US1744863A - Gas-washing apparatus - Google Patents

Description

Jan. 2s, 1930. A. J. BOYNTON 1,744,863

GAS WASHING APPARATUS 5 sheets-sheet 1 Filed June 4, 192'?r -QIFJ- 'f3 Jan. 28, 1930. A. J. BoYNToN 1,744,863

{ GAS WASHING APPARATUS Filed June 4, 1927 5 Sheets-Sheet 2 WM @y Jan. v28, 1930. A. J. BoYNToN GAS WASHING "APPARATUS Filed June 4. 1927 3 Snets-sneet 5 Patented Jan. 28., 1930 UNITED STATES PATENT .OFFICE ARTHUR J'. BOYNTON, 0F WINNETKA,ILLINOIS, ASSIGNOR TO H. A. BRASSERT & COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION 0F ILLINOIS GAS-WASHING- APPARATUS Application led June4, 1927'. ASerial No. 196,516.

This invention relates to improvements in gas washing apparatus and consists of the matters hereinafter described and more particularly pointed out in the appended claims.

The invention relates generally/to that type of gas washing apparatus in which the gas and washing fluid are introduced into a casing containing alternately disposed, interacting, fixed and rotary disintegrator elements by means of which the gas and Washing fluid are beaten together and the solid particles, wetted by the washing fluid, are eliminated from the gas by centrifugal action of the disintegrator elements.

In gas washing apparatus of the kind as now generally constructed, there remains in the body of gas, after the greater part of the muddy water in the form of the larger drops has been eliminated therefrom by striking a wetted surface of the casing or of the parts contained therein, a very finely divided residue of water similar to fog in that it is a liquid and not a vapor.

One object of the present invention is to provide in connection with the disintegrator apparatus, a Water eliminator by means of which the gas, after it leaves the disintegrator apparatus, is deprivedl and freed of this fogiike content.

Another object of the invention is to pron` vide in a disintegrator apparatus a novel means for discharging' the washing fluid into the zone of operation of the disintegrator elements so that the entire area of said zone will be subjected to the full drenching and washing action of the water and which will be unaffected by the force of the flow of incominggas at an angle to the direction of discharge of the water and the tendency of the gas to deflect the streams of water towards the center of the machine and towards one part of the disintegrator Zone only.

These and other objects and advantages of the invention will appear more fully as I proceed with my specification.

apparatus in a plane indicated by the line 3-3 of Figure l, A

Figure 4 is a-view representing a vertical section through the apparatus in a plane indicated by the line 4 4 of Figure 3.

Figure 5 is a fragmentary sectional detail of a slightly modified form of the water distributing cylinder used in the apparatus.

Referring now to that embodiment of the invention illustrated in theA drawings 10 indicates a casing comprising a voluted in-A termedite shell member 10a, with the volute disposed in a vertical plane, and inlet shell members 10b, 10b located at either side of and communicating with said intermediate Shell member. ll indicates a horizontal shaft which carries the rotary disintegrator elements and the water distributing element. Said shaft extends through the casing comprised of the shells l0a and 10b and has its axis of rotation coincident with the axis of the voluted part of the casing. The voluted member 10a of the casing has its smaller section at the top and left, as shown in Figure t, and its larger section at the bottom. 12 indicates the discharge orifice-of the voluted member 10a, said orifice being disposed with its axis of discharge tangential to the bottom part of the volute, 12 indicates a discharge o utlet at the bottom of the voluted shell for the water soaked solid matter discharged from the gas. The inlet shells l0b have large horizontally disposed inlet passageways 11 which have their axes disposed tangentially. After the gas has passed through the disintegrator zone, as will presently be described,

it follows vthe volute of the intermediate shell member 10"L to the horizontal, tangentially disposed discharge orifice 12.

The shaft 11 extends through stuing boxes 15, 15 attached to the vertical side walls 16, 16 of the inlet shell members 10b. The casing as a whole is mounted upon a suitable base 17 and is preferably built of structural `parts in such manner that it may be separated along the vertical median plane of the voluted shell member l0a and also on a horizontal plane through the central axis of the shaft 1l, so that it may be conveniently taken apart to get at the parts within the casing for repair or for removal and replacement. Pedestals 17, 17a rising from the base 17 support bearings 17h, 17h .for the shaft l1.

