DE2625223C3 - Verfahren zur Passivierung von heißen, reaktionsfähigen Metallteilchen, Anwendung des Verfahrens und Vorrichtung zur Durchführung des Verfahrens - Google Patents
Verfahren zur Passivierung von heißen, reaktionsfähigen Metallteilchen, Anwendung des Verfahrens und Vorrichtung zur Durchführung des VerfahrensInfo
- Publication number
- DE2625223C3 DE2625223C3 DE2625223A DE2625223A DE2625223C3 DE 2625223 C3 DE2625223 C3 DE 2625223C3 DE 2625223 A DE2625223 A DE 2625223A DE 2625223 A DE2625223 A DE 2625223A DE 2625223 C3 DE2625223 C3 DE 2625223C3
- Authority
- DE
- Germany
- Prior art keywords
- rollers
- metal
- compacted
- hot
- cutting
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 21
- 230000008569 process Effects 0.000 title claims description 8
- 238000002161 passivation Methods 0.000 title claims description 7
- 239000002923 metal particle Substances 0.000 title claims 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 32
- 239000002184 metal Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 229910052742 iron Inorganic materials 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000010008 shearing Methods 0.000 claims description 7
- 230000001427 coherent effect Effects 0.000 claims 1
- 239000000155 melt Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 12
- 238000005056 compaction Methods 0.000 description 10
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000008188 pellet Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 230000032258 transport Effects 0.000 description 5
- 239000003570 air Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 210000002105 tongue Anatomy 0.000 description 4
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/18—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using profiled rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/148—Agglomerating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
- B30B15/308—Feeding material in particulate or plastic state to moulding presses in a continuous manner, e.g. for roller presses, screw extrusion presses
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0086—Conditioning, transformation of reduced iron ores
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0086—Conditioning, transformation of reduced iron ores
- C21B13/0093—Protecting against oxidation
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Iron (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58418475A | 1975-06-05 | 1975-06-05 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2625223A1 DE2625223A1 (de) | 1976-12-09 |
| DE2625223B2 DE2625223B2 (de) | 1980-07-31 |
| DE2625223C3 true DE2625223C3 (de) | 1981-03-19 |
Family
ID=24336244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2625223A Expired DE2625223C3 (de) | 1975-06-05 | 1976-06-04 | Verfahren zur Passivierung von heißen, reaktionsfähigen Metallteilchen, Anwendung des Verfahrens und Vorrichtung zur Durchführung des Verfahrens |
Country Status (12)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3509616A1 (de) * | 1985-02-27 | 1986-09-04 | Korf Engineering GmbH, 4000 Düsseldorf | Verfahren zum kompaktieren von eisenpartikeln und nachfolgendem auseinanderbrechen des kompaktierten eisenbandes und vorrichtung zur durchfuehrung dieses verfahrens |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2852964A1 (de) * | 1978-12-07 | 1980-06-26 | Krupp Polysius Ag | Verfahren und anlage zur reduktion von erzen |
| JPS55119116A (en) * | 1979-03-02 | 1980-09-12 | Agency Of Ind Science & Technol | Preventive method for re-oxidation of reduced iron powder and its device |
| JPS56160900A (en) * | 1980-05-16 | 1981-12-10 | Mitsubishi Heavy Ind Ltd | Briquette machine |
