A residual liquid removal device and method for hot-dip galvanized steel pipe

Abstract

The invention discloses a residual liquid removal device for hot-dip galvanized steel pipes in the technical field of hot-dip galvanized steel pipes, comprising an outer sleeve and an inner sleeve, the diameter of the outer sleeve is larger than that of the inner sleeve, and the The outer sleeve and the inner sleeve are equipped with a residual liquid removal assembly. After the device is installed in the present invention, the electric telescopic rod is driven to drive the rollers, so that the top and bottom rollers are respectively close to the top and bottom inner walls of the steel pipe, and then the double shaft is driven The motor, the double-axis motor drives the adjustable telescopic rod through the bevel gear set 1, and the adjustable telescopic rod drives the moving wheel through the bevel gear set 3, so that the outer sleeve moves to the right on the outer wall of the steel pipe, and the outer sleeve moves to the right. The inner sleeve is pulled by the pull rope to move to the left in the steel pipe to realize the synchronous removal of internal and external residual liquid. On the one hand, the use cost is greatly reduced, and the work efficiency is improved at the same time.

Description

technical field [0001] The invention relates to the technical field of hot-dip galvanized steel pipes, in particular to a residual liquid removal device and method for hot-dip galvanized steel pipes. Background technique [0002] In the existing hot-dip galvanizing process, the steel pipe is immersed in hot-melted zinc liquid, and after the steel pipe is taken out after galvanizing, a large amount of zinc liquid will remain on the steel pipe. If these zinc liquids are not completely removed, they will be cooled into small zinc nodules in the galvanized pipe, which will affect the quality of the galvanized pipe. [0003] At present, most of the residual liquid removal devices used for hot-dip galvanized steel pipes can only remove the residual liquid on the outer wall of the steel pipe, because some steel pipes are hollow cylindrical, and there will be residual liquid inside, and the existing residual liquid removal devices cannot achieve internal and external cleaning. The ...

AI Technical Summary

Problems solved by technology

If the zinc liquid is not completely removed, it will cool into small zinc nodules in the galvanized pipe, which will affect the quality of the galvanized pipe.

[0003] At present, most of the residual liquid removal devices used for hot-dip galvanized steel pipes can only remove the residual liquid on the outer wall of the steel pipe, because some steel pipes are hollow cylindrical, and there will be residual liquid inside, and the existing residual liquid removal devices cannot achieve internal and external cleaning. The synchronous removal of residual liquid often requires a separate removal equipment, which has certain limitations, and the effect of residual liquid removal is poor, and it also increases the cost of use. For this reason, we propose a residual liquid for hot-dip galvanized steel pipes. Cleaning device and cleaning method

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