U.S. patent application number 13/188558 was filed with the patent office on 2013-01-24 for automatic continuous feeding device of metallurgical furnace.
The applicant listed for this patent is WEN YUAN CHANG. Invention is credited to WEN YUAN CHANG.
Application Number | 20130020745 13/188558 |
Document ID | / |
Family ID | 47555243 |
Filed Date | 2013-01-24 |
United States Patent
Application |
20130020745 |
Kind Code |
A1 |
CHANG; WEN YUAN |
January 24, 2013 |
AUTOMATIC CONTINUOUS FEEDING DEVICE OF METALLURGICAL FURNACE
Abstract
An automatic continuous feeding device of a metallurgical
furnace includes an outer barrel and a plurality of inner barrels.
The outer barrel includes an accommodation space having an out-feed
channel communicated to a reduction furnace. An out-feed gate is
disposed on the out-feed channel of the outer barrel. The inner
barrels utilized to receive a material are disposed in the
accommodation space of the outer barrel. Each of the inner barrels
includes an in-feed opening and an out-feed opening, wherein the
in-feed opening passing through the outer barrel to communicate to
an exterior is enclosed by an openable cover enclosing mechanism,
and an inner-barrel lower cover is disposed on each of the out-feed
openings. The accommodation space of the outer barrel can be kept
at an environmental temperature and pressure equal to that of the
reduction furnace, to perform multiple feeding operations in an
environment with constant temperature and pressure.
Inventors: |
CHANG; WEN YUAN; (MIAOLI
COUNTY, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
CHANG; WEN YUAN |
MIAOLI COUNTY |
|
TW |
|
|
Family ID: |
47555243 |
Appl. No.: |
13/188558 |
Filed: |
July 22, 2011 |
Current U.S.
Class: |
266/265 |
Current CPC
Class: |
F27B 5/12 20130101; F27B
5/04 20130101; C21C 7/10 20130101; F27D 2003/0018 20130101 |
Class at
Publication: |
266/265 |
International
Class: |
C21B 7/16 20060101
C21B007/16 |
Claims
1. An automatic continuous feeding device of a metallurgical
furnace, at least comprising: an outer barrel comprising an
accommodation space with a bottom including an out-feed channel
communicated to an interior of a reduction furnace; and a plurality
of inner barrels utilized to receive a material and disposed in the
accommodation space of the outer barrel, each of the inner barrels
at least including an out-feed opening, an inner-barrel lower cover
being operably opened and disposed on each of the out-feed openings
of the inner barrels.
2. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 1, wherein each of the inner barrels
further comprises an in-feed opening at least passing through the
outer barrel to communicate to an exterior, and each of the in-feed
openings of the inner barrels is enclosed by an openable cover
enclosing mechanism.
3. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 2, wherein the cover enclosing
mechanism is an upper cover disposed on the outer barrel, and the
upper cover is operable to simultaneously enclose the in-feed
openings of each of the inner barrels.
4. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 2, wherein the cover enclosing
mechanism is an inner barrel upper cover disposed on the in-feed
opening of each of the inner barrels.
5. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 1, wherein an out-feed gate is disposed
on the out-feed channel.
6. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 2, wherein an out-feed gate is disposed
on the out-feed channel.
7. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 3, wherein an out-feed gate is disposed
on the out-feed channel.
8. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 4, wherein an out-feed gate is disposed
on the out-feed channel.
9. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 1, wherein a material guiding portion
is disposed between the outer barrel and the out-feed channel.
10. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 2, wherein a material guiding portion
is disposed between the outer barrel and the out-feed channel.
11. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 3, wherein a material guiding portion
is disposed between the outer barrel and the out-feed channel.
12. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 4, wherein a material guiding portion
is disposed between the outer barrel and the out-feed channel.
13. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 5, wherein a material guiding portion
is disposed between the outer barrel and the out-feed channel.
14. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 6, wherein a material guiding portion
is disposed between the outer barrel and the out-feed channel.
15. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 7, wherein a material guiding portion
is disposed between the outer barrel and the out-feed channel.
16. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 8, wherein a material guiding portion
is disposed between the outer barrel and the out-feed channel.
17. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 9, wherein the material guiding portion
comprises a hopper shape.
18. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 10, wherein the material guiding
portion comprises a hopper shape.
19. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 11, wherein the material guiding
portion comprises a hopper shape.
20. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 12, wherein the material guiding
portion comprises a hopper shape.
21. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 13, wherein the material guiding
portion comprises a hopper shape.
22. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 14, wherein the material guiding
portion comprises a hopper shape.
23. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 15, wherein the material guiding
portion comprises a hopper shape.
24. The automatic continuous feeding device of the metallurgical
furnace as claimed in claim 16, wherein the material guiding
portion comprises a hopper shape.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to an automatic continuous
feeding device of a metallurgical furnace, and in particular
relates to a feeding device capable of performing a process of
adding new mixed material without destroying an initial sealing
status inside the metallurgical furnace.
[0003] 2. Description of the Related Art
[0004] Conventionally, graphite-arc heating reduction furnaces for
the reduction of silicon material from silicon sand (silica sand)
are utilized to gradually heat a mixed material containing silicon
sand, coke, coal and wood, from a furnace temperature approaching
the environmental temperature to a high temperature of 1500.degree.
C. to 2500.degree. C., such that the reduction process of the
material to be returned can be fulfilled. After the reduction
process above is finished, the temperature of the reduction furnace
shall be lowered to a temperature of 250.degree. C., i.e., a
temperature approaching the environmental temperature for
extracting reduction resultant from the reduction furnace, avoiding
the impairs on the equipment, quality of the resultant or
operational environment under the acute change of temperature. The
next batch of material to be returned is allowed to transmit to the
reduction furnace after the resultant (silicon) is removed from the
reduction furnace, and the reduction furnace is gradually heated up
to the temperature of 1500.degree. C. to 2500.degree. C. from a
furnace temperature approaching the environmental temperature above
for performing the reduction process.
[0005] Due to the large temperature difference between the furnace
body and the environment, if the reduction furnace is opened at the
temperature of 1500.degree. C. to 2500.degree. C., explosion is
possibly occurred and massive high-temperature fluid entering the
operation environment results in contaminations and damages to the
operation environment and operators on the spot. Even worse is that
the high-temperature silicon resultant obtained from reduction
process has a sudden temperature drop and possibly generates
structural destruction if the reduction furnace is opened at the
temperature of 1500.degree. C. to 2500.degree. C., and the silicon
resultant contaminated by environmental impurities cannot be
utilized. It is practically estimated that a single process of
silicon reduction (i.e., from the feeding process, the rising
temperature process, the returning process, the dropping
temperature process, to the furnace discharging process) takes
about thirty-two hours, and a large amount of heat energy is
dissipatively wasted in the process of heating the reduction
furnace from the temperature of 250.degree. C. up to the
temperature of 1500.degree. C. to 2500.degree. C. and the process
of lowering the temperature of the reduction furnace to 250.degree.
C. for accessing the reduction resultant. Due to the lengthy
processing time and in particular of the unceasing damages to the
environment and waste of energy in the entire operation process,
this conventional metallurgical reduction method costs too much and
therefore cannot be deemed as an environmental-protective
industrial technique.
[0006] For this reason, the inventor of this application provides
an invention application, METALLURGICAL SEPARATE REDUCTION METHOD
AND EQUIPMENT THEREOF of Taiwan Patent Application No. 100109820,
mainly utilizing a reduction furnace combined with a sectionable
cooling device to provide a separately reduction metallurgical
equipment to perform the metallurgical and cooling processes of the
entire metallurgical reduction process at different separate
spaces, so that the operations of the metallurgical and cooling
processes of the metallurgical reduction furnace are not limited in
the reduction furnace, and therefore the disadvantages such as a
lengthy waiting time of feeding material, unable-raised
productivity and large amount of waste of energy in the
conventional metallurgical reduction method can be improved.
