Welding method of backing ring device for slag treatment process

Abstract

The invention discloses a welding method of a backing ring device for a slag treatment process. The welding method comprises the steps of elevating a pre-welding process: beveling a welding point of abacking ring body and a backing ring axial connection plate, and arranging a welding process base plate on the back surface of a groove; then performing assembling to ensure that the circle centers of external circles of small and large barrel backing rings are overlapped with the circle center of the backing ring axial connection plate, performing a welding process, and finally, completing welding through flaw detection and thermal treatment of a welding line. According to the welding method of the backing ring device for the slag treatment process, by adjustment of welding process parameters and control over the quality in a welding working process, a backing ring body and an equipment body are welded into a whole, so that the problem of wear caused by a gap of a conventional backing ring device is solved; furthermore, the welding line is high in intensity, and the welding efficiency is high; and material selection considers the wear resistance required by the working condition of the backing ring body, and solves the problems on welding and thermal treatment possibility of the backing ring body.

Description

technical field [0001] The invention relates to a welding method for a support ring device of a slag treatment process, and is particularly suitable for welding a support ring device of a drum method slag treatment device. Background technique [0002] The drum slag treatment device is one of the most advanced slag treatment devices in the world at present. It has the characteristics of short process, low investment, safety and reliability, and low energy consumption. Moreover, the treated steel slag can be directly used with less pollution. [0003] In the past, the assembly relationship between the support ring and the cylinder body (that is, an integral support frame formed by welding the axial connecting plate of the support ring, the radial support rib plate of the support ring, the inner ring and the like) all adopts transition or Clearance fit, after a long time, it is easy to cause gaps or gaps at the joints (radial and axial directions) between the inner ring of the...

AI Technical Summary

Problems solved by technology

[0003] In the past, the assembly relationship between the support ring and the cylinder body (that is, an integral support frame formed by welding the axial connecting plate of the support ring, the radial support rib plate of the support ring, the inner ring and the like) all adopts transition or Clearance fit, after a long time, it is easy to cause gaps or gaps at the joints (radial and axial directions) between the inner ring of the support ring and the cylinder body, resulting in the contact between the inner ring of the support ring and the cylinder body (radial and axial directions) , axial direction) all produce a certain amount of wear, which has a certain degree of influence on the tread wear of the support wheel (support wheel, thrust wheel) of the support ring and the force of the bearing

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