CA1185432A - System for coal blowing in iron oxide reducing kilns - Google Patents
System for coal blowing in iron oxide reducing kilnsInfo
- Publication number
- CA1185432A CA1185432A CA000401828A CA401828A CA1185432A CA 1185432 A CA1185432 A CA 1185432A CA 000401828 A CA000401828 A CA 000401828A CA 401828 A CA401828 A CA 401828A CA 1185432 A CA1185432 A CA 1185432A
- Authority
- CA
- Canada
- Prior art keywords
- kiln
- reducing agent
- stream
- bed
- discharge end
- 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
- 239000003245 coal Substances 0.000 title claims abstract description 82
- 238000007664 blowing Methods 0.000 title claims abstract description 18
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title abstract description 24
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 63
- 238000000034 method Methods 0.000 claims abstract description 42
- 239000007787 solid Substances 0.000 claims abstract description 42
- 239000007789 gas Substances 0.000 claims abstract description 39
- 238000009826 distribution Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000012546 transfer Methods 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims description 24
- 239000003039 volatile agent Substances 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000003892 spreading Methods 0.000 claims description 3
- 230000007480 spreading Effects 0.000 claims description 3
- 239000002551 biofuel Substances 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 18
- 235000013980 iron oxide Nutrition 0.000 abstract description 11
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000002485 combustion reaction Methods 0.000 description 10
- 230000009467 reduction Effects 0.000 description 10
- 229960005191 ferric oxide Drugs 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000005245 sintering Methods 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 239000003575 carbonaceous material Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000004886 process control Methods 0.000 description 5
- 229940091263 other mineral product in atc Drugs 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000010883 coal ash Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000002939 deleterious effect Effects 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 101150034533 ATIC gene Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 240000006909 Tilia x europaea Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000008188 pellet 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
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
- C21B11/06—Making pig-iron other than in blast furnaces in rotary kilns
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/266,602 US4378243A (en) | 1981-05-22 | 1981-05-22 | System for coal blowing in iron oxide reducing kilns |
| US266,602 | 1981-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1185432A true CA1185432A (en) | 1985-04-16 |
Family
ID=23015255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000401828A Expired CA1185432A (en) | 1981-05-22 | 1982-04-28 | System for coal blowing in iron oxide reducing kilns |
Country Status (9)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985558B (zh) * | 2010-08-19 | 2012-01-04 | 西峡龙成特种材料有限公司 | 煤物质的分解设备 |
| JP6286620B2 (ja) * | 2015-11-09 | 2018-02-28 | Ｄｏｗａエレクトロニクス株式会社 | 鉄粉並びにそれを用いた発熱体及び温熱用具 |
| CN113249539A (zh) * | 2021-06-17 | 2021-08-13 | 北京金博威科技有限公司 | 一种空悬式回转窑反应器及其反应方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US707638A (en) * | 1902-05-14 | 1902-08-26 | Dexter Reynolds | Process of producing steel direct from oxid-of-iron ore. |
| US1977767A (en) * | 1931-10-26 | 1934-10-23 | American Lurgi Corp | Rotary tube furnace for desulphurizing ores in a fine or dustlike condition |
| US2484911A (en) * | 1945-04-21 | 1949-10-18 | Seil Frances Merritt | Rotary kiln |
| US3170786A (en) * | 1962-02-02 | 1965-02-23 | R N Corp | Rotary kiln processing of chemically reactive materials |
| DE1458768A1 (de) * | 1965-02-05 | 1969-09-25 | Metallgesellschaft Ag | Verfahren zum Reduzieren von Eisenerzen im Drehrohrofen |
| DE1508049A1 (de) * | 1966-05-05 | 1969-10-02 | Metallgesellschaft Ag | Verfahren zur Verhuetung oxydischer eisenhaltiger Erze |
| US4304597A (en) * | 1980-03-20 | 1981-12-08 | The Direct Reduction Corporation | System for control of sinter formation in iron oxide reducing kilns |
-
1981
- 1981-05-22 US US06/266,602 patent/US4378243A/en not_active Expired - Lifetime
- 1981-09-15 ZA ZA816384A patent/ZA816384B/xx unknown
- 1981-10-26 ES ES506558A patent/ES8303532A1/es not_active Expired
- 1981-10-28 PT PT73897A patent/PT73897B/pt unknown
- 1981-10-29 BR BR8107006A patent/BR8107006A/pt unknown
- 1981-11-19 JP JP56186082A patent/JPS57192209A/ja active Pending
- 1981-12-21 GR GR66866A patent/GR77322B/el unknown
- 1981-12-31 KR KR1019810005283A patent/KR890002520B1/ko not_active Expired
-
1982
- 1982-04-28 CA CA000401828A patent/CA1185432A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| KR890002520B1 (ko) | 1989-07-13 |
| ZA816384B (en) | 1982-09-29 |
| GR77322B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1984-09-11 |
| KR830007850A (ko) | 1983-11-07 |
| ES506558A0 (es) | 1983-02-01 |
| JPS57192209A (en) | 1982-11-26 |
| US4378243A (en) | 1983-03-29 |
| ES8303532A1 (es) | 1983-02-01 |
| PT73897A (en) | 1981-11-01 |
| BR8107006A (pt) | 1983-04-12 |
| PT73897B (en) | 1983-04-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |