Bisbee daily review., 1914-02-22


 excuse the homely expression. At the Calumet & Arizona location the plant could be compactly placed and addi. tions could be located to the very best advantage. So that here the cal. cines can be handled red hot to the reverberatories, an important consid. eration.
 4WonderfuI Power Producers. {
 There are four reverberatory fur naces here each 19x100 feet. Only two of them are in operation. There is room for a fifth, which will be built at some time fin the near future Each furnace has two Stirling water tube boilers of 7l2 horsepower each. sol that now there are four boilers in commission and as many more idle. From the waste gases these four boil CTS are supplying all the steam the. entire plant needs. An accurately weighing and measuring weir closely records the consuming of water. evap- orations are also figured and the horse power correctly determined.
 Win Have Power 10 Spare.
 With a third reverberatory fired up there will be from 800 to 1000 horse power that can be applied to some other use than can be found at the shelter. There is talk on an electric al transmission line between Douglas and Bisbee. over which the current here generated could be sent to the company's mines at the latter place, where there already Is some electri- foation of hoists. etc Mir. w E. Me Kee, the progressive mechanical en- gineer. being strong for this work. With a fourth reverberatory under blast something like 1.400 electrical kilowatts could be transmitted to the mines. The spare power is sure ly going to be taken advantage of and will be highly important in reducing costs as against steam wherever ap- piled.
 These reverberatories are doing splendid work. The old plant did not have them and that was one of its re- cent weak features. Silicious ores are demanded here to a certain extent they being valuable for fettling and protects the Things Of the furnace. They are fed into the furnace through openings on the top and along the sides.
 The Blast Furnaces.
 There are two 40-foot by 4S-inch blast furnaces. very efficient. There is a continuous flow of slag from the we'll instead of the intermittent, as formerly. this being better practice.
 A Big Stack for Fumes.
 Accommodating this portion of the plant there Is an immense steel. brick-lined shaft having 25-foot bore and rising to a height of 305 feet. Through 1t modern Pullman train. big locomotive and all. could run and not touch anywhere. It can be. seen for a distance of many miles and the smoke from its top serves as land mark, or smoke-mark, for those who wander away and become lost. There is some sulphur going out of these shelter stacks the quantity varying according to the ores being treated and some day 1t may be the basis for a sulphuric acid plant at this loca- tion. It would be a valuable by-pro- duet. One ton of sulphur combined with oxygen and water makes three tons of sulphuric acid. which is the basis of all other inorganic acids and may be called the foundation of com mercial chemistry. as there is scarce ly branch of chemical manufacture that does not depend directly or indi- rectly upon it. It may be that in the treatment of the ores of the New Cor nelia company, of which Iron Ore had an extended account in its last issue. might need considerable quantity of the acid. Should the company dsclde to 20 into the manufacture 1t has plenty of room for the necessary plant Cooper as Covering for Dust Chambers
 When this new smelter for the Cal umet & Arizona company was planned a roof of copper sheeting was speci. fled for the dust chambers. This was decided to be the best material that could be employed for the purpose as all the experts" were confident 1t would be everlasting. With copper as cover there would no longer be any trouble with replacements of roofs for these dust chambers. It might cost little more. but it was better and cheaper in the long run, and be. sides 1t was an act loyal to the copper industry.
 few days ago while MT. Green. way and Mir. Harry Clark. superin- tendent of the smelter. were making round of inspection they thought they saw what looked like holes on the outlet of the chamber Investi. gating more closely they discovered there were holes there were holes teere and furthermore that the entire copper roof of the dust chamber, a space of 60x1S0 feet, had been eaten away badly. so much that the air from outside was pouring in. The entire roof was very thin and about ready to collapse. Immediate action was taken in supplying an iron roof. there being no stoppage of operations any where about the plant because of the damage.