CN106288815A - A kind of vibration premixed type concentrate burner - Google Patents
A kind of vibration premixed type concentrate burner Download PDFInfo
- Publication number
- CN106288815A CN106288815A CN201610632799.5A CN201610632799A CN106288815A CN 106288815 A CN106288815 A CN 106288815A CN 201610632799 A CN201610632799 A CN 201610632799A CN 106288815 A CN106288815 A CN 106288815A
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- China
- Prior art keywords
- dispersion
- airduct
- vibration
- material feeding
- concentrate burner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/18—Charging particulate material using a fluid carrier
-
- 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
- C22B15/0047—Smelting or converting flash smelting or converting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
- F27D25/001—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag comprising breaking tools, e.g. hammers, drills, scrapers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/01—Charges containing mainly non-ferrous metals
- F27M2001/015—Copper
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention open one vibration premixed type concentrate burner, overlap and the oxygen supplying tube of the most sheathed layout, the dispersion airduct of hollow annular including tube core, and form the taper technique bellows of air compartment, the material feeding box of the opening obliquely at its top it is arranged with on the outer wall of described dispersion airduct, and the dispersion airduct top of hollow annular is fixed with the fixed plate of level, in fixed plate, the end away from dispersion wind pipeline is fixed with by driving dispersion airduct to pump and the pneumatic hammer vibrating device of dross of shaking；Charging aperture premix air port upward, air port it is provided with on the downside of material feeding box opening；Technique bellows entrance is provided with the technique wind rotation direction device making gas tangentially premix fine ore；Dispersion airduct is additionally provided with and leads to the independence premix supply air line bottom material feeding box and pre-mixed air bundle device, outside material feeding box, be additionally provided with the inward turning airduct towards discharging opening.The present invention is vibration premixed type concentrate burner, it is possible to effectively reduce dross phenomenon, the combustion efficiency of raising copper concentrate mineral aggregate.
Description
Technical field
The invention belongs to the technical field of smelting of copper, be specifically related to a kind of vibration premixed type concentrate burner.
Background technology
In the Flash Smelting Furnace smelting technology of copper, it is that concentrate burner is set at smelting furnace top and for the technique blasting technique wind
Bellows, spray into copper concentrate mineral aggregate, oxygen and dispersion wind by concentrate burner, in the bottom of concentrate burner, ore deposit in smelting furnace
Material mixes with technique wind and ignition forms slag and matte, and mineral aggregate and technique wind realize being sufficiently mixed, and this is that mineral aggregate is in essence
Carry out in the space that nozzle bottom, ore deposit is limited rapidly, one of the essential condition of complete oxidation.
At present, the concentrate burner that copper mine enterprise uses is the central authorities' expansion being designed by Outokumpu company and being produced mostly
Dissipate type concentrate burner, as it is shown in figure 1, the feature of concentrate burner is mineral aggregate and technique wind sprays in stove in the same direction, mainly pass through gas phase
With the purpose that solid phase phase counterdiffusion, infiltration reach mixing, use this central authorities diffused concentrate burner when carrying out low level material spray, also
That is the entrance of mineral aggregate is when technique wind exports, mineral aggregate is easier to mix with technique wind, but when high-order material spray, also just says
The entrance of mineral aggregate is higher, when still having certain difference in height with the outlet of technique wind, and now mineral aggregate response time relative delay, separately
Outward, when the input amount of mineral aggregate is less, entering stove mineral aggregate can be heated to reaction temperature by furnace high-temperature flue gas or radiant heat rapidly,
And begin in the range of about 1.5m violent combustion reaction exporting apart from concentrate burner, and the input amount of mineral aggregate is more
Time, in the finite spatial extent of reaction tower its top feed mouth, it is difficult to ensure that mineral aggregate is enough sufficiently mixed with technique wind energy, Er Qie
Bonding phenomenon is easily produced bottom concentrate burner；Simultaneously as the water cooled bottom plate of nozzle lower end, serve certain heat insulation and subtract
Few noclulation, but in actual motion, due to longtime running, still create certain dross phenomenon in water cooled bottom plate lower end, from
And leverage the mass transfer of combustion reaction, rate of heat transfer, not only cause the ferroso-ferric oxide content in slag to increase, dust rate
And SO3Production rate rises, and utilization ratio is also decreased obviously, and then affects the production capacity of melting product copper.
