. The Locomotive. ore. Boston, Mass. Providence, R. I. Chicago, III. St. Louis, Mo. Hartford. Bridgeport. Cleveland. Cincinnati. OFFICES Office, 285 Broadway. 430 Walnut So. Holliday St. 10 Pemberton Sq. 15 Weybosset St. 115 Monroe St. 404 Market St. 218 Main St. 328 Main St. 246 Superior St. 78 West Third St. Wh Koconwtwt PUBLISHED BY THE HARTFORD STEAM BOILER INSPECTION AND INSURANCE COMPANY. New Series—Vol. IV. HARTFORD, CONN., JULY, 1883. No. 7. How to Regulate the Pressure in a Rotary Bleach. The explosion of a rotary bleach is usually attended with great destruction. The inquiry ar
. The Locomotive. ore. Boston, Mass. Providence, R. I. Chicago, III. St. Louis, Mo. Hartford. Bridgeport. Cleveland. Cincinnati. OFFICES Office, 285 Broadway. 430 Walnut So. Holliday St. 10 Pemberton Sq. 15 Weybosset St. 115 Monroe St. 404 Market St. 218 Main St. 328 Main St. 246 Superior St. 78 West Third St. Wh Koconwtwt PUBLISHED BY THE HARTFORD STEAM BOILER INSPECTION AND INSURANCE COMPANY. New Series—Vol. IV. HARTFORD, CONN., JULY, 1883. No. 7. How to Regulate the Pressure in a Rotary Bleach. The explosion of a rotary bleach is usually attended with great destruction. The inquiry arises why should such a boiler explode, making such havoc, when thereis no fire used in connection with it ? It will be understood that these boilers are filledwith the material to be bleached or treated, and the liquor used in the process. Thismass is heated by steam direct from the steam boileis. The bleach boilers are usuallysix or seven feet in diameter, while the boilers supplying the steam are only four and. «SFROM BOILER llllillliillliiliiiiiiiiiiMiiiimiiiw Miiiiiiiiiil onc-lialf, or five feet, in diameter, hencethe internal surface of the shell of therotary is greatly in excess of the internalshell of the steam boilers, and any varia-tion in pressure, especially if much in-creased, brings an enormous strain on therotary. The temperature of the liquor inthe rotary is that due to the pressure,hence this vast body of liquid forms animmense reservoir of power, ready to exertitself with destructive force if the oppor-tunity is given. Now if the steam is, fromcarelessness or other cause, allowed to ex-ceed the proper limit tlie safety of therotary is endangered, and if ruptureoccurs, this immense reservoir of powerbecomes active and fearfully steam connection between the steam boilers and the rotary should never be left ojjenand free so as to subject the rotary to the strains due to the variations in pressure of thesteam in the boilers; but there should be,
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