Assembly technique for head sealing cover and kettle of stock solution crystallizer

Abstract

The invention discloses an assembly technique for a head sealing cover and a kettle of a stock solution crystallizer, which comprises the following steps of: according to the technique requirement, the head sealing cover is manufactured; according to the shape of the head sealing cover and the arrangement position of an adapter or a pipeline interface on the head sealing cover, an assembling supporting plate is manufactured; the head sealing cover is inversely arranged on the assembling supporting plate; the kettle is manufactured, lifted by a lifting device and inversely arranged on the headsealing cover; the position of the kettle is regulated; the contact site between the kettle and the head sealing cover is tightly jointed by depending on the self weight of the kettle; according to the technique requirement, the welding is carried out to cause the head sealing cover and the kettle to be connected into one body. In the assembly technique, the kettle is inversely arranged on the head sealing cover, and the self weight of the kettle is used for compressing the head sealing cover so that the kettle and the head sealing cover are tightly jointed, thus effectively reducing the crackbetween the kettle and the head sealing cover, being beneficial for the welding operation of the next step, preventing the deformation of the head sealing during welding, having more obvious protection effect on the head sealing cover, shortening the assembling working period and reducing the manufacture cost of equipment.

Description

technical field [0001] The invention relates to an assembly process of a raw liquid crystallizer, in particular to an assembly process method for a head cover and a kettle body of a raw liquid crystallizer. Background technique [0002] The raw liquid crystallizer is an important equipment in the chemical production line. It is a typical stirred reaction kettle with a relatively complicated structure. . Such as figure 1 Among them, the structure of the equipment is relatively complicated. The diameter of the inner cylinder of the kettle body is 3m, and the diameter of the outer shell (jacket) of the kettle body is 3.3m. The upper head cover and the lower kettle body are welded together, and the weight of the kettle body itself Big, about 16 tons. On the head cover, there are multiple joints or pipeline interfaces, such as the reducer seat, the entrance for workers to enter and repair, the feeding pipe, the mounting seat of the sight glass, and multiple gas inlet pipes, et...

AI Technical Summary

Problems solved by technology

In actual operation, the shortcomings of this assembly method are mainly: 1. Large cracks, large offset, and loose fit; The edges cannot fit well, the cracks are large, and the offset between the two is also large, and the fit is not tight, so that the following welding process cannot be carried out.

2. It is easy to cause the deformation of the head cover during welding, which will have an adverse effect on the joints or pipe connections on the head cover

3. The weight of the kettle body reaches about 16 tons, and the weight of the head cover is much smaller than that of the kettle body. The assembly method of putting the head cover on the kettle body does not take advantage of the large weight of the kettle body. When a large external force is applied to the cover, the crack between the head cover and the kettle body is still large and the fit is not tight

4. The assembly period is long, which increases the manufacturing cost of the equipment accordingly

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