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D66. 10,
Filed Dec. 29, 1942
2 Sheets-Sheet l
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Dec. 10, 1946.
Filed Dec. 29, 1942
2 Sheets-Sheet, 2
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Patented Dec. 10, 1946
Frans Wethly, Manhasaet, N. Y.
Application December 29, 1942, Serial No. 470,455
8 Claims. (CL 2025-141)
The general object of the present invention is
to provide under?red ‘regenerative coke ovenbat
teries with improved means for supplying air and
lean fuel gas to the battery regenerators for pre
heating therein and for withdrawing waste heat
the distribution piping including the horizontal, I
supply and off-take pipes and their branches
connected to the regenerators as above described, '
Y and the pipes through which rich fuel gas may
be supplied to the heating ?ues through the usual
ing gases from said regenerators. ' More specifi-v
cally, the object of the present invention is to
channels in the regenerator division walls, is lo
cated in a shallow piping space directly beneath
improve an under-?red regenerative coke oven
the batterydeck and between the latter and a
battery by dispensing with the usual regenerator ' subjacent wall of poor heat conductivity. Said
sole channels formed in the lower portion of the 10 wall forms the ceiling of the'portion of the base-v
coke oven brick work and providing, in lieu
ment space in which the battery attendants move
about in the performance of their usual regula
tory and inspection duties, and forms an insu
thereof, horizontal pipes extending transversely
-of the battery in its basement space, andeach
directly connected through a plurality of regula
ble branch pipes to the lower ends of respective
lation barrier substantially minimizing the trans
mission of heat fromvthe distribution piping and
regenerator sections directly above the different
the underside of the battery deck to the portion
branch pipe‘s. Each of said branch pipes is made
regulable by the inclusion therein of a butter?y
valve, or other suitable throttling device, acces
sible for ready adjustment by an operator in the 20
basement space of the battery. ' In normal oper
of the basement space beneath the heat insu
lating wall. Advanta‘geously, moreover, the said
piping space is used in recuperatively heating the
combustion air passed into the regenerators for
regenerative preheating prior to its passage to
ation, each of said horizontal pipes serves alter
the heating ?ues of the battery.
nately as an off-take conduit through which heat
The invention is adapted for use in batteries
ing gases are withdrawn from the corresponding
of various types and permits of an especially de
regenerator section by the battery stack, and as 25 sirable heat distribution in coke oven batteries
a supply conduit for atom‘ lean gas passing into
in which the heating ?ueand regenerator ar
the corresponding section for preheating therein.
By thus eliminating the customary sole chan
rangement is such that the setting of said ?ow
regulating devices which will e?ect a proper dis
' nels inthe oven brick work structure, I am able,
tribution of ?ow in one direction among the dif
to reduce the height of the coke oven brick work 80 ferent ?ues of each heating wall, ‘ll insure a
mass in a battery having regenerators and coking
substantially similar distribution of flow in the / _
chambers of customary size and proportions, by
as much as two feet or so, and thus reduce the
weight of the coke oven bricks required in a large,
but not abnormally large, battery by as much as
1,000 tons. The brick work weight thus saved
is many times the weight of the piping and valves
substituted for the sole channels. While the use
reverse direction through said ?ues.
The various features of novelty which charac
terize vmy invention are pointed out with partic
ularityin the claims annexed to and forming a
part of this speci?cation. For a better under,
standing of the invention, however, its advan
' tages, and speci?c objects attained with its use,
reference should be had to the accompanying‘
of the invention may well result in some increase
in the height of the basement. space, and conse 40 drawings and descriptive matter in which I have
quently in the length of the columns extending
up through the basement space of the battery, the
required increase in the column material required
is small in comparison with the above mentioned
reduction in the amount of coke oven brick work
The distribution piping may be made in whole
or in part of metal or of ceramic material, "and '
is readily accessible for cleaning and leakage
eliminating repairs needed to avoid interference
with the proper distribution of the heating ‘gas
?ow distribution, which the readily accessible
valves or'other ?ow regulating devices in the
illustrated and vdescribed preferred embodiments‘,v
of the invention.v
Of the drawings:
Fig, 1 is a partial ‘vertical longitudinal section‘ - ~
of a coke oven battery;
Fig. 2 is a section with its right and lefthand
portions taken on the broken lines 2-2-2 and
2—2A-—2A, respectively, of Fig. 1; and
Figs. 3 and .4 are partial longitudinal and trans
verse sections, respectively, of a battery of the
cross-over type.
