EP0071602A1 - Verfahren und vorrichtung zum behandeln von feinkörnigen schleichenbildnern - Google Patents
Verfahren und vorrichtung zum behandeln von feinkörnigen schleichenbildnernInfo
- Publication number
- EP0071602A1 EP0071602A1 EP81901728A EP81901728A EP0071602A1 EP 0071602 A1 EP0071602 A1 EP 0071602A1 EP 81901728 A EP81901728 A EP 81901728A EP 81901728 A EP81901728 A EP 81901728A EP 0071602 A1 EP0071602 A1 EP 0071602A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conveying
- fines
- screening
- airborne
- particles
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000004907 flux Effects 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000006028 limestone Substances 0.000 claims abstract description 15
- 235000019738 Limestone Nutrition 0.000 claims abstract description 14
- 238000010310 metallurgical process Methods 0.000 claims abstract 4
- 238000012216 screening Methods 0.000 claims description 25
- 239000002245 particle Substances 0.000 claims description 22
- 238000005303 weighing Methods 0.000 claims description 6
- 230000015556 catabolic process Effects 0.000 claims description 2
- 238000006731 degradation reaction Methods 0.000 claims description 2
- 239000010419 fine particle Substances 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 abstract description 9
- 239000001301 oxygen Substances 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 3
- 238000007873 sieving Methods 0.000 abstract 7
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000009628 steelmaking Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000010436 fluorite Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- YLUIKWVQCKSMCF-UHFFFAOYSA-N calcium;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[Mg+2].[Ca+2] YLUIKWVQCKSMCF-UHFFFAOYSA-N 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 238000000915 furnace ionisation nonthermal excitation spectrometry Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
-
- 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
-
- 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
- Agglomerators know that every briquette has, where the rolls meet, a ridge of "flashing". It is weak, and it protrudes and tends to be removed by contact with conveyors or other briquettes. A process dealing with this problem is desirable.
- Blower size depends also upon size, length, and configuration of ductwork and blower location with respect to collection and discharge point or points, but necessary calculations require no inventive skill.
- a means 8 somewhat coarser can be used, but in oxygen steelmaking, the flux desirably reacts as quickly as possible, so it is not especially desirable to use particles any larger than needed to enter the vessel despite the updrafts mentioned above. As received, flux may contain some particles as large as 75 millimeters (3 inches); naturally, the means 8 retains these as oversize and they pass directly to the vessel as at 16.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US1981/000169 WO1982002724A1 (en) | 1981-02-05 | 1981-02-05 | Method and apparatus for handling flux fines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0071602A1 true EP0071602A1 (de) | 1983-02-16 |
Family
ID=22161087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP81901728A Withdrawn EP0071602A1 (de) | 1981-02-05 | 1981-02-05 | Verfahren und vorrichtung zum behandeln von feinkörnigen schleichenbildnern |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0071602A1 (de) |
| AU (1) | AU7321481A (de) |
| WO (1) | WO1982002724A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2277663A (en) * | 1940-09-18 | 1942-03-31 | Charles B Francis | Reclamation of the fine dust from blast furnaces using manganese ores |
| US3188195A (en) * | 1961-10-05 | 1965-06-08 | Allis Chaimers Mfg Company | Pellet of iron ore and flux, and method for making same |
| US3649248A (en) * | 1968-10-28 | 1972-03-14 | Yawata Iron & Steel Co | Process for producing a calcium ferrite for making steels |
| US3773473A (en) * | 1969-10-02 | 1973-11-20 | Fmc Corp | Beneficiation and hot briquetting of phosphate ores by removing -400 mesh fines |
| US3948644A (en) * | 1972-03-27 | 1976-04-06 | Pennsylvania Engineering Corporation | Steel making vessel with dust recycling method and means |
| US3770416A (en) * | 1972-04-17 | 1973-11-06 | Univ Michigan Tech | Treatment of zinc rich steel mill dusts for reuse in steel making processes |
| US4087254A (en) * | 1974-01-03 | 1978-05-02 | J. M. Huber Corporation | Process for pelletizing wet siliceous particulates |
-
1981
- 1981-02-05 WO PCT/US1981/000169 patent/WO1982002724A1/en not_active Ceased
- 1981-02-05 AU AU73214/81A patent/AU7321481A/en not_active Abandoned
- 1981-02-05 EP EP81901728A patent/EP0071602A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8202724A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1982002724A1 (en) | 1982-08-19 |
| AU7321481A (en) | 1982-08-26 |
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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 DE FR GB LU NL SE |
|
| 17P | Request for examination filed |
Effective date: 19830421 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19830106 |