Improvements in Apparatus for Destructing, Drying and Calcining Substances or Materials
Year: 1889

page_text: Date of Application, 1st Aug., 1889
Complete Specification Left, 1st May, 1890-Accepted, 19th July, 1890
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TRUVIAN
'Improvements in Apparatus for Destructing, Drying and Calcining
Substances or Materials"
We, WILLIAM TIPPING, of Aldred House, Cresent, Salford, Gentleman and RICHARD
CUNLIFFE of 168 Ellor Street Pendleton, Engineer both in the County of Lancashire,
do hereby declare the nature of this invention to be as follows:-
Our invention relates to improvements in apparatus for destructing, drying and
calcining substances or inaterials in which, a rotating retort or cylinder is employed
and bas for its object to make such machines more efficient than heretofore has been
the case and continuous and automatic in action.
To this end we employ, to rotate horizontally on pulleys, inside a suitable furnace, a
cylindrical retort, formed of corrugated metal or provided inside with propeller
blades.
One end of this cylindrical retort is arranged in communication with an inlet and
hopper, which we provide with an intermittently rotated feed roller, forined with
pockets and actuated by any well known means, which will allow of varying the
speed thereof.
In cases where it is necessary to employ a destructor we conduct the hot gases there-.
from through the said inlet into the cylindrical retort for the purpose of assisting the
heating of the material or substances under treatinent therein.
The furnace in which the cylindrical retort rotates, we arrange with suitable flues,
which will cause a circulation of the heat around and the return of the gases to the
inlet end of the same.
The said cylindrical retort is continuously rotated by means of a worm, in gear
with a worm wheel fixed to the ontlet end thereof and the latter formed with a circle
of openings in communication with a continuously rotated inclined pipe, made of
corrugated metal or furnished inside with propeller blades.
The outlet end of the said pipe is arranged in communication with a rotary riddle
and provided with a worm wheel, in gear with a worm, by means of which the said
pipe is rotated.
The substance or material under treatment on arriving at the outlet openings of the
cylindrical retort, drops through the same into the aforesaid rotating pipe, the inlet
end of which is also in communication with the furnace, which causes the
gases which
may be left in the out going material or substance, to be aspirated and consumed by
the heat in the furnace.
In communication with the outlet end of the cylindrical retort, one or more fans
and spray arrangements are employed for the purpose of drawing the hot gases out of
the cylindrical retort and condensing and collecting the same previous to being passed
through and burned by a gas burner, suitably connected thereto and consisting of a
casing furnished with a removable grid charged with charcoal and heated by a
gas jet,
dhi 20th day of Inl 1000
F. BOSSHARDT & Co.
Agents to Applicant.
COMPLETE
SPECIFICATION.
Improvements in Apparatus for Destructing, Drying, and Calcining
Substances or Materials"
We, WILLIAM TIPPING, of Aldred House, Cresent, Salford, Gentleman and RICHARD
CUNLIFFE of 168 Ellor Street, Pendleton, Engineer, both in the County of Lancaster,
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:-
Our invention relates to improvements in apparatus for destructing, drying, and

