FI90317C - Menetelmä kupoliuuneissa kertyvien metallihiukkasia sisältävien pölyjen rikastamiseksi - Google Patents
Menetelmä kupoliuuneissa kertyvien metallihiukkasia sisältävien pölyjen rikastamiseksi Download PDFInfo
- Publication number
- FI90317C FI90317C FI900634A FI900634A FI90317C FI 90317 C FI90317 C FI 90317C FI 900634 A FI900634 A FI 900634A FI 900634 A FI900634 A FI 900634A FI 90317 C FI90317 C FI 90317C
- Authority
- FI
- Finland
- Prior art keywords
- dust particles
- metal
- dome
- poles
- enriching
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 13
- 239000000428 dust Substances 0.000 title description 3
- 239000002245 particle Substances 0.000 title description 3
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 239000002923 metal particle Substances 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims 1
- 150000003077 polyols Chemical class 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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 specially adapted for furnaces of these types
- F27B1/18—Arrangements of dust collectors
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S75/00—Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
- Y10S75/961—Treating flue dust to obtain metal other than by consolidation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Filtering Materials (AREA)
Description
9031 7 i
Menetelma kupoliuuneissa kertyvien metallihiukkasia sisåltå-vien pdlyjen rikastamiseksi - Forfarande for anrikning av i kupolugnar forsamlande metallpartiklar innehållande damm 5
Esilla oleva keksintd koskee menetelmaa kupoliuuneissa kertyvien metalleja ja niiden oksideja sisåltåvien polyjen rikastamiseksi, jolloin syntyvåt polyt poistetaan suodatin-laitteen avulla.
10
Kuilu-uunit, erityisesti kupoliuunit ovat olleet jo kauan tunnettuja valuraudan sulattamisessa. Talloin sulatetaan metallinen panos lisaåmalla energiantuottajaa, jolloin raakarauta, kiertomateriaali ja romu paasevat vaihtelevina 15 maåråosuuksina panokseen.
Tassa sulatusprosessissa hdyrystyvåt erilaiset metallit, joita sisåltyy romuosuuteen, kuten esim. sinkki, kadmium, lyijy jne. Ilman puhtaanapitSmisen puitteissa on asetettu 20 ankaria vaatimuksia kupoliuunin kaasujen polynpoistolle niin, etta syntyviå kaasumaisia metallihiukkasia ei enåå saa påastaa ulkoilmaan, vaan ne on kerattava kupoliuunin jalkeen jarjestetylla suodatinlaitteella. Suodattimeen keraantyneet metalliset polyt on tMhan saakka kåsitelty 25 erilaisilla tavoilla siten, etta ne on saatu varastoitaviksi ja niista on voitu nåin talla tavoin huolehtia.
Esilla olevan keksinnon tarkoituksena on kayttMa taloudelli-sesti uudelleen ne metalliset aineosuudet, jotka ovat keray-. 30 tyneet kupoliuunin suodatinlaitteeseen, jotta valtetaan ymparistoa kuormittava ja kustannuksia aiheuttava jåtteen-sailytys.
Tama tehtava ratkaistaan keksinnon mukaisesti siten, etta 35 kupoliuunissa hoyrystyvSt metallit kerMtaan oksidien muodos-sa suodattimeen ja syotetaan uudestaan kupoliuunin poltto-prosessiin kunnes suodatinpolyyn on syntynyt ennalta måårat-ty hyodynnettavå metalliainesten pitoisuus.
Menetelmån muut edulliset tunnusmerkit ilmenevåt epaitsenai- sistå patenttivaatimuksista.
2 90317 5 Kupoliuunin suodatinlaitteeseen kerååntyvåt metalliset polyt sisåltMvåt osittain ymparistolle vahingollisia hiukkasia. Taman vuoksi niista on huolehdittava. Naiden ymparistoa kuormittavien oksidien syntyminen on johdettavissa siitå, etta polttoprosessiin johdetaan suhteellisen suuri romuosuus 10 autosektorilta tulevina levypaketteina ja romuttamoromua, jotka tunnetusti sisåltåvåt suhteellisen suuren osuuden sinkkia ja muuta.
Jos kupoliuunin polttoprosessiin tuodaan sinkkioksidia 15 sisaltåvåå suodatinpolya, pelkistyy sinkkioksidi aluksi polttovyohykkeesså låmpotilojen 1 500°C ja 1 600°C valillå ja nousee kaasumaisena kupoliuunissa ylospain ja hapettuu siella niin, etta muodostuu uudestaan sinkkioksidia. Tassa muodossa keratåan yhdiste suodattimeen. Jos tåta menettelya 20 toistetaan useampia kertoja, voidaan suodattimessa polyt rikastaa sinkilla niin pitkålle, etta sinkin uudelleen erottaminen suodatinpolysta on mahdollista. Tama tilanne on normaalisti alueella 10-95 paino-% sinkkia.
25 Esitetty menetelma muodostaa kaksi etua, yhden edun kupoli-uunilaitoksen kayttajaile ja toisen edun ymparistolle. Polyjen rikastaminen nimittain saastaa jåtteen sailytykselta ja se on taloudellisesti uudelleen hyodynnettavissa.
