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Патент USA US3070252

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Dec. 25, 1962
F. A. BERCZYNSKI
3,070,242 '
DISTRIBUTOR SEAL
Filed Nov. 17, 1960
2 Sheets-v-Sheet 1
wiymvl.
"1.9
i6
37
37
73
Dec. 25, 1962
F. A. BERCZYNSKI
3,070,242
DISTRIBUTOR SEAL
Filed Nov. 17, 1960
I
2 Sheets-Sheet 2 -
52mm 121W
United States Patent O?ice
1
3,070,242
Patented Dec. 25, 1962
2
vide a simple and inexpensive means for obtaining a ?uid
tight seal about the top lock and the distributor that
empties into that lock. One of the principal features
of my invention is that it may be readily installed on
3,070,242
DISTRIBUTOR SEAL
Frank A. Berczyuslri, 216 W. Rust Trail,
Willow Springs, Ill.
Filed Nov. 17, 196i), Ser. No. ‘79,046
existing furnaces in place of the usual packing gland
without extensive modi?cation of the existing structure
7 Claims. (4C1. 214-36)
The present invention relates to an apparatus for at
and with a relatively nominal cost or expense. It is not
necessary to add a new hell operating mechanism since
taining a seal about the distributor hopper employed in
the device I have devised can be operated by the same
10 mechanism presently used to operate the bell at the bot
the top of a blast furna:e or the like.
tom of the distributor.
In a blast furnace the charging of the furnace is ac—
A further object and advantage of my invention is that
a better seal is obtained at the top of the ?rst lock than
can be obtained by the present practices. There is no
tween the interior and the exterior of the furnace. As a
relative rotation between the bell at the bottom of the
result the materials with which the furnace is to be
charged are introduced through one or more air locks
distributor and the distributor, when the distributor is
intentionally rotated, which otherwise results in a wear
formed by enclosures, the top and bottom of which are
of these parts and a necessary periodic replacement of
opened and closed by doors. In the industry these doors
the parts. The bell at the bottom of the distributor is
are commonly termed “bells.”
The uppermost of these hoppers usually has an open 20 permitted to rotate with the distributor. At the same
time there is a ?xed bell at the top'of the uppermost lock,
top into which the charge is directly emptied. There
into which the distributor empties, to provide a positive
after, the door or bell at the bottom of the uppermost
seal for this lock.
hopper is opened by the lowering of the bell so that the
While two bells are employed between the distributor
charge falls into the uppermost enclosure or look. After
reclosing the bell, the bell at the bottom of the upper 25 and the uppermost lock the seating of these bells is pro
vided by the same operating mechanism conventionally
most lock is lowered to allow the charge to further de~
employed. However, through the use of my invention no
scznd towards the furnace. The number of locks em
complished through a hopper located in the top of the
furnace. Normally there is a pressure differential be;
accurate or exacting positional adjustment of one hell
with respect to the other is required in order to obtain
Just how many locks are employed is determined by the 30 the desired positive ?uid seals. The apparatus is self
compensating so that the two bells will each positively
preferences of the user and is unimportant as far as the
close even though an exact positioning thereof is not ob
present invention is concerned.
tamed: This is an important object and advantage of my
The uppermost hopper into which the charge is initially
ployed is usually designated in terms of the number of
“bells,” i.e. a “two bell” furnace or a “three bell” furnace.
placed normally is rotatably mounted and provided with
invention.
a power means so that it can be rotated as desired. The
Further objects and advantages will become apparent
from the following description taken in conjunction with
purpose of this is to evenly d'stribute the charge about
all sides of the uppermost hopper so that as the charge is
the drawings in which:
FIGURE 1 is a sectional e‘evational view of an em
delivered to the furnace as previously'described, all por
tions of the furnace will be charged to the same extent.
bod’ment of the invention; and
Such a rotating hopper is commonly termed a “distrib
utor.”
Since the distributor forms the top of the uppermost
embodiment of the'invention.
FIGURE 1 illustrates a distribution hopper generally
lock it is necessary that a ?uid seal be used about the
distributor so that it may be rotated. If it Were mounted
tween hopper 11 and the furnace are one or more locks.