Therefore, how to ensure being sufficiently mixed of mineral aggregate and technique wind, improve gas-solid phase counterdiffusion, infiltration, solve at not shadow
Ring under conditions of producing, the problem of periodic cleaning nozzle bottom dross, improve the combustion efficiency of copper concentrate mineral aggregate, flash is melted by this
For sweetening process extremely important.
Summary of the invention
For above-mentioned deficiency, the invention provides a kind of under conditions of not affecting production, periodic cleaning nozzle lower junction
The problem of tumor such that it is able to the vibration premixed type concentrate of the combustion efficiency effectively reduce dross phenomenon, improving copper concentrate mineral aggregate sprays
Mouth.
For achieving the above object, present invention employs techniques below scheme:
A kind of vibration premixed type concentrate burner, overlaps including tube core and the oxygen supplying tube of the most sheathed layout, hollow
Ring-type dispersion airduct, and form the taper technique bellows of air compartment, the outer wall of described dispersion airduct is arranged with at its top
The dispersion airduct top of the material feeding box of opening, and hollow annular obliquely is fixed with the fixed plate of level, in fixed plate away from
The end of dispersion wind pipeline is fixed with by driving dispersion airduct to pump and the pneumatic hammer vibrating device of dross of shaking.
Described pneumatic hammer vibrating device include being installed in the pneumatic hammer on the upside of fixed plate, be connected with pneumatic hammer on the downside of fixed plate strong
Power spring and guide post；The upside of described brute spring is set on described guide post, and the lower end of brute spring is supported on charging
On case.
The lower semisection of described brute spring is sheathed in pilot sleeve, and the upside of pilot sleeve is provided with locking nut, leads
To sleeve by it on the downside of base be fixed on the top of material feeding box, pilot sleeve between locking nut and base
The location-plate being arranged with on stack shell and disperse airduct to be fixedly connected with.
Further, described pneumatic hammer vibrating device uniform cloth in fixed plate is set to 3.
Preferably, the neighbouring downside of described material feeding box opening is provided with charging aperture premix air port upward, air port.
Preferably, described technique bellows are provided with the technique wind rotation direction making gas tangentially premix fine ore at diameter maximum
Device.
Further, described technique wind rotation direction device is set to that the inclined plane along taper technique bellows is parallel and the oblique work that sets
Ethics and practice import, to form the whirlwind that can tangentially premix fine ore.
Preferably, described dispersion airduct is additionally provided with the independence premix supply air line and around this led to bottom material feeding box
Pre-mixed air bundle device in pipeline week side；Described pre-mixed air bundle device is provided with the tangential swing angle tilting 30 ° towards lateral direction.
The beneficial effects of the present invention is:
1), the present invention be provided with pneumatic hammer vibrating device, pneumatic hammer vibrating device include being installed in the pneumatic hammer on the upside of fixed plate,
The brute spring being connected with pneumatic hammer on the downside of fixed plate and guide post；Wherein, described brute spring is set on described guide post；By
In the difference smelted for a long time or concentrate amount is how many, a certain amount of dross phenomenon can be caused in nozzle bottom, when pneumatic hammer is hammered into shape
When hitting, fixed plate is compressed brute spring along guide post therewith thus is driven dispersion airduct to do upper and lower guiding movement, makes dispersion wind
Pipe produces transient vibration, can shake by caking product；Therefore the present invention can clear up dross operation the most automatically, greatly
Improve production efficiency, equipment maintenance cost can be greatly reduced simultaneously.
2), the neighbouring downside of material feeding box opening of the present invention is provided with charging aperture premix air port upward, air port, when through being dried
Powdery concentrate when entering material feeding box, upwards put into charging aperture pre-mixed air by air port so that during bulk concentrate powder feed
Dispersion as far as possible, the unlikely situation causing charging uneven, it is ensured that the reliability service of the present invention.
3), the present invention works as the pre-mixed air bundle that concentrate powder falls to make the gas independently premixing in supply air line tangentially blow out
During device, utilize the tangential swing angle of pre-mixed air bundle device 30 ° to disperse further, improve the effect of gas-solid mixing.
4), the present invention is when when concentrate powder down and disperseing to surrounding by taper technique bellows, by technique wind rotation direction
The whirlwind of device blowout, tangentially premixes fine ore, can improve the fine ore premix time of staying in reversed nozzle, carry further
High premixing effect, improves production efficiency.
