DE3322539A1 - Process for non-polluting disposal of residual products from coal-fired power stations - Google Patents
Process for non-polluting disposal of residual products from coal-fired power stationsInfo
- Publication number
- DE3322539A1 DE3322539A1 DE19833322539 DE3322539A DE3322539A1 DE 3322539 A1 DE3322539 A1 DE 3322539A1 DE 19833322539 DE19833322539 DE 19833322539 DE 3322539 A DE3322539 A DE 3322539A DE 3322539 A1 DE3322539 A1 DE 3322539A1
- Authority
- DE
- Germany
- Prior art keywords
- coal
- fired power
- caso4
- power stations
- ash
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 8
- 229910052925 anhydrite Inorganic materials 0.000 claims abstract description 10
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000002918 waste heat Substances 0.000 claims abstract description 3
- 239000002956 ash Substances 0.000 claims description 10
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims description 3
- 239000004568 cement Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 239000003546 flue gas Substances 0.000 abstract description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
Description
Beschreibung und Erläuterung zur PatentanmeldungDescription and explanation of the patent application
'Verfahren zum umweltfreundlichen Verbringen von Rückstandsprodukten aus Kohlenkraftwerken' Es ist bekannt, daß Kohlekraftwerke Asche, vorzugsweise Filterasche in Elektrofiltern und CaSO4 naß als Rückstandsprodukte durch die Rauchgasentschwefelung produzieren.'' Process for the environmentally friendly disposal of residue products from coal-fired power plants' It is known that coal-fired power plants produce ash, preferably filter ash in electrostatic precipitators and CaSO4 wet as residue products from flue gas desulphurisation to produce.
Filterasche wird zum großen Teil der Zementindustrie oder der Schwarzdeckenherstellung zugeführt.Filter ash is used to a large extent in the cement industry or in the manufacture of black roofs fed.
Das CaSO4-Gemisch wird feucht den Gipsfabriken zugeführt, um hier zu Betahaibhydrat gebrannt Mit dem Einsatz von Kohle im Kraftwerksbereich und dem Rückgang der Zementproduktion und dem Schwarzdeckenbau ist das Problem der Deponieruria der genannten Rückstände größer geworden, da keine Deponieflächen in ausreichendem HaBe vorhanden sind.The CaSO4 mixture is fed to the gypsum factories in a moist state burned to betahaibhydrate With the use of coal in the power plant area and the The problem of the landfilluria is the decline in cement production and the black ceiling construction of the residues mentioned have become larger, as there are no landfill areas in sufficient quantities Hats are present.
Andererseits werden durch die Kiesgewinnung große Baggerseen freigesetzt, die tunlichst wieder verfüllt werden müssen.On the other hand, large quarry ponds are released by the gravel extraction, which have to be refilled as far as possible.
Das Verfüllungsmaterial, z.B. für den Haum ordrhein-Westfalen, wo mindestens 100 Mio t Kies benötigt werden, steht nicht zur Verfügung; selbst beim totalen Einsatz von Wasch- und Brechbergen ist das Problem der Verfüllung und Wiederrackführung in Ackerland nicht mehr zu gewährleisten.The backfill material, e.g. for the Haum north Rhine-Westphalia, where at least 100 million tonnes of gravel are required is not available; even at The problem of backfilling and recracking is the total use of mountains of washes and breakouts can no longer be guaranteed in arable land.
Aus diesem Grunde wird erfindungsgemä'.ß vorgeschlagen, das Problem 'Entsorgung von Kohlekraftwerken' mit dem Problem des Verfüllens von Baggerseen wirtschaftlich zu kuppeln, indem die Asche aus den Kohlekraftwerken, vorzugsweise im heißen Zustand mit dem feuchten CaS04-Gemisch gemischt - und somit in eine trockene Masse übergeführt wird, die dann in Container übergeben und per Eisenbahn oder Schiff den Baggerseen verklappt oder pneumatisch zugeführt werden kann.For this reason it is proposed according to the invention to solve the problem 'Disposal of coal-fired power stations' with the problem of backfilling quarry ponds economically to couple by removing the ashes from the coal-fired power plants, preferably mixed with the moist CaS04 mixture when hot - and thus into a dry one Mass is transferred, which is then transferred in containers and used by rail or ship can be folded up or fed pneumatically to the quarry ponds.
