How long is the coal face at Daw Mill

[mineruk]

Could someone tell me how long the coal face at Daw Mill is

[Wheldale]

The width I believe is 250m, recently at the National mining museum the guide said 300m, panel length not sure but I know that panels can be upto 3000m in length

[John]

Jan 2, 2013 14:35:23 GMT -5 Wheldale said:

The width I believe is 250m, recently at the National mining museum the guide said 300m, panel length not sure but I know that panels can be upto 3000m in length

I think you're getting a little mixed up, when we say panel, we mean a block of coal that is planned as a longwall, ie, drive the roads to the boundary both main and tail gates, say 300 metres apart for 4Km's, that's a panel.
Companies lay out panels on prospective underground maps.

Not sure how long the longest longwall is these days, but had to be at least 400 metres, maybe more, that's the length of the face not the panel. The length of a panel can be whatever the company wants to drive it, as far as I'm aware that's just to the licensed boundary, depending if there are old workings they may encounter, and of course any known geological problems like sandstone intrusions, faults or dykes.....

[Wheldale]

I might be a little mixed up. When I went to the National mining museum recently, the guide said at Daw Mill they had a face that was 300m in width. I know there have been faces at Selby and I believe Maltby too were the length of the face has been 3000m.

Now, is a panel a proposed face? IE once the gate roads have been driven etc does the panel then become a face? I always though (but I could be wrong) that a working face was called a panel. Mind you, I've never worked in a coal mine so I could be wrong and welcome any answers that will enlighten me on the correct terms for faces/panels.

[John]

Jan 2, 2013 18:05:10 GMT -5 Wheldale said:

I might be a little mixed up. When I went to the National mining museum recently, the guide said at Daw Mill they had a face that was 300m in width. I know there have been faces at Selby and I believe Maltby too were the length of the face has been 3000m.

Now, is a panel a proposed face? IE once the gate roads have been driven etc does the panel then become a face? I always though (but I could be wrong) that a working face was called a panel. Mind you, I've never worked in a coal mine so I could be wrong and welcome any answers that will enlighten me on the correct terms for faces/panels.

It's still a panel, but when you hear 1.5Km upwards. that's the block of coal to be removed by an installed face of say 300 metres. I don't recall the length of faces we were installing at Angus Place, but probably around 250 metres.