5), in sum, the present invention is a kind of vibration premixed type concentrate burner, by dispersion airduct, independent premix supply
Pipeline and pre-mixed air bundle device, charging aperture premix air port air intake obliquely, that technique wind rotation direction device carries out its cloth of multiple premix is equal
Even, inner space can be made full use of so that concentrate and oxygen can more fully mix, and had by pneumatic hammer vibrating device
Imitate automatically clear tumor operation, improve the service life of concentrate burner, and improve the product quality of Copper making, decreased
Environmental pollution.
Accompanying drawing explanation
Fig. 1 is to be the structural representation of the concentrate burner of flash smelting furnace in prior art.
Fig. 2 is the structure sectional view of the present invention.
Fig. 3 is the amplification assumption diagram (wherein brute spring only depicts the first part) of pneumatic hammer vibrating device of the present invention.
Fig. 4 is the partial enlarged drawing of Fig. 2.
Fig. 5 is the vertical view schematic diagram of Fig. 2.
Fig. 6 is technique wind rotation direction device graphics
In figure, the implication of label symbol is as follows:
10-oxygen supplying tube 11-dispersion airduct 110-independently premixes supply air line
111-pre-mixed air bundle device 112-lamellated plate 113-water cooled bottom plate 12-material feeding box
120-charging aperture premix air port 13-water-cooling system 14-technique bellows
140-technique wind rotation direction device
20-fixed plate 21-pneumatic hammer vibrating device 210-pneumatic hammer 211-brute spring
212-guide post 213-pilot sleeve 214-location-plate 215-locking nut
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the present invention is clearly and completely retouched
State.Based on the embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
Every other embodiment, broadly falls into the scope of protection of the invention.
As in figure 2 it is shown, be a kind of vibration premixed type concentrate burner, overlap including tube core and the most sheathed layout
Oxygen supplying tube 10, the dispersion airduct 11 of hollow annular, and form the taper technique bellows 14 of air compartment, described dispersion airduct 11 is side
To air intake, the outer wall of dispersion airduct 11 is arranged with the material feeding box 12 of the opening obliquely at its top, and hollow annular point
Dissipating airduct 11 top and be fixed with the fixed plate 20 of level, in fixed plate 20, the one end away from dispersion wind pipeline is fixed with by band
Dynamic dispersion airduct 11 pumps and removes the pneumatic hammer vibrating device 21 of dross.
Concrete, shown in Fig. 3, described pneumatic hammer vibrating device 21 include being installed in the pneumatic hammer 210 on the upside of fixed plate 20,
The brute spring 211 being connected with pneumatic hammer 210 on the downside of fixed plate 20 and guide post 212；Wherein, described guide post 212 is inserted in
In brute spring 211；The downside movable supporting of brute spring 211 is at the top of material feeding box 12.When pneumatic hammer 210 hammering, fixing
Plate 20 drives guide post 212 to compress brute spring 211 therewith, thus drives dispersion airduct 11 to do by fixed plate 20 and transport up and down
Dynamic.
It is furthermore preferred that the lower semisection of above-mentioned brute spring 211 is also arranged with pilot sleeve 213, the upside of pilot sleeve 213
Being provided with locking nut 215, pilot sleeve 213 is fixed on the top of material feeding box 12 by the base on the downside of it, pilot sleeve
The location-plate 214 being arranged with on 213 and disperse airduct 11 to be fixedly connected with；The design of this structure makes locking nut 215, pilot sleeve
213 are fixed together with material feeding box 12, and when pneumatic hammer vibrating device 21 works, pneumatic hammer 210 drives fixed plate 20 to compress downwards
Brute spring 211, guiding movement is done in the direction that brute spring 211 limits at pilot sleeve 213, it is ensured that fixed plate 20, dispersion
Airduct 11, location-plate 214 and brute spring 211 4 all do with pneumatic hammer 210 stablizes upper and lower reciprocating motion, not because of rock send out
Raw horizontal direction displacement.Described locking nut 215 the stroke that can regulate location-plate 214 is set.
And as it is shown in figure 5, pneumatic hammer vibrating device 21 uniform cloth on ring-type fixing plate 20 is set to 3, it is spaced
The central angle of 120 °；Pneumatic hammer 210 is vibrated more smoothly, and avoid dispersion airduct 11 vibration time rotate.
As a kind of further preferred embodiment, the neighbouring downside of described material feeding box 12 opening is provided with air port charging upward
Mouth premix air port 120.
