Coal field drilling depth measuring device

A measuring device and depth detection technology, applied in the directions of surveying, earthwork drilling, wellbore/well components, etc., can solve the problems of depth measurement error, influence, uneven and stable structure, etc., so as to reduce personal safety hazards and avoid measurement inaccurate effect

Pending Publication Date: 2022-05-10
HUAIBEI MINING GRP EXPLORATION ENG
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Problems solved by technology

[0003] In the prior art, the depth of coalfield mining is generally detected by a vertical lift detection rod. This detection has certain limitations. When facing the inside of a coal mine, the structure inside the rock and soil is not uniform and stable. It may cause a certain degree of error in the measurement of depth and have an immeasurable impact on other aspects

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Embodiment Construction

[0019] 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 creative efforts fall within the protection scope of the present invention.

[0020] In describing the present invention, it is to be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "surrounding" etc. Indicating orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a sp...

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Abstract

The invention discloses a coal field drilling depth measuring device, which relates to the geological related field, comprises a depth detection mechanism, a signal transmission mechanism and a secondary signal receiving mechanism, and is characterized in that the depth detection mechanism, the signal transmission mechanism and the secondary signal receiving mechanism are connected through electric signals; the depth detection mechanism comprises a depth detection base plate, the top end of the depth detection base plate is provided with an air blowing mechanism access plate, one end, far away from the depth detection base plate, of the air blowing mechanism access plate is provided with an air inlet, the bottom end of the depth detection base plate is provided with an air bag recovery port, and the side wall of the bottom end of the depth detection base plate is provided with a hinge support; meanwhile, when the measuring rod is used, by arranging an independent signal transmission mechanism, the rock drilling depth in a mine pit can be measured according to the signal strength, and the problem that a traditional measuring rod is inaccurate in measurement in a rugged environment is solved; and meanwhile, potential personal safety hazards to the measuring personnel possibly caused by the fact that the measuring personnel enter an unstable environment are reduced.

Description

technical field [0001] The invention relates to geological related fields, in particular to a measuring device for coal field drilling depth. Background technique [0002] The increase in the amount of coal mining determines the gradual reduction of shallow coal resources. In order to meet market demand, the mining depth must be continuously increased. The research on corresponding mining technology also needs to develop in the direction of ultra-deep hole drilling. Now many coalfields have drilled holes deeper than 1,000 meters. The original core drilling technology and equipment for coal exploration can no longer meet the actual needs, and many disadvantages have gradually been exposed. Based on the actual production demand, it is of great significance to improve the overall efficiency of coal mining to study the construction technology of coalfield drilling with over one thousand meters of deep hole drilling and provide professional equipment. [0003] In the prior art, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/04E21B47/12
CPCE21B47/04E21B47/12
Inventor 王昆周斌乔木年宾王超李达明郭阳阳
Owner HUAIBEI MINING GRP EXPLORATION ENG
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