More Lodge
Just completing the history of the Lodge precipitator. Previously I showed
two experiments.
This is the later practical version produced by Cottrell. Variants on this form are still in common use. Practical versions have dozens or hundreds of coaxial pipes. I've placed it next to a factory-style building which might contain forges or smelters.
Before turning on the charge:
Air laden with dust and smoke simply passes through. Nothing falls into the hopper below.
= = = = =
After turning on the high voltage:
Particles are ionized and attracted to the inner rod electrode or the outer cylinder. They cling to the electrodes, and a tapping hammer (not shown) loosens the mass every few seconds so it can fall into the hopper. The air itself is also ionized into ozone, which the EPA describes as a "pollutant" because EPA's job is to ban all effective pollution control.
Self-calibration: This isn't a good animation because I didn't find this device especially interesting. I simply wanted to complete the history and move on to a more interesting subject.
Labels: Lodge