What are the basis for the selection of dust collector?

What are the basis for the selection of dust collector?

The work of the dust collector not only directly affects the reliable operation of the dust removal system, but also relates to the normal operation of the production system, the environmental sanitation of the workshop and surrounding residents, the wear and life of the fan blades, and also involves the waste of economically valuable materials. Recycling issues. Therefore, it is necessary to design, select and use the dust collector correctly. When choosing a dust collector, it is necessary to fully consider the primary investment and operating costs, such as dust removal efficiency, pressure loss, reliability, primary investment, floor area, maintenance management and other factors. According to the physical and chemical properties, characteristics and production process requirements of the dust, targeted Select a dust collector carefully.

According to the requirements of dust removal efficiency

The selected dust collector must meet the requirements of emission standards.
Different dust collectors have different dust removal efficiencies. For dust removal systems with unstable or fluctuating operating conditions, attention should be paid to the impact of flue gas treatment volume changes on dust removal efficiency. During normal operation, the order of efficiency of the dust collector is: bag filter, electrostatic precipitator and Venturi dust collector, water film cyclone dust collector, cyclone dust collector, inertial dust collector, gravity dust collector

According to gas properties

When choosing a dust collector, factors such as air volume, temperature, composition, and humidity of the gas must be considered. The electrostatic precipitator is suitable for flue gas purification with large air volume and temperature <400°C; the bag filter is suitable for flue gas purification with temperature <260°C, and is not limited by the amount of flue gas. When the temperature is ≥260°C, the flue gas The bag filter can be used after cooling down; the bag filter is not suitable for flue gas purification with high humidity and oil; flammable and explosive gas purification (such as gas) is suitable for wet dust collector; the processing air volume of cyclone dust collector Limited, when the air volume is large, multiple dust collectors can be connected in parallel; when it is necessary to remove dust and purify harmful gases at the same time, consider using spray towers and cyclone water film dust collectors.