Selbstverständlich ist der erfindungsgemäße Gedanke zur Durchführung des Verfahrens nicht auf einzelne Verfahrensschritte beschränkt, sondern es sind zahlreiche Abänderungen möglich, ohne j jedoch von dem Grundgedanken abzuweichen, das feuchte CaS04-Produkt mit der vorzugsweise heißen Asche aus den Kraftwerkskesseln - vorzugsweise Elektrofilterasche - zu mischen und in Klapp- oder Fluidfördersystem-Cor;tainer einzufüllen, so daß das Rückstandsprodukt klapptechnisch oder blasfördertechnisch umweltfreundlich zum Verfüllen der Hohlräume genutzt werden kann.It goes without saying that the idea according to the invention is to be implemented of the process are not limited to individual process steps, they are numerous changes are possible without, however, deviating from the basic idea, the moist CaS04 product with the preferably hot ash from the power plant boilers - preferably electrostatic precipitator ash - to be mixed and placed in a folding or fluid conveying system cor; tainer to be filled in, so that the residue product is folded or blown conveyor can be used in an environmentally friendly way to fill the cavities.
Weiter ist es erfindungsgemäß von Vorteil, daß mit der Abwärme vorzugsweise der Kraftwerksabgase und/oder entnommener Wärme aus dem Kraftwerksprozeß das feuchte CaSO4-Gemisch wunschgerecht weiter getrocknet oder sogar bis zum Halbhdrat verarbeitet, mit der Asche gemischt, zum Verfüllen Anwendung findet, wobei hier ebenfalls bei dem Grundgedanken gewährleistet ist, daß die flugfähige Asche aus den l.lektrofiltern bei er windigem Wetter nicht aus dem Bereich der Baggerlöcher die Umwelt beeinträchtigt, sondern durch die Bindefähigkeit des gleichzeitig anfallenden Abfallproduktes CaS04 flugunfähig, jedoch deponiefähig Verwendung findet.It is also advantageous according to the invention that the waste heat is preferably used the power plant exhaust gases and / or extracted heat from the power plant process the moist CaSO4 mixture further dried as required or even processed up to half-hydrated, mixed with the ashes, is used for backfilling, and is also used here the basic idea is that the airworthy ash from the l.lektrofiltern in windy weather does not affect the environment from the area of the dredging holes, but rather through the binding capacity of the waste product CaS04 that occurs at the same time unable to fly, but capable of being used as a depository.
Patentansprüche: Patent claims:
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833322539 DE3322539A1 (en) | 1983-06-23 | 1983-06-23 | Process for non-polluting disposal of residual products from coal-fired power stations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833322539 DE3322539A1 (en) | 1983-06-23 | 1983-06-23 | Process for non-polluting disposal of residual products from coal-fired power stations |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3322539A1 true DE3322539A1 (en) | 1985-01-17 |
| DE3322539C2 DE3322539C2 (en) | 1989-10-19 |
Family
ID=6202130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19833322539 Granted DE3322539A1 (en) | 1983-06-23 | 1983-06-23 | Process for non-polluting disposal of residual products from coal-fired power stations |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3322539A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2803764A1 (en) * | 1978-01-28 | 1979-08-16 | Saarbergwerke Ag | Utilising fly ash and calcium sulphate obtd. from flue gas - of coal burning furnace desulphurisation units, by heating aq. suspension to form anhydrite, and casting into bricks, etc. |
| DE2925882B1 (en) * | 1979-06-27 | 1980-08-21 | Guenther Dr Heide | Method and device for the harmless disposal of ash containing sulphate |
| DE2906230A1 (en) * | 1979-02-17 | 1980-08-28 | Steag Ag | Disposal of residue obtd. from waste gas washing plants - where residue is calcined to form beta calcium sulphate hemi:hydrate employed to reinforce tunnels in underground mines |
| DE3113714A1 (en) * | 1981-03-14 | 1982-11-25 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | Dam-building materials for underground mining |
| DE3126200A1 (en) * | 1981-07-03 | 1983-01-20 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | Process for removing residual products from waste incineration systems |
-
1983
- 1983-06-23 DE DE19833322539 patent/DE3322539A1/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2803764A1 (en) * | 1978-01-28 | 1979-08-16 | Saarbergwerke Ag | Utilising fly ash and calcium sulphate obtd. from flue gas - of coal burning furnace desulphurisation units, by heating aq. suspension to form anhydrite, and casting into bricks, etc. |
| DE2906230A1 (en) * | 1979-02-17 | 1980-08-28 | Steag Ag | Disposal of residue obtd. from waste gas washing plants - where residue is calcined to form beta calcium sulphate hemi:hydrate employed to reinforce tunnels in underground mines |
| DE2925882B1 (en) * | 1979-06-27 | 1980-08-21 | Guenther Dr Heide | Method and device for the harmless disposal of ash containing sulphate |
| DE3113714A1 (en) * | 1981-03-14 | 1982-11-25 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | Dam-building materials for underground mining |
| DE3126200A1 (en) * | 1981-07-03 | 1983-01-20 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | Process for removing residual products from waste incineration systems |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3322539C2 (en) | 1989-10-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8105 | Search report available | ||
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8339 | Ceased/non-payment of the annual fee |