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Патент USA US3080132

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'Mareh 5,' 1963
F. R. CORDUA
3,080,122
ATOMIZING WHEEL
Filed Sept. 30, 1960
FM
2 Sheets-Sheet 1
-
INVENTOR
122271? mam?
March 5, 1963
F. R. CORDUA
3,080,122
ATOMIZING WHEEL
Filed’ Sept. 30. 1960
"
2 Sheets-Sheet 2
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United States Patent Office
1
3,080,122
ATOMIZING WHEEL
Fred R. Cordua, Havre de Grace, Md., asignor to J. M.
Huber Corporation, Borger, Tex., a corporation of
New Jersey
FiledSept. 30, 1960, Ser. No. 59,607
4 Claims. (Cl. 239—224)
3,080,122
Patented Mar. 5, 1963
2
body 16 parallel to the face 17 and having a diameter
substantially smaller than that of the face 17. A con~
cave frusto-conical surface 19 sloping generally down
wardly and outwardly connects the peripheral edges of
the faces 17 and 18 as can be best seen in FIGURE 4.
The hub 11 including the lower end 15 and the body 16
is formed integrally of easily machined metal. A plu
rality of circumferentially equispaced threaded bores 20
is formed in the body 16 opening through the lower
The present invention relates to an atomizin-g wheel
10 'face 17 thereof. The bores 20 are arranged with their
and particularly to a wear-resistant wheel.
axes equispaced outwardly of and parallel to the axis of
In modern atom-izing practices, the material to be dried
the bore '12.
is suspended in a water slurry and is fed onto an atomiz
A flat disk 21 formed of abrasive-resisting hardened
ing wheel turning at a high rate of speed. The material
metal
is provided with an axial bore 22 to permit the
engages a plurality of atomizing pins positioned about
cylindrical lower portion 15' of the hub 11 to extend
the perimeter of the wheel and is atomized hereby for
therethrough. The ‘disk 21 has a plurality of bores 23
contact with a current of gas. The material suspended
arranged
therein for aligned relation to the bores 20 of
in the water slurry has an abrasive action on the atomiz
the body 16. A plurality of cap screws 24 extends
ing wheel, brought about by the inherent abrasiveness of
through the bores 23 into the bores 20‘ to detachably
the material and the shearing forces resulting from the
secure the disk 21 to the hub 11.
high rate of rotation of the wheel. In prior art struc
A ?at annular ring 25 is positioned beneath the outer
tures the atomizing wheels have had an extremely short
edges of the disk 21 and is detachably secured thereto
life and a high replacement cost such as to materially
by a plurality of cap screws 26 arranged in equispaced
reduce the effectiveness of the atomizer as an economic
relation thereabout. The ring 25 is ‘formed of easily ma
apparatus.
chined material similar to the hub v11. The disk 21 is pro
The primary obg'ect of the invention is to provide an
atomizing wheel having relatively inexpensive replace
able wear surfaces positioned in the areas of maximum
wear of the wheel.
vided with a plurality of circumferentially equispaced
bores 27 arranged in closely spaced relation to the outer
edge of the disk 21.
The axes of the bores 27 lie on a
circle concentric ‘with the bore 12. The ring 25 under
Another object of the invention is to provide an atom
izing wheel formed of a plurality of demountable ele 30 lies the bores 27 and is provided with a bore 28 axially
aligned with each bore 27 in the disk 21. The bores 28
ments such as to permit inexpensive replacement of worn
are ‘substantially smaller than the bores 27 as is clearly
elements when necessary.
shown in FIGURE 4.
A ‘further object of the invention is to provide an
A tubular atomizing pin 29‘ has its lower end seated
atomizing wheel having replaceable wear surface elements
‘formed with a minimum of machining to ensure the low 35 in each of the bores 27 supported by the ring 25. An
annular plate 30 is supported on the upper ends of the
est possible cost of manufacture.
pins 29 and has a downwardly and outwardly sloping
A still further object of the invention is to provide
axial aperture 31 formed therein. The aperture 31 is
an atomizing wheel having replaceable wear surface ele
ments formed of hardened abrasive-resistant materials to 40 substantially larger than the bore 22 in the disk 21.
An annular wear plate 32 is positioned in engage‘
increase the effective life of the wheel.
ment with the underside of the plate 30 and has an axial
An object of the invention is to provide a structure
bore 33 ‘formed therein slightly larger than the aper
of the class described ‘above in which the replaceable
ture 31. The wear plate 32 has a plurality of bores 34
Wear ‘surface elements can be inverted to increase the
formed therein to receive the upper ends of the pins 29.
over-all service of the elements prior to replacement.
‘Other objects and advantages will become apparent in 45 A plurality of bevel-head screws 35 secure the annular
plate 30 and the annular wear plate 32 together. The
the following speci?cation when considered in light of
annular plate 30 has a countersunk bore 36 arranged
the attached drawings in which:
therein axially of each of the bores 34 in the wear plate
FIGURE 1 is a side elevation of the atomizer wheel;
32 and somewhat smaller than the bores 34.
FIGURE 2 is a top plan view of the wheel as viewed
A bevel-headed bolt 37 extends through the annular
from the line 2—-2 of FIGURE 1 looking in the direc 50
plate 30, through each of the tubular pins 29 and through
tion of the arrows;
the annular ring 25. A nut 38 is mounted on each of
FIGURE 3 is a bottom plan view of the wheel as
the bolts 37 to lock the disk 21, ring 25, plate 30, wear
viewed from the line 3-3 of FIGURE 1 looking in the
direction of the arrows; and
plate 32, and the pins 29 into a rigid operating unit. The
FIGURE 4 is a vertical sectional view taken on the 55 plate 30 is formed of easily machined material similar to
line 4-4 of FIGURE 2 looking in the direction of the
arrows.
