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公开(公告)号：US5944861A
公开(公告)日：1999-08-31
申请号：US994763
申请日：1997-12-19
CPC分类号： C21B3/08
摘要： Metallurgical slag is expanded to produce a lightweight solid by forming a stream of molten liquid slag of controlled rate of flow and mixing the stream of slag with a controlled quantity of water and flowing the interacting mixture of slag and water into a receptacle. The interaction between slag and water is allowed to proceed for a predetermined period of time to form an expanded solid without the addition of any additional cooling water which would otherwise quench the material and vitrify it. In the receptacle, a vaned rotor operates to segment the interacting mixture of slag and water and project the segmented mixture through the air for collection into a heap.
摘要翻译： 冶金炉渣通过形成一个具有控制流速的熔渣液流，并将炉渣流与受控量的水混合并将炉渣和水的相互作用的混合物流入容器中，从而产生轻质的固体。 允许炉渣和水之间的相互作用进行预定的时间以形成膨胀的固体，而不加入任何附加的冷却水，否则将冷却材料并将其玻璃化。 在容器中，叶片转子用于分段矿渣和水的相互作用的混合物，并将分段的混合物投射通过空气收集成堆。
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公开(公告)号：US4995894A
公开(公告)日：1991-02-26
申请号：US345270
申请日：1989-05-01
CPC分类号： C21B3/08 , C03B19/1045
摘要： An enclosure for slag pelletizers, and a method of operating such an enclosure, that minimizes the escape into the ambient atmosphere of airborne fibres produced by the pelletization process, while permitting the necessary free passage of the steam and gases that are also produced. The enclosure roof consists of at least one layer of wire mesh and a system of overlapping baffles is provided beneath the roof at least above the pelletizer to intercept the particulate material, so that the pellets do not disrupt a blanket of the fibre which is allowed to accumulate on the wire mesh to facilitate removal of the remainder of the fibre from the air stream. The method allows the deposition of an effective blanket, while preventing the deposition of too much fibre, so that the gas stream is diverted and flows out of the open end of the enclosure. A first plurality of water-mist producing nozzles is disposed between the mesh roof and the baffles, while a second plurality is disposed above the mesh roof both delivering a fine mist of water to wet fine particulate, causing it to deposit. A plurality of water-jet producing nozzles are disposed above the roof and delivers jets of water to wash the deposited particulate from the roof and baffle system down into the enclosure interior as and when required.
摘要翻译： 用于渣粒造粒机的外壳和操作这种外壳的方法使得通过造粒过程产生的空气传播纤维的环境气氛的逸出最小化，同时允许也产生的蒸汽和气体的必要的自由通过。 封闭屋顶由至少一层金属丝网组成，并且至少在造粒机上方在屋顶下设置重叠挡板系统以拦截颗粒材料，使得颗粒不会破坏被允许的纤维的毯子 积聚在丝网上以便于从空气流中除去纤维的其余部分。 该方法允许沉积有效的覆盖层，同时防止太多纤维的沉积，使得气流被转向并流出外壳的开口端。 第一组多个水雾生成喷嘴设置在网状屋顶和挡板之间，而第二组多个布置在网状屋顶之上，两者均将细微的水雾输送到湿的细颗粒，使其沉积。 多个喷水生产喷嘴设置在屋顶上方，并且在需要时输送喷射的水以将沉积的颗粒从屋顶和挡板系统下降到壳体内部。
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公开(公告)号：US4414016A
公开(公告)日：1983-11-08
申请号：US377871
申请日：1982-05-13
CPC分类号： C22B7/04 , B01J2/04 , C21B3/08 , Y02P10/212
摘要： Apparatus for the pelletization of heat-liquifiable materials, such as metallurgical slags, consists of feed means for the molten material, these feed means depositing the material on a downwardly-extending feed plate over which it flows while it is mixed with water, if water is necessary to promote the expansion of the molten material and for control of the cooling. The material then flows on to a first rotating radially-vaned drum or rotor by which it is projected into the air for simultaneous cooling and pelletization. The feed means comprises flow control means such that any flow greater than a predetermined maximum is fed onto a second feed plate disposed above the first, from which the excess molten material flows on to a second rotating radially-vaned drum or rotor operative in like manner to the first. The flow control means may comprise for example a dam over which the excess material flows. Preferably both of the feed plates are mounted to vibrate and are vibrated by a rotating eccentric weight to reduce adhering of the material to the feed surface plate by thus reducing the heating thereof.
摘要翻译： 用于造粒热液化材料如冶金炉渣的设备由用于熔融材料的进料装置组成，这些进料装置将材料沉积在向下延伸的进料板上，当其与水混合时，该进料板与水混合，如果水 是促进熔融材料膨胀和控制冷却所必需的。 然后材料流入第一旋转的径向滚筒或转子，通过该滚筒或转子将其投射到空气中以同时冷却和造粒。 进料装置包括流量控制装置，使得大于预定最大值的任何流量被供给到设置在第一进料器上方的第二进料盘上，多余的熔融材料从该进料板流过第二旋转的径向滚筒或转子，以类似方式操作 到第一个 流量控制装置可以包括例如多余材料流过的坝。 优选地，两个馈送板被安装成振动并且通过旋转的偏心重物振动，从而通过减少其加热来减少材料对进料表面板的粘附。
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公开(公告)号：US4451221A
公开(公告)日：1984-05-29
申请号：US377755
申请日：1982-05-13
CPC分类号： B01J2/02 , B22F9/10 , C03B19/1045 , C21B3/08
摘要： Apparatus for the pelletization of heat liquifiable materials, such as metallurgical slags consists of a downwardly-extending feed plate onto which the molten material is fed together with water, if required to promote the expansion of the molten material and for control of the cooling. The material discharges from the feed plate onto a rotating radially vaned drum by rotor by which it is projected into the air for simultaneous cooling and pelletization after it has first passed through a flow control gap formed between the feed plate surface and the periphery of a second rotor mounted above the feed plate. The second rotor is rotated in the direction such that it promotes the flow of the molten material down the plate, forcing the material between the vanes of the projecting rotor, while at the same time spreading the material across the width of the plate against its natural tendency to form a compact stream. The flow of the material is thereby made more uniform, providing for more effective use of the projecting rotor and avoiding localized flooding of the vanes with consequent loss of pelletization. The resulting apparatus can also be more compact for a given output. In some circumstances the second rotor can with advantage be rotated against the direction of flow down the feed plate.
摘要翻译： 用于造粒热液化材料（如冶金炉渣）的设备由向下延伸的进料板组成，如果需要，熔融材料与水一起进料到其上，以促进熔融材料的膨胀并控制冷却。 材料通过转子从进料板排放到旋转的径向滚筒上，通过转子将其投射到空气中，同时冷却和造粒，在其首先通过在进料板表面和第二个进料板周边之间形成的流动控制间隙 转子安装在进料盘上方。 第二转子沿着使得熔融材料向下流动的方向旋转，迫使材料在突出转子的叶片之间，同时将材料横过板的宽度抵靠其自然的 倾向于形成紧凑流。 因此，材料的流动更均匀，提供了更有效地使用突出的转子，并避免了叶片的局部溢流，从而造成造粒的损失。 对于给定的输出，所得到的装置也可以更紧凑。 在某些情况下，第二转子罐有利地可以逆着馈送板向下流动的方向旋转。
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