The Application of Water-gas to the Manufacture of Iron and Steel in connection with Siemens and other Gas Furnaces.
Year: 1890

page_text: Date of Application, 20th May, 1890
Complete Specification Left, 20th Feb., 1891-Accepted, 2nd May, 1891
PROVISIONAL SPECIFICATION.
The Application of Water-gas to the Manufacture of Iron and Steel
in connection with Siemens and other Gas Furnaces.
.:')
I, SAMSON Fox, of Leeds Forge, Leeds, in the County of York, Civil
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has reference to the admixture of water-gas with the ordinary"
producer, or Siemens, gas, in such proportions that the elimination of the impurities,
either by oxidation or otherwise, may be more rapidly and efficiently performed,
and that the temperature necessary for the reduction of the metallic substances,,
and re-agents, employed in the furnace, may be more readily attained and efficiently,
maintained during the process.
In carrying out my invention I connect to any convenient place in the furnace,
or its accessories a jet, or jets, by means of which water-gas, or a mixture of gases,
is introduced into the furnace, each gas being controlled separately, so that the
proportions of the mixed gases may be varied to suit requireinents.
My invention may be applied to Siemens, puddling, crucible and other gas fired'
furnaces.
"4
COMPLETE SPECIFICATION....
The Application of Water-gas to the Manufacture of Iron and Steel
in connection with Siemens and other Gas Furnaces.
"
I, SAMSON Fox, of Leeds Forge, Leeds, in the County of York, Civil
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 has reference to the application of water gas to the manufacture
of, iron and steel in connection with Siemens and other gas furnaces by admixture
of the water gas with the ordinary producer or Siemens gas in such proportions
that the elimination of the impurities, silicon, phosphorus, sulphur, etc., either by
oxidation or otherwise, may be more rapidly and efficiently performed, and that the
temperature necessary for the reduction of the metallic substances and reagents
employed in the furnace may be more readily attained and efficiently maintained
during the process than can be done when using Siemens or producer gas alone.
In carrying out my invention I arrange in connection with any convenient part
of the furnace, or the flues, leading thereto, a jet piece or pieces, or nozzle or
nozzles by means of which a jet or jets of water gas, or a mixture of water gas and
producer gas; or water gas and Siemens gas; or water gas Siemens gas, and
producer gas, can be introduced into the furnace, the water gas being controlled by
a separate valve, and the other gases by the ordinary valve or valves now used in
connection with gas fired furnaces, so that the proportions of the gases in the
mixture may be varied to suit requirements.
My invention may be applied to Siemens, puddling, crucible, and other gas-fired
furnaces, as I will now proceed to explain by aid of the accompanying illustrative
drawings, whereof,
Fig. 1 is a sectional elevation of a Siemens gas furnace showing two convenient
alternative arrangements for introducing water gas jets.

page_text: Fig. 2 is a sectional plan of the same.
Figs. 3 and 4 are like views of a puddling furnace with similar arrangements for
introducing water gas jets.
Figs. 5 and 6 are two views illustrating the application to a crucible furnace.
In all the figures similar letters refer to like parts.
a is the furnace bed or bath; a¹ a² a firebrick lining, roof, and divisional walls;
b, b ports for the admission of air previously heated by being passed through the
checkers 62 62; c care ports through which producer or Siemens gas is admitted
after having been heated by being passed through the checkers 6363. d, d, d, d are
jet pieces or nozzles for the admission of jets of water gas supplied by the pipe d²
and controlled by a suitable valve e.
The charge having been placed in the bed or bath a, hot air and hot producer or
Siemens gas are respectively admitted through the one set of ports b and c to one
of the mixing chambers f where they combine with the water gas entering through
the corresponding jet pieces or nozzles d d d d and the mixture flows into the
furnace.
On reversing, the same operations will take place at the other side of the furnace,
hot air and hot producer or Siemens gas being respectively admitted through the
ports b and c to the chamber f at that side, and water gas being introduced through
the corresponding jet pieces or nozzles. For the sake of illustration I have in each
example shewn at one side an alternative arrangement adapted to admit the water
gas at the sides of the mixing chamber and near the mouth of the producer gas
port e by jet pieces or nozzles d¹, d', the water gas thus mixed with the producer
or Siemens gas and air then passing on to the furnace. As already stated in Figs. 3
and 4 the jet pieces or nozzles for water gas are shewn applied in the same alterna-
tive ways to a puddling furnace, and in Figs: 5 and 6 to a crucible furnace. But
it is to be noted that it will be usual in practice to introduce the water gas jets at
corresponding points at both sides of the furnace.
Although in the diawings I have only shewn two ways of introducing the water
gas jets, it will be evident this may be varied to suit requirement, for example the
water gas may be admitted through the roof of the bed or bath a, or through the
roof of the mixing chamber f.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
In the manufacture of iron and steel, the application of water gas in connection
with Siemens and other gas furnaces, as set forth, the admixture of water gas with
the ordinary producer or Siemens gas or with both these gases being effected
substantially in the manner and for the purposes hereinabove described with
reference to the illustrative drawings hereunto annexed.
Dated this 10th day of February 1891
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.Č., Agent for the Applicant.