3 minutes of power-on
ฝัง
- เผยแพร่เมื่อ 5 ต.ค. 2010
- UPDATE: The Russians do it better! See here: /watch?v=_j2jESz7Zl8
One of the more spectacular startups of a steelmaking electric arc furnace. This video is a few years old, so practices and equipment seen here - even the whole furnace - have changed. Draws about 50-60MW of active power (65MVA for the electricians) - almost the same amount of power as a 747 needs while cruising. Recorded with a good microphone, so turn up the volume! - วิทยาศาสตร์และเทคโนโลยี
Great memories. About 40 years ago I was a technican at a steelworks. One day I had to go under the festoon cables of a 56MW furnace.
I was wearing a Seiko quartz watch. The magnetic field sped my watch up. The second hand was a blur like added 30min in a few seconds!
RIP Brymbo Steelworks, Wrexham, North Wales UK😊.
Hola, quisiera hacerte una preguntas sobre el trabajo, si fuera posible
when you drop a spoon at 2am 0:26
That thing scares me shitless. EAFs are intimidating by nature, but this one is next level. It is loud, it is dark, it is menacing. The AC-hum gives me goose bumps, and that black, soot-covered construction looks like the devils most beloved instrument of torture from the deepest hell.
You have Absolutely no idea how incredibly LOUD that is.
In addition. My very first day in the Crane. My first CHARGE we were given was a WET charge . Well
Had one hell of explosion from all the water hitting the molten Bath at the bottom of the furnace.
Not my overhead Bridge Crane of the tracks.
Had to walk the rail with only a guide wire.
Went back the next day for my 12 hours.
Had to meet the challenge to provide.
I miss it very much.
I whish I could go back to see , hear and smell the Production.
Thank you very much my friend 😊
👍🙋♂️👍👌
Hola, quisiera poder hacer le unas preguntas sobre su trabajo
When the arc first strikes, look at the sway of the cables feeding the electrodes on the left of the screen. That's caused by the electromagnetic fields. 0.0
This wild!
That's a nice demonstration of electromagnetic repulsion. That's why large transformers have to be very mechanically strong, because when under load the current tries to force the coils in the transformer windings apart.
Excuse me, please contact me if you need graphite electrode.
electromagnetic forces will do that, but in this case most of the movement is from the cooling pumps ramping up (the cables are water cooled)
Thanks for the explanation - I noticed the cables wave and was just wondering why they do so😃👍
Vacuum arc furnaces for preparing titanium metal can be even more dangerous. They generate hard x-rays.
Been looking for some electric arc furnace asmr for quite some time now, glad I found this soothing piece of calmidity 😊🎉
It really has a nice soothing "lullabye" sound doesn't it?🥱😴
I need this video on high volume at least once a week.
I worked at the EAF at wheeling Pittsburgh steel as a millwright. i can tell you this, when they are running well you can't beat them. when something goes wrong...look out!!!
They restarted mingo works did you go back
Actually... this is a small-to-medium size furnace, and generally the trend is for larger furnaces. I feel that medium begins at 80MVA and large at 140MVA. The largest AC furnace in Turkey draws 250MVA and Tokyo Steel has a Danieli-built continuous-charge 320MVA DC furnace... it's got 2 top electrodes, 4 bottom electrodes (2 per 'phase') and six - six! - transformers. What blows my mind about DC furnaces is thinking about the rectifier engineering!
Excuse me, please contact me if you need graphite electrode.
@@bieberyuan7447 trying to sell such enormous industrial parts via youtube comments with broken English... what a joke.
@@Engineer9736 it's for an AA battery.
Exactly lol what kind of semiconductors used for that?
@@astafzciba would it even be semiconductors at that much power or would it be a more old school arc rectification setup?
I think my watch stopped just watching the video. That's an incredible amount of power.
Matt Absalom I hear you! Do you feel yourself drawn towards, and plastered up against your computer screen?!?!? Look at those cables repelling!!!! Pretty awesome.
@@ramjetrabbit Wow, I just noticed that. Impressive.
@@ramjetrabbit y are the electric cables swigging?