FIGURE 2 is a sectional elevational view of a second
11 which is mounted over the top of a blast furnace. Be
for ro'a'icn without a seal being provided, the enclosure 45 A portion of the uppermost enclosure, generally 12,
which forms the uppermost lock is i‘lustrated. The ma:
immediately below the distributor would be open to at
mosphere about the sides of the distributor and would
terial, e.g. ore, coke, etc., with which the furnace is to
becharged is deposited in hopper 11 by a suitable means,
not shown. Hopper 11 is rotated to evenly distribute the
use packing rings or sealing rings about the periphery of
the distributor so" as to provide a ?uid seal between the 50 charge about all sides of the hopper. Subsequently, this
material is lowered through the locks and deposited in
rotating distributor and the walls of the enclosure imme
the furnace.
'
dia‘ely there below. For example, see Patent No. 1,891,—
An annular ring gear 13 is attached to hopper 11.
821.
not serve as'a “lotk.”
The usual practice has been to
Distributors of the type to which reference is made are
Gear 13 has teeth 14 which mesh with the teeth on a
quite large. For example, many of those presently in use 55 spur gear 15. A power means generally 16 drives a shaft
are about 8 feet in diameter and these are not the largest
by any means. Thus, a large packing ring is required to
obtain a ?uid tight seal about such a distributor.
The
very size creates problems in obtaining a satisfactory
17 on which spur gear 15 is mounted.
Gear 13 and hopper 11 are supported on a plurality
of rollers 19. Rollers 19 are af?xed to shafts 20 suitably
iournaled in bearings 21. A Wear ring 22 is secured to
seal. As is the case with respect to all seals about rotat 60 the bottom of ring gear 13 and rides on rollers 19. Gear
13 has an upper annular face 23 which rides against a
ing members, they are subject to wear and periodically
must be replaced. This is aggravated in the case of equip
ment on blast furnaces by the fact that the air or gas will
be laden with abrasive dust. The direction of the pres
plurality of upper rollers 24. Rollers 24 are secured to
shafts 25 journalled in bearings 26. Immediately above
and below teeth 14 are cylindrical faces 27 and 28. A
sure differential in the lock of which the seal forms a 65 plurality of side thrust rollers are used to center gear 13
part is such that this abrasive dust is carried into the seal
on rollers 19 and 24. Each thrust roller has a pair of
by the fluid, air or gas, seeking to work its way up
rims 29 and 30‘ which bear against faces 27 and 28 re
through the seal. The cost and di?iculty of replacement
spectively of gear 13.
of these large seals is a signi?cant factor to a steel mill
each roller is shaped so as to clear the teeth 14.
operator.
side thrust roller is secured to a shaft 33 journaled in
A principal object of the present invention is to pro
bearings 34.
The intermediate portion 31 of
Each
3,070,242
4
9
a)
At the bottom of hopper 11 is a ring 36 which forms a
seat 37. A bell 38 forms a closure for the bottom of
the hopper and is of a truncated conical shape so as to
contact all portions of the circular seat 37. Bell 38 rests
on bosses 39 of outer sleeve 40. A wear plate 41 ?ts
about the upper half of bell 38 and a plurality of Wear
rings 42 surround sleeve 40. A bearing 43 is secured
to the bottom end of bosses 39 by means of bolts 44
The upper end of outer sleeve 40 forms a ?ange 47.
Flange 47 rests on the top of a thrust bearing 48. Bear
ing 48 in turn is supported on an annular support mem
ber 49. This mounting permits the outer sleeve 40 to be
Normally, the bells 38 and 63 and the sleeves 40 and
61 as well as some of the other parts, e.g. wear plate 41
will be made in two parts to facilitate their assembly into
the ?nished structure. When so constructed the parts will
be provided with suitable fasteners, e.g. bolts so that they
may be secured together. Since this is a standard practice
in the industry, it has not been illustrated or described in
detail.
