Bisbee daily review., 1918-07-28
INTERESTING DESCRIPTION OF PROCESSES USED IN PASSING GAR OF ORE THROUGH, DEs- CREED BY WRITER IN VERDE DAILY COPPER NEWS.
T OL D IN D E T ALL
STARTING AT MINES, WRITER FOLLOWS ORE THROUGH VARI- oUs PROCESSES UNTIL IT EMERGES AS MATTE READY FOR MARKET, OR SLAG
CBv Il. J. Minhinnickl

Voicing from it's clangorous throats the great symphony of copper. the last word in the science of metallurgy and | the supremacy of Arizona and the Verde district in the production of the red metal, the magnificent new smelt- CT of the United Verde Extension Cop per company is in operation after many months of tireless effort on the part of its owners. its designers, its engineers and superintendents, and it's faithful corps of wOrkmen.
 My only task is to endeavor to trace the progress of a car of ore from the time it is hOisted at the mine until the finished matte is piled on the bullion platform for shipment to the refinery.
 Transportation From Mine
 Pending the completion of the great haulage tunnel, the ores from the mine are transferred to the shelter in thirty-ton Ingoldsby ore cars over the rails of the Clarkdale branch Of the Santa Fe, Prescott and Phoenix railroad, the cars, on arrival at the smelter, running on tracks immediate ly over the receiving bins, into which the ore is dumped and from which it is discharged into a 1500-ton bin placed below the others.
 From this bin it is carried on a huge belt cOnveyer to the crushing and sampling plant where the usual samp- ling of the ore is done, the samples being sent for assay to the assay of- flee, which is one of the most com plete in the southwest and fitted with every appliance for the most accurate determinations.
 Crushing Plant
 The crushing plant is equipped with a No. & gvratory and 4S-inch Simonds vertical disc crusher. From these ma chimes the ore is sent on conveyor belts to the bedding bins.
 The ere for the blast furnace is crushed to three and one-half inches in size and that for the reverberatory furnaces to approximately three eighths of an inch.
 To Blast Furnace
 Taking first. the oxide ores which are treated by the blast furnace. the coarse ore is taken from the coarse bedding bins by belt conveyors dis charging by tripDers into hoppers or bins above the blast furnace charge flcOr. Other bins contain the neces- sary Aux and coke and the charge car which is stationed on platform scales, is filled from the several bins contain ing the necessary materials for the charge-ore. coke, and fluXing mater ial
 The charging apparatus is arranged to secure the very maximum of ac- curacy in assembling the furnace charge and it is claimed that it will be possible to regulate each charge with the most absolute accuracy-tO a sin gle pound of each ingredient.
 The charge car discharges directly into the blast furnace which is of the most up-to-the-minute design but which in it's broader aspects. presents no great differences from the patterns of furnace in operation at the Calumet & Arizona and other modern plants in the west.
 To converters
 After being reduced in the blast furnace. the ore is tapped into a matte ladle and taken by forty-ton Morgan fEdIlt AO Olt Ol Aut NIItt fbINtl Ati o for final qualification and reduction in- to commercial matte.
 The blast furnace has a capacity of from 800 to 500 tons per day
 The slag is tapped off in the usual way into slag cars which are hauled by electric locomotives to the slag dump.
 Sulphide Ores
 The finely crushed sulphide ores are taken from the fine storage beds by conveyor belts to series of hOppers located above the Wedge roasters To- cated in the roasting plant. where the ore is calcined in the usual manner.
 The fumes from the roasting plant pass through a dust chamber to the great stack as do also the fumes from the blast furnace.
 To Reverberatories
 The calcines are taken in hopper cars 10 bins which serve the reverberatory furnaces. being removed from the bins by a drag conveyOr fur