blastproof

steel door; wooden door; aluminum door; security door; glass door; fireproof door; bulletproof door; blastproof door;

防盗;玻璃;木;金属;窗五金;自动;

The technical measures and structure,applied principles of blastproof of ventilation shaft at excavating face,specific operational method and prospective effect are described.

介绍了掘进工作面防炮崩风筒的主要技术措施及技术构、应用原理、采用这项技术的具体操作方法及达到的预期效果。