Claims (5)
1. Menetelmå kupoliuuneissa syntyvien polyjen ja niiden sisåltåmien metallien ja/tai nåiden oksidien rikastamiseksi, jolloin polyt keråtåån jårjestelmåån sisåltyvållå suodatin- 5 laitteella, tunnettu siitå, ettå metallipitoiset polyt tuo-daan uudelleen kupoliuuniin, kunnes saavutetaan metallien ja/tai niiden oksidien ennalta mååråtty pitoisuus.
2. Patenttivaatimuksen 1 mukainen menetelmå, tunnettu sii-10 tå, ettå suodattimista saadut metallipitoiset polyt syote- tåån suodatinlaitteesta kupoliuunin polttovyohykkeeseen.
3. Patenttivaatimuksen 2 mukainen menetelmå, tunnettu siitå, ettå metallipitoiset polyt syotetåån suutinlaitteilla 15 tai puhallusputkilla kupoliuuniin.
3 90317 Patentt. ivaatimukset
4. Patenttivaatimuksen 1 mukainen menetelmå, tunnettu siitå, ettå metallihiukkaspitoisuus asetellaan 10-95 paino- %:iin. 20
5. Jonkin patenttivaatimuksista 1-4 mukainen menetelmå, tunnettu siitå, ettå metallipitoiset polyt rikastetaan sin-killå. 4 90317
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH49289 | 1989-02-09 | ||
| CH492/89A CH677195A5 (fi) | 1989-02-09 | 1989-02-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI900634A0 FI900634A0 (fi) | 1990-02-08 |
| FI90317B FI90317B (fi) | 1993-10-15 |
| FI90317C true FI90317C (fi) | 1994-01-25 |
Family
ID=4188248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI900634A FI90317C (fi) | 1989-02-09 | 1990-02-08 | Menetelmä kupoliuuneissa kertyvien metallihiukkasia sisältävien pölyjen rikastamiseksi |
Country Status (24)
| Country | Link |
|---|---|
| US (1) | US5108496A (fi) |
| JP (1) | JPH02263088A (fi) |
| AT (1) | AT394212B (fi) |
| AU (1) | AU625605B2 (fi) |
| BE (1) | BE1003205A3 (fi) |
| BR (1) | BR9000572A (fi) |
| CA (1) | CA2008046C (fi) |
| CH (1) | CH677195A5 (fi) |
| CS (1) | CS65590A2 (fi) |
| DD (1) | DD292071A5 (fi) |
| DE (1) | DE3942902A1 (fi) |
| ES (1) | ES2023535A6 (fi) |
| FI (1) | FI90317C (fi) |
| FR (1) | FR2642826B1 (fi) |
| GB (1) | GB2228071B (fi) |
| HU (1) | HU900138D0 (fi) |
| IT (1) | IT1238615B (fi) |
| NL (1) | NL9000051A (fi) |
| NO (1) | NO175986C (fi) |
| PL (1) | PL166449B1 (fi) |
| RU (1) | RU1804585C (fi) |
| SE (1) | SE507268C2 (fi) |
| YU (1) | YU1390A (fi) |
| ZA (1) | ZA90633B (fi) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4109214A1 (de) * | 1991-03-21 | 1992-09-24 | Linde Ag | Verfahren zum betreiben eines kupolofens |
| DE4123626A1 (de) * | 1991-07-17 | 1993-01-21 | Intercept Ag | Verfahren zur metallurgischen aufarbeitung von huettenreststoffen |
| JPH05195094A (ja) * | 1992-01-23 | 1993-08-03 | Nippon Steel Corp | 含Ｚｎ製鋼ダスト中のＺｎの濃縮回収方法 |
| TW360714B (en) * | 1995-10-02 | 1999-06-11 | Nippon Kokan Kk | Scrap melting method |
| BR9702154A (pt) * | 1996-03-27 | 1999-07-20 | Fischer Georg Disa Eng Ag | Processo para recuperação e eliminação de resíduos produzidos no forno de cúpula |
| AT405528B (de) * | 1996-07-10 | 1999-09-27 | Voest Alpine Ind Anlagen | Verfahren zum verwerten von bei metallurgischen prozessen anfallenden stäuben |
| DE19708376C1 (de) * | 1997-03-01 | 1998-07-02 | Gasteier & Bilke Verfahrenstec | Verwendung eines Briketts aus Abfallmaterialien als Zuschlagstoff für Schmelzöfen einer Eisengießerei |
| US5785737A (en) * | 1997-04-08 | 1998-07-28 | Bethlehem Steel Corporation | Method for recycling iron bearing sludges in a steelmaking operation |
| ATE216733T1 (de) * | 1997-09-30 | 2002-05-15 | Voest Alpine Stahl Donawitz | Pyrometallurgisches verfahren und vorrichtung zur abtrennung von zink und/oder kadmium und blei aus hüttenwerkabfallstoffen |
| SE518531C2 (sv) * | 2000-05-05 | 2002-10-22 | Aga Ab | Sätt för återvinning av metaller |
| JP5200422B2 (ja) * | 2007-05-26 | 2013-06-05 | Ｊｆｅスチール株式会社 | 竪型スクラップ溶解炉を用いた溶銑製造方法 |
| JP5433994B2 (ja) * | 2008-06-30 | 2014-03-05 | Ｊｆｅスチール株式会社 | 竪型溶解炉を用いた溶銑製造方法 |
