Title of Invention

BURNER FOR THE COMBUSTION OF PARTICULATE FUEL

Abstract 1. An improved high speed wire feeding machine for introducing cores or coreless wire(s) of large dimensions of upto 40 mm in diameter, comprising - (a) a mandrel or drum(2) over which the wire(l) is wound; (b) a platform or a station(3) on which the mandrel with its content is placed for unhindered withdrawal or release of the wire; (c) a funnel-shaped controller of guide means(4) for directing the wire along the right path; (d) a set of pinch or guide rollers(5) through which passes the wire; (e) a plurality of drive rolls (6) for moving the high dimensional wire in the proper direction; (f) drive means(7) for driving the drive rolls(6) via transmission means like a belt-pulley arrangement; (g) a housing or wire-feeding(8) for locating the said funnel(4), guide rollers(5), drive means(7) and transmission means securely fixed over a platform(9) and a tube for feeding the wire (10) along a guided path under an inert atmosphere, and (h) a manipulator(11) for controlling the movement of the guide tube(10) for imparting directional stability to the high dimensional wire(l).
Full Text The present invention relates to an improved high speed
dimensional wire feeding machine. More particularly this invention
pertains to a high speed dimensional wire feeder capable of
handling/injecting high dimensional wires, both cored and solid
wires, into molten metals or alloys.
Wire feeders for injecting solid or cored wires for
introducing into molten steel are known in industry, but such
feeding devices are usually capable of handling wires of 13 mm
diameter, going upto 19 mm at the maximum. Wires of higher cross-
sections cannot be handled by the existing equipments and the
rate of introduction into molten metal is also considerably less,
e.g. of around 250 meters per minute.
The present invention aims at overcoming the drawbacks
mentioned above and provides an improved machine capable of
handling cored wire of substantially higher dimension and at
nearly double the rate of introduction compared to the conventional
equipments. Higher feed spped with the consequent higher feeding
rate is the primary aim of the invention.
The principal object of the present invention is to
provide a wire feeding machine capable of injecting cored or
solid wire of substantially high dimension at a higher spped.
A further object of this invention is to provide a wire
feeder capable of enhancing the speed of injection of high
dimension wire to a considerable degree.
A still further object of this invention is to provide
improved high dimensional wire feeders having controller(s)
and suitable mechanical systems and devices for controlling
the speed, rate and quantum of feeding of wire inside
a ladle containing molten metal or alloys.
Another object of this invention is to provide an
improved high dimensional wire feeding machine which effectively
avoids bending or pushing the wire through bench or notches of
the stiffness and rigidity of the high dimensional wire.
Yet another object of this invention is to provide a
cost-effective wire feeding machine fabricated from easily
available raw materials and machinery available indigenously.
The foregoing objects are achieved by the present
invention which relates to an improved high speed high dimensional
wire feeding machine for introducing cores or solid wire(s) of
large dimensions of upto 40 mm in diameter, comprising -
(a) a mandrel or drum over which the wire is wound;
(b) a platform or a station on which the mandrel with its
content is placed for unhindered withdrawal or release
of the wire;
(c) a funnel-shaped controller of guide means for directing
the wire along the right path;
(d) a set of pinch or guide rollers through which passes
the wire;
(e) a number of drive rolls for moving the high dimensional
wire in the proper direction;
(f) drive means for driving the drive rolls via transmission
means like a belt-pulley arrangement;
(g) a housing termed wire-feeder for locating the said
funnel, guide rollers, drive means and transmission
means, securely fixed over a platform and a tube for
feeding the wire along a guided path under an inert
atmosphere, and
(h) a manipulator for controlling the movement of the guide
tube for imparting directional stability to the high
dimensional wire.
The said guide tube has provision for introducing argon
gas to maintain an inert atmosphere whereby finely divided aluminum
present in the cored wire mixed with traces of graphite is not
called into any chemical reaction until it reaches the mass of
molten metal or alloy in the ladle. The guide tube also has a
packing for argon injection for close control of the inert
atmosphere inside the said tube. The open end of the guide tube
is equipped with a ceramic tube/paper insulating tube with special
coatings serving as a shield and protection against corrosion and
damage while being dipped in the molten metal or alloy inside the
ladle having a free board and suitable insulation all along its
sides.
The drive means for moving the drive and pinch rolls
may be selected from AC variable speed drive, a DC drive or a
hydraulic drive, which in turn may be equipped with a PLC or a
control system to control the wire-feeding operation.
The stiffness and rigidity of the high-dimensional
wire is substantially higher in comprison with the convensional
13-16 mm size wire. Thus, pushing or passing the wire through
bends or notches is extremely difficult, and hence the mandrel
containing the wire is optimally placed vertically above the wire
feeding machine. In some cases, however, the deployment of the
wire feeder can also be horizontal.
As already mentioned, the wire feeder is conveniently
of vertical construction with the drive rolls size varying between
from 50 mm to 100 mm, preferably the roll size varying between
