Year: 1888

page_text: Date of Application, 27th Feb., 1888
Specification Accepted, 29th Mar., 1888
Analogous Operations.
I, JAMES RILEY, General Manager to The Steel Company of Scotland, Limited, of
23 Royal Exchange Square, Glasgow, in the County of Lanark, North Britain, 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, that is to say :-
My said Invention has for its object to improve the construction or arrangement of
the regenerative chambers and parts connected therewith, of steel-making and other
regenerative furnaces, with the view of enabling such furnaces to be worked for longer
periods without it being necessary to remove obstructions caused by drippings of slag
or fused materials from the passages, or by the deposition of dust from the gases
passing through the chambers.
In carrying out my Invention I employ devices which are susceptable of considerable
modification; and on five accompanying sheets of explanatory drawings there are
delineated various examples of my improved devices.
Figure, 1, 2, and 3, on sheet, 1, of the drawings are a longitudinal vertical section,
a transverse vertical section, and a horizontal section, showing one modification of
device for preventing the drippings of fused matter from the passages from choking
the reticulated brickwork in the chambers. Figures, 4, 5, and 6, on sheet, 2, are
similar views of another modification for the same purpose.
Figures, 7, and 8, on sheet, 3, are longitudinal and transverse vertical sections,
showing a device relating to the deposition of dust combined with the device shown
on sheet, 2, relating to fused drippings; and figures, 9, and 10, on the same sheet are
transverse vertical sections showing modifications of the dust device. Figures, 11,
and 12, on sheet, 4, are longitudinal and transverse and transverse vertical sections,
and figures, 13, and 14, on sheet 5, are horizontal sections showing an improved
arrangement of the regenerative chambers and passages in relation to the furnace,
combined with devices relating to the fused drippings, and deposition of dust.
In all the drawings the same reference letters are used to mark the same or like
parts wherever they are repeated.

page_text: In the apparatus shown on sheet, 1, the regenerative chambers, G, A, for gas and
air are supposed to have the reticulated brickwork arranged in them in the ordinary
way. The used gases from the furnace, F, passing through the gas ports and
passages, gp, enter the gas chamber, G, at the top, and pass off from its bottom in the
usual way; but instead of passing down to the chamber, G, by two or more vertical
passages, they pass down a single vertical passage entering the middle of its top.
Below the vertical passage, gp, there is placed a dish or receptacle, K, of fireclay and
lined with gannister to catch any fused materials which may drip down the passage.
At the same time the receptacle, R, prevents the downward current of gases from
striking directly on the reticulated brickwork, but makes the current divide and
distribute itself towards the ends of the chamber, thereby insuring its more uniform
passage through the brickwork. The air ports in the furnace, F', communicate with
a passage, ap, which as will be understood by comparing figure, 3, with figures, 2,
and 1, has a curved part at the top, whence a vertical part descends so as at its lower
part to be at one end of the air chamber, A. The air passage, a p, communicates
with the air chamber, A, in the manner shown in figure, 5, on sheet, 2, namely by a
port or opening, P, near the top of one end of that chamber, the vertical part of the
passage, ap, being continued down below that port and its bottom part forming
receptacle, R, for dust or for any fused matter which may drip down the passage.
In the modification shown on sheet, 2, the gas and air chambers, G, A, are transposed
in position as compared with the arrangement shown on sheet, 1; and the top part of
the air passage, a p, is straight across instead of being curved. In figure, 4, an
ordinary arrangement of the gas chamber, G, and gas passage, gp, are shown, but it
may be constructed or arranged according to any of the modifications hereinafter
described.
a
In the modifications shown in figures, 7, and 8, sheet, 3, the construction of the
passages, gp, and, a p, communicating between the furnace, F, and the reverberatory
chambers, G, A, for gas and air, is such that the vertical parts of the passages com-
municate each with one end of its chamber. The air and gas ports in the furnace, F,
communicate with transverse horizontal portions of the passages, gp, a p, which are
continued in vertical portions leading down to the chambers, G, A. These chambers, G, A,
are represented as placed transversely in the usual way as regards the furnace; they
are made longer than the portions to be occupied by reticulated brickwork, and (in
the modification shown in figures, 7, and 8) there is in each chamber a partition, T,
dividing off a space directly below the passage, gr, or a p, which space forms a
receptacle, R, for fused drippings or dust. The chambers, G, A, communicate with
the passages gp, a p, by openings, P, at the tops of the partitions, T. The
outlets, L, for the used gases when passing from the reverberatory chambers, G, A,
(and which are the inlets for the gas and air into those chambers when the currents
are reversed) are at the bottoms of the ends of the chambers furthest from the com-
munications of the passages, gp, a p, leading to the furnace. When the port, P, is
have the
as shown in figures, 7, and 8, at the top of one end of a chamber
reticulated brickwork arranged as shown in figure, 8, with a middle part of it
built more closely together so that the current of gases may be divided and become
more uniformly distributed over the brickwork. And the half of the brickwork
nearest the passage, L, which is at the bottom, is in each case supported on arched
pieces, N, arranged with interstices to give passage to and from the brickwork above
them, and leaving a clear space beneath in which the gases passing from the chamber
may collect, and from which the gas or air entering may be distributed over the
brickwork.
In the modified reverberatory chamber shown in figure, 9, the partition, T, is
made with a number of ports, P; and a vertical space, Q, is formed at the other end
of the chamber in cominunication with the passage, L, the reticulated brickwork
being built so as to occupy the chamber from top to botton between the partition, T,
and the space, Q. With this arrangement the gases will pass horizontally across
the reticulated brickwork. The partition, T, may be dispensed with as shown in
figure, 10, thus giving a little more space for the reticulated brickwork,

