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Four-dimensional transparent visual experiment table and method for simulating top coal drawing

A test bench and top coal technology, applied in the field of mining engineering, can solve the problems of unclear understanding of the four-dimensional motion law, difficult to intuitively reveal the changes of the displacement field and velocity field of the top coal, and the lag of the top coal release law in engineering practice, etc. The effect of reducing residual coal rate and optimizing coal drawing parameters

Inactive Publication Date: 2015-04-08
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Application Information

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Problems solved by technology

[0002] As one of the important coal mining methods for mining thick coal seams in my country, longwall fully mechanized caving mining has made great progress since it was introduced into my country in the 1880s. Its engineering practice is difficult to achieve the purpose of guiding practice by theory, especially the understanding of the four-dimensional motion law of the three-dimensional spatial coordinates of the top coal changing with time under different coal seam inclinations is not clear, and it is difficult to intuitively reveal the top coal displacement field and Changes in the velocity field

Method used

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  • Four-dimensional transparent visual experiment table and method for simulating top coal drawing

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Embodiment 1

[0035] Embodiment 1: as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the present invention has a hydraulic jack 12, a base 11, a transparent plexiglass cover slot 15, a material delivery box groove 14, a material delivery box 13, a fixed angle steel 17, an anchor screw hole 16, a coal discharge support 26, and a telescopic tail beam Pull ring 21, retractable tail beam 22, top beam 23, top beam support column 25, top beam support base 24, transparent plexiglass cover 31, anchor eye 32, gangue simulated transparent medium 37, top coal simulated transparent medium 36, Luminous marker point particles 35, a high-definition camera 33, and a camera bracket 34.

[0036] The hydraulic jacks 12 are respectively placed at the four corners below the base 11, and the transparent plexiglass cover 31 is inserted into the plexiglass cover slot 15 at the front and rear ends of the base 11, and its front end is fixed through the an...

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Abstract

The invention relates to a four-dimensional transparent visual experiment table and method for simulating top coal drawing and belongs to the technical field of mine engineering. Hydraulic jacks are respectively disposed at four corners under a base, a transparent organic glass cover is inserted into organic glass cover slots in the front and rear ends of the base, the front end of the transparent organic glass cover is fixed on fixing angle bars located at the front end of the base by the aid of anchoring screws through anchoring screw holes and anchoring eyelets, a transport box is disposed in a transport box groove in the middle of the base, and a coal caving supporter is arranged on the upper portion of the transport box at the lower end of the transparent organic glass cover through top beam support pillars and top beam support bases so as to be connected with the base; a transparent gangue simulation medium, a transparent top coal simulation medium and luminous mark point particles are arranged in an enclosed space encircled by the coal caving supporter and the transparent organic glass cover, and high definition cameras and camera stands are connectedly disposed in three pairwise orthogonal space ranges on the front side, lateral side and upper side of the transparent organic glass cover. The conditions that the top coal positions and velocity fields in a three-dimensional space change with time under the circumstance of any coal seam dip angle can be measured accurately.

Description

technical field [0001] The invention relates to a four-dimensional transparent and visualized experimental platform and an experimental method for simulating top-coal discharge, belonging to the technical field of mine engineering. Background technique [0002] As one of the important coal mining methods for mining thick coal seams in my country, longwall fully mechanized caving mining has made great progress since it was introduced into my country in the 1880s. Its engineering practice is difficult to achieve the purpose of guiding practice by theory, especially the understanding of the four-dimensional motion law of the three-dimensional spatial coordinates of the top coal changing with time under different coal seam inclinations is not clear, and it is difficult to intuitively reveal the top coal displacement field and Changes in the velocity field. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a...

Claims

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Application Information

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IPC IPC(8): G09B25/02
CPCG09B25/02
Inventor 王家臣宋正阳张锦旺张通
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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