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Reverse circulation impactor and system

A technology of impactor and reverse circulation, which is used in the extraction of undisturbed core devices, construction, and earth-moving drilling, etc., can solve the problems of polluted air, soil and water damage to the surrounding environment, and reduced drilling efficiency.

Pending Publication Date: 2022-02-08
CHANGSHA HEIJINGANG IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are large-diameter impactors on the market. When drilling large-diameter holes, especially when drilling hard rock, the drilling efficiency will be significantly reduced, and the cost of drilling tools will be significantly increased. Including the discharge of rock slag, polluting air, water and soil, and destroying the surrounding environment

Method used

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  • Reverse circulation impactor and system

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] The embodiments of the present invention are written in a progressive manner.

[0045] An embodiment of the present invention provides a reverse cycle impactor. The invention mainly solves the technical problems of lower rock drilling efficiency and increased cost in the prior art.

[0046] A reverse circulation impactor, comprising a drill pipe part 1 and a coring part 2;

[0047] The drill pipe part 1 and the coring part 2 are integrally formed, and...

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Abstract

The invention discloses a reverse circulation impactor and system. The reverse circulation impactor comprises a drill rod component and a coring component. The drill rod component and the coring component are integrally formed, and the drill rod component is arranged above the coring component; the coring component comprises a coring impactor; the bottom of the coring impactor cylinder is in a circular ring shape, and multiple positive circulation sub down-the-hole hammers are arranged on the circular ring at intervals; the drill rod component is used for providing a high-pressure air channel for the coring impactor. The device and the system are simple in structure, safe, effective, reliable and easy and convenient to operate, the drilling efficiency of the large-diameter impactor can be effectively improved, and the cost consumed by a drilling tool is reduced.

Description

technical field [0001] The invention relates to the technical field of drilling machinery, in particular to a reverse circulation impactor and its device. Background technique [0002] The down-the-hole drilling rig is a kind of construction engineering equipment for piling holes. It is suitable for drilling blast holes in metallurgy, coal, building materials, stone, railways, hydropower construction, national defense construction, and earthwork. Compared with common rock drills, it has the advantages of drilling It has the characteristics of high drilling efficiency and wide application range, and is the current general rock drilling equipment. [0003] With the development of industries such as metallurgy, coal, building materials, railways, hydropower construction, national defense construction, and earthwork, there is more demand for drilling construction with a diameter of 600mm to 1200mm and above 1200mm. [0004] At present, there are large-diameter impactors on the ...

Claims

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Application Information

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IPC IPC(8): E21B4/14E21B25/00E21B21/16
CPCE21B4/14E21B25/00E21B21/16
Inventor 杨日平朱自佳杨湘龙
Owner CHANGSHA HEIJINGANG IND CO LTD
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