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Inside-dry and outside-wet drilling device capable of reducing flying dust pollution and drilling method

A drilling device and drilling equipment technology, which is applied in earthwork drilling, wellbore/well parts, construction, etc., can solve problems such as air pollution and flying, and achieve fast hole forming speed, high hole quality, and low content effect of dust

Active Publication Date: 2020-11-24
CHINA FIRST METALLURGICAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention proposes an internal dry external wet drilling device and drilling method that can reduce dust pollution, aiming to solve the problem of air pollution caused by flying dust during drilling construction

Method used

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  • Inside-dry and outside-wet drilling device capable of reducing flying dust pollution and drilling method
  • Inside-dry and outside-wet drilling device capable of reducing flying dust pollution and drilling method
  • Inside-dry and outside-wet drilling device capable of reducing flying dust pollution and drilling method

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Embodiment Construction

[0023] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] Device example:

[0025] see figure 1 , the figure shows the preferred structure of the dry inside and wet outside drilling device provided by this e...

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Abstract

The invention provides an inside-dry and outside-wet drilling device capable of reducing flying dust pollution and a drilling method. The device comprises drilling equipment, a dust collection cover,an air spraying mechanism and a water spraying mechanism; the drilling equipment comprises a drill rod and a drilling part, and the drilling part is connected with the drill rod; the drill rod is arranged in the dust collection cover in a penetrating mode, the drilling part is located in the dust collection cover, and the dust collection cover is used for being attached to a working face; and theair spraying mechanism is arranged on the inner wall of the dust collection cover, the water spraying mechanism is arranged on the inner wall of the dust collection cover, and the water spraying mechanism is closer to the working face compared with the air spraying mechanism. In the operation process, the water spraying mechanism can wash and capture dust-containing gas flow, so that environmentalpollution caused by the fact that untreated dust-containing blowback gas drifts into the atmosphere is reduced; and meanwhile compared with an existing drilling device, a draught fan used for formingnegative pressure in the dust collection cover and a corresponding post-treatment system can be omitted.

Description

technical field [0001] The invention relates to the technical field of foundation pit support and geological disaster slope treatment, in particular to an inner-dry and outer-wet drilling device and a drilling method capable of reducing dust pollution. Background technique [0002] As a construction method, anchor cable support is increasingly used in construction fields involving support such as geological disaster control and building foundation pit engineering. Usually, during the drilling process of drilling equipment, high-pressure airflow will cause a large amount of rock slag dust to be ejected along the hole wall, causing dust pollution in the operation, and the dust will continue to spread with the atmosphere. If the wind speed in the construction area is low , Diffusion conditions are poor, and people are dense, it will cause the environmental protection index such as PM10 and PM2.5 around the construction site to reach more than 300, seriously exceeding the atmosp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B21/015E21B21/14
CPCE21B21/015E21B21/14
Inventor 李黎倪凯郭世华邓波徐攀
Owner CHINA FIRST METALLURGICAL GROUP