US1636949A - Spraying apparatus - Google Patents

Description

v 3,635,94 y 1927' E. M. BASSLER 9 SPRAYING APPARATUS Filed. April 17, 1924 2 Sheets-Sheet 1 July 26, -1927'. 1,636,949

E. M. BASSLER SPRAYING APPARATUS Fil d April 17, 1924- I 2 Sheets-Sheet z Patented July 26, 1927.

UNITED STATES EDWIN BASSLEB, OF MILWAUKEE, \VISCONSIN.

SPRAYING APPARATUS.

Application filed April 17, 1924. Serial No. 707,080.

This invention relates to spraying apparatus of the general type which forms the subject-matter of U. S. Letters Patent'No. 1,560,527, dated November 10, 1925, issued to me for improvements in spraying apparatus, and relates particularly to spraying runners therefor.

Spraying apparatus of the type specified is particularly well adapted for clarifying air and gas by removing therefrom dust and other solid particles of dirt contained therein.

In the use of spraying apparatus of this general type, the runner forming part of the apparatus is mounted within a trunk, conduit or housing through which a current of air or gas to be clarified or scrubbed is adapted to pass, a common arrangement being one in which the runner is mounted just beyond the inner end of the air or gas intake of a housing forming part of the apparatus, in position to define a space between the periphery of the disk portion'of the runner and the inner end of the air or gas in take, across which the pins of said runner will extend, their outer or free ends termi nating in close proximity to the wall of said intake, so that all of the air or gas to be treated will pass between said pins and will be subjected to a beating action thereby coincidentally with the conversion of the water or other liquid used into spray, and will become thoroughly mixed and intermingled with such spray so that the solid particles will become wet. Said spraying runner is preferably surrounded by a bailie against which the mixed spray and wet solid particles will be projected at high velocity, the impact of said mixture against said battle and material previously deposited thereon, operating to hold the mixture upon the sur face of said baffle for a short interval of time, sufiicient, however, to thoroughly wet the solid particles contained therein and to cause them to adhere to the baffle, from which they will be washed down-into a suitable receptacle provided for the purpose,

Described generally, spraying apparatus of the type to which my invention relates comprises a runner consisting of a central disk portion which forms the body. of the runner and pins secured in said disk at a distance from its axis of rotation, said pins being preferably arranged in a circular series concentric with the axis of rotation of said disk.

One object of the present invention is to provide a runner for sprayingiapparatus of this general type, in which the disk portion of said runner will be relatively very small as compared with the overall dimension thereof and also of the air intake of the apparatus or other trunk or conduit to which my improved spraying apparatus is applied, whereby said runner will obstruct or throttle said intake, trunk or conduit to a relatively small extent while, at the same time, maintaining full efficiency of said runner.

A further object of the invention is to increase the eihciency of runners of the gen eral type specified, whereby, for a given duty, the size of the runner may be very much reduced as compared with runners of the particular type shown and described in my said prior Patent No. 1,560,527, having a single set of pins, thereby effecting a corresponding saving in the cost of the runners, both in material and labor, while, at the same time, rendering it much easier to handle runners designed for treating large volumes of air or gas.

In accordance with my invention, I attain the objects thereof by the use of a runner comprising a plurality of'sets or series of spraying pins arrangedconcentric with the axis of rotation of said runner and at clifferent distances therefrom, the free ends of the inner set or series terminating adjacent to the attached ends of the outerseries and in such relation thereto that spray from the inner set or series of pins will be discharged across the path of movement of the outer set .of my said prior application.

The invention also comprises the various other features, combinations of features and details of construction hereinafter described and claimed. 7

-lathe accompanying drawings, in which spraying apparatus embodying my invention and improvements is fully illustrated,

Figure 1 is a "face view of a'runner embodying my invention and improvements.

Figure 2 is a side view thereof, partly in elevation and partly in section on the line f22 of Fig. 1.

Figure 3 is a top plan view of an air or gas washing and scrubbing apparatus comprising a runner of my invention, parts thereof being broken away; and

Figure 4 is a side view, partly in elevation and partly in vertical central section.