FIGURE 2 illustrates an alternative embodiment in
which the hopper or distributor 11 and the enclosure 12
is identical with the structure described in connection
with FIGURE 1. The lifting rods 50 and the support
member 49 to which they are connected are the same.
carried on support member 49‘ while at the same time
Arm 51 is used to prevent rotation of support member
permits the sleeve and bell 38 to rotate with respect to the
49 as it was in FIGURE 1. Lifting rod 68 for the bot
support member. A plurality of support rods 50 are at
tom hell, not shown, of enclosure 12 ‘is employed as in
tached to member 49 and lead to the overhead mechanism
FIGURE 1.
(not shown) for raising and lowering the bells. An arm
Surrounding rod 68 is a sleeve 80 having a ?ange 81
51 pivotally secured to support member 49 by a pin 52
on the top thereof. Bolts 82 attach ?ange 81 and top
acts to prevent rotation of the support member. Arm 51
rests in a two sided slot 53 in a portion 54 of the frame 20 bearing 83 to support member 49. Bearing 83 has a plu
rality of .seals 84.
of the structure so that at all vertical positions of sup
A sealing bell 86 is mounted on sleeve 80 between the
port member 49 the arm 51 will prevent it from rotating.
upper annular boss 87 and lower bosses 88. Bolts 89
A cup 57 is secured to support member 49‘ by bolts 58.
Qup 57 extends about the top of ?ange 47 and forms
attach bottom bearing 90 to bosses 88. Sealing bell 86
a platform on which a compression spring 59 is supported. 25 has a truncated conical vface 91 which contacts seat 74
of sealing member 73 toform a ?uid tight seal at the top
The upper end of spring 59 bears against a ?ange 60- of
of enclosure 12.
an inner sleeve 61.
Distributor bell 93 is of generally truncated ‘conical
A sealing bell 63 is mounted between an upper an
con?guration ‘and ?ts against seat 37 of sealing ring 36 to
nular boss 64 and lower bosses 65 on sleeve 61. A
bearing 66 is secured to lower bosses 65 by means of 'SU close the bottom of distributor 11. The upper portion
94 of hell 93 is of generally cylindrical con?guration and
bolts 67. Bearing 66 guides inner sleeve 61 on a rod
has an inner lip 95 which rests on a bearing 96. In turn,
68. An upper bearing 69 having a plurality of seals 70
bearing‘96 rides on a ?ange 97 of a traveler 98. Traveler
is bolted to ?ange 60 by bolt 71. Bearing 69 likewise
98, as well as the portion of the exterior of sleeve v80 about
serves as a guide about rod 68 for inner sleeve 61. It
might be mentioned that the lower end of rod 68 is con- ' which the traveler ?ts, are splined as seen at 99. The
splines permit traveler >98 to move vertically with respect
nected to the bell, not shown, .at the bottom of enclosure
to sleeve 80 while at the same time preventing any rota
12 and operating means, not shown, for that bell is con
tion of the traveler about the sleeve. A spring 100 is .in
nected to the upper end of rod 68.
compression between ?ange 97 of traveler 98 and a ?ange
An annular sealing member 73 de?nes a truncated
conical seat for bell 63. Sealing member 73 is secured 40 101 on sleeve 80.
Encircling the upper part of hell 93 is a wear plate
to the bottom of ring 75 which de?nes the upper end of
104, the upper end 105 of which is annular in shape.
enclosure 12. When bell 63 is seated against member
An umbrella generally 106 has an inner cylindrical wall
73 as illustrated in FIGUIE 1, a ?uid tight seal is main
107 and an outer cylindrical wall 108 which de?nes a
tained about the top of enclosure 12. The bell, not
generally annular recess 109 therebetween. Inner wall
shown, which is attached to rod 68 forms a similar sea]
107 rests against a ?ange 110 on sleeve 80. It will be
at the bottom of enclosure 12 so that enclosure 12 will
apparent that the upper portion 105 of wear plate 104
function as a lock.
The charge for the furnace is deposited into hopper
11 which functions as a distributor.
Power means 16
is free to move vertically within recess 109. At the same
time, the umbrella 106 prevents the charge that is put
into hopper 11 from falling between the wear plate 104
and the sleeve 80. .A plurality of wear rings 42 are used
about sleeve 80 above ‘umbrella 106.
