Dust precipitators
Use the following labels to label the different parts of the dust precipitator.
Waste gases without smoke
particles
Positive earthed
plates
Smoke
particles
Dust
collector
Charged negative
grid
Chimney
Waste gases containing
smoke particles
Paint spraying
Use the following labels to label the different parts below.
Spray can
Positively charged
Negatively charged
Bicycle frame
Task: work in groups of 2-3.
Electrostatic dust precipitators are used to remove smoke / dust
(ash) particles from chimneys of factories and power stations that
pollute the atmosphere. Describe and explain how a dust
precipitators works. Use the following keywords to help you.
Keywords: charged, smoke, positively, falls, high-voltage, attracted,
unlike, particles, dust, vibrated, collector, charges, negatively,
opposite.
Task: work in groups of 2-3.
Static electricity can be useful for paint spraying such as cars,
bicycles. Describe and explain how a bicycle frame is sprayed evenly
over with paint without wasting any of the paint. Use the following
keywords to help you.
Keywords: gun, like, even, friction, attracted, repel, opposite, coat,
charged, repel, paint.