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The snow is white and the cold winter is approaching. Shandong Shengmei brings warmth to everyone. High-quality anti-shock wave airtight doors are shipped with production reports and certificates. The anti-shock wave airtight doors produced by Shengmei , with strong pressure-bearing capacity, simple operation and considerate after-sales service, it is a trustworthy manufacturer of anti-shock wave door and sealed door
What is the function of anti-shock wave valve? Anti-shock wave valves are used in underground explosive material warehouses and explosive material distribution chambers to resist shock waves, adjust the required air volume and isolate the warehouse.
The anti-shock wave valve has a specification according to the size of the slot, see the table below
Serial number
Pressure-bearing
Model, specification
Drawing number
What is the structure of the anti-shock wave valve? This anti-shock wave valve is composed of door frame, door leaf, locking device, hinge and other components.
The door frame is a welded frame component of unequal angle steel.
. The upper part of the door leaf is equipped with three sets of ventilation flap devices, that is, there are three sets of ventilation holes with a total diameter on the bottom plate of the flap, and the outside of the flap plate is equipped with a flap hanging plate that automatically opens at an angle. The ventilation volume of each group of valves is /, the total ventilation volume is /, and the wind speed is designed according to /. When used, the number of ventilation valve groups can be determined according to the air volume required by the underground blasting material library and the total return air duct negative pressure value, and each group can be adjusted. The opening angle of the group valve hanging plate is fine-tuned to meet the optimal ventilation volume. Once an explosion occurs in the warehouse, after the shock wave has attenuated, as long as the residual pressure is greater than 1, the valve hanging plate will automatically close under pressure and isolate it from the outside world, preventing the explosion shock wave and the flames and toxic gases generated by the explosion from spreading to the external tunnel. It is discharged from the main return air duct.
, locking device setting group, one group is the locking shaft and handle rotation type for normal closing, and the other group is the emergency locking device. Its function is that when the impact force is greater than circle, the lock head enters the lock core, and the double-leaf spring is turned to brake the lock to prevent the door from rebounding. The lock can be unlocked by turning the outer key handle.
The lower hinge is supported by a one-way thrust ball bearing, and a spring hinge is used in the middle to ensure that the door closes automatically.
The sealing method adopts glyph cross-section rubber strip sealing.
Shandong Shengmei has a complete range of shock wave resistant closed doors with guaranteed quality. Welcome to visit the factory for inspection and ordering. The manufacturer’s ordering hotline is that in addition to the mining door series, Shandong Shengmei also produces belt conveyor auxiliary equipment such as buffer beds, buffer strips, cleaner guides Material trough, etc. In addition, Shengmei’s anti-corrosion sleepers and cement sleepers are also our specialty products!
Shengmei Sales Hotline
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Address Industrial Park, Yandian Town, Yanzhou City, Jining City, Shandong Province (Shengmei Park)
Shandong Shengmei Mining Machinery Co., Ltd.
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