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公开(公告)号：US20090127754A1
公开(公告)日：2009-05-21
申请号：US12226018
申请日：2006-09-15
IPC分类号： F27B3/10
CPC分类号： F27B9/16 , C21B13/105 , F27B9/34 , F27D1/0006 , Y02P10/216
摘要： The present invention discovers a new structural design technique which provides clearances between refractories 13 and fills the clearances with various types of refractories or refractory materials like in the past and, furthermore, uses another method to secure the heat expansion absorption function and provides a hearth structure of a rotary furnace hearth 1 able to prevent contact between the hearth structure and furnace side walls 3 and 4 caused by heat expansion of the refractories 13 and realize safe and smooth operation, that is, a hearth structure of a rotary furnace hearth laying two or more layers of refractories between side blocks 9 and 10 built at the inner circumferential end and outer circumferential end of a hearth refractory bed 7 of a rotary furnace hearth 1 and laying a powder or pellet hearth material 16 on its top surface, the hearth structure of a rotary furnace hearth 1 characterized by using refractories having a compressive strength of 0.1 to 5 MPa at 800 to 1500° C. for the refractories 14 laid at least at the topmost layer.
摘要翻译： 本发明发现了一种新的结构设计技术，其提供耐火材料13之间的间隙，并且像过去那样填充各种类型的耐火材料或耐火材料，并且还使用另一种方法来确保热膨胀吸收功能并提供炉床结构 能够防止由耐火材料13的热膨胀引起的炉床结构和炉侧壁3和4之间的接触的旋转炉床1，实现安全平稳的操作，即设置两个或多个的旋转炉床的炉床结构 在旋转炉床1的炉床耐火材料床7的内圆周端和外圆周端上建立的侧块9和10之间的更多的耐火材料层，并且在其顶表面上放置粉末或丸状炉床材料16，炉床结构 一种旋转炉床1，其特征在于在800℃下使用抗压强度为0.1〜5MPa的耐火材料 对于至少铺设在最上层的耐火材料14为1500℃。
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公开(公告)号：US07655181B2
公开(公告)日：2010-02-02
申请号：US12225919
申请日：2007-04-03
IPC分类号： C21B13/10
CPC分类号： F27D3/08 , C21B13/0046 , C21B13/105 , F27B9/16 , F27B9/30 , F27B9/39
摘要： A reduced iron discharging screw conveyer is provided in a rotary hearth furnace and discharges reduced iron out of the rotary hearth furnace. The rotary hearth furnace produces the reduced iron by charging and heating a pellet including metallic oxide and coal material onto a rotary hearth rotating in a horizontal plane. The reduced iron discharging screw conveyer has a rotary shaft and a screw blade which is spirally formed on an outer surface of the rotary shaft. A lead angle θ of the screw blade 5a satisfies a condition of “0.46 rad ≦θ≦0.79 rad”. A ratio (h/D) between height h of the screw blade and an outer diameter D of the screw conveyer is smaller than 0.2, and a ratio (t/h) between thickness t and height h of the screw blade is larger than or equal to 0.12.
摘要翻译： 在转底炉中设置还原铁排出螺旋输送机，将还原铁从转底炉中排出。 通过将包含金属氧化物和煤材料的颗粒装入并在水平面上旋转的旋转炉床上，将转炉底炉加热并加热，从而生产还原铁。 还原铁排出螺旋输送机具有旋转轴和螺旋形叶片，螺旋形地形成在旋转轴的外表面上。 螺旋叶片5a的导角θ满足“0.46rad <θ= 0.79rad”的条件。 螺旋叶片的高度h与螺旋输送机的外径D之比（h / D）小于0.2，螺旋叶片的厚度t和高度h之间的比率（t / h）大于或等于 等于0.12。
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公开(公告)号：US20090045558A1
公开(公告)日：2009-02-19
申请号：US12225919
申请日：2007-04-03
IPC分类号： C21B13/08
CPC分类号： F27D3/08 , C21B13/0046 , C21B13/105 , F27B9/16 , F27B9/30 , F27B9/39
摘要： [PROBLEMS] It is an object to provide a reduced iron discharging screw conveyer of a rotary hearth furnace, which can reduce maintenance frequency of the screw conveyer and improve operation rates of the rotary hearth furnace by extending wear life of a screw blade of the screw conveyer.[SOLVING MEANS] A reduced iron discharging screw conveyer 5 which is provided in a rotary hearth furnace and discharges reduced iron out of the rotary hearth furnace, the rotary hearth furnace producing the reduced iron by charging and heating a pellet including metallic oxide and coal material onto a rotary hearth rotating in a horizontal plane, the reduced iron discharging screw conveyer has a rotary shaft and a screw blade which is spirally formed on an outer surface of the rotary shaft. A lead angle θ of the screw blade 5a satisfies a condition of “0.46 rad≦θ≦0.79 rad”. A ratio (h/D) between height h of the screw blade and an outer diameter D of the screw conveyer is smaller than 0.2 and a ratio (t/h) between thickness t and height h of the screw blade is larger than or equal to 0.12.
