File:Annual report (1919) (14762820632).jpg

Identifier: annualreport191901onta (find matches)
Title: Annual report
Year: 1891 (1890s)
Authors: Ontario. Dept. of Mines
Subjects: Mines and mineral resources
Publisher: Toronto
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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wer-house boiler room contains four Babcock & Wilcox standard water-tubiboilers, each n\ 1319 sq. ft. heating surface, set in two batteries. These boilers are built for a. working pressure of Ki<) lbs. per sq. in., each being lifted with B. & W. superheater, which raises the temperature of the steam about 100°. B. & \V. chain-grate stokers are also afeature of t he equipment. Two B. & W. boilers of special design are installed for utilizing the waste heat from (he reveiberatory furnaces in the nickel refinery. These boilers are built for an output of about100 boiler horse-power each, and are of particular interest, as their design represents thelatest development in this phase of engineering, resulting from extensive investigations bythe Babcock & Wilcox Company. Coal is received from the cars in a track hopper, crushed in a Jeffrey crushing roll.elevated, and conveyed overhead to a suspended bunker, from which it is fed as required to 1919 Mines of Ontario 181
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182 Bureau of Mines No. 4 the stokers. The ashes are removed from the ash pits by ash cars running in an undergroundtunnel to the elevator and ash-storage bin, from which they are dumped into cars for removal.One 6 x 175-ft. reinforced concrete chimney conveys the products of combustion from theboilers in the power house. The waste-heat boilers are Berved by two 5 x 100-ft. reinforced-concrete chimneys. Two Bidgway-Eateau high-pressure turbines furnish power for the direct-connected d.c.generators, each of 1,000-kw. capacity. These turbines operate under 150-lbs. initial steampi-essure and 28-in. vacuum and run at 1,700 r.p.m. The power house also contains two otherturbo-driven high-pressure Mowers, which supply air for the converters. Like the turbo-generators, these units are of Bidgway-Eateau make. The turbo-blowers are each of 15,000-CU. ft. capacity, and deliver air at 15-lbs. pressure. They are connected in high-pressure con-densing turbines operating at 8,500 r.p.m. and were de

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