Question

What is the work of the baghouse filter?

(a) To remove the hot air from furnace

(b) To separate the solid particles from dust produced

(c) To remove dust particles from flue gas

(d) To wash away the contamination of dust on the walls of furnace

The question was posed to me in a job interview.

Question is taken from Mechanical Dust Collectors topic in chapter Steam Power Plant of Energy Engineering

Answer 1

Right choice is (c) To remove dust particles from flue gas

Easy explanation: Baghouse filters are used to remove dust particles from the flue gas produced from the combustion in boiler. These are also called as fabric filters or fabric dust collectors, designed to use fabric filter tubes, envelopes or cartridges to capture or separate dust and particulate matter when the gas is made to pass through the voids.