摘要翻译： 本发明的目的是提供一种转底炉的还原铁排放螺旋输送机，其可以通过延长螺杆的螺旋叶片的磨损寿命来减少螺旋输送机的维护频率并提高转底炉的运行速度 输送机 [解决方案]一种还原铁排出螺旋输送机5，其设置在转底炉中并将还原铁从转底炉中排出，转炉底炉通过加热和加热包括金属氧化物和煤材料的颗粒来生产还原铁 在一个在水平面上旋转的旋转炉床上，还原铁排出螺旋输送机具有旋转轴和螺旋形叶片，螺旋形地形成在旋转轴的外表面上。 螺旋叶片5a的导角θ满足“0.46rad <θ= 0.79rad”的条件。 螺旋叶片的高度h与螺旋输送机的外径D之间的比（h / D）小于0.2，螺旋叶片的厚度t和高度h之间的比（t / h）大于或等于 至0.12。
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公开(公告)号：US20060035193A1
公开(公告)日：2006-02-16
申请号：US10535903
申请日：2003-11-21
申请人： Shinji Shima , Yuichi Sakurai , Masahide Nagatomi
发明人： Shinji Shima , Yuichi Sakurai , Masahide Nagatomi
IPC分类号： F27B9/16
CPC分类号： F27D3/0033 , F27B3/18 , F27B7/32 , F27D3/0025 , F27D3/12 , F27D2003/0063 , F27D2003/0066 , F27D2003/121
摘要： The invention provides a raw materials feeding apparatus capable of uniformly dispersing and feeding into a furnace agglomerated raw materials that are likely to undergo dusting, deformation and mutual adhesion. In a raw material feeding apparatus for a rotary hearth furnace, for feeding raw materials to a rotary hearth furnace by using a flat belt conveyor, the invention employs a construction in which a scraper for guiding the raw materials on the flat belt conveyor to a side surface of the flat belt conveyor is arranged obliquely to a traveling direction of the flat belt conveyor. Preferably, the scraper is arranged in such a manner as to guide the raw materials to both sides of the flat belt conveyor.
摘要翻译： 本发明提供一种能够均匀分散并投入炉中的可能发生粉尘，变形和相互粘附的附聚原料的原料进料装置。 在用于转底炉的原材料供给装置中，通过使用平带式输送机将原料供给到转底炉中，本发明采用这样一种结构，其中将用于将平皮带式输送机上的原料引导到一侧 扁平带式输送机的表面倾斜地布置在平带式输送机的行进方向上。 优选地，刮刀布置成将原材料引导到平带式输送机的两侧。
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公开(公告)号：US20090206529A1
公开(公告)日：2009-08-20
申请号：US12226033
申请日：2006-09-19
摘要： A rotary furnace hearth wherein a hearth carriage carrying a hearth comprises a plurality of hearth carriages respectively having propulsion systems, wherein adjoining hearth carriages are coupled by coupling bolts and nuts via spacers interspaced in a single row in a horizontal plane, whereby even if the hearth carriages deform due to heat at the time of operation, they are structured to be able to freely deform without mutual constraint in the event of curved deformation, so the hearth carriages are maintained in individually stable states at all times.
摘要翻译： 一种旋转炉膛，其中承载炉膛的炉膛托架包括分别具有推进系统的多个炉膛架，其中相邻的炉膛支架通过联接螺栓和螺母通过间隔在水平面中的单排中的间隔件联接，由此即使炉膛 托架在操作时由于热而变形，它们被构造成能够在弯曲变形的情况下自由地变形而没有相互约束，因此炉底托架始终保持单独的稳定状态。
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公开(公告)号：US07311519B2
公开(公告)日：2007-12-25
申请号：US10535903
申请日：2003-11-21
申请人： Shinji Shima , Yuichi Sakurai , Masahide Nagatomi
发明人： Shinji Shima , Yuichi Sakurai , Masahide Nagatomi
IPC分类号： F27B9/18
CPC分类号： F27D3/0033 , F27B3/18 , F27B7/32 , F27D3/0025 , F27D3/12 , F27D2003/0063 , F27D2003/0066 , F27D2003/121
摘要： The invention provides a raw materials feeding apparatus capable of uniformly dispersing and feeding into a furnace agglomerated raw materials that are likely to undergo dusting, deformation and mutual adhesion. In a raw material feeding apparatus for a rotary hearth furnace, for feeding raw materials to a rotary hearth furnace by using a flat belt conveyor, the invention employs a construction in which a scraper for guiding the raw materials on the flat belt conveyor to a side surface of the flat belt conveyor is arranged obliquely to a traveling direction of the flat belt conveyor. Preferably, the scraper is arranged in such a manner as to guide the raw materials to both sides of the flat belt conveyor.
