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公开(公告)号：US5895215A
公开(公告)日：1999-04-20
申请号：US949572
申请日：1997-10-14
CPC分类号： F27B9/38 , F27D3/0033 , F27B9/16 , F27D2003/0008
摘要： An apparatus for charging a feed material onto a rotating hearth of a rotary hearth furnace, the rotary hearth furnace including refractory lined inner and outer walls and having a refractory roof supported thereon, the apparatus comprising a table mounted above the rotating hearth and capable of receiving feed material from outside of the rotary hearth furnace, the table extends transversely across the rotating hearth and having a first end including a distribution member, a second end including a plurality of discharge slots, and an intermediate leveling plow; wherein feed material free falls over said distribution member and is distributed across the width of the table and then adjusted to a uniform depth such that as the rotating hearth passes under the stationary table a curtain of feed material is loaded onto the hearth.
摘要翻译： 一种用于将进给材料装入旋转炉床炉的旋转炉床的装置，该转底炉包括耐火材料内衬和外壁，并且具有支撑在其上的耐火屋顶，该装置包括安装在旋转炉床上方并能够接收 从旋转炉床炉外部进料，工作台横向旋转穿过炉床并具有包括分配构件的第一端，包括多个排放槽的第二端和中间调平犁; 其中进给材料自由地落在所述分配构件上并且分布在桌子的宽度上，然后被调整到均匀的深度，使得当旋转炉床通过固定台下方时，进料材料的窗帘被装载到炉床上。
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公开(公告)号：US08163230B2
公开(公告)日：2012-04-24
申请号：US12201653
申请日：2008-08-29
IPC分类号： F27B7/22
CPC分类号： F27B9/16 , F27B9/36 , F27D99/0033 , F27D99/0035
摘要： A rotary hearth furnace for treating metal oxide materials comprises a hearth mounted for rotary movement within an enclosure. One or more fuel burners are positioned above the hearth. The burners are operably fired to heat the furnace so that heat radiates toward the hearth. One or more oxygen nozzles are positioned between the hearth and the burners in a manner that avoids substantial contact between the oxygen and the briquettes, thereby creating a quiescent zone immediately above the briquettes, with the quiescent zone being sufficient to minimize reoxidation of the reduced briquettes, and minimize entrainment of particulate matter from the briquettes.
摘要翻译： 一种用于处理金属氧化物材料的转底炉，包括一个安装在炉壳内用于旋转运动的炉床。 一个或多个燃料燃烧器位于炉膛上方。 燃烧器可操作地烧制以加热炉子，使得热量朝向炉床辐射。 一个或多个氧气喷嘴以避免氧气和团块之间的实质接触的方式定位在炉膛和燃烧器之间，从而在压块之前形成静止区域，静态区域足以使还原团块的再氧化最小化 ，并最大限度地减少团块中颗粒物的夹带。
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公开(公告)号：US06182817B2
公开(公告)日：2001-02-06
申请号：US09201693
申请日：1998-11-30
IPC分类号： B65G3326
CPC分类号： B21C37/26 , B65G33/265
摘要： A screw having a field replaceable flight. The screw includes a barrel and a helical flighting that is removably attached to the barrel by a plurality of brackets. The helical flighting includes a plurality of segments, each segment includes first and second opposing faces having an opening extending there though and side edges. The segments are positioned side by side to generally cooperatively form the flighting of the screw. At least one face of each segment includes raised bosses. The raised bosses project perpendicularly outwardly from the face of the segment to form a pocket within which the bracket is received. The segments are removably attached to the barrel by inserting a segment forming part of the flighting within the pocket and then removably fastening the segment within the pocket.
