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Open-air coal pile dusting amount test similarity experiment system and measurement method

A technique similar to experimentation, dust volume, used in measuring devices, aerodynamic testing, testing of machine/structural components, etc.

Inactive Publication Date: 2020-11-06
TAIYUAN UNIV OF TECH
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  • Description
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Problems solved by technology

[0004] Aiming at the deficiencies of existing collection methods, a similar experimental system and measurement method for testing the amount of dust generated by open-pit coal piles is proposed

Method used

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  • Open-air coal pile dusting amount test similarity experiment system and measurement method

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Embodiment Construction

[0027] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0028] refer to figure 1 , the present invention provides a similar experimental system for testing the amount of dust generated by open-pit coal piles, including: a fan 1 and its control device, and a wind tunnel frame 18;

[0029] Wherein, the wind tunnel frame 18 is a hollow cubic structure, the fan 1 is arranged at one end of the wind tunnel frame 18, and the bottom of the wind tunnel frame 18 is provided with a rough element 7, a wind speed sensor 17 and a mass sensor 10 in turn, and the mass sensor 10 passes through the wind tunnel frame 18 Bottom floor, a rigid tray 13 for containing dust samples is placed on the top part of the wind tunnel frame 18; a high-speed camera 14 is arranged on the top of the wind tunne...

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Abstract

The invention relates to an open-air coal pile dusting amount test similarity experiment system and a measurement method. The system comprises a fan and a wind tunnel frame. A flow equalizing plate used for adjusting the airflow direction is arranged right in front of the draught fan in the frame. A rough element for increasing turbulence intensity is arranged behind the flow equalizing plate, a wind speed sensor is arranged behind the rough element and connected with a wind speed displayer outside the frame, the wind speed displayer is connected with a computer, a rigid tray for containing dust samples is arranged next to the wind speed sensor, a mass sensor is fixed below the tray, and the sensor is connected with the computer. A sliding rod is arranged above the tray, a slidable fixingclamp is arranged on the sliding rod and fixes the high-speed camera, and a spray head is arranged at the tail end of the system and connected with a water pump and a water tank through a guide pipe.The system can be used for measuring the dusting amount of different coal piles under the multi-factor coupling effect, and provides support for researching and developing an economical, applicable, reasonable and efficient open-air coal pile dust comprehensive treatment technology.

Description

technical field [0001] The invention relates to the technical field of atmospheric particle control, in particular to a similar experimental system and measurement method for testing the amount of dust generated by open-pit coal piles. Background technique [0002] Wind erosion and dust in open-pit coal piles have serious impacts and hazards on human life and health. The simulation experiments of dust emission volume and dust model provide a reference for the prevention and control of this type of particulate matter pollution. The measurement of the amount of dust cannot be measured in the actual field. [0003] Many scholars at home and abroad have carried out a lot of research on the dust emission of coal piles and proposed many research methods. At present, the numerical simulation method is widely used to estimate and simulate the dust emission and dust emission mode of coal piles, but this method ignores the The influence of accumulation angle and moisture content on t...

Claims

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Application Information

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IPC IPC(8): G01M9/02G01M9/06G01N15/06
CPCG01M9/02G01M9/067G01N15/06
Inventor 陈曦王卓龑范超男葛少成夏远翔刘祥毛彦军
Owner TAIYUAN UNIV OF TECH
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