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Surface preparation unit for metal strip processing lines

A technology of metal strips and processing lines, applied in electrodes, cells, plating tanks, etc., can solve problems such as the deterioration of practical problems

Active Publication Date: 2015-12-16
ТЕНОВА ТЕКНОЛОДЖИЗ (ТЯНЬЦЗИНЬ) КО., ЛТД.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its introduction into ordinary electrolyzers leads to relatively lower results than desired, since its higher efficiency only exacerbates practical problems, such as removal of sludge or gas venting produced in electrolysis. Empty can have a huge impact on the operation of the electrolyser regardless of the process employed in it

Method used

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  • Surface preparation unit for metal strip processing lines
  • Surface preparation unit for metal strip processing lines

Examples

Experimental program
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Embodiment Construction

[0022] Reference is made to the figures which show a surface preparation unit generally indicated at 10 for a metal strip processing line.

[0023] The unit comprises an electrolytic cell 12 through which the strip 11 to be treated is continuously fed in the direction of arrow F and returned on a strip suspension / submersion system consisting of a plurality of rollers.

[0024] The electrolytic cell 12 comprises a main treatment part 12a containing the electrolytic solution and two opposite end parts 12b carrying respectively an input roll 13 and an output deflection roll 14 associated with a wringer roll 15 . These ends 12 b of the electrolytic cell 12 are delimited by a wall 16 for holding the electrolyte, which rises from the bottom wall of the electrolytic cell 12 . These ends 12b do not contain electrolyte, but they contain a valve 18 at the bottom.

[0025] Immersion rolls 19 are arranged immediately downstream of the input roll 13 and immediately upstream of the output ...

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Abstract

Surface preparation unit for a metal strip processing line comprising: an electrolytic cell (12) for containing an electrolytic solution; a system for suspending / submerging the strip to be treated (11) along the The longitudinal direction (F) is continuously fed into said electrolytic cell (12); a plurality of electrode units (20) comprising upper and lower electrodes (21) comprising respectively upper and lower armatures (22), the armatures Facing the two larger surfaces of the strip (11) and spaced respectively from the strip by the so-called "upper gap" and "lower gap", the electrodes (21) are connected to the power supply system (34 ) connection, wherein the electrolytic cell (12) is shaped at the bottom to form a continuous hopper (26), wherein a hopper (26) is provided at each of the electrode units (20), the end of the hopper has a For devices that discharge waste materials in the form of undissolved scale, these waste materials are deposited at the bottom in the form of sludge.

Description

technical field [0001] The invention relates to a surface preparation unit for a metal strip processing line. In the following, the term "for surface preparation of metal strip" is used to refer to descaling and / or pickling operations. Background technique [0002] The development of metal strip processing lines has led to the development of more and more efficient processes especially for the surface preparation (i.e. descaling and pickling) of the individual surfaces, usually direct current (DC) or alternating current (AC) (less commonly used ) or combined alternating current / direct current (AC / DC) electrolytic type. This makes it possible to reduce the number of electrolyzers in the production line and / or increase the strip travel speed, while significantly increasing the tons of material processed per unit time, and due to the use of less harmful acid solutions, lower energy consumption and the same production Fewer chemicals are used thus reducing the environmental im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25F7/00C25F1/02C25D17/00
CPCC25D5/08C25D5/18C25D7/0621C25D17/02C25D17/12C25D21/04C25D21/10C25D21/12C25D21/18C25F1/02C25F7/00
Inventor S·马丁内斯F·瓜里恩托
Owner ТЕНОВА ТЕКНОЛОДЖИЗ (ТЯНЬЦЗИНЬ) КО., ЛТД.