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Method for intelligently judging closing of coal caving openings of top coal caving hydraulic supports

A technology of hydraulic support and coal discharge port, which is applied in the direction of mine roof support, earth square drilling and mining, and instruments, and can solve the problems of large noise influence, poor anti-interference ability, poor adaptability of coal gangue identification technology, etc.

Active Publication Date: 2021-01-12
XIAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coal gangue identification technology based on sound waves in caving mining is greatly affected by the noise of the working face
Coal gangue identification technology based on γ-ray has poor adaptability, complex technology and poor anti-interference ability

Method used

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  • Method for intelligently judging closing of coal caving openings of top coal caving hydraulic supports
  • Method for intelligently judging closing of coal caving openings of top coal caving hydraulic supports
  • Method for intelligently judging closing of coal caving openings of top coal caving hydraulic supports

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Embodiment Construction

[0068]Such asFigure 1 to Figure 3The shown method for intelligently judging that the caving opening of the top coal hydraulic support is closed includes the following:

[0069]Step 1. Installation of coal gangue identification module:

[0070]Step 101. Arrange multiple hydraulic supports 1 along the coal mining work, and install a front scraper conveyor 9 on the side of the hydraulic support 1 near the coal wall, and install a rear scraper conveyor 6 on the hydraulic support 1 near the goaf 7; The shearer 10 is installed on the slab conveyor 9, and the total number of hydraulic supports 1 is m;

[0071]Step 102, the shield beams 1-4 of each hydraulic support 1 are provided with shield plates 1-5 at the ends close to the goaf 7; wherein, the shield plates 1-5 are arranged in parallel, and the shield plates 1-5 The extension line intersects the rear scraper conveyor 6, the gap between the shield plate 1-5 in the i-th hydraulic support 1 and the goaf 7 forms the i-th coal caving opening, i and ...

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Abstract

The invention discloses a method for intelligently judging closing of coal caving openings of top coal caving hydraulic supports. The method comprises the following steps that 1, coal gangue recognition modules are installed; 2, speed data of coal caving opening blocks are collected and judged; 3, block images are acquired and judged; and 4, closing of the coal caving openings is judged. The method is simple in step and reasonable in design, the coal gangue recognition accuracy is improved, meanwhile, the quality of gangue discharged from the coal caving openings is determined, the coal cavingopenings are closed in time, economic benefits are improved, and follow-up intelligent unmanned top coal caving mining is facilitated.

Description

Technical field[0001]The invention belongs to the technical field of mining engineering, and particularly relates to a method for intelligently judging that the caving opening of a top coal caving hydraulic support is closed.Background technique[0002]my country is a major coal producer and consumer in the world, and coal plays a pivotal role in my country's energy structure. Among the coal reserves in my country, the reserves of thick coal seams (thickness ≥3.5m) account for about 44% of the total coal reserves, and the output of thick coal seams also account for about 45% of the total output. Fully mechanized top coal caving is a high-yield and efficient mining method for thick coal seams. How to determine the closure of caving openings according to the degree of coal caving is a difficult problem encountered in the process of fully mechanized top coal caving. Manual visual inspection to judge the closure. Manual visual inspection will cause over-discharge or under-discharge proble...

Claims

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Application Information

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IPC IPC(8): E21D23/00E21D23/12E21F17/18G06K9/38
CPCE21D23/00E21D23/12E21F17/18G06V10/28
Inventor 崔峰杨彦斌来兴平董帅贾冲曹建涛单鹏飞代晶晶周玉普张廷辉
Owner XIAN UNIV OF SCI & TECH
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