As a kind of further preferred embodiment, described technique bellows 14 are provided with at diameter maximum and make gas the most pre-
The technique wind rotation direction device 140 of mixed fine ore.
Concrete, as shown in Figure 6, it is set to the inclined plane along taper technique bellows 14 to described technique wind rotation direction device 140
Parallel and the oblique technique wind inlet that sets, to form the whirlwind that can tangentially premix fine ore.
As a kind of further preferred embodiment, as shown in Figure 2,4, described dispersion airduct 11 is additionally provided with and leads to material feeding box
The independence of bottom premixes supply air line 110 and around this pre-mixed air bundle device 111 in pipeline week side；Described pre-mixed air bundle device
111 are provided with the tangential swing angle β rolling oblique 30 ° outwardly.
Pre-compounding process to the present invention makes following detailed description below in conjunction with the accompanying drawings.
S1, first, when the powdery concentrate of drying is directly entered material feeding box 12, the powder being placed in nozzle interior can not be equal
Point, by air intake at charging aperture premix air port 120 upwards, air port so that as far as possible dispersion during bulk concentrate powder feed；
S2, then, when concentrate powder falls to make independently to premix the pre-mixed air that the gas in supply air line 110 tangentially blows out
During bundle device 111, the tangential swing angle of 30 degree on pre-mixed air bundle device 111 is utilized to disperse further；
Further, when disperseing gas in airduct 11 to flow near one end of air outlet, through ventilative lamellated plate 112, all
Even contact with concentrate powder, improve gas-solid mixing effect；
When concentrate powder down and being disperseed to surrounding by taper technique bellows 14, by technique wind rotation direction device 140
The whirlwind of blowout, tangentially premixes fine ore, can improve the fine ore premix time of staying in nozzle, improve premix further
Effect, improves production efficiency；
S3, owing to smelting for a long time, concentrate amount the most different, a certain amount of caking phenomenon can be caused in nozzle bottom,
Pneumatic hammer 210 hammering can be passed through, thus fixed plate 20 is compressed brute spring 212 along guide post 212 therewith thus driven dispersion wind
Pipe 11 does upper and lower guiding movement, makes dispersion airduct 11 produce transient vibration, shakes by caking product.
Claims (8)
1. a vibration premixed type concentrate burner, overlaps including tube core and the oxygen supplying tube (10) of the most sheathed layout, sky
The dispersion airduct (11) of thimble shape, and form taper technique bellows (14) of air compartment, it is characterised in that: described dispersion airduct
(11) material feeding box (12) of the opening obliquely at its top, and dispersion airduct (11) top of hollow annular it are arranged with on outer wall
Being fixed with the fixed plate (20) of level, in fixed plate (20), the end away from dispersion wind pipeline is fixed with by driving dispersion wind
Pipe (11) pumps and the pneumatic hammer vibrating device (21) of dross of shaking.
A kind of vibration premixed type concentrate burner the most according to claim 1, it is characterised in that: described pneumatic hammer vibrating device
(21) pneumatic hammer (210) being installed in fixed plate (20) upside, the strength being connected in fixed plate (20) downside are included with pneumatic hammer (210)
Spring (211) and guide post (212)；The upside of described brute spring (211) is set on described guide post (212), strongly bullet
The lower end of spring (211) is supported on material feeding box (12).
A kind of vibration premixed type concentrate burner the most according to claim 2, it is characterised in that: described brute spring (211)
Lower semisection be sheathed in pilot sleeve (213), the upside of pilot sleeve (213) is provided with locking nut (215), pilot sleeve
(213) be fixed on by the base on the downside of it on top of material feeding box (12), pilot sleeve (213) be positioned at locking nut
(215) location-plate (214) being arranged with on the stack shell and between base and disperse airduct (11) to be fixedly connected with.
A kind of vibration premixed type concentrate burner the most according to claim 3, it is characterised in that: described pneumatic hammer vibrating device
(21) it is set to 3 at the upper uniform cloth of fixed plate (20).
A kind of vibration premixed type concentrate burner the most according to claim 1, it is characterised in that: described material feeding box (12) opening
Neighbouring downside be provided with air port upward charging aperture premix air port (120).
A kind of vibration premixed type concentrate burner the most according to claim 1, it is characterised in that: described technique bellows (14) exist
Diameter maximum is provided with technique wind rotation direction device (140) making gas tangentially premix fine ore.
