Briquetting Tests of Lignite at Pittsburg, Pa., 1908-9 with a Chapter on Sulphite-Pitch Binder Volume 10-14
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: ...tests H88, H89, and H90. Each pound of raw lignite evaporated 2.82 pounds of water from and at 212 F., and each pound of briquets evaporated 3.23 pounds. The briquets resisted weathering well; samples showed little change after exposure for several months to autumn and winter weather (see Pis. VI to XI). TESTS ON THE LADLEY PRESS. The briquetting section had an opportunity to make tests of this lignite with the Ladley briquetting press of the Indianapolis Pressed Fuel Co., Indianapolis, Ind. The press is of the rotary plunger type and has two rows of molds, 108 molds in each row, arranged in the heavy rim of a wheel. The machine exerts a pressure of 5,000 to G,000 pounds per square inch. The construction of the press is shown by the views in Plate VI. The lignite was dried in the Schulz drier at the Pittsburg plant until it contained 6.79 per cent moisture and was then shipped to Indianapolis. The tests were made as follows: Enough of the dried material to make two or three briquets was heated in an iron pail. One mold was filled as full as possible by hand; the material was then packed in B. SIDE VIEW. 1, One of the 108 rams; 2 and 4, shafts of mold-filling device; 3, feed box; 5, belt conveyor to return superfluous dust to feed box; 6, 7, 8, tamping wheels to fill molds under pressure; 9, link or anvil-blocks belt closing outer end of molds to permit application of pressure by rams; travels tangentially to mold wheel during part of revolution; 10, cams moving rams are behind frame at this point; 11, relief springs holding cams in place are attached to frame at this point; 12, point at which briquets are ejected frommolds;13, gear turn ingmoldwh eel. the mold with a round bar and a sledge hammer, and the mold was again filled and tamped....
- 189 x 246 x 1mm | 64g
- 13 Sep 2013
- United States
- black & white illustrations