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发明公开
CN1481930A 流化床反应器气体分布板 失效 - 权利终止

流化床反应器气体分布板
摘要：
本发明公开了一种流化床反应器气体分布板。它具有气体分布板，气体分布板上设有进气孔，在气体分布板各个进气孔上封闭焊接一个风帽，并在风帽上开有两个或两个以上的圆形、方形的喷射孔或长条喷射狭缝，其尺寸参数为：风帽上的喷射孔或长条喷射狭缝的当量直径Di与分布板进气孔孔径D0之比Di/D0＝0.2～0.6，喷射方向和水平线的夹角β＝0°～75°，在风帽内部、进气孔上端设有一圆形、方形或锥形的防漏堰，本发明的优点：1)本发明的分布板上的压降转移到了喷射孔上，保证大颗粒不在板上沉积，抗沉积能力增强的；2)流化床分布板上表面形成一层气膜，使整床物料提升，从而充分流化；3)流化床操作稳定性增加，流化床生产周期提高；4)风帽清洗与改造方便，灵活性增强。
摘要（英）：

The gas distributing board for fluidized bed reactor has air intake openings and each air intake opening has one air distribution button welded. The air distribution button has two or more circular or rectangular jet holes or jet slots with equivalent diameter of 0.2-0.6 time that of air intake opening and jetting direction in an angle of 0-75 deg to the horizontal line. Inside the air distribution button and over the air intake opening, there is one circular, squared or conic leakproof weir. The gas distributing board of the present invention has the advantages of no deposit of large grains; one gas film layer formed on the surface to raise material for full fluidizing; raised fluidized bed stability and convenient and flexible air distribution button cleaning and replacement.

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