main haulage

main haulage

[′mān ′hȯl·ij]
(mining engineering)
The section of the haulage system which moves the coal from the secondary or intermediate haulage system to the shaft or mine opening.
References in periodicals archive ?
Tenders are invited for supply and installation of signaling arrangement in main haulage, 6md drift, 46l/6md haulage upto 77l/6md under churi colliery, nk area.
Portal 2400 was utilized as the main haulage drift for underground mining of the Ore body no.
Peter McInearney, 10 Millar Place Cowie, said about 2.15pm on the day of the accident he went into the crosscut road, off the main haulage route, to bring out full hutches.
Ore will be hauled from stopes to a series of ore passes that will connect to a main haulage level leading to a primary rock crusher near Shaft 2, from where it will be hoisted to the surface for processing.
The company has established a 166 feet development drift that will serve as the main haulage for future mining activities at the Mineral Hill Gold Mine.
These works have included:-- Installation of a larger hoist winder on the ROM Pad incline- Commissioning of four electric underground locomotives for ore haulage- Commencement of construction of the underground inclined shaft to access the 970 level from the main haulage level- Commencement of raises and sublevels in parts of the A and B ore bodies in preparation for stoping.Face channel sampling along the strike of the A Ore Body in sublevels above 1020 Level continues to return encouragingly high gold and silver grades.
The investment, the single largest in the company's history, covers the construction of a new main haulage level, which will mean that LKAB's iron ore mining and processing operations in Kiruna are ensured until 2030.
The excitement began in the summer of 1980 when miners Bill Penninger and Bob Stafford began to find pyromorphite off the main haulage level, in one of the back stopes of the Jersey vein.
Richie Gerrard, from Liverpool 12, who has loaned us the photo, says the carter involved was Joe Dodds, who was the main haulage contractor for John West.
"The expansion of the main haulage, level 695, required one or two raises for ventilation and to facilitate the activities of placing cement and laying rail.
Ore will be hauled from the stopes to a series of ore passes that will connect to the main haulage level to Shaft 2.
BHP said damage to the main haulage system at Olympic Dam meant ore was expected to be hoisted at about 25 per cent of capacity until full production resumes in the third quarter.