File:High pressure blow-through kier.jpg
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| Description | A kier, from 10 to 12 ft. in height and from 6 to 7 ft. in diameter. Shown in sectional elevation. An egg-ended cylindrical vessel constructed of stout boiler plate. It stands on three iron legs riveted to the sides, but not shown in the figure. The bottom exit pipe E is covered with a shielf-shaped false bottom of boiler plate, or (and this is more usual) the whole bottom of the kier is covered with large rounded stones fromt he riber bed, the object in either case being simply to provide space for the accumulation of liquor and to prevent the pipe E being blocked. The cloth is evenly packed up to within about 3 to 4 ft. of the manholes M, when lime water is run in through the liquor pipe until the level of the liquid reaches within about 2 ft. of the top of the foods. The mangoles are now closed, and steam in turned on the injector J by opening the valve v. The effect of this is to suck the liquor through E, and to force it up through pipe P into the top of the kier, where it dashes against the umbrella-shaped shield U and is distributed over the pieces, through which is percolates, untl on arriving at E it is again carried to the top of the kier, a continuous circulation being thus effected. As the circulation proceeds, the steam condensing in the liquor rapidly heats the latter of the boil, and as soon as, in the opinion of the foreman, all air has been expelled, the blow-through tap is closed and the boiling is continued for periods varying from six to twelve hours under 20-60 lb pressure. Steam is now turned off, and by opening the valve V the liquor, which is of a dark-brown colour, is forced out by the pressure of the steam it contains. |
| Source | 1911 EB, Vol. 4, Page 52 |
| Author | Encyclopedia Britannica |
| Permission (Reusing this file) |
public domain |
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This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States. |  |
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| current | 02:50, 16 July 2009 | | 314 × 450 (50 KB) | Phn229 (talk | contribs) | {{Information |Description=A kier, from 10 to 12 ft. in height and from 6 to 7 ft. in diameter. Shown in sectional elevation. An egg-ended cylindrical vessel constructed of stout boiler plate. It stands on three iron legs riveted to the sides, but not sho |
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