@@AlexVeldkamp They are swinging due to the magnetic fields being generated by the flow of electricity
@@AlexVeldkamp The enormous magnetic field. Those wires are acting as a powerful enough electromagnet to jump around like that and they aren't even wrapped around a ferrous core to amplify the field. Insane
If i imagine what would it feel like to expierience the typical ambience prevailing in a place representing some kind of modern conceot of hell, my mind visualizes a scene exactely like this.
I guess, being able to witness this process for the first time must be a mind blowing and life changing impression, which you'll be acompanied by for the rest of your life (maybe even beyond !!)
Typically the power company will meter it at the high voltage level where the current levels are more manageable. Typically if it is supplied by a 34.5kV they will add metering instruments to the high voltage bus which step the current and voltage down to a level like 5 amps and 120V at full load (they connect that then to a meter socket). They can also do the same at 138kV or 345kV.
You sir are correct. I work the Melt Shop for Gerdau Ameristeel. All scap steel deliverys pass through a scale with radiation detectors on both sides. I have been told we have not recieved any radioactive material to date. It is a very good precaution and one the company has spent a boat load of money on I have been told.
That is just... Beautiful.
Ahh... one more correction. Power developed at the arc is 175MW!
Hi thanks for the memories brilliant to see
This is beautiful.
@stgloar I know that the common perception of steel mills is 'hellish' ('cause it's hot, y'all) but really, what we do here is take scrap steel, melt it and burn out the impurities (silicon, aluminium, phosphorous, sulphur, manganese, carbon). Not much else other than the metal survives - it's all incinerated - so it's pretty much a 'cleansing' fire, which I think is attributed more to heavenly than hellish sources.
Excuse me, please contact me if you need graphite electrode
Yup melt then add oxygen to burn off the impurities. Adding kilogram bricks of sodium to it afterwards to reduce the oxidized iron back to metal was amusing. 😂
@@christopherleubner6633 Sodium or silicon?
@sentinel76 both silicon is used with stuff that needs bigger metal crystals and was glitzy chunks that looked like the unobtainium out of Avatar. Sodium is used for specialty alloys since any excess can be boiled out without changing the melt chemistry other than reduction. The bricks were 2kg and dry packed in big blue plastic drums.
So...purgatory?
everybody gangsta till the electric bill comes in.
Northwestern Steel & Wire in Sterling, Illinois (a forerunner of today's minimills) was Commonwealth Edison's biggest customer once.
looks at those cables reppeling:]
Ill never forget start up on them Furnaces, it will shake your guts.
Reminds me of the missus in the morning
so much power it's making the power cables move.
how hot are those x-rays
Pov of the red back spider sitting on the leaf spring guide bracket under my trailer watching me blow holes through it with my arc welder.
Simply spectacular!!!
That is just godly
It could be very interesting and exciting how a human body behaves inside a furnace, taking into account that the average temp is about 1800°C
Sounds like a Saturn V rocket going off.
Man made chaos . It scares the Hell out of me.
When starting, the furnace gave a certain impression of hell.
it looks like a mix of "Terminator" and "Alien"
This must give the best idea what fukashima 3 reactor melt down was like prior to detonation
No problem ramjetrabbit. When molten metal splashed onto one of the oxygen lines it would become pretty hairy. Water in the furnace or in a ladle was bad too. If one of electrodes came loose and fell inside the furnace during operation it would make one Hell of a racket. There were many other dangers associated with the operation and repair. However Im limited on how much i can type on here. If you would like more info, don't hesitate in asking.
I used to have this dream when I was a kid..
@Pinkrearea234 Secondary voltage (phase-to-phase arc voltage) is about 1000V - primary is 22kV. What generates the heat in arc furnaces is the current - the current in the arcs in this furnace is about 45-50kA.
Why cant u reply like that
I see the cables moving around. I assume this to be due to the ferocious magnetic fields. Would you be able to physically feel these were you close to the cables themselves?
Yes, several kA of current must be producing strong magnetic fields.
I can't even imagine what it's like near the transformers, where the fields are stronger.
I see windmills catching fire across the country.....
@Turbocharge1000 Kinda... It's the oxygen lance. Torches a bit, but really used to inject oxygen into the liquid steel and carbon into the slag.
