Bisbee daily review., 1918-09-01

The plant as it stands today contains receiving bins having a total capacity of 10000 tons, a belt-conveying system for the same capacity per diem, a crushing. screening, and automatic sampling-plant of the most approved design, a bedding-yard operated on the Messiter-system, which first at- tracted well-deserved attention some ten years ago at Cananea, a great coke handling and storage department for 10000 tons, a battery of A Heres hoff roasting furnaces, an automatic in the feeding of ore, the discharging of calcine, and its conveyance to the reverberatories as such a plant can be; four 20 by 100-ft oil-fired rever- beratories, and two blast-furnaces of the Mathewson type, 40 it. long by it. wide at the tuyere-section also a converter department having six converter-stands, a McGregor skull breaker. casting machine, and the other accessories pertaining to a shelter The power-house, as is char acteristic of every plant upon which Dr. Ricketts lays his hand, is a model of efficiency, with no modern device omitted for ensuring the highest de gree of economy The steam is de rived entirely from the reverberatory waste-heat boilers, and as there is a surplus of power over that needed for the shelter: this is transmitted as high-tension current for use in. the mines at Warren. The power is de veloped with turbine alternating cur rent generators, taking steam at so lb pressure, superheated by 60'. These turbine engines generate 5000 kw. al so per cent power-factor. and 4SO volts ] Four No. 10 Connersville blowers eare also direct-connected to steam tur' pines developing 240 hp. each. These | furnish air for the blast-furnaces. In addition there are three Nordberg | blowers having capacity in free ail per minute respectively of 10000, 12, GOO, and 15.000 Gu. it. These supply | the converters. two turbines, three pumps, three IngersollRand compress ors, and some minor apparatus. The machine shop is adequate for all re pairs to a plant of this magnitude | Fuel oil coming by train from Cali fornia is pumped to five well protected storage tanks having a capacity of 10, 900 bbl. each. From these it is pump
 ed, according to proper methods o
 safety-supply. to a measuring tank fol
 general distribution throughout the
 works where needed. The water sup
 ply is abundant, the great Sulphur Springs valley being filled with des
 ert wash" that is saturated by thu precipitation from a large mountain
 ous watershed, so that two wells. 35' feet deep. suffice for the needs of thu
 entire plant. This water contains large amount of sodium carbonate il solution, so that it is excessivel.
 "sOft" and deposits no scale in thu boilers.
 The steel ore-bins. 24 in number, ar,
 37 feet high. and the. ore is delivere'
 to them in 5O-ton side-dump cars tha are drawn on a IF per cent grad
 from a spur of the Fl PasO & South
 western railway. The width of tn
 bins is 24 feet. and it will be seel from the plan that they are long an narrow, facilitating a side-discharg at the bottom. where the ore is dc , livered through arc-gates and fed b ? a travelling roiler-fed hopper car L either of the 90 in. conveyor belt.
 These carry their burden to a feed [ hopper placed between two 24 by in. Blake crushers set front to iron