. American engineer and railroad journal . Fig. BELLEVILLE BOILER. Investigations have shown that this process is very perfectlycarried out, and that the heating surfaces remain clean ; eventhough sea water is used as a source of supply for wasteage,the heating surfaces show no signs of deposits, while in thepurifier a thick slimy deposit will be found. Vol. LXVIII, No. 12.] AND RAILROAD JOURNAL. 551 This method of handling the feed water with lime has alsobeen used in the working of the Lagrafel DAllest boilers,wherein 4 lbs. of lime was used each 24 hours per 1,000 I. H. P.;yet with t
. American engineer and railroad journal . Fig. BELLEVILLE BOILER. Investigations have shown that this process is very perfectlycarried out, and that the heating surfaces remain clean ; eventhough sea water is used as a source of supply for wasteage,the heating surfaces show no signs of deposits, while in thepurifier a thick slimy deposit will be found. Vol. LXVIII, No. 12.] AND RAILROAD JOURNAL. 551 This method of handling the feed water with lime has alsobeen used in the working of the Lagrafel DAllest boilers,wherein 4 lbs. of lime was used each 24 hours per 1,000 I. H. P.;yet with this boiler the separation from the feed-water beforecoming in contact with the heating surfaces was not success-ful, and the deposits were found chiefly at the lower portionof the back water leg, where the water is most quiescent. All the connections of the Belleville boilers are made withscrews. The tubes are screwed into the back heads and theconnection strengthened by check nuts lower down. Thefront heads have a slip joint, with thread
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
