Improvements in Furnaces for Consuming, Deodorizing, and Rendering Innocuous Foul Air, Smoke, and Objectionable or Dangerous Gases generally.
Year: 1897

page_text: Date of Application, 20th Apr., 1897-Accepted, 26th June, 1897
VABIL DELE
Improvements in Furnaces for Consuming, Deodorizing, and
Rendering Innocuous Foul Air, Smoke, and Objectionable or
Dangerous Gases generally.
I, SEYMOUR GREEN SMITH, (Promoter), of 1016 Putnam Avenue, Plainfield,
in the County of Union and State of New Jersey, United States of America,
do hereby declare the nature of my invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
The invention relates to smoke and gas consuming furnaces; and it has for its
object to provide a furnace which is simple in construction, very effective in
operation, and designed for consuming and destroying foul air and odours generated
in gas works, slaughter houses, lime kilns and in all factories and places where
objectionable or dangerous gases are generated; also to consume all smoke
produced by any kind of fuel such as soft coal, shavings, sawdust or wood, or
arising from the cremation of garbage or from blast furnaces, etc., without
permitting any of the smoke, gases, etc. to escape into the air.
The invention consists principally of a condensing and gasifying chamber
adapted to be heated, and formed with jet openings leading into the combustion
chamber of the furnace.
The invention also consists of certain parts and details and combinations of
the same, as will be fully described hereinafter and then pointed out in the
claims.
Reference is to be had to the accompanying drawings forming a part of this
specification, in which similar characters of reference indicate corresponding parts
in both the figures.
Figure 1 is a longitudinal section of the improvement on the line 1-1 of
Figure 2 and
Figure 2 is a transverse section of the same, on the line 2-2 of Figure 1.
In the brick work A of the furnace is arranged a fire box B, provided in its
bottom with a grate C, below which is arranged an ash-pit D. A fuel charge
door E leads to the fire box B, to permit of introducing coal or other fuel into
the fire box, to be burned on the grate C. The ashes passing through the
grate bars fall into the ash-pit D and can be removed therefrom from time to time
through an ash door E¹.
Into the ash pit D lead jet openings D¹ connected with a chamber D³ connected
by a pipe D with a suitable blast for insuring a sufficient introduction of air into
the ash pit and to the fuel burning on the grate C, to cause a proper combustion
of the fuel. The boiler F is supported in the usual manner in the brick work A,
and extends at its forward part into the fire box B, so that the burning fuel and
gases heat the boiler, while the products of combustion pass over the bridge wall G
under the boiler F, into a consuming chamber H arranged under the rear of the
boiler F and in the rear of the bridge wall G, and leading at its bottom part by
an opening 11 in the lower end of the wall 1 into a chamber J extending with its
upper end to the rear end of the boiler F, to permit the heat to pass through the
flues in the boiler and through said flues to the stack K, arranged at the forward
end of the boiler, as plainly indicated in Figure 1.
The foul air, smoke, gases and the like to be consumed, are passed by means of