150 mm and 500 mm.
The high dimensional cored wire used in this invention
has a diameter ranging between 16 mm and 30 mm. The wire is wound
around a mandrel, strapped, palletised and wrapped with a firm of
plastic and metallised insulating material before being despatched
to the customer. In point of fact, the wire is unwound from
inside, i.e. flipping type. The ID (internal diameter) of the
wound wire may vary from 610 mm to 2 metre, depending on customer
requirement. The weight of each coil may vary between 1 MT and
around 10 MT.
Optimally the high dimensional cored wire is positioned
over the drive rolls and a parallel set of pinch rolls of desired
dimensions, usually varrying between 150 and 500 mm, is made to
press against the drive rolls. High dimensional cored wire lodged,
between the pinch rolls and drive rolls will be subjected to
considerable force and will be released from the coil without any
hindrance.
The invention will be further defined and illustrated
by means of the accompanying drawing in which (1) is the high
dimensional wire, (2) is the mandrel or drum over which the wire
is wound, (3) is the platform or station, (4) is the funnel
shaped controller or guide means for directing the wire, (5)
shows a set of pinch or guide rollers, (6) represents a plurality
of drive rolls driven by drive means, (7) usually a motor, which
is equipped with transmission means like belt-pulley arrangement
for moving the rolls. There is a housing (8) for holding and/or
locating part nos.(4) to (8), termed "wire-fedder", which in turn
is securely fixed on a base or platform (9) .
The high speed of wire feeding is achieved by various
mechanical controlling the wire guidance by sets of guide rolls
and straightening and other anti-cobbling devices.
The high dimensional wire going out of wire feeder (8)
is directed through a guide tube (10) for imparting directional
stability. The guide tube has an argon connection (12) and a
manipulator for movement of guide tube (11). The tube also has a
packing for argon (13), and an exterior sheathing of a ceramic
tube (14) to protect the high dimensional cored wire from the
corrosive and reactive bath of molten metal or alloy (15), the
upper level of which is shown in the drawing. In point of fact,
the molten metal or alloy is contained in a ladle (16) having a
free board (17) and an inside insulation lining (18) .
The main advantages of the present invention are as
follows :-
i) high speed introduction of cored wire (around 600 metres/
minute) results in reduction in feeding time by around
8 times over the usual practice, and
ii) considerable cost saving especially for steel plants with a
large heat size, e.g. plants with heat size of 300 MT per
heat and above.
Additional modifications and improvements of the present
invention may also be apparent to those skilled in the art. Thus,
the particular combination of parts described and illustrated
herein is intended to represent only one embodiment of the
present invention, and is not intended to serve as limitations of
alternative devices within the spirit and scope of the invention.
Having described with invention by way of illustration,
it will now more particularly be defined by means of claims
appended hereafter.
I claim :
1. An improved high speed wire feeding machine for introducing
cores or coreless wire(s) of large dimensions of upto 40 mm in
diameter, comprising -
(a) a mandrel or drum(2) over which the wire(l) is wound;
(b) a platform or a station(3) on which the mandrel with
its content is placed for unhindered withdrawal or
release of the wire;
(c) a funnel-shaped controller of guide means(4) for
directing the wire along the right path;
(d) a set of pinch or guide rollers(5) through which passes
the wire;
(e) a plurality of drive rolls (6) for moving the high
dimensional wire in the proper direction;
(f) drive means(7) for driving the drive rolls(6) via
transmission means like a belt-pulley arrangement;
(g) a housing or wire-feeding(8) for locating the said
funnel(4), guide rollers(5), drive means(7) and
transmission means securely fixed over a platform(9)
and a tube for feeding the wire (10) along a guided
path under an inert atmosphere, and
(h) a manipulator(11) for controlling the movement of the
guide tube(10) for imparting directional stability to
the high dimensional wire(l).
2. An improved wire feeding machine, wherein the high dimensional
cores wire is made to pass through a guide tube(10) which in turn
os provided with a connection or inlet for argon gas(12)and a
packing therefor(13), the said guide tube is equipped with a
ceramic tube(14) for being introduced into the molten mass of
metal or alloy, the upper level of which is indicated by(15),
inside the ladle(16) having a free board(17) and suitable
insulation(18) all along its sides.
3. An improved wire feeding machine as claimed in Claims 1 and
2, wherein the drive neams for moving the drive and pinch rolls
may be selected from AC variable speed drive, a DC drive or a
hydraulic drive which in turn may be equipped with a PLC or a
control system to control the wire feeding operation.
4. Am improved wire feeding machine as claimed in Claims 1 to
3, wherein the size of the drive rolls varies between 20 mm and
1000 mm, preferably between 150 and 500 mm.
5. An improved wire feeding machine as claimed in Claims 1 to
3, wherein the diameter of the high dimensional cores wire ranges
between 16 and 40 mm, which is wound over a mandrel after being
strapped, wrapped by plastic or metallised film and palletised
prior to despatch to customers and ID (internal diameter) of the
wound wire may vary between 610 mm and 2 metres, each coil
weighing between 1 MT and 10 MT.
6. An improved high speed wire feeding machine, subatantially
as hereinbefore described with particular reference to the
accompanying drawings.

