-
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。
-
公开(公告)号：US5082483A
公开(公告)日：1992-01-21
申请号：US535613
申请日：1990-06-08
CPC分类号： C21B3/08 , C03B19/1045
摘要： The invention provides a new enclosure for slag pelletizers, and a new method of operating such an enclosure, that minimizes the noise and the escape into the ambient atmosphere of hydrogen sulfide and airborne particulate material produced by the pelletization. The enclosure consists of impereable walls and a roof, the pelletized material being removed through an openable door at one end that is closed during the process. The enclosure has three successive zones, in the first of which contains the pelletizer, this being supplied with only the amount of water needed for pelletization. In the second zone containing the slag pile a plurality of very fine mist producing nozzles supply water to the gases to cool them using its latent heat of evaporation, the amount of water supplied being such as to cool them as much as possible while being limited so that it all remains vaporized and cannot enter the slag pile to increase its moisture content. In the third zone the quantity of water supplied is sufficient to condense the water vapor, entraining the soluble hydrogen sulfide and the particulate matter. The condensed water and entrained material is removed and treated, preferably with waste alkaline water, to stabilize the hydrogen sulfide, remove the particulate material, and recycle the water. The non-condensible gases exiting from the top of the third zone can pass through a chimney to the atmosphere or to a gas scrubber for further scrubbing.
摘要翻译： 本发明提供了一种用于渣粒造粒机的新型外壳，以及操作这种外壳的新方法，其最小化了通过造粒产生的硫化氢和空气传播的颗粒材料的噪声和环境空气的逸出。 外壳由不可逾越的墙壁和屋顶组成，造粒材料通过可打开的门在一端被移除，该门在该过程中关闭。 外壳具有三个连续的区域，其中第一个区域包含造粒机，仅供给造粒所需的水量。 在包含渣堆的第二区域中，多个非常细的雾化喷嘴向其供应水，以使其蒸发潜热而使其冷却，所供应的水量尽可能多地被冷却，同时受到限制 它们都保持蒸发，不能进入炉渣堆，以增加其含水量。 在第三区域，供水量足以冷凝水蒸气，夹带可溶性硫化氢和颗粒物。 将冷凝水和夹带的材料除去并处理，优选用废碱性水处理，以稳定硫化氢，除去颗粒物质，再循环水。 从第三区顶部排出的不可冷凝气体可以通过烟囱进入大气，或通过气体洗涤器进一步擦洗。
-
搜索结果
2 条记录 (耗时 0.021 秒)
