Show international SMELTING COMPANY 4 V w V S 0 4 ze r ok general view of international Sm smelling smelting elting plant from northwest SMELTING description OF L LEAD E A D AND A N D COPPER SMELTER AND CONCE concentrator or OF IN SMELTING COMPANY the tooele thoele plant of the international smelting smelling Sm elting company is situated at the mouth of pine canyon on the western slope of the oquirrh mountain five miles cast of tooele city and about 35 miles southwest of salt lake city the plant consists of a lead zinc flotation concentrator copper smelter and lead smelter the reduction plant site bite appears on railway maps as international the teri terminus ninus of the tooele valley railway which runs west through tooele thoele city to warner on the los angeles line of the union pacific system and line of the western also 0 o on a branch pacific railway standard gauge railroad tracks enter the plant on three levels tho the hith line or receiving tracks ore are on the concentrator a and nd a level below above the smelting smelling sm elting plants from the high line level a single track rises to I the he concentrator icen receiving pockets an and wa warehouses ro louses the middle track is used for transferring smelter products and ores from one department to another metals shipped from the ka e plant are handled on the lower trac tracks the plant treats lead lead zinc and dry silver ores and produces copper nand and blister copper lead bullion bullio zinc concentrates imal mainly lead zinc ores are received aror brorn M park city and bingham utah and from colorado nevada and idaho lead otes ores are received mainly from park pa rk city and bingham utah and from idaho and nevada CO copper per concentrates a r 0 received aly mainly from california and idaho and ores from tintic gintic and bingham utah ali A ore coke and fluxes handled with the exception of those ores received from the bingham district over the tramway together r w with ith oung outgoing products are shipped over the tooele valley railway TRAMWAY lead lead zinc and cop copper delaware Be er ores from om the mines of the utah delaware laware mining ing coin company pany and the utah metal and tunnel company in the bingham district are transported to the T obele tooele plant over an aerial tramway which passes over the oquirrh mountains at an altitude of 1450 feet above the loading station at the highland boy mine and descends 1800 feet to the terminal bins fit at the smelter intermediate ai Ine diate bins also allow diversion of any ore to the concer concentrator intrator the total ay t length of the tramway is four wiles the ore is carried I 1 in buck buckets eta of 1200 pounds capacity spaced feet apart traveling at a rate of about COO feet per minute upon arrival at the smelter the ore is dumped from the buckets into concentrator terminal I 1 bins of 2000 tons ions concentrator bins capacity or into the smelter terminal bins FromI these latter bins bina the ore is a drawn into special 50 60 ton motor dump cars weighed and delivered t to 0 the me smelter receiving bins SAMPLING MILL copper lead and had zinc ores re te alved from all sources are arc dumped into ito steel rice receiving iving bins bina of a total capacity of tons in the case of company cOrn pany ore are diverted to concentrator bins every fifth bucket is a allowed to proceed to tram terminal bint bins i for sampling ain vi purposes this is ia transferred by Y the e electric dump cars to the receiving ce iving bins bin A thaw sh shed having a capacity of 20 standard rail railway way cars allows cars of 1 I frozen oro ore to be thawed before lumping dumping their contents into the re clivine bins temperature The is is kept opt at t about abou t F in the shed the 8 sampling mill is a sl standard T tay aylor or and JB brunton runton mill built in two be sections each with a capacity of tons per hour the ore is conveyed 1 here from the receiving bins by con beyor belts crushed mixed and a representative portion automatically separated as a sample of the lot this sample is further reduced in size and fineness in the pulping department part ment the resulting sample of a few ounces is sent to the laboratory for analysis after sampling the ores are distributed tri buted by belt conveyors to copper plant bins lead plant bins of lead zinc plant plaint bins all in the smelter yards yard a from r i roni the lead zinc plant bins the various ores ore a are bedded onto a belt conveyor by means mean s of belt feeders and elevated into railway cars these cars are hauled to the concentrator and dumped into receiving pockets there concentrates do not pass through the sampling mill they are hand sampled and dumped into bins in whatever department depar trient they are to be treated LEAD ZINC FLOTATION concentrator from data of experimental and research years concentration work on the lead zinc silver ores of this district it was decided to suspend copper operations in the concentrator and remodel one tons per day unit to treat the characteristic te lead zinc ores on which the experimental work had been performed th this is remodeling was completed and 0 operations orations were started as a custom foad lead zinc zine concentrator on november 1 1924 with a capacity of tons per day the high lead market stimulated the