Ship body section weld seam derusting device

Abstract

The invention discloses a ship body section weld seam derusting device. The ship body section weld seam derusting device comprises a main engine and a working cover; the working cover comprises a cavity with an opening; the opening of the cavity faces a to-be-derusted weld seam; the cavity is provided with a first joint and a second joint which communicate with the cavity; the main engine comprises an output portion and a receiving portion; the output portion communicates with the first joint through a first pipeline and is used for delivering high-pressure gas mixed with a collider into the cavity and sprinkling the high-pressure gas onto the to-be-derusted weld seam; and the receiving portion communicates with the second joint through a second pipeline and is used for recycling and conveying the collider and dropped iron rust into the receiving portion. Through an output-receiving closed loop structure, junction is performed on the derusting-receiving process, the collider collides with the iron rust attached to the weld seam, the iron rust is vibrated to fall off and then directly enters the receiving portion along with the gas flow in the cavity instead of being discharged outof the cavity, the whole derusting-receiving process is isolated from the outside, and thus the problem that a large amount of dust is generated by a traditional derusting mode is solved.

Description

technical field [0001] The application relates to the field of shipbuilding, in particular to a derusting device for segmental weld seams of a hull. Background technique [0002] During shipbuilding, according to the characteristics of the hull structure, the production conditions of the shipyard, and the requirements of the construction process, the hull is reasonably divided into several hull structure sections that form independent assembly units, and then each section is assembled and welded to form the entire hull structure; in the hull The segmental welding derusting operation in the construction process is very important, and it is an important part of the hull coating operation. Only when the derusting is complete can the quality of the subsequent hull coating be guaranteed. [0003] The inventors have found that most shipyards currently perform derusting operations on segmented welds mainly relying on manual labor. The construction personnel use traditional hand-hel...

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Problems solved by technology

[0003] The inventors have found that most shipyards currently perform derusting operations on segmented welds mainly relying on manual labor. The construction personnel use traditional hand-held derusting grinding wheels to derust the segmented welds of the hull, and then carry out the coating operation. In this process, the use of hand-held derusting grinding wheels not only has low work efficiency, but also produces a large amount of rust and inhalable dust, which is difficult to meet the needs of environmental protection and derusting, and will seriously endanger the health of workers

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