Abstract: This paper introduces the problem of local damage of enamel stirring shaft in a catalyst production and analyzes the causes of the problem. Combined with the actual production situation of the device, the repair method of enamel stirring shaft damage is explored and put into practice. Meanwhile, some suggestions are put forward to prevent damage of enamel equipment and for reasonable repair after damage. The above research results have successfully solved the problem of local damage of enamel stirring shaft affecting the normal production of the device as well as the problem of repairing the damage of enamel stirring equipment under severe working conditions. This provides a reliable technical method for the repair of this kind of equipment and it is worth of popularization in petrochemical industry.

Key words: enamel stirring shaft, local damage, repair