ZYJ Compressed Air Self-Rescuer: Core Protective Equipment for Coal and Gas Outburst Mines
In the safety production system of coal and gas outburst mines, the ZYJ Compressed Air Self-Rescuer is a critical protective measure to ensure the safety of underground workers. As a fixed self-rescue device, it plays an irreplaceable role in mine disaster protection.
The ZYJ Compressed Air Self-Rescuer is primarily used in underground coal mine scenarios with risks of coal and gas outbursts. Its installation locations must cover key areas of underground personnel activity, including refuge chambers, daily work sites, and frequently trafficked shafts and tunnels. It can also be installed in critical areas such as development faces and mining faces as needed, ensuring that workers can quickly access it nearby in emergencies.
When a coal and gas outburst accident occurs underground, or when premonitory signs appear (such as abnormal gas concentration or coal seam sounds), workers can immediately enter the protection range of the ZYJ Compressed Air Self-Rescue Device. By manually opening the air pressure valve, they can quickly obtain a stable and clean supply of compressed air, isolating harmful gases and buying valuable time while awaiting rescue.
In terms of configuration, the ZYJ Compressed Air Self-Rescuer typically consists of a group of independent compressed air self-rescue devices. The number of devices in each group (i.e., the "number of heads") must be determined based on the maximum daily number of workers in the corresponding workplace. The core principle is that the number of installed heads must exceed the actual number of personnel in the area, ensuring that all workers have access to a device during emergencies and avoiding protection gaps due to insufficient quantity.
From a practicality and cost-effectiveness perspective, the ZYJ Compressed Air Self-Rescuer features a simple system design, requires no complex maintenance procedures, and has low overall equipment costs. It is an economical self-rescue device system with high cost-effectiveness for mine safety production, meeting both safety protection needs and effectively controlling the company's safety investment costs.
ZYJ Compressed Air Self-Rescuer Technical Parameters
Air source pressure: 0.3–0.7 MPa (compatible with the pressure range of commonly used mine compressed air systems, ensuring a stable air source)

Output pressure adjustment range: 0.09 MPa (meets human respiratory pressure requirements, avoiding discomfort from excessively high or low pressure)
Air consumption per device: 150–200 L/min (meets continuous breathing needs for a single person, ensuring long-term protection capability)
Air supply method: Supports two modes—direct connection to the existing underground compressed air system or use with a separate surface air distribution station, adapting to different mine infrastructure conditions
Noise reduction: ≤85 dB (reduces noise interference during device operation, preventing increased panic in emergencies)
Operation method: Manual adjustment and operation (simple and intuitive design, requires no professional training for quick use, suitable for emergency scenarios)
Device weight: 0.5 kg (lightweight, easy to install in various underground locations, and convenient for mobile use in special situations)
Recommendation Reasons
The ZYJ Compressed Air Self-Rescuer is designed to meet the safety needs of coal and gas outburst mines. It offers flexible installation, simple operation, and provides reliable respiratory protection for underground personnel in emergencies. Its technical parameters are tailored to actual mine working conditions, and the system is cost-effective. It not only complies with coal mine safety production standards but also helps companies control safety investments, making it a practical protective device for the lives of underground mine workers.