Are Our Understandings of Cyclone Separators Misguided?

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In summary, the notion that particles are thrown to the outside and slowed by friction until they fall in cyclone separators that work with water is incorrect. This has been observed through homemade separators and experiments with water and particles. Additionally, bagless vacuum cleaners and water/oil separators also use a similar principle of operation.
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styart
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Why is science explaining how cyclone separators work, is so wrong, at least those that work with water, the notion that particles are thrown to the outside and slow by friction until they fall is just wrong.
I have built several homemade separators from transparent plastic and have observed them in action, the particles go into a narrow column in the center of the separator and gradually fall.
If you don't believe me try this experiment, fill a tall glass with water, stir vigorously and drop in particles like sugar or similar, and watch what happens.
 
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Welcome to Physics Forums. :)

I believe some bagless vacuum cleaners use a cyclone principle. Do they fit the description you decry?
 
  • #3
Water/oil separators are common appliances, look for their principles of operation, usually the first section of the operators manual. My ships had two centrifugal and one gravity separator.
 

1. What is a cyclone separator?

A cyclone separator is a type of mechanical device used for separating solid particles from a gas or liquid stream. It utilizes centrifugal force to separate the particles, which are then collected in a separate container while the clean gas or liquid continues on its path.

2. How does a cyclone separator work?

A cyclone separator works by creating a vortex or cyclonic flow, which forces the particles to travel towards the outer wall of the separator. The centrifugal force causes the heavier particles to move towards the outer wall while the lighter particles are carried along with the gas or liquid. The separated particles then drop into a collection container at the bottom of the separator.

3. What are the advantages of using a cyclone separator?

There are several advantages of using a cyclone separator, including its low cost, low maintenance, and high efficiency in separating particles. It also has a small footprint and can handle a wide range of particle sizes and types.

4. What are the common applications of cyclone separators?

Cyclone separators are commonly used in industries such as mining, pharmaceuticals, food processing, and chemical processing. They are also used in air pollution control systems to remove particulate matter from industrial exhaust gases.

5. Can a cyclone separator handle abrasive materials?

Yes, cyclone separators are designed to handle abrasive materials and are often used in industries where there is a high concentration of abrasive particles in the gas or liquid stream. However, the materials used in the construction of the separator may need to be more durable in order to withstand the abrasive particles.

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