Document qm2Bmeoq95DNkk3RLRNJMNj7k

Youngstown in Chicago 1 he Youngstown Sheet and Tube Company ranks sixth among the steel producers of the United States, with a production capacity of 5,520,000 tons of ingots per year and a well-diversified line of products. Organized in 1900, an important step in the development of the company was entry into the Chicago area in 1923 through the purchase of the plants of the Steel and Tube Company of America. These plants, now known as the Chicago District of the parent company, have !>cen expanded and modernized, and today present a completely in tegrated operation located near important markets and with easy access by rail and water to raw material supplies. Annual capacities are now set at 2,676,000 tons of open hearth steel ingots, 1,976,600 tons of iron, and 1,538,500 tons of coke. Five Elliott centrifugal compressors now serve the three batteries of Koppers by-product coke ovens at the Indiana Harbor plant. This line, illustrated, will soon be augmented by two more Elliott units, which will serve a new battery of 75 coke ovens, now under construction. Coal is now coked in three batteries of ovens. One battery contains 75 ovens and the other two batteries each have 60 ovens of horizontal flue de sign, taking a 15-ton coal charge. The larger unit takes an 18-ton coal charge. All ovens are under fired with coke-oven gas, consuming about 44 per cent of the total gas make. Under normal oper ations, the large battery operates on an I8-hr cok ing time and cokes 1800 tons of coal per day, 100 ovens l>cing pushed each day. The two smaller batteries usually work on a 17JA-hr coking time and combine to push 165 ovens and coke 2475 tons of coal per day. Surplus coke gas to the extent of 26,000,000 cu ft per day is boosted to 5 psi pressure and distributed to various furnaces in the steel plant. Straight coke- oven gas is used in the strip, sheet, and tin mills. Coke gas is also distributed through the steel plant, and when the supply is inadequate, an equivalent mixture of natural gas and air is added. New coke ovens were included in an expansion program started in 1950 and completed in 1954. The aljove information was taken from a lengthy article which was published in the September 1955 Iron and Sletl Engineer. / hr' 10/1 fieline short litre- i okr-uim gas exhausters and two gas boosten. 7 hr exhauster > ate rarh rated 2S, 150 e/ni ofgas, which is rowforwnl from minu\ 15-tn. water gage to >5 fug discharge frrssiirr. / her arc diiven by 712-hf. / )7fi-tfan, single-stage steam tinhincs. i he boosters ar> rath rated 27. lOO rfm, taking the gas at S-ui. water gage and discharging at 5 fsig. / hr turbines are rated 725 hf. -I.ifjtt rfirn. One more exhauster and one mure booster, now on order, will soon hr added to lht\ line. Hottom fielute is the Elliott d* a>rating feedwater heater serving the fiower fdant. Rated fer hr, it consists uj a vertical deaerating heater mounted on a horizontal storage lank. .1 dufdieate unit is on order to lake care of cut rent exfansioit. f-gr-g.; POWEKFAX. SUMMER 195S 23