A Process and Apparatus for the Manufacture of Soot, Lamp-black, and the like of any Required Specific Gravity.
Year: 1899

page_text: Date of Application, 16th July, 1899-Accepted, 26th Aug., 1899
A Process and Apparatus for the Manufacture of Soot, Lamp-black,
and the like of any Required Specific Gravity.
I, GOTTFRIED WEGELIN, of Rondorf, near Cologne, in the German Empire,
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:-
-
In the manufacture of lamp black and other soot of high specific gravity the
specific weight of the product may be varied within certain limits by the altera-
tion of the transverse area of the flame, effected through a peculiar manner of
admitting the air described in my specification under Letters Patent No. 12184
of 1898.
However it is rather difficult to obtain considerable variations of the specific
gravity of the product immediately as desired, the alterations requiring manipu-
lations which are difficult and consume time.
This invention relates to improvements in such processes and has for its object
the manufacture of soot and other lamp black of any desired specific gravity
mainly in such a manner that the conical flame of combustion (obtained by the
peculiar manner of admission of air referred to above,) which is of a high
incandescent temperature, is deprived of a part of its great heat in immediate
proximity to the throttling point of the transverse area of the flame, so that the
heat of which the flame of combustion is deprived regulates the specific gravity
of the product.
In order that the heat thus taken from the flame of combustion may be used
for some industrial purpose, the invention is conveniently carried out by
arranging a water reservoir or the like above the cone of the flame so that the
abstracted heat may be used for the production of steam. If soot of low specific
gravity is required, the water reservoir is arranged immediately around the flame
of combustion, in order to abstract a large quantity of heat; and when soot of
high specific gravity is required, the water reservoir is arranged further away
from the flame of combustion, so as to abstract less heat from the flame.
In the accompanying drawings apparatus for carrying out the invention is
illustrated diagrammatically.
Figure 1 illustrates the arrangement for producing lamp-black or other soot
of low specific gravity, and
Figure 2 illustrates the arrangement for producing lamp-black or other soot
of high specific gravity.
In Figure 1, the shell a of the furnace is formed, immediately above the
cone of the flame, as the fire tube of a steam boiler thus abstracting a great
amount of heat from the flame.
In Figure 2, the lower part of the shell a is made of fire-proof material c and
he flue is formed as the fire tube of a steam boiler only before the gases of
combustion enter the chambers.

page_text: Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed I declare that what
I claim is: -
1st. In a process for the manufacture of soot in which the specific gravity of
the product is determined by a peculiar admission of air with or without an air
blast, the abstraction of heat from the flame of combustion formed conically by
the annular admission of air in order to obtain lamp-black or soot of any desired
specific gravity.
2nd. Apparatus for carrying out the process claimed in Claim 1 in which the
flue or shell a of a furnace is formed as the fire tube of a steam boiler b in order
to utilise the heat abstracted from the flame for the production of steam.
FELL & JAMES,
Agents for the Applicant.