Simulating experiment device of goaf spontaneous ignition

A technology for simulating experimental devices and spontaneous ignition, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as failure to truly reflect the situation of goafs

Inactive Publication Date: 2016-03-02
NORTH CHINA INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of goaf filling materials, glass, gypsum and other similar materials are selected for filling instead of coal samples, which cannot truly reflect the situation of the goaf

Method used

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  • Simulating experiment device of goaf spontaneous ignition
  • Simulating experiment device of goaf spontaneous ignition
  • Simulating experiment device of goaf spontaneous ignition

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Such as Figure 1 ~ Figure 3 As shown, the present invention provides a kind of simulated experimental device of goaf spontaneous combustion, and it comprises box body 1, is provided with working surface 2 in box body 1 inner upper part, and this working surface 2 right side area is goaf area (such as figure 2 As shown), when used, coal samples of different particle sizes can be filled in the gob area, and then the different air leakage rates of the goaf spontaneous combustion zones can be simulated. Choking belt. On the outer wall surface of the upper part of the box body 1, the door-opening cylinder 15 is arranged on the air outlet and noise reduction bell mouth 3, and the inner space working surface of the upper part of the box body 1 is provided with a ventilation pipeline, a connecting pipeline 4, an air inlet lane 5, an air return lane ...

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Abstract

The invention relates to a simulating experiment device of goaf spontaneous ignition. The device comprises a box body. A working face is arranged at the upper portion in the box body. A wind outlet denoisting horn mouth is formed in the outer wall surface of the upper portion of the box body. A ventilating pipeline, a communicating pipeline, a wind inlet channel, a wind return channel and a tail channel are arranged on the working face. An air heater, a humidifier, a disperser and an air compressor are arranged in the space in the lower portion of the box body. A central control cabinet is arranged outside the box body. The wind outlet denoising horn mouth is connected with the inlet of the air heater sequentially through the wind return channel, the wind inlet channel and the communicating pipeline. The humidifier is arranged on the air heater. The outlet of the air heater is connected with the inlet of the disperser through a pipeline. The outlet of the disperser is connected with the air compressor through a pipeline to form a negative pressure structure. The outlet end of the wind return channel is connected to the wind outlet denoising horn mouth. A line penetrating hole is formed in the side wall of the box body. A control line and a data line are connected through the central control cabinet through the line penetrating hole.

Description

technical field [0001] The invention relates to a goaf simulation experiment device, in particular to a goaf simulation experiment device for spontaneous combustion. Background technique [0002] At present, at home and abroad, most of the natural fires in goafs are still in the numerical simulation by using finite element numerical analysis. In terms of deformation and discontinuous media, due to the difficulty in parameter selection in determining the physical properties of rock mass, especially the bias of the given initial conditions, the results often have certain limitations. In the 1960s, the model test method has achieved some results in the application of mines in my country. It has the characteristics of short research period, low cost, strong intuition, and convenient observation, and can be considered to control the influencing factors for repeated experimental research. However, due to the complex structure of the goaf, it is difficult to achieve a high degree ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01D21/02
CPCG01N33/00G01D21/02
Inventor 朱建芳许育铭郭文杰高亮段嘉敏
Owner NORTH CHINA INST OF SCI & TECH
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