CN109722550A - The two step copper smelting methods and device of anode copper are prepared into from concentrate - Google Patents
The two step copper smelting methods and device of anode copper are prepared into from concentrate Download PDFInfo
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- CN109722550A CN109722550A CN201910195322.9A CN201910195322A CN109722550A CN 109722550 A CN109722550 A CN 109722550A CN 201910195322 A CN201910195322 A CN 201910195322A CN 109722550 A CN109722550 A CN 109722550A
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 250
- 239000010949 copper Substances 0.000 title claims abstract description 204
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 199
- 238000003723 Smelting Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 74
- 239000012141 concentrate Substances 0.000 title claims abstract description 36
- 239000007921 spray Substances 0.000 claims abstract description 191
- 241000722270 Regulus Species 0.000 claims abstract description 74
- 239000002893 slag Substances 0.000 claims abstract description 61
- 239000000779 smoke Substances 0.000 claims abstract description 59
- 238000002844 melting Methods 0.000 claims abstract description 34
- 230000008018 melting Effects 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 claims abstract description 26
- 238000010790 dilution Methods 0.000 claims abstract description 21
- 239000012895 dilution Substances 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 189
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 133
- 229910052760 oxygen Inorganic materials 0.000 claims description 133
- 239000001301 oxygen Substances 0.000 claims description 133
- 238000007664 blowing Methods 0.000 claims description 110
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 74
- 239000003345 natural gas Substances 0.000 claims description 38
- 239000003818 cinder Substances 0.000 claims description 32
- 238000004519 manufacturing process Methods 0.000 claims description 31
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 30
- 229910052717 sulfur Inorganic materials 0.000 claims description 29
- 230000004907 flux Effects 0.000 claims description 25
- 239000012071 phase Substances 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 24
- 239000011593 sulfur Substances 0.000 claims description 24
- 238000002156 mixing Methods 0.000 claims description 20
- 239000007791 liquid phase Substances 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 12
- 238000006477 desulfuration reaction Methods 0.000 claims description 8
- 230000023556 desulfurization Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000003546 flue gas Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000002817 coal dust Substances 0.000 claims description 4
- 239000003034 coal gas Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 239000003570 air Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 229910001369 Brass Inorganic materials 0.000 claims 2
- 239000010951 brass Substances 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000009867 copper metallurgy Methods 0.000 abstract description 13
- 238000009856 non-ferrous metallurgy Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000686 essence Substances 0.000 description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 238000012545 processing Methods 0.000 description 9
- 238000003672 processing method Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- 238000007670 refining Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 229910001361 White metal Inorganic materials 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000010969 white metal Substances 0.000 description 3
- 241000628997 Flos Species 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910017827 Cu—Fe Inorganic materials 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- HYXXTUOWDIJLPS-UHFFFAOYSA-N copper;sulfane Chemical compound S.[Cu+2] HYXXTUOWDIJLPS-UHFFFAOYSA-N 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention provides a kind of two step copper smelting methods and device that anode copper is prepared into from concentrate, belong to nonferrous metallurgy field, two step copper smelting devices include polynary furnace, the smart furnace of fire and lead sulfonium pipe, when polynary furnace operates normally, it is divided into upper layer gas phase zone, middle layer slag phase area and bottom matte area in furnace body from top to bottom, it is mainly melting reaction area below feed opening, side-blown dilution reaction zone is being equipped with below smoke outlet.The special designing of spray gun enables melting and dilution in a furnace while carrying out in polynary furnace, can effectively improve efficiency, reduce cost.Two step copper smelting methods include two reaction process in the interior and fiery smart furnace of polynary furnace, switched in real time by regulation raw material proportioning and to gas is passed through in fiery smart furnace, two step copper metallurgys can be realized, be substantially shorter copper metallurgy process flow, reduce the cost and harmful smoke loss of copper matte regulus transport.
Description
Technical field
The present invention relates to technical field of non-ferrous metallurgy, and in particular to from concentrate be prepared into anode copper two step copper smelting methods and
Device.