In Figs..1 and 2 of the drawings, I. have illus- I
trated the use of the present invention in an
under?red regenerative‘ coke oven battery having
In a preferred form of the present invention,
hairpin heating ?ues and of conventional type
branch pipes are adjusted to effect.
- 2,412,484
and form, except in respect to ‘the construction
of the lower-portions of the regenerators and
the conduit connections thereto. The coke oven
brick work or mass A, ‘constituting the bulk of
the coke oven masonry, is supported on a deck
or slab of reenforced concrete B. The latter is
directly supported in turn by suitably spaced
adjacent heating wall by the corresponding duct
> I2 or i’. The regenerator partition walls L may
be formed in a known manner by portions of
the checkerbrick stacked up in the regenerators,
The checkerbrick mass in 'each cell is advan
tageously shaped to provide a shallow open space
~ M at the bottom of the cell.
beams C carried by columns D which may be
formed of steel or of reenforced concrete, and
The regenerator arrangement shown in Figs.
land 2 differs. however, from that heretofore
customary in under?red coke ovens in respect
extend upward through the basement space E 10 _ to
the conduit provisions passing air and gas to
above the battery foundation and for which the
be preheated into the regenerators, and for pass
deck forms a ceiling.
ing waste heating gases away from the regenera
Horizontal coking chambers F extend trans-i
tors. Said conduit provisions shown in Figs. 1
versely of the brick work A between the opposite
and 2, comprise piping in the basement space E
sides of the battery, and alternate along 'the
including horizontal pipes N, one beneath and
length of the battery with heating walls, each
parallel to each air regenerator I and pipes n
of the latter being formed with vertical ?ues G
beneath and parallel to the different gas regen
and alternating ?ues 9, all arranged in a row
erators 2'. Each pipe N is provided with an in
extending from one side of the battery to the
dividual conduit connection to the space M at
other. Each ?ue G and an adjacent ?ue g are 20 the lower end of each of the regenerator cells
connected at their upper ends to form a twin or
into which the regenerator I above it is divided
hairpin ?ue.
by its partitions L. Each such conduit connection
Pillar, or regenerator division walls H, extend
comprises a branch pipe N’ extending vertically
ing transversely of the battery are arranged one
upward from the pipe N into a vertical passage
bent th each coking chamber and one beneath 25 way formed through the deck member B and
each heating wall and form side walls of side by
through the thin brick work layer between the
side regenerators I and i. The regenerators I are
deck B and the space M of the corresponding re
intended for use solely in preheating combustion
generator section. Similar conduit connections
air, but the regenerators i are adapted for op
extend between each pipe n and the spaces M
tional use in heating either combustion air or‘ 30 of the sections of .the regenerator i above the
lean gas, accordingly as the ovens are being heat
pipe.’ Each of the branch pipes N' and n’ in
ed by the combustion of coke oven gas or other
cludes an adjustable throttling or regulating de
rich gas which does not require preheating, or
vice 0, which may advantageously be, and is
by the combustion of a lean gas such as blast
shown as a butterfly valve.
furnace gas which does require preheating.