1. An improved high speed wire feeding machine for introducing cores or coreless wire(s) of large dimensions of upto 40 mm in diameter, comprising -
(a) a mandrel or drum(2) over which the wire(l) is wound;
(b) a platform or a station(3) on which the mandrel with its content is placed for unhindered withdrawal or release of the wire;
(c) a funnel-shaped controller of guide means(4) for directing the wire along the right path;
(d) a set of pinch or guide rollers(5) through which passes the wire;
(e) a plurality of drive rolls (6) for moving the high dimensional wire in the proper direction;
(f) drive means(7) for driving the drive rolls(6) via transmission means like a belt-pulley arrangement;
(g) a housing or wire-feeding(8) for locating the said funnel(4), guide rollers(5), drive means(7) and transmission means securely fixed over a platform(9) and a tube for feeding the wire (10) along a guided path under an inert atmosphere, and

(h) a manipulator(11) for controlling the movement of the guide tube(10) for imparting directional stability to the high dimensional wire(l).

Documents:

978-KOLNP-2003-(06-03-2012)-ASSIGNMENT.pdf

978-KOLNP-2003-(06-03-2012)-CERTIFIED COPIES(OTHER COUNTRIES).pdf

978-KOLNP-2003-(06-03-2012)-CORRESPONDENCE.pdf

978-KOLNP-2003-(06-03-2012)-FORM-13.pdf

978-KOLNP-2003-(06-03-2012)-FORM-16.pdf

978-KOLNP-2003-(06-03-2012)-PA-CERTIFIED COPIES.pdf

978-KOLNP-2003-(11-01-2012)-CORRESPONDENCE.pdf

978-kolnp-2003-abstract.pdf

978-KOLNP-2003-CANCELLED PAGES.pdf

978-KOLNP-2003-CLAIMS 1.1.pdf

978-kolnp-2003-claims.pdf

978-KOLNP-2003-CORRESPONDENCE 1.1.pdf

978-KOLNP-2003-CORRESPONDENCE 1.2.pdf

978-kolnp-2003-correspondence-1.3.pdf

978-kolnp-2003-correspondence.pdf

978-KOLNP-2003-DESCRIPTION (COMPLETE) 1.1.pdf

978-kolnp-2003-description (complete).pdf

978-kolnp-2003-drawing.pdf

978-KOLNP-2003-DRAWINGS 1.1.pdf

978-KOLNP-2003-DRAWINGS 1.2.pdf

978-kolnp-2003-drawings.pdf

978-kolnp-2003-examination report.pdf

978-KOLNP-2003-FORM 1.1.1.pdf

978-kolnp-2003-form 1.pdf

978-kolnp-2003-form 18.pdf

978-KOLNP-2003-FORM 2.1.1.pdf

978-kolnp-2003-form 2.pdf

978-kolnp-2003-form 26.pdf

978-kolnp-2003-form 3-1.1.pdf

978-KOLNP-2003-FORM 3.1.1.pdf

978-kolnp-2003-form 3.pdf

978-kolnp-2003-form 5-1.1.pdf

978-kolnp-2003-form 5.pdf

978-KOLNP-2003-FORM-27.pdf

978-kolnp-2003-granted-claims.pdf

978-kolnp-2003-granted-description (complete).pdf

978-kolnp-2003-granted-drawings.pdf

978-kolnp-2003-granted-form 1.pdf

978-kolnp-2003-granted-form 2.pdf

978-kolnp-2003-granted-letter patent.pdf

978-kolnp-2003-granted-specification.pdf

978-KOLNP-2003-OTHERS 1.1.pdf

978-KOLNP-2003-PETITION UNDER RULE 137.pdf

978-KOLNP-2003-PRIORITY DOCUMENT.pdf

978-kolnp-2003-reply to examination report-1.1.pdf

978-KOLNP-2003-REPLY TO EXAMINATION REPORT.pdf

978-kolnp-2003-specification.pdf

978-KOLNP-2003-TRANSLATED COPY OF PRIORITY DOCUMENT.pdf


Patent Number 246304
Indian Patent Application Number 978/KOLNP/2003
PG Journal Number 08/2011
Publication Date 25-Feb-2011
Grant Date 23-Feb-2011
Date of Filing 30-Jul-2003
Name of Patentee ALSTOM POWER BOILER GMBH
Applicant Address AUGSBURGER STR. 712, 70329 STUTTGART
Inventors:
# Inventor's Name Inventor's Address
1 WEISENBURGER, MICHAEL ECKARTSTR. 10, 70191 STUTTGART
2 KESSEL, WERNER HASELBRUNNEWEG 8, 73614 SCHORNDORF
3 KENDEL, FRIEDEMANN ROBERT-LEICHT-STRASSE 49A, 70563 STUTTGART
4 MREBS, HARTMUT PESTALOZZISTR. 12, 13187 BERLIN
PCT International Classification Number F23D 1/02
PCT International Application Number PCT/DE2002/00116
PCT International Filing date 2002-01-17
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10102263.8 2001-01-18 Germany
2 10127827.6 2001-06-08 Germany