BACKGROUND OF THE INVENTION
(a) Field of the Invention
The present invention relates to an apparatus for separating fine iron ore
transported by a gas and charging the separated fine iron ore to a reactor.
More particularly, the present invention relates to an apparatus for charging fine
15 iron ore, which can provide an effective gas-fine iron ore separation system that
can separate fine iron ore transported together with a gas from a transport pipe
and transport the separated fine iron ore to a reactor.
(b) Description of the Related Art
In general, a technique for extracting power and transporting the
20 extracted power to a reactor has been carried out through various methods.
The power may be extracted from a power sample container using a type of a
screw type and the like and then directly transported to a reactor, or a given
amount of power is extracted from the power sample container and then
transported to the reactor using a carrier gas.
2
First, when the power is directly extracted and then transported to the
reactor using a screw, a means for transporting the power to a location more
higher than the reactor is required and the height of the entire reactor is
increased to press the power and then inject the pressed power. Further, in
such a case, the amount of ore drop is increased during the power transportat5 ion,
and when a large amount of fine iron ore is included, a regular amount of power
cannot be extracted due to pilling in the screw.
Further, when a given amount of power is extracted from the power
sample container and then transported to the reactor using a carrier gas, the
10 height of the entire reactor is decreased and occurrence probability of ore drop
can be reduced. However, when the gas and fine iron ore transported through
the transport pipe are directly charged into the reactor, the carrier gas is mixed
with a reaction gas in the reactor, thereby causing much more scattering of the
fine iron ore in a flow reactor.
15 Thus, in order to solve such a problem, according to the present
invention, an apparatus that can separate a carrier gas and fine iron ore in a
transport pipe and then supply the separated fine iron ore to a reactor.
The above information disclosed in this Background section is only for
enhancement of understanding of the background of the invention and therefore
20 it may contain information that does not form the prior art that is already known
in this country to a person of ordinary skill in the art.
SUMMARY OF THE INVENTION
The present invention has been made in an effort to provide an
apparatus for charging fine iron ore that can effectively separate a carrier gas
3
and fine iron ore transported by the carrier on a transport pipe and then supply
the separated fine iron ore to a reactor.
According to an exemplary embodiment of the present invention, an
apparatus for charging fine iron ore is provided. The apparatus includes: a
transport pipe transporting fine iron ore to an upper portion thereof by inducing 5 ing a
gas-fine iron ore flow using a gas; a reactor triggering a chemical reaction
between the fine iron ore transported from the transport pipe and a reaction gas;
and a gas separator separating the fine iron ore and a carrier gas transported
from the transport pipe, injecting the separated fine iron ore to the reactor, and
10 discharging the separated carrier gas to the outside rather than injecting the
carrier gas into the reactor.
The apparatus for charging fine iron ore according to the exemplary
embodiment of the present invention may include an expanding pipe provided in
an upper portion of the transport pipe and having a wider space than the
15 transport pipe, and letting the fine iron ore transported from the transport pipe to
lose a driving force and be sunk to the bottom by separating the fine iron ore
from the gas.
The gas separator may be formed of a cyclone or a filter.
The expanding pipe may be provided in an upper portion of the transport
20 pipe, may have a wider diameter than the transport pipe, may reduce a driving
force of fine iron ore transported from the transport pipe, and may include a
baffle that lets the fine iron ore to be bumped and then spread. . An upper
end of the transport pipe may be formed as a taper pipe of which the width is
gradually widened toward an upper end thereof for reduction of a driving force of
4
the fine iron ore transported through the transport pipe and sufficiently spread of
the fine iron ore.
The expanding pipe may have a diameter of 5 times to 10 times the
diameter of the transport pipe.
A slope portion may be formed in a lower end of the expanding 5 panding pipe to
induce smooth downflow of the fine iron ore sinking by the expanding pipe to the
reactor.
A fine iron ore injection pipe may be formed in a lower end of the
expanding pipe to introduce the sunk fine iron ore to be injected into the reactor
10 from the expanding pipe and control a flow of the fine iron ore to thereby prevent
a reaction gas from the reactor from flowing backward to the expanding pipe.
The baffle may be provided between the topmost portion of the
expanding pipe and the upper end of the transport pipe.
