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High-pressure water descaling system for hot continuous rolling production line

A high-pressure water descaling and production line technology, which is applied to the descaling system of strip rolling, the high-pressure water descaling system, and the field of slab, can solve the problems of increased production cost, unfavorable energy saving, large slab temperature drop, etc. Achieve the effect of reducing equipment cost, significant power consumption and small footprint

Active Publication Date: 2008-03-26
CHINA ERZHONG GRP DEYANG HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing descaling uses high-flow high-pressure water. When the high-pressure water described in the above patent is used for descaling, the water consumption is large, and due to the large amount of water, the temperature drop of the slab is large, so it is necessary to increase the heating temperature of the slab Or increase the power of the main motor of the rolling mill, which is not conducive to saving energy and increasing production costs

Method used

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  • High-pressure water descaling system for hot continuous rolling production line
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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with FIG. 2 .

[0014] The main equipment configurations of the present invention include: self-cleaning filter 1, AC motor 2, high-pressure plunger pump 3, electrical control cabinet 4, bypass unloading valve group 5, electric control valve and check valve group 6, descaling injection It consists of valve group 7, low-pressure pre-flush water valve group 8, descaling header and descaling nozzle 9, etc. Compared with the existing equipment, high-pressure water tank 12, high-pressure gas tank 13, air compressor 14, minimum liquid level valve 11 and other devices are omitted, which not only simplifies the equipment composition, but also reduces the operating costs of the above-mentioned equipment.

[0015] In the present invention, the descaling pump group uses a high-pressure plunger pump to directly provide high-pressure water to the descaling system, and the system pressure can reach 25MPa-5...

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Abstract

The present invention relates to a high-pressure water descaling system which can be used in the rolling process in the iron and steel metallurgical field. In particular, it relates to a descaling system which can be used in the process of rolling slab and sheet strip. It is characterized by that said invention is aimed at providing an ultrahigh-pressure small-flow high-pressure water descaling system for sheet bar hot continuous rolling production line. The water-out pressure of its descaling pump group is 25MPa-50MPa, and the water flow rate of its descaling nozzle is 20-40L / min..

Description

Technical field: [0001] The invention relates to a high-pressure water descaling system used in the rolling process in the field of iron and steel metallurgy, and is particularly suitable for the descaling system of slab and strip rolling. Background technique: [0002] With the development of the metallurgical industry and the improvement of user requirements, iron and steel production enterprises have also put forward higher requirements for the improvement of the quality of billet surface descaling. At present, our country is vigorously advocating energy saving and reducing environmental pollution. The control and saving of water demand and usage of high-pressure water descaling system is in line with the current social and industry development requirements. [0003] At present, the common high-pressure water descaling system of slab and strip mills in China is generally composed of high-pressure water pump station, control valve group, high-pressure pipeline, descaling b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B45/08B21C43/00
Inventor 崔永刚
Owner CHINA ERZHONG GRP DEYANG HEAVY IND
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