JPH0313291B2 - - Google Patents
Info
- Publication number
- JPH0313291B2 JPH0313291B2 JP57078120A JP7812082A JPH0313291B2 JP H0313291 B2 JPH0313291 B2 JP H0313291B2 JP 57078120 A JP57078120 A JP 57078120A JP 7812082 A JP7812082 A JP 7812082A JP H0313291 B2 JPH0313291 B2 JP H0313291B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- ore
- reduction furnace
- hearth
- smelting
- 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 - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 26
- 239000002893 slag Substances 0.000 claims description 21
- 238000003723 Smelting Methods 0.000 claims description 20
- 238000002844 melting Methods 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 15
- 238000007670 refining Methods 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 238000007664 blowing Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims description 7
- 150000004706 metal oxides Chemical class 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000011651 chromium Substances 0.000 description 7
- 230000004907 flux Effects 0.000 description 7
- 239000012768 molten material Substances 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 4
- 235000010855 food raising agent Nutrition 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 239000004131 EU approved raising agent Substances 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000003832 thermite 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
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
- C21B13/002—Reduction of iron ores by passing through a heated column of carbon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/66—Heat exchange
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57078120A JPS58197208A (ja) | 1982-05-12 | 1982-05-12 | 金属酸化鉱石の溶融還元方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57078120A JPS58197208A (ja) | 1982-05-12 | 1982-05-12 | 金属酸化鉱石の溶融還元方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58197208A JPS58197208A (ja) | 1983-11-16 |
| JPH0313291B2 true JPH0313291B2 (fr) | 1991-02-22 |
Family
ID=13653020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57078120A Granted JPS58197208A (ja) | 1982-05-12 | 1982-05-12 | 金属酸化鉱石の溶融還元方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58197208A (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60218407A (ja) * | 1984-04-13 | 1985-11-01 | Nippon Tekko Renmei | 溶融還元システムの操業方法 |
| DE3540037A1 (de) * | 1984-07-10 | 1987-01-08 | Kuettner Gmbh & Co Kg Dr | Verfahren und einrichtung fuer die zugabe von kalk in den schachtofen |
-
1982
- 1982-05-12 JP JP57078120A patent/JPS58197208A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58197208A (ja) | 1983-11-16 |
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