Industrial powder explosion protection equipment – flameless venting, flame arrestors, explosion vent discs

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Dust explosion: A dust explosion requires five elements; when all five of these elements are present at the same time, an explosion is possible. The five elements are as follows: oxygen ； Combustible dust ； Fire source ； dust cloud ； Dust explosions in confined spaces are accompanied by powerful shock waves and flames; since equipment does not have the capacity to withstand such pressures, it gets damaged during the explosion, which can lead to secondary or multiple explosions. Therefore, we need to pay attention to dust explosion prevention. To prevent dust explosions in equipment, or to minimize damage in the event of such an explosion, explosion-proof pressure relief devices are particularly important. Explosion venting is one of the common and effective methods of explosion protection ； Release pressure in the event of a potential industrial explosion, and provide a properly designed pressure relief mechanism! Powder explosion-proof pressure relief products: blast vent discs (flat type and positive arch type), flameless release devices, explosion direction-changing valves, explosion isolation valves, spark detection and extinguishing devices, etc. https://attach01.hcbbs.com/forum/201808/18/123141tyn797lm3xyz756t.png.thumb.jpg Pressure relief discs: https://attach01.hcbbs.com/forum/201808/18/124037awnuavq6vlpzaa4v.jpg.thumb.jpg Flameless pressure relief devices: https://attach01.hcbbs.com/forum/201808/18/124134byudkdkyz0gxyee4.jpg.thumb.jpg Flameproof valves. Pressure relief discs: BasCo’s composite type of pressure relief discs, designated as PF/LF, are widely used and have set industry standards in this field. PF/LF pressure relief discs provide an effective solution for conditions ranging from static states to mild pressure cycles and slight vacuum conditions. Smoke-free release devices: These are mainly used to prevent dust explosions indoors; they have no additional operating costs, are easy to install, and do not require the installation of pressure relief ducts. It consists of at least an explosion venting device and a flame arrestor. Working principle: As the flame passes through the mesh-type flame arrestor, heat is exchanged between the flame arrestor and the flame, which rapidly cools the high-temperature flame, allowing pressure and smoke to be released. This prevents the flame from spreading and causing secondary or multiple explosions. At the same time, the pressure waves or noise generated by the production equipment are also reduced to a minimum. Static opening pressure: 0.01 MPa. Material: carbon steel/304 stainless steel. Fragment types: flat slotted type, positive arch slotted type. An optional signal output device is available for real-time monitoring of the product’s operating status. Explosion-proof system component – flame arrestor valve. In practice, many containers are connected to each other, such as dust collectors and pipes, as well as silos and pipes; if one of these devices explodes, flames and pressure can spread through the pipes to other devices, resulting in secondary or multiple explosions. Installing flame arrestor valves can effectively prevent the spread of explosions, protecting adjacent equipment or workshops and avoiding secondary or multiple explosions. Working principle: When an explosion occurs, the flame arrestor valve is quickly closed by the shock wave generated by the explosion, and it is locked in place by a mechanism to prevent the valve disc from opening, thus stopping the spread of flames and pressure waves. After the explosion, it can be manually reset, and after simple maintenance, it can be used again. During normal operation, the valve disc is opened by an auxiliary opening device. Horizontal installation, on the dust collector inlet side