‘In the embodiment of FIGURE 2, the charge is
supported on the bearing 48 by means of outer sleeve 40.
deposited in hopper 11 when the bells are in the position
However, sealing bell 63 does not rotate but remains in
a single sealing position against seat 74 so that the lock
illustrated in that ?gure. The bells of course are held
de?ned by enclosure 12 (or at least the upper end of 55 in this position by suitable apparatus connected to the
that lock) remains ?uid tight.
upper ends of rods 50. As hopper 11 is rotated by power
When the charge in hopper 11 is to be deposited in
means 16 to distribute the charge in the hopper, bell 93
the enclosure 12, rods 59 are lowered. As rods 50 com
is free to rotate about sleeve 80 because of its being ‘sup
mence their downward movement, bell 38 immediately
ported on bearing 96. However, bell 86, sleeve 80 and
moves away from seat 37 and compression spring 59 is 60 support member 49 all will be restrained against rotation
allowed to expand. As soon as compression spring 59
by arm 51. When the charge is to be deposited in en
reaches the limit of its expansion, which will of course
closure 12, rods 50 are lowered. Since bell 86 is di
be governed by the loading thereon, sealing bell 63 also
rectly attached to rods 50 through sleeve 80 and support
commences moving away from its seat 74. With both
member 49 the initial downward movement will open bell
65
bells 38 and 63 moved away from their seats, the charge
86 with compression spring 100 expanding at the same
in hopper 11 is free to fall into enclosure 12. After all
time. As soon as the compression of spring 100 has
of the charge has been transferred to enclosure 12, rods
been relieved su?iciently, bell 93 also will commence
50 are moved upwardly. Initially, sealing bell 63 will
to open allowing the charge to descend from hopper 11
contact seat 74, thereafter continued upward movement
of rods 50 results in compression of spring 59 until bell 70 into enclosure 12. Thereafter, rods 50 are raised to close
the bells. Initially, bell 93 will seat against ring 36.
38 reaches seat 37. At this point, the upward move
Further upward movement of rods 50 will result in a
ment of rods 50 is stopped. Of course, as is the usual
compression of spring 100 until bell 86 seats against seal
practice, the rod 68 will be lowered subsequently to open
the bell at the bottom of enclosure 12 to allow the charge
ing member 73. At this time, the upward movement of
to proceed toward the interior of the furnace.
rods 50 is stopped. Bell 86 now provides a ?uid tight
is energized to rotate hopper 11 and evenly distribute
the charge about all sides of the hopper. As hopper 11
rotates, bell 38 is free to rotate with it since bell 38 is
3,070,242
6
said support means and said sleeve resiliently urging said
bells apart; and lifting rods attached to said sleeve:
seal about the top of enclosure 12 while bell 93 closes the
bottom of hopper 11.
The foregoing description of speci?c embodiments is
4. In a blast furnace having a rotating distribution
for the purpose of complying with 35 USC 112 and
should not be construed as imposing unnecessary limita
tions on the appended claims inasmuch as modi?cations
and variations thereof will be apparent to those skilled in
the art. For example, the resilient means described in the
two embodiments comprise a single compression spring,
hopper for receiving and holding materials to be charged
i.e. 59 and 100.
to the furnace, said hopper having an open bottom ex
tending within the top of an enclosure adjacent the top‘
of the furnace, the improvement comprising: a ?rst bell
adapted to close the open bottom of said distributor
hopper and adapted in one position to de?ne a materials‘
In some embodiments, the use of a 10 seal therewith and in a second position to de?ne an an
single spring might be replaced by a cluster of springs
positioned at spaced points about the lifting sleeves.
