300-series stainless steel checkered plate pickling system and process

Abstract

The invention discloses a 300-series stainless steel checkered plate pickling system which comprises an unwinding mechanism, a straightening mechanism, a welding mechanism, an annealing mechanism, a pickling mechanism, a cleaning mechanism, a drying mechanism and a winding mechanism. The cleaning mechanism comprises a cleaning pool, a vertical brushing and sweeping mechanism, a horizontal brushing and sweeping mechanism, an auxiliary adsorption mechanism and a jet flushing mechanism. The vertical brushing and sweeping mechanism, the horizontal brushing and sweeping mechanism, the auxiliary adsorption mechanism and the jet flushing mechanism are arranged in the cleaning pool. The jet flushing mechanism is located between the vertical brushing and sweeping mechanism and the horizontal brushing and sweeping mechanism. A cover plate is arranged at the top of the cleaning pool; and a circular through groove is formed in the cover plate. A plurality of turning supporting rollers and a set of supporting plates are arranged in the cleaning pool. According to the system, the cleaning mechanism is provided with the vertical brushing and sweeping mechanism, the horizontal brushing and sweeping mechanism and the jet flushing mechanism, and acid liquor and reaction compounds on the stainless steel surface can be quickly and perfectly cleaned away through sequential use of the mechanisms.

Description

technical field [0001] The invention belongs to the technical field of stainless steel plate pickling, in particular to a 300 series stainless steel checkered plate pickling system and a process thereof. Background technique [0002] During the production process of stainless steel plate, there will be welding, annealing, pickling, cleaning, drying and other process sequences; [0003] 1) After pickling, the surface of the stainless steel plate will be cleaned with acid solution through the cleaning mechanism; if the acid solution is not cleaned, spots, water stains and black spots will remain on the surface after drying; [0004] 2) Wherein the pickling process is particularly important, the pickling process is not complete, there will be oxide skin on the surface of the stainless steel, which will reduce the surface quality; the existing pickling process usually uses sulfuric acid pickling solution and mixed acid pickling solution, and the mixed acid pickling solution incl...

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Problems solved by technology

[0004] 2) Wherein the pickling process is particularly important, the pickling process is not complete, there will be oxide scales on the surface of the stainless steel, which will reduce the surface quality; the existing pickling process usually uses sulfuric acid pickling solution and mixed acid pickling solution, and the mixed acid pickling solution includes Hydrofluoric acid and nitric acid are usually divided into mixed acid one stage, mixed acid two stage, mixed acid three stage pickling in turn; NOx will be produced in the mixed acid pickling section, polluting the atmosphere;

[0005] At the same time, compared with the flat plate, the checkered plate will produce more scale after annealing, it will take longer to pass through the pickling section, and the production efficiency is relatively low

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