close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3077879

код для вставки
Feb. 19, 1963
J. H. REIGHART
3,077,866
WATER-COOLED FURNACE DQOR FRAME
Filed March 7, 1960
32___.
INVENTOR.
2a
JwneliReigkwr?
_
BY
'
ATTORNEYS
id
$377,356
Patented Feb. 119, 19%3
2
3,077,866
WATER-EIGQLED FURNAQE DGUR FRAME
June lid. Reig‘nart, W91 Lee Road, (Zieveland, Ghio
Filed Mar. 7, 1969, Ser. No. 13,056
4 Claims. (til. 122-498)
Another object of the invention is to provide a furnace
door frame of this type having inwardly disposed hollow
jamb ‘guards on the legs or jambs thereof and means for
circulating cooling water through these jamb guards so
as to adequately cool the same to protect them against
the heat of the furnace.
A further object of the invention is to provide a water
cooled door frame of this type having a separate circula
The invention relates to furnace door frames, and
more particularly to water-cooled door frames especial
tion system in each jamb guard to prevent accumulation
ly adapted for use with water-cooled doors of open hearth
10 of steam in pockets which would interfere with the how
furnaces, melting furnaces and the like.
of water.
Hollow, water-cooled door frames are commonly used
Another object of the invention is to provide a water
for such furnaces, such door frames comprising gen
cooled door frame of this type in which spaced baffle walls
erally a hollow steel shell forming an arch with depend
ing hollow legs or jambs communicating therewith, and
means for passing cooling water therethrough.
are provided within the hollow jamb guards so as to di
rect the ?ow of cooling water against the innermost por
in steel mills generally, river water is circulated
through the hollow shell and jambs of such door frames
for cooling the same to protect them against the intense
tions of the jamb guards.
furnace heat to which they are subjected.
scribed di?iculties overcome and the advantages and re
As river wa
ter ordinarily contains sand, silt, earth and the like, much
of which is so ?ne that it passes through the filters usu
ally provided for such purpose, considerable difficulty
is experienced by admitting the same to the interiors of
such hollow door frames.
A major dif?culty experienced in steel mill practice
is that this fine sand, silt, earth and similar impurities
is deposited in a ?lm or layer upon the arch of the door
These and other objects, apparent from the drawings
and following description, may be attained, the above-de
sults obtained, by the apparatus, construction, arrange
ment and combinations, sub-combinations and parts which
comprise the present invention, preferred embodiments
of which, illustrative of the best modes in which appli
cant has contemplated applying the principle, being set
forth in detail in the following description and illustrated
in the accompanying drawings.
In general terms, the invention may be briefly described
in its simplest form as comprising a hollow water-cooled
furnace door frame comprising a steel shell having de
nace heat.
30 pending legs or jambs, an arch plate in the shell form
This results in this ?lm or layer of earthy substances
frame, which is subjected to the full intensity of the fur
ing the bottom of the main body of the door frame and
becoming vitri?ed by the heat of the furnace, and by
the opposed side walls of the legs or jambs.
continued use additional ?lms of these substances will
An angularly inclined partition wall is located within
build up upon the arch of the door frame and become
vitrified, forming an insulation layer of such thickness 35 the lower portion of each leg or jamb at a point spaced
from the bottom thereof providing a sump in the lower
that the water circulating through the hollow shell can
end of each hollow leg or jamb. A water inlet pipe en
no longer adequately cool the arch of the door frame.
ters the hollow shell at one upper corner thereof and
As a result, the arch plate of the door frame is sub
communicates with a manifold centrally located therein.
jected to the full intensity of the furnace heat without
the bene?t of adequate cooling, and quickly burns out, 40 Pipes lead from each end of said manifold down into
the hollow legs or jambs, each pipe passing through the
rendering the door frame useless and requiring immedi
corresponding inclined partition wall and terminating
ate replacement thereof.
therebelow.
Also, such door frames are sometimes provided with
Thus, the incoming water is delivered directly to the
inwardly ‘disposed, hollow jamb guards on the legs or
jarn'os of the door frame, between which jamb guards the 45 sumps in the lower ends of the legs or jambs and earthy
impurities in the water may be deposited by gravity there~
brick-work of the furnace wall is built.
in. The water then passes upward through an opening
Another difliculty commonly experienced in the use of
at the top of each inclined partition wall through the
such water-cooled furnace door frames is the formation
hollow legs or jambs and then through the main body por
of steam pockets which interfere with the ?ow of water.
