Multifunctional pipe pickling device and picking method

Abstract

The invention discloses a multifunctional pipe pickling device and a pickling method. The pickling device comprises a pickling tank assembly, an acid storage tank and an electric control system, wherein a liquid inlet and a liquid outlet are formed in each of two ends of the pickling tank assembly; the liquid inlets in the two ends of the pickling tank assembly are separately connected with a first reversing valve through a check valve; the first reversing valve is connected with the acid storage tank through an acid pump; the liquid outlets in the two ends of the pickling tank assembly are both connected with a second reversing valve; the second reversing valve is connected with the acid storage tank through an adjusting valve; the first reversing valve and the second reversing valve are both connected with the electric control system; the pickling tank assembly comprises a pickling tank, a cover plate and fixture mechanisms; the fixture mechanisms are located on two ends of the pickling tank; and pipes are located on the fixture mechanisms. The multifunctional pipe pickling device is applicable to multiple pickling requirements of pipes; the requirements of only pickling outer surfaces, only pickling inner surfaces or pickling inner and outer surfaces synchronously can be met; the production efficiency is high; the multifunctional pipe pickling device is safe and reliable; environment protection is facilitated; and the pickling quality is high.

Description

technical field [0001] The invention relates to a multifunctional pipe pickling device and a pickling method, belonging to the technical fields of metallurgy and machinery. Background technique [0002] Pickling refers to the use of acid solution to remove oxides and rust on metal surfaces, and is a method of cleaning metal surfaces. Usually done with pre-film. It mainly uses the principle that metal oxides react with acid solution to form salts that can be dissolved in acid solution to remove the metal oxide film on the metal surface. It is the pre-process or intermediate treatment of electroplating, rolling, heat treatment, enamel and other processes. [0003] The pickling process mainly includes immersion pickling, spray pickling and acid paste derusting method. Generally, immersion pickling is used; for large-scale production, spray pickling can be used. The pickling process of immersion pickling has the disadvantage that the surface quality is not easy to control, wh...

AI Technical Summary

Problems solved by technology

Generally, immersion pickling is used; for large-scale production, spray pickling can be used. The pickling process of immersion pickling has the disadvantage that the surface quality is not easy to control, while the spray pickling method is suitable for pipes with larger diameters. Low Yield

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