Improvements in Apparatus for Feeding Boiler and other Furnaces and Removing Ash and Clinkers.
Year: 1899

page_text: Complainan
Date of Application, 27th Feb., 1899
M
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Feeding Boiler and other Furnaces
and Removing Ash and Clinkers.
I, CHARLES DENTON ABEL, of Birkbeck Bank Chambers, Southampton Build-
ings, in the County of London, Consulting Engineer and Chartered Patent
Agent, do hereby declare the nature of this invention (as communicated to me
from abroad by La Compagnie Anonyme Continentale pour la Fabrication des
Compteurs a Gaz et Autres Appareils, of 9, Rue Pétrelle, Paris, France) to be
as follows:
This invention relates to means of supplying fuel to boiler and other furnaces
and removing the ash and clinkers resulting from the combustion.
For this purpose the fuel is raised by an elevator and delivered on a con-
tinuously travelling apron which conveys it over a hopper having a shoot.
descending behind the boiler to the firegrate below. The grate has a move.
ment of any known kind by which the fuel as it burns is gradually moved for
wards towards the fire bridge. The grate stops short of the bridge, so that
the ash and clinkers as they pass the end of the grate drop down an incline
and are delivered on to the lower part of the same travelling apron as that
which on its upper part conveys the fuel. By this, which is guided up an
incline, the ash and clinkers are raised to a point where they are delivered into
trucks.
The travelling apron may serve for a range of boiler or other furnaces, its
upper part conveying fuel to the range of hoppers and its lower part removing
the ash and clinkers from the successive fires.
Datad hin 0741 Ja...
T
1000
ABEL & IMRAY,
Agents for the Applicant.
Improvements in Apparatus for Feeding Boiler and other Furnaces
and Removing Ash and Clinkers. .
I, CHARLES DENTON ABEL, of Birkbeck Bank Chambers, Southampton Build-
ings, in the County of London, Consulting Engineer and Chartered. Patent.
Agent, do hereby declare the nature of this invention (as communicated to me
from abroad by La Compagnie Anonyme Continentale pour la Fabrication des
Compteurs a Gaz et Autres Appareils, of 9, Rue Pétrelle, Paris, France) and
in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:-

page_text: This invention relates to means of supplying fuel to boiler and other furnaces
and removing the ash and clinkers resulting from the combustion.
For this purpose there is employed apparatus which, as regards the main
feature, is similar to apparatus described in the Specification No. 12586 of 1898,
as applied to the feeding of gas. retorts, the fuel being raised by an elevator
and delivered on to a continuous travelling apron or conveyor above the fur-
nace, which apron or conveyor on the one hand convey's it to the boiler fur-
naces, while on the other hand after descending to below the furnaces, the said
travelling apron or conveyor also serves for receiving and conveying away the
ashes and clinkers from the ash pits.
For these purposes the said travelling apron or conveyor travels along a
trough shaped channel arranged in front of the boiler or boilers, above the
same, in the bottom of which channel are openings from which shoots lead
down to hoppers situated immediately above outward extensions of the fire
grates, so that the fuel carried along by the apron or conveyor is made to
descend through the openings of the channel down the shoots into the hoppers
and thence on to the fire grates. The fire grates are of any known construc-
tion in which they are caused automatically to feed the fuel gradually onwards
from the hoppers to the farther ends of the furnace, in such manner that by
the time the fuel arrives near the fire bridge it is consumed to the condition of
ashes and elinkers which are discharged by the fire grate into inclined shoots
which lead them down into a subterranean channel.
Along this channel the endless apron or conveyor travels in the contrary
direction to its travel in the upper channel, so that the ashes delivered
on to the apron or conveyor are thus conveyed-away_by_it_and discharged at
any desired point, after which the apron or conveyor ascends to the upper level
again, to receive a fresh supply of fuel.
On the accompanying drawings is shown by way of example the application
of the said invention to the feeding of the furnaces of a set of boilers. Fig. 1 is a
cross section and Fig. 2 a front elevation partly in section on line A B and
partly on line A C D E F B of Fig. 1.
The endless travelling conveyor A, may be of any suitable known construc-
tion for conveying the fuel, such as that shewn to an enlarged scale in part
longitudinal section and plan at Figs. 3 and 4, where two sets of chain links R,
connected together by transverse bars $ carry transverse blades T at any
required distance apart, which blades rest on the bottom of the trough shaped
channel C. This conveyor is passed round pullies B from which it receives a
continuous travelling motion, and travels along the upper trough shaped
channel C, having at D D openings provided with slides D for regulating the
discharge, through which openings the fuel as it is carried along by the
blades T of the conveyor A from the chain bucket elevator Q or other feeding
device. falls into hoppers E, whence it descends through shoots F into other
hoppers situated over the front extensions of the furnace grates G onto which
the fuel falls. These grates may, as before stated, be of any known construc-
tion for automatically feeding the fuel onwards; at the farther end they are
provided with cutters or scrapers a arranged in any suitable known manner
for detaching the slag from the grates, which slag falls into the shoots H which
conver it down into the channel K arranged in the subterranean tunnel L.
The ashes fall through the grates directly into the shoots H.
At the end of the upper channel C the conveyor A descends over guide
pullies B on a framing P and passes into the channel K so as to receive the
clinkers and ashes from the furnaces, and to convey them up an inclined chan-
nel M up to a point N where an opening is formed provided with a slide for
discharging the ashes either on to the ground or into trucks o.
The conveyor A passes on and after passing round the guide pulley B receives
a fresh charge of fuel which it again conveys to the shoots F,

page_text: Having thus particularly described and ascertained the nature of this
invention and in what manner the same is to be performed, I declare that what
I claim is:-
In apparatus, for feeding boiler and other furnaces with fuel and removing
ashes and clinkers therefrom, the combination of an endless travelling apron
or conveyor passing firstly along a channel Carranged above the tops of the
boiler or other furnaces, and then along a subterranean channel below the
furnaces, shoots extending from the said upper channel down to front exten-
sions of furnace grates, so as to convey the fuel from the upper channel on to
the furnace grates which are adapted to automatically feed the fuel forward in
the furnace and shoots at the inner ends of the furnace grates for conveying
the ashes and clinkers on to the travelling apron or conveyor in the lower
channel which apron conveys the said ashes and clinkers up an inclined channel
whence they are discharged either into trucks or on to the floor, substantially
as described.
Datal thi. On
1000
ABEL & IMRAY,
Agents for the Applicant.