Shengmei brand waterproof door mine sealed door

型号：

国标

规格：

标准

质量：

完好

The waterproof and airtight copy of the mine sealing door in the picture in the middle is one of the most important safety doors in the mine. The water pressure that the mine sealing door can resist can prevent water from suddenly entering, which enhances the safety factor of the mine.
Precautions for installing mine closed doors
Check the concentration of harmful gases such as gas and carbon dioxide at the construction site. The construction site must be well ventilated and the concentration of carbon dioxide gas does not exceed the regulations of coal mine safety regulations.
Check the support conditions of the roof tunnels before and after the construction site. If any problems are found, report them and deal with them in a timely manner before construction can begin until there are no hidden dangers.
The perimeter of the wall should be re-grooved to reveal the hard top and hard sides and be solidly connected with the coal and rock. The wall surface should be smooth without cracks, heavy joints and empty joints. The following points should be paid attention to when digging out
Cable lines need to be passed through the closed door wall of the fire door. When building the wall, the opening position should be reserved. When there are cables passing through, wire conduits should be set up and arranged neatly according to the cable suspension spacing. .
Fire door closed doors and walls must be made of non-combustible materials to be airtight and airtight. When building a wall with bricks, the stubble should be staggered and the horizontal joints should be arranged horizontally and neatly. Prepare mortar according to the proportion of lime to sand.
During the process of building a fireproof door, other personnel are strictly prohibited from approaching the operator to prevent tools and materials from falling and injuring personnel.
Shandong Shengmei is a professional manufacturer of mine sealed doors that has been engaged in R&D, production and sales for many years and has customers all over the country. As a manufacturer of waterproof closed doors, Shengmei people adhere to the belief that customers come first and are never satisfied, providing more convenience and choices for users of waterproof closed doors and mining waterproof closed doors. I would like to learn from you together.
Manufacturer sales hotline contact person Chen Yang
Contact
Address Industrial Park, Yandian Town, Yanzhou City, Jining City, Shandong Province
Waterproof sealed copy in the picture