Jining Guolong Mining and Industrial Co

1. Purpose
In order to prevent coal dust explosions and control the expansion of coal dust explosion disasters, ensure that the coal and semi-coal rocks in the first mining area and the upper and lower exits of the tunneling surface have sufficient water to prevent gas and coal dust. The explosion accident expanded and the spread of coal explosion was isolated.
2. Structure and quality technical standards
Structured water bag, long trough shape, semicircular bottom seam, firmly bonded, neat and smooth surface, as shown in the picture, the sink is rectangular and trapezoidal, molded in one step. The surface is smooth,
The location of the explosion-proof water tank (bag) shed
, the main location of the explosion-proof shed is
, the main transportation alley and the return air alley connected to the shafts on both sides of the mine
>, the return air tunnel of the centralized transportation tunnel between two adjacent mining areas
, the transportation stone gate and return air stone gate between adjacent coal seams
, and the location of the auxiliary flameproof shed
, air inlet and return tunnels at the coal mining working face
, coal and semi-coal rock excavation tunnels in the mining area
, other tunnels with independent ventilation and the risk of dust explosion from the media
Instructions for use
Water consumption of water sheds
Explosion-proof water tank (bag) sheds are divided into centralized and decentralized types (depending on the layout).
The water consumption of the centralized water tank (bag) shed is calculated according to the lane section type. The main water shed is no less than / the auxiliary water shed is no less than / the water consumption of the decentralized water tank (bag) shed is based on the lane occupied by the shed area. The space volume calculation is no less than.
, the position setting of water boron
, the water tank (bag) shed should be set up in the straight roadway
, the intersection of the water tank (bag) shed and the roadway, the distance between the turning point and the damper should be kept The distance must be greater than the distance between the first row of centralized water sheds and the working surface, and the distance between the first row of distributed water sheds and the working surface must be maintained. In the tunnel where auxiliary explosion-proof water sheds should be installed, multiple Group water sheds, the distance between each group should not be greater than
, the distance between rows of water sheds and the length of the water shed area
, the distance between rows of centralized water sheds is The spacing between groups of troughs (bags) is
. The length of the centralized main water shed is not less than that of the Chinese auxiliary shed, and the length of the decentralized shed is not less than
Installation method
. The installation method of the water tank (bag) shed can be a hanging type or a top-supporting type, or a mixed type. When subject to the impact of an explosion, water will easily spill out. The installation should comply with the following regulations
When the cross-section is < /＞
Section＜hour/＞
Section＜hour/＞
In the formula, the number of water tanks (bags) on the row of sheds, the width of the windward section of the shed, the width of the horizontal tunnel where the shed is located
, The sum of the gap between the water tank (bag) and the gap between the water tank (bag) and the bracket or the tunnel wall shall not be greater than the limit. The gap between two water tanks (bags) shall not be larger than the edge of the water tank (bag) and the tunnel wall, The distance between brackets, top plates and structures is not less than the distance from the bottom of the water tank (bag) to the top beam. If it is greater, an additional one must be added above the water tank (bag).
The distance between the water shed and the roadway rail surface should not be less than the same height. When the roof needs to be raised, the cross section of the tunnel in the water shed area should be consistent with the cross sections of the long tunnels in front and behind it.
. Hanging sinks (the bag hooks should be aligned and arranged facing each other. The hook angles of the round steel hooks are degrees, and the hooks change.
Management and precautions of the sink (bag) shed< br/>. Always keep the water tank (bag) intact and the upper edge of the specified water volume must be in a horizontal state to meet the design requirements
. Check it every half month
. The water tank (bag) shed should be used as an auxiliary partition. Explosive use.
Contact Ms. Wu
Mobile phone
Telephone
Your satisfaction is what we are pursuing, and we have been working hard.
Guolong welcomes your calls