Which of the following statements about a cyclone is true?

• A. An example of a primary dust collector is a cyclone.
• B. An example of a secondary dust collector is a cyclone.
• C. A cyclone is used for liquid separation only.
• D. A cyclone does not function as a dust collector.

Answer: (A)

The statement that a primary dust collector is a cyclone is accurate because cyclones are specifically designed to separate larger particles from gas streams through centrifugal force. In many industrial applications, cyclones serve as the first stage of a dust collection system, capturing the bulk of particulate matter before it can reach more sensitive or complex filtration systems. This primary function is crucial for maintaining a cleaner system and minimizing wear on downstream equipment.

By utilizing the principles of inertia and centrifugal force, cyclones effectively remove dust and larger particles, making them an efficient choice for the initial filtration of dust-laden air or gas. Their simplicity and effectiveness in solid-gas separation make them a standard in various industries, confirming their role as primary dust collectors.