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Watermark control device and watermark control method for pickling surface of hot-rolled strip steel

A control method and technology of a control device, which are applied in the field of watermark control devices on the pickling surface of hot-rolled strip steel, can solve the problems of marks appearing on the surface of products, affecting product quality, and being difficult to clean, so as to prevent marks and ensure the quality of the board surface. Effect

Inactive Publication Date: 2016-05-11
PANGANG GRP PANZHIHUA STEEL & VANADIUM
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Problems solved by technology

[0002] During the pickling process of the hot-rolled strip steel, after the hot-rolled strip steel is pickled in the pickling tank, part of the acid solution remains on the surface of the strip steel, and after being squeezed and purged by a device such as a squeeze roller, the remaining acid liquid on the surface The solid salt formed by the reaction between the acid solution and the steel strip will adhere to the surface of the steel strip, and this solid salt is not easy to clean in the rinsing tank, and eventually marks will appear on the surface of the product, affecting product quality

Method used

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  • Watermark control device and watermark control method for pickling surface of hot-rolled strip steel

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Embodiment

[0018] The hot-rolled strip pickling surface watermark control device includes a pickling tank 1 and a rinsing tank 7. There are multiple sets of squeeze rollers arranged at intervals between the pickling tank 1 and the rinsing tank 7. The outlet of the pickling tank 1 corresponds to A supporting frame 4 is arranged between a group of squeezing rollers and the rinsing tank 7, and a plurality of nozzles 3 for spraying acidic rinsing water to the strip are installed on the supporting frame 4, and the nozzles 3 are connected to the rinsing tank 7 through a water delivery pipe 5, A rinsing water pump 6 is installed on the water delivery pipeline 5 , and the plurality of nozzles 3 are respectively arranged above and below the steel strip 8 .

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Abstract

The invention discloses a surface watermark control device for an acid pickling of a hot-rolled strip steel and a watermark control method, the two of which are applied to preventing marks from being formed on the surface of the strip steel. The device comprises an acid pickling tank and a rinse tank, wherein a plurality of groups of wiping rolls arranged at intervals are arranged between the acid pickling tank and the rinse tank; a support is arranged between one group of wiping rolls corresponding to the outlet of the acid pickling tank, and the rinse tank; a plurality of nozzles for spraying acidic rinsing water to the strip steel are mounted on the support; the nozzle are connected with a water source through a water delivery pipeline. The rinse tank can be used as the water source; a rinsing water pump is mounted on the water delivery pipeline. Besides, the plurality of nozzles are arranged above and under the strip steel, respectively. The method is characterized in that the acidic rinsing water is sprayed to the surface of the strip steel mainly through the nozzles and the amount of spraying is 2-30 ml / m<2>.

Description

technical field [0001] The invention relates to a hot-rolled strip steel pickling surface watermark control device used in the field of hot-rolled strip steel production and a watermark control method using the device. Background technique [0002] During the pickling process of the hot-rolled strip steel, after the hot-rolled strip steel is pickled in the pickling tank, part of the acid solution remains on the surface of the strip steel, and after being squeezed and purged by a device such as a squeeze roller, the remaining acid liquid on the surface The solid salt formed by the reaction between the acid solution and the steel strip will adhere to the surface of the steel strip, and this solid salt is not easy to clean in the rinsing tank, and eventually marks will appear on the surface of the product, affecting product quality. Contents of the invention [0003] The technical problem solved by the invention is to provide a watermark control device for pickling surface of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G3/02C23G1/08
Inventor 黄修磊周容
Owner PANGANG GRP PANZHIHUA STEEL & VANADIUM
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