Steel pipe galvanizing pretreatment equipment

Abstract

The invention belongs to the technical field of metal treatment, and particularly relates to steel pipe galvanizing pretreatment equipment which comprises a cleaning frame. Conveying units are arranged between the inner walls of the cleaning frame; a cleaning unit is arranged between the conveying units; and a drive unit is arranged on the inner wall of the lower side of the cleaning frame. The steel pipe galvanizing pretreatment equipment provided by the invention can solve the following problems existed in existing steel pipe acid pickling operation before galvanizing: (1) a steel pipe is simply placed into an acid pickling pool so as to be soaked, an oxidation layer and stains on the surface of the steel pipe cannot be cleaned during steel pipe soaking, and the surface of the steel pipeneeds to be wiped and cleaned after the steel pipe is taken out from the acid pickling pool, so that the steel pipe soaking operation and the comprehensive surface cleaning operation cannot be accomplished integrally, and the cost of steel pipe galvanizing is increased; and (2) in traditional steel pipe acid pickling operation, steel pipes in batch are concentratedly placed in the acid picking pool, and the single feeding quantity is large, so that the surfaces of the steel pipes cannot be ensured to comprehensively contact an acid pickling solution.

Description

technical field [0001] The invention belongs to the technical field of metal treatment, and in particular relates to a steel pipe galvanizing pretreatment equipment. Background technique [0002] Galvanized steel pipe is an alloy layer produced by reacting molten metal with an iron substrate, thereby combining the substrate and the coating. Hot-dip galvanizing is to first pickle the steel pipe to remove the oxide layer and stain on the surface of the steel pipe, and then galvanize the steel pipe through a series of processes. The effect and quality of steel pipe pickling directly affect the effect of galvanizing the steel pipe, but The following problems exist in the pickling operation of existing steel pipes before galvanizing. The first problem is that the steel pipes are simply placed in the pickling tank for soaking, and the oxide layer and stains on the surface of the steel pipes cannot be removed during the soaking of the steel pipes. After taking it out of the washin...

AI Technical Summary

Problems solved by technology

Hot-dip galvanizing is to first pickle the steel pipe to remove the oxide layer and stain on the surface of the steel pipe, and then galvanize the steel pipe through a series of processes. The effect and quality of steel pipe pickling directly affect the effect of galvanizing the steel pipe, but The following problems exist in the pickling operation of existing steel pipes before galvanizing. The first problem is that the steel pipes are simply placed in the pickling tank for soaking, and the oxide layer and stains on the surface of the steel pipes cannot be removed during the soaking of the steel pipes. After taking it out of the washing pool, wipe and remove the surface. It is impossible to complete the immersion of the steel pipe and the comprehensive cleaning of the surface, which increases the cost of galvanizing the steel pipe. The second problem is that batches of steel pipes are placed in the acid pickling operation in the traditional steel pipe pickling operation. In the washing pool, there is a large amount of single feeding, which cannot ensure that the surface of the steel pipe can fully contact with the pickling solution, which affects the quality of the pickling of the steel pipe. It is necessary to manually control the delivery of the steel pipe to the pickling pool, which cannot carry out continuous operation and low work efficiency.

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