Improvements in Coke Ovens and in the Method of Working them.
Year: 1891

page_text: Date of Application, 8th May, 1891-Accepted, 13th June, 1891
Improvements in Coke Ovens and in the Method of
Working them.
I, RICHARD DE SOLDENHOFF, of 91 St. Mary Street, Cardiff, in the County
of Glamorgan, 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 invention has for its object improvements in that class of coking ovens known
as the Coppée ovens, and relates to means whereby greater regularity of working
and greater rapidity of coking are obtained.
In the Coppée ovens as hitherto constructed, the ovens have been connected
together and worked in pairs, that is to say, the gases of two ovens have been
caused to mingle together in the horizontal flues below the floors of the ovens, and
thereby heat the two horizontal flues underneath the same.
Now according to my present invention I propose to connect four or more ovens
together, so that the gases from any oven of the group may run through flues or
passages at the upper parts of the ovens and mingle with the gases generated in
other ovens of the group and heat their side walls, after which they pass into the
flues under the ovens and circulate as in the original Coppée ovens, with the exception
herein stated.
The accompanying drawings represent a bench of Coppée ovens, in which
ovens 1 and 2, 7 and 8, and 9 and 10, are worked together in pairs as in the original
Coppée ovens, whilst ovens 3, 4, 5 and 6 are connected together so as to work in a
group according to my present invention.
Figure 1 is a vertical cross section of a bench of Coppée coking ovens drawn on
the line 1, 1, of Figure 2.
Figure 2 is a horizontal section drawn on the line 2, 2, of Figure 1, and
Figure 3 is a longitudinal section drawn on the line 3, 3, of Figure 1.
The figures 1 to 10 inclusive represent the coking ovens, a to a¹ represent flues
or passages in the crowns or arches thereof, which communicate with the flues in
the side walls marked 6 to 68 and permit of the passage of gas from any oven of
the group to any other oven of the group. c to represent the gas flues under the
floors of the ovens, d, d represent short cross flues connecting the flues c to c in
pairs. e, e, are short vertical flues connecting the gas flues c¹ to 8 with the flues f, f,
leading to the main flue g, whilst the spaces x, Figure 2, represent short flues which
connect the end gas flues c, c with the lower horizontal flues a¹ in the outer side
walls of the ovens 1 and 10. The flues ¹ communicate at one end with the upper
horizontal flues x2, and the gases, after traversing this latter from one end to the
other, descend by the vertical flues ³ into the end flues f1, f', from which the gases
pass directly into the main flue g. h, h are air flues which, by vertically descending
flues i, i, lead the air into the various horizontal air flues or arches j, j, from which
the air is led by short vertical flues k, k, into horizontal air flues 1, 1, where it
becomes heated; the air flues 1, 1, are connected together by short cross flues 1, 1,
and the heated air, after traversing such flues 1, 1, passes therefrom by vertical
flues m, m, into horizontal flues n, n, passing over the tops of the ovens, whence
the heated air is distributed to the ovens and side walls through passages or
flues n', n¹.
The general arrangement of the flues as above described is well known, and the
ovens 1 and 2, 7 and 8, and 9 and 10, are worked in pairs in the usual manner; for
instance, the gases of each of said pair pass into the side walls b, b1, bº, 67, 68, of
said ovens and mingle together in the horizontal flues c, c¹, c³, c², c, c, under the

page_text: same, but the group of ovens 3, 4, 5, 6 is worked according to my invention in the
following manner.
The connection of these ovens with each other and with their side walls is
established through the flues or passages a³ to aº, by which means the gases of any
oven of the group 3, 4, 5 and 6 may run through any of the flues or passages a³
to a and mix with the gases from any other oven or ovens of the group. In order
to describe clearly the course of the gases from ovens 3, 4, 5 and 6, I will assume
that ovens 3 and 4 have just been charged, whilst ovens 5 and 6 have been working
already say 6 hours.
In this case ovens 3 and 4 are colder than ovens 5 and 6, and for this reason some
of the gases from ovens 5 and 6 will immediately pass through the flues or
passages a, a, a into the flues or passages a, a' and mingle with the gases generated
in the ovens 3 and 4 and heat their side walls 12, 13, further mingling again in the
flue c³ and then passing into the flue 2. What applies to ovens 3 and 4 also applies
to ovens 5 and 6, when, at a later period, say 12 hours, they will have given out
the greater bulk of their gases and ovens 3 and 4 have come into full work.
In this latter case the excess of gases in ovens 3 and 4 will get through flues
or passages a³, a³, a³, a³, a', a and a into the side walls 4, 65, of ovens 5
and 6.
It will be understood that up to a certain point the larger the number of ovens
connected together in the manner described with respect to ovens 3, 4, 5 and 6, the
greater will be the regularity of their working and the greater will be the rapidity
in coking.
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 coking ovens of the character herein referred to, the connection and working
of more than two ovens in a group, substantially as herein shown and described
with respect to ovens 3, 4, 5 and 6, and for the purpose stated.
1
RICHARD DE SOLDENHOFF.
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.