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Патент USA US2108160

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Feb. 15, 193s.
w. A. BEAUDRY
CRUSHING MILL
Filed Nov. 9, 1955 l
- 2,108,150 ~
_
-2 sheets-sheet 1
Inventor
A fior nay
Peb. .15, 193s.
2,108,160
w. A. ,BEAUDRY l
CRUSHING MILL
`
Filed NOV. 9, 1955
WV,
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Attdrney
~Patented Feb. 15j, 1,9387
awaits
carissimo
william a. non', Welnee, tutti@
Application .November il, "i935, Seriell Nm 49,@45
(Cl. dit-ll)
li/ly present invention relates t o improvements
‘
»
tionyvvitloin the scope of my claims, Without @le
parting from the principles of the invention.
in crushing mills oi the rotary, horizontal asis
Figure 1 is a sldeelevation oi a crushing rni‘ll
type, having an axial feed mechanism ’oy means l embodying my invention.
Figure 2 is a longitudinal vertical sectional
of which a continuous or c onstant flow of Wet
Ul
is uniformly maintained at the full ca
paclty oi' the mill; and l also provi de a novel ar»
rangement ot parts Within the 'drum to control
the discharge of pulverized m aterlals from the
View through the operating parts of the mill, the
hase or foundation being omitted for convenience
"l'iie mill of the pres ent invention is of that type
illustrated in my pending application lor patent
ser. No. 13,396, nieu Maren so, i935, and trie pres
the rotary laat. "
‘ ent invention involves im movements
which. in.
crease the eñìciency or” mills of vthis
' improvements, in ad dition to the :leed
auisro at the adit end o i the rotary drum, and the
means for controlling discharige at the eirlt end
of the drum; also includer in cans for preventing
loss or waste of material from tire drum, as 'well
as means for rendering more durable the rotor
which operates Within
While the mill oi my invention is especially ole
signed for pulverlzing or e in the forni oi’ vret
pulp, it will be understood tliat other materials
so he treated in this manner.
N) Ui
the wet pulp thus treated, partially pre
pared rock-ore or mineral rock, together with
of illustration.
,
"
_
Figure 3 is ‘a sectional detail in perspective of
,
Figure Il a detail sectional view through the
feed trough at line
of Figure@
Figure ¿ist is a detail, sectional ‘View through
the »said trough support at line ila-_da of Fg»
ure i2..
f
Figure 5- is a detail perspective view ofthe leed
trough.
l)
.
The rotary drum, which .is or cylindrical strane
and designated as El is provided with an external
pear ring l2 that is engaged by a suitable comple» l,
rnentary
and the cylindrical
drive-gear, drum
to slowly
is fashioned
revolve the
with 'tile
usual tapered. ends or heads and t. The needs
ofthe drum are provided with trunnions and t
rigidly fixed thereto in sultalole manner, and the
larger trunnion li, which torina the discharge end
of the drum is journaled in hearings l' supported
on the frame t, which in. turn is supported on a
water to form the pulp is fed to the drum of the 'cross beam t and sills lll.
"i'lie smaller trunnion il, forming the intuire or j
mill, and the ore is reduce d to a ?lneness suitable '
tor, and at the same
30 for feed to a mineral s classiiied at the discharge
time the reduced ore is
leed-.end oi’ 'the mili is journaled in hearing il
Ymounted, on the frame-plate ill, 'which is also
end of the drum.
After the wet pnlp is fed to the interior oí the
the material is ilrst elevated and tlneny per
muted to m11 freely in a .perpendicular shower
supported on a cross beam lil and the sills ill.
of a high-speed rotary or
material is ted by gravity to the trough from an ,
The Wet-pulp is ted to the intake end of the»
drum by means of an oscillating feed trough lil
that is disposed at the longitudinal axis of the
drum into thepath ` rotary drum, in slightly inclinedA position'. The
A'veritnin the low-speed rotary
revolving bat, by means
oi; `which the material in the falling shower" or
or violently tossed
screen is continuously ha
11s
of
the drum. Both
against the encl
elevated hopper l5, and thejtrough is jolted and
caused to reciprocate beneath the open mouth 40
or lower end of the hopper so that the material
the impact oi’ the bat against the material, and may -be fed in a constant and uniform stream
the impact of the hatt ed material against the through'the trough and deposited Within the ro-vv
in breaking up, tary drum.
'
`
.
Wall of the drum, are e flectlve
/
»
The trough is supported with its delivery end 45
crushing.r or pulverizing the material.
within the intake trunnion, by means lof a pair
Means are provided whereby the`
duced, material is~ free- för discharge from the of spaced webs it, it rigid with the frame plate
_ drum, while, the heavier or coarser materi
' " restrained or. conñned'in the drum until it vis
,l
""
properly reduced for disc harge from the drum.
