Show FORD MAKES NEW SAVING SAVIN Cement Being eing Produced From Blast Furnace I Slag I Another big ble b Industrial eCOnOmY ha has been ben inaugurated by th the Ford Motor company at the River Ulver Rouge plant Detroit where cement Is nor no no I slag Ial being produced from blast furnace noI I 1 lh J he new e cement ment factor factory has Just JustI I begun operations Ith A a of 1000 barrels barrel a day It com corn completes another step In the tho th Ford ord Ce- Ce de development plan to io meet from the company own o at ast resources at allea let least t In part every one of ot Its It re requirements Ta- Ta The new product pro willbo will willbe be In future Ford construction construction tion work OF KIR Th The factory t itself Is a model J for forthe the tho Industry and Is the first to manufacture cement from blat blast bla furnace slag by the 11 et t process a process developed In tn keeping with the company's compans company policy of or the th ut- ut Utmost ut utmost most moot at all all all Its manu manu- units tho eliminating the th dust which prevails prevail at most places where cem cement nt Is made The blast furnace slag olag Is pump pump- pumped pumped ed ad to the factory through a 1300 foot pipe forming a a unIque fea- fea turo at th the outset o of th the cement making As Al the sl g blast furnace and runs off In a 1 molten stream It go goes to a vat vt here as It en enters ten It Is struck by bya bya bya a stream eream ot ater under high pros pros- pressure sure prea-sure sure The effect I ll that the th slag is 18 granulated to about the th sire lr ot of coarse eose saltWater salt saltWater Water and granulating gri slag are arc pumped to the tho th cement plant the th mixture being about 90 0 per cent water and anc 10 pel cent slag olliS lar A As the stream enters th the plant it IL pours pour Into containers on a con con- mo mOt lne Ing eleva elev- elevator eleva- eleva elevator tor which permits the slag lue to hewell ho howell howell well drained before It reaches th top bere belt ora carry It to storage iterate bins A feature of the belt con r rIs Is n a magnetic pull pulley y 0 oser o cr all the slag passes passe That contain contain- containIng containing contain Ing tin tiny particles of ot II lion on remains on the th or end and I If is carried to toa toa toa a separate bin later to be b sent Hent back to the blast furnace anti and reclaim reclaim- reclaimed reclaimed reclaimed ed The Th lias ellig contains contain about 1 per pcr percent percent cent Iron but this runs Into a 8 ale ale- File able able amount sine since tons tone of ot slag are ro cd dally daily at the thc factory L U ADDED From lorom the tho storage bins the sla slag i Is carried to the tho th net et grinding mill ml where hero It Is ts mixed and ground v r l h limestone 30 per cent of or the tho th mix mix- mixture mix mixture ture turo being belne atc atei J toro the mix mix- mixture mixture mixture ture Ica es lea ca the th mill It Is so fine Cine thai tho 90 0 per por cent will pass through a mesh me h screen or a 8 screen ereen bar hav havIn Ing openings to the tho square aquaro Inch From orom the tho th mill the mixture o kno knorn n then as a slurry and of th the thol consistency of cream crean Is forced by air pressure to th the storage tanks front from which It later late Is la carried to feeding tanks tanka th the 1 process being belog effected by air agitation In Instead In- In instead stead of oe using mechanical devices device The slurry pumped Into the tho In- In Inclined In Inclined dined rotating kiln Is quickly dried under heat ranging from 1 1060 1060 1 00 to degrees degree l It reaches the end of the lh foot KO kiln to clinker state and drops In- In Into into In Into to a cooler From Irom this It goes out out- outside out outside side for tor a seasoning period In the open and then comes comos J back for grinding to powder ponder form making a quality high cement practical for all purposes What t th the act et process does 9 atthe at atthe atthe the start In eliminating dust an elaborate system of or suction convey coneY con conveyors ev ors ore and dust collectors collector does In holding the tho dust to a n minimum in 10 inthe lath the tho final grinding atlon H S Tt hEAT T U LD Waste Watt heat from the dr do kiln running about 1000 degrees decrees d grees rah Is ts retained by Induced draft dratt and produces two thirds of otho the steam used for operating tho turbo generator of or tb the tho factory A laboratory unusually well equIpped and nith cry c e ery modern facility Is also Included In 10 th the plant The rhe Ford cement plant Is I a lal laigo gO Industry In Itself It I Is only ono one on ely ely unit In the gigantic activities Ille at River Rouge Houge Thor e are aro ar ten main build build- buildIngs buildings buildings ings In which the lh cement making processes are arc carried on IncludIng including Ing the tho th following Slag cru crusher her and granulated sIll slag building stone alone slon screening building raw building slurry Blurry stor- stor storage stor-ae stor age building slurry I la Is waSte wate heat power house coal dryer building coal grinding ling bull I finish grinding building cement storage buildings where here 00 barrels barrel can b be stored lored In tanks tanka Sf 30 I feet reet high hith and the th 03 g hoUse |