However, although '820 patent application discloses the method of
retaining the sealed and isobaric space inside the reduction
furnace in the metallurgical and cooling processes, in the actual
application, with the traditional feeding device, the feeding
operation could only be conducted in single time, a mixed material
must be refilled into the said reduction furnace after every
metallurgical process is finished; if the sealed status between the
feeding device and the reduction furnace failed to be maintained
well when the mixed material is injected into the reduction
furnace, both of the temperature and pressure inside the reduction
furnace may be decreased, resulting in the lengthy waiting time and
waste of energy. Thus, it is essential to provide a feeding device
incorporable with the reduction furnace above for shortening
working time, increasing metallurgical efficiency and productivity
and decreasing waste of energy, under the circumstances of
minimizing the destroyed sealing status inside the metallurgical
furnace to finish the refilling process of the new mixed
material.
BRIEF SUMMARY OF THE INVENTION
[0007] In view of this, the invention provides an automatic
continuous feeding device of a metallurgical furnace for overcoming
the disadvantages of the feeding device of the conventional
reduction furnace.
[0008] The main purpose of the present invention is to provide an
automatic continuous feeding device of a metallurgical furnace,
performing several feeding processes to enhance the overall
productivity without altering the temperature and pressure inside
the reduction furnace.
[0009] Another purpose of the present invention is to provide an
automatic continuous feeding device of a metallurgical furnace,
decreasing the waiting time of feeding material and reducing waste
of energy on the repetitive temperature drop and rise of the
metallurgical furnace.
[0010] To achieve the purposes and effects above, the technical
means adopted by the present invention includes an outer barrel and
a plurality of inner barrels. The outer barrel comprises an
accommodation space with a bottom including an out-feed channel
communicated to an interior of a reduction furnace. The inner
barrels utilized to receive a material are respectively disposed in
the accommodation space of the outer barrel, and each of the inner
barrels at least including an out-feed opening. An inner-barrel
lower cover being operably opened is disposed on each of the
out-feed openings of the inner barrels.
[0011] According to the structure above, each of the inner barrels
further comprises an in-feed opening at least passing through the
outer barrel to communicate to an exterior, and each of the in-feed
openings of the inner barrels is enclosed by an openable cover
enclosing mechanism.
[0012] According to the structure above, the cover enclosing
mechanism is an upper cover disposed on the outer barrel, and the
upper cover is operable to simultaneously enclose the in-feed
openings of each of the inner barrels.
[0013] According to the structure above, the cover enclosing
mechanism is an inner barrel upper cover disposed on the in-feed
opening of each of the inner barrels.
[0014] According to the structure above, an out-feed gate is
disposed on the out-feed channel.
[0015] According to the structure above, a material guiding portion
is disposed between the outer barrel and the out-feed channel.
[0016] According to the structure above, the material guiding
portion has a hopper shape.
[0017] A detailed description is given in the following embodiments
with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention can be more fully understood by
reading the subsequent detailed description and examples with
references made to the accompanying drawings, wherein:
[0019] FIG. 1 is a schematic perspective view showing a structure
of a first embodiment of the invention;
[0020] FIG. 2 is a sectional view showing a whole structure of the
first embodiment of the invention;
[0021] FIG. 3 is a schematic view showing the condition of
refilling material of the first embodiment of the invention;
[0022] FIG. 4 is a schematic view showing the condition of feeding
material of the first embodiment of the invention;
[0023] FIG. 5 is a schematic view showing the condition of feeding
material of the first embodiment of the invention; and
[0024] FIG. 6 is a schematic perspective view showing a structure
of a second embodiment of the invention.
