My Father worked here far many years, located in Helensberg NSW, he took my brother and I down to the underground stables where they used to keep the pit ponies, it still had hay, harnesses and fences all intact. I later worked there for a weeks work experience, underground with a mechanical fitter, repairing shuttle cars etc. It was 100 years old then, great to see it is still operational.

@dat581

3 жыл бұрын

Walking the returns back to pit bottom is like walking back in time.

@vaishalipatil6197

10 ай бұрын

❤

@Gokturkk86

3 ай бұрын

Is this mine in Australia? I thought over there all mines are open pit mine!

I spent a lot of time in Cliff's Oak Grove Mine in Alabama working on scoop batteries and chargers. Ran from 800' to 1200' down with elevators at each end about 12 miles apart. I was in Jim Walter which was 2k ft down. I miss working with the miners , great bunch to work with.

@muhammedakbar9228

3 жыл бұрын

Can u clarify some novice thoughts.....how we identify the location for mines? There is no internal undergroundwater ways as we see in openwells & borewells? How the long underground passage survive uncollapsed?

@LkOutMtnMan

3 жыл бұрын

@@muhammedakbar9228 They use sounding sonar that penetrates the ground for 5km then reflects back . The transmitters are only 30W but powerful enough to trigger minor earthquakes when they are used. The military has more powerful transmitters that they use to locate caves, mines, voids underground as they fly over a landscape. To the mining roof support-coal mines insert roof bolts into the ceiling with epoxy in front of the bolts to secure them every 5' apart. The other method is to use large wood beams across and supported by "cribs" with heavy gauge screen wire in between sections of the mine to catch any pieces that break loose they call "widow makers".

@asafgl4281

2 жыл бұрын

You miss... Why did you stop?

@LkOutMtnMan

2 жыл бұрын

@@asafgl4281 I was 65yrs old and had been lifting 200lb battery cells , carrying them to the coal scoop batteries then installing them. My lower back started giving me trouble due to previous injury years earlier.

@asafgl4281

2 жыл бұрын

@@LkOutMtnMan i understand now.. I was a miner in a copper mine in middle east, first month my back , especially my lower and middle back.. But one day i woke up at morning and felt no more... It came back only after i have stop working there....by the years almost every one who suffered from back issue will suffer again... From my experience solution is go to chiropractor for adjusting...after few times one after another you will see an improve...

I have so much respect for these men it’s crazy god bless you guys and be SAFE!!!!!!!!!!!!👍👍👍👍

@mikethatguy27

3 жыл бұрын

Same here! Them coal miners are a different breed. I'd be freaking out that's its caving in. Respect 💯💪💪

That longwall thing with roof supporters was some Sci-Fi shit

Great video on coal mining and the two different methods used especially long wall mining and to see how it’s done, thanks

@dat581

3 жыл бұрын

Not really the two methods here. The purpose of the Continuous miner panel is to set up the next longwall block for extraction. Yes the coal mined by the C/M is added to the total but that is not really the point of it's operation.

Wow, very mechanically entertaining and insightful - don't like music in the background of such machinery videos but this choice of sound was good, combined with sounds from the machines. Could watch this 100 times over

"Outbye" or outby means away from the coal face...inby means towards the face where coal is being mined.

@grendelum

5 жыл бұрын

Mad Mike - funny, I just learned that just yesterday watching a video about a longwall coal mining explosion...

@4WSPrelude

5 жыл бұрын

It's funny, I use inbye and outbye to describe my on surface destinations since joining the mining world.

One of the best videos for showing the different facts of an underground cal mine I have seen. Shows you why the boys should get paid big bucks. Hot, wet, gassey, humid, muddy, dusty, cold in winter, hot in summer.......great video.

@seanbrophy9096

3 жыл бұрын

The ambient temperature tends to not fluctuate at the face between seasons. However humidity is unbelievable.

@skyes7369

Жыл бұрын

@@seanbrophy9096 I was surprised how warm it was underground. For some reason I thought it would be cold so when I went under for a pilot I was really surprised to be sweating!

1:43 that's me.

@ManagingVideo

4 жыл бұрын

@@tytuselmore6546 engineering .

