EP0971170A2 - Verfahren zur Entwässerung von Asche - Google Patents
Verfahren zur Entwässerung von Asche Download PDFInfo
- Publication number
- EP0971170A2 EP0971170A2 EP99112623A EP99112623A EP0971170A2 EP 0971170 A2 EP0971170 A2 EP 0971170A2 EP 99112623 A EP99112623 A EP 99112623A EP 99112623 A EP99112623 A EP 99112623A EP 0971170 A2 EP0971170 A2 EP 0971170A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- wet
- ashes
- ash
- water
- cyclone
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/02—Apparatus for removing ash, clinker, or slag from ash-pits, e.g. by employing trucks or conveyors, by employing suction devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/26—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by reciprocating or oscillating conveyors propelling materials over stationary surfaces; with movement performed by reciprocating or oscillating shelves, sieves, or trays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2700/00—Ash removal, handling and treatment means; Ash and slag handling in pulverulent fuel furnaces; Ash removal means for incinerators
- F23J2700/001—Ash removal, handling and treatment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
- F23J2900/01005—Mixing water to ash
Definitions
- the invention relates to a method for dewatering Ash that comes from burning coal in dust a coal dust combustion occurs, according to the preamble of Claim 1.
- the invention is based, which in a Coal dust firing and cooled in a water bath Effective drainage of ashes.
- Vibration drainers are e.g. B. from DE-OS 28 56 431 and DE-PS 30 13 668 known per se. So far, these vibratory drainage systems have been used for the dewatering, sieving and cleaning of sands. It was surprisingly found that the special ashes from a low- x coal dust burner can be dewatered to such an extent with the aid of such an oscillating dewatering system that the previously encountered difficulty could be effectively eliminated.
- the coal dust combustion is operated in such a way that the content of nitrogen oxides in the flue gas is as low as possible.
- the raw coal is largely ground and on the other hand, a combustion chamber temperature in the combustion chamber 1 complied with that below the melting point of that in the coal contained ashes.
- the burning of coal The resulting ash falls fine-grained and dry means not melted on.
- the ash reaches the combustion chamber 1 according to FIG Cooling in a wet handler 2.
- the wet handler 2 exists from a trough 3 filled with extinguishing water, the one horizontal and a rising part.
- the Wet handler 2 is with a water inlet 4, an overflow 5 and an emptying line 6.
- For sealing against the outside atmosphere is the lower part of the walls of the Combustion chamber 1 extended by an immersion piece 7, which in the Immersed water bath inside the wet handkerchief 2.
- a scraper chain conveyor 8 runs within the wet handler 2 around.
- This scraper chain conveyor 8 carries the in the water bath chilled ash over a chute 9 at the end of the slope rising part of the wet handbag 2.
- the carried out Ash is arranged from a below the chute 9
- Inclined conveyor 10 conveyed to an ash silo 11.
- the Feeder can also be omitted, and the ashes directly in the ash silo 11 are promoted.
- the ash silo 11 is with provided a discharge member 12 through which the ash silo 11 a conveyor belt 13 or a transport vehicle is emptied.
- a swingable Belong to the basic structure of the oscillating drainage 14 a swingable, provided with a swing drive 15 Sieve box 16 in which a sieve plate 17 is arranged.
- the Screen box 16 has one on one end face Ejector 18 for the dewatered material. In the field of the other end is located above the sieve plate 17 a feed device 19 for the wet ash.
- the dewatered ash is the discharge device 18 from the Vibration drainer 14 discharged and arrives at Conveyor belt 26, the z. B. promotes in a silo 27.
- the Ashes show up in the vibratory drainage system 14 after the treatment such a water content that it is easy can be promoted and stored temporarily.
- the dewatered ash is characterized by a uniform water content from the further processing of the Ashes relieved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
- Saccharide Compounds (AREA)
Abstract
Description
- Fig. 1
- schematisch eine Naßentascheranlage,
- Fig. 2
- einen Schwingentwässerer in einer Naßentascheranlage und
- Fig. 3
- einen Schwingentwässerer an einer anderen Stelle innerhalb einer Naßentascheranlage.
Claims (4)
- Verfahren zur Entwässerung von Asche, die bei der Verbrennung von staubförmiger Kohle in einer Kohlenstaubfeuerung anfällt und nach dem Austrag aus der Kohlenstaubfeuerung in einem mit Wasser gefüllten Naßentascher (2) gekühlt wird, dadurch gekennzeichnet, daß die aus dem Naßentascher (2) ausgetragene Asche auf einen Schwingentwässerer (14) gegeben, dort von dem anhaftenden Wasser befreit und in einen transport- und weiterverarbeitungsfähigen Zustand überführt wird.
- verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Asche unmittelbar nach dem Abwurf aus dem Naßentascher (2) dem Schwingentwässerer (14) zugeführt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Asche nach der Förderung über einen Förderer oder nach einer Zwischenbunkerung in einem Silo dem Schwingentwässerer (14) zugeführt wird.
