Alignment method of kettle-like equipment

Abstract

The invention discloses an alignment method of kettle-like equipment, and relates to a coaxiality detection and correction method for an agitating shaft and a kettle body in the processing and mounting processes of large-sized tank-like equipment with an agitator. The alignment method of the kettle-like equipment, which can form a high-precision running requirement between the agitator and the kettle body in the self deformation condition of the kettle body, is provided. The kettle-like equipment comprises the agitator and the tank-shaped kettle body; a ring-flange-shaped convex edge for connecting the agitator is arranged at the middle position of the top end of the kettle body; the agitator comprises a connecting flange, an intermediate shaft and an agitation arm; the kettle-like equipment also comprises a direction indication instrument and a target; an infrared perpendicular direction indication instrument is fixedly connected to the central position of a special template; and the target comprises a target disk and a bracket. By using the alignment method, a technical difficult problem always existing in the field is solved; after the precisions of the convex edge and the kettle body are promoted, the precision requirement between the agitation shaft and the kettle body can be guaranteed, so that the situation that an unbalance load cannot occur in a processing process is guaranteed; the service life of the equipment is prolonged; and the agitation efficacy of a material is improved.

Description

technical field [0001] The invention relates to a method for detecting and correcting the coaxiality of a stirring shaft and a kettle body in the process of processing and installing large-scale tank equipment with agitators. Background technique [0002] The processing of large tank type equipment (large reactor) with agitator is generally carried out as follows (such as figure 1 Shown): Make the cylindrical kettle body 1, make the upper head 11, make the lower head, and then weld the aforementioned three into one. When making the upper head 11, the mounting flange (flange 2) on the upper head 11 for installing the stirring shaft is welded together with the upper head 1 when making the upper head 11 to form a flange weld 22 , and then the upper head 11 welded with the flange and the kettle body 1 are welded as one, that is figure 1 Middle main weld 12. Although the processing accuracy of the stirring shaft, the upper head, and the kettle body can be controlled during...

AI Technical Summary

Problems solved by technology

[0006] In the first case, the partial load caused by gravity and the partial load caused by the stirring load will appear during the operation of the equipment, resulting in abnormal wear of the stirring shaft

In the second case, although there will be no gravity eccentric load, but because it is not in the center, the agitating load will cause an eccentric load of the stirring force, which will deform the agitating shaft and cause abnormal wear of the agitating shaft

Mixed material is not uniform

In the third case, the above two disadvantages are combined, resulting in more negative effects.

[0007] During the operation of large-scale reactors, once there is a deviation in the verticality of the stirring shaft and the concentricity with the kettle body, it will seriously affect the service life and stirring efficiency of the equipment.

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