New process for manufacturing screen drum by utilizing strip-shaped screen

Abstract

A new process for manufacturing a screen drum by utilizing a strip-shaped screen comprises the steps of mounting a fixing base and a traction base, fixing ribs and conducting roll welding forming. The process is simple, convenient to operate, and low in production cost, and an existing production method for manufacturing the screen drum by utilizing the strip-shaped screen is improved. Supporting rods are fixed on a base, a strip-shaped screen automatic welding machine directly welds grate bars on the surfaces of the supporting rods in the process of driving the supporting rods to move by the traction base, due to the fact that the relative positions of the supporting rods are not changed, the precision of the sizes, such as the diameter and the roundness, of the screen drum made by the screen is ensured well, treatment is carried out through blackening liquid while welding is carried out, a workpiece can be cooled, and meanwhile welding face corrosion-resistant treatment is carried out. Therefore, the welding point is solidly formed, not prone to deformation, and good in surface quality. The process improves shortcomings in the prior art, and has the good economic benefits and certain popularization value.

Description

technical field [0001] The invention relates to a petrochemical equipment, in particular to a manufacturing process of a strip screen screen cylinder used in a hydrogenation reactor. Background technique [0002] The sieve cylinder is an important process accessory in the internal parts of the hydrogenation reactor. The conventional production method is to make a flat plate of the slit screen at the production line, and then unroll it according to the diameter of the sieve cylinder, then roll it on the rolling machine or It is welded after compression molding on a press. The diameter of the screen cylinder manufactured in this way cannot be guaranteed, and the out-of-roundness is seriously out of tolerance, which cannot meet the design specifications; moreover, during the process of pressing and rolling, the welding points of the screen bar and the support rod are easily detached due to force. Welding will seriously affect the product quality. After the screen cylinder is u...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a manufacturing process of a strip screen cylinder to improve the inaccurate diameter and size of the screen cylinder produced by the existing manufacturing method, the out-of-roundness, the easy desoldering of the solder joints, the deformation of the workpiece, and the damage of the solder joints. Technical problems such as corrosion and oxidation

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