摘要翻译： 本发明提供一种能够均匀分散并投入炉中的可能发生粉尘，变形和相互粘附的附聚原料的原料进料装置。 在用于转底炉的原材料供给装置中，通过使用平带式输送机将原料供给到转底炉中，本发明采用这样一种结构，其中将用于将平皮带式输送机上的原料引导到一侧 扁平带式输送机的表面倾斜地布置在平带式输送机的行进方向上。 优选地，刮刀布置成将原材料引导到平带式输送机的两侧。
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公开(公告)号：US08057736B2
公开(公告)日：2011-11-15
申请号：US12226018
申请日：2006-09-15
CPC分类号： F27B9/16 , C21B13/105 , F27B9/34 , F27D1/0006 , Y02P10/216
摘要： The present invention discovers a new structural design technique which provides clearances between refractories 13 and fills the clearances with various types of refractories or refractory materials like in the past and, furthermore, uses another method to secure the heat expansion absorption function and provides a hearth structure of a rotary furnace hearth 1 able to prevent contact between the hearth structure and furnace side walls 3 and 4 caused by heat expansion of the refractories 13 and realize safe and smooth operation, that is, a hearth structure of a rotary furnace hearth laying two or more layers of refractories between side blocks 9 and 10 built at the inner circumferential end and outer circumferential end of a hearth refractory bed 7 of a rotary furnace hearth 1 and laying a powder or pellet hearth material 16 on its top surface, the hearth structure of a rotary furnace hearth 1 characterized by using refractories having a compressive strength of 0.1 to 5 MPa at 800 to 1500° C. for the refractories 14 laid at least at the topmost layer.
摘要翻译： 本发明发现了一种新的结构设计技术，其提供耐火材料13之间的间隙，并且像过去那样填充各种类型的耐火材料或耐火材料，并且还使用另一种方法来确保热膨胀吸收功能并提供炉床结构 能够防止由耐火材料13的热膨胀引起的炉床结构和炉侧壁3和4之间的接触的旋转炉床1，实现安全平稳的操作，即设置两个或多个的旋转炉床的炉床结构 在旋转炉床1的炉床耐火材料床7的内圆周端和外圆周端上建立的侧块9和10之间的更多的耐火材料层，并且在其顶表面上放置粉末或丸状炉床材料16，炉床结构 一种旋转炉床1，其特征在于在800℃下使用抗压强度为0.1〜5MPa的耐火材料 对于至少铺设在最上层的耐火材料14为1500℃。
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公开(公告)号：US08021602B2
公开(公告)日：2011-09-20
申请号：US12226033
申请日：2006-09-19
IPC分类号： F27B9/30
摘要： A rotary furnace hearth wherein a hearth carriage carrying a hearth comprises a plurality of hearth carriages respectively having propulsion systems, wherein adjoining hearth carriages are coupled by coupling bolts and nuts via spacers interspaced in a single row in a horizontal plane, whereby even if the hearth carriages deform due to heat at the time of operation, they are structured to be able to freely deform without mutual constraint in the event of curved deformation, so the hearth carriages are maintained in individually stable states at all times.
摘要翻译： 一种旋转炉膛，其中承载炉膛的炉膛托架包括分别具有推进系统的多个炉膛架，其中相邻的炉膛支架通过联接螺栓和螺母通过间隔在水平面中的单排中的间隔件联接，由此即使炉膛 托架在操作时由于热而变形，它们被构造成能够在弯曲变形的情况下自由地变形而没有相互约束，因此炉底托架始终保持单独的稳定状态。
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公开(公告)号：US07452497B2
公开(公告)日：2008-11-18
申请号：US10516177
申请日：2003-05-29
申请人： Tomoaki Shibata , Shinji Shima
发明人： Tomoaki Shibata , Shinji Shima
IPC分类号： C21B7/16
CPC分类号： F27D1/00 , C21B13/105 , F27B9/16 , F27B9/32
摘要： A furnace sidewall structure of a rotary hearth furnace for making direct reduced iron which is agglomerated iron ore or waste iron oxide containing a reducing agent on a rotary hearth by heating or for heating at least one steel piece, wherein the rotary hearth furnace includes an outer furnace sidewall and an inner furnace sidewall, wherein at least one of the outer furnace sidewall and the inner furnace sidewall is polygonal. The furnace sidewall structure can be prepared with lower manufacturing costs relative to conventional circular profile rotary hearth furnace with respect to the furnace sidewall. The production thereof is easy with respect to manufacturing and with respect to the fact that the dimensional accuracy of the manufactured furnace sidewall can be easily adjusted. Also, there is associated a shorter installation/construction work period and a reduction in the installation/construction cost.
摘要翻译： 一种用于制造直接还原铁的转炉式炉的炉侧壁结构，其是通过加热或用于加热至少一个钢件而在回转炉床上含有还原剂的附聚铁矿石或废铁氧化物，其中所述转底炉包括外部 炉侧壁和内炉侧壁，其中外炉侧壁和内炉侧壁中的至少一个是多边形。 相对于炉壁侧壁的常规圆形旋转炉床炉，可以以较低的制造成本来制备炉侧壁结构。 其制造方面相对于制造容易，并且可以容易地调节制造的炉侧壁的尺寸精度。 此外，安装/施工工作期较短，安装/施工成本降低。
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