The well problem has long been a highly valued topic of discussion, and the safety hazards of the operating procedures for the construction of ventilation tubes in mining tunnels are particularly important. Therefore, people preview the safety issues of using hair dryers in the search well below.
The hair dryer worker is responsible for the installation, transportation, maintenance, and dismantling of hair dryers in the area under their jurisdiction. They immediately purchase unnecessary or damaged hair dryers and repair any damaged hair dryers on or off the shaft. Be sure to bring sufficient necessary supplies and raw materials when entering the well, and understand the situation of the excavation working face in your main area. The hanging style of the tunnel construction hair dryer should be flat, straight, tight, stable, and prevent vehicle and cannon collapse. It is necessary to hang it every time it meets the ring. The hanging hooks on both sides of the tail end of the hair dryer in each section of the tunnel should be made of fine iron wire on the inner wall of the coal roadway.
When using collagen fiber hair dryer, there should be a connection between the local ventilation fan and the collagen fiber hair dryer in each section of the iron hair dryer. The interface between the local ventilation fan and the iron hair dryer in the tunnel air duct should be sealed with a dense ring, and the screws should be tightened. The connection between the iron hair dryer and the collagen fiber hair dryer should be tightened with fine iron wire. The distance between the end of the tunnel ventilation tube and the excavation working face shall be implemented according to the requirements of each mining bureau, but it is necessary to ensure that the excavation working face has sufficient exhaust air volume.
When replacing the hair dryer, the local ventilation fan should not be stopped casually. When shutting down, it is necessary to contact the construction team leader and its driver. The replacement can only be carried out after the work is terminated and the workers are removed. When a large amount of coalbed methane is emitted from the coal roadway, it is necessary to evacuate the excavation workers to a safe location before dismantling and replacing the hair dryer.