|
|
Post by dazbt on Jul 3, 2013 15:35:55 GMT -5
|
|
|
|
Post by John on Jul 3, 2013 16:51:24 GMT -5
Caterpillar perfected a manless face a while back, it was a plough face, but operated by one man at a central control point. They are supposed to being pretty close to perfecting a shearer face if not already to be manless..
I think the sticking point is software, seems they have got it to where the shearer can cut automatically and can scan the roof and floor accurately to leave a level face.
Pity the NCB gave up on it completely...
|
|
|
|
Post by tygwyn on Jul 3, 2013 19:25:59 GMT -5
Producing 10 million ton,equivalent to 50 to 100 operatives?
|
|
|
|
Post by John on Jul 4, 2013 7:10:20 GMT -5
Using one man instead of the 50 to 600 presently employed Jim, I fail to see those figures can be accurate, as all they will replace are the face teams,if it's a shearer face, two shearer drivers, one man pushing over, one man advancing roof supports, one man on the main gate switch, one spare man... On a Plough face, two advancing supports and one pushing over, plus main gate switch man.
Even an auto face will require a safety official, using most countries rules, an elec and a fitter, no point in having that amount of money invested if the fitter and electrician are half an hour or more traveling time from the face.
Then there are outbye workers, development teams, belt cleaners, stone dusting teams, presuming the Chinese actually keep the belts clean and dust with stonedust??
Maintenance personnel, supplies etc....
|
|
|
|
Post by tygwyn on Jul 4, 2013 16:58:33 GMT -5
I understand the principal of mechanization,John,but the statement 10 million ton,equivalent of 50 to 100 operatives is pushing it a bit far,
Even them Collieries in OZ with them big seams,surely needed more than 100 men to mine 10 million tons?
|
|
|
|
Post by John on Jul 4, 2013 18:02:37 GMT -5
I understand the principal of mechanization,John,but the statement 10 million ton,equivalent of 50 to 100 operatives is pushing it a bit far, Even them Collieries in OZ with them big seams,surely needed more than 100 men to mine 10 million tons?
It's all hot air Jim, Communists have always exaggerated to make their system look better than the free market system.
Although, just take a look at the major accidents they have, point to cutting corners big time, no surveyors, no stonedusting, so who's to argue whether that one man is a one man band....Beltman/elec/fitter/Deputy....LOL |
|
|
|
Post by dazbt on Jul 5, 2013 4:00:36 GMT -5
Having witnessed the Chinese ability to manipulate coal mine related facts and figures first hand I'm fairly sure that there would be some air behind that statement, though whether it be hot, warm or tepid is anyone's guess. What I wouldn't do though, is rule it out as being massively ficticious and beyond the imagination. It should not be forgotten that China have been Longwall working massive coal seams successfully for a long time now, so much so that the Australians have learnt from the Chinese and actually paid for their 'top coal cave in' expert technology and equipment. So with just a tiny pinch of salt, I can imagine that the figures quoted aren't necessarily a mile out;
3 Longwall faces
6 men per face
3 shift / day / 6 days / week / 45 weeks / year
6 metre extraction LTCC
7 tonne per metre
300 metre face length
2 or more cuts per shift
On the other hand I might have my numbers completely wrong, I usually have.
|
|
rac
Shotfirer.
Posts: 87
|
Post by rac on Jul 5, 2013 15:40:25 GMT -5
dont they realise they are killing the planet burning all these fossil fuels. do they care do they hell!! do they believe all the hype about green power/co2 emmisions-obviously not thats why they have prospered as they have in the last 25yrs on the back of coal and us the uk?  ? wind power is the way forward-CRAP!! |
|
|
|
Post by dazbt on Jul 6, 2013 4:26:03 GMT -5
For what it’s worth, I believe that China as a whole and more importantly the individuals that live there, recognise better most other ‘concerned countries' the way in which all types of man-made pollution is damaging their own country and the effect they themselves have on the rest of the world and, I believe that they do care. I wouldn’t argue against the fact that China as a country are the world’s greatest polluter, but in fairness taken per capita each Chinese person is “accountable” for only a fraction of the Co2 allocated to each and every Australian, American and European citizen ………….. which, is perhaps a more personal way of looking at the problem when speaking about responsibility, awareness and care or concern of individuals towards their collective “Carbon Footprints”.
|
|
? wind power is the way forward-CRAP!!