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Ladle stirring

  Ladle stirring experiment     3 of 4
 

Java applet should appear here Have a go!Now investigate the effect of inclusion size on flotation velocity by selecting different inclusion sizes.

  1. If you have access to a printer, print out this page;
  2. Turn the stir speed to zero and select an inclusion diameter of 1 m. This will restart the simulation;
  3. After 30 seconds, record the number of remaining particles and the number of agglomerations in the table;
  4. Now turn the stir speed to its maximum value and re-select 1mm to restart the clock;
  5. Again, after 30 seconds, record the number of remaining particles and the number of agglomerations in the table;
  6. Repeat steps 2 to 5 for inclusions sizes of 5, 15, 30 and 50 m;
  7. Plot your results on a graph;
  8. What are your main conclusions?
  No stirring Maximum stirring
Initial inclusion diameter / m Inclusions remaining after 30 s Agglomerations in first 30 s Inclusions remaining 30 s Agglomerations in first 30 s
1        
5        
15        
30        
50        

N.B. Both the inclusion sizes, and their velocities have been artificially increased to accelerate this simulation.

 

 
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