Coal mine dust monitoring system and method

Abstract

The invention discloses a coal mine dust monitoring system and method. The system comprises a light absorption type concentration sensor, a data processing system and a control system, wherein the light absorption type concentration sensor is used for collecting real-time dust concentration data, when the real-time dust concentration data is an abnormal value, the data processing system generates warning eliminating signals, when the real-time dust concentration data is changed from an abnormal value to a normal value, the data processing system generates warning elimination signals, and the control system is used for controlling a spraying dust reducing unit to start or stop the spraying processing. In the system disclosed by the embodiment of the invention, the collected dust concentration data is real-time dust concentration data, the condition that the dust explosion can be caused since the real-time performance of the dust concentration data is poor in the prior art is avoided, and the dust explosion possibility is reduced; in addition, the control system can control the spraying dust reducing unit to stop the spraying processing, the condition that the spraying device is in the spraying state for a long time due to the personnel negligence in the prior art is avoided, and the utilization rate of water resources is improved.

Description

technical field [0001] The invention relates to the technical field of dust concentration monitoring, in particular to a coal mine dust monitoring system and method. Background technique [0002] At present, the coal production process often produces a large amount of dust, and excessive dust concentration can easily cause explosions at the production site, resulting in serious loss of life and property. [0003] Nowadays, domestic coal mine enterprises generally judge whether the dust concentration on the job site exceeds the standard by measuring the average dust concentration within a period of time. When the average dust concentration exceeds the standard, the spraying device is activated by manual control to achieve the purpose of dust reduction. [0004] However, the cause of the dust explosion is often the dust concentration is too high at a certain moment, and when the average dust concentration is used to measure the on-site dust concentration, the real-time perform...

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Problems solved by technology

[0004] However, the cause of the dust explosion is often the dust concentration is too high at a certain moment, and when the average dust concentration is used to measure the on-site dust concentration, the real-time performance of the average dust concentration data obtained is poor, even if it is obtained for a period of time The average dust concentration in the area does not exceed the standard, and it is very likely that the dust concentration at a certain moment during this period exceeds the standard, so there is the possibility of a dust explosion. In addition, by manually starting the spray device When controlling the dust concentration, it is easy to cause the spray device to be in the spray state for a long time due to the negligence of personnel, resulting in waste of water resources and reducing the utilization efficiency of water resources

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