Podcast
Questions and Answers
What is the purpose of screening or sieving in the context of particles?
What is the purpose of screening or sieving in the context of particles?
- To increase the particle size uniformly
- To reduce the particle size to nanometers
- To separate particles based on their size ranges (correct)
- To mix particles of different sizes together
In industrial screening, what is considered the oversize material?
In industrial screening, what is considered the oversize material?
- Particles above the screen aperture size (correct)
- Particles smaller than 40 µm
- Particles below the screen aperture size
- Particles of size below 250 µm
Which type of microscope is more suitable for handling particles as small as 0.005 µm?
Which type of microscope is more suitable for handling particles as small as 0.005 µm?
- Atomic force microscope
- Electron microscope (correct)
- Scanning microscope
- Optical microscope
What happens to particles that pass through a screen in the screening process?
What happens to particles that pass through a screen in the screening process?
How is industrial screening efficiency typically optimized in terms of material size?
How is industrial screening efficiency typically optimized in terms of material size?
What does a screen aperture size represent in the context of screening?
What does a screen aperture size represent in the context of screening?
What is the order of open screen area from smallest to largest?
What is the order of open screen area from smallest to largest?
In which zone on the screen surface does particle passage through the screen experience a low velocity?
In which zone on the screen surface does particle passage through the screen experience a low velocity?
What happens to the rate of particle passage through the screen in Zone II?
What happens to the rate of particle passage through the screen in Zone II?
Where does the thickness of material on the screen need to be at an optimum level to achieve maximum screening rate?
Where does the thickness of material on the screen need to be at an optimum level to achieve maximum screening rate?
How does an increase in the rate of feeding affect the thickness of material on the screen at the feed end?
How does an increase in the rate of feeding affect the thickness of material on the screen at the feed end?
Why does zone III have a low velocity of particle passage through the screen?
Why does zone III have a low velocity of particle passage through the screen?
What is the purpose of grizzlies in screening operations?
What is the purpose of grizzlies in screening operations?
In screening operations, what is the role of vibrating screens?
In screening operations, what is the role of vibrating screens?
How are most movable screens usually oriented to facilitate flow of feed?
How are most movable screens usually oriented to facilitate flow of feed?
Which type of screen is slightly inclined and allows feed material to roll towards the discharge end for screening?
Which type of screen is slightly inclined and allows feed material to roll towards the discharge end for screening?
What is the main benefit of providing periodic motion to screens in screening operations?
What is the main benefit of providing periodic motion to screens in screening operations?
Which type of screen assembly is powered to shake or vibrate in order to remove oversize material effectively?
Which type of screen assembly is powered to shake or vibrate in order to remove oversize material effectively?