Background technique
Copper metallurgy technique under the prior art is all such as to be dodged from concentrate to anode plate by three sections of melting, blowing, refining completions
Fast thawing refining, top blow smelting, the side-blown melting of Rouyn-Noranda, Vanyukov smelting etc..These smelting techniques, all without breaking through nonferrous metallurgy
The limitation and deficiency in field, are mainly manifested in: production scale is big, long flow path, investment is big, system direct yield is low, causes part
The loss and waste of resource.Simultaneously because blowing, refining are separately carried out in different furnaces, the utilization rate of sulphur is low, heat waste
Lose more, SO2The loss of flue gas low latitude, operating environment are poor.Therefore need further to research and develop new equipment, overcome it is above not
Foot shortens production procedure, reduces production cost, cost of investment, realizes efficiently production.There are two types of be used for industrial company now
Continuous converting process, one is the Mitsubishi process of day wood research and development, and using top blast furnace melting, electric furnace settles copper matte regulus, and carries out dilution to slag,
Again with top blast furnace continuously by Copper Matte Converting to blister copper, three stoves are connected with two chutes, realize continual copper smelting.Another kind is
The copper metallurgy technique of the smeltery Utah, U.S.A Kennecott, using Flash Smelting Furnace melting, clinker ore dressing, water is broken, dry, ore grinding for copper comb
It is blown again with Flash Smelting Furnace into blister copper.Above two continual copper smelting technique, although solving the environmental issue of blowing operation, also all
There is shortcoming, requires further improvement raising.
In Copper making technology, what it is in most important position is the technique and relevant device of Copper making, existing copper metallurgy dress
Setting mostly is made of three smelting furnace, converting furnace and refining furnace stoves, and lot of documents reports this, and such as China is special
A kind of technique and its device using oxygen bottom blown furnace continual copper smelting disclosed in sharp document CN101165196A, but program institute
It is all more complicated with equipment and technique, and the copper grade of output is not high.Therefore it provides a kind of smelting process is shorter, technique more
Simplified Copper making method, is of great significance for copper metallurgy industry.Accordingly, Chinese patent literature CN103382528B is disclosed
Two step copper-smelting method techniques of one kind and device, which includes a bottom-blown smelting furnace and two converting furnaces, in the shape of " pin " to control；
Three equipment are rotatable horizontal cylindrical furnace, and shell is steel plate, inner lining refractory, furnace body by two idler stands in
On the basis of, one of carrying roller one end is furnished with motor, gear drive, and furnace body is arranged to along axis rotation；It is adopted between three equipment
It is connected with chute；Smelting furnace and blowing furnace bottom are equipped with spray gun.The patent has been put forward for the first time two step copper smelting devices, i.e., by molten
Furnace carries out melting step, carries out blowing and refinement step by converting furnace, can effectively shorten the Copper making time, reduces equipment
Cost.But the patent still has shortcoming, the problem of not considering for vent gas treatment and slag treatment such as, how to weaken height
How the problem of warm melt is serious to washing away for furnace body inside refractory material, reduces refractory material service life, reduce Copper in Slag
The problems such as the problem of amount, feed opening Position Design is unreasonable.
Chinese patent literature CN104988332A discloses one step copper metallurgy technique of one kind and device, including has closing furnace chamber
(11) furnace body (1), closing furnace chamber are successively arranged fining cell (111), blowing area (112) and smelting zone from bottom from the bottom to top
(113), the furnace wall of fining cell surrounding is equipped with multiple first spray guns (2), and the furnace wall of blowing area's surrounding is equipped with multiple second sprays
The furnace wall of rifle (3), smelting zone surrounding is equipped with multiple third spray guns (4), and the furnace wall and/or bottom of fining cell surrounding are additionally provided with more
A the 4th spray gun (5) being located at below the first spray gun, the furnace wall above smelting zone are equipped with slag-drip opening (12), close the top of furnace chamber
Portion is equipped with feed opening (13) and floss hole (14), and the bottom for closing furnace chamber is equipped with row copper mouth (15).The patent furnace body is shaft (tower) furnace,
And three melting, blowing, refining subregions are located in same furnace, although solving SO2Low latitude loss problem, but by three
Subregion is located in a furnace, necessarily causes furnace body excessive, and operation inconvenience, is also not easy to repair.And when shaft (tower) furnace operates
It is different with common horizontal type structure rotary furnace, it is necessary to assume that higher auxiliary charging (feeding) equipment, operation equipment etc. can also improve cost
And operation difficulty.Similarly, Chinese patent literature CN102181661A discloses a kind of copper smelting device and technique, be equally by
The problems such as three subregions are located in a furnace, equally exist inconvenient and maintenance difficult.
As it can be seen that two steps copper metallurgy technique in the prior art still has many shortcomings, and with other prior arts one
Sample, cannot be in a furnace while the problem of realizing melting and melting Slag treatment.