nular materials passing channel; a sealing member for
said enclosure having an opening below said open bottom;
a sealing bell positioned below said ?rst bell and adapted
I claim:
to contact said sealing member about the opening therein
1. In a blast furnace, the improvement comprising:
a frame; a distribution hopper rotatably mounted on said 15 to de?ne a ?uid tight seal between the sealing bell and
frame and having an open bottom; a ?rst bell positioned
member; operating means for said bells extending up‘
wardly through said hopper, said operating means in
to cover the open bottom of said hopper; a sleeve attached
to said bell and extending upwardly through said hopper,
cluding a ?rst and second shaft, the ?rst shaft of said
said sleeve having a collar rigidly attached to the upper
operating means being attached to the ?rst bell, the sec;
ond shaft of said operating means being attached to said
portion thereof; a ?xed sealing member mounted on
said frame and circumferentially extending about the lower
sealing bell; and a compression spring interposed between
part of said hopper; a sealing bell positioned below said
said ?rst and second shafts, whereby as said operating
?rst bell and adapted to contact said sealing member to
means is raised one bell will seat and said spring will
permit continued upward movement of the means until
form a ?uid tight seal therebetween; a rod attached to
said sealing bell and extending upwardly through said
25 the other bell seats.
sleeve; lifting means connected to the collar of said sleeve
5. In a blast furnace having a rotating distribution
and adapted to raise and lower said bells with respect
hopper for receiving and holding materials to be charged
to said hopper and sealing member, and a compression
spring member interposed between the sleeve and the rod
to thereby de?ne an adjustable assembly whereby the rod
to the furnace, said hopper having an open bottom ex;
tending within the top of an enclosure adjacent the top
of the furnace, the improvement comprising: a ?rst bell
adapted to close the open bottom of said hopper and
and bell associated therewith may move vertically with
respect to the driven sleeve and bell assembly to permit
seating of both bells with a single lifting means.
2. In a blast furnace, the improvement comprising:
adapted in one position to de?ne a materials seal there
with and in a second position to de?ne an annular ma
terials passing channel between said bell and said hopper;
a frame; a distribution hopper rotatably mounted on said 35 a sealing member for said enclosure having an opening
frame and having a bottom opening; power means op
eratively connected to said hopper to rotate said hopper;
a ?rst bell positioned to cover the open bottom of said
hopper; a sleeve attached to said bell and extending up
below said open bottom; a sealing bell positioned below
said ?rst bell and adapted in one position to contact the
sealing face of said sealing member to de?ne a ?uid
tight seal therebetween and in a second position to de?ne
wardly through said hopper, said sleeve having a ?ange 40 an annular materials passing channel; and vertically
secured thereto at a point above the top of said hopper;
lifting means including a support surrounding said sleeve
below said ?ange; a bearing between said support and
said ?ange whereby said sleeve is rotatably supported on
movable operating means for said ?rst and sealing bells
extending upwardly through said hopper, said means in
cluding a ?rst and second shaft, said shafts being dis
posed in telescoped relation to each other, the ?rst shaft
said lifting means; an enclosure mounted on said frame 45 being joined at one end to the ?rst bell and at the other
and extending below said hopper, said enclosure includ
ing a sealing member having a circular opening below
said bottom opening; a sealing bell positioned below said
?rst bell and extending within said enclosure through
said top opening; a rod attached to said sealing bell and 50
extending upwardly through said sleeve; a ?ange secured
end to a suitable lift mechanism, said lift mechanism
being restrained against rotation, the interconnection be
tween said ?rst shaft and said lift mechanism being such
that relative axial motion is restrained while relative angu
lar motion may occur therebetween, said second shaft
being attached at the bottom thereof to said sealing bell,
and a spring member interconnecting the upper portions
of said ?rst and second shafts the second shaft thereby
to said rod and positioned above said support; and com
pression spring means between said ?ange and said sup
being relatively vertically movable with respect to the
port, said spring means being of a length such that when
said support is in the lowered position said ?rst bell is
lift mechanism, the arrangement of said ?rst and second
bells being such that said second bell is the ?rst to close
a greater distance from the bottom of said hopper than
on raising the lifting mechanism.
