Waterproof and fireproof airtight door Compression and sealing of coal mine waterproof airtight door is the key point There are reserved storage tanks underground in coal mines, whose function is to introduce the continuous flow of underground water into the pool for unified storage, and then uniformly pump out the water to the ground through the pump in the pump room. Waterproof and fireproof airtight doors The coal mine's waterproof airtight doors are installed with water pump rooms, the purpose of which is to close the waterproof doors when the water level in the pump room rises due to a sudden power outage in the mine to avoid unnecessary harm. This shows how important the pressure resistance and sealing effect of the waterproof and fireproof airtight door is. If you want to produce a good waterproof and fireproof airtight door to meet the needs of mine construction, you must follow the following steps: 1. Material selection, not only for mining The same is true for other products of waterproof closed doors. We purchase high-quality steel that meets the national standard, and welding rods are the prerequisite for quality assurance; 2. Equipped with welders with strong welding skills and strong sense of responsibility. 3. Sealing performance, strict selection of flame-retardant airtight materials and no hard aging in winter. During installation, the hard top is connected to the coal and rock, and the wall is flat without cracks, re-seams and voids. It is necessary to pass the cable line in the fire door and the closed door wall. When laying the wall, reserve the position of the hole. When the cable passes through, set the conduit and arrange it according to the cable suspension spacing. In the process of building fire doors and airtight doors, other personnel are strictly forbidden to operate personnel to prevent tools and materials from falling and hurting personnel. The wall of the waterproof and fireproof airtight door shall be constructed with non-combustible materials, which shall be tight and airtight. When building walls with bricks, the stubble should be staggered, the transverse joints should be horizontal, and the arrangement must be neat. The mortar is prepared according to the ratio of ash to sand of 1:3. Daily maintenance requires that the main components such as the door leaf and door frame be sprayed with anti-rust paint at a certain interval, and the door leaf is opened and closed at a certain time interval or irregularly to keep the door leaf open and closed flexibly and well. After going through the above, we explained the practical significance of installing waterproof and fireproof airtight doors in order of easy first and then difficult, and focused on extensive communication and exchanges on installation and maintenance technology. Connecting Terminals,Micro Connecting Terminal,Aluminum Connecting Terminals,Connecting Copper Terminal Taixing Longyi Terminals Co.,Ltd. , https://www.lycopperterminals.com