The pipes N and 12 may be formed of metal or
For convenience, I hereinafter refer to the
of ceramic tiles’, and in either event means are
regenerators I as air regenerators, and to the re- _
advantageously provided to prevent objection
generators i as gas regenerators. In the ar
able heat transmission from the pipes to the por
_rangement shown inFigs. 1 and 2, the pairs of '
tion of the basement space beneath them. ' The
air regenerators I alternate with pairs of gas re 40 desired heat insulating effect may- be obtained in
generators 2'1 and each regenerator I is connected
a desirable manner by providing a heat insulating
by individual ducts or channels I’ to each of the
wall P beneath and closely adjacent to the under
?ues G in. the two heating‘ walls immediately
sides of the .pipes N and n. The wall P thus
adjacent the regenerator. Similarly, each re
forms a ceiling for the portion of the basement
generator i is connected by individual ducts i’ to 45 space
in which the oven attendants perform their
each of the heating ?ues g in the two immediately
regulatory and‘inspection duties, forms the floor
adjacent heating walls.
or‘ bottom wall of a shallow piping space PA
In operation with rich fuel gas, each of the
beneath’ the deck B in which the distributing
?ues G in a single heating wall receives rich fuel
pipes. J, 7‘, J’, 7", .N and n and the regulating
gas during those periods in which it is acting on
device J2 and Care located. Advantageously,
a. combustion ?ue, through channels K in the
also, the space PA serves as a recuperative space
subjacent pillar wall H and corresponding
in which the combustion 'air which is to be pre
branches J ' from a rich gas distribution pipe J,
heated in the regenerators, passes to~ the regen
extending transversely of the battery through
the upper portion of the subjacent basement 55 erators, and in doing so absorbs heat from the
pipes N and n, and their branches N’ and n’, as
space. During the rich gas operation periods in
well as from the underside of the deck B.
which the fiues g in the same heating wall serve
The wall P may be formed and supported in
as combustion ?ues, they receive rich gas through
any convenient manner, but is advantageously
corresponding channels K in the pillar wall H
formed and disposed to permit its ready removal
and branches 9" from a horizontal rich gas dis 60 and replacement in sections when necessary to
tribution pipe 9' located in the basement space
of the battery along side the OLL‘I'GSDOIldlDg pipe
_J. The amount of gas supplied by each of said
pipe branches J’ and a" is regulable by adjust
ment of a corresponding valve or ‘other regulat 65
ing device J2.v
facilitate repairs to the distribution piping. Ad
vantageously, the wall P is formed with suitably
located openings P’ which are normally closed
by movable closure members P2, and through
which the valves 0 and J2 are accessible for ad
lustment. In the desirable construction illus
In so far as above described, the coke 'oven
trated in Figs. 1 and 2, the wall P comprises edge
battery shown in Figs. 1 and 2 is of known type,
to edge slabs of some suitable heat insulating
and includes‘ nothing claimed as novel herein.
which may well be of such light weight,
In accordance with known practice, also, each 70 material,
heat insulating material as is commonly used
of the regenerators I and i is separated by vertical
to form the heat insulating outer portions of
partitions L into an end to end row of regenera
furnace walls. As shown, said slabs are sup
tor cells, sometimes called individual ?ue re-.
ported on light metal beams P1‘. The latter ex
generators, each of which is connected at its
tend between and have their ends supported by
upper end to one, and only one, ?ue G or g in an 75
the deck ‘supporting columns-D. - The closure
regenerator sole channels alternately to a waste
member P’ for the access openings _P' in the wall . . 'heat tunnel and to the atmosphere. ‘only in that
P, may be small slabs which are formed of the '
same material as the, body portion of the wallP,
and which are of greater area] extent than the
openings which they close, and are supported by
the wall P and are slidable along- the upper’side
of said wall between their open and closed po
The means employed to withdraw waste heat
ing gases from the pipes N and n during periods
in which the regenerators, connected to those'
the valves Q include no means for connecting
the sole channel to the atmosphere. ‘ The valve 8
diagrammatically illustrated by ‘way of example
in Fig. 2, comprises a chamber s'in continuously
> open communication with the corresponding pipe
1:. Communication ‘between the chamber 8' and
space PA through an inlet passage .92 is con
trolled by a valve member s3 and communication
between the chamber 8' and the lean gas- supply. '
main is controlled by a valve orcock s‘. In‘ op
pipes, are operating as “o " regenerators, and.
eration with lean gas fuel the member smremains
to supply combustion air or lean gas to said pipes ' continuously closed and the valve 34 is opened
for preheating in the regenerators connected 16 and closed in regular alternation by the battery >
I thereto, when the latter are operating as “on”
reversalmechanism at the ends of the successive
regenerators, may take any of the forms hereto- ' .
fore employed to withdraw heating gases from,
and to supply combustible agents to be preheated
to regenerators through their sole channels. Ad- _
vantageously, however,‘ the pipes N and n are
‘ arranged to draw combustion air directly from
the space PA.
