Co-injection of Noncoking Coal and Natural Gas in Blast Furnace

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The most radical method for saving coke in ironmaking is to inject gaseous, liquid and solid substitutes into the blast furnace (BF) hearth by means of tuyeres. Use of one or another type of auxiliary fuel depends on the ratio of their prices, their deposits and the peculiarity of the technology. <br>This paper presents the basic theoretical proposals of a technology for the simultaneous injection by tuyeres of natural gas (NG) and pulverized coal (PC) with any ratio up to complete exception of one of them. A laboratory study has been carried out of the thermal decomposition and gasification of different types of coals. Determination has been made of the softening temperature and melting temperature of the ash of these coals. These temperatures play an important role in optimizing the tuyere assembly design, raceway processes and slag regimes. The factors which determine the oxidizing potential of the raceway have been established. <br>A study has been made of the comparative estimation of NG and PC and the compensation rates for BF operational conditions with simultaneous injection ranges of 0-100 m<sup>3</sup>/tHM NG and 0-200 kg/tHM PC, at a flame temperature of 1950-2150ºC and maintaining other blast and burden parameters constant. The rates automatically compensate the changes in temperature and the thermal and oxidizing potential in the raceway. <br>This technology and tuyere assembly design are successfully used at two BFs.

収録刊行物

  • ISIJ international

    ISIJ international 39(3), 229-238, 1999-03-15

    The Iron and Steel Institute of Japan

参考文献:  47件中 1-47件 を表示

  • <no title>

    Statistics on Energy in the Steel Industry, 1996

    被引用文献1件

  • <no title>

    Committee on Economic Studies, 1996

    被引用文献1件

  • <no title>

    GARCIA L.

    Rev. Metal. Madrid 33(6), 403, 1997

    被引用文献1件

  • <no title>

    YAROSHEVSKII S. L.

    Pig Iron Smelting Using Pulverized Coal Injection 176, 1988

    被引用文献1件

  • <no title>

    BABICH A. I.

    Intensifying Pulverized Coal Use in Blast Furnace Operation 200, 1993

    被引用文献1件

  • <no title>

    DUNAEV N. E.

    Injection of Dust Materials in Blast Furnaces 208, 1977

    被引用文献1件

  • <no title>

    European Blast Furnace Committee

    Performance Data Sinter Plants and Blast Furnaces, 1998

    被引用文献1件

  • <no title>

    GRIFFIN S.

    Steel Times 208(5), 354, 1980

    被引用文献1件

  • <no title>

    KAJIKAWA Y.

    Trans. Iron Steel Inst. Jpn. 22(2), 134, 1982

    被引用文献1件

  • <no title>

    PISILA E.

    Meeting of European Blast Furnace Committee, 1997

    被引用文献1件

  • <no title>

    HANLON J. O.

    Steel Times 221(12), 508, 1993

    被引用文献1件

  • <no title>

    SHOURONG Z.

    Proc. 6th Int. Iron Steel Cong., Nagoya, Japan 2, 500, 1990

    被引用文献1件

  • <no title>

    TERESHCHENKO V. P.

    Stal (8), 7, 1992

    被引用文献1件

  • <no title>

    YAROSHEVSKII S. L.

    Stal (8), 11, 1995

    被引用文献1件

  • <no title>

    SCHUETT K. J.

    Iron Steelmaker 24(3), 65, 1977

    被引用文献1件

  • <no title>

    SEMYONOV N.

    Chain Reactions, 1934

    被引用文献1件

  • <no title>

    GRINENKO B. S.

    Producing Acetylene from Natural Gas 178, 1963

    被引用文献1件

  • <no title>

    KAZANTSEV E. I.

    Industrial Furnaces 368, 1975

    被引用文献1件

  • <no title>

    BUGAEV K. M.

    Doctoral Thesis, Donetsk 46, 1995

    被引用文献1件

  • <no title>

    KNORRE G. T.

    Theory of Furnace Processes 491, 1966

    被引用文献1件

  • <no title>

    GUDENAU H. W.

    Proc. 1st European Ironmaking Cong., Aachen, Germany, 1986

    被引用文献1件

  • <no title>

    SHUHAN M.

    Proc. 2nd European Ironmaking Cong., Glasgow, United Kingdom 224, 1991

    被引用文献1件

  • <no title>

    GRAFFEUILLE F.

