By Allison Butts
This old e-book incorporates a finished treatise of metallurgy and customary difficulties that could come up in the perform. whole with distinctive details on metallurgic techniques and functional strategies to a couple of attainable difficulties and vagaries, it is a textual content that would be of substantial price to these with a major or expert curiosity in metallurgy and may make for a beneficial addition to collections of such literature. The chapters contained inside of contain: amounts and devices, The Chemical Equation, blend, Manufacture of Coke and manufacturer fuel, Thermochemistry and Thermophysics, The Iron Blast Furnace, the warmth stability, Calculation of fees for Smelting, Alloys, The Mass legislations and Chemical Equilibrium in Metallurgical Reactions, etcetera. Many old books corresponding to this are more and more high priced and difficult to return via, and it really is with this in brain that we're proud to republish this article.
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Additional info for Metallurgical Problems
Same, calculated by the direct volume method. volume of air actually used, at the conditions given. air used, in pounds. weight of volume and percentage composition of the products of combustion. weight of the products of combustion. 8 808 Ash The ashes from the furnace are 22C. and 751 mm. barometric 12 5 one-fourth unburned carbon. The outside air is 50 per cent more air is used than the pressure. theoretical requirement. Required: 1. The cubic feet of air (at standard conditions) theoretically required to burn 1 Ib.
2) the volume of 2 since there is one molecule of each. 2O twice the volume of 2 since there are two molecules of H 2 to one of H , , 2. 344 cu. m. good way to obtain the amount of nitrogen from the air is by subamount of oxygen from the amount of air. 15 kg. 688 cu m. " International Critical Composition of Air. 04 other gases (chiefly CO 2 ). 1 purposes it is permissible to count the argon and minor gases as The composition by weight is readily figured from the known nitrogen. 293 kg. for 1 cu.
T = 2200C. (2). Regenerative Furnaces and Wasteheat Boilers. When the flue gases leave a furnace at very high temperature, as in an open-hearth steel furnace or a reverberatory copper-smelting furnace, the heat contained in them would entail a huge loss were not means taken to recover a large part of it. One means of recovery is by allowing the hot flue gases FIG. 1. Diagram illustrating through a brick checkerwork flow of gaseous products of combustion in lay-out of open-hearth immediately after leaving the furnace plant: a, gases in furnace; 6, enterproper, causing the brick to heat up and ing regenerators; c, leaving regenerators to enter waste-heat boiler; thereby absorb a great deal of heat from d, entering stack.