Curtain-wall structure proposed for removing methane and airborne coal dust from hydrojet-jaw mining machines. Channel between curtain wall and mine wall forms closed exhaust passage. Through it, gas and dust continuously removed so high concentrations of these explosive materials not build up.
Curtain Wall Creates Ventilation Channel
NASA Tech Briefs ; 9 , 2
01.10.1985
Sonstige
Keine Angabe
Englisch
Fabricated curtain wall hoisting equipment and curtain wall hoisting method
Europäisches Patentamt | 2025
|Ultrasonic curtain wall cleaning system and curtain wall cleaning method thereof
Europäisches Patentamt | 2022
|