It is therefore a primary object of the invention to pro 50 tion of the shell and is discharged through an outlet pipe
vide a hollow, water-cooled door frame having means
in the other upper corner of the shell.
A small vent is preferably provided in the lower por-'
tion of each inclined partition wall to permit a small
amount of water to rise upwardly therethrough, in order
door frame and insulating the same against the cooling
55 to agitate the water in the hollow legs or jambs directly
in?uence of the water.
above the inclined partition wall to prevent the deposit
Another object of the invention is to provide a door
of earth impurities from the water onto the top thereof
frame of the character referred to having sumps in the
and to permit such impurities to settle by gravity through
lower ends of the hollow legs or jambs thereof and means
said vent into the sump. A clean-out plug is provided
for delivering the cooling water directly to these sumps
so that the greater portion of the earthy impurities in 60 in the lower portion of each sump for the purpose of pe
riodically removing any accumulation of sand, silt, earth
the water may be deposited therein, after which the wa
and the like therefrom.
for with these impurities removed therefrom is circulated
In the embodiment of the invention in which a hollow
through the hollow shell.
jamb guard is disposed inwardly from each leg or jamb
A further object of the invention is to provide such a
door frame in which each sump is formed by an angu 65 of the hollow door frame, the above-described means for
circulating water therein is provided. However, each
larly inclined partition wall within and spaced from the
hollow jamb guard communicates with the corresponding
lower end of each leg or jamb of the frame, the water
leg or jamb of the frame only at the lower and upper
inlet pipe being located through said partition wall for
ends of the jamb guard.
delivering the incoming water directly into the sump, the
The lower end of the jamb guard communicates with
water then rising through an opening at the top of the 70
the corresponding leg or jarnb directly below the upper
inclined partition wall and circulating through the hollow
end of the inclined partition wall. Spaced, inclined ba?ie
door frame to the discharge outlet.
therein for preventing earthy impurities in the circulating
water from being deposited upon the arch plate of the
8,077,866
3
A.
walls are located within each hollow jamb guard in order
to direct the ?ow of water against the innermost portion
A vent 18a is preferably provided in the lower end of
each partition wall 15a. The straight portion 14a of each
pipe 13:: is located through a suitable opening 16a in the
corresponding partition wall 15a and terminates directly
therebelow.
Spaced upwardly and inwardly inclined bai'lle plates 26
of the jamb guard.
In addition to the water-circulating means above de
scribed, a second pair of pipes leads from the manifold
downward to each hollow leg or jamb terminating above
the inclined partition wall therein. If desired, a second
are connected to the inner wall 3, within each jamb guard
sump may be formed in each leg or jamb by locating a
24, and terminate at points spaced from the vertical inner
second inclined partition wall therein at ‘a point above
wall 27 of the jamb guard. The lower wall 28 of each
the ?rst partition wall, the second pipe in each leg ex 10 jamb guard is inclined upwardly and inwardly, and the
tending through this second partition wall and terminat~
upper wall 29 thereof is inclined downwardly and in
ing therebelow, and the water rising up from the second
wardly toward the vertical wall 27.
sump through an opening at the upper end of the second
An outlet opening 30, preferably of smaller size than
partition wall and circulating upward through the hollow
the inlet opening 25, is provided in the inner wall 3 of
legs or jambs and then through the main body portion of 15 the shell at the upper end of each jamb guard 24, thus
the hollow door frame to the outlet.
permitting water entering the lower end of the jamb guard
Various other arrangements of pipes and ba?ie walls'
through the inlet opening 25 to pass out of the upper end
maybe provided where the hollow door frame is provided
of the jamb guard and enter the interior of the hollow
with both a hollow lintel and hollow jamb guards for
shell.
providing adequate circulation through each, and the 20 A pair of pipes 31 are connected to the manifold 12a
lintel and jamb guards may communicate with each other
and are disposed in opposite directions toward opposite
so that the water passes directly from the jamb guards‘
to the lintel, or separate circulating systems may be pro
ends of the shell and are then directed downwardly as at
32 into the legs or jambs 2, passing through the upwardly
and inwardly inclined partition wall 33, located in the
legs or jambs 2 at points spaced above the inclined parti
vided in each jamb guard and in the lintel.
