ISBN: 9780217456920

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustra… Mehr…

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 edition. Excerpt: ...delivers the grass to a link chain elevator and conveyor, discharging it right into the filling door of the boiler. The bales of esparto, sixteen to eighteen in number, are arranged alongside the duster, the bands are removed, and the sheaves are fed into the hopper, where they are disintegrated by the spikes of the revolving drum being brought in contact with the spikes in the stationary bar. To dust and fill a 50-cwt. boiling of grass in this manner does not occupy a period of more than 40 minutes. Boiling.--There are many forms of grass boilers, but it is a recognised fact that the most suitable boiler for the treatment of esparto is one of the Sinclair system. These boilers use less soda, and boil the esparto more regularly and quickly than any other stationary boiler now in use. The circulation is all that can be desired. On the top there is a douche chamber, the full diameter of the boiler, and the circulation is effected by conductors riveted to the inside shell of the boiler; underneath there is the necessary false bottom for draining liquors and washing waters. Taking such a boiler as (Sinclair''s, the steam pressure generally used is from 40 to 5o Ibs., and the time in boiling varies from two to two and a half hours. In most esparto mills, lye made from recovered ash is used, making up the loss in recovery with 70 per cent. caustic, and, if profitable to make into lye, alkali (fK per cent.) is used. Mr. Beadle states in his answer 900 Ibs. (0(1 per cent.). I infer from this that the lye may be made from 70 per cent. caustic, but that the quantities are expressed in terms of 00 per cent. With Sinclair''s boiler very good results can be obtained by 13 per cent. of 70 per cent. caustic, or, say, on a boiling of 50 cwts.--735 Ibs., or,... Clayton Beadle, Books, History, Chapters On Papermaking Volume 2 Books>History This is an OCR edition without illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from GeneralBooksClub.com. You can also preview excerpts from the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Volume: 2; Original Published by: C. Lockwood and Son in 1907 in 198 pages; Subjects: Papermaking; Paper industry; History / General; Technology & Engineering / Manufacturing; Technology & Engineering / Technical & Manufacturing Industries & Trades;<

ISBN: 9780217456920

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustra… Mehr…

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 edition. Excerpt: ...delivers the grass to a link chain elevator and conveyor, discharging it right into the filling door of the boiler. The bales of esparto, sixteen to eighteen in number, are arranged alongside the duster, the bands are removed, and the sheaves are fed into the hopper, where they are disintegrated by the spikes of the revolving drum being brought in contact with the spikes in the stationary bar. To dust and fill a 50-cwt. boiling of grass in this manner does not occupy a period of more than 40 minutes. Boiling.--There are many forms of grass boilers, but it is a recognised fact that the most suitable boiler for the treatment of esparto is one of the Sinclair system. These boilers use less soda, and boil the esparto more regularly and quickly than any other stationary boiler now in use. The circulation is all that can be desired. On the top there is a douche chamber, the full diameter of the boiler, and the circulation is effected by conductors riveted to the inside shell of the boiler; underneath there is the necessary false bottom for draining liquors and washing waters. Taking such a boiler as (Sinclair''s, the steam pressure generally used is from 40 to 5o Ibs., and the time in boiling varies from two to two and a half hours. In most esparto mills, lye made from recovered ash is used, making up the loss in recovery with 70 per cent. caustic, and, if profitable to make into lye, alkali (fK per cent.) is used. Mr. Beadle states in his answer 900 Ibs. (0(1 per cent.). I infer from this that the lye may be made from 70 per cent. caustic, but that the quantities are expressed in terms of 00 per cent. With Sinclair''s boiler very good results can be obtained by 13 per cent. of 70 per cent. caustic, or, say, on a boiling of 50 cwts.--735 Ibs., or,... Clayton Beadle, Books, History, Chapters On Papermaking Volume 2 Books>History, General Books LLC<