and engineering journal . his method has sincebeen improved and modified by other inventors. .However, the general principles on which they haveworked will suffice in my present article. When a current of air and steam is blown over incan-descent coke, the steam is decomposed, and the oxygen outof the air, together with the oxygen from the steam, com-bines with the carbon in the coke, simultaneously liberatinghydrogen from the steam and nitrogen from the air. Steam + Carbon = Carbon Monoxide + + Carbon = Carbon Monoxide + Nitrogen. Under certain conditions we find a cert
and engineering journal . his method has sincebeen improved and modified by other inventors. .However, the general principles on which they haveworked will suffice in my present article. When a current of air and steam is blown over incan-descent coke, the steam is decomposed, and the oxygen outof the air, together with the oxygen from the steam, com-bines with the carbon in the coke, simultaneously liberatinghydrogen from the steam and nitrogen from the air. Steam + Carbon = Carbon Monoxide + + Carbon = Carbon Monoxide + Nitrogen. Under certain conditions we find a certain quantity ofCarbon-dioxide formed. As gaseous fuels, we have CarbonMonoxide and Hydrogen, which are approximately 40 percent, of the producer gas, the remainder being Nitrogen andCarbon-dioxide, which are not fuels. This is the gas whichtogether with air is admitted into the furnace, each havingseparate ports, the gas ports being lower than the air ports. Diagram showing General Construction and Method ofTapping Metal. <1 B#S. (1) Charging Door. (2) Gas Ports. (3) Air Port.(4) Tapping Spout. The furnace itself is stationary and the method of tappingthe metal out of the furnace has very often been a puzzle totlie non-technical man. The diagram will fully explain thispoint and also give you a rough idea of the general furnaceconstruction. Pig iron, scrap and iron ore are the materialsused as base for this steel, and the pig and scrap are chargedinto the furnace first. As soon as this charging is finished,the charging doors are closed and the gas and air turned charge soon melts and a slag is formed by the oxide ofiron combining with the silica of the sand which is alwaysfound adhering to the pig iron, also perhaps with part of thesilica from the furnace lining. Five or six hours from the time of charging the materialwill be in the molten condition, and we now commence add-ing the iron ore, in small quantities and at short intervals,the whole charge being thoroughly m
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectmineralindustries
