Improvements in Means for Cremating and Destroying Obnoxious Gases and Fumes from Dust Destructors and the like.
Year: 1893

page_text: Date of Application, 15th Nov., 1893
Complete Specification Left, 15th Aug., 1894-Accepted, 15th Sept., 1894.
PROVISIONAL SPECIFICATION.
Improvements in Means for Cremating and Destroying Obnoxious
Gases and Fumes from Dust Destructors and the like.
I TOM WILLIAM BAKER of 25 Wormwood Street in the City of London
Engineer do hereby declare the nature of this invention to be as follows:-
--
Hitherto the waste gases and fumes from dust destructors, the burning of town
refuse and other chemical processes have been cremated by being passed through
or in contact with heat of a special furnace commonly called a cremator & so
destroyed & rendered innocuous, & my invention consists of the combination and
construction of steam boilers & their flues also their mode of setting in brickwork
so that the obnoxious gases shall be mingled with the steam boiler furnace gases in
what is known as the combustion space or where the furnace gases are the highest
possible temperature so attaining the above result. In some cases I prefer by use
of fans or other means to force the obnoxious gases from the destructors or other
sources into the closed ash pits or furnaces of steam boilers so burning the gases
with the fuel.
In carrying out my invention I prefer to use what is commonly known as a dry
back marine steam boiler with two or more furnaces and a common combustion
chamber to both so connecting them with the return tubes, and into this combustion
chamber the waste gases are introduced so that they meet with the hot gases
from the furnaces and are cremated, mingled with them, and absorbed for steam
generation in the tubes and outer shell of the boiler..
In wet back marine boilers the gases pass through suitable openings made
through the stayed space at the back of the combustion chamber or chambers with
the same result as before.
In Lancashire and Cornish boilers between and below the furnaces I insert
another tube similar to a three flued boiler but continuing only to the back of the
furnaces to which a connection is made so taking the waste gases to the combustion
spaces.
In water tube or other outside fired cylindrical boilers I prefer to use a double
back to the furnaces and to bring the waste gases into the combustion spaces
through the aperture between.
Improvements in Means for Cremating and Destroying Obnoxious
Gases and Fumes from Dust Destructors and the like.
I, TOM WILLIAM BAKER (late of 25 Wormwood Street in the City of London
but now) of Broad Street House in the City of London, 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:
Hitherto the waste gases and fumes from dust destructors, the burning of town
refuse and other chemical processes have been cremiated by being passed through
or in contact with the heat of a special furnace commonly called a cremator and

page_text: I
so destroyed and rendered innocuous and my invention consists of the combination
and construction of steam boilers and their flues also their mode of setting in
brickwork so. that the obnoxious gases shall be mingled with the steam boiler
furnace gases in what is known as the combustion space or where the furnace gases
are the highest possible temperature so attaining the above result.
In some cases I prefer by use of fans or other means to force the obnoxious
gases from the destructors or other sources into the closed ashpits or furnaces of
the steam boilers so burning the gases with the fuel.
In carrying out my invention I prefer to use what is commonly known as a dry
back marine steam boiler with two or more furnaces and a common combustion
chamber to both, so connecting them with the return tubes, and into this combustion
chamber the waste gases are introduced so that they meet with the hot gases from
the furnace and are cremated, mingled with them and absorbed for steam generation
in the tubes and outer shell of the boiler.
In wet back marine boilers the gases pass through suitable openings made
through the stayed space at the back of the combustion chamber or chambers with
the same result.
In Lancashire and Cornish boilers, between and below the furnaces I insert
another tube similar to a three flued boiler, but continuing only to the back of the
furnaces, to which a connection is made so taking the waste gases to the combustion
врасе.
In water tube boilers or other outside cylindrical boilers I prefer to use a double
back to the furnaces and to bring the waste gases into the combustion space through
the aperture between.
Figure 1 and 2 of the accompanying drawings show the section of an ordinary
Lancashire boiler with my arrangement of their brick settings; 1 is the boiler
containing two flues, 2 the fire grate in dotted lines, 3 is the combustion chamber
4 is the flue from refuse destructor; in Figure 1 the gases from both furnaces meet
in the combustion chamber 3, pass down under the boiler, are divided at the front end
and return along each side to the chimney flue 5; in Figure 2 the gases from both
furnaces meet in the combustion chamber 3, are divided and pass along each side of
the boiler from thence into the one flue underneath the boiler to the chimney
flue 5, it will be seen that the mingling and destruction of the fumes will take
place in the combustion chambers.
Figure 3-1 is a section of a dry back marine boiler with two flues, and return
tubes 2,
2, 2, 2, 2, 2 the gases passing from the furnace through them to the front
smoke box 3 from thence to each side of the boiler to the chimney flue 8, 4 being
the furnace in dotted lines, 5 is the combustion chamber into which the gases from
the destructor furnace are conveyed by the flue 6, meeting with the boiler furnace
gases, the arch 7 being continually incandescent with heat assists to cremate and
destroy the fumes.
Figure 4-1 is an ordinary marine boiler with an aperture into the combustion
chamber 2 into which the destructor furnace gases are conducted by the flue 3,
4 being the furnace of boiler, in dotted lines.
Figure 5-1 is a water tube boiler, 2 is the furnace in same, 3 is the destructor
furnace flue, which may be at either end of the boiler, bringing the gases into
the boiler furnace behind the back 4; the gases mingling immediately above the
furnace 2, and amongst the water tubes 5, 5, 5, 5, 5, 5, 5 to the chimney flue 6.
This same application applies to any under-fired boiler; although I have shown
only such forms of boilers as are commonly in use by way of example, it is under-
stood these may vary in form numbers and positions.
Figure 6-1 is a Lancashire boiler with an additional flue 2, connected to the
two ordinary flues at 3 and 4; the gases from the destructor furnace entering this
flue through a suitable conduct 5 and mingling with the furnace 6 gases in the flue
and in the combustion chamber 7; thence to the chimney flue 8.
Any number of boilers may be attached to any number of destructors.

page_text: Having now particularly described and ascertained the nature of my said inveu-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination use and employment of ordinary steam boilers with their
furnaces also the use of refuse furnaces, destructors or the like, and the method of
connecting them by brick flues in order that any fumes from the destructor
furnaces shall be conducted into the combustion chambers of the boilers and there
destroyed; the waste heat being used to generate steam in the said boilers and
substantially as set forth in the accompanying drawings.
2. The combination use and employment of what are commonly known as a
Lancashire or Cornish steam boilers having a separate flue connected to the
ordinary flues in which the fumes from refuse furnaces may be conducted to the
combustion space substantially as described in Figure 6 of the accompanying
drawings.
3. The combination and employment of fans placed between refuse destructors
and the furnaces of steam boilers to draw the fumes from the destructors and force
the same into the boiler furnaces to be destroyed substantially as described. .
A
TEL 1. Ր A 1901