The baffle may be formed in the shape of any one of a circle, a
15 quadrangle, an oval, a polygon, and the like for the fine iron ore to be bumped
and then spread.
The baffle may be formed in the shape of a net and thus the fine iron ore
are sunk to the bottom by being bumped and spread and gas is separated
upwardly.
20 The baffle may be formed of a plurality of unit baffles arranged in parallel
with each other while having a constant distance from each other.
The unit baffle may be formed in the shape of any one of a circle, a
quadrangle, an oval, a polygon, and the like.
The plurality of unit baffles may be arranged in a plurality of columns, and
5
unit baffles arranged in one column and unit baffles arranged in another column
may be arranged in a zigzag manner.
The apparatus for charging fine iron ore may include a gas separator
serves to separate a small amount of fine iron ore remaining in a carrier gas
separated from the expanding pipe having 5 ing the baffle and to discharge a gas
used in the transport to the outside rather than injecting the gas to a reactor.
The gas separator may be formed as a cyclone or a filter.
As in a conventional art, when a gas and fine iron ore transported
through a transport pipe are directly charged into a reactor, a carrier gas is
10 mixed with a reaction gas in the reactor and much more scattering of fine iron
ore occurs in a flow reactor. Further, when the carrier gas is heterogeneous to
a chemical reaction, a negative effective may be shown.
However, according to exemplary embodiments of the present invention,
a gas separator that separates a carrier gas and fine iron ore is provided in an
15 upper side of the transport pipe, and for more efficiency of the gas separator, an
expanding pipe having a baffle of which a diameter is greater than a transport
pipe is provided in an upper side of the transport pipe to separate the fine iron
ore by sinking the same to the bottom and then transport the separated fine iron
ore to the reactor. Further, the carrier gas is effectively separated and the
20 discharged such that scattering of the fine iron ore and the negative effect can
be minimized.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic diagram of an apparatus for charging fine iron ore
according to a first exemplary embodiment of the present invention.
6
FIG. 2 is a schematic diagram of an apparatus for charging fine iron ore
according to a second exemplary embodiment of the present invention.
FIG. 3 is a schematic diagram of an apparatus for charging fine iron ore
according to a third exemplary embodiment of the present invention.
DETAILED DESCRIPTION OF THE 5 HE EMBODIMENTS
The present invention will be described more fully hereinafter with
reference to the accompanying drawings, in which exemplary embodiments of
the invention are shown. As understood by those skilled in the art, the following
exemplary embodiment may be modified in various ways without departing from
10 the concept and scope of the present invention. Like reference numerals
designate like elements throughout the specification.
The terminologies used hereafter are only for describing a specific
exemplary embodiment and are not intended to limit the present invention.
Singular terms used herein include plural terms unless phrases clearly express
15 opposite meanings. The term “including” used herein refers to concrete
specific characteristics, regions, positive numbers, steps, operations, elements,
and/or components, without limiting existence or addition of other specific
characteristics, regions, positive numbers, steps, operations, elements, and/or
components.
20 All the terms, including technical terms and scientific terms used
hereafter, have the same meanings as those that those skilled in the art
generally understand. The terms defined in dictionaries should be construed
as having meanings corresponding to the related prior art documents and those
stated herein, and are not to be construed as being ideal or official, if not
7
defined.
The present invention relates to an apparatus for separating fine iron ore
transferred by gas and charging the separated fine iron ore to a reactor, and may
be formed of a transport pipe 100, a reactor 300, a gas separator 400, and an
expanding pipe 200 having a baffle 210, and they may 5 ay be deformed for the
purpose of the present invention or may be installed together with an additional
device, and the above description is not restrictive.
The transport pipe 100 induces gas-fine iron ore flow 10 by gas to
transport the fine iron ore to the upward direction.
10 An upper end of the transport pipe 100 may be formed as a taper pipe
110 of which the width is gradually widened toward an upper end thereof to
reduce a driving force of fine iron ore transferred through the transport pipe 100
and efficiently disperse the fine iron ore.
The expanding pipe 200 has a wider space than the transport pipe 100
15 and disposed in an upper portion of the transport pipe 100, and serves to deprive
the driving force from the fine iron ore transported from the transport pipe 100
and sink the fine iron ore by separating the same from gas.
