Electromagnetic wave based coal dust detection method and device
A detection device, electromagnetic wave technology, applied in measurement device, suspension and porous material analysis, particle suspension analysis and other directions, can solve problems such as unfavorable real-time monitoring, complicated operation, coal dust combustion, etc. Guarantee the effect of safe production
Inactive Publication Date: 2014-11-19
CHINA UNIV OF MINING & TECH +1
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It will also cause coal dust to burn and explode. The previous coal dust detection method is mainly aimed at environmentally friendly respirable dust, and the detected parameters are mainly coal dust concentration. However, the parameters that really affect the risk of coal dust explosion are apart from coal dust concentration. There are also grayscale parameters. The grayscale of coal dust is currently only manually analyzed, which is not only complicated to operate, but also not conducive to real-time monitoring.
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[0019] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0020] Such as figure 1 As shown, the coal dust detection device based on electromagnetic waves of the present invention mainly consists of an electromagnetic wave generator 1, a coal dust detection chamber 2, a standard coal sample 3, an electromagnetic wave detector 4, a coal dust concentration detector 5, a microprocessor 6, and a display 7. The storage circuit 8 and the communication circuit 9 are formed. The electromagnetic wave generated by the electromagnetic wave generator 1 passes through the coal dust detection chamber 2 and the standard coal sample 3 at the same time. The standard coal sample 3 is dry coal powder with a purity of 100%. The coal dust detection chamber 2 communicates with the external environment, and coal dust in the environment can enter into the coal dust detection chamber. Output to the input terminal of the electromagnetic wa...
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Abstract
Belonging to coal mine environment detection methods and devices, the invention discloses an electromagnetic wave based coal dust detection method and a device. The device is composed of an electromagnetic wave generator, a coal dust detection chamber, a standard coal sample, electromagnetic wave detectors, a coal dust concentration detector, a microprocessor, a displayer, a storage circuit and a communication circuit. The electromagnetic wave frequency generated by the electromagnetic wave generator is the absorption characteristic frequency of carbon. The electromagnetic waves simultaneously pass through the coal dust detection chamber and the standard coal sample, and are then output to the input ends of the electromagnetic wave detectors. The output signals of the electromagnetic wave detectors and the output of the coal dust concentration detector are input to the microprocessor at the same time. After analysis process, the ash content parameter of coal dust can be displayed. The analysis result is stored to the storage circuit, and is transmitted to a monitoring network through the communication circuit. The device and the method provided in the invention can monitor the ash content parameter of coal dust in real time, and can provide an important basis for evaluating the risk of coal dust explosion, thus being suitable for monitoring of the coal mine safety environment.
Description
technical field [0001] The invention relates to a coal dust detection method and device based on electromagnetic waves, in particular to a coal dust detection method and device in a coal mine environment. technical background [0002] With the improvement of coal mine mining intensity and mechanization level, while increasing coal production, the coal dust concentration in mine operation sites has also greatly increased. Coal dust will not only do great harm to the respiratory organs of miners, but also induce occupational diseases - pneumoconiosis. It will also cause coal dust to burn and explode. The previous coal dust detection method is mainly aimed at environmentally friendly respirable dust, and the detected parameters are mainly coal dust concentration. However, the parameters that really affect the risk of coal dust explosion are apart from coal dust concentration. There are also grayscale parameters. The grayscale of coal dust is currently only manually analyzed, w...
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IPC IPC(8): G01N15/06
Inventor 童紫原童敏明唐守锋任子晖
Owner CHINA UNIV OF MINING & TECH