Year: 1899

page_text: Date of Application, 16th Aug., 1899
Complete Specification Left, 12th May, 1900-Accepted, 16th Aug., 1900
furnace gases are more completely utilised and have a more uniform action.
The invention is illustrated in the accompanying drawing.
Figure 1 being a section through the furnace chamber.
Figure 2 a section through the combustion chamber.
Figure 3 a section through the air chamber.
Figure 4 an elevation.
Figure 5 a horizontal section of Figure 4 through the level of the gas collect-
ing channels.
The section Figure 1 is taken through the furnace chamber B with the four
mouth-holes a, the two openings M for exhausting the gases and the three
openings C in the three collecting channels D, further through the furnace bottom
channel G and the cooling channels, as well as the two chief gas channels I with
the flues H.
Figure 2 represents the section taken through one of the combustion chambers
(gas circulation F), and shows how each wall between two furnaces has two of
these.
This section runs further through the three gas collecting channels D as well
the openings connecting the collecting channels with the combustion chamber
(circulation. E) sideways from the collecting channel, and extended upwards by
covered shafts, in order that it may be possible to regulate these openings.
The circulation of the "battery" gases mixed with steam in the collecting
channels is effected as follows:
The gases flow out of the collecting channels D) situated at the ends of the
furnace into the openings E at the side and adjustable by means of slides through
two rows of passages or tubes downwards (4 in each case in the drawing).
Two rows are provided for the purpose of directing the gases more or less to
the end of the furnace by means of the inlet slide in E, thus eventually (in certain
cases) to bring rather more gas into the extreme outside four tubes or passages
than in the four adjoining ones. The previously (preliminarily) heated air flows
through the small holes at the beginning of the tubes to the inflowing gases and
then downwards with the latter in a state of combustion. The entire circulation
of the air through the air chamber situated between two combustion chambers
(Figure 2) is illustrated by the sectional view Figure 3. The gases pass below
to the five tubes of the second division and again receive from below. through the
small holes. an addition of preliminarily heated air of combustion. striking
upwards with these in a state of combustion, in order to reach the third and last
division of six tubes, there again to receive through small openings the last air

page_text: of combustion and at the same time an addition from the middle channel D
through the one outflow opening E, whilst the other C runs into the other half
of the combustion chamber. In this third and last division of the passages
or tubes, the gases flow with the last of the air downwards to the level of the
bottom of the channel under a furnace run under the furnace bottom (or bottom-
plate) which is here connected with the combustion chambers by means of
six slots (Figures 1 and 2) and strike under the bottom of the furnace bottom
(or bottom-plate) into the bed or bottom channel G from the middle of a
furnace to the end, and through the adjustable flue H to one of the chief gas
channels J, which conducts it below the boiler and to the principal chimney.
The products of combustion are thus drawn downwards, upwards, downwards,
and finally through the bed or bottom channel I to the chief channel, G, H, J.
From Figure 3, which represents the section through the air-chamber, it will
be seen how the air enters from without, takes its preliminary heating course
between the combustion chambers, and how and where it meets the gases.
Under the furnace bottom channels. G are the cooling channels, and between
these under the air chamber; air collecting channels, which are connected with
the cooling channels by means of small side channels.
Moreover, a supply of air for each half of the furnace walls is arranged by
means of the furnace cover above the air chamber. This supply is carried down-
wards in two divisions, the one running into the air tubes or passages which
have their small outlet openings below, whilst the second lying more towards the
middle of the furnace conveys the entering air under as far as the air-
collecting channel in order to supply the middle of the furnace with more air,
as required, as well as to enable the middle of the furnace to be kept somewhat
cooler by introducing air from without. Beyond this the first air tube or
passage for the reception of air from without is separated from the following
ones, and conveys the air (adjustable by slide from outside) likewise under to
the air collecting channel below the air-tubes. This air like that in the middle
(above) conducted downwards, is intended to furnish assistance, and to render it
possible to keep the heads of the furnaces cool. The movement of the air
is as follows:
-
The air entering below through small slots in the air tubes corresponds with
the first third of the gas circulation from above downwards, so as to reach the
gas tubes or passages above by means of small holes in each tube.
As the gas
enters the tubes of the combustion chamber at this spot, the gas circulation
beginning here meets the air first preliminarily heated between the combustion
chambers.
