A long-distance tunneling roadway dirty air intelligent recovery system and method

By combining a positive pressure air supply and negative pressure recovery system with intelligent control using gas sensors, the problem of polluted air circulation in long-distance tunneling roadways has been solved, enabling real-time monitoring of air quality and efficient polluted air recovery, thus ensuring mine operation safety and energy conservation.

CN118774921BActive Publication Date: 2026-02-17SINOSTEEL MAANSHAN INST OF MINING RES CO LTD
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Patent Information

Application Number
CN202411048317.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-01
Publication Date
2026-02-17
Estimated Expiration
2044-08-01

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively address air circulation and ventilation in long-distance tunnels, resulting in severe dust pollution that affects operational safety and health. Furthermore, they are energy-intensive and fail to meet the short-term operational needs of mines.

Method used

By employing a positive pressure air supply system and a negative pressure waste air recovery system, combined with multi-parameter gas sensors and controllers, real-time monitoring and intelligent control of air quality in the roadway are achieved. Through the start-stop management of negative pressure local fans, waste air is efficiently recovered and discharged.

Benefits of technology

It effectively improves air quality in the tunnels, reduces the risk of occupational diseases, ensures safe production in the mine, achieves energy saving and flexible airflow management, and meets the needs of short-term operations in the mine.

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Abstract

The application discloses a long-distance tunneling roadway dirty air intelligent recovery system and method, and belongs to the technical field of mine ventilation. The long-distance tunneling roadway dirty air intelligent recovery system comprises a positive pressure air supply system and a negative pressure dirty air recovery system. The positive pressure air supply system is used for supplying fresh air flow to a working face. The negative pressure dirty air recovery system is used for monitoring the air quality in a roadway and discharging the contaminated air in the roadway. The application solves the problem that the prior art cannot perform good local ventilation in roadway single heading or stope application. The application realizes intelligent recovery of toxic and harmful gases such as dirty air in an ultra-long-distance single heading transportation roadway and tail gas of trackless equipment through reasonable arrangement of a wind cylinder and a local fan and effective cooperation with a gas monitoring sensor, thereby creating a good ventilation working environment underground and reducing the occurrence of occupational diseases of underground workers.
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