The expanding pipe 200 is provided in an upper portion of the transport
pipe 100 and has a larger diameter than the transport pipe 100 in the expanding
20 pipe 200,, and may include the baffle 210 to reduce the driving force of the fine
iron ore transported from the transport pipe 100 and allow the fine iron ore to
spread by being bumped thereto.
The expanding pipe 200 may have a larger diameter than that of the
transport pipe 100, and the diameter of the expanding pipe 200 may be 5 times
8
larger than the diameter of the transport pipe 100 and preferably may be 5 to 10
times the diameter of the transport pipe 100.
A slope portion 220 may be provided in the expanding pipe 200 to induce
smooth downflow of the fine iron ore sunk by the expanding portion 200 to the
5 reactor 300.
The slope portion 220 may have a constant inclination angle with respect
to a length direction (i.e., vertical direction in FIG. 1) of the expanding portion
200 so as to easily induce the fine iron ore to the reactor 300.
A fine iron ore injection pipe 230 may be provided in a lower end of the
10 expanding pipe 200 to introduce injection of the fine iron ore sunk from the
expanding pipe 200 to the reactor 300 and control a flow of the injected fine iron
ore to prevent a reaction gas from the reactor 300 from flowing backward to the
expanding pipe 200.
In the reactor 300, the fine iron ore transported from the transport pipe
15 100 reacts with a reaction gas such that a chemical reaction occurs.
The gas separator 400 separates the carrier gas and the fine iron ore
transported from the transport pipe 100, and separates gas used in the gas
transport and discharge the separated gas rather than injecting the same into
the reactor 300. Further, the gas separator 400 may be formed as a cyclone or
20 a filter.
(First Exemplary Embodiment)
Referring to FIG. 1, an apparatus for charging fine iron ore according to a
first exemplary embodiment of the present invention is formed of a transport pipe
100, a reactor 300, and a gas separator 400, and separates gas-fine iron ore
9
transported from the transport pipe 100 in the gas separator 400, injects the
separated fine iron ore transported from the transport pipe 100 to the reactor 300,
and separates and discharges the gas used in the transport rather than injecting
the gas to the reactor 300. The gas separator 400 may be formed as a cyclone
or a filter. In order to more efficiently separate the gas and the fine iron 5 n ore
transported from the transport pipe 100, the fine iron ore is sunk to the bottom in
an expanding pipe 200 having a baffle 210 between the transport pipe 100 and
the gas separator 400 to separate the fine iron ore from the carrier gas, and the
fine iron ore separated by being sunk is transported to the reactor 300 along a
10 slope portion 220 provided in a lower portion of the expanding pipe 200. The
reactor 300 allows the fine iron ore transported through the slope portion 220 of
the expanding pipe 220 to react with a reaction gas 30 to thereby cause a
chemical reaction therebetween.
As an apparatus that mixes fine iron ore using a high-pressure gas and
15 transports the mixed fine iron ore, the transport pipe 100 induces and transports
a gas-fine iron ore flow 10 to the reactor 300.
An upper end of the transport pipe 100 may be formed as a taper pipe
110 to reduce a driving force of the transported fine iron ore and efficiently
disperse the fine iron ore. In this case, a carrier gas can exist as a mixture gas
20 of air, nitrogen (N2), and a process gas used in an iron making process. The
transported fine iron ore exists with a size of for example 10mm or less, and
when the fine iron ore is transported into the expanding pipe 200 having the
baffle from an upper end of the transport pipe 100, then upper end (end portion)
of the transport pipe 100 is formed as a taper pipe 110 formed in the shape of a
10
taper of which the width is gradually widened toward the inward of the expanding
pipe 200.
The expanding pipe 200 having the baffle 210 serves to let the fine iron
ore transported from the transport pipe 100 to lose a driving force and sink to the
bottom, and is formed of the expanding pipe 200 having a diameter 5 eter that is
greater than that of the transport pipe 100 and the baffle 210. The diameter of
the expanding pipe 200 may be 5 times to 10 times or more the transport pipe
100, and preferably 5 times to 10 times the transport pipe 100 such that the
transported fine iron ore ejected under a lower pressure than the transport pipe
10 100 or the reactor 300 can be spread in the expanding pipe 200.