Crazy man !
Turns out I had a few things wrong... the tap weight is 420 tonnes but there are 8x 32MVA transformers/rectifiers for 256MVA total power (157MW developed at the arc). It was built that way due to a weak network (1700MVA short circuit power - any sparky want to enlighten?)
Yeah we know.
The quality of loud it's exceptionally high
That thing is a MONSTER!! =O
Those power cables just swingin due to huge currents and magnetic forces.
Man this brings back memories Griffin Wheel Kansas City Kansas
Thanks so much for answering me! I do have more questions. In a 3 electrode furnace, are they different poles? I'm sorry for not being able to use the proper terminology. What type of brick are these furnaces lined with? How long does this lining last? The furnace, exhaust pipe and feed cables are all water cooled. Is that correct? Is this water re-cycled? If not, that water would become hot in a short while, and no cooling effect. Thanks for your answers, these furnaces are AMAZING!
Yes, all power cables are water cooled, including the panels. The water is recycled back to stationed pump houses who rectify the error of water hardness,pressure, temperature with the assistance of mechanical personnel (always with radio for communication). This also implies to hydraulic oil leveks & pressure.
Mostly magnesitic (Mag-carbon) refractories are used (from 250-600 mm long).
Kind of scary how those cables contract and lift with the power flowing thru them.
When those, "Water cooled" cables blow, watch out, the bolts that hold Cable Lugs, on arms & feed plates from the "Magnetic" Amplifier/Transformer are stainless steel- 'Anti-magnetic" ,
Hello ! Could you tell me what is this strange metallic arm which goes into the furnace at 0:55 ?
That's a carbon/oxygen manipulator. It allows the introduction of oxygen and carbon through lances in to the slag door of the electric arc furnace for cleaning, decarburisation and to aid the foaming slag. The EAF I used to work on had one of these back14/15 years ago. The EAF I work on at present does not, it uses 3 oxy/gas injectors, 2 of which also inject carbon and a slag door with an oxy/gas injector or burner as we call it to help aid with the cleaning of the slag bay. This is required to slag off and take steel samples/Temperature/Oxygen and carbon readings needed to allow you to tap the furnace.
Hope this answers your question.
That is one evil sound
The cables swaying from the current is creepy.
Most of the powerful things and sounds like explosion
What are the electrodes made of, that they are capable of withstanding that??
Synthetic graphite. Take needle coke from an oil refinery fluidic catalytic cracker, shape it, infuse it with pitch and bake multiple times, then graphitise at 3000ºC by passing electricity through the electrode.
@@sentinel76 Thanks!
@@sentinel76 no way how do you know that, but in all seriousness graphite goes hard. Where can you learn about these things?
It been 20 years since I worked the melting floor (I'm in Met QA now) and I still have nightmares about it.
I just worked my first day as a MET trainee for one of these fire-breathing beasts... no doubt this is the most dangerous job I will ever work.
Did the police arrive in time to serve notice for the noise complaint? You can hear their siren in the beginning.
You say that this furnace was replaced? How old was it?
Dang! First explosion reminded me of half life 1
Shocking
is that an oxygen torch at the bottom side?
Arc fernace?
This is my toaster...
Excuse me, please contact me if you need graphite electrode
One day will come when a man will be able to harness the power of the sun... THAT man will be the master of the world... Even 1000 times the most powerful arc furnace of the world will look like a match... Be ready, the day will come soon and each of you out there shall kneel down at your Master...
That's HIGH VOLTAGE!!!!!!!!
And a lot of amps
I'll bet if that one at Tokyo Steel wasn't strapped down you could use the magnetic field to warp time and travel through space at warp speed ;-)
This reminds me of the machine in Superman 3.
My vision of hell
bet the power company knowes when that thing starts
ray704ful $2000 just to melt one load of steel!
@@AldoSchmedack On scale of medium/large businesses 2000$ is nothing
damn damn thats real power !@!!!!!
Let the melting begin, and by the way where did you record this sentinel76
How do you compare megawatts and kilonewtons?
You can’t, they’re two separate things, one measures energy in joules per second, the other force
Are the cables repelling due to electromagnetic induction?
yeppers. Don't stand too close to them if you have a pacemaker.
