Nethod for driving mining device

A technology for equipment and control equipment, which is applied in mining equipment, mining equipment, earth-moving drilling, etc., and can solve problems such as inability to detect gas concentration, improper operation of gas sensors, and gas sensor failures.

Inactive Publication Date: 2008-03-12
MARCO SYSTEMANALYSE UND ENTWICKLUNG GMBH
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Problems solved by technology

[0003] The problem with the known method is that, despite the use of modern monitoring techniques, methane explosions still occur in underground mines today, one of the reasons for which is deliberate manipulation of the gas sensors by operators
It is therefore known from practice to cover the gas sensor in order to increase the daily output, or to supply the gas sensor with a continuous air flow, so that the gas sensor cannot detect the gas concentration actually present in the working face
Another possible cause of a gas explosion could be a malfunctioning gas sensor

Method used

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  • Nethod for driving mining device
  • Nethod for driving mining device

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Embodiment Construction

[0027] FIG. 1 shows a greatly simplified schematic diagram of a face support with a plurality of mining locations 10 arranged next to each other, which are connected in the usual manner to a conveyor (not shown). Reference numeral 12 denotes a mining device, which can be designed as a rolling mill (Walze) or a coal plow (Hobel). The ventilation direction is indicated in the diagram by arrow W, which means that the air flow moves counterclockwise in diagram 1 .

[0028] In order to measure the methane concentration occurring within the path, methane sensors 14 are provided along the face, for example in every tenth production location, which are connected via a common bus 16 to a control device 20 . In this case, the bus 16 can be a data bus with which the control devices of the individual mining locations 10 communicate with each other. Furthermore, a further methane sensor 18 is arranged at the end of the working face. The gas sensors 14 can be individually controlled or in...

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Abstract

The invention relates to a method for driving mining installations along a working face in an underground mine, in which method the gas concentration is measured and an alarm signal is issued as a function of the measurement result. As a result, the extraction volume extracted by the extraction installation is additionally determined and a warning signal is output in the event of an unacceptable correlation between extraction volume and gas concentration.

Description

technical field [0001] The invention relates to a method for controlling mining installations along a working face in an underground mine, wherein the gas concentration is measured by at least one gas sensor and an alarm signal is issued as a function of the measurement result. Background technique [0002] Methods of this type are basically known from practice and are used to determine dangerous gas concentrations, in particular impermissibly high methane gas concentrations. By measuring the gas concentration, it is possible to determine an increase in the gas concentration in the working face, so that an early warning can be realized by means of an issued alarm signal. For example, the warning signal can trigger an audio and / or visual display device, or the warning signal can switch off electrical consumers in the working face in order to minimize the risk of a methane explosion. Mining operations can only be continued if the measured methane number drops again after a su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18
CPCE21C35/24E21F5/00
Inventor 马丁·路透
Owner MARCO SYSTEMANALYSE UND ENTWICKLUNG GMBH
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