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Explosion-proof water bag for coal mines, explosion-proof The water tank is a high-quality product produced and inspected in strict accordance with standards. It has the functions of flame retardant, antistatic, good bearing capacity, no leakage, and easy installation. Explosion-proof water bag and explosion-proof water tank are effective in preventing flammable gas and coal dust underground in coal mines. Reliable product for explosion propagation in a wide range of specifications.
Product Description
Mining explosion-proof water bag is an installation container used in coal mines. The water bag shed composed according to the installation technical requirements can effectively isolate the spread of gas and coal dust explosions. Materials used to make water bags It has safety properties such as flame retardant and anti-static.
1. Technical requirements
Water bags and water tanks should comply with the provisions of this standard, and should be manufactured according to approved drawings and documents according to prescribed procedures. Outsourced materials should have certificates of quality and can only be used after passing the inspection.
The specifications and dimensions of water bags and water tanks should comply with the requirements in the table, and the actual water capacity must not be less than the nominal volume.
Table
Item
Model
Name
Nominal volume
Length
Width
Height
Dimensional deviation
Sink
Upper plane
Lower plane
Upper plane
Lower plane
Upper plane
Lower plane
Upper plane
Lower plane
Upper plane
Lower plane
Upper plane
Lower plane
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Water bag
The water distribution characteristics should Meet the following requirements
. The explosion pressure (expressed in static pressure) required to break the water tank shall not be greater than the explosion pressure (expressed in static pressure) required to operate the water bag.
The action time to form the optimal water mist shall not be greater. It shall not be greater than
, the optimal water mist duration shall not be less than for the water tank, and shall not be less than
for the water bag, the optimal water mist dispersion length shall not be less than
, and the optimal water mist dispersion width shall not be less than < br/>. The optimal water mist dispersion height shall not be less than .
The explosion-proof performance should meet the following requirements. Counting from the explosion source, the explosion flame shall not exceed.
2. Structure The water bag is in the shape of a long trough with a semi-circular bottom and the seams are firmly bonded and the surface is neat and smooth, as shown in the picture. The water tank is rectangular and trapezoidal, formed in one step and has a smooth surface, as shown in the picture.
3. Usage method
Water consumption of water shed
Explosion-proof water bag (tank) sheds are divided into centralized and decentralized types (depending on the layout).
The water consumption of the centralized water bag (tank) shed is calculated according to the type of tunnel section. The main water shed is not less than /, and the auxiliary water shed is not less than /.
The water consumption of the decentralized water tank (bag) shed is based on The volume of the lane space occupied by the shed area shall be calculated to be no less than.
, the location of water boron
, the water bag (trough) shed should be set up in the straight roadway
The intersection of the water bag (trough) shed and the tunnel, the distance at the turns should be maintained, The distance from the air door must be greater than
. The distance between the first row of concentrated water sheds and the working surface must be maintained, and the distance between the first row of distributed water sheds and the working surface must be maintained
. Auxiliary flameproofing should be provided. The laneway of the water shed should be equipped with multiple groups of 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 sheds are scattered along the tunnel, and the distance between the two water bag (tank) groups is
. The length of the shed area of the centralized main water shed is not less than Less than.
4. Installation method
The installation method of water bag (trough) shed can be hanging type or top-supporting type, or mixed type. The principle is that when affected by the impact of explosion, water is easy to spill out. The layout should comply with the following regulations
Section＜hour/＞
Section＜hour/＞
Section＜hour/＞
In the formula, the number of water bags (troughs) on the row shed, the water The width of the windward section of the shed, the width of the horizontal tunnel where the water 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 tunnel wall shall not exceed the limit of two water bags (troughs). ) shall not be greater than the distance between the edge of the water bag (tank) and the tunnel wall, bracket, roof, or structure shall not be less than the distance from the bottom of the water tank (bag) to the roof beam shall not be greater than ). Add a
above the water shed. 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 section of the long tunnels before and after it.
The hook positions of the water bag (trough) should be aligned and arranged facing each other. The round steel hooks are arranged in a row. The hook angle is degrees and the hook is changed.
5. Management and precautions of the water tank (bag) shed
It is necessary to always keep the water bag (trough) intact and with the specified amount of water. The upper edge must be horizontal to meet the design requirements
. Check it every half a bag
. The water bag (trough) shed should be used as an auxiliary partition. Explosive use.
6. Packaging, transportation and storage
Product packaging should comply with the relevant regulations for railway and road transportation (water bags are only one package, packed in woven bags).
Water bags are transported during transportation During the process, prevent mechanical impact and friction, and avoid sunlight and rain.
The products should be stored in a well-ventilated warehouse. The stacking should not be too high to avoid affecting the quality of use. It is prohibited to damage rubber and plastics. When in contact with quality materials, avoid direct sunlight and rain. The storage temperature should be between ℃ ~ ℃, relative temperature ﹪, and away from heat sources.
Explosion-proof water bags must be flame-retardant or flame-retardant. It has the function of anti-static, and it must have the carrying capacity to carry the corresponding capacity of water, and there must be no leakage.
According to different requirements, water bags of different volume specifications are made, and corresponding wind buckles are made on both sides to facilitate water use. The movable hooks in the bag shed are installed and replaced. Iron bars of corresponding specifications need to be inserted on both sides of the water bag to increase the carrying capacity of the water bag.
The water bag must be tightened and hung securely, and the force should be evenly distributed , must be hung up every time, no omission is allowed.
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