摘要翻译： 具有现场可更换飞行的螺钉。 螺杆包括一个桶和一个螺旋排出物，它通过多个支架可移除地连接在桶上。 螺旋形飞行包括多个段，每个段包括第一和第二相对面，其具有在其周围延伸的开口和侧边缘。 这些片段并排定位，以一般地协同地形成螺丝的排出。 每个段的至少一个面包括凸起的凸起。 凸起的凸起从该区段的表面垂直地向外突出，以形成一个口袋，托架被容纳在该口袋内。 通过将形成所述排出物的一部分的片段插入所述袋中并且然后将所述片段可拆卸地紧固在所述袋中，所述片段可移除地附接到所述镜筒。
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公开(公告)号：US20100052226A1
公开(公告)日：2010-03-04
申请号：US12201653
申请日：2008-08-29
IPC分类号： F27B7/22
CPC分类号： F27B9/16 , F27B9/36 , F27D99/0033 , F27D99/0035
摘要： A rotary hearth furnace for treating metal oxide materials comprises a hearth mounted for rotary movement within an enclosure. One or more fuel burners are positioned above the hearth. The burners are operably fired to heat the furnace so that heat radiates toward the hearth. One or more oxygen nozzles are positioned between the hearth and the burners in a manner that avoids substantial contact between the oxygen and the briquettes, thereby creating a quiescent zone immediately above the briquettes, with the quiescent zone being sufficient to minimize reoxidation of the reduced briquettes, and minimize entrainment of particulate matter from the briquettes.
摘要翻译： 一种用于处理金属氧化物材料的转底炉，包括一个安装在炉壳内用于旋转运动的炉床。 一个或多个燃料燃烧器位于炉膛上方。 燃烧器可操作地烧制以加热炉子，使得热量朝向炉床辐射。 一个或多个氧气喷嘴以避免氧气和团块之间的实质接触的方式定位在炉膛和燃烧器之间，从而在压块之前形成静止区域，静态区域足以使还原团块的再氧化最小化 ，并最大限度地减少团块中颗粒物的夹带。
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公开(公告)号：US6152729A
公开(公告)日：2000-11-28
申请号：US358161
申请日：1999-07-20
CPC分类号： C21B13/105 , F27B9/16 , F27B9/39 , F27D3/08 , F27D9/00 , F27B2009/386 , F27D2009/0016 , F27D2009/0021 , Y02P10/136
摘要： A discharge assembly for removing material from a hearth in a rotary hearth furnace including a discharge auger and a coolant spray. The discharge auger is positioned above the hearth of the rotary hearth furnace and includes a central shaft having at least one helical flight affixed to the exterior of the central shaft and the hood is disposed above the discharge auger. The coolant spray cools the discharge auger.
摘要翻译： 一种用于从包括排出螺旋推运器和冷却剂喷射的旋转炉床炉中的炉床中去除材料的排出组件。 排放螺旋推运器位于转底炉的炉床上方，并且包括具有固定在中心轴的外部的至少一个螺旋形飞行的中心轴，并且该罩设置在排放螺旋推运器的上方。 冷却剂喷雾冷却排放螺旋钻。
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公开(公告)号：US06406662B1
公开(公告)日：2002-06-18
申请号：US09591563
申请日：2000-06-09
IPC分类号： C21B716
CPC分类号： C21B13/105 , B65G69/181 , F27B9/16 , F27D3/0033 , F27D2003/0008
摘要： An apparatus for charging feed material through an opening into a furnace has a fixed structure and a moveable door. The moveable door together with the fixed structure defines the opening. The moveable door is mounted for movement toward and away from the fixed structure to widen and narrow the opening. The moveable door is biased toward the fixed structure. The moveable door and the fixed structure create a V-shaped downwardly pointing channel to direct the feed material being fed through the opening by gravity.
摘要翻译： 用于将进料通过开口装入炉中的装置具有固定结构和可移动的门。 可移动门与固定结构一起限定开口。 可移动门被安装成朝向和远离固定结构移动，以使开口变宽和变窄。 可移动门偏向固定结构。 可移动门和固定结构形成V形的向下指向的通道，以引导通过重力被馈送通过开口的进给材料。
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