USRE16191E

USRE16191E - Machine for disintegrating and emulsifying materials

Info

Publication number: USRE16191E
Authority: US
Publication date: 1925-10-27

Description

t- 27, 1925- J Re. 16, 4 v H. POVEY ET AL- I MACHINE FOR D1S INTEG'RATING AND EHULSIFYING MATERIALS 3 Sheets-Sheet 1.

Original. Filed Aug. 5, 1923 INVENTORV hf. P0 l/EY d H0. HA4LA5 IATERIALS Oct. 27, 1925 H. POVEY El AL CHINE FOR DISINTEGRATING AND EIULSIFYING ori in Filed Aug. 5, 1923 :s Sheets-Sheet 2 Oct. 27,1925. Re. 16.191

H. POVEY ET AL CHINE FOR DISINTEGRATING AND EHULSIFYING MATERIALS 3 Sheets-Sheet :5

Original Filed Aug. 3, 1923 INVENTORS. hfPOl/EY f #0 HALL/ls named Oct. 27, 1925.

reissue filed August 11,

To all whom it may concern:

Be it known that we, HARRY Povnr and. ALDANTE OSWALD HALLAS, both subjects oi the King of Great Britain, residing at Stan- '5. more, -Middlesex, England, and London, ngland, respectively, have invented certain new and useful for rials, tion.

-Our invention consists in the improved disintegrating, emulsifying or admixingmachines to be hereinafter'described.

eferring now to the accompanying draw- 86 ings, which illustrate our invention, and

form part of our specification,

Figure 1 shows a part sectional elevation of one form of machine constructed according to our invention, while Figures 2 and 3 show front elevations of the oppositely rotat' g members shown in igure 1-.

Figures 4, 5, 6 and 7, show Sectional and front elevations alternately of modified 3 forms of oppositely rotating membe p In carrying our invention into efl'ect according to one form,. two similar portions 1 and 2, is constructed and assembled as shown in Figure 1.

\ In this casing members 3 and 4 arranged to rotate in opposite directions, are mounted e member 3 being mounted on the shaft 5 and the member 4 on the shaft 6.

The shaft 5 is rotatably mounted on bearings 7 and 8, integrally formed with the casing while the shaft 6 is similarly mounted on the bearings 9 and 10. v, I

Between the bearings 7 and 8, a pulley 11 is rigidly attached to the shaft 5, while a pulley 12 is similarly mounted on the shaft 6, between/the bearings 9 and'lO.

the bearing 7 the shaft 5 is of reduced ripheries for manipulating purposes.

. thereon found eflicient in practice.

a casing formed of members 3 and momma ron DISINTEGRATING AND murisrrme MATERIALS. on' maim. 1,489,786, dated April 8, 1924, swarm. 355,542, filed August a, 1923'. Application for 1925. Serial Ho. 49,627.

diameter and has a threaded portion 13 formed at its outer end, while a second portion 14 is also formed these threaded cular nuts 15 and 16 engage, provided with portions cirthe nuts being spaced holes 17 on their pe- 60 is similarly formed, and is nuts 18 and 19 which have on their peripheries.

order to obtain the desired clearance between the flanged portions 21 and 22 of the members, and also between the ends of the blades sitely rotating members 75 In the face of the

member corresponding grooves

29, and 31 with

projections

32, 33 and formed.

On the

projections

26, 27 and 28 on the member 3, Figure 2, a number of axially dis posed blades 35 are formed.

he

projections

32, 33 and 34 on the memher 4 have likewise axially'disposed blades 36 formed thereon.

(Jo-axial with the shafts 5 and 6 a number of

ducts

37 and 38 respectively are formed for leading the material to the operative faces of the members 3 and 4. Between the members 3 and 4 and the portions 1 and 2 of the casing, packing rings 39 and 40 are disposed to prevent leakage of the material between these parts.

A gland 41 carrying a packing ring 42, and .a loose ring 43 are provided around the shaft 5,'*to prevent leakage of lubricating oil into the casing, a similar arrangement, not shown, being provided around the shaft 6.

I The anged portions 21 and 22 of the 4 are spaced apart to form a narrow annular duct through which the material is projected, after treatment by the \th chambers 46 matelyv --ducts-61 and 62, as before,

the head inthe case of gravityfeed, throng each ring.

blades, into aperipheral collecting channel 44 formed in the casing.

he material is supplied to the casing through the pipe 45 and is led to the chambers 46 and 47 therein -by the

branches

48 and 49. v

The material is fed to the pipe 45 from a gravity tank, and after being1 treated is discharged from the casing t rough the pi e 50. 7

n operation, the material to be treated is led t rough the

branch pipes

48 and 49 into n and 47 from which it passes through the

axial ducts

37 and 38.

The streams of material from these ducts impinge upon one another, and are forced outwards by centrifugal force, assisted by, the bladed portions of the members 3 and 4, in which the material is beaten, stirred and" sheared and-the state of division of the, solids therein reduced. I

The materials arethereafter ejected through the annular duct between the flanged portions 21 and 22, where a further reduction is effected, into the peripheral chamber 44, and are finally discharged through the outlet 50.

In a machine constructed as above described operating with a mixture of milk powder and water and having oppositely rotating members of 6 inches in diameter running at 3000 revolutions per minute, 3 gallons er minute of treated fluid may be obtaine with an expenditure of 3 horse power, the material being passed only once through the machine.