DETAILED DESCRIPTION OF THE INVENTION
[0025] The following description is of the best-contemplated mode
of carrying out the invention. This description is made for the
purpose of illustrating the general principles of the invention and
should not be taken in a limiting sense. The scope of the invention
is best determined by reference to the appended claims.
[0026] Referring to FIGS. 1 and 2, an automatic continuous feeding
device `A` of a metallurgical furnace of a first embodiment of the
invention mainly comprises an outer barrel 1 and a plurality of
inner barrels 2. The outer barrel 1 comprises an accommodation
space 11 therein and an out-feed channel 12 disposed on a bottom of
the accommodation space 11. A hopper-shaped material guiding
portion 15 is disposed between the outer barrel 1 and the out-feed
channel 12. An out-feed gate 13 being controllably opened or closed
is disposed on the out-feed channel 12. The inner barrels 2 are
disposed in the accommodation space 11 of the outer barrel 1, and
each of the inner barrels 2 includes an in-feed opening 21 passing
through the outer barrel 1 to communicate to an exterior, so that a
material D to be treated and processed from the exterior can be
directly refilled in the inner barrels 2 through the in-feed
openings 21. Further, an openable cover enclosing mechanism is
disposed on each of the in-feed openings 21 of the inner barrels 2.
In this embodiment, the cover enclosing mechanism is an upper cover
14 disposed on the outer barrel 1, so that the in-feed openings 21
of the inner barrels 2 can be simultaneously opened or enclosed by
the upper cover 14. An out-feed opening 22 corresponding to the
out-feed channel 12 is disposed on one side of each of the inner
barrels 2, and an operably opened inner-barrel lower cover 23 is
disposed on each of the out-feed openings 22 of the inner barrels
2.
[0027] Referring to FIGS. 3 to 5, in actual application of the
feeding device `A` of the first embodiment, the out-feed gate 13 is
extended to an upper of a reduction boiler 5 by a feeding tube 131.
The reduction boiler 5 is disposed in an inner furnace space 31
formed by an inner wall 3 of a reduction furnace B, and the
out-feed channel 12 of the outer barrel 1 is communicated to an
interior of the reduction furnace B. The reduction furnace B
further comprises an outer wall 30 disposed on an outer periphery
of the inner wall 3. A heating device 4 is disposed in the inner
furnace space 31 of the reduction furnace B. An extractable
stirring device C is externally passed through the reduction
furnace B to extend to the inside of the reduction boiler 5. An
out-feed channel 32 for external communication is disposed on a
bottom of the reduction furnace B, and an out-feed gate 33 is
disposed on the out-feed channel 32.
[0028] In operation, when the cover enclosing mechanism (upper
cover 14) is opened, the material D to be treated and processed
from the exterior can be directly refilled in each of the inner
barrels 2 through the in-feed openings 21 (shown in FIG. 3), and
then the cover enclosing mechanism (upper cover 14) is closed to
enclose each of the in-feed openings 21 of the inner barrels 2.
After the outer barrel 1 is heated to an adequate operation
temperature and pressure, the inner-barrel lower cover 23 of one of
the inner barrels 2 and the out-feed gate 13 are first opened, so
that the material D can be directly guided into the reduction
boiler 5 (shown in FIG. 4) to perform the predetermined process.
After the predetermined process is completed, the out-feed gate 33
is opened to allow the processed material D from the reduction
boiler 5 to be poured in the out-feed channel 32, so that the
processed material D can be outwardly transmitted in accordance
with the disclosure of METALLURGICAL DIVISIONAL REDUCTION METHOD
AND EQUIPMENT THEREOF of Taiwan Patent Application No. 100109820.