@lauchlanmenegon5916

4 жыл бұрын

Most of the guys have 2 heads and no bràin

@NRG450

4 жыл бұрын

Must have been a special occasion for you to get out of the cribroom :)

@bradporter482

Ай бұрын

Johnno..... Miss ya matey

It's funny how it looks exactly like where I'm from in the coal fields of Southwest Virginia Appalachian mountains. The mine, prep plant, and the surrounding mountains. You can't tell much of a difference from an aerial view. I no longer live there, but growing up everyone I knew had something to do with coal. The Obama years sure took its toll on an entire region. Those joy miners and shuttle cars were developed where I grew up. This way of mining coal was developed in the Appalachian mountains of Ohio, Pennsylvania, Kentucky, West Virginia, and Virginia. Amazing! I know guys who would travel all over the world educating coal producers. Now Peabody mines coal all over the world, including out West and Illinois. My brother n law is a foreman in Alabama. I guess Peabody is Americas largest coal producer. I don't think I've ever seen a piner like this one. Is this a long wall mines. I've never seen a long wall supports like these either. Of course it's been years since I've been underground. Yes I have since I got a better look.

@nick_019

2 жыл бұрын

I know you probably moved a long time ago but a couple weeks ago I saw a surface operation right outside of Grundy. You know of any coal companies still operating in Buchanan County or the surrounding areas?

@ArthurDentZaphodBeeb

Жыл бұрын

Fun fact: Significantly more coal mines closed and went BK under Trump than Obama's 8 years combined.

@rixyz7013

8 ай бұрын

Jennmar is currently the largest coal company in the planet. We have mines placed everywhere, even in different countries

@virginianative847

4 ай бұрын

I’m from Grundy Va and mine

@virginianative847

4 ай бұрын

@@nick_019I work in a mines in Grundy Buch 1 it’s huge

Really a nice work presenting this video well mechanised mine

One spark and that goes boom. And the lungs. This can’t be safe. These guys are tougher than I’ll ever be.

Great video. This is the stuff that not only helped build our modern civilization, but keep it running. Coal is one of the most important resources ever harnessed by humanity.

@devtrash

4 жыл бұрын

nah that's nuclear

@skyes7369

Жыл бұрын

@@devtrash He did say "one of"...

Good to see Joy still at the forefront with their mining technology 👌👌👌👌👌🇬🇧🇬🇧🇬🇧🇬🇧

Tidy Mine, excellent video , when someone asks how its done , "Well , here's how"

@dayadaya9512

4 жыл бұрын

Daya

@663rainmaker

4 жыл бұрын

Damien Ward Wyoming USA 🇺🇸 Coal!! Moved Mountains 🏔 Hanna Wyoming USA 🇺🇸 Gillette Wyoming USA 🇺🇸 Powder River Coal cleanest Coal on Earth... Lands Reclaimed! Thee Mile overburden Blown Off the CoaL Seams in One SHOT ! KeeeeerrrBlewwwie! Check out the Videogates of Wyoming USA 🇺🇸 Coal mining ⛏ industry

Bigger stones than me.....thanks for all you do!

I only spent 6 years in an underground pit. Got in as a 47 y/o cleanskin during the mining boom. Out with the bust. This bought back memories. As a car driver and sometimes cablehand and general dog's body in development panels of a bord and pillar mine. The warning sound of the miner's movements gave me flashbacks. It is a very shitty place to work but the pay was good enough and we had lots of laughs while doing a tough gig. Sadly, the best thing about the place was the blokes and the worse thing about the place was the blokes. A bigger collection of dumb, lazy overpaid morons I have never met! We went bust due to low coal prices and increased operating costs. We killed cables and gear like it was free! Those that wasted their pay and didn't find another high paying mining gig are now learning what it's like to be a labourer on 50k a year. Glad to have ticked that box and be debt free but very glad to be out of it and shiftwork. Stuff that, life is too short. Stay safe boys.

@gavincoleman7172

2 жыл бұрын

About to start doing just this as a 44 y/o cleanskin, wish me luck

@imanenigma3348

2 жыл бұрын

@@gavincoleman7172Keep your wits about you, put in and save your dosh. You will earn it. Best of luck mate, stay safe.

@fidelmontollaiii7866

Жыл бұрын

underground pit ? wtf ?

@imanenigma3348

Жыл бұрын

@@fidelmontollaiii7866 Sorry mate, I'm Australian. Pit = Mine Here we use both terms A person might work in an underground or open cut pit or an underground or open cut mine. I think the term comes from the Brits(British) Hope this helps👍

@fidelmontollaiii7866

Жыл бұрын

@@imanenigma3348 , oh I understand you now. CHEERS !