production of these ores and an id it decided to increase the capacity was as consequently a second unit of f tons per pel lay day capacity was put in operation february 4 1925 which was increased to tons per day on may 1 1925 since which time th the e concentrator consists of two units each of which I 1 is handling tons per day of lead zinc ore the major portion of the material materi al treated comes from the park city districts the former received and binghom bineghr m by rail and the latter by aerial in addition to t the above considerable tramway tonnage is received ed from of the state and from different differ eni parts small states in relatively adjacent freight rates lots more afore favorable in considerable ore of are arc bringing which could not be eab economically thia character t I 1 moved prior to the develop n no 0 y of this his custom curium operation 0 pe ration the operation consists of briefly crushing and sampling the ore and to considerable extent bedding the different a described prior ores as above to the concentrator in order to sending ending feddas feed as to maintain as uniform ft n of ball standard practice possible and classification is followed mill grinding and then with different reagent additions series rec recovery every of the lead z zinc inc and iron is made in respective alone as flotation concentrates by well as a final or mill tailing which goes to waste is arranged in in the concentrator concentrate r and distinct sections two wo separate identical being the he grinding equipment in each but section no 1 is ia equip flotation callow pneumatic while section no 2 has mineral cells separation sub aeration machines the treated in the section or combination ores are arc it has which in sections of tion bifia is best been found the equipment metallurgical results adapted as regards the respect respective iv finished products from the two sections are corn com bained for de watering and disposal this feature the lead product As regards lead plant is sent to the tooele thoele to the great falls product the zinc arid and the iron zinc plant electrolytic to either the tooele thoele lead plant product as desired for fluxing g or copper plant the tailings from both purposes to are thickened sections fifty per cent solids a and nd pumped the overflow darns dams into impounding the water from or clear thic thickener chickene kene r is returned to a head in tank for generua mill use the only water 10 lost st in the this way in the respective that contained operation is 13 I 1 spec tive concentrates and the thick ened tailing the loss losa is ia made up with fresh spring water the general concentrator feed will average approximately six to eight per cent lead eight to ten per cent iron and ten to twelve POT per cent zinc from these heads a I 1 lead ead concentrate averaging sixty to sixty five per cent celt lead a zinc concentrate averaging fifty to fifty five per cent zinc and and iron concentrate averaging thir ty eight to forty per cent iron are made in this thia series treatment every effort is made to produce as high grade and clean products as possible and at atthe the same birne maintain good teco recoveries veries of the lead zinc and iron in their respective concentrates A very complete and extensive concentration cent ration testing laboratory is maintained for frequent checking of ore receipts testing of new ores for process amenability and for improving and working out of now new treatment processes for these same ores the laboratory is equipped with several types of small batch testing machines and in addition has a callow test mill and a mineral separation test mill each of one hundred pounds per hour capacity complete in every way and patter patterned ned identically after the concentrator continuous tests are made in this thia test mill trying out new processes new reagent combinations determining the effect of returning intermediate which cannot be done consistently on the regular batch testing machines this c concentrator is especially unique i in that it is treating a varying mixture of lead zinc ores from over fifteen different mines on strictly a custom basis and making a three mineral separation and concentration from them by flotation alone and by means mean s of the same treatment process these ores are of widely different analysis and general character as would be expected but their general tendency is to react very similarly to the process employed it is evident from this fact that such a plant provides a profitable outlet for tb the e mines of this district which have been limited heretofore in their output of ores of this character due to the often times prohibitive zinc penalty for smelting smelling sm elting ores this is a especially beneficial to the Mat relatively ively small producer who is not justified in putting up his own plant and at the same time secures profitable returns from his hia shipments to such a custom plant operating on a pay for zinc rather than a 14 penalty tyl ba basis 5 as LEAD SMELTER lead ores are from the sani sampling pling mill and are delivered to steel charge bins havin having bing a capacity of to tons ns these bins s are divided into two sections one of which contains the materials for making up the wintering sintering sint ering plant lant charge and the