File:Transactions (1871) (14756008376).jpg

Identifier: transactionsmining47amer (find matches)
Title: Transactions
Year: 1871 (1870s)
Authors: American Institute of Mining, Metallurgical, and Petroleum Engineers
Subjects: Mineral industries
Publisher: New York (etc.)
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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T/6.E. Horizontal Section on line 2 ~ ?. Flfr I Figs. 1 and 2.—Brassert-Witting Whirler. various modifications by which this separation of dust is accomplishedare all evolved from the so-called cyclone processes developed in Ger-many about 20 years ago. Some of these systems recently developedin the United States are the Brassert-Witting, the Roberts, the Ken-nedy, and the Dyblie. A description of the Brassert-Witting whirlerand of the Dyblie whirler will illustrate the general principles of thistype of cleaner. 362 THE CLEANING OF BLAST-FURNACE GAS. Br assert- Witting Whirler. As shown in Figs. 1 and 2, the Brassert-Witting whirler consistsof a vertical outer cylindrical casing, A, and an inner inverted tube,B, which at its upper end is integral with the gas main C, whichtakes the cleaned gas away from the apparatus. This inverted tubeis flared at its lower end, D ; a number of iron or steel bars, E, are
Text Appearing After Image:
Fl6. <4.Horizontal Section on tine 4-4-. FI6.3. Figs. 3 and 4.—Braj-sert Modification of Bbasseet-Witting Whieler.fastened vertically around the chamber F and extend from a pointwell above the lower edge of the flared end D of the pipe to a pointwell below the lower edge of this pipe. In the lower part of thechamber .F is placed a cone, G, which allows the separated dust toenter the outlet pipe. THE CLEANING OF BLAST-FURNACE GAS. 363 The gas enters the apparatus tangentially through the flue H andis given a rotary whirling motion through the annular space betweenthe pipe B and the wall of the chamber A. On coming in contactwith the bars Ethe dust is caught in the channels between these barsand is held in position by the combined action of centrifugal forceand friction. As the gas continues to rotate within the annularspaces above mentioned, its velocity is gradually increased by theaction of the flared end of the receiving pipe until when it reachesthe lower*edge of the end its v

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