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Simulation device for radon transport process of underground coal spontaneous combustion carbon dioxide microbubbles

A carbon dioxide, process simulation technology, applied in teaching models, educational appliances, instruments, etc., can solve problems such as late start, and achieve the effects of improving flow, fast and accurate measurement, and accelerating radon migration.

Inactive Publication Date: 2017-12-29
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The research on the internal cause of radon migration started later than the study on the external cause

Method used

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  • Simulation device for radon transport process of underground coal spontaneous combustion carbon dioxide microbubbles
  • Simulation device for radon transport process of underground coal spontaneous combustion carbon dioxide microbubbles

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Experimental program
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Embodiment Construction

[0022] The working process is that the carbon dioxide gas with a certain flow rate provided by the carbon dioxide gas cylinder enters the device of the present invention after being heated to the required temperature after reaching the heating device through the gas pipeline. After the carbon dioxide enters from the gas pipeline, it first passes through the water storage chamber. When the dissolved carbon dioxide in the water reaches saturation, it will continue to move in the form of a stable carbon dioxide microbubble plume, and migrate upwards through the radon chamber carrying radon gas. The radon concentration is detected in the middle and top of the medium (soil), and the detection data is transmitted to a microcomputer (information processing device) through a coaxial cable for analysis, to explore the role of carbon dioxide microbubbles in transporting radon migration.

[0023] Such as figure 1 As shown, the main body of the device of the present invention is composed ...

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Abstract

The invention relates to a test simulation device, and particularly provides a simulation device for the radon transport process of underground coal spontaneous combustion carbon dioxide microbubbles. According to the simulation device for the radon transport process of the underground coal spontaneous combustion carbon dioxide microbubbles, a double-layer cylinder is installed on a base in a way of being divided into multiple segments by more than three flange plates, the lowest segment of double-layer cylinder is divided into a radon chamber and a water storage room by a first brass separating mesh, the water storage room is connected with a water inlet pipe, a water outlet pipe and a carbon dioxide gas source, each segment of double-layer cylinder on the lowest segment of double-layer cylinder is provided with a second brass separating mesh, a cobblestone layer which is arranged on the second brass separating mesh and a radon detection device which is arranged on the cobblestone layer, and the radon detection device is connected with an information processing device through a coaxial cable.

Description

technical field [0001] The invention relates to a test simulation device, in particular to a simulation device for the process of underground coal spontaneous combustion carbon dioxide microbubbles for radon transport. Background technique [0002] Mine fire is one of the main natural disasters in coal mine production activities. Mine fire will destroy a large number of coal resources and mine equipment, and seriously threaten the life safety of underground personnel. Therefore, the prevention and control of mine fire is the premise of mine safety production. Among them, the accurate detection of fire source location is the key to mine fire control. As a mature technical method, ground isotope radon measurement has been widely used in related fields such as early prediction of mine fires and detection of fire area. [0003] The upward migration of radon in the deep underground is the main reason for the abnormal value of radon on the surface. The upward migration process ...

Claims

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Application Information

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IPC IPC(8): G09B23/40
CPCG09B23/40
Inventor 王俊峰安帮周春山刘硕周斌
Owner TAIYUAN UNIV OF TECH
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