In this case, the carrier gas and the fine iron ore flowing with almost the
same flow velocity flow in the transport pipe 100 flow with significantly different
flow velocity in the expanding pipe 200 such that the carrier gas and the fine iron
ore are separated from each other. The fine iron ore separated due to such a
15 velocity different are sunk to the bottom due to gravity in the expanding pipe 200
having a greater diameter than the transport pipe 100.
The baffle 210 is provided on the transport pipe 100, preferably in an
upward direction of the transport pipe 100 to reduce a driving force. The baffle
can be disposed in a proper located between the topmost portion of the
20 expanding pipe 200 and the upper end of the transport pipe 100.
The baffle 210 serves to let the transported fine iron ore to bump and the
spread, and may be formed in various shapes such as a circle, a quadrangle, an
oval, a polygon, and the like, and the baffle 210 is formed in the shape of a net
such that the fine iron ore is spread by being bumped to the net-shaped baffle
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210 and then sunk down and gas is upwardly separated. The fine iron ore
separated by the velocity difference and sinking is accumulated in a lower
portion of the expanding pipe 200 having the baffle 210 and then injected to the
reactor 300 along the bottom surface of the slope portion 220 provided in a lower
end of the expanding 5 g pipe 200.
In the lower end of the expanding pipe 200, a fine iron ore injection pipe
230 is provided to allow the sunk fine iron ore to be injected to the reactor 300
from the expanding pipe 200 and at the same time control an injection flow of the
fine ire ore to thereby prevent the reaction gas from the reactor 300 not flowing
10 backward to the expanding pipe 200.
The gas separator 400 also serves to separate fine iron ore that has not
be separated from the expanding pipe 200 having the baffle 210 and discharge a
carrier gas by separating the same rather than injecting the same into the
reactor 300.
15 A gas 50 separated from the expanding pipe 200 and then discharged to
upward may include fine iron ore, and removed by the gas separator 400 formed
of a cyclone or a filter and then recycled as recycled fine iron ore 60 recycled to
the expanding pipe 200 having the baffle 210.
In this case, a carrier gas 70 is separated and discharged from the gas
20 separator 400.
Thus, the transported gas is discharged to the outside rather than
being injected to the reactor 300 and the fine iron ore sunk or recycled in the
expanding pipe 200 is injected to the reactor 300 such that the amount of
scattering of the fine iron ore in the reactor 300 can be significantly reduced
12
compared to a second or third exemplary embodiment. Specially, it is more
effective when the carrier gas is shows a negative effect to a chemical reaction
or heterogeneous to the chemical reaction.
(Second Exemplary Embodiment)
An apparatus for charging fine iron ore according to a second exempl5 ary
embodiment of the present invention is the same as the apparatus for charging
the fine iron ore according to the first exemplary embodiment of the present
invention, and therefore no further description will be provided except for a
difference to be described hereinafter.
10 An apparatus for charging fine iron ore according to the second
exemplary embodiment of the present invention is different from the apparatus
for charging fine iron ore according to the first exemplary embodiment in shape
and alignment of a baffle 210 of an expanding pipe 200, and an additional device
may be provided.
15 In the apparatus for charging the fine iron ore according to the exemplary
embodiment of the present invention, the baffle 210 of the expanding pipe 200
may be formed of a plurality of unit baffles 211 arranged parallel with each other
at a constant distance from each other.
The unit baffle 211 may be formed in the shape of any of a circle, a
20 quadrangle, an oval, a polygon, and the like.
Further, the plurality of unit baffles 211 may be arranged in a plurality of
columns, and in this case, unit baffles 211 arranged in one column and unit
baffles 211 arranged in another column are arranged in a zigzag manner such
that fine iron ore can be more rapidly sunk by gravity by reducing a driving force
13
of the fine iron ore.
(Third Exemplary Embodiment)
An apparatus for charging fine iron ore according to a third exemplary
embodiment of the present invention is the same as the apparatuses for
charging the fine iron ore according to the first and second exemplar5 y
embodiments of the present invention, and therefore no further description will
be provided except for a difference to be described hereinafter.
