Improvements in Furnaces.
Year: 1894

page_text: Date of Application, 13th Oct., 1894-Accepted. 24th Nov., 1894
Improvements in Furnaces.
I, ALFRED FÉLIX ALEXANDRE KINAUX, of Jupille, Liège in the Kingdom
of Belgium, 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 :-
This invention relates to the construction and arrangement of brickwork-furnaces
with passages whereby air can in regulable quantities be mixed in combustion
chambers with gases from blast furnaces and the said air and gases be heated by the
brickwork previously to their arrival in the combustion chambers.
In the accompanying drawings,
Figs. 1, 2, 3, and 4 illustrate the general arrangement of plant according to this
invention;
Fig. 1 being a vertical cross-section taken near the front of the furnace on the
line A-B of Fig. 2;
Fig. 2 a longitudinal vertical section taken through one of the combustion
chambers, on the line C-D of Fig. 1 ;
Fig. 3 a horizontal section on the line E-F of Fig. 1; and
Fig. 4 a front elevation showing the various doors, valves and sight-holes
provided in the front of the furnace;
Figs. 5 to 10 inclusive are enlarged detail-views to which reference will herein-
after be made.
C are two combustion-chambers separated from each other by a wall F in which
passages a, a, all, and all of serpentine form are provided for the passage (indicated
by the arrows marked 1) of the atmospheric air that it is desired to mix in the
chambers C with the blast furnace gases. These gases enter the furnace by pipes E
and reach the combustion-chambers C through brickwork passages G and G¹
situated at the sides thereof; the course of the blast furnace gases is shown by
the arrows marked 2. The products of combustion issue from the combustion-
chambers C through the exit branches D, as shown by the arrows 3.
The entry of air from the atmosphere into the serpentine passages a a', all all
is regulated by means of two valves A provided with a common seat-plate A¹ and
adapted to slide on a common rod A. This device is illustrated more clearly by
Figs. 5, 6, and 7, Fig. 5 being a front elevation and Figs. 6 and 7 cross-sections on
the lines A' B' and C₁ D' respectively of Fig. 5.
Working-holes B (Fig. 4) furnished with air-tight doors B₁ are provided at the
front of the furnace in order to give access to the passages G and G for cleaning
purposes. These working-holes are shewn in Figs. 8, 9 and 10, Fig. 8 being a
front elevation and Figs. 9 and 10 cross-sections on the lines A' B' and C*D*
respectively of Fig. 8.
Doors P, which are hinged to the front wall of the furnace and fit closely but
are not otherwise secured in position, afford access to the interior of the combus-
tion chambers C for cleaning and repairing purposes and serve at the same
time as safety valves for any explosions that may occur in the furnace. Glazed
sight-holes R are provided to allow of the observation of the progress of combus-
tion. It is advisable to surround the entire furnace with sheet-metal plates Q
which serve to strengthen the furnace and to prevent cold air from passing through
the external brickwork into the passages G.

page_text: Having now particularly described and ascertained the nature of the said inveu-
tion and in what manner the same is to be performed I declare that what I
claim is:-
1. A furnace provided with two combustion chambers separated by a wall in
which are provided passages of serpentine form adapted to convey air from the
external atmosphere to the said combustion-chambers for the combustion therein
of blast-furnace gases, substantially as hereinbefore described with reference to the
accompanying drawings.
2. The improved furnace for the combustion of blast furnace gases, constructed
and arranged substantially as described and shown.
Dated this 10th day of October 1894.
For the ADDIIcant.
:
Dated Cons for way of OctODEL 1991.
For the Anoùican..
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.
For the ADDIIcann
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.