I like heavy equipment. The operator is a very good skill. Very good engine sound. Thank you from Japan.

@663rainmaker

4 жыл бұрын

sitatan gotta love ❤️ our workmanship and our economic growth

@Agustin_18.09

3 жыл бұрын

Greetings from Argentina 🇦🇷🎌💜

Odd how you don’t see women complaining about how they are so underrepresented in mining and how something needs to be done about it.

@vexcarius7100

Жыл бұрын

Lol

@skyes7369

Жыл бұрын

There are plenty of women in mining here in Australia & there have been many campaigns to attract more to the field. It worked too.

@josebravo6799

11 ай бұрын

6m}p77 ❤❤😅😮😢😢😢😢

@ANDRESMOTTA-dk3kn

10 ай бұрын

​@@skyes7369what is the percentual of women in these jobs there?

@andrewmichaelschaefferXIV

5 ай бұрын

West Virginia coal miner here Men outnumber women about 50:1 (Give or take)

Nicely done video. I am really surprised that with all those giant piles of coal, that they use loaders to load the train. Seems like a basic conveyor system could do it faster and with fewer operators, though I suppose that if they are loading it along the whole length of the train, it might be faster this way unless they used a silo system.

@Chrzysztof

2 жыл бұрын

"Long wall" system I saw in museum has it's own chain conveyer that move coal to nearest belt conveyer.

@Keith_Mikell

Жыл бұрын

On the long wall it uses its own conveyer. Trains are loaded with hoppers usually. The train pulls under it and it gets loaded with washed or unwashed coal.

@ke6gwf

Жыл бұрын

@@Keith_Mikell I don't know why everyone keeps saying this, because if you watch the first 30 seconds of the video you see no hoppers or silos, you see wheel loaders loading trucks from stockpile, and multiple loaders loading train cars from a larger stockpile. My comment was wondering why they DON'T have hoppers to load the railroad cars from, and the comments are about the long wall miner far below, and that they use hoppers, which they obviously don't lol

@Keith_Mikell

Жыл бұрын

@@ke6gwf ah my mistake. I’d Wonder the same.

Thanks to showing. Good job

I believe Peabody bought the Shoal Creek Mine here in Alabama , wasn't in that mine but I did work in Jim Walter, Oak Grove, Alliance, Jessie Creek and another mine or two as battery tech for Enersys. I repaired scoop and shuttle car batteries and chargers. I liked my work and I liked the type of people I worked with , you could count on them all to watch your back .

@thomaswright8866

3 жыл бұрын

I machine all J&R DC connectors

Wow, it's so similar to the canadian mine I ran a shuttle car in. What an experience that was

Awesome video

Props to the men and women working in coal mines. Such A dangerous job. I'll I'm thinking while watching this...black lung disease and cave ins. Really hard working people.

@Senkino5o

4 жыл бұрын

No women in underground mining bud. Hopefully the smart-alecs at HR don't start that fad.

@Danuxsy

4 жыл бұрын

women? I doubt there is even a single woman working in mines.

@markbias1149

4 жыл бұрын

XIAO we have women working underground and on surface jobs in WV.

@marclaky384

4 жыл бұрын

A couple babies on here insecure about their pecker size. If a women wants to work side by side doing a shitty job and can hang, why are you scared? Afraid they will make you look bad? I'm a welder and one of the best welders I have ever met was a women.

@thomaswright8866

3 жыл бұрын

@@Senkino5o wrong they are there! I know a woman fed mine inspector

Love the longwall shear, very cool stuff!

The best coal mine video ever, thanks!

Very interesting. I had no idea what it might look like. Thx.

Nice videos about longwal mine with subtitles

Thank 4 the memorys from the 🇬🇧

Great video. Well made.

It would be good to have all of the video ,the audio in the mine is a big part of it ,no offence Intended and i thank you for the video ,,,it's just someting to consider,, i reemphasize Appreciation for your time and effort,,, ,,thanks

love how begining of "developement miner and shuttle car" scene starts with guy walking along scratching his junk. LOL

@skyes7369

Жыл бұрын

They are coal miners...scratching of junk is one of their pre set movements.

like another planet

Professional development

very interesting - it could have been double the length and still held my full attention - Good Work M&EU!

