Rapid sealing device for rescue operations in large-area underground coal mine tunnels

CN224282711UActive Publication Date: 2026-05-26SHAANXI SHAANXI COAL HANCHENG MINING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI SHAANXI COAL HANCHENG MINING CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing tunnel sealing technologies are insufficient to meet the needs for rapid, safe, and efficient sealing in underground coal mines, especially in large-area tunnels where construction efficiency is low, resources are wasted, and operations are complex.

Method used

A combination of telescopic supports and modular air barriers, along with jacks and fixing strips, enables rapid closure of the tunnel. The height of the telescopic supports can be adjusted, and the air barriers can be quickly assembled. Combined with optimized process flow, construction efficiency and safety are improved.

Benefits of technology

It significantly improved construction efficiency, reduced timber consumption, lowered the risk to personnel in hazardous environments, and achieved resource recycling and cost control.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224282711U_ABST
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Abstract

This utility model discloses a rapid sealing device for large-area underground roadway rescue in coal mines. It includes side columns vertically arranged along both sides of the roadway and a central column vertically arranged in the middle of the roadway. Both the side columns and the central column are telescopic supports, and jacks are installed at the bottom of each. A fixing strip of the same width is horizontally arranged at the top of the roadway, and fixing strips of the same height are vertically arranged on both sides of the roadway. It also includes an air barrier composed of multiple air barrier units connected by zippers along their longitudinal edges. The jacks are used to finely adjust the height of the telescopic supports from the bottom. The three fixing strips form a wooden sealing wall. The air barrier is fixed to the side columns, central column, and wooden sealing wall to achieve rapid sealing of the roadway. This device solves the problem that existing sealing technologies cannot meet the rapid sealing requirements of underground roadways.
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