The maze seal in the sealing device has no contact surface, so there is no effect of wear and barrel movement, the structure is simple, but its sealing effect is poor, and is now usually used with other types of seals, as a combined sealing device. The combined seal has the characteristics of closed, flexible, moderate hardness, wear resistance, high temperature and so on. Its sealing parts can change with the change of the kiln body, so as to adapt to the rotation kiln in the high temperature conditions of the formation of deformation and deflection and other problems, such seals can solve the kiln head running material problems, leakage phenomenon is also basically disappeared, and improve the secondary wind temperature, reduce coal consumption and so on.
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