' these' webs terminate in guide tubes il which 50
ture for accomplish
trated one exemplifying s
“ ing the results above _set fox‘th, but it will be un
These side bars i8 slide' or reciprocate in the \
forni»stationary> supports 'for the side bars it.
in the accompanying drawings I have iliu’s- "
derstood that changes and alteratio
55 made in the physical e bodiment of i'ny inven
,
l2 and located at opposite sides of the longitudi
nal axis ot" the drum, and the upper edges of
I
,
,
tubular guides, and the slide bars are rìgidlycon
vnected to theexterior Vof the trough -by means or g
perforated lugs I9, and lock nuts 20, the lugs be
2
ing integral with the trough. The- slightly in
clined trough is reciprocated longitudinally of the
drum, as by jolts, due to the successive actions
with the outer edges o! the plates of a pair
joined rigidly by longitudinally extending wear
strips or bars I9, d_ovetailed at 40 to the adjoin
oi' four cams 2| fashioned in suitable manner at
the o_uter end of the intake trunnion, which cams
operate as the rotary ydrum revolves. 'I'hese
ing edges of a pair of plates. ' This cruciiorm ar
rangement of the vanes provides exterior grooves
in the bat that perform -the 'functions of buck'ets
to catch the falling material, and the> ends oi'
cams co-act with a complementary cam bar or
plunger 22, which has a cam-head 22 in engage
ment with the cams,_and the plunger is support
10
these grooves or buckets are closed by circular
heads-4|, rigid with the vanes, to prevent dis
placement of the material from the ends of the 10
buckets. '
‘
ed beneath the trough, at its longitudinal cen
ter in a perforated ear or lug 24 rigid with the
bottom of the trough, in such/»manner that the
` y'I'he central bar 38 is provided with- journal
plunger or bumper bar moves with the recipro
cating trough.v
15
»
_
ends 42 that project through the upper portions.
of the hollow trunnions 5 and 3 from the inte
rior of the drum, and these journal endsare sup-l 15
ported in bearings 43 exterior of the drum bear
ings. The rotary bat, as illustrated, is located
above the longitudinal axis o1' the rotary drum',
y
At its outer end _this cam-bar projects freely
through a hole in the inner end of a rectangular
yoke 25 rigidly supported between the two webs,
I6 of the frame plate I 2, beneath‘the trough, and
» on the projected end of the bar, within the rec-`
20 tangular yoke, is a washer 26 retained by a cot
and it is driven in suitable manner, at a speed
greatly in excess of the _rotary movement of the 20
ter pin 21. Between the inner end of the fixed or
stationary yoke, an'd an adjustable washer 28
threaded on the cam bar, is interposed a spring
29 that is coiled about the cam bar, and this'25 spring which holds the cam head against the.
cams, also provides resilient means for forcing the
trough on its inner stroke inwardly of the trun
nion after the cam- actionv has caused the out
stroke of the trough.
drum so that the successive -streams of material
falling fromfthe topV of the low-speed drum will
each be batted by a vane of the rotary batf.
. 'I’he impact of the falling solids on the bat. _
may to some extent, break-up some ci'v the solids,
but the main crushing action, or reduction o1' the
solids takes place when the 'successive vanes of
the rotating bat toss the solids laterally, across
the
interior of the drum, against the wall of the
lThe inner end of the yoke thus supports the_
cam bar, and the outer end of the yoke supports rotarydrum.
Within the interior of the ' charge
' head 4 30
the free end of» an adjusting bolt Alil alined' with
the cambar, which bolt is threaded into >the of the drum is ñxed a deflecting ng A44 attached
yoke and journaleìi as well as supported in a ` to the inner face o_f this head and arranged con
35 perforated lug 3| aimed with the lug 24 and in \ _hcentrically about the discharge- trunnion with
tegral -with the underside of the trough. Be- _ the inner periphery of the ring moving in a path
tween the journaled end ofthe bolt and the yoke above the periphery of one oi' the retaining heads
an adjusting nut 32 is threaded, and a cushion of the rotaryv bat. Thus, as the d'eñecting ring
washer or bumper 3l is also mounted on the bolt ~ moves with the drum,l any material falling ’on
the defiecting ring is guided or deflected onto the
40 adjacent the lug 3|, and the bolt .is fashioned
with >a head 34 exterior of the lug Il.A By means
of the bolt-which is adjustable with relation to
the stationary yoke, and the'adjusting nut 22 on
the bolt, the length of the stroke of the trough _
45 may be adjusted or varied _to suit different condi- '
tions, and the movement of the trough maybe
adjusted to prevent lost motion.
