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公开(公告)号：EP1292713A4
公开(公告)日：2004-06-23
申请号：EP01909336
申请日：2001-03-02
Applicant: TECH RESOURCES PTY LTD
Inventor： DRY RODNEY JAMES , BURKE PETER JAMES
CPC classification number: C21B13/0026 , C21B13/0013 , Y02P10/136
Abstract: A molten bath-based direct smelting process for producing ferrous metal from a ferrous feed material is disclosed. The process is characterised by injecting pre-heated air downwardly into metallurgical vessel at an angle of 20 to 90 DEG C relative to a horizontal axis and at a temperature of 800-1400 DEG C and at a velocity of 200-600 m/s via at least one lance (27). This step forces molten material in the region of a lower end of the lance away from the lance and forming a "free" space around the lower end of the lance that has a concentration of molten material that is lower than the molten material concentration in the raised bath. The process is further characterised in that the lance is located so that: (i) the lance extends into the vessel a distance that is at least the outer diameter of the lower end of the lance; and (ii) the lower end of the lance is at least 3 times the outer diameter of the lower end of the lance above a quiescent surface of the molten bath.
Abstract translation: 公开了一种用于由铁原料生产黑色金属的基于熔池的直接熔炼工艺。 该方法的特征在于将预热的空气相对于水平轴线以20-90℃的角度向下喷入冶金容器中，温度为800-1400℃，速度为200-600m / s， 至少一个喷枪（27）。 该步骤迫使喷枪下端区域内的熔融材料离开喷枪，并在喷枪下端周围形成一个“自由”空间，该空间的熔融材料浓度低于熔化材料浓度 举起浴缸。 该方法的进一步特征在于，所述喷枪定位成使得：（i）所述喷枪延伸到所述容器中的距离至少为所述喷枪的所述下端的外径; （ii）所述喷枪的下端至少是所述喷枪的下端的外径的3倍以上，位于所述熔池的静止表面上方。
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公开(公告)号：BR0108952A
公开(公告)日：2002-11-26
申请号：BR0108952
申请日：2001-03-02
Applicant: TECH RESOURCES PTY LTD
Inventor： DRY RODNEY JAMES , BURKE PETER JAMES
Abstract: A molten bath-based direct smelting process for producing ferrous metal from a ferrous feed material is disclosed. The process is characterised by injecting pro-heated air downwardly into metallurgical vessel at an angle of 20 to 90° C. relative to a horizontal axis and at a temperature of 800-1400 ° C. and at a velocity of 200-600 m/s via at least one lance ( 27 ) . This step forces molten material in the region of a lower end of the lance away from the lance and forming a "free"space around the lower end of the lance that has a concentration of molten material that is lower than the molten material concentration in the raised bath. The process is further characterised in that the lance is located so that: (i) the lance extends into the vessel a distance that is at least the outer diameter of he lover end of the lance; and (ii) the lower end of the lance is at least 3 times the outer diameter of the lower end of the lance above a quiescent surface of the molt bath.
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公开(公告)号：AU3713101A
公开(公告)日：2001-09-12
申请号：AU3713101
申请日：2001-03-02
Applicant: TECH RESOURCES PTY LTD
Inventor： DRY RODNEY JAMES , BURKE PETER JAMES
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公开(公告)号：CA2401805A1
公开(公告)日：2001-09-07
申请号：CA2401805
申请日：2001-03-02
Applicant: TECH RESOURCES PTY LTD
Inventor： BURKE PETER JAMES , DRY RODNEY JAMES
Abstract: A molten bath-based direct smelting process for producing ferrous metal from a ferrous feed material is disclosed. The process is characterised by injecting pro-heated air downwardly into metallurgical vessel at an angle of 20 to 90° C. relative to a horizontal axis and at a temperature of 800-1400 ° C. and at a velocity of 200-600 m/s via at least one lance ( 27 ) . This step forces molten material in the region of a lower end of the lance away from the lance and forming a "free"space around the lower end of the lance that has a concentration of molten material that is lower than the molten material concentration in the raised bath. The process is further characterised in that the lance is located so that: (i) the lance extends into the vessel a distance that is at least the outer diameter of he lover end of the lance; and (ii) the lower end of the lance is at least 3 times the outer diameter of the lower end of the lance above a quiescent surface of the molt bath.
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