Stud bolt connecting member and industrial furnace inner face repair method

Abstract

The present invention addresses the problem of easily and suitably performing, in a short time, repair work on an industrial furnace inner face using a stud bolt connecting member that connects to a stud bolt when repairing the inner face of an industrial furnace on which a lining material is mounted by the stud bolt, which is provided on the inner face of the furnace wall, passing through the lining material. To repair an inner face of an industrial furnace on which a lining material (2) is mounted on the inner face of the furnace wall (1) by a stud bolt (3) provided on the inner face of the furnace wall passing through the lining material that contains at least an insulating material, a stud bolt connecting member (10) has a connecting cylindrical portion (11) through which the distal end of a stud bolt is inserted and a bolt portion (12) projecting from the distal end of the connecting cylindrical portion and is provided with an opening (13) for welding the stud bolt to the connecting cylindrical portion.

Description

technical field [0001] The invention relates to a stud bolt connecting member connected with a stud bolt and a repairing method for the inner surface of an industrial furnace. A fastener is mounted to the front end of a stud protruding from the above-mentioned furnace lining so that the furnace lining is mounted on the inner face of the furnace wall. In particular, the work of remodeling and repairing the inner surface of the above-mentioned industrial furnace using the stud bolt connection member connected to the stud bolt can be performed easily and appropriately in a short time. Background technique [0002] Conventionally, in industrial furnaces such as heating furnaces and annealing furnaces, as shown in Patent Documents 1 to 4, furnace linings such as heat insulators and metal plates covering the heat insulators are inserted through stud bolts provided on the inner surface of the furnace wall, and Fasteners such as nuts are mounted on the front ends of stud bolts prot...

AI Technical Summary

Problems solved by technology

[0010] However, by aligning the center line of the stud bolt 3 with the stud bolt 5 having the same diameter at the front end surface of the stud bolt 3 as described above, and welding the stud bolt 5 and the stud bolt 3 over the entire circumference, Or it is very difficult to weld the bolt 5 to the stud bolt 3 in a state in which the bolt 5 is parallel to the transverse direction of the front end portion of the stud bolt 3 and is in contact with the outer periphery of the stud bolt 3 . Welding takes a lot of time, and it is easy to cause problems such as poor welding between the bolt 5 and the stud bolt 3

In particular, in an industrial furnace, since many stud bolts 3 are provided, when such a welding operation is performed for each stud bolt 3, there is a problem that it takes a very long time.

[0011] In particular, if figure 1 As shown in (E), when the bolt 5 is welded to the stud bolt 3 so as to be in the transverse direction of the front end of the cut stud bolt 3 , the position of the bolt 5 deviates from the original stud bolt 3 When installing a new furnace lining (not shown), there is a problem that it is necessary to change the position of the hole provided in the new furnace lining or to enlarge the hole.

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