In the arrangement shown in Figs. 1 and 2,
each of the pipes N and n is connected at one
end to an individual reversing valve Q which
reversal periods. In operation with rich fuel gas
the valve 84 is closed and the member s3 is opened,
and closed by the battery reversing mechanism
in regular alternation at the ends of successive
reversal periods. The valves 8 are not provided '
with inlets controlled by valves s‘, but otherwise
may be exactly like the reversing'valves s.
The recuperative effect obtained by moving‘
the combustion air through the space PA before
passing it into the regenerators, is substantial,
alternately opens and closes communication be
and makes it possible to obtain a suitably high
tween the pipe and a waste heat tunnel R. The
thermal emciency and to maintain suitably high
latter?extends longitudinally of the battery at
combustion temperatures with smaller regenera
one side of the latter, and leads to the usual 30 tors than areirequired in batteries having the
chimney (not shown) for impressing draft suc
usual regenerator arrangements. The combus
. tion on the battery heating system through the
tion air moving through the space‘PA and the
reversing valves Q and pipes N and n. As will
heat insulating wall P, cooperates‘ to insure a.
be understood the‘ valves Q connected to vhalf of
relatively low rate of transfer of heat to the
‘ the pipes N and n are open or closed during the 35 basement space below the wall P from the battery
reversal periods in which the valves connected
structure and apparatus above that wall. With
to the other pipes N and n are respectively closed v
the wall P formed of such readily available mate
As shown in Figs. 1, and 2, the end of each pipe '
N at the opposite side of the battery from the
waste heat tunnel R is connected to an individual
rial as is now used extensively in the construc
tion of the outer heat insulation portions of
furnace walls, the wall P may be light in weight
and relatively inexpensive to construct and to
open up and replace, as may be required to give
pipe may be alternately put into and out of com
access to the distribution piping above the wall.
munication with the space P'A. Similarly, each
With the combustion air drawn through the space
pipe n has its end remote from the waste heat . ,
PA above the wall and into the regenerators by
tunnel R connected to an individual reversing‘
the battery stack section, such leakage through
valve _s through which the last mentioned pipe
the joints and cracks in the wall P as may occur,
end may be closed‘ during one set of reversal
will be upward and will contribute to desirably
periods,‘ and during alternate reversal periods
reversing valve S through which that end of ,the
low temperatures and good atmospheric condi- '
may be open either to the space PA or to a. lean 50
tions in the basement space beneath the wall.
gas supply main T. accordingly as the battery
The excess of the average air temperature in
‘is being heated by the combustion of rich gas or
lean gas, respectively.
The major portion at least of the air thus
drawn into the pipes N and n from the portion
‘ of the space PA adjacent one side of the battery,
advantageously enters that space adjacent the
opposite side of the battery. To that end the
space PA may be open to the external atmos
phere at the side of the battery adjacent the
waste heat tunnel R or preferably, and as shown
in Fig. 2, is in direct communication with the
basement‘ space through openings P4 in the por
@ tion of the wall P adjacent the waste heat tunnel
R. As will be apparent, the leakage of a small
portion of the combustion air into the space P1
through the openings P2 is not practically ob
As will be apparent, the above mentioned re
versing valves, or now boxes as they are some
times called, may take various forms, and may
:be'constructed and operated in accordance with Y
the space PA above the temperature 'of the exter
nal atmosphere, is su?lcient‘ to desirably preheat
the rich fuel gas supplied through~ the pipes J '
and kN’, so as to avoid objectionable accumula
tions of liquid condensate and naphthalene in
the rich gas fuel supply piping without giving
rise to any signi?cant‘ increase in cracking
action on the'rich fuel gas as it passes through
the hotter upper portions of the channels K.