page_text: calcining substances or inaterials, in which a rotating retort or cylinder is
employed and has for its object to make such apparatus more efficient than here-
tofore has been the case, and continuous and automatic in action.
And in order that our invention may be more fully understood we have caused to be
appended hereunto two sheets of drawings marked with letters of reference indicating
like parts in the various figures.
Fig. 1, sheet I, is a longitudinal section.
Fig. 2, sheet II, a cross section through A-13, and
Fig. 3 a cross section through C-D of Fig. 1.
In carrying out our invention and referring to the figures generally we employ, to
rotate horizontally on pulleys inside a suitable furnace b, a cylindrical retort c,
formed of corrugated metal or provided inside with propeller blades d, or scrapers,
(not shown).
One end of this cylindrical retort c is arranged in communication with an inlet e
and hopper f, which we provide with an intermittently rotated feed roller g, formed
with pockets g¹ and actuated by any well known means which will allow of varying
the speed thereof, such as cones, (not shown).
In cases where an ordinary destructor is employed, we conduct the hot gases
therefrom by means of a pipe el, see dotted lines, through the said inlet e into the
cylindrical retort c, for the purpose of assisting the heating and deodorizing of the
substance or material under treatment therein.
The furnace bin which the cylindrical retort c rotates, we arrange with suitable
flues b, be, the flue 62, formed preferably, by surrounding the retort c with a sheet
iron body d, suitably covered and resting on a plate d², causing a circulation of the
heat around and the return of the gases to the inlet end e of the same through the
opening b³, as indicated by the arrow.
The said cylindrical retort c is furnished at each end with a wheel a resting on the
pulleys and is continuously rotated by means of a worin h, in gear with a worm
wheel h, fixed on the pipe c¹ to the outlet end i thereof, or by other suitable gearing.
The outlet end i, is formed with a circle of openings 1, in connection with a shoot
which is in communication with a continuously rotated inclined pipe supported on
pulleys a and made of corrugated metal or furnished inside with propeller blades,
similar as the cylindrical retort c, herein before named.
The outlet end of the said pipe 3 is arranged in communication with a rotary or
other riddle and provided with a worm wheel, in gear with a worm , by means
of which, or other suitable gearing the said pipe ³ is rotated.
The substance or material under treatment on arriving at the outlet openings of
the cylindrical retort c, drops through the same and the shoot 2 into the aforesaid
rotating pipe 3, the inlet end of which is also in communication with the furnace or
flue, which causes the gases which may be left in the outgoing material or sub-
stance, to be aspirated and consumed by the heat in the furnace 6. If desirable the
said inclined rotary pipe ³ may be dispensed with and the material or substance
under treatment conducted out of the cylindrical retort c, at the side or straight.
below the outlet openings i, as shown in dotted lines, by means of the pipe ³, which
discharges the same also into a rotary or other riddle k.
In communication with the outlet end of the cylindrical retort c, one or more
fans,, and spray arrangements are employed in a chamber m, for the purpose of
drawing the hot gases arising from the material or substance under treatment, out of
the cylindrical retort c and condensing and deodorizing the same previous to being
passed through and burned by a gas or other burner n. The fan employed in front
of the outlet pipe ct of the retort c, serves.to draw the hot gases therefrom into the
chamber m. In connection with the fan which is employed in the chamber m in
front of the fan a spray pipe is arranged, suitably supplied by water or steam,
which is projected against the fan and thereby reduced to fine particles, so as to
condense and deodorize the hot gases aforesaid while the condensation water is making
its exit from the chamber through the pipe m² connected thereto. The said
bnrner n is suitably connected to the chamber m and consists of a casing n¹,

page_text: furnished with a removable grid n², charged with charcoal and heated by a gas or
other jet.
If deemed necessary the hot gases may be conducted from the chamber m back to
and be consumed in the furnace b, by means of the pipe o, as shown in dotted
lines.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim,
is
In apparatus for destructing, drying and calcining substances or materials :-
1st The combination of the cylindrical retort c, with an inlet e and hopper
furnished with an intermittently rotated feed roller g, formed with pockets g',
substantially as and for the purpose specified.
2nd The cylindrical retort chaving an inlet e in combination with a furnace b,
formed with a flue be around the same and opening 63, which permits the return of
the hot gases to the inlet e thereof, substantially as and for the purpose specified.
3rd The cylindrical retort c formed at its outlet end i with a circle of openings ¹
adapted to convey the material or substance under treatment out of the cylindrical
retort c, substantially as and for the purpose specified.
4th The outlet openings formed in the cylindrical retort c, in combination with
an inclined rotary pipe 3 which passes through the furnace b and receives the material
or substance from the cylindrical retort c, for the purpose of subjecting the said
material or substance to a further heat and effecting the return to and consumption of
the gases or vapours left therein by the furnace b, substantially as set forth.
5th The combination with the outlet end or pipe c' of the cylindrical retort c of one
or more fans 1, 1, and spray pipe in connection with the fan , all employed inside
a chamber m, substantially as and for the purpose specified.
6th The combination with the chamber m, formed with a pipe m¹ for the collection
of the condensed gases, with a gas or other burner n, substantially as and for the
purpose specified.
Dated this 30th dar of Ancil 1800