Method for removing scale and dirt from surface of steel plate

A technology for steel plates and dirt, applied in chemical instruments and methods, cleaning methods and utensils, cleaning methods using liquids, etc., can solve problems such as waste of resources and poor cleaning effect

Inactive Publication Date: 2010-08-04
CNPC BOHAI EQUIP MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for removing scale and dirt on the surface of the steel plate. By rationally setting the nozzles, t

Method used

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  • Method for removing scale and dirt from surface of steel plate
  • Method for removing scale and dirt from surface of steel plate
  • Method for removing scale and dirt from surface of steel plate

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Embodiment Construction

[0011] The method for removing scale and dirt on the surface of the steel plate 2 provided by the present invention is to spray the high-pressure fluid toward the surface of the steel plate 2 by means of the nozzle 1 for spraying the high-pressure fluid, and the high-pressure fluid hits the surface of the steel plate 2 to remove the dirt and scale on the surface of the steel plate 2; Among them: the incident angle β of nozzle 1 is 5°~15°, that is, the angle between the center line of nozzle 1 (the direction of sprayed water flow) and the vertical line on the surface of steel plate 2, see figure 1 . The deflection angle γ of the nozzle 1 is 15°, that is, the angle between the projection line of the centerline of the nozzle 1 on the surface of the steel plate 2 and the horizontal vertical line in the direction of advancement of the steel plate 2, see figure 2 , wherein the direction indicated by the arrow is the advancing direction of the steel plate 2 .

[0012] The arrangeme...

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PUM

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Abstract

The invention discloses a method for removing scale and dirt from the surface of a steel plate. The method comprises the following steps: spraying high-pressure fluid to the surface of the steel plate by using a nozzle, and making the high-pressure fluid impact the surface of the steel plate to remove the scale and the dirt from the surface of the steel plate, wherein the incidence angle of the nozzle is 5 to 15 degrees, and the deflection angle is 15 degrees. The method can achieve the purposes of thoroughly cleaning the surface of the steel plate and saving resources.

Description

technical field [0001] The invention relates to a method for cleaning a steel plate, in particular to a method for removing scale and dirt on the surface of a steel plate with a high-pressure fluid. Background technique [0002] With the rapid development of oil and natural gas industry and urban pipeline network, various oil and gas pipelines have started construction one after another, and the requirements for steel pipes are also increasing. In longitudinal submerged arc welded pipe production enterprises, the surface cleanliness of steel plates has always been an important link that affects product quality. Foreign LSAW pipe production lines are all built in steel plate manufacturing enterprises, and are produced on a monthly basis according to contract orders. The storage time of steel plates is relatively short, so there is no corrosion on the surface of steel plates. However, most domestic LSAW pipe enterprises are far away from the steel mills, and the required stee...

Claims

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Application Information

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IPC IPC(8): B08B3/02
Inventor 武占芳龚健
Owner CNPC BOHAI EQUIP MFG
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