8.14　Throat Temperature Measuring Device

8.14.1　Before installation of the thermometric device，the installation precision of the stub pipe flange connected with the blast furnace shell shall be rechecked，the center position of the flange shall be measured from the specified start point along the circle of the furnace shell，and its allowable deviation is 5'；the allowable deviation of the center elevation is±5.0mm，and that of the height difference of the center of the adjacent flange is 5.0mm.

8.14.2　The filling（padding）between the thermometric device and the upper flanged joint surface of the blast furnace shell shall meet the provisions of the design document.The flanged joint shall meet the requirements of Item 5 of Article 6.11.1 of this standard.