The end and radial clearances of the blades in the above machine were approxiof an inch while the width of the annular duct between the members external to the blades was approximately .03 of an inch. L

The solids in the treated fluid were reducedto a degree of division which showed no precipitation or sign of settling out after several weeks observation and under the microscope exhibited Brownian movements.

In some cases, we may modify the construction of the oppositely running members and arrange a greater number .of blades thereon. In Figures 4 to 7 we have shown I an example of such a modification in which a. pair of rotating members 51 and 52 have four rings of bla as 53, 54, 55, 56 and 57, 5 8, 59, 60 respectively, with sixteen blades .on

The blades in this case'are not' formed on annular projections, as in the previous examples, but directly-on the face of the oppositely rotating members. Axial are-arranged on the rotating members, for the introduction of the material.

In some cases we may modify the con:

-tion, emulsitia-ation or admixture of matef struction of the machine shown in Figure 1, and arrange asingle rotating bladed'memher only in the casing. This member is formed in .a similar mannerto those above described, the blades thereon intermeshing with correspondin blades on the casing. A narrow annular net extends outside the bladed sectio'nsbetween the rotating member and the casing," and discharges the treated material as before into a peripheral chamber.

The speed of the rotating members, the end clearance between the, intermeshing bladed sections and the form and arrangement of the blades as well as the width of the annular duct may be varied as desired, or in accordance with the materials being treated.

Although we have described our invention as operating with a mixture of milk powderand water its use is not limited to this application as it may also be used for the disintegration of china clay, barytes and other substances in the presence of a liquid and also for the emulsi'fication or intimate admixtureof two .or more liquids.

In some cases owing to the nature of the materials being treated it may be necessary to pass them two or more times through the machine to reduce them to the state of division indicated above.

When applying our invention to the emulsification or admixture of two liquids, one of the liquids may be introduced through the axial duct inone of the rotating members, in the machine illustrated in Figure 1; and the other liquid through the axial duct in the other rotatingmember.

By means of our invention the disintegrarials' may be performed in an exceedingly efficient manner and solid materials when treated along with a liquid may be reduced to a state of division approaching the colloidal so that it remains in suspension for several weeks. r

We wish it to be understood that the above examples of our invention aresimply to be regarded as typical only, and not as in any way restricting ,our invention .thereto, as modifications may be made therein without departing beyond the scope of our invention. i

We claim:

1. In a disintegrating, emulsifyin or admixing machine, a casing, relative y 'rotatable members mounted in the casm an having their. proximate faces forme with relatively spaeed blades and their edges beyond the blades defining a narrow discharge channel, the discharge channel being of less width than the space between the blades, feeding means for delivering material into the casing beyond "each of the respective "members; and means formed in said members for "delivering the material from the mixing machine, the combination of opposed casing axially of the members and adjacent material treating members each liaving a 46 their centres of rotation. blade presenting portion and an edge por- 2. In a-disintegrating, emulsifying or-adtion, said edge portions; defining between mixing machine, a casing, aligned driven them a discharge passage of less width than shafts mounted in the casing, a member the space between said blade presenting-porfixed on the inner end of each shaft, the tions, means extending through each of said 60 proximate faces of the members being members and co-axial therewith for delivformed with relatively spaced blades and beering material between the effective mate-v 10 yond such blades to define a narrow'disrial treating portions thereof, means for a c arge channel, inlets formed in each memeffecting relative rotation of one of said her adjacent to and surrounding the shaft, members with respect to the other, and a- 55 and means for delivering material to the product receiving casing enclosing the pecasin beyond the inlets of each member. ripheral o ening of said discharge passage. 3. n adisintegrating, emulsifying or ad- 6., In a disintegrating, emulsifying or admixing machine, a casing, aligned driven mixing machine, t e combination of opshafts mounte in the casing, a member posed material treating members each liav- 00 fixed on the inner end of each shaft, the ing a blade presenting portion and an edge proximate faces of the members bein portion, said edge portions defining bet-ween ormed with relatively spaced blades and bethem a discharge passage of less Width than yond such blades to define a narrow dist e space between said blade presenting por c arge channel, inlets formed in each memtions, a casing enclosing said members and 05 her adjacent to and surrounding the shaft, having a collecting channel positioned to and means for delivering material to the receive material discharged through said casing beyond the inlets of each member, discharge passage, said collecting, channel said casing being formed with a receiving having a constricted opening between a"porchannel in line with and beyond the distion of its interior-and the peripheral opencharge channel of the members, and an out in of said discharge passage. let leading from such channels. In a disintegrating, emulsifying or ad- I 4. In a disintegrating, emulsifying or admixing machine, the combination of opposed mlxing machine, the'combination of opposed material treating members each having a material treatin members each aving a. blade presenting portion and an edgeporblade presenting portion and an edge por-' tion, said edge portions defining between I tion, said edge portions defining between t em a constricted discharge passage, a I them a discharge passage of less width than shaft or each member, and a feed duct the space between said blade presenting porformed in each member adjacent to and surtions, means extending through each of said rounding the shaft thereof. members and co-axial therewith for deliver- In testimony whereof, we have signed our ing material between the effective material names to this specification this 10 day of treating portions thereof, and means for ef- July 1925. I fecting relative rotation of one of said members with respect to the other. HARRY POVEY.

5. In a, disintegrating, emulsifying or ad- HALDANE OSlVALD H LLAS.