Improvements in the Production of Coke, and Apparatus for that purpose.
Year: 1890

page_text: Date of Application, 24th Jan., 1890
Complete Specification Left, 24th Nov.. 1890-Accepted. 24th Feb. 1891
PROVISIONAL SPECIFICATION.
Communicated from abroad by REINHARD MANNESMANN and MAX MANNESMANN,
both of Remscheid, Bliedinghausen, in the Empire of Germany, Engineers.]
Improvements in the Production of Coke, and Apparatus for that
purpose.
I, OLIVER IMRAY, of No. 28, Southampton Buildings, Chancery Lane, in the
County of London, Fellow of the Institute of Patent Agents, do hereby declare
the nature of this invention to be as follows
:-
My invention relates to the production of coke in such a manner that the
distillation of the coal is effected by the passage through it of the gas produced in
a highly heated condition. For this purpose, I provide in combination with several
closed coke ovens a pair of regenerators or several pairs of regenerators, such as
are employed for regenerative gas furnaces, furnished with the necessary valves for
alternating the flow of the gaseous fluids through them.
At one time, one chamber of each pair of regenerators is being heated by the
combustion of a portion of the gaseous products of the coke ovens, while the other
chamber of the pair has passed through it another portion of these gaseous
products. The portion thus highly heated is caused to pass through the coals in
the coke oven or ovens, effecting distillation and producing coke. The circulation
of the gases in the manner described is preferably effected by steam injector jets in
the pipes or channels along which they are conducted.
Dated this 24th day of January 1890.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Production of Coke, and Apparatus for that
purpose.
I, OLIVER IMRAY, of No. 28, Southampton Buildings, Chancery Lane, in the
County of London, Fellow of the Institute of Patent Agents, 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 production of coke in such manner that the distilla-
tion of the coals is effected by the repeated passage of a part of the gaseous products
through highly heated generators from which it passes to the fresh coals. The
external heating is thereby rendered superfluous, the products are increased, and
the cost diminished.
For this purpose there are combined with one or several pairs of regenerators
several closed coke ovens. The regenerators being such as are usually applied for
regenerative furnaces and all being supplied with the necessary valves and passages
in order to alternately pass through them the current of gas and a flame for heating
the same.
This flame is best produced by the combustion of a portion of the produced gas
with air.
At certain intervals of time one chamber of each pair of regenerators is heated
by the combustion of part of the gaseous products of the coke ovens, while at
the same time the second chamber of the regenerator has passed through it a
second portion of the gaseous products of the coals which, by means of a propelling
Price 1

page_text: appliance such as for instance injectors, fans &c. is drawn off from the top of the
coke oven and passes through the heated regenerator from which it is propelled
into the lower part of the coke oven.
The portion of the gas which is thus highly heated is now passed through the
coals where it produces coke by distillation.
The accompanying drawing shews by way of example a vertical section of one
construction of the above described apparatus for producing coke.
A is the coke oven, which may be of any suitable construction, and which is
supplied at top with coal through the valve B and has its coked contents discharged
through door L at bottom. The oven communicates at top by a branched pipe CC
with the one end of two regenerators D D' which communicate at the other end
by a branched pipe E E with nozzles F F entering the lower part of the coke oven.
The branched pipes C and E are each provided with flap valves C¹ and E¹ by
means of which the one regenerator is put in communication with the coke oven
while the communication with the other one is cut off. A. steam or compressed air
injector G in the pipe C serves to produce a circulation of the gases given off at the
top of the coke oven through the regenerator which for the time being is in com-
munication with the coke oven, as for example D as shewn on the drawing, the
highly heated gases issuing from the lower end of the regenerator being partly led
back through the pipe E and nozzles F into the lower part of the coke oven where
they effect the distillation of the coal by their heat.
The regenerators also communicate with each other at each end by branched
pipes H I, which also communicate respectively at H' with a chimney flue and I'
with a supply of air. In each branched pipe is provided a flap valve JK by
means of which while the communication between the one end of each regenerator
is open, that between the other end is closed.
Assuming now that these valves are in the position shewn on the drawing
then a portion of the gases passing through the regenerator D will pass through
pipe I past valve K (which is only partially open in order to restrict the supply
of gas to the quantity required) and into the regenerator D¹; here the highly
heated gas meets with a supply of air entering through pipe l' and in entering
into combustion therewith, effects the heating of the regenerator, the products
of such combustion being made to pass away through branched pipe H and flue
pipe H¹.
When by this means the regenerator has been raised to the required heat,
the positions of all the valves CE J and K are reversed, and the gases given off*
from the top of the coke oven are now passed through regenerator D' taking up heat
therefrom and passing thence partly through the nozzles F into the coke oven
again and partly into the regenerator D, where they enter into combustion with air
for heating the same.
The excess of gas produced in the coke oven beyond that required for heating
the regenerators is led off through a pipe not shewn, to be utilised elsewhere.
With the above described method of operating when using coal rich in gaseous
constituents, all the gas is not used for producing the coke. The excess of gas can
therefore be employed for other purposes, as by-products.
If a second circulating apparatus is applied which sucks the hot distillation pro-
ducts through fresh coal, the decomposing tar serves for binding the particles of
coke firmly together. A firmer coke can thus be produced than under ordinary
circumstances without having to mix with the coal rich in gas a greater quantity of
ordinary coal.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The process for the production of coke by internal heating wherein a portion
of the coke gases are employed for transferring heat from a regenerator to the fresh
anal cubstantially as described

page_text: 2. The construction of coke ovens consisting of a combination of coke ovens of
ordinary construction with a steam injector or other means for propelling gases,
and regenerators, the said regenerators being heated by the combustion of a part
of the distilled gases, and the heat so stored up being transferred by another
portion of the distillation products to the coal contained in the coke-oven, substan-
tially as described.
Dated thin 24th day of November 1890.
ABEL & IMRAY,
Agents for the Applicant.