ES461386A1 - Un procedimiento perfeccionado para endurecer nodulos de mi-neral de hierro crudo oxidable. - Google Patents

Un procedimiento perfeccionado para endurecer nodulos de mi-neral de hierro crudo oxidable.

Info

Publication number
ES461386A1
ES461386A1 ES461386A ES461386A ES461386A1 ES 461386 A1 ES461386 A1 ES 461386A1 ES 461386 A ES461386 A ES 461386A ES 461386 A ES461386 A ES 461386A ES 461386 A1 ES461386 A1 ES 461386A1
Authority
ES
Spain
Prior art keywords
furnace
pellets
introduction
zone
line
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
Application number
ES461386A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of ES461386A1 publication Critical patent/ES461386A1/es
Expired legal-status Critical Current

Links

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
    • C22B1/2413—Binding; Briquetting ; Granulating enduration of pellets

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

Un procedimiento perfeccionado para endurecer nódulos de mineral de hierro crudo oxidable en un horno de cuba vertical, comprendido dicho procedimiento pasar los nódulos a través del horno, donde dichos nódulos se calientan por contacto con gases del combustión caliente y aire, teniendo el horno una zona que está aguas abajo de la introducción de los gases de combustión, teniendo dicha zona una temperatura media comprendida entre aproximadamente 593ºC y aproximadamente 1204ºC, comprendiendo el perfeccionamiento dirigir una pluralidad de corrientes de oxígeno hacia los nódulos que pasan por la periferia de dicha zona, de tal manera que (a) cada corriente penetre en el horno de aproximadamente 25,4 a aproximadamente 152,4 mm, medios desde la superficie interior de la pared del horno a lo largo de una línea perpendicular al eje vertical teórico del horno; (b) la velocidad de cada corriente sea suficiente para evitar sustancialmente que la corriente ascienda por la pared del horno; (c) los puntos de introducción de las corrientes estén sobre la superficie interior de la pared del horno situada en la zona; y (d) cualquier línea vertical teórica que sea paralela al eje vertical del horno y a lo largo de la cual línea esté situado cualquier punto de introducción, no esté a más de aproximadamente 305mm de cualquier otra de tales líneas teóricas a lo largo de la cual está situado cualquier otro punto de introducción.
ES461386A 1976-08-06 1977-08-05 Un procedimiento perfeccionado para endurecer nodulos de mi-neral de hierro crudo oxidable. Expired ES461386A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/712,259 US4278462A (en) 1976-08-06 1976-08-06 Process for upgrading iron ore pellets

Publications (1)

Publication Number Publication Date
ES461386A1 true ES461386A1 (es) 1978-05-16

Family

ID=24861384

Family Applications (1)

Application Number Title Priority Date Filing Date
ES461386A Expired ES461386A1 (es) 1976-08-06 1977-08-05 Un procedimiento perfeccionado para endurecer nodulos de mi-neral de hierro crudo oxidable.

Country Status (14)

Country Link
US (1) US4278462A (es)
JP (1) JPS5319122A (es)
AU (1) AU505914B2 (es)
BE (1) BE857564A (es)
BR (1) BR7705180A (es)
CA (1) CA1095254A (es)
DE (1) DE2735404A1 (es)
ES (1) ES461386A1 (es)
FI (1) FI772372A (es)
FR (1) FR2360679A1 (es)
NL (1) NL7708716A (es)
NO (1) NO772761L (es)
SE (1) SE7708935L (es)
ZA (1) ZA774502B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8000882A (nl) * 1980-02-13 1981-09-16 Estel Hoogovens Bv Werkwijze voor het agglomereren van vliegas.
US4432788A (en) * 1981-04-23 1984-02-21 Nippon Kokan Kabushiki Kaisha Method for manufacturing non-fired iron-bearing pellet
AT406780B (de) * 1998-06-03 2000-09-25 Voest Alpine Ind Anlagen Verfahren und vorrichtung zur thermischen behandlung von agglomeraten