FIG. 1 is a sectional elevation looking toward the back
or outer side of the door frame, showing an embodiment
tion walls 15a and thus providing a second sump in the
lower portion of each hollow leg or jamb.
upon the inner or furnace sides of the hollow legs or
An opening 34 is formed ‘in the upper end of each
jambs;
,
partition wall 33 toward the arch plate 7, and a vent 35
FIG. 2 is a vertical section taken on line 2-~2, FIG. 1; 30 is preferably provided in ‘the lower end of each partition
FIG. 3 is a perspective view of the door frame shown‘
wall 33. A clean-out plug 200 is located in the lower
in FIGS. 1 and 2, on a smaller scale, looking toward the
end of each hollow leg or jamb to clean accumulated dirt
inner or furnace side thereof;
,
from the lower sump 21a therein, a clean-out plug 22::
FIG. 4 is a fragmentary transverse, sectional view
is located in the lower end of the upper sump 36 in each
taken on line 4-4, FIG. 2.
leg, and a clean-out plug 37 may be located in each leg
In the embodiment of the invention illustrated in FIGS.
above the lower end ‘of the inclined partition wall 33 to
1-4 inclusive, water-cooled jamb guards are provided on
remove any accumulation of dirt around the vent 35.
the inner or furnace side of the legs or jambs of the door
The incoming cold ?uid from the inlet pipe 11a is
frame. The steel shell comprises the upper body portion
distributed through the manifold 12a to the pipes 13a
1 and the depending hollow legs or jambs 2, the shell, hav 40 and '31. The water passing into the pipes 13a, and
ing the spaced inner and outer steel plates 3 and 4 respec
downwardly through the vertical portions 14:: thereof,
tively, forming the inner‘ and outer walls of the body por
is delivered directly to the lower sumps 21a in the lower
tion and the legs or jambs, the top plate 5, the end plates
ends of the hollow legs or jambs, a considerable portion
6, forming the end walls of the body of the frame and
of the earthy impurities in the water being deposited by
of the legs or jambs, the arch plate 7, forming the bottom
gravity ‘in the sumps 21a.
of the body portion and the other side wall of each leg
This water then passes through the inlet openings 25
or jamb, and the bottom plates 8 forming closure walls'
into the lower ends of the hollow jamb guards 24, rising
for the lower ends of the legs or jambs.
therein and being directed around the ends of the in
Spacing bolts or bars 9 may be provided for connecting
clined ba?ie walls 26 against the vertical inner Wall 27
the plates 3 and 4 in spaced relation and conventional 50 of each jamb guard and then passing through the outlet
door guideways It} may be located on the back or outer
openings 30 into the interior of the hollow shell.
side of the frame, all as above described.
The water from the pipes 31 is delivered directly to
In this embodiment of the invention, hollow jamb
the sumps 36, where earth impurities are deposited by
guards 24 are located on the inner or furnace side of the
gravity and the water rises through the openings 34 in
hollow frame, and means is provided for producing a
the inclined partition walls 33, upward through the hol
separate system for circulating cooling water therethrough,
low legs or jambs 2 and through the hollow body portion
to prevent accumulation of steam in pockets. Water is
1 of the shell, and with the water from the hollow jambs
admitted to the interior of the hollow frame through the
is carried upwardly and outwardly through the outlet
of the invention having hollow water-cooled jamb guards
inlet pipe 11:: at one upper corner of the frame for con
nection to a hose or the like leading from a suitable sup
ply of cold water.
The inlet pipe 11a extends through the top plate 5 and
is then directed toward the center of the hollow shell
where it is connected to the manifold 12a. Pipes 13a
pipe 19a.
