When recovery boilers go bad.

[Frogmonster]

Panzeux, with black liquor? Shit! That sucks more than anyone should ever experience. How are you doing?

[Panzeux]

I just boiled myself with that fucking liquor 2 days ago.... 40% of my body....all this because of someone else's fault.

[Frogmonster]

No. Thankfuly. This is the pulpmill north of town.

[hemi62]

So was that the same place that burnt done two years ago? Plywood plant?

[spinjector]

Well that's not good.

[RisuMiso]

I wouldn't want to be poking the nozzles when that happens.

[mikeyh01]

It looks worse than it is. Granted, we have 2 ID fans for each boiler, but still, just send someone to restart the fan, or initiate an MFT. ESP? Why wait 4 hours if it can be avoided? RBs are not for the faint of heart...

[randommagnum]

That doesn't look good. That looks bad...and serious!

[bobby472]

Im supposed to be going into this profession. I'll be sure to stand clear of situations like this.

[carl0817]

ive worked inside the power plant boilers repairing them with refractory damm hard work

[Smeltwater]

We used to get that when the ID tripped. FD fan was interlocked to ID by zero speed switch. ID fan takes for ever to wind down after a trip. Changed interlock to mimic Id fan trip solenoid valve. Worked great, not perfect but much improved.

[phatrides222000]

wow so id fan tripped and boiler didnt. My guess is the boiler cooked.

[circletree]

that looks like fun, especially all the burnt wires that have to be repulled. our boiler(ahlstrom) would go positive whenever we lost power, which happened a lot with thunderstorms. much fun!

[tpvalley]

whats the id fan and what is the black/red liquor?

why did u get pressure blowing flames back when u lost power?

In fact whats going on here?

[MizzMethane]

I'm no boiler expert, but after doing some reading after I saw this video, I can offer the following ideas....1) black liquor is a byproduct of the kraft paper making process. It's red because it is sent to the recovery boiler to use as a fuel and for chemicals to be reused. ID fan is induced draft fan, which maintains a slight negative pressure in the boiler. If the fan fails, the boiler "goes positive" and you see that stuff flying all over the place like that.

[bobotkc]

shittty! I would like to get some experience with Power and Recovery boilers. Oh well Im stuck running 4 Cleaver Brooks Package fire tubes for now...

[Frogmonster]

It was at Northwood. #1 boiler. The ID fan just decided to quit and the high pressure limit was jumpered. Safety first at Canfor eh?

[computer188]

@Frogmonster

How do plants like that get away with jumping Limits like that? What did the boiler inspector say?

[bobotkc]

@computer188 Boiler inspectors dont do shit in the most cases.... Im a power engineer and the stuff I see the Inpsector let go makes me want to smash my head against the wall....

[eppnat]

Superheater tube leak?

[metalhead42069]

holy shit...what year was that! what mill? Northwood? or PG pulp?

[ddd150]

looks scary at the boiler room

[doidaco]

the interlock of furnace high pressure didn`t work or just there is no interlock

[gotharn1]

Yeah shit happens, where is this boiler?

[Frogmonster]

Prince George B.C. Canada.