CN107354317A - Vertical side-blown smelting furnace - Google Patents
Vertical side-blown smelting furnace Download PDFInfo
- Publication number
- CN107354317A CN107354317A CN201710764047.9A CN201710764047A CN107354317A CN 107354317 A CN107354317 A CN 107354317A CN 201710764047 A CN201710764047 A CN 201710764047A CN 107354317 A CN107354317 A CN 107354317A
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- China
- Prior art keywords
- heater
- cooling jacket
- flue
- cupola well
- support frame
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
- C22B15/003—Bath smelting or converting
- C22B15/0032—Bath smelting or converting in shaft furnaces, e.g. blast furnaces
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to non-ferrous metallurgy technology field, more particularly to a kind of vertical side-blown smelting furnace, body of heater includes cupola well and shaft, and the exhanst gas outlet of shaft is connected with flue, and body of heater side is provided with support frame, and shaft and flue are individually connected with support frame.The present invention is rational in infrastructure, can effectively avoid body of heater each several part from greatly promoting the stability and reliability of furnace binding due to being damaged caused by gravity and expansive force effect, extend the service life of body of heater, ensure the operating efficiency of smelting furnace.
Description
Technical field
The invention belongs to non-ferrous metallurgy technology field, more particularly to a kind of vertical side-blown smelting furnace.
Background technology
The modern advanced technologies of copper concentrate melting production copper matte regulus mainly include flash smelting and bath smelting, both techniques
Use oxygen-enriched air smelting technology.The metallurgical furnace of oxygen enriched molten bath melting has many types, can be with by the orientation that is blown into of oxygen-enriched air
It is divided into top blast stove, bottom convertor and side-blown converter.The Wa Niukefu stoves of former Soviet Union's design belong to oxygen-enriched bilateral blown converter, are shaft furnace, in
Nineteen eighty-two starts to put into industrial production, is proven it and has that heat loss is big, stove heat endurance is poor, Copper in Slag height
(0.8%-1%), SO2The problems such as loss is serious, the high harm of flue gas free sulfur is serious, thus the technique is never promoted
Using.
Patent ZL200820135242.1 discloses a kind of copper-nickel ore smelting furnace, and the cooling jacket of lower furnace portion surrounding is direct
Seat is on refractory brick, and the upper end of cooling jacket has also built refractory brick by laying bricks or stones, and expanded by heating is easily caused cooling water when such body of heater works
Set deformation, it is impaired cooling water leakage even occurs, and, it is necessary to remove Copper Water Jacket simultaneously when refractory brick is changed in body of heater maintenance, work
Journey amount is big, and stove repaiies time length；Cooling jacket only is disposed with the side wall of body of heater, causing furnace lining to consume, fast, converter life is short, stove
There is 2% gradient at bottom, improves the difficulty of masonry of well, also easily causes clinker and sinks to the bottom to form furnace bottom knot.Recent year is permitted
More smelteries come into operation after being made improvements to Wa Niukefu stoves, but also universal in all kinds of oxygen-enriched bilateral blown converters of operation at present
There are the following problems：
1. furnace binding design is unreasonable, body of heater is poor by heat endurance, so that when cooling element leak, cupola well leakage melt
There is generation；
2. body of heater cooling system imperfection, causing cupola well short life, just blowing out is needed to carry out large repairs within usual 1 year or so, shadow
Ring the production schedule；The regional area seriously corrodeds such as flue gas secondary combustion chamber, copper matte regulus siphon port are repaired, it is necessary to stop material often, shadow
Ring operating rate；
3. caking is serious in cupola well, melting chamber, second-time burning chamber, flue, boiler inlet so that smoke evacuation is difficult, very
To making the working of a furnace produce fluctuation, fusion process disorder, cause clinker copper content high, have a strong impact on smelting furnace operating rate.
The content of the invention
It is an object of the invention to provide a kind of vertical side-blown smelting furnace, and furnace binding is reasonable, stability is good.