This reciprocating movementoi the trough dis
lodges the material from the superimposed hop
’ ` per and the material is i'ed in a constant stream
50
through the intake trunnion to the interior 'of
the drum, where it is picked up, and dropped in a
shower or screen by the successive buckets I5
rotary bat. This ring also prevents splashing'of ' 40
water through _the outlet or discharge trunnion~
of the drum.
'
‘
'
To control the outflow or discharge o! the wet
pulp through the discharge trunnion I employ .a
circular bame plate 45, which is suspended loosely
on one of the journal ends of the rotary bat with
in the defiecting ring 44 and located between the
ring and the discharge‘opening‘ of the head 4.
This 4is anon-rotary baille plate, and its lower
end, which is submerged below the water line
W L and below the lower 'part of the open ’dis
charge trunnion, is provided with a weighted por
lining the cylindrical portion of the rotary drum. tion 4l, that-maintains the baille plate in its sus
pended position on the journal of‘the rotary bat.
At the inner end of the intake trunnion the head In
'this position, the baille plate prevents dis- 55
'
3 oi' the drum is formed with an annular iisnge charge of material at the
water'line through the
38 which is countersunk at its `trunnion-side to
guide the iniiowing material, and at the drum .fdischarge trunnion, and the plate causes the wet-_ '
side of this ñange the inner face of the head 3 is pulp to discharge, indirectly, from the drum, un
der the plate and over the deiiecting ring into the
slightly dished for the purpose of guiding the discharge
trunnion.
~
falling material, or, screen, away from the intake
This arrangement oi' the badje plate and de-_
The constant feed of ~material maintains the ilecting ling causing an indirect discharge from
level of the wet pulp at the line W- L in Figure 2, the drum insures that the material crushed or
and the4 successive _buckets 35 being submerged pulvelized and floating at or nearthe water line.
and passing through the pulp,'pick up the m'a ' must -pass out underneath the bame plate, and all 65
trunnion.
_
'
terial and then drop the material in a shower or
screen.
_
'
_
' In the path of the stream of falling material,
70 which of course includes solids. is located a ro
tary batlocated in horizontal position above the
waterlevel W L. As best- seen in'l'igure'a the
rotary bat is of crucitorm shape in cross section
coarser material will be retained within the drum
by the ~baille plate. Only that material _which
has-been reduced to such nneness as to float-_
freely in the water and be carried away by the
outflow of water is thus _discharged from the
drum. 'lhus the ground or reduced- material'is
classined, the ilnes being discharged, and the
coarse material being retained within the drum
and the four vanes are made up of pairs of angu- _ until
suiiiciently reduced.
lar plates 31 mounted rigidly on a central'bar Il,
' ` Having thus fully described my invent-ion, what 75
f"
2,108,160
l
I claim as new and desireto -secure by Letters
3. The'- combination in a crushing mill of the
horizontal axisv'type having tapering heads and
Patent
trunnions therein. of an annular ilange surround- »
isz-
v
.
1. In a crushing mill of the horizontal axis
ing the intake trunnion and adapted to deiiect
type.' the combination with a rotary drum having
a discharge trunnion and a fluid level for wet
pulp extending through the trunnion and a ro
a shaft extending through the
tary bat having
trunnion, of a stationary baille plate mounted on
said Journal between the bat and said trunnion,
falling material toward the center of the drum,
and said plate having a weighted lower _portio
submerged _below the water level.
-
.
an annular deilecting ring concentrated with the
`
discharge trunnion and mounted on one of said
bat mounted within the drum
between said .flange and ring and a stationary
baille plate vmounted between said ring land' dis
charge trunnion.
,
,
4. The combination in a crushing mili with a
2. The combination with arotary drum having Vrotary drum, of a. rotary bat therein, said bat .
a discharge trunnion and a iluid level extending being of cruciform shape in cross section and
through the trunnion, a rotary bat in the drum. comprising angular plates forming grooves', said
and a shaft therefore extending throughv the :plates arranged in pairs, the adjoiningedges of
trunnion, of a deñecting ring mounted in the
veach pair of plates having a wear-bar and means
drum concentric with the trunnion and partially for fastening said bar to said adjoining edges, and
submerged below the water level, aestationary said bat having circular heads at its opposite f20
baille plate mounted on the `journal within the` ` ends forming end walls for the grooves.
WM. A. BEAUDRY..
ring, and said- plate having a weighted lower portion submerged below the water level.
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