EP0828859A1 - Procede pour la recuperaiton et l'elimination des residus produits dans un cubilot - Google Patents
Procede pour la recuperaiton et l'elimination des residus produits dans un cubilotInfo
- Publication number
- EP0828859A1 EP0828859A1 EP97903199A EP97903199A EP0828859A1 EP 0828859 A1 EP0828859 A1 EP 0828859A1 EP 97903199 A EP97903199 A EP 97903199A EP 97903199 A EP97903199 A EP 97903199A EP 0828859 A1 EP0828859 A1 EP 0828859A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cupola
- dust
- wet
- furnace
- disposing
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/18—Arrangements of dust collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Definitions
- the present invention relates to a method for recycling wet residues obtained in the cupola furnace.
- Shaft furnaces especially cupola furnaces, have long been known for melting iron.
- the metallic insert is melted with the addition of energy sources, with pig iron, circuit material and scrap with energy sources being used in varying amounts.
- REPLACEMENT BLA ⁇ solidified pig iron and equipped with scrap, the composition of the latter strongly dependent on its origin and its amount of use on the market price. Accordingly, the composition of the dusts produced in the cupola filter system is different and is by no means always suitable for use in a recirculation process, as is known, for example, from DE 39 42 902.
- a process for the accumulation of dusts occurring in the cupola furnace and the metals and / or oxides contained therein is described, the dusts being captured in the system by means of a filter arrangement and the metal-containing dusts being repeatedly introduced into the cupola furnace, until there is a predetermined concentration of the metals or their oxides.
- the dusts caught in the cupola must be cleaned because of the so-called impurities. This is done either in dry filter systems or by wet washing, usually with the help of a disintegrator.
- the dusts from dry dedusting systems can be reintroduced into the melting zone by sucking in or blowing in as an inexpensive coke substitute.
- this 'experience' allows the metal contents to be increased in areas that make them suitable for economic recovery through multiple recirculation of the dusts.
- ERSATZBLA7T (REGEL26) Efforts to recover the dust from wet gas cleaning in the form of briquettes have not been very successful due to excessive abrasion in the shaft furnaces.
- the invention provides an object to propose that allows an economical and reproducible recovery 'from wet dust in a shaft furnace or cupola furnace a method.
- the figure shows a schematic representation of a cupola furnace 1, from which the dusts produced during the melting process are removed and fed to a disintegrator 2.
- the disintegrator 2 serves as a washing system for cleaning the dusts.
- the sludge obtained can settle in a downstream basin, not shown, which is then fed into a press 3.
- the still wet filter cake obtained in this way is passed into a device for drying 4 the filter cake.
- This can e.g. B. a convex dryer.
- the sludge or the filter cake is dried in the device 4 with hot exhaust gases which are branched off from the system after the combustion chamber 9 and are conveyed into the drying unit by means of a fan at the necessary pressure.
- the resulting mixture of gas and dry dust is then separated in a cyclone 5.
- the dust is transported by a pneumatic transmitter into a silo 7 of the dust reintroduction system and sucked or blown into the cupola furnace via nozzles.
- the gases are returned to the furnace gas system.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
Cette invention concerne un procédé pour la récupération des résidus humides produits dans un cubilot et des métaux qu'il contient, les poussières étant interceptées au moyen d'un dispositif de filtration, caractérisé en ce que les résidus humides sont séchés par les gaz perdus chauds provenant du système et récupérés et/ou transformés en scories par réintroduction dans le cubilot. On élimine ainsi le coût élevé de stockage de déchets nocifs et on utilise de manière optimale des matières utiles disponibles et l'énergie des gaz perdus.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH78996 | 1996-03-27 | ||
CH789/96 | 1996-03-27 | ||
PCT/CH1997/000081 WO1997036012A1 (fr) | 1996-03-27 | 1997-03-03 | Procede pour la recuperaiton et l'elimination des residus produits dans un cubilot |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0828859A1 true EP0828859A1 (fr) | 1998-03-18 |
Family
ID=4195226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97903199A Withdrawn EP0828859A1 (fr) | 1996-03-27 | 1997-03-03 | Procede pour la recuperaiton et l'elimination des residus produits dans un cubilot |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0828859A1 (fr) |
JP (1) | JPH10511142A (fr) |
KR (1) | KR19990022046A (fr) |
AU (1) | AU1764097A (fr) |
BR (1) | BR9702154A (fr) |
CA (1) | CA2223132A1 (fr) |
CZ (1) | CZ369597A3 (fr) |