The second third of the air course receives the outer air from above, so that
here, inversely to the course of the gas, the air enters above through the air
tubes, and below through the small holes, preliminarily heated, meeting at
this spot the gases coming upwards.
The third third of the air tubes receives its air again, like the first, from the
air collecting channel below by means of small slots, so that the air enters beneath
and arrives above in a preliminarily heated condition, through small holes, here
meeting the gases moving downwards in order to be drawn together therewith
to the furnace bottom channel, the flue and the principal channel.
Figure 4 shows views in sectional elevation of a furnace B with the open draw
pipe for the condensation, two furnaces in section taken through a gas collecting
channel with furnace closed by the closing "Senksteine," finally the corner of
the furnace front with two furnaces and the cramp bearers with the inlet openings
for the air in the wall "heads," the gas collecting_channels D running along
the masonry, extending to the connecting channel K, which connects the three
gas collecting channels of all 10-15 furnaces, and carries away the excessive
gases to the excess shaft L, to the principal channel, or elsewhere for other
purposes, for example, in the manner well known. This shaft can be more or less
closed by means of a register and allows of a larger or smaller quantity of gas

page_text: being furnished, thus purifying the latter as well as regulating its heating
course.
Figure 5 furnishes the section corresponding to Figure 4 horizontally through
the level of the gas collecting channels.
Figures 1 to 5 show moreover the special arrangement of the chief features of
the invention eiz.: The three collecting channels for receiving the direct
battery" gases, the return gases from the condensation and the steam. The
arrangement of the return gas conduit R, G, L, with its branches in the cover
closing of the collecting channels, and the steam conduit pipe, which runs into
this at each gas branch, so that the steam acting in the manner of an injector
assists in conducting the gases to the collecting channels.
The object of the invention is by means of the mixture of gases from the
whole of the furnaces of a battery and a part. of the purified gases with an
addition of steam, to obtain a quantitative and qualitative source of heat, which
easily remains the same, for heating the walls of the furnace, so that the passages
of the combustion chambers with certain dimensions, do not receive first. more,
then less, now richer, now poorer gases, whence, as a further consequence, the
supply of air, and the whole process, can be effected uniformly without impedí.
ment.
The supply of steam serves for keeping the temperature in the collecting
channels precisely so low that any tendency to draw air into these channels is
avoided, and the course prescribed by the construction, to the heated combustion
passages, is more easily effected; moreover, the mechanical power of the steam
assists the drawing of a supply of air before the purified gas or the drawing of
the supply of purified gas, gives the same at once the direction towards the
nlet openings E to the gas flues, and prevents the possibility of the flame
turning (or being driven) back and of any danger from explosion. Finally, by
this association, or mixing of the gases, large quantities of purified gases are
obtained and saved for other purposes. It is obvious that these furnaces with
collecting channels will work without a supply of purified gases, that is, with
their direct gases only, without condensation, in which case, a large quantity of
un-burned gases are separated by the surplus (excess) register, and, by the
economical arrangement of the collecting channels, saved and reserved for other
purposes.
Finally, generator gases, instead of the purified gases, may be conveyed into
the collecting channels. for example, in the case of coal that is poor. in gas but
yielding much coke, or where the purified gases, as being more valuable for other
purposes, are to be substituted by generator gases, which can be produced from
the coke residues thus very cheaply.
The chief features of novelty in my invention are:-
In collecting-channels situated above a "battery" of coke furnaces and running
along the same, the arrangement that these collecting channels:-
1. Will not exhaust all the furnace gases, whilst the latter are applied to the
obtaining of bye products, (or for bye purposes).
2. Take up a quantity of purified gases from the condensation arrangement
according to the heating requirements of the furnaces, and
*
3. An addition of steam, and convey this in a mixed state to the gas flues
of the circulating arrangements, which beginning from the heads of the
furnace walls, is directed towards the middle of the wall and back through the
furnace bottom to the principal gas channels placed on both sides of the whole
group of furnaces, whilst the necessary air of combustion enters the gas flues
at the "wall points" of the gas circulating arrangement.
Dated this 16th day of August 1899
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Dr. Theodor v. Bauer,

page_text: Coke Furnaces Worked with "Battery" Gases and Steam Pre-
liminarily (previously) Mixed in Collecting Channels.