page_text: In the regenerative furnace shown on sheets, 4, and 5, of the drawings, the
regenerative chambers, G, A, are placed longitudinally beneath the furnace, F,
two chambers, one for gas and the other for air, being placed side by side under
each end of the furnace. The ports in the furnace, F, communicate by transverse
passages with the tops of vertical passages, gp, and a p, on opposite sides at the
ends of the furnace, these vertical passages leading directly down each to an outer
end of a reverberatory chamber, G, A. The outer ends of the reverberatory
chambers, G, A, are divided off by partitions, T, to form receptacles, R, for fusod
drippings or dust, ports, P, at the tops of the partitions communicating with the
reticulated brickwork in the chambers. The reticulated brickwork is supported on
longitudinal pieces set on edge and crossed by openly arranged transverse pieces,
so as to form clear spaces, S, under the whole of the brickwork, for the collection
of out-going gases or for the distribution of in-coming gas and air. At the
bottoms of the inner ends of the reverberatory chambers, G, A, transverse passages, V,
are formed in communication with the bottom spaces, S, and leading to the place, W,
where the usual reversing valves are placed. Any of the herein described arrange-
ments of the reticulated brickwork may be adopted in the longitudinally placed
chambers as well as in those placed transversely.
When the reticulated brickwork in the regenerative chambers, is arranged according
to any of the modifications shown in the accompanying drawings and hereinbefore
described, the gradual deposition of dust may go on for a much longer time than with
existing arrangements before so much obstruction to the passage of the gases will be
caused as to necessitate the stoppage of the furnace for clearing out operations; and
the same may be said as regards the improved provision of receptacles hereinbefore
described for fused drippings from the passages communicating between the furnace
and the regenerative chambers.
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 :-
1-In steel-making and similar regenerative furnaces, providing receptacles to
received fused drippings or dust from the communicating passages, and to prevent
such drippings from choking the reticulated brickwork in the regenerative chambers,
substantially in the improved manner hereinbefore described.
2-In the regenerative chambers of steel-making and similar furnaces arranging
the reticulated brickwork substantially in any of the improved modes herein before
described and shown in the accompanying drawings, and especially providing spaces
at the end of the brickwork for the collection of out-going used gases or the distribu-
tion of in-coming gas and air substantially as herein before described.
3-Arranging the regenerative chambers of a steel-making or similar furnace
longitudinally beneath the furnace substantially in the improved manner hereinbefore
described with reference to figures 11 to 14 of the accompanying drawings.
4-Combining the longitudinal arrangement of regenerative chambers beneath a
steel-making or similar furnace with receptacles for fused drippings or dust and with
any of the improved arrangements of the reticulated brickwork, substantially in the
manner hereinbefore described.
Dated this Twenty-fifth day of February 1888
EDMUND HUNT,
Applicant's Agent.