Bulletin the Mining and Metallurgical - 5 Angebote vergleichen

Von Händler/Antiquariat, BuySomeBooks [52360437], Las Vegas, NV, U.S.A.
This item is printed on demand. Paperback. 364 pages. Dimensions: 9.7in. x 7.4in. x 0.8in.This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 Excerpt: . . . 1 and the stock tank in which the slime was washed after agitation. The value of the solution in agitator No. 4 varied from 5 to 7 per ton, depending on the value of the ore, and was reduced approximately to 1 in the stock tank by the washings applied. These two thickeners being each 28 ft. in diameter have 4. 63 sq. ft. per ton of slime settled. The usual titration in agitator No. 1 was about 4. 5 KCN and 1. 6 CaO. During the cold months sufficient steam was used in agitators No. 1 and No. 2 so that at some time during the 24 hr. their temperature was between 85 and 90 F. , the steam being used in pipes in the uplift column. The specific gravity of the slime in the agitators averaged 1. 250 (2 tons solution to 1 ton of ore), consequently, averaging 26 lb. of dry ore per cubic foot. The available area for agitation, after deducting for the cone and to a depth of 2 ft. from the top, is 24, 440 cu. ft. in four tanks, giving a total dry weight of ore of 317. 2 tons. This gives each tank a capacity of nearly 80 tons and a total period of agitation of 57 hr. Oliver Filters Used The filtering installation consists of two 8-ft. and one 14-ft. Oliver niters, all 11 ft. 6 in. diameter. For considerable periods the two 8-ft. filters would handle the slime, but whenever a rush of talc occurred it was found necessary to use the third. Under the former conditions the filters handled 0. 23 ton, or 460 lb. , of ore per square foot of canvas per day with an 18-in. vacuum. This capacity could be greatly increased by thickening the slime and raising the vacuum. A dry vacuum is used and the solution removed from the receiver between the filters and the dry-vacuum pump by a small triplex pump. Table II gives the cost of filtering as follows: Labor 0, 079, supplies 0, 040, power 0, 0. . . This item ships from La Vergne,TN.

Lieferung aus: Vereinigte Staaten von Amerika, Usually ships in 1-2 business days.
Von Händler/Antiquariat, profnath.
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 Excerpt: ...1 and the stock tank in which the slime was washed after agitation. The value of the solution in agitator No. 4 varied from $5 to $7 per ton, depending on the value of the ore, and was reduced approximately to $1 in the stock tank by the washings applied. These two thickeners being each 28 ft. in diameter have 4.63 sq. ft. per ton of slime settled. The usual titration in agitator No. 1 was about 4.5 KCN and 1.6 CaO. During the cold months sufficient steam was used in agitators No. 1 and No. 2 so that at some time during the 24 hr. their temperature was between 85 and 90 F., the steam being used in pipes in the uplift column. The specific gravity of the slime in the agitators averaged 1.250 (2 tons solution to 1 ton of ore), consequently, averaging 26 lb. of dry ore per cubic foot. The available area for agitation, after deducting for the cone and to a depth of 2 ft. from the top, is 24,440 cu. ft. in four tanks, giving a total dry weight of ore of 317.2 tons. This gives each tank a capacity of nearly 80 tons and a total period of agitation of 57 hr. Oliver Filters Used The filtering installation consists of two 8-ft. and one 14-ft. Oliver niters, all 11 ft. 6 in. diameter. For considerable periods the two 8-ft. filters would handle the slime, but whenever a rush of talc occurred it was found necessary to use the third. Under the former conditions the filters handled 0.23 ton, or 460 lb., of ore per square foot of canvas per day with an 18-in. vacuum. This capacity could be greatly increased by thickening the slime and raising the vacuum. A dry vacuum is used and the solution removed from the receiver between the filters and the dry-vacuum pump by a small triplex pump. Table II gives the cost of filtering as follows: Labor $0,079, supplies $0,040, power $0,0... Paperback, Label: RareBooksClub.com, RareBooksClub.com, Produktgruppe: Book, Publiziert: 2012-05-09, Studio: RareBooksClub.com.

Lieferung aus: Vereinigte Staaten von Amerika, Usually ships in 24 hours.
Von Händler/Antiquariat, Amazon.com.
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 Excerpt: ...1 and the stock tank in which the slime was washed after agitation. The value of the solution in agitator No. 4 varied from $5 to $7 per ton, depending on the value of the ore, and was reduced approximately to $1 in the stock tank by the washings applied. These two thickeners being each 28 ft. in diameter have 4.63 sq. ft. per ton of slime settled. The usual titration in agitator No. 1 was about 4.5 KCN and 1.6 CaO. During the cold months sufficient steam was used in agitators No. 1 and No. 2 so that at some time during the 24 hr. their temperature was between 85 and 90 F., the steam being used in pipes in the uplift column. The specific gravity of the slime in the agitators averaged 1.250 (2 tons solution to 1 ton of ore), consequently, averaging 26 lb. of dry ore per cubic foot. The available area for agitation, after deducting for the cone and to a depth of 2 ft. from the top, is 24,440 cu. ft. in four tanks, giving a total dry weight of ore of 317.2 tons. This gives each tank a capacity of nearly 80 tons and a total period of agitation of 57 hr. Oliver Filters Used The filtering installation consists of two 8-ft. and one 14-ft. Oliver niters, all 11 ft. 6 in. diameter. For considerable periods the two 8-ft. filters would handle the slime, but whenever a rush of talc occurred it was found necessary to use the third. Under the former conditions the filters handled 0.23 ton, or 460 lb., of ore per square foot of canvas per day with an 18-in. vacuum. This capacity could be greatly increased by thickening the slime and raising the vacuum. A dry vacuum is used and the solution removed from the receiver between the filters and the dry-vacuum pump by a small triplex pump. Table II gives the cost of filtering as follows: Labor $0,079, supplies $0,040, power $0,0... Paperback, Label: RareBooksClub.com, RareBooksClub.com, Produktgruppe: Book, Publiziert: 2012-05-09, Studio: RareBooksClub.com.

Von Händler/Antiquariat, THE SAINT BOOKSTORE [51194787], Southport, United Kingdom.
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