. Transactions. Iron-Manganese Ore, showing Stratified Manganese Iron Ores, showing Banded Structure. The Harris System of Pumping by CompressedAir, as applied at the Deloro Mine. By J. ]R KiRKGAARD, Deloro, Ont. The raising of ivater from mine workings is often a serious problem,and always a heavy cost on mining, even under favourable conditions;this subject, therefore, is a matter deserving of serious consideration. At the Deloro Mines, Hastings County, Ontario, a shaft was beingsunk which had an inflow of water amounting from 400,000 to 500,000gallons per 24 hours. To deal with thi
. Transactions. Iron-Manganese Ore, showing Stratified Manganese Iron Ores, showing Banded Structure. The Harris System of Pumping by CompressedAir, as applied at the Deloro Mine. By J. ]R KiRKGAARD, Deloro, Ont. The raising of ivater from mine workings is often a serious problem,and always a heavy cost on mining, even under favourable conditions;this subject, therefore, is a matter deserving of serious consideration. At the Deloro Mines, Hastings County, Ontario, a shaft was beingsunk which had an inflow of water amounting from 400,000 to 500,000gallons per 24 hours. To deal with this amount of water by the thenexistant plant of direct-acting steam pumps was both slow and costly. The greater part of this water flowed into the mine through andalong the footwall, at the south end of the ore chute, and from thenceto the lower workings, where the shaft was to be sunk. The writer conceived the idea of impounding most of this water,making a permanent pumping station on the third level, and thus prac-tically leaving the lower workings dry. An o
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Keywords: ., book, bookcentury1800, booksubjectmineralindustries, bookyear1895