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US865658A (en) * 1906-10-13 1907-09-10 James Scott Method of sintering ores
US926289A (en) * 1908-06-27 1909-06-29 Cyrus Robinson Process for desulfurizing and agglomerating ores.
US1166903A (en) * 1915-06-12 1916-01-04 Philip O Harding Method of agglomerating ores.
US1895284A (en) * 1931-05-09 1933-01-24 Isbell Porter Company Direct heated vertical retort
US2532335A (en) * 1945-07-03 1950-12-05 Pickands Mather & Co Process for heat-treating solids
US2533142A (en) * 1945-07-19 1950-12-05 Pickands Mather & Co Heat-treating solids
US2595574A (en) * 1948-05-22 1952-05-06 Babcock & Wilcox Co Solid material heating method and apparatus
US2624560A (en) * 1949-01-18 1953-01-06 Mckee & Co Arthur G Shaft furnace
US2744743A (en) * 1951-11-05 1956-05-08 Erie Mining Co Pellet indurating process and apparatus
US2789034A (en) * 1954-03-30 1957-04-16 Allied Chem & Dye Corp Process and apparatus for converting finely divided metal sulfide ore into sulfur dioxide and agglomerates of low sulfur cinder
US3158463A (en) * 1961-02-17 1964-11-24 Falconbridge Nickel Mines Ltd Agglomeration of ores
US3259483A (en) * 1961-11-06 1966-07-05 Kaiser Ind Corp Method of sintering
DE1186219B (de) * 1964-05-08 1965-01-28 Otto & Co Gmbh Dr C Verfahren und Vorrichtung zum Haerten von Erzpellets
US3365339A (en) * 1965-08-16 1968-01-23 Midland Ross Corp Indurating ore fines pellets
JPS5126914B2 (es) * 1971-09-02 1976-08-09
SU362053A1 (ru) * 1971-09-13 1972-12-13 Всесоюзная

Also Published As

Publication number Publication date
FI772372A (es) 1978-02-07
JPS5319122A (en) 1978-02-22
ZA774502B (en) 1978-06-28
AU505914B2 (en) 1979-12-06
CA1095254A (en) 1981-02-10
BE857564A (fr) 1978-02-06
SE7708935L (sv) 1978-02-07
US4278462A (en) 1981-07-14
DE2735404A1 (de) 1978-02-09
NL7708716A (nl) 1978-02-08
BR7705180A (pt) 1978-05-30
FR2360679A1 (fr) 1978-03-03
AU2766777A (en) 1979-02-08
NO772761L (no) 1978-02-07

Similar Documents

Publication Publication Date Title
JPS5638419A (en) Metal heating furnace with protective atmosphere
ES399381A1 (es) Procedimiento y cubilote para fundir metales en un horno decuba vertical.
ES461386A1 (es) Un procedimiento perfeccionado para endurecer nodulos de mi-neral de hierro crudo oxidable.
GB832384A (en) An improved method of and apparatus for manufacturing iron
ES446707A1 (es) Un procedimiento para el tratamiento termico de material de grano fino, tal como harina cruda de cemento.
US3892517A (en) Appartus for generating a heated oxygen enriched gas stream
GB1425214A (en) Shaft furnace
GB1368152A (en) Central shaft feeding for rotary hearth furnace
ES450668A1 (es) Perfeccionamientos introducidos en una tobera de alto horno no refrigerada por agua.
JPS5268002A (en) Decision of position of fused zone inside blast furnace
GB1343901A (es)
SU672465A1 (ru) Устройство дл предварительного нагрева мелкодисперсного материала
JPS5438208A (en) Blast furnace operating method
SU427219A1 (ru) Печь для нагрева сыпучих материалов дымовыми газами
GB939602A (en) Method of operating a shaft furnace and apparatus for use in the method
JPS5448612A (en) Air blasting in shaft furnace
GB799861A (en) Improvements relating to stoves for drying foundry moulds and cores
SU399525A1 (ru) УСТРОЙСТВО дл ПОДАЧИ ПРИРОДНОГО ГАЗА В ДОМЕННУЮ ПЕЧЬ
SU457729A1 (ru) Установка дл обжига кусковых материалов
Shklyar et al. Aerodynamics and temperature fields in checkerwork of blast furnace hot-blast stoves
JPS5228729A (en) Combustion process with decreasing nitrogen oxidization
Athappan et al. Thermodynamic Model for the Computation of Race-Way Adiabatic Flame Temperature in the Blast Furnace
SCHNEIDER et al. STUDIES ON FLOW CONDITIONS AND FALSE AIR IN TUNNEL BRICK KILNS
GB1019135A (en) Process for directly utilizing ore fines in metallurgical furnaces
JPS51117110A (en) Control method and apparatus of industrial furnace with preheater