High-temperature gas damper

The invention relates to a high-temperature gas damper, which belongs to the filed of gas combustion. The damper is a necessary device used in the flue systems of a power plant, an incinerator, a blast furnace and the like, aiming at the regulation of gas volume, the pressure control in a combustion system and the personnel safety of personnel maintaining various devices connected with air channels. The structural design of the damper is characterized in that a damper blade is connected with a rack-structured vane framework; a geometrical rack structure made according to transformation rule ofmaterials is reasonably jointed and reinforced with a vane blade, thus effectively solving the transformation problem due to heat expansion; expansion and contraction deviations of damper vanes and r ack-structured vane framework are equalized, thus ensuring the minimum malformed transformation due to transformation differences of different parts; and the cooled vanes has uniform transformation and ...

Method for preparing swelled fluorine mica by kaoline