Cyclones - Revision history

Admin at 09:34, 27 September 2012

2012-09-27T09:34:21Z

← Older revision		Revision as of 03:34, 27 September 2012
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	[[File:Cyclone_seperator.png\|thumb\|right\|Cyclone seperator]]		[[File:Cyclone_seperator.png\|thumb\|right\|Cyclone seperator]]
	[[File:Vertical-cyclone.jpg\|thumb\|right\|Airflow diagram for ~~Aerodyne~~ cyclone in standard vertical position. Secondary air flow is injected to reduce wall abrasion.]]		[[File:Vertical-cyclone.jpg\|thumb\|right\|Airflow diagram for a cyclone in standard vertical position. Secondary air flow is injected to reduce wall abrasion.]]
	'''Cyclones''' use a method called cyclonic separation. It removes solid particulates from an air, gas or liquid stream, without the use of filters, through vortex separation. Rotational effects and gravity are used to separate mixtures of solids and fluids. The method can also be used to separate fine droplets of liquid from a gaseous stream.		'''Cyclones''' use a method called cyclonic separation. It removes solid particulates from an air, gas or liquid stream, without the use of filters, through vortex separation. Rotational effects and gravity are used to separate mixtures of solids and fluids. The method can also be used to separate fine droplets of liquid from a gaseous stream.


	A high speed rotating (air)flow is established within a cylindrical or conical container called a cyclone. Air flows in a helical pattern, beginning at the top (wide end) of the cyclone and ending at the bottom (narrow) end before exiting the cyclone in a straight stream through the center of the cyclone and out the top. Larger (denser) particles in the rotating stream have too much inertia to follow the tight curve of the stream, and strike the outside wall, then falling to the bottom of the cyclone where they can be removed. In a conical system, as the rotating flow moves towards the narrow end of the cyclone, the rotational radius of the stream is reduced, thus separating smaller and smaller particles. The cyclone geometry, together with flow rate, defines the cut point of the cyclone. This is the size of particle that will be removed from the stream with a 50% efficiency. Particles larger than the cut point will be removed with a greater efficiency, and smaller particles with a lower efficiency.		A high speed rotating (air)flow is established within a cylindrical or conical container called a cyclone. Air flows in a helical pattern, beginning at the top (wide end) of the cyclone and ending at the bottom (narrow) end before exiting the cyclone in a straight stream through the center of the cyclone and out the top. Larger (denser) particles in the rotating stream have too much inertia to follow the tight curve of the stream, and strike the outside wall, then falling to the bottom of the cyclone where they can be removed. In a conical system, as the rotating flow moves towards the narrow end of the cyclone, the rotational radius of the stream is reduced, thus separating smaller and smaller particles. The cyclone geometry, together with flow rate, defines the cut point of the cyclone. This is the size of particle that will be removed from the stream with a 50% efficiency. Particles larger than the cut point will be removed with a greater efficiency, and smaller particles with a lower efficiency.
	Airflow diagram for ~~Aerodyne~~ cyclone in standard vertical position. Secondary air flow is injected to reduce wall abrasion. Airflow diagram for ~~Aerodyne~~ cyclone in horizontal position, an alternate design. Secondary air flow is injected to reduce wall abrasion, and to help move collected particulates to hopper for extraction.		Airflow diagram for a cyclone in standard vertical position. Secondary air flow is injected to reduce wall abrasion. Airflow diagram for a cyclone in horizontal position, an alternate design. Secondary air flow is injected to reduce wall abrasion, and to help move collected particulates to hopper for extraction.


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	[[File:Horizontal-cyclone.jpg]]		[[File:Horizontal-cyclone.jpg]]

	Airflow diagram for ~~Aerodyne~~ cyclone in horizontal position, an alternate design. Secondary air flow is injected to reduce wall abrasion, and to help move collected particulates to hopper for extraction.		Airflow diagram for a cyclone in horizontal position, an alternate design. Secondary air flow is injected to reduce wall abrasion, and to help move collected particulates to hopper for extraction.

Admin at 09:23, 10 March 2012

2012-03-10T09:23:59Z

← Older revision		Revision as of 03:23, 10 March 2012
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	* Please start editing this page after the /noinclude		* Please start editing this page after the /noinclude
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	[[File:Cyclone_seperator.png\|thumb\|right\|Cyclone seperator]]		[[File:Cyclone_seperator.png\|thumb\|right\|Cyclone seperator]]
	~~Vertical-cyclone.jpg~~
	[[File:Vertical-cyclone.jpg\|thumb\|right\|Airflow diagram for Aerodyne cyclone in standard vertical position. Secondary air flow is injected to reduce wall abrasion.]]		[[File:Vertical-cyclone.jpg\|thumb\|right\|Airflow diagram for Aerodyne cyclone in standard vertical position. Secondary air flow is injected to reduce wall abrasion.]]
			'''Cyclones''' use a method called cyclonic separation. It removes solid particulates from an air, gas or liquid stream, without the use of filters, through vortex separation. Rotational effects and gravity are used to separate mixtures of solids and fluids. The method can also be used to separate fine droplets of liquid from a gaseous stream.

	'''~~Cyclonic separation~~''' is a method ~~of removing~~ particulates from an air, gas or liquid stream, without the use of filters, through vortex separation. Rotational effects and gravity are used to separate mixtures of solids and fluids. The method can also be used to separate fine droplets of liquid from a gaseous stream.

Mark at 10:06, 8 March 2012

2012-03-08T10:06:18Z

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 * Please start editing this page after the /noinclude
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