Recent cotton mill construction and engineering by Nasmith Joseph

Author:Nasmith, Joseph
Language: eng
Format: epub, pdf
Tags: Textile factories -- Design and construction, Cotton manufacture, Cotton machinery
Publisher: London : J. Heywood
Published: 1894-03-25T05:00:00+00:00

Fig. 65.

(4) Buy your coal dry and keep it dry. Weigh the ashes which come out of the furnaces as well as the coal that goes into them.

(5) Be most careful to stop up air leaks in the brickwork and between the brickwork and the boiler.

(6) Establish a gasometer for collecting gases from the flues and analyse them for carbonic acid, and try to get ten or twelve per cent of that gas in the samples by cutting down the draught. The

apparatus and its manipulations are of the simplest character, and the information gained will be of great practical utility, and will often lead to considerable economy.

It may perhaps be of service to detail a few of of the causes of failure in mill boilers, these corrosion is a very common one. corrosion is the result of acidity in the feed water, which is often caused by the employment of water heated by means of exhaust steam, especially if animal oils or fats are used as lubricants. There are, however, feed waters drawn from wells or collected by surface drainage which contain free acids, and in this case the introduction of some form of

Among Internal

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