During each reversal period in which the ?ues
G of any heating wall are‘. serving as up?ow com
bustion ?ues, the regenerator I and the regenera
tor i connected to those ?ues serve as “on" re- .
generators, and the corresponding reversing valve
5 then passes combustion air into the pipe N
connected to said regenerator I, and the reversing
valve s then passes eithercombustion air- or lean
gas into the pipe n connected to the said re
generator i. During this period of I operation a ,
the usual practices of the art. The valves Q, for
example, may differ from the most usual type of
draft suction is impressed on the lower ends of
the ?ues gin the same heating wall by the waste
heat tunnel R. through the corresponding ‘re
reversing valve employed to connect coke oven 75
generators I and i, the pipes N and n, and revers- I ~ .
ing valves Q through which said ?ues g are con
nected to the waste heat tunnel R.
When ?ow through the battery heating system
is reversed at the end of the reversal period, which
customarily is one-half hour, the reversing valves
Q; S and s are adjusted to disconnect from the
waste heat tunnel P the- pipes N and 11 previously
connected thereto, and ‘to connect said pipes to
the space PA and to the gas main R. At the same
time each of the reversing. valves S which pre
viously connected one end of the associated pipe
?ow through the associated regenerator spaces
and ?ues, will also insure the proper distribution
of down?ow through those spaces and ?ues. The
coke oven shown‘in Figs. 1 and 2 is of such char- 1
acter, as is‘the coke oven shown in Figs. 3 and 4.
In Figs. 3 and 4, I have illustrated the use of
the present invention in an under?red coke oven
battery of well known type, in which the upper
ends of the heating ?ues GA in each heating wall
are connected by a plurality of cross-over connec
tions GB to the upper ends or the similar vertical
N to the space PA, is adjusted to close that pipe 1
end, and each reversal valve s which previously
heating ?ues GA in an adjacent heating wall.
The di?erent cross-over connections GB extend
adjusted to close thatpipe end.
As those skilled in the art will understand, by
suitable adjustments of the throttle valves 0 in
the associated branch pipes N’ and n’, it is read
ily possible to maintain approximately‘ the same 20
veach cross-over connection directly connects the
connected one end of its associated pipe n to the - ing over the same coking chamber F are dis
space PA or to the lean gas supply main T, is then 15 tributed along the length of that chamber so that
constant pressure at the tops of the various ?ues
G and g, and to maintain one approximately con
stant pressure at the bottom of each regenerator
space supplying a preheated combustible agent,
.and another approximately constant pressure at 25
the bottom of each regenerator space through '
upper end of a small group of side by side ?ues
in an adjacent portion of'the heating wall at one
side of the coking chamber to the upper ends of
?ues of a similarly located small group of side by
side ?ues in the heating wall at the other side
of the coking chamber.
In the conventional
cross-over and heating ?ue arrangement shown
in Figs. 3 and 4, each heating ?ue is formed with
28 vertical ?ues and has 7 cross-over connections
GB. In consequence, each cross-over connection
serves to directly connect four side by side flues
which waste heating gases are passing.
in each heating wall to four side by side ?ues in
The simpli?cation of the coke oven structure
an adjacent heating wall.
and the reduction in the masonry weight and con
struction cost made possible by the use‘ of the 30 The regenerators of the battery shown in Figs.
3 and 4, comprise a pair of end to end gas regen
present invention, - will be readily apparent to
i adjacent each end of the battery, a pair
those skilled in the art. It will be apparent, also,
of end to end air regenerators I respectively
that the pipes N and n, their branches N’ and n’
alongside and immediately adjacent said pairs of
‘and the valves 0, may be cleaned and adjusted,
i,‘ and a plurality of sets oi?v air and
and operating defects which they may develop
gasv regenerators intermediate the air regenera
may be eliminated with relative ease if and when
the need therefor arises.
tors I.