Summary of the invention
To solve the generally existing complex process of existing copper smelting device, can not be carried out simultaneously in a compound smelting furnace
The problems such as melting and dilution operate, the present invention provides a kind of two step copper smelting methods and device for being prepared into anode copper from concentrate,
Specific technical solution is as follows:
A kind of two step copper smelting methods being prepared into anode copper from concentrate, which comprises the steps of:
Step 1: mixture charge is added in polynary furnace by feed opening, the mixture charge include mixing copper concentrate and
Flux；
It is molten into the polynary furnace from the bottom of the polynary furnace and side respectively using Bottom Blowing Ejection Gun and side-blown spray gun
It is continuous in vivo to spray into oxygen-containing gas；
It include main smoke outlet and secondary smoke outlet in the polynary furnace, main smoke outlet is located at the top of furnace body close to polynary furnace slag discharge
The side of mouth, secondary smoke outlet are located at the top of furnace body close to the side of copper matte regulus outlet；Divide from top to bottom in the furnace body of the polynary furnace
For upper layer gas phase zone and lower layer liquid phase region, medium is melt in the lower layer liquid phase region, and the lower layer liquid phase region is divided from top to bottom
For middle layer slag phase area and bottom copper matte regulus area；Mixture charge falls into melt behind gas phase zone；Polynary furnace feed opening is located at polynary furnace
Close to the side of copper matte regulus outlet at the top of furnace body, melting reaction area is formed because Bottom Blowing Ejection Gun sprays into gas below feed opening, is being leaned on
Dilution reaction zone is formed because side-blown spray gun sprays into gas below nearly main smoke outlet；
Copper matte regulus and smelting slag are discharged respectively out of described polynary furnace；
Step 2: the copper matte regulus being discharged out of described polynary furnace is continuously added in fiery smart furnace through closed sulfonium pipe of leading, and utilizes bottom blowing
Spray gun continuously sprays into oxygen-containing gas in melt into the smart furnace of the fire from the bottom of the smart furnace of fire, and the oxygen-containing gas includes
Oxygen and reducing gas realize the oxygen in the oxygen-containing gas for switching and spraying into the smart furnace of the fire and reduction using Bottom Blowing Ejection Gun
The content of gas, the reducing gas include one or more of natural gas, coal dust, liquefied gas, coal gas, coke powder；
After above procedure by anode copper from anode copper discharge port be discharged and directly be poured anode plate, slag from fire essence furnace
Slag-drip opening discharge.
Preferably, the reducing gas is natural gas, and the flux is quartz.
Preferably, the mass ratio of S and Cu is 0.9-1.2, Cu and Fe in the mixing copper concentrate in the mixing copper concentrate
It is of poor quality account for it is described mixing copper concentrate gross mass 3%-5%.
Preferably, the flux includes quartz sand, Fe and SiO in the mixture charge2Mass ratio be 1.5-1.9.
Preferably, Fe and SiO in the mixture charge2Mass ratio be 1.7.
Preferably, Bottom Blowing Ejection Gun is axially in double arrangement along furnace body on furnace body in the polynary furnace, is located in polynary furnace
Below feed opening, spray gun and vertical direction angle are spent -30 within the scope of 30 degree, and angle is big between the spray gun axis of two rows of spray guns
In 10 degree less than 20 degree, single two adjacent spray gun spacing are within the scope of 0.5-1.5m.
Preferably, oxygen concentration is 75-80%, Bottom Blowing Ejection Gun in the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into the polynary furnace
The oxygen-containing gas of penetrating is continuously blown into the copper matte regulus layer of melt, for melting reaction occurs in polynary furnace.
Preferably, rifle position is blowed and sprayed in polynary furnace side portion close to the side of the main smoke outlet of polynary furnace, side on the inside of the polynary furnace
It blows and sprays rifle and is set as horizontal direction, it is parallel with polynary furnace body radial direction.
It preferably, include reducing gas in the oxygen-containing gas that the side-blown spray gun sprays into, side-blown spray gun sprays into oxygenous
Body is continuously blown into the slag phase layer of melt, is reacted for dilution occurs in polynary furnace, and the volume ratio of oxygen and reducing gas is
1.0-1.7, preferably 1.1-1.5, more preferable 1.2-1.4, most preferably 1.3.
It preferably, include main smoke outlet and secondary smoke outlet in the polynary furnace, main smoke outlet is located at the top of furnace body close to more
The side of first fire grate cinder notch, secondary smoke outlet are located at the top of furnace body close to the side of copper matte regulus outlet.
