Intrinsic safety-type dust sensing device used for mining based on light scattering method

An intrinsically safe, sensing device technology, applied in the field of dust concentration detection devices with dust sensors and mine intrinsically safe dust sensors, can solve the problem of unfavorable photoelectric receivers receiving scattered light intensity signals and affecting the accuracy of detection results , dust falling too fast and other problems, to achieve the effect of reliable performance, not easy to dust accumulation, simple adjustment

Pending Publication Date: 2017-06-30
北京瑞赛长城航空测控技术有限公司 +2
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Problems solved by technology

[0003] Chinese invention patent ZL200820122691.2 discloses a laser dust detector, which includes a dark room with an air inlet and an air outlet, and a gas channel separated by two partitions is installed between the air inlet and the air outlet. One end of the darkroom is provided with a light source generated by a laser generator, and the other end of the darkroom is provided with an optical lens group and a photoelectric receiver in sequence corresponding to the light source, and the two partitions are provided with a light source corresponding to the light source. corresponding light hole; the air outlet of the darkroom is connected to an air pump, a humidity sensor and an exhaust port in sequence; the photoelectric receiver is connected to a preamplifier, an integrating circuit, an analog-to-digital converter and A sing

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  • Intrinsic safety-type dust sensing device used for mining based on light scattering method
  • Intrinsic safety-type dust sensing device used for mining based on light scattering method

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Embodiment Construction

[0019] Below, the implementation of the technical solution will be further described in detail in conjunction with the accompanying drawings.

[0020] Those skilled in the art can understand that although the following description involves many technical details related to the embodiments of the present invention, this is only an example for illustrating the principle of the present invention, and does not imply any limitation. The present invention can be applied to occasions other than the technical details exemplified below, as long as they do not deviate from the principle and spirit of the present invention.

[0021] In addition, in order to avoid making the description in this manual limited to redundant, in the description in this manual, some technical details that can be obtained in the existing technical documents may be omitted, simplified, modified, etc. understandable to human beings, and this does not affect the adequacy of the disclosure of this specification. ...

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Abstract

The invention discloses an intrinsic safety-type dust sensing device used for mining based on a light scattering method. The dust sensing device is characterized by comprising a laser light source (9), a detection cavity (11) and an air blower member which are arranged along same axis, wherein, a light extraction end of the laser light source (9) is communicated with one end of the detection cavity (11), the laser emitted by the laser light source (9) is propagated along the axis, wherein, the intrinsic safety-type dust sensing device also comprises a photoelectric conversion assembly (14), the photoelectric conversion assembly and axis are vertically placed over the detection cavity (11), which faces to a through hole at the upper part of the detection cavity (11), wherein, the air blower member is used for introducing the to-be-measured air into the detection cavity (11).

Description

technical field [0001] The application belongs to the technical field of electrical control and coal mine safety, and relates to a mine-used intrinsically safe dust sensor based on a light scattering method, and more specifically, to a dust concentration detection device with a dust sensor. Background technique [0002] Dust (especially the dust generated in the production process) is more harmful. Pneumoconiosis caused by long-term inhalation of high-concentration dust is the most common occupational disease; toxic elements such as lead, cadmium, arsenic, and manganese contained in the dust dissolve in the respiratory tract Absorbed into the blood circulation to cause poisoning; hair dust, cotton dust and other light dust, when inhaled into the respiratory tract, easily adhere to the mucous membranes of the nasal cavity, trachea and bronchus, long-term local irritation and continuous infection cause chronic inflammation. In addition, dust can also cause eye diseases, skin d...

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Application Information

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IPC IPC(8): G01N15/06
CPCG01N15/06G01N2015/0693
Inventor 苗丙查国翔徐松涛
Owner 北京瑞赛长城航空测控技术有限公司
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