Show NOTES ON LEAD SMELTING IN NEVADA AND UTAH V RIC to ii it II W F X 1 front froni at nor 2041 S I 1 no aimin Aira ii ft 0 a 11 higher production Won lial ire tro e ineita lure hire hern been recently rn midi ido in hasl blast furnaces forn acea by al terin g their shape and nil mare mod air h tin nn number of luy uyer erf p q T r ij the itic or nf a larger amount of air a moro morn perfect or of tho the fuel anil and hence a moro more rapid fusion is obtained ja in ro danl agno to tho ape awn two principles ime have come it irlo t ti I 1 TZ ahe lian ma alio hia furnaces a fcc tangular cross section te cllon and the form ol of an I 1 truncated pyramid with sides lie his hia tin nu tri yeres in tho the long jong sides s of tile alio furnace in in a manner that the currents of air air pass pam ay by iy each carl other oilier the ijo phenix furnice ro ko rel rela A 2 of A a official lis his farni cei have a a ni n i onal conal or circular 7 section and the ilie shape of an inverted truncated pyramid or co cone ifie numerous I 1 arc are placed I 1 a round the theburn furn aco P center n 0 omitting in i 1 I 1 ing tile breast only example ill hurl PIt emans furnace lurna cc little cottonwood utah cros and acty caa sl fernice binhlam canyon j burnac furna fur nac cp ailt k I 1 nev nett noth both prin prIni ailed pW may lie be I 1 deduced educed to no ono 0 general one a widening or if the furnace tow towards arla the iho t tr lop r it anil 1 1 41 1 1 I gre great at number of by th these e re circum Blanc eq a great a having IV in fuel and a larger reduction production have boon been attained the mechanical as well as ai chi chemical mical have also been beati natall notably decreased the air comes out anvil wilh less leb speed at the llie top dip and ami the ore rages at a lower point nf the furnace thereby giving the lead fumes fames a chance to condense again quite quilo e bently experience lias has taught that a combination of with the lite principle il the mot mo t advantage oua one one last spring two nevi new fur faces were ivere built at thi the works work of eureka eurala consolidated Consoli diled co coa in order to fo test tile the met its of oatlie the pila jila furnace ur Mr arenta Arents constructed onel one furnace in accordance with his bin own notions no tiona vii vi with elongated hearth 3 ft wido wide by 4 i ft deep and GJ B ft diameter at the top anil and provided with I 1 10 0 to tny yeres erca I 1 on each side aide and 2 in tile the kacl bial wall vid itri T other kotlier out one wu ao 1 iff 14 lt ll dicample r in the hearth ci ft at the top with willi 12 placed round the centre both bolli furna furnaces cei were 10 ft high from rom to feed hole liola and worked admirably 1 though it wall vw found that the altered pill ill worked front from 15 1 5 to 14 1 4 more ore under tile llie same circumstances than ihan tile llie original pliz lils although these experiments kiy not have been conclusive the government olt ciali at the mountains in prussia hive live been led to a construction similar to the ali one adopted liy by arenta their circular furnaces le ait 20 in wide and 11 ft doe L the hearth ard 1 5 ft diameter dinin it at the top and lave have 7 cayeres they are arc said raid to bo be superior to the original Ita chetto and furnaces tho the proportion of the hearth bearth area to the throat area can be acce accepted pLed as I 1 to 2 21 1 the bight or aalt ranges from 8 to 20 ft ahova tho the cecire of fit the tu yeres low furnaces art arl necessary for baic orcia e such il ar carry a great deal of oxide of iron white vine district to prevent the iho red reduction diction of metallic iron high fur far al arc of good service for refract nry ores i c e s g i or biarl ii arl yose rose ores Bing bain canyon and byerc a slag ihde ia desired lit in high furna furnace cisi a higher is ia attained with a less afe artio amount nf of fuel thin than in the ilic low lov ones olles but a low furnace iq i easier manipulated when de ranged than a hig high h anc onel where tile eliar charad acter cr of iho tao oret chans frequent ly it a low furnace li Is preferable the otan beight in this country il ii 10 ft above the of the tri yeres on the ti or of the burnice ig ail tit iron or better briel high and wide enough to 0 carry caffy off tho the fume ta alio I 1 e manner of chafing or feeding is i or of import anceal it allectus the lir work i ing g of a fur furnace natio I 1 furnaces frnaces of small dimensions generally have a iced feed hole ti a few inches above llie lie throat od oil that aid fedr nf af the furnace fur naco d di i reedy opposite the