60
With this atrrangement‘it will be seen that the hollow
jamb guards 24 and the hollow legs 2 of the frame are
each cooled by water passing directly thereto from the
inlet pipe. The provision of separate circulation sys
tems for the hollow jamb guards prevents the accumula~
are connected to opposite ends of the manifold 12a and 65 tion of steam in pockets which would interfere with the
are directed toward opposite ends of the shell and then
free ?ow of Water therethrough.
downwardly as at 14a into the legs or jambs 2.
Sumps are provided for each of the pipes leading to
An inclined partition wall 15a is rigidly mounted in the
the legs of the hollow frame, a considerable portion of
lower portion of each leg or jamb 2, at a point spaced
70 the earthy impurities is removed from the water so that
above the bottom wall 8 thereof, each partition wall being
as the water is circulated upwardly in ‘the hollow shell
inclined upwardly from the outer wall 4 to the inner wall
and over the arch plate 7 the chances of forming a ?lm
3 to which it is connected just above the inlet opening 25
of earthy impurities upon the arch plate is greatly mini
to the lower end of the corresponding hollow jamb guard
mized.
24.
75 In the foregoing description, certain terms have been
8,077,866
5
6
used for brevity, clearness and understanding, but no
the corresponding jamb guard, means providing communi
unnecessary limitations are to be implied therefrom be
yond the requirements of the prior art, because such
cation between the upper end of each jamb guard and
the hollow shell, a second inclined partition wall in each
words are used for descriptive purposes therein and are
hollow leg spaced above the ?rst named inclined parti
intended to be broadly construed.
Moreover, the embodiments of the improved construc~
tion wall and providing a second sump in each hollow
leg, there being an opening adjacent the upper end of
each second named partition forming communication be
tween each second named sump and the corresponding
ample, and the scope of the present invention is not
hollow leg, second conduits extending down into said
limited to the exact details of construction.
Having now described the invention or discovery, the 10 second sumps, means providing communication between
said inlet pipe and said second conduits, and a ?uid out
construction, the operation, and use of preferred embodi
tion illustrated and described herein are by way of ex
ments thereof, and the advantageous new and useful re
let at the other upper corner of the hollow shell.
3. In a hollow, water-cooled furnace door frame of
sults obtained thereby; the new and useful construction,
the character described, spaced inner and outer plates
and reasonable mechanical equivalents thereof obvious to
those skilled in the art, are set forth in the appended 15 having depending extensions at opposite side edges de?n~
ing in part a hollow shell consisting of a hollow body
claims.
portion and spaced hollow legs depending therefrom, a
I claim:
top plate closing the top of said hollow body portion,
1. In a hollow, water-cooled furnace door frame of
an arch plate closing the bottom of said hollow body
the character described, spaced inner and outer plates
having depending extensions at opposite side edges de 2-0 portion and the inner sides of the hollow legs, end plates
closing the edges of the hollow body and the outer sides
?ning in part a hollow shell consisting of a hollow body
of the hollow legs, bottom plates closing the lower ends
portion and spaced hollow legs depending therefrom, a
of the hollow legs, an inclined partition Wall within each
top plate closing the top of said hollow body portion,
hollow leg and spaced from the bottom thereof providing
an arch plate closing the bottom of said hollow body
portion and the inner sides of the hollow legs, end plates 25 a sump in the lower end of each leg, means for circulat
ing a ?uid through said shell, said means comprising a
closing the edges of the hollow body and the outer sides
?uid inlet pipe extending from an upper corner of the
of the hollow legs, bottom plates closing the lower ends
hollow shell to a point adjacent the center of the hollow
of the hollow legs, a partition wall within each hollow
body portion, conduits extending down into said hollow
leg and spaced from the bottom thereof providing a
legs and through the partition Walls therein, means pro
sump in the lower end of each leg, means for circulating
viding communication between said inlet pipe and said
a ?uid through said shell, said means comprising a ?uid
conduits, hollow vertical water-cooled jamb guards ?xed
inlet pipe extending from an upper corner of the hollow
upon the exterior of said inner plate and substantially
shell to a point adjacent the center of the hollow body
coextensive with said hollow legs, means providing com
portion, conduits extending down into said hollow legs
and through the partition walls therein, means providing 35 munication between each sump and the lower end of
communication between said inlet pipe and said conduits,
hollow vertical water-cooled jamb guards ?xed upon the
exterior of said inner plate and substantially coextensive
with said hollow legs, means providing communication
between each sump and the lower end of the correspond 4:0
ing jamb guard, means providing communication between
the corresponding jamb guard, means providing com
munication between the upper end of each jamb guard
and the hollow shell, :1 second inclined partition wall in
each hollow leg spaced above the ?rst named inclined
partition wall and providing a second sump in each hol
low leg, there being an opening adjacent the upper end
of each second named partition forming communication
the upper end of each jamb guard and the hollow shell,
between each second named sump and the corresponding
a second partition wall in each hollow leg spaced above
hollow leg, and a vent adjacent the lower end of each
the ?rst named partition Wall and providing a second
sump in each hollow leg, there being an opening in each 45 second named partition, second conduits extending down
into said second sumps, means providing communication
second named partition forming communication between
between said inlet pipe and said second conduits, and a
each second named sump and the corresponding hollow
?uid outlet at the other upper corner of the hollow shell.
