RO84502B - Procedeu si instalatie pentru reducerea directa a minereului de fier oxidic sub forma de macroparticule - Google Patents
Procedeu si instalatie pentru reducerea directa a minereului de fier oxidic sub forma de macroparticuleInfo
- Publication number
- RO84502B RO84502B RO106702A RO10670282A RO84502B RO 84502 B RO84502 B RO 84502B RO 106702 A RO106702 A RO 106702A RO 10670282 A RO10670282 A RO 10670282A RO 84502 B RO84502 B RO 84502B
- Authority
- RO
- Romania
- Prior art keywords
- reactor
- reduction
- zone
- fed
- oxide
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/04—Making spongy iron or liquid steel, by direct processes in retorts
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0073—Selection or treatment of the reducing gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft 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
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
- C21B13/029—Introducing coolant gas in the shaft furnaces
-
- 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
- C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Procedeul de reducere directa a minereului de fier oxidic sub forma de macroparticule, conform inventiei, se realizeaza într-un reactor vertical cu cuva si pat mobil, cuprinzînd la partea superioara o zona de reducere, în care minereul alimentat la partea superioara a reactorului circula liber descendent în contracurent cu un gaz uzual de reducere, constituit în principal, din monoxid de carbon si hidrogen alimentat la baza zonei de reducere, preîncalzit la o temperatura între 750 si 1100 degree C si, de preferinta, între 800 si 1000 degree C si evacuat la partea superioara a zonei de reducere, în partea de mijloc o zona intermediara izobara si izolata termic, iar la partea inferioara o zona de racire, în care fierul spongios rezultat prin reducere este racit, circulînd descendent în contracurent cu un gaz de racire, care este alimentat la baza reactorului si evacuat la baza zonei intermediare, curentele de gaze de reducere si de racire fiind alimentate în zonele respective ale reactorului, prin circuite separate. în scopuloptimizarii procesului de reducere, se regleaza debitul de alimentare a minereului de fier oxidic în reactor, pentru realizarea curgeii...
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/237,446 US4338123A (en) | 1981-02-23 | 1981-02-23 | Method and apparatus for the reduction of metal ores |
Publications (2)
Publication Number | Publication Date |
---|---|
RO84502A RO84502A (ro) | 1984-06-21 |
RO84502B true RO84502B (ro) | 1984-08-30 |
Family
ID=22893751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO106702A RO84502B (ro) | 1981-02-23 | 1982-02-22 | Procedeu si instalatie pentru reducerea directa a minereului de fier oxidic sub forma de macroparticule |
Country Status (22)
Country | Link |
---|---|
US (1) | US4338123A (ro) |
JP (1) | JPS57155309A (ro) |
KR (1) | KR830009228A (ro) |
AR (1) | AR228639A1 (ro) |
AU (1) | AU8024282A (ro) |
BE (1) | BE892226A (ro) |
BR (1) | BR8200909A (ro) |
CA (1) | CA1185437A (ro) |
DD (1) | DD202052A5 (ro) |
DE (1) | DE3205851A1 (ro) |
ES (1) | ES8307913A1 (ro) |
FR (1) | FR2500481B1 (ro) |
GB (1) | GB2093483B (ro) |
GR (1) | GR81537B (ro) |
IN (1) | IN157551B (ro) |
IT (1) | IT1190695B (ro) |
MX (1) | MX156786A (ro) |
NL (1) | NL8200566A (ro) |
NO (1) | NO820540L (ro) |
RO (1) | RO84502B (ro) |
SE (1) | SE8201080L (ro) |
ZA (1) | ZA82801B (ro) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4528030A (en) * | 1983-05-16 | 1985-07-09 | Hylsa, S.A. | Method of reducing iron ore |
US5702246A (en) * | 1996-02-22 | 1997-12-30 | Xera Technologies Ltd. | Shaft furnace for direct reduction of oxides |
DE19853836C2 (de) * | 1998-11-21 | 2002-02-21 | Internat Briquettes Holding Ca | Verfahren zur Direktreduktion von Oxiden |
DE19960575A1 (de) * | 1999-12-15 | 2001-06-21 | Krupp Polysius Ag | Verfahren und Anlage zur Reduktion von Feinerzen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE548381C (de) * | 1928-09-21 | 1932-04-19 | Fried Krupp Akt Ges Friedrich | Verfahren und Vorrichtung zum Reduzieren von Eisenerzen in einem Schachtofen durch heisse Gase |
GB1347785A (en) * | 1970-07-15 | 1974-02-27 | Fierro Esponja | Method of reducing particulate metal ores |
US3799521A (en) * | 1973-02-01 | 1974-03-26 | Fierro Esponja | Method and apparatus for the gaseous reduction of iron ore to sponge iron |
US3850616A (en) * | 1973-10-29 | 1974-11-26 | Armco Steel Corp | Inert gas seal for product discharge from a shaft furnace |
