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How to classify dust in industrial dust removal equipment?
Dust can be classified according to different characteristics. According to the nature of dust, it can be divided into inorganic dust, organic dust and mixed dust. Inorganic dust mainly include: (1) mineral dust, such as quartz, asbestos, talcum, coal, graphite, rock, etc.; (2) metal inorganic dust, such as iron, aluminum, tin, copper, lead, zinc, manganese, rare earth, etc.; (3) artificial inorganic dust, such as cement, artificial diamond, ceramics, glass, alloy materials, etc. Organic dust mainly includes: (1) animal dust, such as hair, feather, silk, bone, etc.; (2) plant dust, such as cotton, hemp, grain, dry grass, bagasse, wood, tea, pollen, etc.; (3) artificial organic dust, such as explosives, organic dyes and so on. Mixed dust, that is, all kinds of dust mixed. This kind of dust is the most common in the production environment. In order to judge the harm of mixed dust to the human body, it is necessary to find out the chemical composition and the proportion of the dust.
According to the size and optical properties of dust particles, they can be classified into visible dust, microscope dust and super microscope dust. (1) it can be seen that the particle size is larger than 10^! The dust that is visible to the naked eye. 2. The microscope dust refers to the size of the particle from 10 to 1 25^!!! The dust visible by an optical microscope. (3) the ultra microscope dust refers to the dust that is smaller than 0.25^01 and seen under electron microscope. Particles with particle size larger than 10^^ increase in static air without diffusion.
The particle size is less than 10^1! The particles are suspended in the air. Dust particle size larger than 0.25^11, in the static air conforms to Stokes's law, and is not easy to spread, and it is not easy to spread. The dust with a particle size less than 0.25^1X1 can hardly land in the static air and is easily diffused.