Dust Collector Flameless Vent (Pipeline Explosion Vent Window)

Powder explosion venting products: explosion venting panels, flameless venting devices, explosion isolation valves, spark detection and extinguishing systems, etc.

Flameless venting consists of two parts:

1) Explosion venting panel;

2) Flame extinguishing module;

Dust Collector Flameless Vent (Pipeline Explosion Vent Window)Introduction:

Effectively prevents flames and heat, providing a safe environment for equipment, buildings, and personnel;

Suitable for indoor flameless dust venting equipment;

Efficiently collects dust without polluting the environment;

High venting efficiency, cost-effective and practical;

Frame material: carbon steel or stainless steel;

Flame arrestor material: 304SS;

Applicable dust: St1 and St2 dust with Kst ≤ 300 barg*m/s;

Effective venting area meets explosion venting requirements;

Installation method: mounted flush against equipment or pipelines using flange connections;

Venting panel must be replaced after activation;

Test reports from domestic authoritative institutions can be provided;

Dust Collector Flameless Vent (Pipeline Explosion Vent Window)Functions:

1. Extinguishes explosion flames—no explosion flames can escape, ensuring a safe operating environment.

2. Contains explosion dust—captures process materials, eliminating potential hazardous substances from entering the environment.

3. Controls explosion pressure—absorbs peak explosion pressure, protecting personnel and surroundings from pressure damage.

4. Controls explosion temperature—absorbs the explosion fireball, preventing a significant rise in ambient temperature.

Product Features:

Static activation pressure: 0.01 MPa.

Material: carbon steel/304 stainless steel.

No special maintenance required.

Online maintenance structure available, allowing vent panel replacement and flame arrestor cleaning without disassembling connections.

Customizable flange interfaces.

Complies with EN16009 standard, passing standard tests.

Offers various flameless venting structures to meet different operational needs.

Flameless design effectively prevents significant losses from secondary dust explosions.

Applicable equipment: dust collectors, bucket elevators, drying equipment, cyclone separators, dust collectors.

Dust explosions require five elements; when all five are present, an explosion may occur. The five elements are: oxygen; combustible dust; ignition source; dust cloud; confined space.

Dust explosions are accompanied by powerful shockwaves and flames. Since equipment lacks sufficient pressure resistance, explosions can cause damage, leading to secondary or multiple explosions. Therefore, dust explosion protection must be taken seriously.

To prevent dust explosions or minimize hazards when they occur, explosion venting equipment is crucial.

Venting is a common and effective explosion protection method; it releases pressure during potential industrial explosions and provides designed pressure relief!

Working Principle:

Consists of two parts: explosion vent panel and flame extinguishing module. The vent panel responds to rapid pressure increases from deflagration, opening immediately to reduce pressure. When the expanding fireball passes through the open vent panel, it is quenched by the flame extinguishing module. The precision stainless steel mesh, supported by a frame, acts as a three-dimensional flame trap, extinguishing flames and preventing propagation, thus avoiding secondary or multiple explosions. The extinguishing module eliminates deflagration flames, reduces hot gas temperature, and captures burning and unburned dust passing through the open vent panel. Simultaneously, pressure waves or noise from production equipment are minimized. As flames pass through the mesh flame arrestor, heat exchange rapidly cools high-temperature flames, venting pressure and smoke while reducing pressure waves or noise from production equipment. In industrial production, combining flameless venting devices with explosion isolation valves effectively prevents pressure waves and flame propagation to upstream workshop areas, curbing secondary explosions and reducing property damage while ensuring personnel safety.

Dust Collector Flameless Vent (Pipeline Explosion Vent Window)Application Areas:

Widely used in industries such as grain, metallurgy, chemicals, power, light industry, pharmaceuticals, tobacco, machining, and solid waste treatment. Applicable equipment includes cyclone separators, baghouse dust collectors, dust collectors, cartridge filters, pneumatic conveying systems, rod or ball mills, bucket elevators, dryers and ovens, roller mills, and buildings. The device mainly consists of a vent panel and flame extinguishing mesh. Installed on protected equipment, the vent panel remains sealed during normal operation. In the event of a dust explosion, the overpressure force on the vent panel exceeds its activation pressure, causing it to rupture and open along the seams. Explosion pressure is released through the flame arrestor mesh gaps, while flames are quenched by the extinguishing layer's "quenching" effect, preventing harm from explosion pressure and high-temperature flames to nearby personnel or equipment. The structure typically adds a flame arrestor mesh to the vent panel.

With increasingly strict environmental inspections, safety is gaining more attention. Previously, vent panels were commonly installed on dust collectors to release overpressure from dust explosions. However, installing these on indoor equipment is not permitted by safety regulations because it endangers nearby personnel and equipment; explosion pressure waves and flames may cause secondary or multiple explosions, posing greater risks. Therefore, relying solely on explosion vent panels for dust collectors is unreliable. We recommend using flameless venting + isolation technology (a more economical solution) or suppression + isolation technology to ensure production safety.

There are three main methods for dust explosion protection: venting, isolation, and suppression.

Venting: Releases explosion pressure in advance through a venting device to protect equipment from damage.

Isolation: Prevents flame propagation using an explosion isolation valve.

Suppression: Detection systems identify sparks and trigger extinguishing systems to instantly quench flames, preventing explosions.