@MININGANDENERGYUNION

10 ай бұрын

Glad you enjoyed it!

located in nsw 'stralya. tough gig. i wouldn't survive one day.

And there’s not a damn feminist there! Is it with these guys that flashy feminists want to get the same paycheck? Let them then work like men!

@marclaky384

4 жыл бұрын

Shadap stupid

@salmanyare2103

4 жыл бұрын

Евгений Ш only those badass with big balls can stay there

1 - even though the electricity cable for the machines remind me of automatic retractable vacuum cleaner cords, it amazes me still how they don't run over their own power cables. Plus the constant flexing, unwinding and retracting of the power cables surely wear the out over time causing kinks and breaks in the line. 2 - even though I KNOW it a mine, it made me a little fascinated that the machines were back coal dust dirty. I 'expected' them to be pristine white and clean. Guess I didn't expect this workplace to be dirty from being used.

@skyes7369

Жыл бұрын

I work for a company that builds them. They look so beautiful when they leave the workshop...then they go underground & when they come home for a major overhaul they look so sad.

@kriscostello1786

9 ай бұрын

Don't worry, those cables don't last long 😅

Waww ... great video 👍👍

This video is EPIC!!!

nice prestation on the process of minerals material controller and hse representative

3:07 Why has a part on top of the shuttle car been blurred out in the video? It just looks like a short section of pipe.

@Meantoy

3 жыл бұрын

its alien tech

@philipm7054

Жыл бұрын

Thats where the magic happens

everything is well mechanisedi like it

Kind of like Bladerunner but with all that dust and grime

Wow.. i like it.

I worked on longwall chocks and as a diesel shuttle car operator in the late 70s and 80s. I thought electric shuttle cars were long gone. The technology doesn't look like it has changed much.

Cara agar ga merusak hutan diatasnya

God bless you all and your family, Ameen 🌹 look like matrik

Nice Mine #Mining #coalmining

More like a metallic mine than a coal mine. How can you stop the lateral pressure? or ceiling prints? I didn't see any steel fortifications and I think it's great because the risk seems low. I was also wondering about the calorie content and coal thickness. Greetings from Turkey

@skyes7369

Жыл бұрын

Metrop is most definitely a coal mine.

@MININGANDENERGYUNION

10 ай бұрын

Definitely a coal mine!

I worked here many years ago, and the best pit I've worked in

Why do you blur a part of the shuttle car ?

@Votsh64

5 жыл бұрын

I ask myself the same question. It looks like it's just a piece of plastic pipe, but it's mysterious.

@michaelovitch

5 жыл бұрын

Maybe an exhaust pipe ? while they are supposed to use electricity only to power the shuttle car ? For safety reason i don't know,that's weird.

@Votsh64

5 жыл бұрын

@@michaelovitch I found! This is a place for a fire extinguisher except that it is not present on this machine. Look at 3:58, the red cylinder on the left then look at 3:11, the tube is empty.

@michaelovitch

5 жыл бұрын

@@Votsh64 Good catch ! I knew it was safety related ! That mean they prefer to hide mistakes more than to correct them ,they are sneaky bastards.

2:26 How come the ceiling is so low? Does the coal come in thin layers and they have to dig right there to find it?

What is the plastic bags hanging at the discharge point?

@BikiniDuckCreations

5 жыл бұрын

Limestone/rock dust. In case of a fire or coal dust explosion it will disperse in the air and lessen the spread of the fire.

@davidjohnston7512

4 жыл бұрын

Ringinator They are called "bat bags" and they are part of the explosion suppression system of the mine.They are made of a brittle type of plastic that will break open easily in the event of an explosion and disperse the stone dust into the atmosphere.It is to stop a methane explosion from propagating into a coal dust explosion.The pressure wave from a methane explosion will cause coal dust from the ribs(sides) ,floor etc to be stirred up into the path of the flame front of the initial methane explosion and as coal dust is also explosive it will then ignite,stirring up more coal dust and the explosion with then be self propagating and will travel throughout the mine.The stone dust which is also applied to the coal ribs then intermingles with the coal dust creating an inert mixture and hopefully stops the explosion from propagating.

Great video

Excellent video

What's the purpose of the air mask if they don't cover the nose?

Very nice

Good video 👍🏻

Despite being deep underground is one of the noisiest places ive seen. Unberable, at least for my noise "sanity" standards.