Each of said intermediate sets of regen- -
erators comprises a pair of end to end gas regen
erators id and a pair of end to end air regenera
1 and 2, cannot be obtained or approximated in 40 tors I at each side of the gas regenerators ia.
Each heating flue GA is connected at its lower
any coke oven battery heretofore in use and in
The desirable uniformity of heat distribution
obtainable with the apparatus illustrated in vFigs.
cluding regulating provisions which are as simple,
as accessible, and as readily operable as are the
butter?y valves 0. The expression, "uniformity
of heat distribution," as used herein, means such
relative rates of heat transfer to a coking charge
from di?erent portions of the adjacent heating
walls, as will complete the coking operation in ap
proximately the same time of each portion. of the
charge extending between said heating walls, re-_ -
end to a corresponding air regenerator I and to
a corresponding gas regenerator i or w. Each re
generator I andi is connected at its upper end to
?ues in one adjacent heating wall only, but each
gas regenerator id is connected at its upper ends
to the lower ends of heating ?ues GA in each of
the two adjacent heating ?ues. Piping including
the usual distribution pipes JA extending trans
versely of the battery in the basement space E,
' may be used to supply rich fuel gas to the heating
gardless of the distance of said portion from vthe
top or end edges of the charge. Such uniformity
In so far as above described, the battery shown
of heat distribution requires a definite non-uni
in Figs. 3 and,4 is of well known type and form,
formity in the rates of heat supply by the vertical
different ?ues in each heating wall, to make up 55 and includes nothing claimed as 'novel herein.
The air and gas regenerators shown in Figs. 3
for the heat radiation losses at the sides of the
and 4, however, are like those shown in Figs. 1
battery, and to compensate for the customary
and‘ 2, in that they include no sole channels
progressive increase in- the thickness of the
formed in the coke oven brick work. Each of
charge from the “pusher” side to the “coke" side
of the battery. In general, therefore, the attain 60 the regenerators of Figs. 3 and 4 receive air or
lean gas to be preheated in the regenerator from,
. ment of uniform heat distribution with the con
and discharges waste heating gases into a corre
struction shown in Figs. 1 and 2, requires signi?
sponding supply and o?take conduit N or n which,
cant variations in the adjustment of different reg
as shown, is located in a recuperator chamber.
ulating valves 0 associated with each heating
wall, so as to compensate for variations in ve 65 PA like that shown in Figs. 1 and 2.
In the particular battery design shown in Figs.
locity head and static pressure along the length of
3 and 4, there is a waste heat tunnel RA at each
vthe pipes N and n, as well as to vary the rates of
side of the battery, and the supply and o?take
?ow through the associated heating ?ues 81 ac
conduits N are arranged in end to end pairs, as
cordance with their different heat output require;
are the conduits n, and at each side of the bat
tery there is a lean gas supply main TA. Each
Especially good heat distribution results are
waste heat tunnel RA is connected to each of
obtainable by the use of an invention in a coke‘
the adjacent conduits N by an individual revers
oven battery of such character that the adjust
inc valve QA, and each waste heat tunnel RA
ment of valves 0 or analogous control devices
which will insure the proper distribution of up 76 and each lean gas supply main TA is connected
' auaasc
to each of the adjacent conduits 11. through a
corresponding reversing valve qa. In its con
forms of the apparatus disclosed without depart
struction and proportions, each reversing valve
QA may be exactly like the most usual time of
I the appended claims, and that in some cases cer
ing from the spirit of my invention as set forth in
tain features of my invention may be used to
advantage without a corresponding use oi other
reversing valve now in use to connect a coke
oven regenerator sole channel alternately to_a
waste heat tunnel or to a source of combustion
Having now described my invention; what I‘
air, except that each valve QA has its combus
. claim as'new and desire to secure by Letters
tion air inlet Q5 connected to the space PA.
