Surface derusting system for ship hull plate

Abstract

The invention provides a surface derusting system for a ship hull plate. The surface derusting system comprises a wall climbing robot main body, a safety device, a sandblasting derusting device, an air compressor, an abrasive delivery system, a vacuum negative pressure recovery system, an abrasive separation and recycling system and a control cabinet. The safety device is arranged on a ship main body. The wall climbing robot main body is connected to the safety device. The sandblasting derusting device is arranged on the wall climbing robot main body. A sand feeding pipe joint of the sandblasting derusting device is communicated with the abrasive delivery system. A sand returning pipe joint is communicated with a vacuum recovery system. The system utilizes the wall climbing robot as a moving main body to carry out sandblasting derusting on large aloft work structural members such as a large container, walls of a ship and electric power stations based on a sandblasting method, realizesabrasive, dust and rust recovery, separation and recycling based on vacuum negative pressure, greatly reduces a cost, improves sandblasting derusting efficiency, is environmentally friendly and savesenergy in the process, has high aloft work feasibility, and prevents environmental pollution and health hazard.

Description

Technical field [0001] The invention relates to coating manufacturing technology, in particular, to a surface rust removal system for hull shell plating, especially a rust removal system for large splicing welds on the surface of a ship body. Background technique [0002] The painting work of the hull sections can be carried out in the workshop, but after the hull sections are tailor-welded, they can only be painted on the dock site due to their large size. A large number of tailor-welded seams need to be surface treated before painting. Rust, the second is to make the surface reach a certain roughness. Nowadays, manual sand blasting is usually used to clean the surface, but the weld seam in the final assembly of the hull is very long, the sandblasting workload is large, the efficiency is low, the labor intensity of the workers is high, the working conditions are harsh, and the dust and noise are harmful to people. The health impact of In addition, the artificially polished dus...

AI Technical Summary

Problems solved by technology

[0004] After searching and analyzing the existing technical documents, it was found that "a ship wall rust removal and wall climbing robot" disclosed in the Chinese patent document with the patent publication number CN201633804U, this invention uses ultra-high pressure water jets for derusting, but the patent only There is an explanation of the robot, but it does not include ultra-high pressure water and recovery systems, ground mobile equipment, and control systems. Moreover, the crawler-type traveling mechanism and the permanent magnetic adsorption unit are installed on the crawler. The friction force between them is too large, and it is difficult to turn; the Chinese patent document with the patent publication number CN101863294 discloses "a magnetic gap wall-climbing robot for dry and wet environments", which uses ultra-high pressure pure water jets to remove Rust, the pneumatic (or electric) motor drives the crawler to walk, and the adsorption units composed of magnetic blocks are placed on both sides of the crawler respectively and do not contact the steel surface of the operation to form an adjustable magnetic gap. The magnetic adsorption unit adopts non-contact type, the ground friction is slightly smaller, but the design of the crawler-type walking structure makes the body heavier and turning is more difficult

[0005] In addition, the use of ultra-high pressure water as the working medium for rust removal generally requires a working pressure of at least 150Mpa. The rust remover is complicated and very expensive. The problem of "flash rust" has limited the application of high-pressure water derusting methods. Sand blasting is simple and convenient, with high derusting efficiency and good quality. If the recovery of abrasives, rust and dust is solved, then An economical, simple and effective way to remove rust

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