Not in the mine but as a truck driver I have carted plenty of coal out of here to Illawarra Coke Works & Corrimal Coke Works .Most is loaded out on trains from here . Coal wash or reject is also what we carted out of there .

excellent video

Great.

6.26 - How long has that coal been laying down there waiting for someone to come along and hack it out with a long wall cutter?

When I was 17 , I started out in the coal mines digging ditch and then later packing timber up the raises . After 6 months in the mine you get a miners permit that allows you to go and work at the mining face . Another year doing this and you write a test for your A class miners papers and get to be an operator . I ran a Joy Continous . Lots of dust in the winter time - lots of timber when you drive a decline - building a road called corduroy so the miner does not get stuck .This was for a company called Coleman Collieries in the Crows Nest Pass in Alberta . When I was 21 - then changed to working in a hard rock mine.

@macaloamor6172

5 жыл бұрын

I want that job help me pls.

@destroyerarmor2846

Жыл бұрын

​@@macaloamor6172 don't do it😢

The background music is awesome, can anyone tell me what is the name of the music or track ?

@AB0VETHALAW

5 жыл бұрын

Tenacity by Mark Hoad/Richard Lacey

@worldingalaxy

5 жыл бұрын

@@AB0VETHALAW thanks, the music is really awesome, I can't resist myself to hear the full

3:08 Someone went to a lot of effort to conceal the cylindrical on top of the shuttle. What was it?

@bob119911

3 жыл бұрын

weird

@peterwilks531

3 жыл бұрын

Fire extinguisher shroud. Looks like it was missing, ohs..

@bradporter482

Ай бұрын

@@peterwilks531 correct. Shuttle car had only just gone into the panel that day. Oddly the day the film crew arrived. 103's people- didnt do our 103's did we

i started mining at a mine called APPIN, close to this mine.... i worked in mines for 38 years and retired 2 x years ago..... do i miss it.... NO, stay safe fellas

Nice)

كل الاحترام لرجالة المقاومه

Gas Drainage/Gas Range, what is that all about?

@michaelcorbevski1374

2 жыл бұрын

They drain the methane and co2 out of the seam to prevent outbursts while cutting coal, an outburst could push one of those 5 tonne machines 10 meters back. It’s very dangerous so it must be done. Also so the methane doesn’t cause an explosion , that’s another hazard.

Imagine living in that locality and drilling a borewell for water!!! 😂😂😂

@randomoldguy3967

4 жыл бұрын

J J imagine living in eastern KY or West Virginia where they take the tops off of whole mountains and dump the overburden in the valleys, covering up streams and killing everything downstream from the runoff. Also imagine the hideous mess that’s left when they leave. Now that the coal industry is all but gone, imagine whole communities left with nothing but destroyed landscapes, undrinkable water, no jobs, and no opportunity.

At 3:48what are the little bags of white powder hanging from the ceiling? And yes I’m aware it’s not cocaine .

@michaelcorbevski1374

2 жыл бұрын

They are called bat bags, filled with stone dust in case of methane explosion the shock wave will bust the bags open and prevent coal dust from being flicked up and causing another explosion.

@skyes7369

Жыл бұрын

Work would be a lot more interesting if the bat bags were cocaine...

A empty one like this perfect for Hydro Grapes Ect.

LONGWALL 1.2

Great video mind you if the Green Party as there way there will be no more mining ⛏

Impressionado.

@tonysilva6067

4 жыл бұрын

melhor disso e que eles ganhao $60 a horas.. quais $5000 por semana

Man, this GTFO prequel footage is just too real! Lol!

How much coal is down there ? How many years worth remain ?

@lydiaanderson2870

3 жыл бұрын

@Hello stnicholas54, How are you doing?

@stnicholas54

3 жыл бұрын

@@lydiaanderson2870 Doing quite well, thank you.

Super

Hello, the core drilling you guys do, is it for de-gas? how that works? Thank you.

@seanbrophy9096

3 жыл бұрын

It is used to drain gas from within the seam prior to mining. Preventing outbursts from CO2 or potential ignition of methane.

Each time i see it i want to go back to be a miner!!!! Give me a job!!!!

No filtered mask for dust?

@user-ue6mr3uw9o

4 жыл бұрын

6:44

What will be the consequences of making hole under the ground

good video, I have a question: What is the function of the bags that hang from the ceiling at minute: 3:48?