    Proc. 2nd European Ironmaking Cong., Glasgow, United Kingdom 233, 1991

    被引用文献1件

  • <no title>

    FIERMAN G. A.

    Proc. 3rd European Ironmaking Cong., Ghent, Belgium 64, 1996

    被引用文献1件

  • <no title>

    KADOGUCHI K.

    Proc. 3rd European Ironmaking Cong., Ghent, Belgium 72, 1996

    被引用文献1件

  • <no title>

    RANADE M. G.

    Proc. 3rd European Ironmaking Cong., Ghent, Belgium 82, 1996

    被引用文献1件

  • <no title>

    KAMIJO T.

    Proc. 1st Int. Cong. on Sic. and Tech. of Ironmaking 505, 1994

    被引用文献1件

  • <no title>

    LAI F. C.

    Proc. 1st Int. Cong. on Sci. and Tech. of Ironmaking 541, 1994

    被引用文献1件

  • <no title>

    ANDOH A.

    Proc. 1st Int. Cong. on Sci. and Tech. of Ironmaking 547, 1994

    被引用文献1件

  • <no title>

    SHIBATA K.

    Proc. 1st Int. Cong. on Sci. and Tech. of Ironmaking 553, 1994

    被引用文献1件

  • <no title>

    STEILER J. M.

    Rev. Metall., Cah. Inf. Tech. 93(1), 55, 1996

    被引用文献1件

  • <no title>

    KIMURA K.

    Rev. Metall., Cah. Inf. Tech. 93(4), 575, 1996

    被引用文献1件

  • <no title>

    IWANAGA Y.

    Ironmaking Steelmaking 19(1), 36, 1992

    被引用文献1件

  • <no title>

    CAMPBELL D. A.

    Ironmaking Steelmaking 19(2), 120, 1992

    被引用文献1件

  • <no title>

    BABICH A.

    Rev. Metal. Madrid 34, 141, 1998

    被引用文献1件

  • <no title>

    ISIDRO A.

    Proc. Conf. VIII Int. VIII Conf. on Coal Sci. and Tech. 1, 551, 1995

    被引用文献1件

  • <no title>

    ASTM Standard Test Method for Fusibility of Coal and Coke Ash. Designation : D 1857-68 (Reapproved), 1980

    被引用文献1件

  • <no title>

    RAMM A. N.

    Modern Blast Furnace Process 304, 1980

    被引用文献1件

  • <no title>

    YAROSHEVSKII S. L.

    Proc. 3rd Int. Conf. on Combustion Tech. for a Clean Environment, Lisbon, Portugal 2, 60, 1995

    被引用文献1件

  • <no title>

    PETERS K. -H.

    Proc. 1st Int. Cong. on Sci. and Tech. of Ironmaking 493, 1994

    被引用文献1件

  • <no title>

    MALDONADO A.

    Proc. 1st Int. Cong. on Sci. and Tech. of Ironmaking 535, 1994

    被引用文献1件

  • <no title>

    BABICH A. I.

    Steel USSR-Eng. Tr. 12(5), 189, 1982

    被引用文献1件

  • <no title>

    BABICH A.

    Rev. Metal. Madrid 33(2), 71, 1997

    被引用文献1件

  • <no title>

    PETERS K. H.

    Proc. 2nd European Ironmaking Cong., Glasgow, United Kingdom 247, 1991

    被引用文献3件

  • High Rate Coal Injection of 218kg/t at Fukuyama No. 4 Blast Furnace

    MAKI Akira , SAKAI Atsushi , TAKAGAKI Noriyoshi , MORI Kimitoshi , ARIYAMA Tatsuro , SATO Michitaka , MURAI Ryota

    ISIJ international 36(6), 650-657, 1996-06-15

    J-STAGE DOI 参考文献12件 被引用文献7件

  • Integrated Mathematical Model of Pulverised Coal Combustion in a Blast Furnace

    TAKEDA Kanji , LOCKWOOD F. C.

    ISIJ international 37(5), 432-440, 1997-05-15

    J-STAGE DOI 参考文献23件 被引用文献7件

  • Increase of Pulverized Coal Use Efficiency in Blast Furnace

    BABICH A. , YAROSHEVSKII S. , FORMOSO A. , ISIDRO A. , FERREIRA S. , CORES A. , GARCIA L.

    ISIJ international 36(10), 1250-1258, 1996-10-15

    J-STAGE DOI 参考文献16件 被引用文献2件

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