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2. Dust collector - Wikipedia

   en.wikipedia.org/wiki/Dust_collector

   A dust collector is a system used to enhance the quality of air released from industrial and commercial processes by collecting dust and other impurities from air or gas. Designed to handle high-volume dust loads, a dust collector system consists of a blower, dust filter, a filter-cleaning system, and a dust receptacle or dust removal system.

3. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   Industrial ceiling fans typically are not reversible and operate only in downdraft, and therefore are able to make effective use of blades that are contoured to have a downdraft bias. More recently, however, residential ceiling fan designers have been making increasing use of contoured blades in an effort to boost ceiling fan efficiency.

4. Cyclonic separation - Wikipedia

   en.wikipedia.org/wiki/Cyclonic_separation

   These two factors result in better separation of dust particulates. The pressure drop of multiple-cyclone separators collectors is higher than that of single-cyclone separators, requiring more energy to clean the same amount of air. A single-chamber cyclone separator of the same volume is more economical, but doesn't remove as much dust.

5. Industrial fan - Wikipedia

   en.wikipedia.org/wiki/Industrial_fan

   An advantage is that their single-thickness, curved plate blades prevent the possibility of dust particle buildup inside the blade, as may occur with perforated airfoil blades. The robust design allows high tip-speed operation, and therefore this fan is often used in high-pressure applications.

6. Fan (machine) - Wikipedia

   en.wikipedia.org/wiki/Fan_(machine)

   This may direct the airflow, or increase safety by preventing objects from contacting the fan blades. Most fans are powered by electric motors, but other sources of power may be used, including hydraulic motors, handcranks, and internal combustion engines. Mechanically, a fan can be any revolving vane, or vanes used for producing currents of air.

7. Axial fan design - Wikipedia

   en.wikipedia.org/wiki/Axial_fan_design

   Surging should not be confused with stalling. Stalling occurs only if there is insufficient air entering into the fan blades causing separation of flow on the blade surface. Surging or the Unstable flow causing complete breakdown in fans is mainly contributed by the three factors System surge; Fan surge; Paralleling