Improvements in or connected with the Combustion of Fuel, such as Coal, and Apparatus therefor.
Year: 1897

page_text: Date of Application, 14th July, 1897
Complete Specification Left, 8th Dec., 1897-Accepted, 19th Feb., 1898
PROVIDIUNAL DEVICATION.
Improvements in or connected with the Combustion of Fuel, such as
Coal, and Apparatus therefor.
I, EMIL POLLACSEK, of Podmanitzkygasse, 6, Budapest, Hungary, Engineer, do
hereby declare the nature of this invention to be as follows:
It is a well known fact that all kinds of coal contain a greater or less percentage
of sulphur. In the combustion of coal, the sulphur burns, a portion of it becom-
ing converted into sulphurous anhydride i.e. sulphur dioxide, which is technically
known as "injurious sulphur," owing to the fact that it has a destructive action
upon the materials of which steam boilers are constructed, and is also injurious
to the health of men, animals and vegetation.
Now this invention has for object to obviate this drawback, and also at the same
time to increase the heating effect of the coal used. For this purpose the gases
of combustion are caused by suitable means to come in contact in a combustion
chamber with lime water or lime milk or other base. The lime water or the like
is or may be supplied continuously in proportion to the amount of sulphurous
anhydride produced, the arrangement being such that the absorbing liquid in an
extremely finely subdivided state comes in contact with the oxidising part as well
as with the reducing part of the flame. In this way, the sulphurous anhydride
enters into combination and escapes into the chimney as a non-injurious sulphur
compound whilst any excess of water in. passing over the incandescent coal becomes
decomposed into water gas which is burnt and thus increases the effect of the
combustion. The smaller particles of coal are compelled to burn by reason of the
continuous moistening of the upper portion of the flame in the combustion
chamber, and thus there arises a not unimportant source of useful effect.
In carrying out my invention I employ apparatus or devices of extremely simple
construction and arrangement such as is illustrated in the accompanying diagram-
matic drawings in which Fig. 1 is an elevation and Fig. 2 a plan.
I, I are steam boiler furnaces; and R is a reservoir of wood or iron, made in two
parts, and provided with a cover, and in which the reaction or absorption liquid is
prepared. This liquid passes through the pipe n either direct, or through a filter
box F, into an ejector apparatus A. operated by the admission thereto of steam
supplied by a pipe n¹. The liquid passes thence into the several furnaces through
suitable spraying nozzles in the form of spray which comes in contact with the
oxidizing part and also the reducing part of the flame.
This apparatus enables the issuing liquid to be kept at a temperature of say
70° C, which may, if desired, be raised to boiling point.
Any
The pressure gauge M and the reducing valve S are safety appliances.
choking of the spraying nozzles is removed by shutting off the supply of liquid
through n and allowing only steam to pass through.
1007

page_text: Improvements in or connected with the Combustion of Fuel, such as
Coal, and Apparatus therefor.
I, EMIL POLLACSEK, of Podmanitz Kygasse, 6, Budapest, Hungary, 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:
-
It is a well known fact that all kinds of coal contain a greater or less percentage
of sulphur which in the combustion of the coal, also burns, a portion of it becom-
ing converted into sulphurous anhydride i.e. sulphur dioxide, which is technically
known as "injurious sulphur," owing to the fact that it has a destructive action
upon the materials of which steam boilers are constructed, and is also injurious
to the health of men, animals and vegetation.
Now this invention has for object to obviate this drawback, and also at the same
time to increase the heating effect of the coal used. For this purpose the gases of
combustion are caused by suitable means to come in contact in a combustion
chamber with lime water or lime milk or other base. The lime water or the like
is or may be supplied continuously in proportion to the amount of sulphurous
anhydride produced, the arrangement being such that the absorbing liquid in au
extremely finely subdivided state comes in contact with the oxidising part as well
as with the reducing part of the flame. In this way, the sulphurous anhydride
enters into combination and escapes into the chimney, as a non-injurious sulphur
compound whilst any excess of water in passing over the incandescent coal becomes
decomposed into water gas which is burnt and thus increases the effect of the com-
bustion. The smaller particles of coal are compelled to burn by reason of the con-
tinuous moistening of the upper portion of the flame in the combustion chamber,
and thus there arises a not unimportant source of useful effect.
In carrying out my invention I employ apparatus or devices of extremely simple
construction and arrangement such as is illustrated in the diagrammatic drawings
filed with my Provisional Specification and in which Fig. 1 is an elevation and
Fig. 2 a plan.
I, I are steam boiler furnaces; and R is a reservoir of wood or iron, having two
compartments, and provided with a cover, and in which the reaction or absorption
liquid is prepared. This liquid passes through the pipe n either direct, or through
a filter box F, into an ejector apparatus A, operated by the admission thereto of
steam supplied by a pipe n¹. The liquid passes thence into the several furnaces
through suitable spraying nozzles in the form of spray which comes in contact
with the oxidizing part and also the reducing part of the flame.
This apparatus enables the issuing liquid to be kept at a temperature of
say 70° C. which may, if desired, be raised to boiling point.
The pressure gauge M and the reducing valve S are safety appliances. Any
choking of the spraying nozzles is removed by shutting off the supply of liquid
through n and allowing only steam to pass through.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what I
claim is;-
-
The herein described method of causing sulphurous anhydride produced in the
combustion of coal to enter into chemical combination and thus to be rendered
non-injurious before the flame comes in contact with the body to be heated, by
blowing sprayed solutions of caustic lime or other bases into the combustion space

page_text: or chamber of a furnace or fire place, any excess of liquid being converted into
water gas, whereby the effect of the combustion is increased, as set forth.
Dated this 8th day of December 1897.
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.