Similarly, each reversing valve qa differs from the
Patent, is:
1. A regenerative, under?red' coke oven bat
most usual form of reversing valve employed to
?ow into and out of the sole channel of a coke
tery, comprising a masonry oven and regenera
. tor structure formed with horizontally elongated
oven regenerator which is optionally usable in - -
coking chambers extending transversely of the
preheating combustion air and lean fuel gas, ' ' battery and with heating walls alongside the
only in that each valve qa has its combustion air
inlet a5 in communication with the space PA.
In the crossover type of oven shown in Figs. 3
and 4, all of the ?ues GA in each heating wall
coking chambers and having vertical ?ues and
with regenerators beneath said chambers and
heating walls and connected to the ?ues above
them, supporting means for said structure com
serve simultaneously as up?ow ?ues or down?ow
?ues. In consequence,_in operation with rich '
fuel gas each of the di?erent ?ues GA in a heat
prising a foundation underlying and spaced away '
from the underside of said structure and a plu
rality of horizontally distributed portions ex’
tending upward from the foundation into sup
porting engagement with said structure, a hori
zontal heat insulating wall dividing the space
ing wall may receive rich fuel gas during alter
nate reversal periods through an individual
branch J’ or 7“ including a regulating device J’,
from a single rich gas distribution pipe J or i.
In Figs. 3 and 4, each of the di?Eerent regen
between said structure and foundation into an
upper air space'and a lower basement space form
erators I, i, and ia may advantageously be di
ing a passageway extending transversely of the
battery for substantially its full width and
vided by partitions LA into a row of sections ex
tending’ transversely of the battery, and each of
adapted for the use of battery attendants, a
said sections is directly connectedto the lower 30 plurality of horizontal pipes ,located in said air
ends of four ?ues GA, which have their upper _
space and extending transversely of the battery
ends directly connected to a corresponding cross
and each having a plurality of uprising branches
over section GB. Each of said regenerator sec
distributed along its length and respectively con
tlons is connected by a corresponding branch
nected to adjacent regenerator portions displaced
pipe N’ or n’ including a butter?y valve or other
from one another transversely of the battery,
regulating device 0, to the corresponding conduit
means for alternately supplying a combustion
N or n.
agent to and withdrawing products of combus
Substantially the same advantages obtainable
tion from the different regenerator portions
with the construction shown in Figs. 1 and 2,
are obtainable with the construction shown in
Figs. 3 and 4. With the construction shown in
Figs. 3 and 4, as with that shown in Figs. 1 and 2,
' through said pipes, said means being arranged
the adjustment of the associated regenerator
supply regulating valves 0 which will insurle
nets of combustion are withdrawn from the last
to pass the combustion agent through each oi
said pipes during regenerator reversal periods
alternating with reversal ‘periods in which prodmentioned regenerator portions and arranged to
proper distribution of up?ow among the different 45 pass the combustible agent through each of said
?ues in each heatingwall, simultaneously serving
pipes-during reversal periods in whichproducts
as up?ow ‘?ues, will also insure the proper dis- '
of combustion are being withdrawn through an
tributlon 'of down?ow through those ?ues when
the ?ow through them is reversed. This desir
able result is insured ‘in each arrangement by the
fact that none of the ?ow paths including the
different fines-‘of a heating wall and the “on?
and “off” regenerator sections in series with the
?ues, comprises portions di'ssimilarly displaced
adjacent pipe, whereby temperature differences
between said pipes are reduced by 'thetransfer of
heat through said air space from the more highly
heated to the less highly heated pipes.
2. A coke oven battery as speci?ed in claim 1,
including means accessible for adjustment by an
attendant in said basement space-for regulating
from the sides of the battery to any signi?cant 65 the distribution or ?ow-through, the branches
extent. While in they arrangement shown in
connected to each of said pipes.
