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Pit penetration collection system

A technology of acquisition system and transmitter, which is used in electrical/magnetic detection for logging records, detection with electromagnetic waves, etc., can solve the problem of heavy labor, low efficiency of underground wireless electromagnetic wave data acquisition, and long field work time question

Active Publication Date: 2017-01-18
HUAINAN MINING IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a pit penetration acquisition system, which is used to solve the problems of low efficiency of underground wireless electromagnetic wave data acquisition, large labor workload and long working hours on site in the prior art

Method used

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Experimental program
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Embodiment 1

[0019] Coal seam working face mining mainly adopts wireless electromagnetic wave technology. The pit penetration method is generally carried out between two roadways. For example, a launch point is arranged in the air roadway to transmit electromagnetic waves of a certain frequency into the coal seam, and a receiver is placed in the machine roadway to receive the electromagnetic field strength. H signal, when the electromagnetic wave encounters a change in the electrical properties of the medium during coal seam propagation, the electromagnetic wave is absorbed or shielded, and the received signal is significantly weakened or no effective signal can be received. If it is received at multiple points along the roadway, the so-called perspective anomaly is formed. In order to improve the collection efficiency of underground wireless electromagnetic wave data, the present invention adopts a single-send, multiple-receipt, and double-lane alternate parallel acquisition method, and app...

Embodiment 2

[0025] Figure 2A It is a schematic diagram of the transmission and reception of the first transmitter and the first receiver of the second pit penetration acquisition system of the embodiment of the present invention, Figure 2B It is a schematic diagram of transmission and reception of the second transmitter and the second receiver of the second pit penetration acquisition system according to the embodiment of the present invention.

[0026] Such as Figure 2A As shown, a first transmitter 1 is set in the wind lane 2, a plurality of first receivers 4 are set in the machine lane 3, and the first transmitter 1 moves to a plurality of first transmitting points 7 in the wind lane 2 in turn , and transmit electromagnetic waves at each first transmitting point 7, each first receiver 4 is set corresponding to at least one first transmitting point 7, and is used to transmit electromagnetic waves at the corresponding first transmitting point 7 at the first transmitter 1 , the first...

Embodiment 3

[0036] image 3 It is the flow chart of the three-pit transparent collection system in the embodiment of the present invention, as image 3 Shown:

[0037] Step 101: According to the inclination length, design the emission point distance, the reception point distance, and the collection distance of the working face to ensure that the electromagnetic wave penetrates the coal seam.

[0038] In the stage of roadway design and layout, it is necessary to fully consider the long tendency of the coal seam working face. Generally, the receiving fan angle of each emission point does not exceed 45 degrees, that is, the distance M between emission points per 100 meters of surface width does not exceed 42m, mainly to prevent electromagnetic waves from being exposed at large angles. The refraction effect that occurs when entering a coal seam. Set up multiple transmitting points in one roadway, and arrange corresponding receiving points in another roadway accordingly; distribute multiple ...

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Abstract

The invention provides a tunnel radio-wave penetration collection system. The tunnel radio-wave penetration collection system comprises at least one first transmitter which is arranged in a ventilating roadway, and at least one first receiver is arranged in a machine roadway; at least one second transmitter is arranged in the machine roadway, and at least one second receiver is arranged in the ventilating roadway; the first transmitter and the second transmitter are used for alternately emitting electromagnetic waves; the first receiver is used for receiving field intensity signals H produced by the electromagnetic waves emitted by the first emitter; the second receiver is used for receiving field intensity signals H produced by the electromagnetic waves emitted by the second transmitter. Thus, the problems that underground wireless electromagnetic wave data collection efficiency is low, the amount of labor of personnel is large, and on-site working time is long are solved.

Description

technical field [0001] The embodiment of the present invention relates to a collection system, in particular to a pit penetration collection system. Background technique [0002] Coal seam mining requires a general understanding of the geological development that affects safe and efficient production; in order to meet the requirements of safe production, the introduction of high-efficiency and high-precision wireless electromagnetic wave perspective technology in the field of underground geophysical prospecting. Among them, tunnel radio wave perspective method, also known as pit penetration method. The basic principle of the pit penetration method is to study various wireless electromagnetic wave perspective anomalies caused by the influence of coal seams, various structures and geological bodies on electromagnetic waves in the mining area, so as to carry out geological inference and interpretation. [0003] At present, when wireless electromagnetic wave perspective technol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/30
Inventor 孟庆彪汪国胜曹赵飞刘勇杜磊史心全程为
Owner HUAINAN MINING IND GRP