Referring now to the drawings in detail wherein like
?gures, the reference numeral 10 indicates generally an
atomizer wheel constructed in accordance with the in
vention.
ring 25, and wear plate 32 is formed of abrasion-resist
ing hardened material similar to the disk 21. The tubu~
lar pins 29 are also formed of material similar to the disk
21 and wear plate 32.
In the use and operation of the invention, the abrasive
wear on the wheel 10 occurs chie?y in the area adjacent
the opposite ends of the pins 29. The disk 21 and wear
plate
32 being formed of hardened material will wear
tical bore 12 extending therethrough. A rectangular key
much more slowly in these areas than will conventional
way 13 is formed in the bore 12 and is coextensive there
with. The hub 11 is adapted for mounting on a drive 65 materials. In addition to wearing more slowly, the disk
21 and plate 32 are each identical top and bottom so that
shaft 14 shown in broken lines in FIGURES 1 and 4.
they may be inverted after wearing on one side to provide
The hub 11 has a generally cylindrical lower portion
additional wear on the opposite side.
15 and a radially outwardly extending body 16 integral
ly formed on the upper end thereof. The body 16 has 70 The disk 21 and wear plate 32 are each of a ?at annular
form and can be produced without resorting to expensive
a flat lower face 17 extending perpendicularly to the axis
machining or other costly fabricating processes, The hub
of the bore 12. An upper face 18 is formed on the
The wheel 10 includes a hub 11 having an axial ver
3
3,080,122
4
11, while requiring machining to produce, receives prac
lying said disk, a plurality of tubular atomizing pins ex
tending between said disk and said wear plate adjacent
the outer edges thereof, an annular ?at ring underlying
said disk adjacent the outer edge thereof, an annular ?at
tically none of the wear and is formed of relatively in
expensive easily machined material. The hub 11 will out
last a great number of disks 21 and wear plates 32 so that
the cost of wheel replacement is materially reduced by
following the teachings of the invention described above.
plate overlying said wear plate adjacent the outer edge
thereof, means detachably connecting said annular ?at
Having thus described the preferred embodiment of
plate and said wear plate and a plurality of bolts extend
the invention, it should be understood that numerous
ing through and detachably securing said annular plate,
structural modi?cations and adaptations may be resorted
said wear plate, said pins, said disk and said ring rigidly
to without departing from the scope of the appended 10 together, said disk, said wear plate and said tubular pins
claims.
being formed of hardened abrasion-resisting metal.
I claim:
4. An atomizing wheel for atomizers comprising a
1. An atomizing wheel for atomizers comprising a
central hub having an axial bore therein, a plurality of
central hub, a flat disk detachably secured to said hub
tubular atomizing pins arranged in circumferentially
and extending radially outwardly therefrom, an annular
equispaced relation in equispaced parallel relation to the
?at wear plate arranged in spaced apart parallel relation
axis of said bore, a ?at disk detachably secured to said
overlying said disk, a plurality of tubular atomizing pins
hub in perpendicular relation to the axis of said bore,
extending between said disk and said wear plate adjacent
said disk having a plurality of bores receiving the lower
the outer edges thereof, an annular flat ring underlying
end portions of said pins, a ?at wear plate arranged in
said disk adjacent the outer edge thereof, an annular ?at 20 spaced parallel relation to said disk and having a plural
plate overlying said Wear plate adjacent the outer edge
ity of bores receiving the upper end portions of said pins,
thereof, means detachably Connecting said annular ?at
a ring detachably secured to said disk underlying said
plate and said wear plate and a plurality of bolts extend
pins, an annular plate detachably secured to said wear
ing through and detachably securing said annular plate,
plate overlying said pins, and means extending through
said wear plate, said pins, said disk and said ring rigidly 25 and detachably rigidly securing together said annular
together.
plate, said wear plate, each of said pins, said disk and
2. An atomizing wheel for atomizers comprising a
said ring, said disk, said wear plate and said tubular pins
central hub having an axial bore therein, a plurality of
being formed of hardened abrasion-resisting metal.
tubular atomizing pins arranged in circumferentially
equispaced relation in equispaced parallel relation to the 30
axis of said bore, a flat disk detachably secured to said
hub in perpendicular relation to the axis of said bore, said
disk having a plurality of bores receiving the lower end
portions of said pins, a ?at wear plate arranged in spaced
parallel relation to said disk and having a plurality of 35
bores receiving the upper end portions of said pins, a
1,190,386
1,659,683
1,897,744
1,969,545
Dickerson ___________ __ July 11,
Dougan _____________ __ Feb. 21,
Wilkins ______________ __ Feb. 14,
Bollard ______________ _._ Aug. 7,
ring detachably secured to said disk underlying said pins,
2,406,532
Tahrenwald __________ __ Aug. 27,
an annular plate detachably secured to said wear plate
2,693,877
2,706,108
Drake ________________ __ Nov, 9,
Miner _______________ __ Apr. 12,
Epprecht _____________ __ May 1,
overlying said pins, and means extending through and
detachably rigidly securing together said annular plate,
said wear plate, each of said pins, said disk and said ring.
3. An atomizing wheel for atomizers comprising a cen
tral hub, a ?at disk detachably secured to said hub and
40
extending radially outwardly therefrom, an annular ?at
Wear plate arranged in spaced apart parallel relation over 45
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,743,914
2,920,830
Nyrop etv al ___________ __ Jan. 12,
1916
1928
1933
1934
1946
1954
1955
1956
1960
FOREIGN PATENTS
520,347
Italy ________________ __ Mar. 21, 1955
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