Describing the runner of my improved spraying apparatus, to which the present invention particularly relates and which is designated a whole A, 1 is a disk forming part of the traineor body portion out said runner, preferably made of cast iron or other suitable cast metal, the front face thereof being substantially conical in shape, the apex of the cone being concentric with the axis of rotation of the runner, and the sides of said cone being slightly concave.

Formed on the rear side of the disk 1 is a hub. 2 provided with a hole or opening 3 adapted to receive the shaft for mounting; said disk. Said hub is preferably connected to the body portion of said disk 1 by ribs 4 which render the entire structure relatively lightand at the same time very strong and rigid.

The apex of the conical front side oi the dish: 1 comprises a separate section 5, pretcrably made of bronze reinovably secured in the end oi the hole or Opening in the hub 2. which extends entirely through the hub 2 and disk 1, said apex portion 5 having screw tlui'eadcd engagement with an enlargement of said hole or opening, as shown at 6. and com 'irising a reducedinner portion 7 closely titted to the hole or opening 3. hen th apex portion 5 is removed, the screw threaded hole 8 provides convenient means for making lifting connections to said runner.

My improved runner also comprises two sets of spraying pins designated, respectively, 8, 8.

The pins 8 are secured in the perimeter of the disk 1 and are flared trontwards relative to the face thereof at a wide angle to its axis of rotation.

In the preferable construction shown. the pins 8 are secured directly in a ring 9, which forms a detachable portion of the disk. 1, being fitted to the perimeter thereof and secured thereto bylugs 10 thereon which are bolted or otherwise secured to corresponding lugs 11 on the disk 1. Said ring will desirably be made of bronze. Convenient means for thus securing the pins 8 in the ring 9 consist in forming holes in said ring at proper angles, to which the pins 8 are titted and through which they are inserted before said ring is secured in position on the disk 1, the inner ends oi said holes being countersunk as shown at 12, and the pins having correspondinglytapered heads 13, the relation being such that when the pins are inserted through the holes in said rirg and said ring, is adjusted and secured to the disk 1, the heads of said pins will bear against the perin'ieter of said disk.

The pins 8 of the outer set or series, are secured in a ring; 1 L supported at the outer ends oi: arms 15 bolted or otherwise rigidly secured to the disk 1. As shown, lugs 16 formed on the ring; 1 1: are bolted to corresponding; lugs 17 formed on the ends of the arms 15.

The pins 8' are secured in the ring 1% in substantially the same manner that the pins 8 are secured in the ring 9, being retained therein by a ring 18 secured to the inner side of said ring; 1- 1 so as to extend over the countersunk inner ends of the holes in which the tapered heads out said pins 8 are secured.

The pins 8 and the arms 15 are made of such relative lengths that the outer ends of the pins 8 will terminate at or adjacent to the attached ends of the pins 8 ol the outer set or series.

The inner or series of pins 8 are troutwardly and outwardly flared, the relation being such that spray tornied thereby will be discharged across the path oi? movement oi the outer set or series of pins 8", pr, erably in such manner that the larger volume thereof will be discharged upon said outer set or series of pins adjacent to their attached ends.

I have found in practice, that the best re sults are obtained with the use of pins which tlare at a vide angle relative to the axis of rotation of said runner, the inner set or series of pins preferably flaring at a greater angle than the outer set or series of pins.

lVhat I now consider a preferable and desirable relation is one in which the pins 8 flare at an angle of approximately degrees and the pins 8 at an angle of appro mately 60 degrees to the EUClSbf rotation of said runner.

This relation, however, admits of variation within considerable limits.

In practice, the pins ot both sets or series are spaced relatively short distances apart, the distance between said pins increasingoutwardly, owing to the flare oi the pins. lin practice, I have found a desirable relation to he one in which the distance between said pinsboth ot' the inner and outer series, at their attached ends. is substantially equal to the diameter of the pins, a desirable size of pins for most purposes being about 1, of an inch in diameter,

In Figs. 3' and a. 1' have for purposes of Clear and definite illustration shown. my in proved runner embodied in an apparatus adapted for washing or scrubbing air or gas, said apparatus comprising a main housing, which may be made of sheet metal or other suitable material, designated as a whole B. Said housing comprises cylindrical side walls 19, the lower ends of which rest upon suitable supports or piers 20, preferably made of concrete, and the upper end of which is closed by a top wall 21 preferably made of cast iron provided with a central opening secured in which is a short, hollow open ended cylinder or thimble 22, the opening through which forms the air or gas intake of the apparatus. Where the apparatus is designed for washing or scrubbing gas, other than air, a suitable supply pipe or flue is adapted to be connected to the outer end of said cylinder 22.

