Which type of blower advances into the furnace, cleans and comes back?(a) Wall blower(b) Retractable blower(c) Air heat blower(d) Insert able kinetic blowerThis question was posed to me in an online interview.I'd like to ask this question from Soot Blowers topic in chapter Steam Power Plant of Energy Engineering

Which type of blower advances into the furnace, cleans and comes back?

1.	Which type of blower advances into the furnace, cleans and comes back?(a) Wall blower(b) Retractable blower(c) Air heat blower(d) Insert able kinetic blowerThis question was posed to me in an online interview.I'd like to ask this question from Soot Blowers topic in chapter Steam Power Plant of Energy Engineering
Answer» Right answer is (B) RETRACTABLE blower For explanation: Soot blower consists of a set of TUBES fitted with nozzles carrying high velocity jet of STEAM or air. In the hotter parts of the boiler, the blower advances into the furnace, cleans the heat transfer surfaces and comes back. This type of soot blower is known as retractable soot blower.

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