阅读说明：本技术 一种船舶表面五层漆除漆工艺 (Ship surface five-layer paint removing process ) 是由 黄川� 王朗 于 2019-04-15 设计创作，主要内容包括：本发明公开了一种船舶表面五层漆除漆工艺,其特征在于,包括以下步骤确定船舶表面最外五层漆的漆层厚度以及要除漆的范围；设定高压泵、清洗机器人的工作参数：设置高压泵的工作参数为转速900-1800rpm,压力1800-2200bar,清洗机器人的工作参数为喷盘喷嘴总流量72-76L/min,行走速度1.6-2cm/s,喷盘工作宽度500-900mm,喷盘雾化底座旋转速度1500-1800rpm；由高压泵输出高压水,经清洗机器人的喷盘输出到作业面,在要除漆的范围进行高压水射流除去最外五层漆。本发明除漆工艺可以有选择性的除去被腐蚀涂层,充分利用完好涂层,节省了涂料成本,提高作业效率缩短维修工期。(The invention discloses a ship surface five-layer paint removing process which is characterized by comprising the following steps of determining the thickness of a paint layer of the outermost five-layer paint on the surface of a ship and the range of the paint to be removed; setting working parameters of a high-pressure pump and a cleaning robot: setting the working parameters of the high-pressure pump as the rotation speed of 900 plus 1800rpm and the pressure of 1800 plus 2200bar, setting the working parameters of the cleaning robot as the total flow of the spray nozzle of the spray disk of 72-76L/min, the walking speed of 1.6-2cm/s, the working width of the spray disk of 500 plus 900mm and the rotation speed of the atomization base of the spray disk of 1500 plus 1800 rpm; high-pressure water is output by a high-pressure pump, is output to an operation surface by a spray disk of a cleaning robot, and high-pressure water jet is carried out in the range of paint removal to remove the outermost five layers of paint. The paint removing process can selectively remove corroded coatings, fully utilizes intact coatings, saves the coating cost, improves the operation efficiency and shortens the maintenance period.)

1. A ship surface five-layer paint removing process is characterized by comprising the following steps:

step 1: determining the thickness of the outermost five layers of paint on the surface of the ship and the range of paint to be removed;

step 2: setting working parameters of a high-pressure pump and a cleaning robot: the thickness of the outermost first paint layer is 80-150 mu m, the thickness of the second paint layer is 80-150 mu m, the thickness of the third paint layer is 320 mu m, the thickness of the fourth paint layer is 40-50 mu m, the thickness of the fifth paint layer is 30-120 mu m, the working parameters of the high-pressure pump are set to be 900-1800rpm and 1800-2200bar, the working parameters of the cleaning robot are 72-76L/min of the total flow of the spray disk nozzle, 1.6-2cm/s of the walking speed, 900mm of the working width of the spray disk and 1500-1800rpm of the atomizing base of the spray disk;

and step 3: high-pressure water is output by a high-pressure pump, is output to an operation surface by a spray disk of a cleaning robot, and high-pressure water jet is carried out in the range of paint removal to remove the outermost five layers of paint.

2. The marine surface five-layer paint removing process according to claim 1, wherein a sealing cover is installed outside a spray tray of the cleaning robot, the sealing cover is communicated with a vacuum system, vacuum suction is synchronously performed during jet paint removing, sewage in the sealing cover is sucked away, and the vacuum degree in the sealing cover is lower than-20% or 0.02 MPa.

3. The marine surface five-layer paint removal process according to claim 1, wherein an included angle between a nozzle of the cleaning robot spray plate and the outer surface of the ship is 15-45 °.

Technical Field

The invention relates to the field of ship paint removal, in particular to a ship surface five-layer paint removal process.

Background

In a continuous low-risk shipping market, the shipowner performs cost saving and efficiency improvement to deal with the market, wherein the shipping repair, annual repair and five-year special inspection dock repair account for more than 60% of the operating cost of the shipowner, the ship is corroded by seawater at the time of marine navigation, and rust removal and corrosion prevention are main projects during each ship repair. At present, the paint and rust removal of ship planking generally adopts a sand blasting process: compressed air is used as power to form a high-speed spray beam to spray a spray material to the surface of a workpiece to be treated at a high speed, the surface of a matrix is cleaned and coarsened by using the impact action of high-speed sand flow, and the sand-blasting paint-removing rust-removing process has the following defects: the selective removal of only the surface rust layer is not possible, protecting the coating which is not corroded but below the surface layer; the used media are iron sand, carborundum, diamond balls and the like, and a lot of dust is generated in the manufacturing process of the spray materials, so that the dust pollution is serious in the using process, and the damage to the environment and personnel is great.

The outer surface of the existing ship is generally coated with 4-7 layers of paint, one or more layers of the surface are usually removed when paint is required to be removed, and the whole surface is not required to be removed, but the existing ship surface paint removal and rust removal method removes all paint layers at one time, so that not only is the maintenance cost increased, but also time and labor are wasted.

Disclosure of Invention

The invention aims to solve the problems and provides a technology for removing five layers of paint on the surface of a ship.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a ship surface five-layer paint removing process is characterized by comprising the following steps:

step 1: determining the thickness of the outermost five layers of paint on the surface of the ship and the range of paint to be removed;

step 2: setting working parameters of a high-pressure pump and a cleaning robot: the thickness of the outermost first paint layer is 80-150 mu m, the thickness of the second paint layer is 80-150 mu m, the thickness of the third paint layer is 320 mu m, the thickness of the fourth paint layer is 40-50 mu m, the thickness of the fifth paint layer is 30-120 mu m, the working parameters of the high-pressure pump are set to be 900-1800rpm and 1800-2200bar, the working parameters of the cleaning robot are 72-76L/min of the total flow of the spray disk nozzle, 1.6-2cm/s of the walking speed, 900mm of the working width of the spray disk and 1500-1800rpm of the atomizing base of the spray disk;

and step 3: high-pressure water is output by a high-pressure pump, is output to an operation surface by a spray disk of a cleaning robot, and high-pressure water jet is carried out in the range of paint removal to remove the outermost five layers of paint.

Furthermore, a sealing housing is arranged outside a spray disk of the cleaning robot, the sealing housing is communicated with a vacuum system, and the vacuum system synchronously sucks and sucks sewage in the sealing housing in a vacuum manner during jet flow paint removal, wherein the vacuum degree in the sealing housing is lower than-20% or 0.02 MPa.

Furthermore, the included angle between the nozzle of the spray disk of the cleaning robot and the outer surface of the ship is 15-45 degrees.

The invention has the following beneficial effects:

(1) and (3) environmental protection: the dust pollution is avoided, the environment and operators are not damaged, the dust fine powder is recycled and intensively discharged together with the wastewater, and the haze generated by the traditional sand blasting process is greatly improved;

(2) high efficiency: compared with the method that the workpiece is cleaned after being treated by the sand blasting process, the workpiece treated by the high-pressure water robot can be immediately sprayed, the rust and paint removing effect is far better than that of the sand blasting process, the roughness or the salinity of the treated workpiece after rust removal conforms to the coating standard, and secondary treatment similar to sand blasting is not needed;

(3) the cost is saved: the corrosion depths of all the surfaces are different, and according to different corrosion degrees, the high-pressure water rust removal process can accurately treat rust layers and keep available coatings, so that a large amount of coating cost and labor cost can be saved, the pollution of waste materials is reduced, and the construction efficiency is greatly improved.

Detailed Description

The technical solution of the present invention will be further described with reference to the following examples.