To realize object above, the technical solution adopted by the present invention is：A kind of vertical side-blown smelting furnace, body of heater include cupola well
And shaft, the exhanst gas outlet of shaft is connected with flue, and on the basis of cupola well is placed in, body of heater side is provided with support frame, shaft and flue
Individually it is connected with support frame.
Compared with prior art, there is following technique effect in the present invention：Rational in infrastructure, body of heater each several part is not held between each other
By gravity and expansive force.Body of heater each several part can be effectively avoided to greatly promote stove due to being damaged caused by gravity and expansive force effect
The stability and reliability of body structure, extend the service life of body of heater, ensure the operating efficiency of smelting furnace.
Brief description of the drawings
The content expressed by each accompanying drawing of this specification and the mark in figure are briefly described below：
Fig. 1 is the top view of the present invention；
Fig. 2 is the a-a diagrammatic cross-sections in Fig. 1；
Fig. 3 is the b-b diagrammatic cross-sections in Fig. 2.
In figure：10. cupola well, 11. copper matte regulus siphons, 12. clinker depositing reservoirs, 20. shafts, 21. smelting parts, 211. first wind
Mouthful, 212. dredgers, 22. second-time burning portions, 221. second air ports, 222. burner ports, 30. flues, 31. burners, 40.
Support frame, 41. columns, 42. beams, 43. suspender members, 44. lacing wires, 45. brackets, 46. bottom girders, 51. first cooling jackets, 52.
Two cooling jackets, 521. vertical sections, 522. expansion segments, 53. the 3rd cooling jackets, 54. the 4th cooling jackets, 55. the 5th coolings
Water jacket, 56. the 6th cooling jackets, 57. the 7th cooling jackets.
Embodiment
Below in conjunction with the accompanying drawings, by the description to embodiment, the embodiment of the present invention is made further specifically
It is bright.
A kind of vertical side-blown smelting furnace, as Figure 1-3, body of heater include cupola well 10 and shaft 20, and the flue gas of shaft 20 goes out
Mouth is connected with flue 30, and body of heater side is provided with support frame 40, and shaft 20 and flue 30 are individually connected with support frame 40.Body of heater
Each several part on support frame 40 and mainly An Zhuan not provide support force by support frame 40, when can effectively avoid the smelting furnace from working, stove
Damaged between cylinder 10 and shaft 20, shaft 20 and flue 30 in the presence of gravity and thermal expansion force, even result in melt,
Cooling water is revealed, and so as to lift the reliability and stability of furnace binding, is extended the service life of body of heater, is ensured the work of smelting furnace
Industry efficiency.
Preferably, described support frame 40 is the tower structure connected and composed by column 41 and beam 42, and shaft 20 includes
Smelting part 21 and second-time burning portion 22, smelting part 21 and second-time burning portion 22 are connected with column 41 and/or beam 42 respectively, flue 30
The lower section of the roof racks of support frame 40 is overhang by suspender member 43.Smelting part 21, second-time burning portion 22 and flue 30 are single respectively
Solely the primary structure member with support frame 40 is connected, and makes its Path of Force Transfer rationally, reliably, so that support frame 40 can effectively carry stove
Body structure.
For ease of narration, the beam 42 perpendicular to body of heater length direction arrangement is referred to as crossbeam, along body of heater length direction arrangement
Beam 42 is referred to as longeron；The wall body arranged along body of heater length direction is side wall, and the wall body arranged along body of heater width is referred to as end wall.
Specifically, as shown in figure 3, the wall body of the smelting part 21 is connected with beam 42, and the side wall of smelting part 21 passes through lacing wire
44 are connected with the column 41 positioned at its side or beam 42, and second-time burning portion 22 is placed on the bracket 45 of the corresponding arrangement of column 41.It is logical
In the case of often, the wall body weight of smelting part 21 is smaller, and the wall body weight in second-time burning portion 22 is larger, so, the wall body of smelting part 21
Directly it is connected by bolt with beam 42 and just can guarantee that the reliability of its installation, the setting of lacing wire 44 then can further lifts smelting part
The stability of 21 wall bodies；Because bracket 45 can preferably transmit vertical load, thus the wall body in second-time burning portion 22 is shelved on ox
On leg 45, while reliable carrying of the support frame 40 to second-time burning portion 22 is ensured, moreover it is possible to ensure the steady of support frame 40 itself
It is qualitative.
