Ellipse head lining manufacturing process

Abstract

The invention relates to a manufacturing process of an inner liner with an oval seal head, which comprises the following steps: S1, manufacturing an inner liner cover, which includes S11, marking theinner surface of the seal head into N equal parts, S12, drawing an outer edge trace line of the inner liner cover on the inner surface of the seal head, S13, measuring the arc size and the width sideL of the marked dividing area, S14, making one piece of watermelon petal inner liner cover sample, S15, making the remaining N-1 piece of watermelon petals inner liner cover samples, and S16, assemblywelding N pieces equal divided watermelon petal inner liner cover samples; S2, manufacturing an inner liner cone; S3, manufacturing an inner liner cylinder body and S4, assembling an oval seal head inner liner. The manufacturing process of the inner liner with an oval seal head adopts the rolling and forming of the plate bending machine, is not limited by the size of the diameter of the seal head, is convenient to manufacture, accelerates the construction period, saves the cost and has high assembly precision; the inner liner of the oval seal head has an anti-wear effect on a pressure container, and effectively prolongs the service life of the pressure container.

Description

technical field [0001] The invention relates to a manufacturing process of a metallurgical pressure vessel inner lining, in particular to a manufacturing process of an elliptical head inner lining. Background technique [0002] In the multi-stage heat exchange and reaction pressure vessels used in the metallurgical industry, due to the continuous and uninterrupted entry and exit of materials, the equipment body is repeatedly washed, which causes serious wear and tear on the equipment, thus affecting the normal design life of the pressure vessel; in order to reduce the erosion of the material on the equipment body Wear and tear is generally taken in the head section 4 of the pressure vessel (including the bottom head 41 and the upper straight cylinder 42, the height of the straight cylinder is generally 25mm, 40mm or 50mm, such as Figure 2-4 As shown), the method of adding an anti-wear head lining (also known as an elliptical head lining) inside to ensure the normal operation...

AI Technical Summary

Problems solved by technology

[0008] 1. On the one hand, the stamping forming technology is limited by the conditions of use, especially for some large-scale chemical smelting equipment, the required head size is relatively large, and ordinary production equipment cannot produce such a large size head, making it relatively difficult; on the other hand On the one hand, the cost of stamping is high, the delivery cycle is long, and the assembly accuracy is not high enough;

[0009] 2. The splicing method in the form of watermelon petals needs to be cut and debugged, welded and assembled in the head one by one. Not only is the assembly and welding very difficult, but the construction progress is extremely slow, which seriously affects the production progress and delivery schedule.

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