page_text: a pressure blower L into the leg N₁ of a condensing and gasifying chamber N
formed in the top and around the brick work A, over the front part of the boiler F
as plainly shown in the drawings. This chamber N is formed with a second leg N
in the side of the brick work A opposite to that in which the leg N' is located.
The lower ends of the legs N₁, N' connect with longitudinally extending
chambers N, N4, respectively, formed in the sides of the brick work A, and connect
with each other at their rear ends by a transverse channel No, arranged in the
bridge wall G. From the side chambers N³, N₁, lead jet openings N° into the fire
box B a suitable distance above the grate C; and like jet openings N' lead from
the channel N' into the rear end of the fire box, as plainly indicated in the
drawings.
It will be seen that the foul air, smoke, gases and the like to be consumed and
forced into the condensing and gasifying chamber N, pass from the latter through
the jet openings N° and N' into the fire box B in a heated condition, to be burned
in the firebox with the fuel burning on the grate C. The foul products and the
gases generated in the chamber N are burned in the fire box B and chamber H,
from which the products of combustion (hot air) pass through the opening
the chamber J and through the flues in the boiler F to the stack K.
into
In order to utilize the heat of the gases in the consuming chamber H in addition
to heating the boiler F, I provide the said chamber, with a feed water pipe O,
preferably arranged in the form of a coil, and connected at its lower end O' with
a pump or other feed water supply. The upper end O2 of the coil of pipe extends
forwardly over the bridge wall G and under the boiler F, passes through the front
wall of the brick work into the lower end of the smoke stack K, to then connect
at with the water compartment of the boiler F.
It will be seen that by the arrangement described, the feed water, passed
through the pipe O is heated to a high. degree before it passes into the water
compartment of the boiler F. I prefer to introduce, live steam and air into
the condensing and gasifying chamber N, so that the steam and air are heated
to a high temperature and combine with the foul air, smoke and odours forced
through the chamber by the pressure blower L connected with the leg N'. In
the suction pipe L' of the blower L for the leg N¹ is arranged a valved air
inlet pipe L2 for drawing fresh atmospheric air into the said blower L, to mix
with the foul air. Steam is introduced into the chamber N by a pipe P,
preferably connected with the steam compartment of the boiler F, and discharging
into the outlet of the blower L. Thus, foul air, smoke or gases and fresh air
and steam are mixed and pass together into the chamber N. By this arrange-
ment, a highly combustible gas is generated within said chamber N, and the
gas passing through the jet openings N, N' is burned within the fire box B
with the fuel burning in the grate C. The intense heat thus generated by the
consumption of the gases, permits of heating the water in the boiler F very
quickly, so as to insure a high steam pressure in the boiler at a small consumption
of fuel on the grate C.
If the device is applied to large plants, a very large percentage of the fuck
can be saved, as the heat obtained by the burning of the gases in the fire box B
and chamber H is very great, and can be utilized for the purpose of heating the
water in the boiler and the feed water, before the latter enters the boiler. All
odours, smoke and the like, generated by burning or treatment of any vegetable,
mineral or organic matter, can be reduced to an inoffensive and practically sightless
substance, thereby removing any objectionable or dangerous odours or smoke now
passing into the air. It is well known that only about twenty-seven per cent. of
the actual combustion is utilized; but with my process a much larger percentage
is made effective, and consequently a larger saving in the coal consumed is
obtained.
By placing the pipe ☐ for the feed water in the gas consuming chamber H, 6
I am enabled to utilize the heat generated by burning the waste gases, and the pipe
cannot be fouled on the outside, as no cinders, soot or other solid particles come in

page_text: contact with said pipe, as all such solid matter is condensed and gasified in the
chamber N and burned in the fire box B and chamber H, as before described.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
:-
1. A furnace, consisting of a casing having a fire box in communication with
a consuming chamber, the casing also having a condensing and gasifying chamber
comprising two legs straddling the fire box, and communicating at their lower ends
with side chambers connected by a transverse channel, the chambers and channel
having jets delivering into the fire box, a boiler located above the fire box
and consuming chamber, a blower delivering into the condensing and gasifying
chamber, and a steam pipe leading from the boiler to the blower, substantially
as described.
2. A furnace, comprising a casing having a fire box, the furnace also having
a condensing and gasifying chamber having two legs straddling the fire box, each
leg communicating with a side chamber and the side chambers being connected
by a transverse channel, the chambers and channel having jet openings delivering
into the fire box, a boiler, a blower delivering into the condensing and gasifying
chamber, and a steam pipe passing from the boiler to the nozzle of the blower,
substantially as described.
3. A furnace, comprising a casing, having a fire box, a consuming chamber
divided from the fire box by a bridge-wall, the casing also having a condensing and
gasifying chamber leading to the fire box and a chamber rearward of the consuming
chamber with which the consuining chamber directly communicates, a boiler located
above the cousuming chamber and fire box, and receiving the products of
combustion from the chamber which communicates with the cousuming chamber,
a blower delivering into the condensing and gasifying chamber, and a steam pipe
leading from the boiler to the nozzle of the blower, substantially as described.
4. A furnace, comprising a casing having a fire box and a consuming chamber
in communication with the fire box, the furnace also having an additional chamber
rearward of the consuming chamber and directly communicating therewith, a
boiler located above the fire box, and consuming chamber and receiving the
products of combustion from the chamber rearward of the consuming chamber,
and a feed water pipe coiled within the consuming chamber, substantially as
described.
5. A furnace comprising a casing having a fire box and a consuming chamber,
the casing also having a condensing and gasifying chamber communicating with the
fire box, a boiler located above the fire box and consuming chamber, a feed water
pipe coiled within the consuming chamber, a blower delivering into the condensing
and gasifying chamber, and a steam pipe leading from the boiler to the blower,
substantially as described.
6. A furnace, comprising a casing having a fire box and a consuming chamber
divided by a bridge wall, the casing also having an additional chamber rearward
of the consuming chamber, and a condensing and gasifying chamber above the
fire box, the condensing and gasifying chamber having legs straddling the fire
box aud the legs respectively communicating with side chambers connected by
transverse channel, the side chambers and passage having jet openings
delivering into the fire box, a boiler located above the fire box and consuming
chamber, and a blower delivering into the condensing and gasifying chamber,
substantially as described.
a
Dated this 20th day of April 1897
A. M. & WM. CLARK,
53 Chancery Lane, London, Chartered Patent Agents.