Preferably, copper content is 75-79wt% in the copper matte regulus being discharged in the polynary furnace.
Preferably, the copper matte regulus entrance on the smart furnace of fire is located at fire smart furnace body end center region.
Preferably, realize that the content of oxygen and reducing gas switches in oxygen-containing gas using Bottom Blowing Ejection Gun in the smart furnace of the fire
Detailed process include:
(1) it when detecting that sulfur content is greater than 0.3% in melt in fiery smart furnace, is sprayed into Bottom Blowing Ejection Gun Xiang Huojing furnace oxygen-enriched
Gas, O in oxygen rich gas2Volume content is 20.5-60%, preferably 30-50%, more preferable 35-45%, most preferably 40%.
(2) when detecting that sulfur content is less than 0.3% in melt in fiery smart furnace, Bottom Blowing Ejection Gun starts into the smart furnace of the fire
Gradually spray into reducing gas, O in the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into2Volume ratio with reducing gas is 2.8-3.2, preferably
2.9-3.1 most preferably 3.0.
(3) when detecting in fiery smart furnace oxygen content in melt >=0.6%, Bottom Blowing Ejection Gun starts to increase to the smart furnace of the fire
The reducing gas amount of interior penetrating, Bottom Blowing Ejection Gun spray into oxygen-containing gas in O2Volume ratio with reducing gas is 1.1-1.3, preferably
1.2。
When detecting in fiery smart furnace oxygen content in melt≤0.15%, stop gas supply in fire essence furnace.
Preferably, the method for sulphur or oxygen content is to pass through smoke on-line monitoring system pair in melt in the smart furnace of detection fire
The smoke components of fiery essence fire grate mouth discharge carry out detection to analyze sulphur or oxygen content in melt, or to melt in fiery smart furnace into
Row sample detection.
Preferably, Bottom Blowing Ejection Gun is axially in double arrangement along furnace body on furnace body in the smart furnace of fire, two rows of spray guns and perpendicular
Straight angular separation is in -30 degree within the scope of 30 °, and angle is greater than 10 ° less than 20 ° between two rows of spray guns, and single adjacent two
Spray gun spacing is within the scope of 0.5-1.5m, and preferably spacing is 1m.Likewise it is preferred that two rows of spray guns are set to the same of vertical direction
Side, i.e., with vertical direction angle with angle or the same angle that is negative of being positive.
Preferably, the smart fire grate cinder notch of fire is located on the smart furnace body of fire close to the side of anode copper discharge port, including production row
Cinder notch and safe slag-drip opening, production slag-drip opening are located at fire smart furnace body side, and production slag-drip opening is used for according to liquid level in fiery smart furnace
Just, the clinker of rotation discharge in real time；Safe slag-drip opening is located at upper of furnace body, when fiery smart furnace is produced to security bit, safe deslagging
Mouth is in horizontal position, and safe slag-drip opening is used to that clinker to be discharged after the fiery smart furnace desulfurization phase.
Preferably, the smart furnace body of the fire can rotate about the axis thereof, and realize that production slag-drip opening and safety are arranged by rotation
The alternation of cinder notch, and rotate and matched with gas switching.
Preferably, cold burden and flux entrance are equipped in the smart furnace of fire, the cold burden and flux entrance are set to row in fiery smart furnace
The uptake flue side wall of mouth, for cold burden and flux to be added in Xiang Huojing furnace.
Preferably, the cold burden includes one of involucrum, anode scrap copper, copper scap and solid-state copper matte regulus or a variety of.
Preferably, the anode copper discharge port is connected by anode copper chute with pouring device, and the pouring device is double
Rotating caster.
Preferably, the polynary furnace is connected to the smart furnace of two fire by the closed sulfonium pipe of leading of " Y " font, forms " product " font knot
Structure, the polynary furnace are worked continuously, the smart furnace alternately operating of two fire.
