Dry ice spraying device and dry ice spraying method

Abstract

The invention discloses a dry ice spraying device which comprises a compressed air nozzle, a mixing chamber, an oscillating cavity, a diffusion pipe and a collision wall. A mounting through hole and a dry ice inlet are arranged on the mixing chamber, the compressed air nozzle is embedded in the mounting through hole, the mixing chamber is communicated with the oscillating cavity through a dry ice spraying-in passage, a dry ice outlet is arranged on the oscillating cavity, the diffusion pipe is mounted at the dry ice outlet, and the collision wall is arranged in the oscillating cavity and is opposite to the dry ice spraying-in passage. Two-throat-pipe spraying is adopted, so that conveying of dry ice particles is less prone to blockage when the dry ice spraying device works, continuous and smooth feeding of the dry ice particles is realized, and working efficiency is improved; the oscillating cavity is designed, and by self-excitation oscillating structure conditions and continuous border conditions of the oscillating cavity, continuous dry ice spray flow can be converted into pulse spray flow, spraying distance is long, and continuous quantity is large. The invention discloses a dry ice spraying method adopting the dry ice spraying device.

Description

technical field [0001] The invention relates to the technical field of dry ice blasting, in particular to a dry ice blasting device and method. Background technique [0002] Traditionally, dry ice cleaning equipment can only spray dry ice particles in a short distance due to its spraying device, which has low work efficiency and consumes manpower; moreover, the transportation of dry ice particles is easy to block, and it is difficult to continuously supply dry ice particles, which is likely to cause delays in cleaning work; in addition, due to the traditional The injection device of dry ice cleaning equipment has low injection pressure and weak impact force, making it difficult to clean heavily polluted working objects. Contents of the invention [0003] Based on this, the present invention overcomes the defects of the prior art and provides a dry ice blasting device, which can not only realize long-distance spraying and improve work efficiency, but also has high spraying ...

AI Technical Summary

Problems solved by technology

[0002] Traditionally, dry ice cleaning equipment can only spray dry ice particles in a short distance due to its spraying device, which has low work efficiency and consumes manpower; moreover, the transportation of dry ice particles is easy to block, and it is difficult to continuously supply dry ice particles, which is likely to cause delays in cleaning work; in addition, due to the traditional The injection device of dry ice cleaning equipment has low injection pressure and weak impact force, making it difficult to clean heavily polluted work objects

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