A kind of vibration premixed type concentrate burner the most according to claim 6, it is characterised in that: described technique wind rotation direction device
(140) it is set to that the inclined plane along taper technique bellows (14) is parallel and the oblique technique wind inlet that sets, so that formed can be the most pre-
The whirlwind of mixed fine ore.
A kind of vibration premixed type concentrate burner the most according to claim 1, it is characterised in that: in described dispersion airduct (11)
It is additionally provided with and leads to independence premix supply air line (110) of material feeding box (12) bottom and around this pre-mixed air bundle in pipeline week side
Device (111)；Described pre-mixed air bundle device (111) is provided with the tangential swing angle (β) rolling oblique 30 ° outwardly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632799.5A CN106288815B (en) | 2016-08-04 | 2016-08-04 | A kind of vibration premixed type concentrate burner |
| CN201810262167.3A CN108680029B (en) | 2016-08-04 | 2016-08-04 | A kind of improved vibration premixed type concentrate burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632799.5A CN106288815B (en) | 2016-08-04 | 2016-08-04 | A kind of vibration premixed type concentrate burner |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810262167.3A Division CN108680029B (en) | 2016-08-04 | 2016-08-04 | A kind of improved vibration premixed type concentrate burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106288815A true CN106288815A (en) | 2017-01-04 |
| CN106288815B CN106288815B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610632799.5A Active CN106288815B (en) | 2016-08-04 | 2016-08-04 | A kind of vibration premixed type concentrate burner |
| CN201810262167.3A Active CN108680029B (en) | 2016-08-04 | 2016-08-04 | A kind of improved vibration premixed type concentrate burner |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810262167.3A Active CN108680029B (en) | 2016-08-04 | 2016-08-04 | A kind of improved vibration premixed type concentrate burner |
Country Status (1)
| Country | Link |
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| CN (2) | CN106288815B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489277A (en) * | 2018-03-26 | 2018-09-04 | 合肥通用机械研究院有限公司 | A kind of adjustable premixed type concentrate burner of charging |
| CN110777265A (en) * | 2019-12-02 | 2020-02-11 | 江西铜业股份有限公司 | Concentrate nozzle of cyclone diffusion type flash furnace |
| CN110804702A (en) * | 2019-12-02 | 2020-02-18 | 江西铜业股份有限公司 | Concentrate nozzle for flash smelting |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710159A (en) * | 2020-12-10 | 2021-04-27 | 广西金川有色金属有限公司 | Pure oxygen smelting device of flash furnace and using method thereof |
| CN116951987B (en) * | 2023-09-18 | 2024-01-05 | 张家港广大特材股份有限公司 | Air impact type powder dispersing device, method and reaction melting furnace applied to furnace mouth feeding pipe |
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| CN1353771A (en) * | 1999-05-31 | 2002-06-12 | 奥托库姆普联合股份公司 | Equipment for even feed of pulverous materials to concentrate burner of suspension smelting furnace |
| US20120280439A1 (en) * | 2011-05-06 | 2012-11-08 | Hatch Ltd. | Burner With Velocity Adjustment For Flash Smelter |
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| CN104388695B (en) * | 2014-11-26 | 2018-03-13 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Concentrate burner |
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| US20120280439A1 (en) * | 2011-05-06 | 2012-11-08 | Hatch Ltd. | Burner With Velocity Adjustment For Flash Smelter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489277A (en) * | 2018-03-26 | 2018-09-04 | 合肥通用机械研究院有限公司 | A kind of adjustable premixed type concentrate burner of charging |
| CN110777265A (en) * | 2019-12-02 | 2020-02-11 | 江西铜业股份有限公司 | Concentrate nozzle of cyclone diffusion type flash furnace |
| CN110804702A (en) * | 2019-12-02 | 2020-02-18 | 江西铜业股份有限公司 | Concentrate nozzle for flash smelting |
| CN110777265B (en) * | 2019-12-02 | 2024-02-20 | 江西铜业股份有限公司 | Concentrate nozzle of cyclone diffusion type flash furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108680029B (en) | 2019-08-02 |
| CN108680029A (en) | 2018-10-19 |
| CN106288815B (en) | 2018-06-29 |
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Address after: 230031 No. 888 Changjiang West Road, Shushan District, Hefei, Anhui. Patentee after: Hefei General Machinery Research Institute Co., Ltd. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Hefei, Anhui. Patentee before: Hefei Universal Machinery Inst. |