leg, second conduits extending down into said second
4. In a hollow, water-cooled furnace door frame of
sumps, means providing communication between said
the-character described, spaced inner and outer plates
inlet pipe and said second conduits, and a ?uid outlet at
the other upper corner of the hollow shell.
2. In a hollow, water-cooled furnace door frame of
having depending extensions at opposite side edges de
?ning in part a hollow shell consisting of a hollow body
port1on and spaced hollow legs depending therefrom, a
the character described, spaced inner and outer plates
top plate closing the top of said hollow body portion, an
having depending extensions at opposite side edges de?n
ing in part a hollow shell consisting of a hollow body 55 arch plate closing the bottom of said hollow body por
tion_ and the inner sides of the hollow legs, end plates
portion and spaced hollow legs depending therefrom, a
closing the edges of the hollow body and the outer sides
top plate closing the top of said hollow body portion,
of the hollow legs, bottom plates closing the lower ends
an arch plate closing the bottom of said hollow body
or the hollow legs, a partition wall within each hollow
portion and the inner sides of the hollow legs, end plates
leg
and spaced from the bottom thereof providing a
60
closing the edges of the hollow body and the outer sides
sump in the lower end of each leg, means for circulating
of the hollow legs, bottom plates closing the lower ends
a ?uid through said shell, said means comprising a ?uid
of the hollow legs, an inclined partition wall within each
inlet
pipe extending from an upper corner of the hollow
hollow leg and spaced from the bottom thereof providing
shell to a point adjacent the center of the hollow body
a sump in the lower end of each leg, means for circulat
portlon, conduits extending down into said hollow legs
ing a ?uid through said shell, said means comprising a 65 and through the partition walls therein, means providing
?uid inlet pipe extending from an upper corner of the
communication between said inlet pipe and said conduits,
hollow shell to a point adjacent the center of the hollow
hollow vertical water-cooled jamb guards ?xed upon the
body portion, conduits extending down into said hollow
exterior of said inner plate and substantially coexten
legs and through the partition walls therein, means pro
sive with said hollow legs, means providing communicaa
viding communication between said inlet pipe and said 70 tion between each sump and the lower end of the corre
conduits, hollow vertical water-cooled jamb guards ?xed
sponding jamb guard, means providing communication
upon the exterior of said inner plate and substantially
between the upper end of each jamb guard and the hol~
coextensive with said hollow legs, means providing com
low shell, a second partition wall within each hollow
munication between each sump and the lower end of 75 leg spaced above the ?rst partition wall and providing
V
H
‘
3,077,866
7
a 'second sump, second ‘conduits extending down into
v
‘
8
References ?ited in the ?le of this patent‘
said legs and through said second partitions and termi-
UNITED STATES PATENTS
mating above said partitions, means providing communication between said inlet pipe and said second Conduits, 5
1,211,884
2,529,272
Schmidt ______________ __ Jan 9, 1917
Yoxall _______________ __ Nov. 7, 1950‘
and a ?uid outlet at the other upper corner of the hollow
2,720,192
Humes' ______________ __ Oct. 11, 1955
774,209
Great Britain _________ __ May 8, 1957
shell.
FOREIGN PATENTS
Документ
Категория
Без категории
Просмотров
0
Размер файла
680 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа