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Join Date: Jul 2007
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Electrostatic Precipitator

09/29/2009 11:29 AM

We are observing abnormal sound from ESP chamber as well as heavy smoke from stack. These both things happened at same time then we switched OFF ESP for 1-2 minute then everthing becomes normal. what may be the reason. Pls let me know.

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Pathfinder Tags: ELECTROSTATIC PRECIPITATOR
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#1

Re: Electrostatic Precipitator

09/29/2009 12:13 PM

It could be arcing igniting a cloud of dust as the ESP is switched off, as there is still residual current causing sparking. Is yours a wet type ESP? If so, check to ensure that the water continues to spray until it is completely shut down.

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Anonymous Poster
#2
In reply to #1

Re: Electrostatic Precipitator

09/29/2009 11:05 PM

No Sir, Our ESP is not a dry type ESP.

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#3
In reply to #2

Re: Electrostatic Precipitator

09/30/2009 1:50 AM

Did you do as I suggested and allow the water to keep spraying for a while after shutdown? If so, what was the outcome? This is because when the power is switched off, the dust will no longer remain attracted to the plates and can float off. If the sparks are still discharging, some of the dust may ignite, causing the smoke.

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#4

Re: Electrostatic Precipitator

09/30/2009 9:24 AM

'"We are observing abnormal sound ..." Please clarify this "sound". This is like taking a car to the mechanic and saying it doesn't sound right. As Mr. Vader points out, this could be a fire, or could be a mechanical break, or other problem.

"... as well as heavy smoke from stack." Again, please clarify. Is this truly "smoke", as from a fire, or just a heavy concentration of ash particles? If truly smoke, then, again, Mr. Vader could be correct that you have an arcing problem between your plates or wires and you are igniting dust inside. The mini-dust explosions could be what you are hearing, or results of a small fire. However, if your "smoke" is really ash, then your ESP is no longer functioning properly and you need to evaluate the problem more deeply. As mentioned, if this is wet ESP, make sure your water supply is adequate and plates are properly cleaned, and not caked with wet ash. Make sure your hoppers are cleaned out.

As a precaution, check exhaust flue gas for CO before opening the ESP for inspection as a smoldering fire could exist that would erupt into full fire with exposure to oxygen when access doors are opened.

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#5

Re: Electrostatic Precipitator

09/30/2009 3:19 PM

If he has ESP (extra sensory perception) surely he can find out for himself!

Sorry what is ESP in this context?

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#6
In reply to #5

Re: Electrostatic Precipitator

09/30/2009 10:33 PM

ElectroStatic Precipitator.

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Anonymous Poster
#7

Re: Electrostatic Precipitator

11/20/2009 12:57 AM

Please email me the type of EPS you have to give you some ideas, fhromero@yahoo.com

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