Looks like Fukushima 3 reactor self distructing !!
Just what the hell is that thing? Holy shit.
@gjgjkg I hope not! Any steel mill melting scrap - and that includes integrated mills making steel from iron - would have radiation detectors installed that screen all scrap deliveries to ensure that nothing radioactive gets through.
nice harsh noise track
Hold on, I gotta charge my iPhone.....
I think there's a short
That's some crazy 💩⚡⚡🤫
Explain what you mean by "when something goes wrong with them...look out!!" I find these furnaces EXTREMELY fascinating. The power involved is staggering or humbling. Talk to me...please.
Look up eaf wet charge
@@jeremielavigne5103 also burn throughs !
wwe divas steel mill heat🔥🔥🔥🔥🔥
$7,000,000 a month electric bill 😮
How can you work in that environment and not have a constant headache?
You get used to it, same as any job, no matter how stressful, noisy, dangerous, or boring it is
Rick Martin your not out there when its charging normally
I need that much juice to jump start my Hummer.
was that a furnace?
They are melting steel with an electric arc. Until you have seen it in person you won't believe it and once you have you will never forget the sounds and smells.
Black Lightning birth...
I don't remember this Death Grips song.
more like merzbow
Its Just so bloody pissed off...
Who the fuck figured out how to make a machine like this?!
Paul Héroult I believe - the same Paul Héroult who was co-inventor of the Hall-Héroult process for aluminium electrolytic reduction
Crazy how these huge cables are swinging around, pushed around by the ridiculous currents flowing through them.
electricity is amazing. without it we wouldn't be alive....and yet it can kill too. mother nature is awesome. a single lightning bolt can be up to a billion volts and 10's of thousands of amps if not over 100k!
Blow out subwoofers :D
meh... my last dental visit was like that but twice as long.
Which uses more electricity: an EAF, or bitcoin mining?
Surprisingly, the bitcoins.
Empty the furnace, cool it, put a person in there and tell him to grasp the electrode. Then power it on. What happens?
vaporization
Jon Sands i suppose that would be one way to deal the death penalty, they problably would not even feel it, or the process of quickly taking care of the dead instead of using an incinerator for an hour and a half slowly burning down, this would have so much juice it would be lightning fast and done, dont know what if anything would be left to bury or have to put into a box. :( we all have to go sometime though.
might be kind of an interesting way to go though , or have the burning done by putting the corpse into the firebox of a steam engine, give them the ride to the promised land, one for the road, or one last run , but you would have to run it at road speed to get that good draft on the fire and get that 3000 degrees that it would burn at with the draw on it at that speed.
or how fast a plasma arc furnace would do the job go to wonder even if it is morbid and twisted humor on my part, if a plasma cutter can consume steel as fast as it does.
Thedeoradude In that furnace they would. They would be fucking atomized.
+Thedeoradude a typical arc furnace operates continuously at TWICE the melting point of bone and teeth (and steel, for that matter). Not only would there be zero residue, they would become vapor in a couple of minutes
+Thedeoradude at this temp and power there would not be much left, a retort for the purpose is about 1500-2200 degrees f, this molten steel is about 28 to 3100 or slightly more degrees, bone burns away at about 2500 or so that is the calcium carbinate which makes up the bone, lime that is, and you know what they used to use lime for, heh well the lime light was just that in an earlier period of theater it is very bright as I found out by trying an oxy cutting torch on and rolad antacid tablet, which was soo bright even the cutting goggles were not enough to prevent me from seeing spots, but yes if you did it at the temp all you have left was carbon and maybe lime ash which could be used to make quicklime, and I would say vapor in less then a few minutes, more like problably 1-2 minuts or at least the soft tissue, you have to understand how much power it takes to power something like this,
Did you see those electrodes descending and the cables to the left dancing from the induced current? I bet that was loud and scary.
At 110MW 80,000 amps..... I wouldn't want that thing on my balls!
Hi
I wonder what the feminists are saying about the male-female ratio of workers there. Fucking nothig, that's what.
Might be a good mic, but the level is still clipped to hell.
Around 130 dB