Figs. 3 and 4, each cross-over connection GB
3. A coke, oven battery as speci?ed in claim 1,
' - receives gases moving to it in parallel streams»
through four different ?ues in one heating wall
in which the combustion agent passing to the
regenerator portions through some at least of '
and distributes those gases among four ?ues GB 60 said pipes is air passing into said p'pes through
in an adjacent heating wall, the side by side
said air space‘ and thereby preheated.
?ues in each group are close together.
In con
' 4. A coke oven battery as speci?ed in claim 1,
sequence, the distribution of ?ow through themv
is not signi?cantly affected by differences between
the pressures in different portions of the con
including rich Iuel gas supply piping including
regulating'devices located in said air space, and
nections to the ends of the ?ues as it is, for
tributedopenings through which said adjusting
example, in coke oven batteries of known type
in which a considerable number of side by side
vertical heating ?ues are connected in parallel
to a horizontal channel.
in which said horizontal wall is formed with dis
devices may be adjusted.
5. -A coke oven battery'as speci?ed in claim 1,
in which rich fuel gassupply piping ‘and devices
70 adjustable to regulate the supply or combustible
While in accordance with the provisions of
g-asto the different ?ues are located in said air
the statutes, I have illustrated and‘ described the
space and in which ‘said branches include regu
best forms of embodiment of my invention now
lating devices and in which said horizontal wall is
known to me, it will be apparent to, those skilled 1 formed with distributed openings through which
_ in the art that‘ changes may be made in the 76 said devices may be adjusted.
6. A regenerative under?red coke oven battery,
comprising a ‘masonry structure above a. basement
space and formed with horizontally elongated
coking chambers extending transversely of the
battery, heating walls alongside the coking cham
bers and formed with vertical ?ues, and regener
rows of vertical heating ?ues alongside said cok- ‘
ing chambers and with regenerators below said
coking chambers and ?ues and having their upper
ends connected to the lower ends of said ?ues,
regenerator supply and o?take conduits located
in said space and extending transversely of the
battery and each provided with a plurality of
branches displaced from one another transversely
of the battery and each of which extends upward
ators beneath said chambers andheating walls
and connected to the said ?ues above them, pipes
extending transversely of the battery beneath
said structure and each having a plurality of 10 into said masonry and‘ communicates with a
directly adjacent regenerator section, and a sepa
uprising branches distributed along its length and
rate ?ow regulating device in each of said
connected to adjacent regenerator portions dis
branches andaccessible for adjustment from said '
placed from one another transversely of the bat
basementspace, said ?ues being'iconnected at
tery, said branches having individual ?ow regu
their upper ends to provide a plurality of ?ow
lating means accessible for adjustment from the
paths each having all of its portions substan
basement space, means for alternately passing in
tially similarly displaced from the sides oi.’ the
opposite directions through each of said pipes
so that a setting of said ?ow regulating
and its branches, a combustible agent to be pre
devices e?ecting a proper distribution of ?ow in
heated in/the regenerator portions connected to
one direction among the di?erent fines of each
said branches, and heating gases withdrawn from 20 heating
wall may effect a substantially similar
said regenerator portions, means for supplying
of ?ow in the reverse direction
rich fuel gas to said ?ues comprising distribution
through said ?ues, and a horizontal partition
pipes below said structure, uprising channels in
‘separating the basement space into an upper
said structure, and means below said structure
‘chamber including said conduit and branches,‘
for regulating the gas flow through said channels,
and a lower passageway extending transversely
and aheat insulating wall below the said‘ struc
of the battery substantially beneath each heat
ture ‘and spaced away from the latter and sepa
ing wall through which an oven attendant may ‘
rating the space beneath said structure into an
move in adjusting the ?ow regulating devices in
upper chamber in-which said pipes are located,
and a subj acent space forming the passageway for 30, said
8. A regenerative underflred coke oven battery
an oven attendant required for under?re opera
as specified’ in claim 1, comprising reversing
valves external to said basement space, to which
7. In a regenerative under?red coke oven bat
the ends of said pipes are connected.
tery having a basement space and masonry above
said space and formed with coking chambers ex 35
tending transversely of the battery and with
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