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目前焦炉煤气鼓风机的动密封,一般都采用铝片嵌在密封体上的薄片型迷宫密封。这种密封用于焦炉煤气鼓风机的油封,是比较好的,但用于气封,则因焦炉煤气中含有多种腐蚀性物质,存在着严重的腐蚀问题。宣化钢铁公司焦化厂自1963年研制成功巴氏合金梳齿材质的迷宫密封后,经过18年的使用证明,寿命由铝质密封的半年延长到三年多,其它性能也较理想,满足了焦炉煤气鼓风机对其的要求。 1.结构以往的鼓风机迷宫密封的梳齿通常采用铝板嵌在密封体上,也有采用铸铝加工成整体的结构。铝板嵌在密封体上的迷宫密封,结构如图1(a)。
At present, coke oven gas blower dynamic seal, generally using aluminum embedded in the sealing body lamellar labyrinth seal. This seal for coke oven gas seal is better, but for gas seal, the coke oven gas contains a variety of corrosive substances, there is a serious corrosion problem. Xuanhua Iron and Steel Company coking plant since 1963 successfully developed pasteurized alloy lacquer maze seal, after 18 years of use proved that the life of the aluminum seal from the semi-year extended to more than three years, the other performance is also more satisfactory to meet the coke Furnace gas blower on its requirements. 1. The structure of the past blower labyrinth seal comb teeth usually use aluminum embedded in the seal body, there are also used cast aluminum processing into the overall structure. Aluminum embedded in the seal on the labyrinth seal, the structure shown in Figure 1 (a).