| DE3732351A1 (de) * | 1987-09-25 | 1989-04-06 | Metallgesellschaft Ag | Verfahren zur herstellung von bindemittellosen briketts aus stahlwerksstaeuben |
| AT404361B (de) * | 1995-01-23 | 1998-11-25 | Voest Alpine Ind Anlagen | Verfahren und vorrichtung zum abkühlen von heissem eisenschwamm |
| DE10156735C2 (de) * | 2001-11-19 | 2003-10-30 | Koeppern & Co Kg Maschf | Verfahren zum Heißgranulieren von metallhaltigen Stoffpartikeln, wie Eisenschwamm, Hüttenstäube, Hüttenreststoffe etc. |
| JP4966200B2 (ja) * | 2004-10-19 | 2012-07-04 | ポスコ | 粉還元鉄含有還元体の塊成体製造装置及びこれを備えた鎔鉄製造装置 |
| DE102005006492A1 (de) * | 2005-02-12 | 2006-08-24 | S&B Industrial Minerals Gmbh | Verfahren und Vorrichtung zur Herstellung quellfähiger Grobkörner |
| KR101429643B1 (ko) * | 2012-12-07 | 2014-08-13 | 주식회사 포스코 | 판상 hbi 입자 분리 장치 |
| JP5971141B2 (ja) * | 2013-02-01 | 2016-08-17 | 新東工業株式会社 | ブリケットマシン |
| CN109093107B (zh) * | 2018-08-27 | 2021-11-02 | 陕西安康三航纳米科技股份有限公司 | 一种回转式超细/纳米粉体钝化装置 |
| RU2735086C1 (ru) * | 2020-04-03 | 2020-10-28 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Алтайский государственный аграрный университет" (ФГБОУ ВО Алтайский ГАУ) | Валковый пресс для гранулирования |
| CN114230215A (zh) * | 2021-12-09 | 2022-03-25 | 南京广兰建材科技有限公司 | 一种利用生产废水生产混凝土的制备方法 |
| DE102022101419A1 (de) * | 2022-01-21 | 2023-07-27 | Maschinenfabrik Köppern Gmbh & Co. Kg | Vorrichtung zum Zerteilen eines Brikettstrangs |
| SE2351155A1 (en) * | 2023-10-09 | 2025-04-10 | Hybrit Development Ab | Process and system for production of passivated cold direct reduced iron |
-
1976
- 1976-04-30 ZA ZA762594A patent/ZA762594B/xx unknown
- 1976-05-03 AU AU13573/76A patent/AU501229B2/en not_active Expired
- 1976-05-14 AR AR263292A patent/AR208785A1/es active
- 1976-05-19 GB GB20757/76A patent/GB1504088A/en not_active Expired
- 1976-05-20 CA CA252,920A patent/CA1063835A/en not_active Expired
- 1976-05-22 EG EG301/76A patent/EG12017A/xx active
- 1976-05-25 BR BR7603290A patent/BR7603290A/pt unknown
- 1976-06-03 FR FR7616767A patent/FR2313450A1/fr active Granted
- 1976-06-04 JP JP51065469A patent/JPS51148610A/ja active Granted
- 1976-06-04 DE DE2625223A patent/DE2625223C3/de not_active Expired
-
1978
- 1978-10-17 CA CA313,551A patent/CA1062428A/en not_active Expired
-
1981
- 1981-07-06 KE KE3139A patent/KE3139A/xx unknown
- 1981-12-30 MY MY378/81A patent/MY8100378A/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3509616A1 (de) * | 1985-02-27 | 1986-09-04 | Korf Engineering GmbH, 4000 Düsseldorf | Verfahren zum kompaktieren von eisenpartikeln und nachfolgendem auseinanderbrechen des kompaktierten eisenbandes und vorrichtung zur durchfuehrung dieses verfahrens |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1504088A (en) | 1978-03-15 |
| FR2313450A1 (fr) | 1976-12-31 |
| DE2625223B2 (de) | 1980-07-31 |
| AU1357376A (en) | 1977-11-10 |
| BR7603290A (pt) | 1977-02-15 |
| AU501229B2 (en) | 1979-06-14 |
| FR2313450B3 (enrdf_load_stackoverflow) | 1979-02-23 |
| EG12017A (en) | 1978-06-30 |
| DE2625223A1 (de) | 1976-12-09 |
| JPS563881B2 (enrdf_load_stackoverflow) | 1981-01-27 |
| ZA762594B (en) | 1977-04-27 |
| KE3139A (en) | 1981-07-24 |
| MY8100378A (en) | 1981-12-31 |
| JPS51148610A (en) | 1976-12-21 |
| CA1062428A (en) | 1979-09-18 |
| CA1063835A (en) | 1979-10-09 |
| AR208785A1 (es) | 1977-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: MIDREX INTERNATIONAL B.V. ROTTERDAM NIEDERLASSUNG |
|
| 8328 | Change in the person/name/address of the agent |
Free format text: BLUMBACH, P., DIPL.-ING., 6200 WIESBADEN WESER, W., DIPL.-PHYS. DR.RER.NAT. KRAMER, R., DIPL.-ING.,8000 MUENCHEN ZWIRNER, G., DIPL.-ING. DIPL.-WIRTSCH.-ING., 6200 WIESBADEN HOFFMANN, E., DIPL.-ING., PAT.-ANW., 8000 MUENCHEN |
|
| 8339 | Ceased/non-payment of the annual fee |