NO118176B - - Google Patents
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- Publication number
- NO118176B NO118176B NO167957A NO16795767A NO118176B NO 118176 B NO118176 B NO 118176B NO 167957 A NO167957 A NO 167957A NO 16795767 A NO16795767 A NO 16795767A NO 118176 B NO118176 B NO 118176B
- Authority
- NO
- Norway
- Prior art keywords
- reducing agent
- rotary tube
- tube furnace
- furnace
- reduction
- Prior art date
Links
- 239000003638 chemical reducing agent Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 22
- 239000007789 gas Substances 0.000 claims description 17
- 238000011049 filling Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000003546 flue gas Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000003245 coal Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- -1 preheated Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000002893 slag 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
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM0069397 | 1966-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO118176B true NO118176B (xx) | 1969-11-24 |
Family
ID=7313008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO167957A NO118176B (xx) | 1966-05-05 | 1967-04-29 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3505060A (xx) |
| BE (1) | BE697419A (xx) |
| DE (1) | DE1508049A1 (xx) |
| ES (1) | ES339182A1 (xx) |
| GB (1) | GB1119299A (xx) |
| NL (1) | NL6705863A (xx) |
| NO (1) | NO118176B (xx) |
| SE (1) | SE308534B (xx) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3890138A (en) * | 1971-10-19 | 1975-06-17 | Western Titanium N L | Reduction of iron-containing ores |
| US4375883A (en) * | 1980-03-24 | 1983-03-08 | The Direct Reduction Corporation | System for recycling char in iron oxide reducing kilns |
| US4378243A (en) * | 1981-05-22 | 1983-03-29 | The Direct Reduction Corporation | System for coal blowing in iron oxide reducing kilns |
| US4378244A (en) * | 1981-11-03 | 1983-03-29 | The Direct Reduction Corporation | System for coal injection in iron oxide reducing kilns |
| DE3300867A1 (de) * | 1983-01-13 | 1984-07-19 | Mannesmann AG, 4000 Düsseldorf | Verfahren zur erzeugung von stahl durch einschmelzen von eisenschwamm im lichtbogenofen |
| US11410694B2 (en) | 2018-07-19 | 2022-08-09 | Western Digital Technologies, Inc. | Axial flux permanent magnet motor for ball screw cam elevator mechanism for reduced-head hard disk drive |
| CN111480199B (zh) | 2018-07-19 | 2021-08-20 | 西部数据技术公司 | 垂直地平移用于冷存储数据存储装置的加载/卸载坡道机构 |
| US11037590B2 (en) | 2018-07-19 | 2021-06-15 | Western Digital Technologies, Inc. | In-pivot hybrid stepper motor for ball screw cam elevator mechanism for reduced-head hard disk drive |
| US10902871B2 (en) | 2018-07-19 | 2021-01-26 | Western Digital Technologies, Inc. | Low-profile ball screw cam elevator mechanism for cold storage data storage device |
| US10978100B1 (en) | 2018-07-19 | 2021-04-13 | Western Digital Technologies, Inc. | Belt-driven rotary cam elevator mechanism for reduced-head data storage device |
| US10930307B2 (en) | 2019-01-14 | 2021-02-23 | Western Digital Technologies, Inc. | Piezoelectric-based locking of actuator elevator mechanism for cold storage data storage device |
| CN112534501B (zh) | 2019-07-18 | 2022-10-25 | 西部数据技术公司 | 竖直平移用于冷存储数据存储设备的装载/卸载坡道机构 |
| US10916271B1 (en) | 2020-06-25 | 2021-02-09 | Western Digital Technologies, Inc. | Eliminating lead screw hysteresis for vertically translating load/unload ramp mechanism for data storage device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2964308A (en) * | 1958-06-09 | 1960-12-13 | Demag Elektrometallurgie Gmbh | Apparatus for charging low-shaft arc furnaces |
| DE1200330B (de) * | 1960-09-15 | 1965-09-09 | Metallgesellschaft Ag | Verfahren zur Reduktion stueckiger oxydischer Eisenerze zu einem schwammeisenartigen Produkt im Drehrohrofen |
| US3113859A (en) * | 1961-02-09 | 1963-12-10 | R N Corp | Methods for ore reduction and processing of other chemically reactive aggregates |
| US3206299A (en) * | 1961-10-18 | 1965-09-14 | Independence Foundation | Dense-bed, rotary, kiln process and apparatus for pretreatment of a metallurgical charge |
| GB1031228A (en) * | 1962-03-08 | 1966-06-02 | Elektrokemisk As | Improvements in or relating to process of producing metals, metal alloys, carbide, etc. |
-
1966
- 1966-05-05 DE DE19661508049 patent/DE1508049A1/de active Pending
-
1967
- 1967-04-12 ES ES339182A patent/ES339182A1/es not_active Expired
- 1967-04-21 BE BE697419D patent/BE697419A/xx unknown
- 1967-04-26 NL NL6705863A patent/NL6705863A/xx unknown
- 1967-04-28 US US634473A patent/US3505060A/en not_active Expired - Lifetime
- 1967-04-29 NO NO167957A patent/NO118176B/no unknown
- 1967-05-03 SE SE6296/67A patent/SE308534B/xx unknown
- 1967-05-03 GB GB20634/67A patent/GB1119299A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3505060A (en) | 1970-04-07 |
| DE1508049A1 (de) | 1969-10-02 |
| GB1119299A (en) | 1968-07-10 |
| SE308534B (xx) | 1969-02-17 |
| NL6705863A (xx) | 1967-11-06 |
| ES339182A1 (es) | 1968-04-16 |
| BE697419A (xx) | 1967-10-02 |
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