Coal mine multifunctional model test mining device and method

A model test, multi-functional technology, applied in driving devices, measuring devices, surface mining and other directions, can solve problems such as difficult monitoring, reduce test reliability, restrict coal mining model test research, etc., to improve mining efficiency, reduce The effect of trial error

Active Publication Date: 2021-07-13
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of manual excavation is only suitable for the plane model test, and the mining of the working face is a three-dimensional problem. The use of the plane model greatly affects the authenticity of the results. At the same time, it is difficult to simulate the construction of the three-dimensional model by manual excavation.
The method of replacement of embedded parts cannot restore the real stress field of the working face, and it is difficult to monitor the internal stress information of the advanced working face, which reduces the credibility of the test and restricts the model test research of coal mining

Method used

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  • Coal mine multifunctional model test mining device and method
  • Coal mine multifunctional model test mining device and method
  • Coal mine multifunctional model test mining device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment provides a coal mine multifunctional model test mining device, such as figure 1 and Figure 5 As shown, it includes a combined cutting assembly 1, a coal collection protection assembly 2, a powerful coal output assembly 3, a power assembly 4, and a top cutting assembly 6. The combined cutting assembly 1 is installed inside the coal collection protection assembly 2, and the coal collection protection assembly 2 is used for The combined cutting assembly 1 is fixed, and plays the roles of collecting chips and protecting at the same time. The powerful coal output assembly 3 is connected with the coal collection protection assembly 2, and the power assembly 4 is slidingly connected with the powerful coal output assembly 3; the power assembly 4 provides power for the device to ensure that the device can move directionally. When the roof cutting simulation is carried out, the roof cutting assembly 6 is installed on the side of the coal gathering protection ass...

Embodiment 2

[0060] This embodiment provides a multifunctional model test mining method for coal mining, using the mining device described in Embodiment 1, comprising the following steps:

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Abstract

The invention discloses a coal mine multifunctional model test mining device and method, and its technical proposal includes a combined cutting assembly, a coal collection protection assembly, a powerful coal output assembly and a power assembly. The combined cutting assembly includes several cutting units spliced ​​together and a detachable slitting assembly, which can perform rotary cutting on the working face and slitting on the roof of the roadway; the coal collection protection assembly includes several spliced ​​together coal collection protection units, coal collection protection unit There is a coal collector inside; the powerful coal outlet assembly includes a high-power coal suction device, which is connected to one end of the guide pipe through a hose, and the other end of the guide pipe is connected to the coal collector; the power assembly includes a power source, and The power source is connected with the telescopic positioning rod, and the end of the telescopic positioning rod is connected with the guide tube. The invention can realize the automatic mining of the working face and the advance cutting of the roof of the roadway, can truly restore the stress around the working face and the mining process, and provides guarantee for the model test research of coal mining.

Description

technical field [0001] The invention relates to the field of coal mine model tests, in particular to a coal mine multifunctional model test mining device and method. Background technique [0002] Coal mine underground mining is mainly based on longwall mining technology, which can be divided into "121" construction method, "110" construction method and "N00" construction method according to different mining techniques. The main difference is that the "121" construction method excavates one working face, and two mining roadways need to be excavated, leaving one coal pillar. The "110" construction method and the "N00" construction method are to cut the roof of the roadway in advance, and use the mine pressure to automatically form the roadway. It only needs to dig one roadway ("110" construction method) or no roadway ("N00" construction method). The research on the above mining technologies is currently based on theoretical analysis, numerical simulation, and field tests, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C25/06E21C25/10E21C35/04E21C31/02E21C35/20E21C41/18G01M99/00
CPCE21C25/06E21C25/10E21C31/02E21C35/04E21C35/20E21C41/18G01M99/00
Inventor 王琦马玉琨黄玉兵江贝王亚军马凤林蒋振华高红科
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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