Feature Overview

The ZGJFH type automatic explosion-proof device for underground coal mines can protect against local disasters in coal mines. When an explosion shock occurs, the device automatically activates upon detecting the change in the shock pressure of the flame front, blocking and extinguishing the flames, and mitigating or extinguishing the explosion shock. It has a shorter response time and higher explosion-proof efficiency than traditional water-filled explosion-proof bags, and is easy to disassemble and relocate, providing time efficiency for the security of rapid excavation systems. Storage tubes of corresponding specifications can be selected according to the cross-sectional size of the usage area: 25kg to 90kg.

　　Key Technical Specifications

Medium Quality: 60kg ± 0.5kg

Startup Pressure: ≥0.020 Mpa

Spray Start Response Time: <15ms

Explosion-proof medium fogging time: <120ms

Extinguishing Medium雾面Duration: >1000ms

Explosion-proof medium sprinkling efficiency: >95%