JULI® explosion-proof water barrier bag is used to isolate the spread of gas (combustible gas) and coal dust explosions. To prevent coal dust explosions and control the expansion of coal dust explosion disasters, ensure that coal and semi-coal rocks are in each mining area, at the upper and lower exits of the tunneling surface, and also transport roads, etc. to ensure sufficient water volume, To prevent the spread of gas and coal dust explosion accidents, the propagation of coal dust explosion shock waves is blocked.
Item | Unit | SDCJ5591 | Excutive Standard | ||||
Base fabric | - | PES | - | ||||
Titer of yarn | D | 540*500 | DIN EN ISO 2060 | ||||
Color | - | Orange | - | ||||
Weave Style | - | Knitted fabric | DIN ISO 934 | ||||
Total weight | g/m2 | 420 | DIN EN ISO 2286-2 | ||||
Tensile Strength (Warp/Weft) |
N/5cm | 800/600 | DIN 53354 | ||||
Tear strength (Warp/Weft) |
N | 120/110 | DIN53363 | ||||
Adhesion strength | N/5cm | 60 | DIN53357 | ||||
Threshold Temperature | ℃ | -30~70 | DIN EN 1876-2 | ||||
Fire resistance | - | DIN4102 B1/EN13501/NFPA701/MSHA/DIN75200 | DIN4102 B1/EN13501/NFPA701/MSHA/DIN75200 | ||||
Oxygen Index | % | 30 | BB/T0037-2012 | ||||
Antistatic | Ω | ≤3 x 108 | DIN54345 |
Item | Unit | Type | |||||
GD30 | GD40 | GD60 | GD80 | ||||
Standard Size | L | 30 | 40 | 60 | 80 | ||
Dimension (LxWxH) | cm | 45*38*25 | 60*38*25 | 90*38*25 | 90*48*29 | ||
Excutive Standard | - | MT157-1996 | |||||
Fire Resistance | Alcohol Blast Burner (960℃) |
The average flame combustion time of 6 specimens | s | ≤3 | ≤3 | ≤3 | ≤3 |
The maximum flame combustion time of 6 specimens | s | ≤10 | ≤10 | ≤10 | ≤10 | ||
The average flameless combustion time of 6 specimens | s | ≤10 | ≤10 | ≤10 | ≤10 | ||
The maximum flameless combustion time of 6 specimens | s | ≤30 | ≤30 | ≤30 | ≤30 | ||
Alcohol burner (520℃) |
The average flame combustion time of 6 specimens | s | ≤6 | ≤6 | ≤6 | ≤6 | |
The maximum flame combustion time of 6 specimens | s | ≤12 | ≤12 | ≤12 | ≤12 | ||
The average flameless combustion time of 6 specimens | s | ≤20 | ≤20 | ≤20 | ≤20 | ||
The maximum flameless combustion time of 6 specimens | s | ≤60 | ≤60 | ≤60 | ≤60 | ||
Surface Resistance | Ω | ≤3 x 108 | |||||
Water Distribution | Explosion pressure at 29m | kPa | ≤12 | ≤12 | ≤12 | ≤12 | |
Action time to form the best mist | ms | ≤150 | ≤150 | ≤150 | ≤150 | ||
Optimal water mist duration | ms | ≥160 | ≥160 | ≥160 | ≥160 | ||
Optimal water mist dispersion length | m | ≥5 | ≥5 | ≥5 | ≥5 | ||
Optimal water mist dispersion Width | m | ≥3.5 | ≥3.5 | ≥3.5 | ≥3.5 | ||
Optimal water mist dispersion Height | m | ≥3 | ≥3 | ≥3 | ≥3 | ||
The above values are average for reference, allowing 10% tolerance. Customization is acceptable for all given values. |
◈ Used in underground mining for water containers.
◈ Isolate the spread of gas and coal dust explosions.
◈ Ensure sufficient water volume in underground mining.
◈ Stop the propagation of the shock wave caused by the coal dust explosion.