Preferably, described cupola well 10 is placed on the bottom support body of support frame 40, and furnace bottom pressure is stacked on the bottom girder of support frame 40
On 46, the side wall of cupola well 10 and end wall are connected with column 41 and/or beam 42, and such cupola well 10 is also connected with support frame 40, is both easy to
The installation of furnace binding, and can lifting support frame 40 stability of itself；When it is implemented, bottom girder 46 is laid on armored concrete
On the basis of, cupola well 10 is located at the enclosing in region of the support body of support frame 40, and the side wall and end wall of cupola well 10 can by spring equal length
The part of tune is fixed with column 41 and/or the tensioning of beam 42, just can while 10 stability of cupola well is ensured, avoid support frame 40 by
The effect of thermal expansion force deforms equivalent damage.
Preferably, cooling element 50 is respectively disposed with the cupola well 10, shaft 20 and flue 30, cooling element 50 is installed
On support frame 40, when so repairing body of heater, the refractory material between cooling element 50 can be only removed, is not required to remove cooling member
Part 50, maintenance engineering amount can be greatly reduced, shorten maintenance time.Left between cooling element 50 and body of heater construction material for holding
Receive the gap of body of heater expanded by heating volume, the structural failure after body of heater construction material thermal expansion can be avoided to cause body of heater heated,
The generation of body of heater deformation leakage melt and cooling element leakage accident is prevented, lifts the stability of body of heater.
Specifically, the first cooling jacket 51 in vertical guide is folded with all portion's wall bodies of the cupola well 10, first
The height of cooling jacket 51 is 450mm~550mm, and the top of the first cooling jacket 51 and the spacing of the top surface of cupola well 10 are 300-
700mm.First cooling jacket 51 is located at slag line area, that is, the surge area of copper matte regulus liquid level, can effectively extend making for cupola well 10
With life-span, the durability of lifting cupola well 10.To avoid influenceing the discharge of copper matte regulus in the present embodiment, cupola well 10 is provided with copper matte regulus siphon
The first cooling jacket 51 is not provided with 11 headwall, that is to say, that the first cooling jacket 51 is arranged in the side walls of cupola well 10
On the headwall relative with the headwall with setting copper matte regulus siphon 11, wherein, the end relative with setting the headwall of copper matte regulus siphon 11
Wall is the headwall of clinker depositing reservoir 12.More specifically, the side wall of cupola well 10 and end wall inner side lined with refractory bricks in the present embodiment, the
One cooling jacket 51 is arranged on the outside of the refractory brick so that the first cooling jacket 51 is located in the fire resisting of the inside lining cutting of cupola well 10
Between brick and outside wall body.
Smelting part 21 is provided with the first air port 211, the top surface distance of cupola well 10 along the two side on body of heater length direction
The center line 500-550mm in one air port 211, making cupola well, avoiding the strong agitation of reaction material near air port influences stove away from air port
The life-span of clinker tile body.
Integrally in up big and down small horn-like, the wall body of smelting part 21 is all made up of the chamber of smelting part 21 cooling jacket,
The side wall of smelting part 21 is spliced by the second cooling jacket 52 along body of heater length direction, and the second cooling jacket 52 includes vertical section
521 and expansion segment 522, vertical section 521 be located in vertical guide, expansion segment 522 and vertical guide are into angle and to body of heater outer inclination
Arrangement, use demand, easy for installation and good leak tightness can be met by being arranged so as to the second cooling jacket 52 of individual layer.Smelting part 21
Two headwalls be spliced by zigzag Copper Water Jacket, improve erosion resistibility, while reduce body of heater radiating.