US3836131A (en) * | 1973-12-26 | 1974-09-17 | Mildrex Corp | Apparatus for cooling a moving bed of solid, gas permeable particles |
-
1981
- 1981-02-23 US US06/237,446 patent/US4338123A/en not_active Expired - Lifetime
-
1982
- 1982-02-04 CA CA000395550A patent/CA1185437A/en not_active Expired
- 1982-02-05 AU AU80242/82A patent/AU8024282A/en not_active Abandoned
- 1982-02-08 ZA ZA82801A patent/ZA82801B/xx unknown
- 1982-02-09 GB GB8203652A patent/GB2093483B/en not_active Expired
- 1982-02-15 FR FR8202417A patent/FR2500481B1/fr not_active Expired
- 1982-02-15 NL NL8200566A patent/NL8200566A/nl not_active Application Discontinuation
- 1982-02-18 DE DE19823205851 patent/DE3205851A1/de active Granted
- 1982-02-19 DD DD82237545A patent/DD202052A5/de not_active IP Right Cessation
- 1982-02-19 BR BR8200909A patent/BR8200909A/pt not_active IP Right Cessation
- 1982-02-22 SE SE8201080A patent/SE8201080L/xx not_active Application Discontinuation
- 1982-02-22 RO RO106702A patent/RO84502B/ro unknown
- 1982-02-22 BE BE0/207374A patent/BE892226A/fr not_active IP Right Cessation
- 1982-02-22 GR GR67355A patent/GR81537B/el unknown
- 1982-02-22 KR KR1019820000774A patent/KR830009228A/ko unknown
- 1982-02-22 NO NO820540A patent/NO820540L/no unknown
- 1982-02-22 ES ES509811A patent/ES8307913A1/es not_active Expired
- 1982-02-22 MX MX191516A patent/MX156786A/es unknown
- 1982-02-22 JP JP57027275A patent/JPS57155309A/ja active Pending
- 1982-02-23 AR AR288525A patent/AR228639A1/es active
- 1982-02-23 IT IT19799/82A patent/IT1190695B/it active
- 1982-02-23 IN IN207/CAL/82A patent/IN157551B/en unknown
Also Published As
Publication number | Publication date |
---|---|
IT8219799A0 (it) | 1982-02-23 |
NO820540L (no) | 1982-08-24 |
DE3205851A1 (de) | 1982-09-09 |
BR8200909A (pt) | 1982-12-28 |
AR228639A1 (es) | 1983-03-30 |
FR2500481B1 (fr) | 1987-07-03 |
KR830009228A (ko) | 1983-12-19 |
GB2093483A (en) | 1982-09-02 |
JPS57155309A (en) | 1982-09-25 |
IN157551B (ro) | 1986-04-19 |
ES509811A0 (es) | 1983-08-01 |
IT1190695B (it) | 1988-02-24 |
FR2500481A1 (fr) | 1982-08-27 |
RO84502A (ro) | 1984-06-21 |
DD202052A5 (de) | 1983-08-24 |
DE3205851C2 (ro) | 1989-04-27 |
SE8201080L (sv) | 1982-08-24 |
ZA82801B (en) | 1982-12-29 |
NL8200566A (nl) | 1982-09-16 |
ES8307913A1 (es) | 1983-08-01 |
GB2093483B (en) | 1984-08-01 |
CA1185437A (en) | 1985-04-16 |
US4338123A (en) | 1982-07-06 |
AU8024282A (en) | 1982-09-02 |
GR81537B (ro) | 1984-12-11 |
BE892226A (fr) | 1982-06-16 |
MX156786A (es) | 1988-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR900004155B1 (ko) | 해면철 또는 선철의 생산방법 및 장치 | |
US3140168A (en) | Reduction of iron ore with hydrogen | |
GB1451040A (en) | Process for the production of steel | |
US5618032A (en) | Shaft furnace for production of iron carbide | |
US3749386A (en) | Method and means for reducing iron oxides in a gaseous reduction process | |
US5669955A (en) | Process for producing pig iron from iron ores, and applicance for the thermal and/or chemical treatment of a readily disintegrating material or for producing pig iron by means of said process | |
US5437708A (en) | Iron carbide production in shaft furnace | |
JPS6137929A (ja) | 硫化濃縮物及び硫化鉱の処理方法ならびにその装置 | |
JPH0365406B2 (ro) | ||
RO81347B (ro) | Procedeu de obtinere a fierului spongios | |
GB1373048A (en) | Method and apparatus for reducing particulate metal ores to sponge iron | |
SU1498396A3 (ru) | Способ получени жидкого чугуна или стального полупродукта из железосодержащего материала | |
RO84502B (ro) | Procedeu si instalatie pentru reducerea directa a minereului de fier oxidic sub forma de macroparticule | |
US3816101A (en) | Method for reducing iron oxides in a gaseous reduction process | |
CA1268633A (en) | Method of producing molten pig iron or steel pre- products from particulate ferrous material | |
JPH01159333A (ja) | 還元ガスの脱亜鉛化法 | |
KR100769794B1 (ko) | 고로에서 선철 또는 액상의 1차 강 제품을 생산하기 위한 방법 및 플랜트 | |
US4900356A (en) | Process and apparatus for producing metallized pellets and scrubbing spent reducing gas | |
US4412858A (en) | Method of converting iron ore into molten iron | |
US6235083B1 (en) | Method for producing a reducing gas serving for the reduction of metal ore | |
US3909244A (en) | Process for directly reducing iron ores in the solid state under pressure | |
US2928730A (en) | Iron ore reduction process | |
US2919983A (en) | Iron ore reduction process | |
US4439233A (en) | Direct reduction of iron | |
US2086881A (en) | Production of nickel and iron carbonyls |