Two-stage dry dust cleaning device and down-hole drilling machine including same

Abstract

The invention provides a two-stage dry dust cleaning device and a down-hole drilling machine including the same. The two-stage dry dust cleaning device comprises a dust catching part, a first stage dust cleaning part and a second stage dust cleaning part. The dust catching part, the first stage dust cleaning part and the second stage dust cleaning part are connected with flow guiding pipes sequentially; and a centrifugal exhaust fan with an air outlet is installed on the second stage dust cleaning part. According to the down-hole drilling machine provided with the two-stage dry dust cleaning device, rock dust generated from drilling operation is sequentially sucked into the dust catching part, the first stage dust cleaning part and the second stage dust cleaning part from the drilling positions through the sucking power of the centrifugal exhaust fan, and the rock dust is collected into the first stage dust cleaning part and the second stage dust cleaning part according the sizes of the dust particles; and tilting baffles are arranged on air flow paths in the first stage dust cleaning part and the second stage dust cleaning part, and a filtering element capable of adsorbing the light dust is arranged in the second stage dust cleaning part, so that dust sucking effect is improved, working environment and human health are protected, damage to the centrifugal exhaust fan is reduced, and using quality of the down-hole drilling machine is ensured.

Description

technical field [0001] The invention relates to the field of down-the-hole drilling machine manufacturing, in particular to a two-stage dry dust removal device and a down-the-hole drilling machine with the dust removal device. Background technique [0002] Down-the-hole drilling rigs are widely used in large, medium and small mines, hydropower, transportation and other earthwork excavation and blasting projects, and can also be used for underwater rock perforation blasting in ports and waterways. [0003] When the down-the-hole drilling rig is drilling, it will produce a large amount of rock dust, pollute the environment, endanger the operator's personal health, affect the operator's sight, hinder the operation, and affect the quality of the drilling. [0004] Therefore, existing down-the-hole drilling rigs are generally equipped with a dust removal device. The dust removal device includes a dust suction box with a dust suction chamber. The cavity is equipped with a dust ...

AI Technical Summary

Problems solved by technology

[0005] In actual operation, because part of the rock dust is relatively light, the lighter rock dust will be discharged outwards with the airflow of the dust suction fan. At this time, it will also fly everywhere and affect the environment. It is harmful to the personal health of the operator, and will gather on the dust suction fan, which is easy to damage the dust suction fan and reduce the use quality of the down-the-hole drilling rig

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