| US8377175B2 (en) | 2010-02-26 | 2013-02-19 | Arcelormittal Investigacion Y Desarrollo, S.L. | Apparatus and method for treating exhaust gas |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB755380A (en) * | 1953-08-03 | 1956-08-22 | Wilfried Strik Strikfeldt | Installation for extraction of dust from hot waste gases, in particular waste gases from a cupola, and method of operating such installation |
| US3375069A (en) * | 1965-07-23 | 1968-03-26 | Leonard A. Duval | Process for removing zinc oxide from iron oxide flue dust by the use of spent pickle liquor |
| CA934163A (en) * | 1971-05-03 | 1973-09-25 | W. Gulyas James | Recovering and utilizing dust particles from ore roasting operations |
| JPS522806A (en) * | 1975-06-26 | 1977-01-10 | Kawasaki Steel Corp | Process for treatment of ironmaking dust containing zinc |
| FR2375562A1 (fr) * | 1976-12-24 | 1978-07-21 | Air Ind | Perfectionnements apportes aux installations de fonderie |
| FR2438495A1 (fr) * | 1978-10-09 | 1980-05-09 | Air Ind | Procede de traitement des fumees siderurgiques et installation pour sa mise en oeuvre |
| JPS5735644A (en) * | 1980-08-13 | 1982-02-26 | Toshin Seikou Kk | Recovering method for valuable metal from dust from electric furnace for manufacturing steel |
| FR2497235B1 (fr) * | 1980-12-26 | 1985-07-12 | Usinor | Procede de valorisation des poussieres produites par un four a arc lors de l'elaboration d'acier a partir de ferrailles et installation pour sa mise en oeuvre |
| JPS6053090B2 (ja) * | 1983-07-26 | 1985-11-22 | 住友金属鉱山株式会社 | 鉄鋼ダストからΖｎおよびＰｂを回収する方法 |
| AT380901B (de) * | 1984-09-28 | 1986-07-25 | Voest Alpine Ag | Verfahren zur rueckgewinnung von metallen aus metalloxidhaeltigen huettenstaeuben sowie anlage zur durchfuehrung des verfahrens |
| AT388390B (de) * | 1987-11-12 | 1989-06-12 | Voest Alpine Ag | Verfahren zum entzinken des materialflusses beim betrieb einer anlage zur roheisenerzeugung |
-
1989
- 1989-02-09 CH CH492/89A patent/CH677195A5/de not_active IP Right Cessation
- 1989-12-23 DE DE3942902A patent/DE3942902A1/de active Granted
-
1990
- 1990-01-02 AT AT0000290A patent/AT394212B/de not_active IP Right Cessation
- 1990-01-04 YU YU1390A patent/YU1390A/sh unknown
- 1990-01-09 JP JP2001135A patent/JPH02263088A/ja active Pending
- 1990-01-09 NL NL9000051A patent/NL9000051A/nl not_active Application Discontinuation
- 1990-01-12 ES ES9000075A patent/ES2023535A6/es not_active Expired - Fee Related
- 1990-01-15 HU HU90138A patent/HU900138D0/hu unknown
- 1990-01-18 CA CA002008046A patent/CA2008046C/en not_active Expired - Fee Related
- 1990-01-24 RU SU904742896A patent/RU1804585C/ru active
- 1990-01-25 FR FR909000836A patent/FR2642826B1/fr not_active Expired - Fee Related
- 1990-01-26 IT IT19174A patent/IT1238615B/it active IP Right Grant
- 1990-01-29 ZA ZA90633A patent/ZA90633B/xx unknown
- 1990-01-29 GB GB9001953A patent/GB2228071B/en not_active Expired - Fee Related
- 1990-01-31 AU AU48940/90A patent/AU625605B2/en not_active Ceased
- 1990-02-07 PL PL90283670A patent/PL166449B1/pl unknown
- 1990-02-07 DD DD90337658A patent/DD292071A5/de not_active IP Right Cessation
- 1990-02-07 BE BE9000140A patent/BE1003205A3/fr not_active IP Right Cessation
- 1990-02-08 NO NO900622A patent/NO175986C/no not_active IP Right Cessation
- 1990-02-08 SE SE9000459A patent/SE507268C2/sv not_active IP Right Cessation
- 1990-02-08 BR BR909000572A patent/BR9000572A/pt not_active IP Right Cessation
- 1990-02-08 FI FI900634A patent/FI90317C/fi not_active IP Right Cessation
- 1990-02-09 CS CS90655A patent/CS65590A2/cs unknown
- 1990-02-09 US US07/478,650 patent/US5108496A/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB | Publication of examined application | ||
| MM | Patent lapsed |
Owner name: GEORG FISCHER AKTIENGESELLSCHAFT |