PL (1) | PL323601A1 (fr) |
RU (1) | RU2148663C1 (fr) |
TW (1) | TW344026B (fr) |
WO (1) | WO1997036012A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102538438A (zh) * | 2010-12-12 | 2012-07-04 | 青岛青力环保设备有限公司 | 一种冲天炉铸造粉尘处理方法 |
JP6770453B2 (ja) * | 2017-02-01 | 2020-10-14 | 三菱重工エンジニアリング株式会社 | 排ガス処理システム |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU67339A1 (fr) * | 1973-04-02 | 1973-06-18 | ||
CH677195A5 (fr) * | 1989-02-09 | 1991-04-30 | Fischer Ag Georg | |
JPH059529A (ja) * | 1991-07-01 | 1993-01-19 | Kawasaki Steel Corp | 製鉄ダストの処理方法 |
JPH05222422A (ja) * | 1992-02-06 | 1993-08-31 | Kawasaki Steel Corp | コークス充填層型溶融還元炉を用いた鉱石の溶融還元方法 |
-
1997
- 1997-03-03 JP JP53389497A patent/JPH10511142A/ja active Pending
- 1997-03-03 BR BR9702154A patent/BR9702154A/pt not_active Application Discontinuation
- 1997-03-03 WO PCT/CH1997/000081 patent/WO1997036012A1/fr not_active Application Discontinuation
- 1997-03-03 AU AU17640/97A patent/AU1764097A/en not_active Abandoned
- 1997-03-03 RU RU97122080A patent/RU2148663C1/ru active
- 1997-03-03 KR KR1019970708525A patent/KR19990022046A/ko not_active Application Discontinuation
- 1997-03-03 CZ CZ973695A patent/CZ369597A3/cs unknown
- 1997-03-03 CA CA 2223132 patent/CA2223132A1/fr not_active Abandoned
- 1997-03-03 EP EP97903199A patent/EP0828859A1/fr not_active Withdrawn
- 1997-03-03 PL PL32360197A patent/PL323601A1/xx unknown
- 1997-03-25 TW TW086103805A patent/TW344026B/zh active
Non-Patent Citations (1)
Title |
---|
See references of WO9736012A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU1764097A (en) | 1997-10-17 |
RU2148663C1 (ru) | 2000-05-10 |
KR19990022046A (ko) | 1999-03-25 |
PL323601A1 (en) | 1998-04-14 |
MX9709179A (es) | 1998-06-28 |
WO1997036012A1 (fr) | 1997-10-02 |
JPH10511142A (ja) | 1998-10-27 |
CA2223132A1 (fr) | 1997-10-02 |
TW344026B (en) | 1998-11-01 |
CZ369597A3 (cs) | 1999-04-14 |
BR9702154A (pt) | 1999-07-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0515792B1 (fr) | Procédé pour le traitement des résidus d'une installation d'incinération de déchets, et installation d'incinération de déchets pour la mise en oeuvre dudit procédé | |
EP0106997B2 (fr) | Procédé de traitement des déchets métalliques et installation pour leur traitement mécanique | |
EP0437679B1 (fr) | Procédé pour le traitement des résidus d'incinérateurs des déchets et incinérateurs pour la mise en oeuvre du procédé | |
EP0372039B1 (fr) | Procede et dispositif de traitement de scories de fours d'incineration de dechets | |
EP0576977B1 (fr) | Procédé pour la réfrigération et la purification de gaz de fumée chauds contenant de la poussière, de la dioxine et d'autres toxines | |
CH686764A5 (de) | Verfahren zur Aufbereitung von festen Rueckstaenden aus Muellverbrennungsanlagen und Vorrichtung zurDurchfuehrung des Verfahrens. | |
DE102008026417A1 (de) | Verfahren und Anlage zur Aufbereitung von kunststoffreichen Abfällen | |
EP0670188B1 (fr) | Procédé pour la fusion simultanée des produits pulvérulents et des cendres en morceaux provenant d'usines d'incinération d'ordures ménagères | |
DE3827086A1 (de) | Verfahren und vorrichtung zur thermischen entkontaminierung von filterstaeuben und anderen reststoffen | |
DE19724860A1 (de) | Verfahren und Vorrichtung zur Aufbereitung einer Shredderleichtfraktion mit Metallteilen | |
DE3942902C2 (fr) | ||
DE3905610C1 (fr) | ||
EP0828859A1 (fr) | Procede pour la recuperaiton et l'elimination des residus produits dans un cubilot | |
AT405294B (de) | Verfahren zum verwerten von eisenhältigen hüttenreststoffen sowie anlage zur durchführung des verfahrens | |
AT406272B (de) | Verfahren zur herstellung von direkt reduziertem eisen, flüssigem roheisen und stahl sowie anlage zur durchführung des verfahrens | |
DE4123028C1 (fr) | ||
DE3716444A1 (de) | Verfahren und anlage zur reinigung von kontaminierten schuettguetern | |
DE4042136A1 (de) | Verfahren zur reinigung von gasen | |
EP0682099A1 (fr) | Procédé et dispositif de traitement de matériaux composites d'emballage et/ou déchets plastiques ainsi que l'utilisation du résidu solide carboné de la pyrolyse | |
DE2407998B2 (de) | Anlage zur Entstaubung der in einem Stahlwerksbetrieb anfallenden Abgase | |
EP0504664A1 (fr) | Dispositif pour broyer sans faire de poussière des pièces en fer brut de gros volume | |
EP0679240A1 (fr) | Procede de retraitement de dechets residuels | |
DE10142825C1 (de) | Verfahren zur Verwertung von mit Fremdstoffen wie Eisen oder Zementbrocken belasteten großformatigen Altholzarten | |
DE102020200571A1 (de) | Vorrichtung und Verfahren zum Betreiben der Vorrichtung | |
DE2300889B2 (de) | Verfahren und Anlage zum Herstellen von weitgehend zinkfreien Agglomeraten aus Abfallstoffen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH DE ES FI FR GB IT LI NL PT SE |
|
17P | Request for examination filed |
Effective date: 19980402 |
|
17Q | First examination report despatched |
Effective date: 19991228 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 20000420 |