The Utilization of "Flue Dust" by Bri, Conction with Finely Divided Iron Ores or similar Substances, such as Pyrites Residues, Purple Ore, and the like, for Use in the Blast Furnace.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
The Utilization of "Flue Dust" by Incorporating it into Briquettes
either Alone in its Natural State, or in a Concentrated State, or in
Conjunction with Finely Divided Iron Ores or similar Substances,
such as Pyrites Residues, Purple Ore, and the like, for Use in the
Blast Furnace.
I, WILLIAM THOMLINSON, Ironmaster, of Seaton Carew R.S.O., in the County
of Durham, do hereby declare the nature of this invention to be as follows:-
This invention relates to the manufacture of briquettes of "flue dust," iron
ore, purple ore, pyrites residues, and the like by using the said flue dust alone
in its natural or in a concentrated state or by incorporating therewith certain
proportions of iron ore, purple ore, or pyrites residues and the like, and grinding
or mixing or amalgamating the same together for use in the blast furnace.
At all blast furnaces, the gases effluent carry away with them numerous small
particles, consisting of carbonaceous matter, limestone, and finely divided iron
ore. These collect in the tubes or flues, and are found in some cases to contain
as much as 40 % and upwards of metallic iron. The accumulation is moved
periodically and has always been considered as absolute waste, and so disposed of.
The object of my invention is to utilize this "flue dust" by incorporating it
into briquettes, alone or in conjunction with finely divided iron ores or similar
substances such as pyrites residues, purple ore and the like, whereby it is ren-
dered capable of being treated for its metallic contents instead of being wasted,
as has heretofore been customary.
In carrying out my invention I take the "flue dust" and use it either alone
or if mixed with other substances primarily as a binding material by incorporating
10 % or 20% or more according to circumstances with purple ore or residues
to form briquettes which are either burnt in the usual way after being dried or
as may be the case conveyed directly to the blast furnace after being dried, for
the purpose of being smelted. I find that owing to the combination of the
various elements, it forms a good binding material, and by mixing it with finely
divided ores or the like this binding property is utilized, but chiefest of all the
valuable iron contents are secured and combined into such a form that they can
be safely and advantageously used in the smelting furnace.
Dated th;. 1941
1000
G. J. CLARKSON,
Chartered Patent Agent, Stockton-on-Tees and Hull,
Agent for the Applicant.

page_text: The Utilization of Flue Dust" by Incorporating it into Briquettes
either Alone in its Natural State, or in a Concentrated State, or in
Conjunction with Finely Divided Iron Ores or similar Substances
such as Pyrites Residues, Purple Ore and the like, for Use in the
Blast Furnace.
I, WILLIAM THOMLINSON, of Seaton Carew R.S.O., in the County of Durham,
Ironmaster, 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 treatment of blast furnace "flue dust" to be used
in the manufacture of briquettes and consists in using the said "flue dust" alone
in its natural or in a concentrate state or by incorporating therewith certain
proportions of iron ore purple ore or pyrites residues and the like and grinding
or mixing or amalgamating the said together for use in the blast furnace.
At all blast furnaces the gases effluent carry away with them numerous small
particles consisting of carbonaceous matter, limestone and finely divided iron
ore. These collect in the tubes or flues and are found in some cases to contain
as, much as 40 % and upwards of metallic iron. The percentage of metallic iron
may be largely increased by concentration in the usual way particularly when the
iron bearing particles are magnetic. The accumulation is moved or disturbed
periodically and has always been considered as absolute waste and so disposed of.
The object of my invention is to utilize this "flue dust" by incorporating it
into briquettes alone or in conjunction with finely divided iron ores or similar
substances such as pyrites residues purple ore and the like whereby it is rendered
capable of being treated for its metallic contents instead of being wasted as has
heretofore been customary and in some cases it is advantageous to incorporate
the "flue dust" in a concentrated state thereby largely increasing the percentage
of metallic iron particularly where the iron bearing particles are magnetic. In
carrying out my invention I take the "flue dust" and use it either alone or if
mixed with other substances primarily as a binding material by incorporating
10 % to 20% or more according to circumstances and in a concentrated or
unconcentrated state as the case may be with purple ore or residues to form
briquettes which are either burnt in the usual way after being dried or as may
be the case conveyed directly to the blast furnace after being dried for the purpose
of being smelted. I find that owing to the combination of the various elements
it forms a good binding material and by mixing it with finely divided ores or
the like this binding property is utilized but chiefest of all the valuable iron con-
tents are secured and combined into such a form that they can be advantageously
used in the smelting furnace.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is:
-
In connection with blast furnaces
(1) The manufacture of briquettes of iron ore, purple ore, pyrites residues, and
the like by incorporating therewith certain proportions of "flue dust," and
grinding, mixing or amalgamating the same together in the usual well known
way, substantially as described.
(2) The utilization of "flue dust" by incorporating it in a concentrated or un-

page_text: concentrated state in the form of briquettes with or without an admixture of iron
ore, purple ore, pyrites residues and the like whereby it is rendered capable of
being treated for its metallic contents instead of being wasted as has heretofore
been customary, substantially as described.
Dated this 9th day of Hahnuo 1900
G. J. CLARKSON,
Chartered Patent Agent, Stockton-on-Tees & Hull,
Agent for the Applicant.