The lower end of the housing B is closed by means of a sheet metal bottom 24 which is made in the shape of a truncated cone, the lower end thereof being secured to the lower end of the side walls 19 of the housing B;

The housing B is also provided with discharge openin s for the washed or scrubbed air or gas consisting, as shown, of holes or openings 25 formed in the top wall 21 of the housing adjacent to its outer edge. Said discharge openings communicate with a bustle pipe 26 adapted to connect said housing with a fan or blower of any usual type or design, not shown, adapted to create a current of air or gas to be treated through the housing of the apparatus.

My improved runner A is mounted directly below the inner end of the cylinder 22 which defines the intake 23 of the housing B. As shown, said runner is mounted at the upper end of an upright shaft 27, having hearings in the flat upper end of the bottom 2% and on a concrete base or foundation 28. Rotation is adapted to be imparted to the shaft 2? and runner A secured thereto by a motor, indicated at 29, mounted on the foundation 28, the rotor shaft 30 of which is con nected to a pinion shaft 31 by means of a flexible coupling The pinion shaft 31 is mounted in a bearing 33 on the foundation 28 and secured thereto is a bevel pinion 34 which meshes with a bevel gear 35 secured to the shaft 27.

The disk 1 of the runner A is relatively much smaller than the intake 23 of the housing B and is preferably positioned beyond the inner end of the intake cylinder or thimble 22, the relation being preferably such that the free area of the space between the periphery of said disk and the inner end of said cylinder or thimble will be substantially equal to the transverse area of said intake. Also, the pins '8, 8 and the arms 15 are proportioned so that the outer ends of the outer set or series of pins 8 will extend into close proximity to the inner end of the cylinder 22 forming the intake 23, so that i all air or gas entering the housing B through said intake will pass between the pins 8, 8 of the apparatus.

Surrounding the spraying runner A at a distance therefrom and between said runner and the discharge openings 25 through which thewashed air or gas passes from the housing B into the bustle pipe '26 is a baffle (36.

Water is adapted to be projected axially against the apex ofthe conical front face of the disk 1 of the spraying appartus from a nozzle 37 supported at the end of a pipe section 38 which is connected to a flanged connection 39 on the cylinder 22,.the outer end of which is adapted to be connected with a source of supply of water or other liquid under pressure by a pipe 40.

Suitable drainage connections for the housing B are provided at its lower end, but said connections form no part of the present invention and for that reason are not shown.

In operating the apparatus, the motor 29 is firststarted and when the spraying runner A is rotating at desired speed, the water is admitted to the pipe 30 from which it is discharged against the conical face of the disk 1 through the nozzle 37 and, as soon as suitable spray curtain is produced across the space traversed by the air or gas to be washed, the blower applied to the bustle pipe 26 is started, thus putting the entire apparatus into operation.

The water orother liquid projected against the conical face of the disk 1 will be spread out over the face of said disk in the form of a thin sheet, in which form it will pass off from said disk and into the path described by the inner set or series of the pins 8 by which it will be subjected to a combined beating and centrifugal action which, as previously explained, will convert the water into spray, and 'will project the spray particles outwardly into the path of movement of the outer'set or series of pins 8 which, owing to their greater peripheral speed, will in turn, subject the spray particles to a further, beating and centrifugal action, which will reduce them to a spray of desired fineness.

The runner A will operate to throw the spray particles formed thereby, together with the air or gas entering the housing 'B through the intake 23, outwardly at high velocity and will produce a thorough mixing or intermingling of the air or gas, par ticularly the solid particles contained therein, with the spray particles, thus wetting said solid particles and causing them to be thrown a ainst the baflle 36, where they will be held I01 a short interval of time, sufli cient, however, so that said solid particles will become thoroughly wet and will ultim t y be Wash d down from he flie in o the lower end of the housing B by the water formed by the accumulation o1 spray thereon.

