Dust removal mechanism of wet dust collector
2020-03-25
wet dust collectorIt is a process of separating and trapping dust particles by using washing water or other liquids in contact with dust-containing gases, and transferring from the gas flow to a liquid. This transfer process depends mainly on three factors: the size of the contact surface area between the gas and the liquid; the relative motion between the two fluid states of gas and liquid; and the relative motion between the dust particles and the liquid.
Inwet dust collectorThe dust removal mechanism is mainly based on the contact method of gas and liquid, and there are two connection methods. One is the contact of a gas with an atomized liquid film or a liquid film, and the dust catcher is in the form of a droplet or a liquid film, for example, a Venturi dust collector, a water film dust collector, a spray dust collector, and the like. The other is that when the gas hits the liquid layer, it bubbles and generates bubbles of different sizes, and the dust is deposited in the bubbles, such as a foam dust collector, an impact dust collector, a self-exciting dust collector, etc.
No matter how liquids and gases come into contact,wet dust collectorThe dust removal mechanism is inertial collision. The inertial collision between dust particles and droplets is the basic dust removal effect. If the dust-containing gas encounters obstacles (such as droplets) during the movement, it will change the direction of the airflow and flow around the object. The motion trajectory of dust particles that can be trapped in the distance is the limit trajectory, in which the tiny dust particles flow around with the airflow, and the motion trajectory changes from a straight line to a curve. Larger particle size (greater than 0.3μm) And the dust particles with higher density have greater inertia, so they break away from the streamline of the airflow and keep moving in a straight line, collide with the dust catcher and are trapped, so that the dust-containing gas is purified.
With the further development of China's power, cement, iron and steel, non-ferrous metals and other industries, the country's requirements for environmental protection have also been further improved. Duewet dust collectorExcellent performance in terms of dust removal efficiency, has achieved a rapid development trend.
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