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Top coal gangue interface recognition test system

A test system and top coal caving technology are applied in the field of coal gangue interface identification in top coal caving mining, which can solve the problems of imperfect identification methods, restricting the practical application of coal gangue identification technology, and lack of experimental devices.

Active Publication Date: 2018-09-14
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, some domestic scholars have carried out the research on the identification method of coal-gangue interface based on the vibration signal of the tail beam, and achieved very effective results. Through signal processing and feature extraction, the coal-gangue interface can be more accurately identified in the laboratory. , but there is still a big gap from the actual engineering application, and the identification method is not perfect
At the same time, due to the lack of relevant theories, the theoretical development of coal gangue identification in caving mining based on data analysis and the practical application of coal gangue identification technology are seriously restricted.
In order to clearly understand the essential cause of signal generation and the real propagation law under various field conditions, it is necessary to conduct quantitative analysis on the vibration characteristics when rock and coal impact the tail beam during the research process, but there is a lack of reasonable experimental equipment at this stage. To verify and assist research

Method used

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  • Top coal gangue interface recognition test system
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  • Top coal gangue interface recognition test system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Such as figure 1 As shown, the present embodiment provides a coal gangue interface identification test system for top caving, including a base 1, a coal gangue particle impact vibration test device installed on the base 1, and a coal gangue falling impact test device for imitating coal flow. most;

[0077] Wherein, the coal gangue particle impact vibration test device includes a vibrating table device 3, a support assembly, a coal discharge device 2 and a high-speed camera assembly 205, wherein the vibrating table device 3 is arranged at the bottom of the support assembly, and the coal discharge device 2 is arranged on the support assembly and located at the bottom of the support assembly. Above the vibrating table device 3, the high-speed camera assembly 205 is located on one side of the bracket assembly and arranged side by side with the vibrating table device 3; the coal gangue particles are released to the vibrating table device 3 through the coal discharge device 2...

Embodiment 2

[0094] A coal gangue interface identification test system for caving coal, the structure is as described in embodiment 1, the difference is that a coal gangue particle storage box 14 is installed on one side of the first lifting plate 11, and A four-degree-of-freedom manipulator 16 is arranged on one side of the multi-particle coal discharge workbench 13, and the four-degree-of-freedom manipulator 16 is installed in the chute on the upper surface of the multi-particle coal discharge workbench 13 through the manipulator sliding seat 15, which can realize the four-degree-of-freedom manipulator. The space of 16 rotates 360 degrees, and the four-degree-of-freedom manipulator 16 is adjacent to the coal gangue particle storage box 14. Subsequently, the four-degree-of-freedom manipulator 16 grabs the gangue particles stored in the gangue particle storage box 14 and places them in the corresponding coal gangue particle discharge port.

Embodiment 3

[0096] A roof caving coal gangue interface identification test system, the structure is as described in Embodiment 1, the difference is that: the vibration table device also includes a box-shaped plate fixed and constrained vibration table assembly 302, a box-shaped plate fixed and constrained vibration table assembly 302 Including the vibrating table mobile base 39, the vibrating table secondary mobile seat 40, the vibrating table support sliding groove 41, the vibrating table first lifting support 42, the vibrating table second lifting support 43, the vibrating table third lifting support 44 , box-shaped vibrating plate fixing rod 48, box-shaped vibrating plate 49, vibrating table material recovery device 58. Among them, the vibrating table material recovery device 58 also includes an aggregate main body box 50, an aggregate lateral first baffle 51, an aggregate lateral second baffle 52, an aggregate lateral third baffle 53, and an aggregate mountain-shaped The first expansi...

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Abstract

The invention relates to a top coal gangue interface recognition test system comprising a base, a coal gangue particle impact vibration test device, a simulating coal flow coal gangue drop impact testdevice. The coal gangue particle impact vibration test device comprises a vibration table device, a bracket assembly, a coal release device and a high-speed camera component. The coal release devicereleases the coal gangue particles to the vibration table device. The high-speed camera component obtains instantaneous image information that the coal gangue particles drop on the vibration table device. The simulating coal flow coal gangue drop impact test device includes a simulating coal flow drop device, a coal gangue transport device, a coal shovel device and a top coal hydraulic support working group. Subsequently, a simulating coal pressure loading device and coal flow buckle device perform a simulating coal flow coal gangue drop impact test on the top coal hydraulic support working group. The test system can realize the vibration plate test of single-particle, multi-particle, group-particle coal gangue impact simulation, can also simulate the actual drop of the top coal, and can effectively obtain the data of the top coal drop test.

Description

technical field [0001] The invention relates to a coal gangue interface recognition test system for top coal caving, and belongs to the technical field of coal gangue interface recognition in top coal mining. Background technique [0002] Coal plays a dominant role in my country's energy resources, is related to the development of national industry and agriculture, and plays a pivotal role in the entire national economy. The development of coal mining technology is an important measure to increase the rate of coal mining and an important means to increase coal production. At the same time, the automation of coal mining is conducive to improving the working conditions of workers, reducing personal casualties and improving labor production efficiency. Thick coal seams account for about 44.8% of my country's total coal reserves, and a considerable part of the nearly 3 billion tons of coal each year is mined by top-coal caving. Therefore, the research and promotion of top-coal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/08G01M7/02
CPCG01M7/02G01M7/08
Inventor 曾庆良杨扬万丽荣张鑫王成龙王亮刘志海高魁东仉毅
Owner SHANDONG UNIV OF SCI & TECH
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