The baffle 36 will also prevent entrainment of spray particles by the current of air or gas into the air and gas discharge connections of the apparatus. 7

Extended comparative tests and experiments in actual use have demonstrated that with the use of my improved spraying runnerhaving two sets or series of pinssubstantially the same eificiency and results may be obtained with a runner having an over-all diameter oi approximately six feet (6'), as can be obtained with a runner comprising only one set or series of pins, having an over-all diameter of from ten (10) to twelve (12) feet, under substantially similar operating conditions. The air and gas washing apparatus shown in Figs. 3 and 4; of the drawings anddescribed in the specification is not herein claimed, for the reason that it forms the sub ject-matter of and is fully shown, described and claimed in an application for U. S. Letters Patent therefor heretofore filed by me on or about August 20, 1923, and numbered serially 658,360, to which reference is here made in accordance with'th-e provisions of rule 42} of the Patent Oiiice Rules of Practice.

I claim- 1. A runner for spraying appantus oi the type specified, comprising a body portion, a plurality of outwardly-flared sets of spaced pins which project from said body portion at diflierent distances from its center, said body portion comprising a central disk in which the innermost set out pins is secured and against whichliquid is adapted to be discharged in operation, the free ends of the pins of an inner set being positioned in such relation to the pins of an adjacent outer set that spray from the inner set of pins will be discharged across the path traversed by the pins of said adjacent outer set. 2. A runner for spraying apparatus of the type specified, comprising a body portion, a plurality of outwardly-flared sets of spaced pins which project from said body portion at different distances from its center, said body portion comprising a central disk in which the innermost set oit'pins is secured and against which liquid is adapted to be discharged in operation, the tree ends of the pins of an inner set terminating adjacent to the attached ends of the pins of an adjacent outer set, the relation being such that, in operation, spray from the inner setof pins will be discharged across the path traversed by the pins of the acent outer set. V 3. A runner for spraying apparatus as specified in claim 1, which comprises only two sets of pins.

i. A runner for spraying apparatus as specified in claim 1, in which the diit erent sets 01 pins are arranged in circular series.

A runner for suraying apparatus as specified in claim 1, in which the dififerent sets of pinsare flared at difi'erent angles to the axis of the runner, the inner set being flared at a greater angle than the adjacent outer set.

6. A runner for spraying apparatus as specified, in claim 1, in which the diameter of the central disk is relatively much less than the overall diameter of the runner.

7. A runner for spraying apparatus as specified in claim 1, in which the number of pins in each set increases successively from the innermost set outwards.

8. A. runner for spraying apparatus as specified in claim 1, in which the pins of differen sets are spaced substantially equal distances apart.

9. A runner for spraying apparatus as specified in claim 1, in which the pins of difi'erent sets are of substantially equal lengtl I 10. A runner for spraying apparatusof the type specified, comprising a body portion, a plurality of outwardly-flared sets of spaced pins which project from said body portion at different distances from its center, said body portion comprising a central disk in which the innermost set of pins is secured and against which liquid is adapted to be discharged in operation, the free ends of the pins of an inner set being positioned in such relation to the pins of an adjacent outer set that, in operation, spray from the inner set of pins will be discharged across the path traversed by the pins of said adj acent outer set, arms secured to said disk and a ring secured to said arms in which an outer set of pins is secured.

11. A runner for spraying apparatus as specified in claim 10, in which the means for securing said pins in said body portion comprises a circular seat formed on said body portion, and a ring secured to said seat, said ring being provided with holes through which said pins are inserted, the inner ends oi: said holes eing countersunk and the pins having correspondingly tapered heads, contact of the heads of said pins with the seat on the body portion of the runner when said ring is adjusted thereto operating to secure said pins in said holes.

In witness that I claim the foregoing as my invention, I aiiix my signature this 28th day of March, A. D. 1924.

EDWIN M. BASSiLER.

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