Powder explosion-proof and pressure relief products: explosion-proof discs, flameless relief devices, explosion-proof valves, spark detection and extinguishing devices, etc.

Flameless explosion consists of two parts:

1) Explosion relief film;

2) Flame extinguishing template;

Introduction:

Effectively prevent flames and heat, providing a safe place for equipment, buildings, and mobile personnel;

Suitable for indoor equipment with no flame release due to dust explosion;

Effectively collecting dust without polluting the environment;

High explosion efficiency, economical and practical;

Frame material: carbon steel or stainless steel;

Fireproof material: 304SS

Applicable dust: St1 and St2 dust with Kst less than or equal to 300 barg * m/s;

The effective venting area meets the venting requirements;

Installation method: Close to the equipment or pipeline, using flange connection;

After the explosion release, the explosion release plate needs to be replaced;

Can provide testing reports from domestic authoritative institutions;

Dust removal equipment flameless pressure relief device flameless pressure relief function:

1. Extinguish the burst flame - No burst flame can escape, providing a safe operating environment.

2. Retention and explosion of dust - Capture process materials and eliminate potential harmful substances from entering the environment.

3. Control the bursting pressure - absorb the peak bursting pressure, protect personnel and the surrounding environment from bursting pressure damage.

4. Control the explosion temperature - absorb the explosion fireball and keep the surrounding environment temperature almost unchanged.

Product Features:

Static opening pressure: 0.01MPa.

Material: Carbon steel/304 stainless steel.

No special maintenance is required.

We can provide an online repair structure that allows for the replacement of venting plates and cleaning of flame arresters without the need to disassemble interfaces.

The flange interface can be customized.

Compliant with EN16009 standard and passed standard testing.

Provide various forms of flameless venting structures to meet the needs of different working conditions.

No open flame design can effectively prevent huge losses caused by secondary explosion of dust

Applicable equipment: dust collector, bucket elevator, drying equipment, cyclone separator, dust collector

Dust explosion requires five elements, and when these five elements coexist, there is a possibility of explosion occurring. The five elements are as follows: oxygen; Combustible dust; Fire source; Dust cloud; confined space

Dust explosion is accompanied by strong shock waves and flames. Due to the lack of pressure resistance of the equipment, it will be damaged during the explosion, resulting in the risk of secondary or multiple explosions. So we are required to pay attention to dust explosion protection.

In order to prevent equipment from generating dust explosions or to avoid greater harm in the event of dust explosions, explosion-proof pressure relief equipment is particularly important.

Explosion venting is one of the commonly used and effective methods of explosion protection; Release pressure during potential industrial explosions and provide a well-designed pressure release!

Working Principle:

It consists of two parts, explosion-proof board and fire extinguishing module. The explosion-proof plate responds to the rapid increase in detonation pressure and immediately opens to reduce the pressure. When the expanding fireball passes through the opened explosion-proof plate, it is intercepted by the fire extinguishing module. Stainless steel precision mesh wire supported by a frame plays a three-dimensional flame capture role, extinguishing flames and ensuring that they are not spread, thereby causing secondary or multiple explosions. The fire extinguishing module eliminates the flames of detonation, reduces the temperature of hot gases, and captures the combustion and unburned dust passing through the opened explosion-proof plate. At the same time, the pressure waves or noise generated by production equipment will also be reduced to a very small level. When the flame passes through the mesh flame retardant element, the flame retardant element exchanges heat with the flame, quickly cooling the high-temperature flame, releasing pressure and smoke. At the same time, the pressure waves or noise generated by the production equipment will also be reduced. In industrial production, the combination of flameless venting devices and explosion-proof valves not only effectively prevents pressure waves and flames from spreading to the production site of upstream workshops, but also suppresses the occurrence of secondary explosion accidents, reduces property losses, and protects personnel safety.

Dust removal equipment flameless pressure relief device flameless pressure relief application fields:

Widely used in industries such as grain, metallurgy, chemical, power, light industry, pharmaceuticals, tobacco, mechanical processing, and solid waste disposal. The equipment used includes cyclone separators, bag filters, dust collectors, filter cartridges, pneumatic conveying, rod or ball mills, bucket elevators, drying and drying ovens, rolling mills, buildings, etc. The device mainly consists of a venting plate and a flame extinguishing net. The device is installed on the protected equipment. During normal operation, the venting plate is in a closed state. Once a dust explosion occurs inside the device, the overpressure of the explosion acts on the venting plate, and the force exceeds the opening pressure of the venting plate. The venting plate will rupture and open along the gap, and the explosion pressure will leak out from the gap of the flame arrester. The flame is quenched by the "burst" effect of the flame extinguishing layer to prevent the explosion pressure and high temperature generated by the flame from causing harm to surrounding personnel or equipment. Its structure is usually composed of an additional flame arrester on the basis of the venting plate.

In today's increasingly strict environmental inspections, safety has attracted more and more attention. In the past, we often used to install a venting plate on the dust collector to release the overpressure caused by dust storms. However, installing indoor equipment in this way is not permitted by the safety supervision department, as it can endanger surrounding personnel and equipment. The pressure waves and flames generated by explosive explosions may cause secondary or multiple explosions, posing greater risks. So using explosion-proof plates alone is unreliable for dust collectors. Therefore, we recommend using flameless venting and isolation technology (which is more economical) or explosion suppression and isolation technology to protect production safety.

There are three main ways to prevent dust explosions: explosion venting, explosion isolation, and explosion suppression

Explosion relief: By using a pressure relief device to release the explosive pressure in advance, the equipment is protected from damage.

Explosion proof: A explosion-proof valve is used to block the explosion and prevent the spread of flames.

Explosion suppression: Firstly, the detection device detects the sparks formed, and then feedback activates the fire extinguishing device to instantly extinguish the fire and prevent the occurrence of explosions.