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Coal mine goaf detector in very-low frequency method

A technology for detection devices and gobs, applied in measuring devices, electric/magnetic exploration, geophysical measurements, etc., can solve problems such as loss of economic benefits of coal enterprises, inability to cultivate crops, and ground subsidence, and achieve convenient survey and real-time monitoring. The effect of detection and volume comparison

Inactive Publication Date: 2018-12-07
HENAN NORMAL UNIV
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  • Abstract
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Problems solved by technology

In addition, if the coal mine goaf is not backfilled, it will cause ground subsidence for a long time, and there will be a danger of ground subsidence at any time, and it will also make it impossible for crops to be cultivated
And it will bring a certain degree of loss to coal enterprises in terms of economic benefits

Method used

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  • Coal mine goaf detector in very-low frequency method
  • Coal mine goaf detector in very-low frequency method

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Embodiment Construction

[0012] 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.

[0013] see Figure 1-2 As shown, an embodiment provided by the present invention; a very low frequency method coal mine goaf detection device includes a casing 1, a whip antenna 2, a buzzer 3, a VLF signal receiver 8, a display 9, and a power switch 10 And working indicator light 11, the left side of shell 1 top is equipped with whip antenna 2, and display 9 is installed on shell 1, and VLF signal receiver 8 is installed on the top of display 9, and VLF signal...

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Abstract

The invention discloses a coal min goaf detector in a very-low frequency method. The detector comprises a casing, a whip antenna, a buzzer, a VLF signal receiver, a display, a power switch and a workindication lamp, the whip antenna is installed in the left side on the casing, the casing is provided with the display, the VLF signal receiver is installed over the display, the buzzer is installed on right of the VLF signal receiver, the work indication lamp is installed in the left under the display, and the power switch is installed on right of the work indication lamp. The detector is formedby combined use of software radio and the very-low frequency method, is smaller in size, easy to carry, low in cost, high in mobility, and capable of real-time detection, and provides convenience forexploration by technical staff.

Description

technical field [0001] The invention relates to the technical field of geological detection, in particular to a very low-frequency method coal mine goaf detection device. Background technique [0002] Coal is a very important natural resource. Although some areas in our country are rich in mineral resources, after a long period of vigorous mining and excavation by people, there will be a phenomenon of coal mining goaf, which will form coal mine goafs and goaf water areas. These mined-out areas are one of the important causes of geological disasters, which have a certain impact on people's lives, property and safety. Such as: the construction of main roads, expressways, railways, houses, etc., when passing through coal mine goafs, due to the uncertainty of the depth and range of underground coal mine goafs, the construction and safety of infrastructure will be affected. In addition, if the coal mine goaf is not backfilled, it will cause ground subsidence for a long time, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/00
CPCG01V3/00
Inventor 牛有田刘岚刘伟娜袁秋林杨豪强杨新伟林方丽闫宁段千
Owner HENAN NORMAL UNIV
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