Sand-blasting, sand-returning and dust-removing integrated non-contact double-tube spray gun

Abstract

The invention discloses a sand-blasting, sand-returning and dust-removing integrated non-contact double-tube spray gun. The spray gun comprises a sand return cavity, an air curtain cavity, a sand return pipe, two straight nozzles, a breather pipe and a mechanical arm clamping handle. The sand return cavity is of a hollow columnar structure with an opening in the front end; the two straight nozzlesare arranged in the sand return cavity; the rear ends of the straight nozzles are connected with the sand pipe connecting piece; the air curtain cavity is formed in the front end of the outer side ofthe sand return cavity; an air curtain guide cover is arranged at the front end of the air curtain cavity; the rear end of the air curtain cavity is connected with the breather pipe; the rear end ofthe breather pipe is connected with an air source; the mechanical arm clamping handle is arranged at the rear end of the outer side of the sand return cavity, the sand return pipe communicates with the sand return cavity; and the rear end of the sand return pipe is connected with a vacuum sand suction machine. The spray gun is novel in structure, sand blasting, recycling and dust removing are conducted at the same time, a workpiece non-contact operation mode is used, the spray gun can be used in cooperation with a movement mechanism, and work efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of sandblasting equipment, and in particular relates to a non-contact double-pipe spray gun integrated with sandblasting, returning sand and removing dust. Background technique [0002] In the manufacture and maintenance of super-large steel components such as ships, bridges, marine engineering and wind power, due to the large area, there is no dedicated sandblasting room. Generally, only temporary sheds or outdoor sandblasting are built, and there is no dedicated sand return and dust removal device, resulting in Dust pollution and deterioration of the working environment; on the other hand, the area of ​​the steel component is large, the nozzle cannot be reached, and it needs to be moved continuously. Manual movement is labor-intensive and the work efficiency is low. Contents of the invention [0003] In order to solve the above problems, the present invention discloses a non-contact double-pipe spray gun...

AI Technical Summary

Problems solved by technology

[0002] In the manufacture and maintenance of super-large steel components such as ships, bridges, marine engineering and wind power, due to the large area, there is no dedicated sandblasting room. Generally, only temporary sheds or outdoor sandblasting are built, and there is no dedicated sand return and dust removal device, resulting in Dust pollution and deterioration of the working environment; on the other hand, the area of ​​the steel component is large, the nozzle cannot be reached, and it needs to be moved continuously. Manual movement is labor-intensive and the work efficiency is low

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