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To: Little Bill

***Everyone that has operated a Coal Fired Boiler KNOWS that you have to balance the Amperage among the pulverizers in service, ***

Not so on this unit. Here we have B&W MPS-89 pulverizers with STOCK feeders, and amps depend on the particular load we have on that particular mill. Right now I am carrying lower loads on the top burner mills with lower amps because I don’t want to slag up the reheat area.
Lower mills are carrying higher loads with higher amps due to the heavier coal input into them.

B&W Boiler, 528 MW right now. Six mills in service.


60 posted on 12/19/2007 2:22:01 PM PST by Ruy Dias de Bivar (Only infidel blood can quench Muslim thirst-- Abdul-Jalil Nazeer al-Karouri)
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To: Ruy Dias de Bivar
Lower mills are carrying higher loads with higher amps due to the heavier coal input into them.

What does the answer that you gave me tell us about our argument? What would give you an indication that one of your Mills was failing aside from load and secondary air temperature, The first indication?

I am retired and haven't done coal in years, we used Foster Wheeler, Penn, and CE.

If you don't have tilts not a bad way to do it, if you can get the damned stuff below fusion, the secondary Superheater still takes a beating, but it most give you a good handle on NOX control if the tuning is correct.

62 posted on 12/19/2007 3:01:53 PM PST by Little Bill (Welcome to the Newly Socialist State of New Hampshire)
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