The smoke outlet in second-time burning portion 22 is provided with the 3rd cooling jacket 53 of multiple-layer horizontal arrangement, and horizontally disposed the
Three cooling jackets 53 and the building materials arranged stacked in second-time burning portion 22, in sandwich-like, the two collectively forms second-time burning
The wall body of the smoke outlet of portion 22.The wall body of the smoke outlet of second-time burning portion 22 mentioned here include second-time burning portion 22 with
The two side of the junction of flue 30 and end wall, totally three face the wall and meditate body, wherein end wall is second-time burning portion 22 close to clinker depositing reservoir 12
End wall.It is laid with the 4th cooling jacket 54 at the smoke inlet of flue 30,54 preferred zigzag Copper Water Jacket of the 4th cooling jacket,
Improve the erosion resistibility at the smoke inlet of the smoke outlet of second-time burning portion 22 and flue 30.
Further, the bottom of second cooling jacket 52 and top are respectively equipped with the five, the six horizontally disposed coolings
Water jacket 55,56, the 5th cooling jacket 55 are placed in the top surface of cupola well 10, and the 6th cooling jacket 56 is placed in the bottom surface in second-time burning portion 22
And it is located between top surface and the second-time burning portion 22 of bracket 45.Five, the six cooling jackets 55,56 can lift the top surface of cupola well 10 and two
The erosion resistibility of the secondary bottom surface building block of combustion section 22, also cause the second cooling jacket 52 and cupola well 10, the company in second-time burning portion 22
Connect more reliable and stable.
Further, one end on the length direction of cupola well 10 is provided with copper matte regulus siphon 11, and the relative other end is provided with
Clinker depositing reservoir 12, the sidepiece of clinker depositing reservoir 12 also are provided with copper matte regulus siphon 11, the porch of the copper matte regulus siphon 11
The 7th cooling jacket 57 is disposed with the end wall of top, in the present embodiment, the 7th cooling jacket 57 is located in vertical guide, away from furnace bottom
680mm, away from end inside wall surface 450mm, the high 600mm of water jacket.Copper matte regulus siphon 11, energy are set up in the sidepiece of clinker depositing reservoir 12
Adapt to a large amount of, the continuous production of copper matte regulus；7th cooling jacket 57 is located in the masonry of the porch of copper matte regulus siphon 11, can be effective
Its durability is lifted, extends the service life of masonry structure, ensures the operating rate of smelting furnace.
More than each cooling element collective effect, body of heater can be avoided to damage, slow down furnace binding corrosion, so as to by the body of heater longevity
Life extends one times, greatly reduces body of heater maintenance cost, reduces blowing out loss.
Preferably, the furnace wall thickness of the cupola well 10 is 700mm~1000mm, and furnace bottom thickness is 1200mm~1500mm,
Furnace bottom and furnace wall thickness are larger to ensure the heat-insulating property of cupola well, and furnace bottom and furnace wall use refractory brick body in the present embodiment,
Its outside uses high-strength fireproof clay brick to be further ensured that its heat preservation and insulation, avoids caused by the heat loss of cupola well 10
Caking.Furnace bottom section is in middle arch low, both ends are high, and furnace bottom is horizontally disposed on body of heater length direction, that is to say, that stove
Bottom cross section is antiarch shape and furnace bottom is horizontal without the gradient in the longitudinal direction, can so improve the stability of furnace bottom, and be avoided that
Clinker sinks to the bottom influence production, also allows for building by laying bricks or stones for cupola well.
Smelting part 21 is provided with the first air port 211 along the two side on body of heater length direction, and the level of the first air port 211 is set
Put, the dredger 212 for being used for clearing up air port is provided with the first air port 211；The wall body of smelting part 21 is all by cooling jacket structure
Into the oxygen-enriched air being sent at the first air port 211 in stove is room temperature, and air port nearby easily produces caking, the timing of dredger 212
Air port is cleared up, froth bed perforation caused by siege local pressure caused by can avoiding stove knot is excessive, local wind rate is excessive, so as to
Prevent coefficient of oxygen utilization to be greatly reduced, ensure melt temperature and matte grade.