tha other the ores fluxes and sinter used in making up the blast furnace harge charge coke for the blast furnaces Is unloaded from cars standing upon an elevated trestle above a large concrete pit coke is withdrawn from this pit through chutes leading to a tunnel below on to a belt conveyor and is elevated to a cylinder ical steel coke bin of tons capacity SINTERING PLANT practically all of the fine material magerl a treated at the lead plant such as concentrates cen flue dust etc requires sin bering to ag agglomerate it before include ing it in the charge for the blast furnace rise the various materials for the charge for thi the sintering wintering sint ering plant are drawn from the bins by mechanical ch clial feeders adjusted to deliver the desired portion of each to a belt conveyor which discharges them to a mixing device from this they fall on of an inclined conveyor belt leading to the feed floor of the sintering wintering sint ering plant where the charge is distributed to the five f ive ton feed hopper above each machine there ore ara ten standard dwight lloyd sintering wintering sint ering machines inches the charge is mechanically spread a traveling grate in thick layer on n a the surface of the charge charleis char is I 1 ignited gaited under un ider an oil immer ignition b passing by brition is maintained by the contina cont inu ous oua drawing of nir air through the ignited bed by means of suction boxes co connected to a suction fan sulphur is is about 12 per cent in the charge and is roasted down to about 30 per cent in the sinter the material fuses slightly and forms a clinker like mass which is discharged at the end of the machine and falls into railroad cars these cars are hauled to the blast furnace bins and the sinter dumped therein to form part 6 of f the tha charge to the blast furnace each sinter machine has a 0 capacity of tons of feed por or 24 hours fuel used is gas oil of lout about 30 36 beaume the gases from the sintering wintering sint ering plant are passed through a cottrell precipitation plant where much of the dust they contain is deposited deposit hd the gases pass through a flue to a brick stock stack 18 feet in diameter and feet in height the cottrell lust dust is either returned to the sinter plant or sent to the arsenic plant dependent upon its arsenic content BLAST FURNACE PLANT this plant consists of five lead blast furnaces furnace 52 62 to inches at tho the line each furnace has 25 tuy ores eres the height from line to charge f loor floor is 24 feet 8 inches the capacity of each of these furnaces la Is about tons total charge per 24 hours tho the charge cars have hopper bottoms with hinged drop doors and are electrically operated they 1 licy are of the same length as the blast furnace the bins aro are fitted with suspended weighing hoppers the constituent materials of a charge are drawn into these hoppers weighed and dropped into the charge car while in motion thus bedding the charge in the car itself the car Is run over the furnace and the charge dropped dropped therein the gases from t the e blast f furnace are drawn off just below the charge floor and enter a dust catcher tangentially these catchers are 20 feet in diameter and 18 feet in height the gases are discharged from this catcher into a steel balloon flue feet long whence they are arc forced into the by a sirocco fan with a capacity of cubic feet per minute this brick contains 1440 cylinder ical cloth lags bags 18 inches in diameter and 30 feet in length the fumes from the gas Is shaken from the inside of the bags by reversal of the pressure on the aalf bag ba I 1 causing it to collapse the fume faffa into pits from which wh I 1 ch it I 1 is a T removed e in oved furnace as part of fresh charge the filtered gases from the bag house are discharged through a steel to the same stack black into which the sintering wintering sint ering plant gases are received slag and matte are tapped from the blast furnaces into large movable in which separation is made by gravity the matte is tapped from the settler into 3 ton pots and hauled to the converting plant the slag overflows from the fore heartha into a second settler and from that into a 7 ton slag pot in which it is ia taken to the slag dump lead is tapped from the blast fur nace into three and taken to the dr dross lne plant PLANT the dresing dross ing plant conta contains lins four cost cast iron kettles each having a capacity of 30 tons of lead they are coal fired the pots of lead received from tho the blast furnace are poured into these kettles the molten lead is is cooled and stirred by means of compressed pr a sed air which causes the impurities mainly copper to collect as a dross on the surface of the bath this dross is skimmed off pressed in a howard press to remove excess lead and returned to the blast furnace charge COPPER SMELTER all ores orea for the copper de department ent are crushed to uniform eize and ad stored in steel bins of 2000 tons capac capacity ity from these bins and the concentrate bins the orend ore and concentrates reaper dively are fed through ch chutes choates lates on to conveyor belts which elevate these materials to tho the feed floor of the roaster plant ROASTER PLANT tho the plant consists of thirty two evana Evans Klepetko mcdougall Dougall Ic roasting |