane content of approx. 55% by volume . This gas is produced when household waste is dumped. Methane gas is a good 21 times more harmful than CO 2 .
Web links
- Measurements of emissions and incineration conditions at the Düsseldorf-Flingern waste incineration plant for 2014, at www.swd-ag.de
- New dispute about garbage tourism, on www.general-anzeiger-bonn.de
- Generation and gas power plant, section MVA, at www.swd-ag.de
Individual evidence
- ↑ a b c Waste incineration in Düsseldorf for a cleaner city , information brochure from Stadtwerke Düsseldorf, online at www.swd-ag.de ( Memento of the original from September 12, 2016 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked . Please check the original and archive link according to the instructions and then remove this notice. | PDF
- ↑ Exhibition boards from an exhibition in the Flingern waste incineration plant
- ↑ Naples' dirty business with Germany
- ↑ Climate protection through waste imports? - fact sheet
- ↑ Waste from Naples Discount for Mafia rubbish
- ↑ Waste and sewage charges: The front runners in garbage and sewage charges
- ↑ Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