Then, the inner-barrel lower cover 23 of another inner barrel 2 and
the out-feed gate 13 are opened to perform another process of
reduction (shown in FIG. 5). Without altering the inner temperature
and pressure of the outer barrel 1 to perform multiple feeding
operations (i.e., guiding the material D located in each of the
inner barrels 2 to the reduction boiler 5), the integral
productivity can be increased, the delay time of feeding can be
decreased, and the energy consumption on the repetitive temperature
drop and rise of the metallurgical furnace can be decreased.
[0029] Referring to FIG. 6, a feeding device A' of a metallurgical
furnace of a second embodiment of the invention mainly comprises an
outer barrel 10 and a plurality of inner barrels 20. The outer
barrel 10 comprises an accommodation space 101 therein and an
out-feed channel 102 disposed on a bottom of the accommodation
space 101. A hopper-shaped material guiding portion 105 is disposed
between the outer barrel 10 and the out-feed channel 102. The inner
barrels 20 are disposed in the accommodation space 101 of the outer
barrel 10. Each of the inner barrels 20 includes an in-feed opening
201 passing through the outer barrel 10 to communicate to an
exterior, so that a material D to be treated and processed from the
exterior can be directly refilled in the inner barrels 20 through
the in-feed openings 201. Further, an openable cover enclosing
mechanism is disposed on each of the in-feed openings 201 of the
inner barrels 20. In this embodiment, the cover enclosing mechanism
comprises a plurality of inner barrel upper covers 204 respectively
pivoted to the in-feed openings 201 of the inner barrels 20, so
that the in-feed openings 201 of the inner barrels 20 can be opened
or enclosed by the inner barrel upper cover 204. The inner barrel
upper covers 204 are respectively disposed on the in-feed openings
201 of the inner barrels 20, an out-feed opening 202 corresponding
to the out-feed channel 102 is disposed on one side of each of the
inner barrels 20, and an operably opened inner-barrel lower cover
203 is disposed on each of the out-feed openings 202 of the inner
barrels 20.
[0030] In actual applications of the feeding device A' of the
metallurgical furnace of the second embodiment of the invention,
the outer barrel 10 combined to the reduction furnace B and the
operation thereof are equal to those of the first embodiment. The
major difference between the second embodiment and the first
embodiment is that the cover enclosing mechanism of the second
embodiment comprises the inner barrel upper covers 204 respectively
disposed on the in-feed openings 201 of the inner barrels 20, and
the inner barrel upper covers 204 can be individually utilized to
open or close the in-feed openings 201 of the inner barrels 20, so
that the material D from the exterior can be directly refilled in
the inner barrels 20 through the in-feed openings 201.
[0031] In the disclosed structures of the embodiments above, there
still have several structural variations in the actual
applications. For example, a supporting frame disposed in the outer
barrel 1 can be utilized to operably fix the inner barrels 2 in the
outer barrel 1, and the top side of the outer barrel 1 is formed
with a hollow opening enclosed by the upper cover 14, wherein the
inner barrels 2 is still provided with the out-feed opening 22 and
the inner-barrel lower cover 23, the inner barrels 2 can be
prefilled with the material D from a place outside the outer barrel
1, i.e., the design of the in-feed openings 21 of the inner barrels
2 can be omitted and the inner barrels 2 can be directly prefilled
with the material D through the out-feed openings 22 thereof from a
place outside the outer barrel 1, and then the inner barrels 2 are
simultaneously disposed in the accommodation space 11 of the outer
barrel 1, and the same function and effect as the embodiments above
can be achieved accordingly.
[0032] In summary, the present invention provides an automatic
continuous feeding device of a metallurgical furnace for shortening
working time, increasing metallurgical efficiency and productivity
and decreasing waste of energy.
[0033] While the invention has been described by way of example and
in terms of the preferred embodiments, it is to be understood that
the invention is not limited to the disclosed embodiments. To the
contrary, it is intended to cover various modifications and similar
arrangements (as would be apparent to those skilled in the art).
Therefore, the scope of the appended claims should be accorded the
broadest interpretation so as to encompass all such modifications
and similar arrangements.
* * * * *