On the shaft 11 in the median plane of the voluted shell Vmember 10a ofthe casing is mounted a disc 19. Said disc is embraced and fixed between bracket plates 20, 20, each of which is formed to provide a long hub part 21 and a radially extending part 22. The latter part 22 presents a curved path from the end of the hub part 21 to the inner end of one of two like horizontal cylindrical shells 23, 23 suitably attached to said brackets with their central axes coincident'with the axis of rotation of the shaft 11. At the ends of the two shells 23, remote from the disc 19, are attached inwardly extending, radial flanges 24. The two shells 23 with their annular flanges 24 together provide an annular trough about the shaft 11 to receive the washing water. Said washing water is introduced into the casing by pipes 25, 25 depending through familiar gas- tight fittings 25a, 25a in the top walls 10c of the inlet shells 10b. Said pipes have their open bottom ends disposed slightly within the planes of the ,flanges 24 on the shells 23 and at the sides of the shaft 11. Any means including a suitable trap, as 25", (see Figure 1) may be used for introducing water through the pipes 25.' Vhen the shaft 11 is rotated and water is introduced through the pipes 25, the water will be deflected and thrown outwardly` by the parts 22 of the bracket plates 20 so as to distribute it evenly over the trough constituted by the cylindrical shells 23 and the flanges 24. to maintain a substantially even level of water therein.

The cylindrical shells 23 are perforated -and in said perforations are fixed radially projecting pipes 27, 27. Said pipes are arranged vin rows placed preferably at equal arcuate distances about the periphery of the cylinders 23 (see Figures 3 and 4), and the number of pipes in a row and the number of rows of pipes may be varied in accordance with the width of the machine, its diameter and the speed of rotation of the shaft. Through these pipes, the water collected in the trough, comprised of the cylinders 23 and their `fianges 24, is discharged radially Vfrom theA rotating trough by centrifugal force towards the zone of the fdisintegrator elements now to be described.

In the voluted shell 10il there are fixed to its vertical side walls 28, 28 in annular radially spaced rows about the rotative axis of the shaft 11, horizontally disposed, inwardly extending, fixed disintegrator elements 29, 29. In alternation with said rows of fixed disintegrator elements 29 are located radially spaced, horizontally disposed, annular rows of disintegrator elements 30, 30 carried by the disc 19 and extending to either side of said disc between the rows of fixed disintegrator elements. The said walls 28, 28 have circular openings 28a approximating in diameter the diameter of the inner row of disintegrator elements, which row, illustrated in this case, but .not necessarily, is a row of rotary disintegrator elements 30 carried by the disc. These openings constitute inlets for the flow of gas ,from the inlet shells 10" to the voluted shell 1()a and in the first instance to and through the zone of the disintegrator elements 29 and 30. By the rotation of the disc 19, the familiar interaction and beating together of the washing water and gas is brought about by the rapid relative movement of the disintegrator elements, the water being discharged thereto through the pipes 27 as heretofore described.

The iiXed disintegrator elements 29 have their ends extended into close relation with the disc 19 and the rotary disintegrator ele-' ments 30 have their ends in like manner extended into close relation with the upright side walls 28, 28 of the volute shell. As a necessary clearance, however, must be provided at said ends, narrow, flat rings 31 are provided and carried at the free ends of the several rows of disintegrator elements 29 and 3() and like rings 32 are provided at their supported ends in contact with the supporting member (the side walls 28 or the disc 19), 4as clearly shown in Figure 3. By this arrangement the passageway, otherwise presented for the gas through the clearance spaces at the ends of the disintegrator elements adjacent the side walls 28 and adjacent the disc 19, is blocked and all the gas is forced to pass through the zone of' thorough, effective disintegrator action. Preferably intermediate rings 31x are placed on the rotary disintegrator elements 30 for purpose of stid- DESS.

)Vhen the gas-enters into the space between the water discharge trough and the zone of operation of the disintegrator elements, the tendency of the flow of gas would be to divert the streams of water and to bend them over aai) towards the disc 19. As a result, the parts of the disintegrator elementsv adjacent the vertical side walls of the voluted casing would not receive a full discharge of water. The use of the, pipes 27 obviates and prevents this deflection of the streams of water, since said streams are brought by the pipes into close relation with the inner row of disintegrator elements and are carried uniformly throughout the entire width of the disintegrator zone between the disc 19 and the upright side walls 28 of the voluted casing.

