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PURE-AIR, metal dust purifier, metal welding dust collector, efficient purification of dust!

Release date:2021-05-08 Source:Pure-Air Pageviews:-

A certain amount of metal, metal and non-metal mixed dust will be produced during the processing and production process. When the concentration of such dust in the air reaches the explosive limit, the ignition source (grinding and grinding is easy to produce sparks) is prone to explosion accidents. Especially the explosion hazards of aluminum, magnesium dust and mixed dust containing aluminum, magnesium and other non-ferrous metal components are more harmful. If the corresponding safety measures are not taken in time, it is easy to cause safety hazards. Metal dust purifier, smell filter for laser cutting pvc.

The frequent characteristics of metal dust explosions are mainly related to the following two factors

1. Metal dust is highly sensitive to fire.

The minimum ignition capacity of most metal powders is less than 10mJ. For ultra-fine metal powder, the minimum ignition capacity is less than 1mJ, which has strong ignition sensitivity. According to statistics, high-temperature surfaces, impact or friction, static sparks are common sources of ignition for dust explosion accidents.

Metal dust with high fire sensitivity can easily cause dust explosion accidents under the action of static sparks and other fire sources. smell filter for laser cutting acrylic, metal welding dust collector.

Dry vacuum cleaner

2. The result of the accident after the explosion was very serious.

Combustible dust cloud and combustible gas have high energy density, and metal particles have high energy density in combustible dust. When metal dust consumes 1 mol of oxygen, the heat released is usually 3 times that of coal dust, as shown in the following table

Because of this, metal dust is usually used as a solid fuel in aerospace fields such as rocket propellants. After a fire and explosion of high-energy-density metal dust, the instantaneous huge explosion pressure and high pressure rise speed may lead to more serious accident results.

Comparison of the treatment of metal vacuum cleaners.

1. Wet vacuum cleaner.

When choosing a wet vacuum cleaner to remove dust, use water washing and water curtain dust removal technology.

Advantages: Harmful gases whose dust removal efficiency is higher than that of dry vacuum cleaners can be purified, and the pressure loss of processing high temperature and high humidity gas is relatively low.

Disadvantages: Not suitable for treating viscous dust, not suitable for treating corrosive gases that cause equipment fouling, and waste water that is easy to corrode equipment requires subsequent treatment.

smell filter for laser cutting acrylic

2. Dry vacuum cleaner.

When choosing a dry vacuum cleaner for dust removal, use bag filter dust removal and dust removal technology.

Advantages: high dust removal efficiency, especially for fine powder, with a high adaptability of more than 99%, capable of handling different types of particle pollutants (including high specific resistance dust that is difficult to handle by electric vacuum cleaners), and the size of the dust removal efficiency is not affected by the dust concentration influences. Easy to recycle dry materials, no sludge treatment.

Disadvantages: The filter cloth is limited by its temperature resistance, corrosion resistance and other operational performance. The bag filter with a temperature below 300℃ is not suitable for dust particles with strong adhesion and strong moisture absorption. The filter bag is clogged and damaged. The operating pressure loss is large. Metal dust purifier, metal welding dust collector

If you want buy fume extractor, please contact with Dongguan Pure-Air Tech Co.,ltd, E-mail: sales@pure-airtech.com.