Refuse Consuming Furnace with Mechanical Transporter.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Refuse Consuming Furnace with Mechanical Transporter.
I, CARL WEGENER, of 14/15, Gitschinerstrasse, Berlin, in the German Empire,
Engineer, do hereby declare the nature of this invention to be as follows:-
-
This invention consists of a furnace for burning refuse in which the refuse
falls from the hopper upon the upper end of a sloping plane which is prolonged
to the middle of the furnace, where the said refuse is gradually transported
downwards by aid of a mechanical stirring device, and in which the speed of the
stirring device can be changed according to the requirements of the furnace.
The furnace is heated by a coal dust firing apparatus by means of which coal
dust mixed with air is deuvered into the furnace, the air supplied to the firing
apparatus being preferably heated before admission to the said apparatus by the
aid of the combustion gases. The furnace is provided with a hopper into which
the material to be burned is charged, and this hopper is connected by a branch
pipe with the pipe conducting the previously heated air to the firing apparatus
so that a portion of the air heated by the combustion gases is delivered into the
hopper, this for the purpose of drying the material previous to its being burned.
The lower end of the hopper opens towards the furnace, of which the floor in its
first part is an inclined plane developing into a nearly horizontal plane. For
the purpose of transporting downwards the refuse falling from the hopper on to the
inclined plane towards the horizontal part of the floor a series of bars is provided
arranged side by side with claws directed downwards which bars are operated by
eccentrics from a common driving shaft placed outside the furnace. This shaft
is preferably operated by means of a variable gear which can alter the speed
of the stirring bars and thus impart to the refuse a quicker or slower movement
downwards according to the operation of the furnace. To protect the said bars
from being burned the sloping plane is covered by pipes placed close to one
another through which water is passed.
In consequence of the sloping plane on which the refuse is conveyed to the
more horizontal part of the furnace floor, the furnace receives a lengthy form
which renders the construction of the roof and any repairs thereof which may
become necessary rather difficult. To provide for these difficulties the roof is
constructed of metal pipes slightly arched through which water is passed. These
pipes serve as girders between which suitably shaped and easily interchangeable
blocks of fire clay are supported.
The products of combustion leave the furnace through an outlet provided at
the end of the more or less horizontal part of the floor whilst the incombustible
portions of the refuse fall down in the form of molten slag through an opening
in the floor.
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicant.

page_text: Refuse Consuming Furnace with Mechanical Transporter.
I, CARL WEGENER, of 14/15, Gitschinerstrasse, Berlin, 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:
This invention consists of a furnace for burning refuse in which the refuse
falls from the hopper upon the upper end of a sloping plane which is prolonged
to the middle of the furnace, wherein the said refuse is gradually transported
downwards.by aid of a mechanical stirring device, and in which the speed of the
stirring device can be changed according to the requirements, of the furnace.
The furnace is heated by a coal dust firing apparatus by means of which coal
"dust mixed witli air is delivered into the furnace, the air supplied to the firing
apparatus being preferably heated-before- admission to the said apparatus by the
aid of the combustion gases. The furnace is provided with a hopper-into which
the material to be burned is charged and--this, hopper is connected by a branch
pipe with the pipe conducting the previously heated air to the firing apparatus
so that a portion of the air heated by the combustion gases is delivered into the
hopper. This for the purpose of drying the material previous to its being burned.
The lower end of the hopper opens towards the furnace, of which the floor in its
first part is an inclined plane developing into a nearly horizontal plane. For
the purpose of transporting downwards the refuse falling from the hopper on to the
inclined plane towards the horizontal part of the floor-a series. of bars is provided
arranged side by side with claws directed downwards which bars are operated by
eccentrics from a common driving shaft placed outside the furnace. This shaft
is preferably operated by means of a variable gear which can alter, the speed
of the stirring bars and thus impart to the refuse a quicker or slower movement
downwards. according to the operation of the furnace. To protect the said bars
from being burned the sloping plane is covered by pipes placed close to one
another through which water is passed.
In consequence of the sloping plane on which the refuse is conveyed to the
more horizontal part of the furnace floor, the furnace receives a lengthy form
which renders the construction of the roof and any repairs thereof which may
become necessary rather difficult. To provide for these difficulties the roof is
constructed of metal pipes slightly arched through which water is passed. These
pipes serve as girders between which suitably shaped and easily interchangeable
blocks of fire clay are supported.
The products of combustion leave the furnace through an outlet provided at
the end of the more or less horizontal part of the floor whilst the incombustible
portions of the refuse fall down in the form of molten slag through an opening
in the floor.
The invention is illustrated on the drawings in two perpendicular sections taken
at right angles to one another.
b
Through the tube a air for combustion, which is preferably heated previously
by aid of the gases escaping from the furnace, is conveyed partially to the coal
dust firing apparatus 6 through the tube a° and partially through the other branch
connection a¹ of the chamber c° of the hopper c. From the coal dust apparatus b
the air passes laden with coal dust through the opening 6° into the burning spaced,
and likewise the chamber c opening into the upper part of the furnace. The
lower end of the hopper opens towards. the sloping plane e of the furnace, which
develops in the midst of the furnace into the more horizontal floor f.
For the purpose of transporting the refuse downward on the inclined floor I

page_text: provide a series of bars 9 arranged side by side with claws g° directed downwards,
which bars are operated by means of eccentrics from a common driving shaft h
placed outside the furnace. The operation of this shaft is preferably by means
of a variable gear, which can alter the speed of operation of the stirring bars g
according to the requirements of the furnace, and thus enable the refuse to be
given a quicker or a slower motion downwards.
In order to protect the said bars from burning the sloping plane is covered
with pipes i placed close to one another, and having water passing through them.
In consequence of the sloping plane on which the refuse is conveyed the furnace
receives a lengthy form, which renders the construction of the furnace roof and
repairs thereof rather difficult. To provide for these difficulties the roof is con-
structed of metal pipes k, slightly arched, through which water is passed. These
pipes serve as girders between which suitably shaped and easily interchangeable
fire-clay blocks are supported.
The products of combustion leave the furnace through an outlet m, whilst the
incombustible portions of the refuse fall down in the form of molten slag through
the opening n, and are collected in suitable vessels.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. In a furnace for burning refuse having an inclined floor on which the refuse
is transported downwards by means of a mechanical stirring device, which inclined
floor develops into a horizontal or nearly horizontal plane, the slightly arched
roof of the furnace being constructed of a series of metal pipes through which
water is passed and which serve as support for interchangeable blocks of fire-clay,
essentially as and for the purpose described.
2. In a furnace as described in the first claiming clause, the arrangement of
metal pipes with water circulating through them on the sloping plane of the
furnace, essentially as and for the purpose described.
Dated the 17th day of May 1899
W. P. THOMPSON & Co.,
Of London, Liverpool, Manchester, and Birmingham.