In an apparatus for charging fine iron ore according to the third
exemplary embodiment of the present invention, a gas separator 400 is not
10 provided in an upper side of an expanding pipe 200 having a baffle 210 to
separate a carrier gas
While this invention has been described in connection with what is
presently considered to be practical exemplary embodiments, it is to be
understood that the invention is not limited to the disclosed embodiments, but,
15 on the contrary, is intended to cover various modifications and equivalent
arrangements included within the spirit and scope of the appended claims.

10: gas-fine iron ore 20: reactor product
30: reaction gas 40: reactor offgas
20 100: transport pipe 110: taper pipe
200: expanding pipe 210: baffle
220: slope portion 230: fine iron ore injection pipe
300: reactor 400: gas separator

WHAT IS CLAIMED IS:
1. An apparatus for charging fine iron ore, comprising:
a transport pipe transporting fine iron ore to an upper portion thereof by
inducing a gas-fine iron ore 5 re flow using a gas;
a reactor triggering a chemical reaction between the fine iron ore
transported from the transport pipe and a reaction gas; and
a gas separator separating the fine iron ore and a carrier gas transported
from the transport pipe, injecting the separated fine iron ore to the reactor, and
10 discharging the separated carrier gas to the outside rather than injecting the
carrier gas into the reactor.
2. The apparatus for charging fine iron ore as claimed in claim 1,
comprising:
15 an expanding pipe provided in an upper portion of the transport pipe and
having a wider space than the transport pipe, and letting the fine iron ore
transported from the transport pipe to lose a driving force and be sunk to the
bottom by separating the fine iron ore from the gas;
20 3. The apparatus for charging fine iron ore as claimed in claim 1,
wherein the gas separator is formed of a cyclone or a filter.
4. The apparatus for charging fine iron ore as claimed in claim 2,
wherein the expanding pipe is provided in an upper portion of the transport pipe,
15
has a wider diameter than the transport pipe, reduces a driving force of fine iron
ore transported from the transport pipe, and comprises a baffle that lets the fine
iron ore to be bumped and then spread.
5. The apparatus for charging fine iron ore as claimed in claim 5 laim 4,
wherein an upper end of the transport pipe is formed as a taper pipe of which the
width is gradually widened toward an upper end thereof for reduction of a driving
force of the fine iron ore transported through the transport pipe and sufficiently
spread of the fine iron ore.
10
6. The apparatus for charging fine iron ore as claimed in claim 2,
wherein the expanding pipe has a diameter of 5 times to 10 times the diameter
of the transport pipe.
15 7. The apparatus for charging fine iron ore as claimed in claim 2,
wherein a slope portion is formed in the expanding pipe to induce smooth
downflow of the fine iron ore sinking by the expanding pipe to the reactor.
8. The apparatus for charging fine iron ore as claimed in claim 7,
20 wherein a fine iron ore injection pipe is formed in a lower end of the expanding
pipe to introduce the sunk fine iron ore to be injected into the reactor from the
expanding pipe and control a flow of the fine iron ore to thereby prevent a
reaction gas from the reactor from flowing backward to the expanding pipe.
16
9. The apparatus for charging fine iron ore as claimed in claim 4,
wherein the baffle is provided between the topmost portion of the expanding pipe
and the upper end of the transport pipe.
10. The apparatus for charging fine iron ore as claimed in claim 5 laim 9,
wherein the baffle is formed in the shape of any one of a circle, a quadrangle, an
oval, a polygon, and the like for the fine iron ore to be bumped and then spread.
11. The apparatus for charging fine iron ore as claimed in claim 10,
10 wherein the baffle is formed in the shape of a net and thus the fine iron ore are
sunk to the bottom by being bumped and spread and gas is separated upwardly.
12. The apparatus for charging fine iron ore as claimed in claim 4,
wherein the baffle is formed of a plurality of unit baffles arranged in parallel with
15 each other while having a constant distance from each other.
13. The apparatus for charging fine iron ore as claimed in claim 12,
wherein the unit baffle is formed in the shape of any one of a a circle, a
quadrangle, an oval, a polygon, and the like.
20
14. The apparatus for charging fine iron ore as claimed in claim 13,
wherein the plurality of unit baffles are arranged in a plurality of columns, and
unit baffles arranged in one column and unit baffles arranged in another column
are arranged in a zigzag manner.