I, Dr. THEODOR V. BAUER, of 11, Manstein Strasse, Berlin, Germany, Engineer,
do hereby declare the nature of this invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement:-
_
The object of this invention is a coke furnace in which "battery" gases and
steam are preliminarily mixed in collecting channels in such a manner that the
furnace gases are more completely utilised and have a more uniform action.
The invention is illustrated in the drawing accompanying my Provisional
Specification, Figure 1 being a section through the furnace chamber. Figure 2
a section through the combustion chamber. Figure 3 a section through the air
chamber. Figure 4 an elevation. Figure 5 a horizontal section of Figure 4
through the level of the gas collecting channels.
The section Figure 1 is taken through the furnace chamber B with the four
mouth-holes a, the two openings M for exhausting the gases and the three
openings C in the three collecting channels D, further through the furnace bottom
channel G and the cooling channels, as well as the two chief, gas channels I with
the flues H.
Figure 2 represents the section taken through one of the combustion chambers
(gas circulation F), and shows how each wall between two furnaces has two of
these.
This section runs further through the three gas collecting channels D) as well
the openings connecting the collecting channels with the combustion chamber
(circulation E) sideways from the collecting channel, and extended upwards by
covered shafts, in order that it may be possible to regulate these openings.
The circulation of the battery gases mixed with steam in the collecting
channels is effected as follows:-
The gases flow out of the collecting channels D situated at the ends of the
furnace into the openings E at the side and adjustable by means of slides, through
two rows of passages or tubes downwards (4 in each case in the drawing).
Two rows are provided for the purpose of directing the gases more or less to
the end of the furnace by means of the inlet slide in E, thus eventually (in certain
cases) to bring rather more gas into the extreme outside four tubes or passages
than in the four adjoining ones. The previously (preliminarily) heated air flows
through the small holes at the beginning of the tubes to the inflowing gases and
then downwards, with the latter in a state of combustion. The entire circulation
of the air through the air chamber situated between two combustion chambers
(Figure 2) is illustrated by the sectional view Figure 3. The gases pass below
to the five tubes of the second division and again receive from below. through the
small holes. an addition of preliminarily heated air of combustion. striking
upwards with these in a state of combustion, in order to reach the third and las!
division of six tubes, there again to receive through small openings the last air
of combustion and at the same time an addition from the middle channel D,
through the outflow opening E. In this third and last division of the passages
or tubes the gases flow with the last of the air downwards to the level of the
bottom of the channel under a furnace, run under the furnace bottom (or bottoni-
plate), which is here connected with the combustion chambers by means of
six slots (Figures 1 and 2) and strike under the bottom of the furnace bottom
(or bottom-plate) into the bed or bottom channel G from the middle of a
furnace to the end, and through the adiustable flue H to one of the chief gas
channels J, which conducts it below the boiler and to the principal chimney.

page_text: The products of combustion are thus drawn downwards, upwards, downwards,
and finally through the bed or bottom channel & to the chief channel, H, J.
From Figure 3, which represents the section through the air-chamber, it will
be seen, how the air enters from without, takes its preliminary heating course
between the combustion chambers, and how and where it meets the gases.
Under the furnace bottom channels G are the cooling channels, and between
these, under the air chamber air collecting channels, which are connected with
the cooling channels by means of small side channels.
Moreover, a supply of air for each half of the furnace walls is arranged by
means of the furnace cover above the air chamber. This supply carried down-
wards in two divisions, the one running into the air tubes or passages which
have their small outlet openings below, whilst the second lying more towards the
middle of the furnace conveys the entering air under as far as the air collect-
ing channel in order to supply the middle of the furnace with more air, as
required, as well as to enable the middle of the furnace to be kept somewhat
cooler by introducing air from without. Beyond this the first air tube or
passage for the reception of air from without is separated from the following
ones, and conveys the air (adjustable by slide from outside) likewise under to
the air collecting channel below the air tubes. This air like that in the middle
(above), conducted downwards, is intended to furnish assistance, and to render it
possible to keep the heads of the furnaces cool. The movement of the air
is as follows:-
The air entering below through small slots in the air tubes corresponds with
the first third of the gas circulation from above downwards, so as to reach the
gas tubes or passages above by means of small holes in each tube. As the gas
enters the tubes of the combustion chamber at this spot, the gas circulation
beginning here meets the air first preliminarily heated between the combustion
chambers.
