Negative pressure type blast hole slag removal device for tunnel surrounding rock blasting

Abstract

The invention discloses a negative pressure type blast hole slag removal device for tunnel surrounding rock blasting, and relates to the technical field of tunnel construction. The negative pressure type blast hole slag removal device for tunnel surrounding rock blasting comprises a driving mechanism, a supporting frame is fixedly connected to the left side of the driving mechanism, an adjusting mechanism is connected to the surface of the driving mechanism in a sleeving mode, the right side of the adjusting mechanism is fixedly connected with the left side of the supporting frame, a first groove is formed in the left side of the adjusting mechanism, and a fixed mechanism is fixedly connected to the inner wall of the first groove. According to the negative pressure type blast hole slag removal device for tunnel surrounding rock blasting, dust in a blast hole enters the interior of a second shell with airflow, and the dust in the blast hole is cleaned, so that the problem that the normal service life of a hairbrush is reduced due to the fact that at present, when the dust in the blast hole is cleaned, the hairbrush is mostly adopted to clean the dust in the blast hole, but rocks arerelatively hard and are prone to scratching the hairbrush during cleaning by the hairbrush is effectively solved.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a negative pressure blasthole slag cleaning device used for tunnel surrounding rock blasting. Background technique [0002] In the blasting construction process of the tunnel, blasthole layout is the primary process, and its work quality directly affects the blasting, mining and transportation of surrounding rock. Due to the influence of geological conditions and the diversity of ore rocks, the drilled holes are sometimes blocked by the rock powder falling around the hole or hole wall. Cause blocked hole or waste hole, cause blasthole to be unable to use normally, need to re-drill, therefore need to clean up the waste residue of blasthole. [0003] At present, when cleaning the dust in the blasthole, most of the dust in the blasthole is cleaned with a brush, but the rock is relatively hard. When cleaning with a brush, the brush will rub against the rock, and the rock...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a negative-pressure gunhole slag cleaning device for tunnel surrounding rock blasting. But the rock is relatively hard. When cleaning with a brush, the brush will rub against the rock, and the rock will easily scratch the brush, resulting in a reduction in the normal service life of the brush.

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