AThe operation of the apparatus is as follows -Propelled in any desirable or suitable manner, the gas enters the inlet shells 10b tangentially through their inlet orifices 13, passes vertically upward and then horizontab ly through the inlet openings 28a in the side Walls 28 of the voluted shell member 10a. It then passes with the water (discharged from the water-distributing-trough by the pipes 27) through the disintegrators, the action of which is familiar, and thence through the volute of the casingwhence it passes through the discharge orifice 12. The heavier,.larger Water globules, containing solid matter eliminated from the gas, striking the wet surface of the volute or of the walls or of the carrying pipes, will drop out of the current of gas and pass out from the casing through the water discharge opening 12aL provided at the bottom of the volute.

Preferably the pipes 27 are provided with nozzles of such form andconstruction that their discharge jets intersect at or near the inner row of disintegrator elements, whether said elements be fixed or rotary. As a result, a cylindrical zone of dense spray is provided at or near the inner surface of the disintegrating zone. Thus, all gas as it passes into the disintegrating zone is thoroughly wetted when it passes through this dense cylindrical film of washing fiuid. (See Figure 3).

It may be desirable in order to wash the sides of the pipes 27 to provide auxiliary openings 33 in the cylindrical shells 23 adjacent the bases of said pipes, as shown 1n Figure 5.

When the gas passes from the disintegrator apparatus, it stillcontainsafinelydividedfoglike residue of water. This fog-like content of the gas, consisting of finely divided globules of water, has greater mass and consequent-ly greater inertia than the gas, and this characteristic isv made use of in the water eliminator now to be described through which the gas is passed after it leaves the disintegrator.

I claim as my invention: 1. In a disintegrator apparatus, in combination with a casing, relatively rotative disintegrator members operating in said casing, an annular trough rotatable in said casing,

.means for supplying water to said trough,

and a plurality of tubes adapted for discharge of water from said trough, said tubes having their discharge ends closely approached to the disintegrator element nearest to said trough.

2. In a disintegrator apparatus, in combination 'with a. casing, relatively revolving,

alternately disposed, annular rows of disintegrator elements operating in said casing, a cylindrical trough rotatable in said casing on an axis coincident with the axis of revolution of said disintegrator elements, means for supplying water to said trough, and a plurality of radial tubes adapted for discharge of water from said trough, said tubes having their discharge ends closely approached to the row of disintegrator elements nearest to said trough.

3. In a disintegrator apparatus, in combination with a casing, relatively rotative disintegrator members operating in said casing, an annular trough rotatable in said casing, means for supplying water to said trough,

and a plurality of tubes adapted for discharge of water from said trough, said tubes having their discharge ends closely approached to the disintegrator element nearest to said trough and being arranged to discharge over the entire width of the zone an axis coincident with the axis of revolutionl of said disintegrator elements, means for supplying water to said trough, and a plurality of radial tubes adapted for discharge of water fromsaid trough, said tubes having their discharge ends closely approached to the row of disintegrator elements nearest to said trough and being arranged in rows adapted to discharge over the entire width of the zone of operation of said disintegrator elements.

5. In a disintegrator apparatus, in combination with a casing, a disc rotatably mounted in said casing, annular rows of disintegrator elements alternately disposed with alternate rows carried, respectively. by said casing and by said disc, a flanged cylinder fixed to said disc, a plurality of arcuately spaced rows of pipes carried by said cylinder and adapted for discharge'therefrom, means for supplying water to said cylinder, said rows of pipes extending across the entire horizontal projection of the zone of operation of said disintegrator elements.

y 6. In a disintegrator apparatus, a casing comprising an intermediate voluted upright casing member and inlet shells provided with openings into said voluted casing coaxial with the axis of the volute, a horizontal shaft extending through said casing, radially spaced annular rows of fixed disintegrator elements carried by said voluted casing, a disc on said shaft in the vertical median plane of said volute, radially spaced annular rows of disintegrator elements carried by said disc and interlaced with said rows of Jfixed disintegrator elements, a cylindrical flanged trough carried by said disc and being of a length sub- ICO llO

stantially equal to the Width of said volutecl casing member, means for introducing Water into said trough and a plurality of arcuately spaced rows ot' pipes fixed in openings in said cylindrical trough and extending topoints approaching the inner row of disintegrator elements, the rows of pipes b'eing' co-extensive in length with the Width of the voluted member of said casing.

In testimony that I claim the foregoing as my invention, I aiiX my signature this 24th clay of May, A. D. 1927. A y

ARTHUR J. BOY-N TON.

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