The wall thickness of second-time burning portion 22 is 600mm~800mm, to ensure the heat-insulating property of wall body.Second-time burning portion 22 is along stove
Two side on body length direction is provided with the second air port 221, and the air supply duct in the second air port 221, which is provided with, is used for open and close the
The operated pneumatic valve in two air ports 221, when operated pneumatic valve is opened, with outdoor inside the second air port 221 connection furnace chamber, due to depositing for the temperature difference
Stove knot is also easy to produce at air port, when operated pneumatic valve closes the second air port 221, under hot environment of the caking in stove at air port just
It can be melted by burning, eliminate the stove knot at overfiren air port 221；At the feed opening in second-time burning portion 22 and smoke outlet is provided with burner port
222, stove knot at this can be eliminated using the burners such as burner heating burner port 222, ensures the stabilization of the working of a furnace.In the present embodiment
In, the inner side in second-time burning portion 22 is built by laying bricks or stones using magnesite-chrome brick, and outside uses high-strength fireproof clay brick masonry；3rd cooling jacket
53 are only located at second-time burning portion 22 at the wall of flue 30, in the case where ensureing wall body scour resistance, reduce radiating.
Flue 30 is vertical flue, and flue 30 is built by laying bricks or stones perpendicular to horizontal plane, also causes bonding while reducing and radiating
Melt can be fallen after rise to smelting furnace, and the internal face lined with refractory material of flue 30 is radiated with further reduce；The height of flue 30
For 8m~10m so that the dust rate of flue gas is less than 2%；Smoke outlet is provided with burner 31 to control the formation of caking；It is excellent
Choosing, the outlet of flue 30 is connected with waste heat boiler level to prevent boiler leak from entering smelting furnace damage body of heater.
Claims (9)
1. a kind of vertical side-blown smelting furnace, body of heater includes cupola well (10) and shaft (20), and the exhanst gas outlet of shaft (20) is connected with
Flue (30), it is characterised in that：Body of heater side is provided with support frame (40), shaft (20) and flue (30) individually with support frame
(40) it is connected.
2. vertical side-blown smelting furnace according to claim 1, it is characterised in that：Described support frame (40) is by column
(41) and the tower structure that connects and composes of beam (42), shaft (20) include smelting part (21) and second-time burning portion (22), melting
Portion (21) and second-time burning portion (22) are connected with column (41) and/or beam (42) respectively, and flue (30) is outstanding by suspender member (43)
Fall in the lower section of support frame (40) roof racks.
3. vertical side-blown smelting furnace according to claim 2, it is characterised in that：The wall body and beam of the smelting part (21)
(42) it is connected, and smelting part (21) side wall is connected by lacing wire (44) with the column (41) positioned at its side or beam (42), it is secondary
Combustion section (22) is placed on the bracket (45) of the corresponding arrangement of column (41).
4. vertical side-blown smelting furnace according to claim 2, it is characterised in that：Described cupola well (10) is placed in support frame
(40) on bottom support body, furnace bottom pressure is stacked on the bottom girder (46) of support frame (40), the side wall and end wall and column of cupola well (10)
(41) and/or beam (42) is connected.
5. the vertical side-blown smelting furnace according to any one of claim 1-4, it is characterised in that：The cupola well (10), stove
Cooling element (50) is respectively disposed with body (20) and flue (30), cooling element (50) is arranged on support frame (40), cooling
The gap for accommodating body of heater expanded by heating volume is left between element (50) and body of heater construction material.
6. vertical side-blown smelting furnace according to claim 5, it is characterised in that：All portion's wall body inner clips of the cupola well (10)
Provided with the first cooling jacket (51) in vertical guide, the height of the first cooling jacket (51) is 450mm~550mm, first
The top of cooling jacket (51) and the spacing of cupola well (10) top surface are 300-700mm；
Smelting part (21) is provided with the first air port (211) along the two side on body of heater length direction, the top surface distance of cupola well (10)
The center line 500-550mm in the first air port (211)；
Integrally in up big and down small horn-like, the wall body of smelting part (21) is all made up of smelting part (21) chamber cooling jacket,
The side wall of smelting part (21) is spliced by the second cooling jacket (52) along body of heater length direction, and the second cooling jacket (52) includes
Vertical section (521) and expansion segment (522), vertical section (521) are located in plummet face, expansion segment (522) and vertical guide into angle simultaneously
Arranged to body of heater outer inclination；
The smoke outlet in second-time burning portion (22) is provided with the 3rd cooling jacket (53) of multiple-layer horizontal arrangement, the cigarette of flue (30)
Gas porch is laid with the 4th cooling jacket (54).
