US389785A

US389785A - allen

Info

Publication number: US389785A
Authority: US
Publication date: 1888-09-18
Anticipated expiration: 1905-09-18

Description

(No Model.) 2 Sheets-Sheet 1.

J. F. ALLEN.

GAS SGRUBBEIL.

No. 389,785. Patented Sept. '18, 1888.

WITNESSES: l/Vl/E1V7'0l? Io'lm/L'E FLU. mm-

W hi4 ATTORNEYS 7 N. FEIERS. mmumm nu, wmin mm 04c.

' (No Model.)

. 2 Sheets-Sheet 2. J. P. ALLEN.

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UNITED STATES PATENT OFFICE.

JOHN F. ALLEN, OF NEW YORK, N. Y.

GAS-SCRUBBLER.

SPECIFICATION forming part of Letters Patent No. 389,785, dated September 18, 1888.

' Application filed December 31, 1887. Serial No. 250,499. (No model.)

To all whom it may concern.-

Beit known that I, JOHN FRANKLIN ALLEN, a citizen of the UnitedStates, residing at New York, in the county and State of New York, have invented new and useful Improvements in Gas-Scrubbers, of which the following is a Specification. My invention relates to the means employed for treating gas, whereby the ammonia and other objectionable products are removed by bringing the gas into intimate contact with water or other purifying-liquid.

The object of my invention is to provide, in a simple and economical form, the maximum of available wet surfaces within agas-ehamber of any given capacity. I secure this object by coiling upon itself, at right angles to the plane of the drum or shaft which supports it, a long strip of sheet metal of suitable width, having both of its edges turned up so as to act as a continuous trough, which, when rotated, will cause liquid entering the outer convolution of its coil to pass between each layer, andthrough its own gravity be retained at the lowest point of the several layers until discharged in a central drum carried by the horizontal shaft which gives motion to and supports thecoil. By this means the entire surface of the metal will be continuously wet and exposed to the action of the gas. I secure a uniform space between the several convolutions of the strip by the use of an intermediate plate having projections on both of its sides, so as to present points of rest or support for the sheets of metal between which it is placed.

These projections are preferably formed by indenting the plate from both sides. The indentations and the projections in this plate, as well as the plate itself, afford additional wet surfaces for the absorption of impurities from the gas in its passage through the coil. The coil is kept in position by an outer rim of metal of suitable thickness, which acts as an inclosing-band. This band or rim is supported on radial arms extending from the shaft or drum on either side of the coil. Any number of coils maybe placed upon the shaft and inelosed within a cylinder or casing having openings for the admission and discharge of gas and liquid. The drum, which forms the initial point of attachment for the coil, is provided with suitable openings for the admission and 1 discharge of the liquid lifted to the center by the rotation of the coil. \Vithin the cylinder, and at the base of each coil, is a shallow receptacle or compartment for holding the liquid. Beneath said receptacles or compartments are pockets for receiving the deposits of tar or similar matter discharged from the gas. Suitable means for reducing the temperature of any one or all of the compartments or receptacles for the liquid are provided, all of which is more fully pointed out in the following specification and claims, and illustrated in the accompanying drawings, in which- Figure 1 represents a longitudinal section in the plane 00 m, Fig. 2, of a gas-scrubber containing my invention. Fig. 2 is a transverse section thereof in the plane y y, Fig. 1. Fig. 3'is a cross-section of the inclosing-band and drum. Fig. 4 is a face view of Fig. 3. Fig.5 is a sectional elevation of a modified form of drum and coil. Fig. 6 is a perspective view of aportion of the intermediate or supporting sheet. Fig. 7 is a perspective view of the trough-shaped sheet.

Similar letters indicate corresponding parts. In the drawings, the letter A designates a cylinder or casing having a suitable opening, D, at one end for the admission of the gas to be purified, and an opening, F, at the opposite end for the discharge of the gas. The liquid is introduced through a funnel, 7, at one end of the cylinder, and makes its exit through a U shaped tube, 8, at the opposite end thereof. In the center of the drum is a shaft, C, carrying a driving-pulley, E, exterior tothe cylinder A, and a number of drums, L, in the interior of the same.

B B, &c., are a series of coils through which the gas passes. The inner end of each of said coils is secured to its respective drum L. Each coil consists of a spirally-wound troughshaped sheet of metal having flaring corrugated sides 2, which is held in place by a rim or inclosing band, 4, Figs. 1, 3, and 5. The rim is secured to the drum by radial arms K K, Figs. 3 and 4; or it may be secured by like means to the shaft 0. Any suitable number of such coils may be arranged in the cylinder or casing, all being constructed in the same manner.