is the distance between the sealing bell and the sealing
member; whereby as said lifting means is raised said
6. In a blast furnace having a rotating distribution
hopper with an open bottom extending within the top of
sealing bell will ?rst seat against said sealing member and
thereafter said spring means will compress and said ?rst 60 an enclosure adjacent the top of the furnace, the improve
ment comprising: a ?rst bell positioned to cover the open
bell will seat against said hopper, and said ?rst bell will
bottom of said hopper; a support device having a shaft
be free to rotate as said hopper is rotated.
portion and a collar portion rotatably interconnected,
3. In a blast furnace having a rotating distribution
the shaft portion being attached to said bell, said device
hopper with an open bottom extending within the top of
an enclosure adjacent the top of the furnace, the improve 65 extending upwardly through said hopper and movable
with respect to the hopper to seat and unseat said ?rst
ment comprising: a ?rst bell positioned to cover the open
bell against said hopper; means connected to the collar
bottom of said hopper; a sealing member for said en
closure having an opening below said open bottom; a
portion of said device to restrain said collar portion
sealing bell positioned below said ?rst bell and adapted
against rotation; a ?xed sealing member attached to said
to contact said sealing member about the opening therein 70 enclosure and surrounding said distributor hopper, said
to form a ?uid tight seal between the sealing bell and
sealing member forming a ?uid tight top for said en
member; a sleeve extending through said hopper and said
closure except for a central opening within the sealing
?rst bell and af?xed to said sealing bell, said sleeve being
member; a sealing bell positioned below said ?rst bell
movable vertically with respect to the ?rst bell; support
and adapted to engage the sealing face of said sealing
means for said ?rst bell; a compression spring between 75 member about said opening to de?ne a ?uid tight seal
3,0"70342
therebetween; a ‘vertically extending shaft disposed in
telescoped relation to the shaft connected to said ?rst
bell, said ‘vertically extending shaft being connected at
the'bottom thereof to the sealing bell; and resilient means
interconnecting ‘the upper ‘terminal of the shaft for said
sealing bell and said collar portion of said support device,
the vertical distance between the sealing bell and the seal
ingirnernb'er, when said device is lowered, being less than
the vertical distance between the ?rst bell and the bottom
8
second ‘position to define 'an annular material passing‘
channel, said second position of the ?rst and second bells,
respectively, being de?ned in unison so that the materials
deposited within the distributor hopper may pass from the
distributor hopper into the ‘enclosure; operating means
for said ‘?rst and second bells extending upwardly through
said hopper, said operating means including a ?rst and
second shaft, said shafts being disposed in telescoped
relation to each other, the innermost shaft de?ning the
of the hopper; whereby as said device is moved upwardly 10 shaft portion of the operating member for the second
bell; and resilient means operative in combination with
from the lowered position the contact of the sealing hell
said operating means and interposed between the ?rst and
with said ‘member will not prevent further upward move
ment of the device to thereafter seat the ?rst bell against
the hopper.
7. In a blast furnace having a rotating distributor
hopper for receiving and holding materials to be charged
to the furnace, said hopper having an open bottom ex
tending within the top of an enclosure adjacent the top
of the ‘furnace, the improvement comprising: a ?rst bell
adapted to cover the open bottom of said distributor
hopper ‘and adapted in one position to de?ne a materials
seal therewith, said ?rst bell in a second position de?n
ing an annular materials passing channel between the bell
and the bottom of the hopper; a sealing member for said
enclosure having an opening below said open bottom;
a second bell positioned below said ?rst bell and adapted
in one position to contact the sealing face of said sealing
member to de?ne a ?uid tight seal thereabout and in a
second shaft members, said resilient means including a
?rst collar attached to the ?rst shaft, said ?rst collar
de?ning a rotatable interconnection between said ?rst
shaft and the non-rotatable operating means, a second
collar af?xed to the upper extremity of the second shaft
and a spring interposed between said ?rst and second
collars, said spring adapted to resiliently urge said sec
ond bell into sealing relation with said sealing member,
said spring further de?ning a resiliently adjustable inter
connection between said ?rst and second bells to permit
closing of the second bell upon operation of the ?rst shaft.
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,073,553
2,965,249
Dienst _______________ __ Mar. 9, 1937
Johansson ____________ __ Dec. 20, 1960
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