7. vertical side-blown smelting furnace according to claim 6, it is characterised in that：The bottom of second cooling jacket (52)
Horizontally disposed the five, the six cooling jackets (55,56) are respectively equipped with top, the 5th cooling jacket (55) is placed in cupola well (10)
Top surface, the 6th cooling jacket (56) are placed in the bottom surface in second-time burning portion (22) and positioned at bracket (45) top surfaces and second-time burning portion
(22) between.
8. vertical side-blown smelting furnace according to claim 6, it is characterised in that：One on cupola well (10) length direction
End is provided with copper matte regulus siphon (11), and the relative other end is provided with clinker depositing reservoir (12), and the sidepiece of clinker depositing reservoir (12) is also set
There is copper matte regulus siphon (11), the 7th cooling jacket (57) is disposed with the top end wall of copper matte regulus siphon (11) porch.
9. the vertical side-blown smelting furnace according to claim 1-4, it is characterised in that：The furnace wall thickness of the cupola well (10) is
700mm~1000mm, furnace bottom thickness are 1200mm~1500mm, and furnace bottom section exists in middle arch low, both ends are high and furnace bottom
It is horizontally disposed on body of heater length direction；
Smelting part (21) is provided with the first air port (211) along the two side on body of heater length direction, and the first air port (211) level is set
Put, and the first air port (211) place is provided with the dredger (212) for being used for clearing up air port；
Second-time burning portion (22) wall thickness is 600mm~800mm, and second-time burning portion (22) are along the two side on body of heater length direction
Provided with the second air port (221), the air supply duct of the second air port (221) is provided with the pneumatic operated valve for the air port of open and close second (221)
, at the feed opening of second-time burning portion (22) and smoke outlet is provided with burner port (222).
Flue (30) is vertical flue, and the height of flue (30) is 8m~10m, and inner lining refractory, smoke outlet, which is provided with, to be fired
Burn device (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710764047.9A CN107354317A (en) | 2017-08-30 | 2017-08-30 | Vertical side-blown smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710764047.9A CN107354317A (en) | 2017-08-30 | 2017-08-30 | Vertical side-blown smelting furnace |
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| Publication Number | Publication Date |
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| CN107354317A true CN107354317A (en) | 2017-11-17 |
Family
ID=60290448
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710764047.9A Pending CN107354317A (en) | 2017-08-30 | 2017-08-30 | Vertical side-blown smelting furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048785A (en) * | 2021-03-22 | 2021-06-29 | 中国恩菲工程技术有限公司 | Electric stove |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005326076A (en) * | 2004-05-13 | 2005-11-24 | Hs Corporation:Kk | Waste incinerator |
| CN203053244U (en) * | 2012-12-31 | 2013-07-10 | 中国瑞林工程技术有限公司 | Hanging device of flash furnace uptake flue |
| CN105698529A (en) * | 2015-10-27 | 2016-06-22 | 中国恩菲工程技术有限公司 | Improved type side-blowing molten pool smelting furnace |
| CN207391514U (en) * | 2017-08-30 | 2018-05-22 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Vertical side-blown smelting furnace |
-
2017
- 2017-08-30 CN CN201710764047.9A patent/CN107354317A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005326076A (en) * | 2004-05-13 | 2005-11-24 | Hs Corporation:Kk | Waste incinerator |
| CN203053244U (en) * | 2012-12-31 | 2013-07-10 | 中国瑞林工程技术有限公司 | Hanging device of flash furnace uptake flue |
| CN105698529A (en) * | 2015-10-27 | 2016-06-22 | 中国恩菲工程技术有限公司 | Improved type side-blowing molten pool smelting furnace |
| CN207391514U (en) * | 2017-08-30 | 2018-05-22 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Vertical side-blown smelting furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048785A (en) * | 2021-03-22 | 2021-06-29 | 中国恩菲工程技术有限公司 | Electric stove |
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