Improvements in Apparatus for Removing Impurities from Smoke.
Year: 1893

page_text: Date of Application, 21st Sept., 1893-Accepted, 21st Oct., 1893
COMPLETE SPECIFICATION.
Improvements in Apparatus for Removing Impurities from Smoke.
I, EDWARD EUGENE DULIER, of No. 27, Sloane Gardens, Chelsea, in the
County of London, Retired Military Officer, 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 my Specification No. 5908 of 1891 I have described means of removing
impurities from smoke by mixing the smoke with steam and then cooling the
mixture so as to condense the steam and cause deposit of the carbonaceous,
sulphurous and other matters carried in the smoke.
My present invention relates to a construction of apparatus for this purpose more
especially applicable for dealing with the smoke and products of combustion from
boiler and other furnaces. I shall describe this construction referring to the
accompanying drawings.
Figure 1 is a vertical section and Fig. 2 is a sectional plan of apparatus according
to my present invention for causing deposit of carbonaceous, sulphurous and other
impurities from the products of combustion of a furnace or set of furnaces.
Fig. 3 is a vertical section shewing a modification.
C is the flue from the furnace or set of furnaces. Between it and the chimney
shaft S, I construct a passage in the form of an inverted U, the limbs of" "which are
separated by a partition P. At the bottom of the ascending limb A, I place a steam
pipe B perforated with numerous holes along its upper side. At the top of the
descending limb DI place a water pipe W perforated with numerous holes along
its lower side.
The products of combustion ascend the limb A becoming mixed with the steam
from the pipe B which by ejector action promotes their flow. After passing over
the crown of the partition P they receive a shower of water from the pipe W which
condenses the steam and causes deposit of the carbonaceous, sulphurous and other
impurities from the products of combustion, which then pass away by the shaft S
comparatively freed from black and noxious matters. The deposited matters
collect with the water at the bottom of the limb D, whence they are carried away
by a drain E. The partition P is preferably made double as shewn, so that there
is little conduction of heat from A to D. As the gaseous fluid is in the descending
limb D colder and therefore denser than in the ascending limb A, the pre-
ponderance of the former adds to the force of the chimney draught. By increasing
the height of the limbs A and D this preponderance may be made sufficient to
produce the necessary draught without requiring a chimney for that purpose,
especially as the ascending steam in the one limb and the descending water in the
other limb aid in promoting the flow of the gaseous fluid. As shewn in Fig. 3 the
condensing and cooling limb may be made of metal to protect the masonary from
damp.
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 :-
Apparatus for removing impurities from smoke, consisting of a passage for the

page_text: smoke made in the form of an inverted U and provided with steam and water pipes
arranged in the limbs of the passage, substantially as described.**
Dated this 20th day of September 1893.
ABEL & IMRAY,
Agents for the Applicant.