The second third of the air course receives the outer air from above, so that
here, inversely to the course of the gas, the air enters above through the air
tubes, and below through the small holes, preliminarily heated, meeting at
this spot the gases coming upwards.
The third third of the air tubes receives its air again, like the first, from the
air collecting channel below by means of small slots, so that the air enters beneath
and arrives above in a preliminarily heated condition, through small holes, here
meeting the gases moving downwards in order to be drawn together therewith
to the furnace bottom channel, the flue and the principal channel.
Figure 4 shows views in sectional elevation of a furnace B with the open draw
pipe for the condensation, two furnaces in section taken through a gas collecting
channel with furnace closed by the closing or locking stone, finally the corner of
the furnace front with two furnaces and the cramp bearers with the inlet openings
for the air in the wall "heads," the gas collecting channels 1), running along
the masonry extending to the connecting channel K, which connects the three
gas collecting channels of all 10-15 furnaces, and carries away the excessive
gases to the excess shaft L, to the principal channel, or elsewhere for other
purposes, for example, in the manner well known. This shaft can be more or less
closed by means of a register and allows of a larger or smaller quantity of gas
being furnished, thus purifying the latter as well as regulating its heating
course.
Figure 5 furnishes the section corresponding to Figure 4 horizontally through
the level of the gas collecting channels.
Figures 1 to 5 show moreover the special arrangement of the chief features of
the invention viz.: The three collecting channels for receiving the direct
"battery" gases, the return gases from the condensation and the steam. The
arrangement of the return gas conduit R, G, L, with its branches in the cover
closing of the collecting channels, and the steam conduit pipe, which runs into

page_text: this at each gas branch, so that the steam acting in the manner of an injector
assists in conducting the gases to the collecting channels.
The object of the invention is, by means of the mixture of gases from the
whole of the furnaces of a battery and a part of the purified gases with an
addition of steam, to obtain a quantitative and qualitative source of heat, which
easily remains the same, for heating the walls of the furnaces, so that the passages
of the combustion chambers with certain dimensions, do not receive first more,
then less, now richer, now poorer gases, whence, as a further consequence, the
supply of air, and the whole process, can be effected uniformly without impedi-
ment.
The supply of steam serves for keeping the temperature in the collecting
channels precisely so low that any tendency to draw air into these channels is
avoided, and the course, prescribed by the construction, to the heated combustion
passages, is more easily effected; moreover, the mechanical power of the steam
assists the drawing of a supply of air before the purified gas or the drawing of
the supply of purified gas, gives the same at once the direction towards the
inlet openings E to the gas flues, and prevents the possibility of the flame
turning (or being driven) back and of any danger fron explosion. Finally, by
this association, or mixing of the gases, large quantities of purified gases are
obtained and saved for other purposes. It is obvious that these furnaces with
collecting channels will work without a supply of purified gases, that is, with
their direct gases only, without condensation, in which case, a large quantity of
un-burned gases are separated by the surplus (excess) register, and, by the
economical arrangement of the collecting channels, saved and reserved for other
purposes.
Finally, generator gases, instead of the purified gases, may be conveyed into
the collecting channels, for example, in the case of coal that is poor in gas but
yielding much coke, or where the purified gases, as being more valuable for other
purposes, are to be substituted by generator gases, which can be produced from
the coke residues thus very cheaply.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is :-
In collecting channels situated above a "battery" of coke furnaces and running
along the same, the construction and arrangement herein before described and
as shown in the drawings, in such manner that these collecting channels:-
1. Will not exhaust all the furnace gases, whilst the latter are applied to the
ebtaining of bye products (or for bye purposes).
2. Take up a quantity of purified gases from the condensation arrangement
according to the heating requirements of the furnaces, and
3. An addition of steam, and convey this in a mixed state to the flues
gas
of the circulating arrangements, which beginning from the "heads of the
furnace walls, is directed towards the middle of the wall and back through the
furnace bottom to the principal gas channels placed on both sides of the whole
group of furnaces, whilst the necessary air of combustion enters the gas flues
at the wall points" of the gas circulating arrangement, substantially as set
forth.
R. CORE GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Dr. Theodor Bauer.