font wall the proper proportion of if fuel eidler by measurement or weight li is introduced lirt first and on lite top of that hat tile the ore w which I 1 lie i h may be all to vcr the area of the furnace leai ing ingan an empty s space dace only at elie fronk fron wall Ja jaclynn Jac lami cLann fc ikuo 1 I ill salt lille lake valley St stockton rockton ac more afore capa ciotti faro furnaces acco require 2 1 feed holes bich 0 aro O situated it at nearly right antics angles to tile tho bacat e in in the side eida walla eureka Ku relta C 0 oa 08 and utah S cot new furnaces theore the ore il ignot not spread over the area arc of nf the throat threat but charged round the tit 7 etc fralli le leaving eav ing a core of coal in like centre to ensure regularity in charging thi the throat of a furnace il ii frequently pro trilb idad with a fun funnel tiel the opining cop aing of wilc wil which C tan L he e kept closed liya hya iron box lot let down front ilia top lop while charin char charging in tit an won goon as it 6 y tinn time t to charge charice ae llie furnace this ilia box i ii raised b by y mean 1 I of a counte to feed over ir A and od tile the chargo charge drops docu town r efter triply in the funni funnel the icebox box is ia lowered e red again this arrangement at the hiruo tiuis protects iho lie workman from noxious noxious valo vapors cari where FF ni condensa con no denra ensa tion tira ard used llila box runs rung out ont into a pipe which ir i move moveably moveable able in tho the val furnace bet bei lt we will havo mccamon hereafter to A I 1 beak more fully about charging chargi og I 1 i tho the number of red and tho the mannet manner of alar placing ing them greally Wr in really eally not of 11 to great conot euenee as ai in A generally das aasum 1 I tiled cJ if the proper quantity of nil air H introduced into the hie furnaro and ail ili bided vided well in till the hearth ahr major ity cof shelters smelters sm elters in this country place ow aceres only six ii above the level 0 of ali the slag blag ipong and nl point theta downwards abin tends jw to tle hoit too fir far bel owl to latil izing much metal 1 placing lacing the th na inhere r a too high ii burs I 1 ilo 0 a alag fig holc 0 e hen tirel w wrongs ng alic tile furnace e lem carature is ia highest separation tp artion of alio llio lie roceal bactal f from r A at anil and slag takes W shirli aich separate to their spec specific ilic gravity below the the temperature decreases again now ir if we place 0 our ur tuy erel too high the molten diases will anil and even solidify at the lower points I 1 have seen a lIr furnace nace in white pine w where here the were three feet or more above the slag hole th thi consequence waa a couge of the fused inmei in ia he hearth and entire clo clogging i ing up of the furnace the fees st correct way ii M to place them hori horizontally iz itally and on the same level about ten inches the bias spout spoilt eureka cons cos co and phenix co a woo works all vertical dimensions tre are to be measured from abe center of the for every one and a half hair square foot of if area a of two rich inch iq ii calca lacca since llie lite introduction of ceet iron or ft rought rough iron tiron cooled by waitr the working wor kinc capacity of lead has ter I 1 tin greatly inc sl I 1 act iron and even c clay lay once were in in use me giving rit fine ri t to much inconvenience in order to protect the furnace nalle from tile influence of the reverberated heat beat the had to lie be provided with a nozzle 2 le of clay or a N cry acid slag alag pro fro tr iulo into the furnace put but to keep this nozzle of nr a certain length lengl li and to P it from growing or melting ot frit it had 1124 to lo be colan co lan y wa watched ly by end and c pei ec a luan I 1 during ing tile the list last century an attempt wai wag MR made d c oi on the mountains to increase the production ly by construct ing a large sized furnace with I 1 11 I 1 tu yeres it failed on account of this thia difficulty to keep the lite wa walls lie from burning out even the Ilas chette furnace built in on oil the hart wai wag provided with sheet iron but they hall hail to he be replaced so ao often which always necessitates a 1 I stoppage diat it was waa found expedient to try water vi vh all indeed gave ciaire the best ones in use in this country v ire are wrought iron ones of the keyes patent the Thelo lowest rint point of jhc thc iii a ft from orn M G to 10 40 inches below tile the centre of the like tu yeres the litter latter figure beins the maximum if made deeper t lie lead might get too cold ICon tinned |