- Verfahren nach einem der Ansprüche 1 bis unter Verwendung eines mit einem Überlauf (5) versehenen Naßentaschers (2), dadurch gekennzeichnet, daß der Wasserüberlauf des Schwingentwässerers (14) einer Zyklonanlage zugeführt wird, daß der Feststoffaustrag der Zyklonanlage dem Schwingentwässerer (14) zurückgeführt wird und daß der Überlauf (5) des Naßentaschers (2) ebenfalls der Zyklonanlage zugeführt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19830943 | 1998-07-10 | ||
DE19830943A DE19830943B4 (de) | 1998-07-10 | 1998-07-10 | Verfahren zur Entwässerung von Asche |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0971170A2 true EP0971170A2 (de) | 2000-01-12 |
EP0971170A3 EP0971170A3 (de) | 2000-03-01 |
EP0971170B1 EP0971170B1 (de) | 2002-11-27 |
Family
ID=7873613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99112623A Expired - Lifetime EP0971170B1 (de) | 1998-07-10 | 1999-07-02 | Verfahren zur Entwässerung von Asche |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0971170B1 (de) |
AT (1) | ATE228630T1 (de) |
DE (2) | DE19830943B4 (de) |
DK (1) | DK0971170T3 (de) |
ES (1) | ES2188066T3 (de) |
PT (1) | PT971170E (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005048960A1 (de) * | 2005-10-13 | 2007-04-26 | Schauenburg Maschinen- Und Anlagen-Bau Gmbh | Verfahren zum Entwässern eines Asche/Wassergemisches und Entwässerungsanlage |
CN102287838A (zh) * | 2011-08-08 | 2011-12-21 | 鞍钢集团矿业公司 | 重型框链除渣机的除渣箱体 |
CN104162479A (zh) * | 2014-06-12 | 2014-11-26 | 煤炭工业济南设计研究院有限公司 | 一种动筛排矸系统煤泥水处理工艺及处理装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005048959B4 (de) * | 2005-10-13 | 2008-04-10 | Schauenburg Maschinen- Und Anlagen-Bau Gmbh | Verfahren zum Aufbereiten von Asche |
WO2017092777A1 (de) | 2015-12-03 | 2017-06-08 | Kronos International, Inc. | Verfahren und vorrichtung zur verbesserten fest-flüssig-filtration von filterkuchen |
RU191125U1 (ru) * | 2019-03-19 | 2019-07-25 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина" | Устройство для сушки зерна |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2856431A1 (de) | 1978-12-28 | 1980-07-31 | Schauenburg Masch | Anlage zur entwaesserung und entschlaemmung von sanden |
DE3013668A1 (de) | 1980-04-09 | 1981-10-15 | Schauenburg Maschinen- und Anlagen-Bau GmbH, 4330 Mülheim | Schwingsiebmaschine fuer die behandlung von sand |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2325923C2 (de) * | 1970-01-22 | 1982-04-01 | Deutsche Babcock Ag, 4200 Oberhausen | Naßentascher für Kohlenstaubbrennkammern |
DE2812003A1 (de) * | 1978-03-18 | 1979-09-20 | Ver Kesselwerke Ag | Verfahren und vorrichtung zum kontinuierlichen abkuehlen der heissen schlacke bei feuerungs- und verbrennungsanlagen, insbesondere bei abfallverbrennungsanlagen |
CA1145617A (en) * | 1979-11-16 | 1983-05-03 | Combustion Engineering, Inc. | Pretreatment to dewater bottom ash from a stem generator firing solid fuels |
US4503783A (en) * | 1983-07-11 | 1985-03-12 | General Kinematics Corporation | Furnace ash air seal |
DE4041381C1 (en) * | 1990-12-21 | 1992-01-09 | Martin Gmbh Fuer Umwelt- Und Energietechnik, 8000 Muenchen, De | Slag dewatering chute - has water acting as pusher with fitted disbalancing generator |
JPH1038250A (ja) * | 1996-07-24 | 1998-02-13 | Mitsui Eng & Shipbuild Co Ltd | 廃棄物処理装置における熱分解残留物分離装置 |
-
1998
- 1998-07-10 DE DE19830943A patent/DE19830943B4/de not_active Expired - Fee Related
-
1999
- 1999-07-02 AT AT99112623T patent/ATE228630T1/de not_active IP Right Cessation
- 1999-07-02 ES ES99112623T patent/ES2188066T3/es not_active Expired - Lifetime
- 1999-07-02 DE DE59903515T patent/DE59903515D1/de not_active Expired - Lifetime
- 1999-07-02 DK DK99112623T patent/DK0971170T3/da active
- 1999-07-02 PT PT99112623T patent/PT971170E/pt unknown
- 1999-07-02 EP EP99112623A patent/EP0971170B1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2856431A1 (de) | 1978-12-28 | 1980-07-31 | Schauenburg Masch | Anlage zur entwaesserung und entschlaemmung von sanden |
DE3013668A1 (de) | 1980-04-09 | 1981-10-15 | Schauenburg Maschinen- und Anlagen-Bau GmbH, 4330 Mülheim | Schwingsiebmaschine fuer die behandlung von sand |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005048960A1 (de) * | 2005-10-13 | 2007-04-26 | Schauenburg Maschinen- Und Anlagen-Bau Gmbh | Verfahren zum Entwässern eines Asche/Wassergemisches und Entwässerungsanlage |
DE102005048960B4 (de) * | 2005-10-13 | 2007-12-06 | Schauenburg Maschinen- Und Anlagen-Bau Gmbh | Verfahren zum Entwässern eines Asche/Wassergemisches und Entwässerungsanlage |
CN102287838A (zh) * | 2011-08-08 | 2011-12-21 | 鞍钢集团矿业公司 | 重型框链除渣机的除渣箱体 |
CN104162479A (zh) * | 2014-06-12 | 2014-11-26 | 煤炭工业济南设计研究院有限公司 | 一种动筛排矸系统煤泥水处理工艺及处理装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0971170B1 (de) | 2002-11-27 |
ES2188066T3 (es) | 2003-06-16 |
EP0971170A3 (de) | 2000-03-01 |
ATE228630T1 (de) | 2002-12-15 |
PT971170E (pt) | 2003-04-30 |
DE59903515D1 (de) | 2003-01-09 |
DK0971170T3 (da) | 2003-03-10 |
DE19830943B4 (de) | 2010-09-09 |
DE19830943A1 (de) | 2000-01-13 |
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