@diydirtbike4625

5 жыл бұрын

1.21Gw probly bags full of stone dust to hopefully stop a coal dust explosion from continuing...

@bruces3284

5 жыл бұрын

stone dust. Ifs theres an explosion they burst and makes the coal dust inert

@rustybogans2508

4 жыл бұрын

Called bat bags in qld.

Is this economical?

@user-ue6mr3uw9o

4 жыл бұрын

Yes. Coal is needed for the metallurgical industry. I really need it. For smelting cast iron and steel.

Being a mother is the most difficult job in the world

Australian coal mining above and underground is the safest best regulated in the world. Retired now but spent last 15 yrs delivering parts for Joy Global now Komatsu to Glencore long wall pits. Heaps of girls working in mines but mainly above ground.

@roblachman8919

4 жыл бұрын

Love reading comments from Greta,s bum buddies. Thankfully the real world marches forward while they try to destroy it.

รังจาก้า

You don't see no women down on these jobs go figure huh.

@D1cko888

5 жыл бұрын

Dave Osborn the pay’s too good. They’d rather sit in an office and bitch about the “pay gap”.

@doxielain2231

5 жыл бұрын

@@D1cko888 bullshit. ah sexism, stay classy

@hardlydavidson1937

5 жыл бұрын

If you do see women there then all the trouble starts. Keep the bitchs out. Next you see you work mates getting laid off as the bitch has said he heard my feelings. What's the old saying how can you trust someone who bleeds 5 to 7 days and doesn't die. I will leave you with that to think about.

@user-ue6mr3uw9o

4 жыл бұрын

@@doxielain2231 And there’s not a damn feminist there! Is it with these guys that flashy feminists want to get the same paycheck? Let them then work like men!

The first picture of the intake vent shaft is wrong thats the return air mines do not force ventilation down the mine its pulled thru the mine by means of exhaust fans

@rustybogans2508

4 жыл бұрын

It’s still intake if it enters the mine at that point genius while the vent fan sucks from another location

@jacquesnortier2293

4 жыл бұрын

@@rustybogans2508 listen genius there is no intake air at the fan you dumb twat ... thats all used air

@rustybogans2508

4 жыл бұрын

The first picture was the exhaust fan dickhead the picture that said intake was where the air enters the mine 2 different shafts

@rustybogans2508

4 жыл бұрын

The air just doesn’t get pulled from underground you need it to enter through another vent shaft for the vent fan to pull air through the mine. No drifts at that mine

@jasonrotenberry2359

3 жыл бұрын

Not true anyway. Most are exhausting but Ive worked some that pushed it in. The first time was middle of winter on a new panel 12 breaks from the drift mouth. Insulated clothes were a must and shuttle car guys wore goggles to keep the dust out of tbeir eyes when they turned into the last open break. Talk about miserable.

25m to 67m every 12 hr shift. Lot of deputy's In this video (blue caps).

@NRG450

4 жыл бұрын

Blue caps mean they can work alone.

What is the purpose of meshing the ceiling? It doesn't seem like it wouldn't hold up any significant weight in the case of a cave-in, but I'm totally ignorant in this regard. Can anyone enlighten me?

@skandinavianskate

3 жыл бұрын

From rock explotions. You can even see in alot of the footage that the mesh holds considerable amount of rock.

@seanbrophy9096

3 жыл бұрын

There is a bit to it, but basically the mesh and bolts create a "beam" and supports the immediate roof. The "ribs" (walls) support the roof in an arc, think like a tunnel, so it's like placing a beam on top.

One day the Ocean is gonna surprise them!!!

@josephastier7421

4 жыл бұрын

It won't be a surprise.

cool always wanted to show the wife gas drainage cool

looks to me like the miners get the Shaft

wow

Are those bags hanging from ceiling around 3.5 minutes for fire suppression?

@nickvandiver6501

5 жыл бұрын

It’s rock dust if there was a fire it’d melt the bags and rock dust would put the fire out

@adnes12

5 жыл бұрын

@@nickvandiver6501 close but not quite, the pressure wave from an explosion would shake the bags and release limestone/rock dust which prevents coal dust from igniting. so it doesn't put out a fire it just stops an explosion from spreading.

@seanbrophy9096

3 жыл бұрын

@@adnes12 very close, not limestone tho, calcium carbonate.

Mantap repat .sesuai basis mo .