In addition, the present invention also provides a kind of two step copper smelting devices for being prepared into anode copper from concentrate, including polynary furnace, fire essence
Furnace leads sulfonium pipe and smoke on-line monitoring system, it is characterised in that:
The polynary furnace is horizontal cylinder structure, including the outlet of polynary furnace body, polynary furnace feed opening, copper matte regulus, polynary furnace
Spray gun jack, polynary furnace temperature meter socket, polynary fire grate mouth and polynary fire grate cinder notch, wherein the polynary furnace feed opening
The top of the polynary furnace body, the copper matte regulus outlet and the polynary fire grate cinder notch point are respectively positioned on the polynary fire grate mouth
Not Wei Yu the polynary furnace body both ends, the polynary furnace spray gun jack be set to polynary furnace body on, the polynary furnace temperature meter
Socket include it is multiple, be respectively arranged at the top of polynary furnace body, side and bottom；
Smoke outlet includes main smoke outlet and secondary smoke outlet in the polynary furnace, and main smoke outlet is located at the top of furnace body close to polynary
The side of fire grate cinder notch, secondary smoke outlet are located at the top of furnace body close to the side of copper matte regulus outlet；From upper in the furnace body of the polynary furnace
It is divided into upper layer gas phase zone and lower layer liquid phase region under, medium is melt in the lower layer liquid phase region, and the lower layer liquid phase region is from upper
It is divided into middle layer slag phase area and bottom copper matte regulus area under；Mixture charge falls into melt behind gas phase zone；Polynary furnace feed opening is located at
Close to the side of copper matte regulus outlet at the top of polynary furnace body, melting reaction is formed because Bottom Blowing Ejection Gun sprays into gas below feed opening
Area is forming dilution reaction zone because side-blown spray gun sprays into gas below main smoke outlet；
The smart furnace of fire is horizontal cylinder structure, including the smart furnace body of fire, copper matte regulus entrance, the smart furnace cold burden of fire and flux enter
The smart furnace spray gun jack of mouth, fire, the smart furnace temperature meter socket of fire, fiery smart fire grate mouth, the smart fire grate cinder notch of fire, anode copper discharge port, institute
It states fiery smart fire grate mouth to be located at the top of the smart furnace body of fire, the copper matte regulus entrance and the anode copper discharge port are located at the fire
Smart furnace body both ends；
The smart furnace furnace spray gun jack of fire is located at bottom of furnace body, using Bottom Blowing Ejection Gun from the bottom of the fire essence furnace to described
Oxygen-containing gas is continuously sprayed into melt in fiery essence furnace, realizes containing for oxygen and reducing gas in oxygen-containing gas using Bottom Blowing Ejection Gun
Amount switching, the reducing gas includes one or more of natural gas, coal dust, liquefied gas, coal gas, coke powder；
The polynary furnace copper matte regulus outlet is connected to the smart furnace copper matte regulus entrance of the fire by leading sulfonium pipe；
The smoke on-line monitoring system is set at fiery smart fire grate mouth.
Preferably, the reducing gas is natural gas.
Preferably, the polynary furnace spray gun jack includes polynary furnace bottom spray gun jack and polynary furnace side shooter jack,
Wherein, the polynary furnace bottom spray gun jack is located at polynary furnace body bottom, for being inserted into spray gun and into polynary furnace in copper matte regulus
Spray into oxygen-containing gas；The polynary furnace side shooter jack is located at the side on polynary furnace body close to polynary fire grate cinder notch, uses
In spraying into oxygen-containing gas in slag blanket into polynary furnace.
Preferably, Bottom Blowing Ejection Gun is axially in double arrangement along furnace body on furnace body in polynary furnace, is located at polynary furnace charge
Mouthful lower section, spray gun and vertical direction angle are in -30 degree within the scope of 30 °, and angle is greater than 10 ° less than 20 ° between two rows of spray guns,
For single two adjacent spray gun spacing within the scope of 0.5-1.5m, the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into is continuously blown into melt
In copper matte regulus layer.
Preferably, rifle position is blowed and sprayed in polynary furnace side portion close to the side of the main smoke outlet of polynary furnace, side-blown spray on the inside of polynary furnace
Rifle is set as horizontal direction, parallel with polynary furnace body radial direction, and the oxygen-containing gas that side-blown spray gun sprays into is continuously blown into melt
Slag phase layer in.
Preferably, the copper matte regulus entrance on the smart furnace of fire is located at fire smart furnace body end center region.
Preferably, Bottom Blowing Ejection Gun is axially in double arrangement, spray gun and vertical side along furnace body on furnace body in the smart furnace of the fire
To angle in -30 degree within the scope of 30 °, angle is greater than 10 ° less than 20 ° between two rows of spray guns, single two adjacent spray guns
Spacing is within the scope of 0.5-1.5m, and preferably spacing is 1m.Likewise it is preferred that two rows of spray guns are set to the same side of vertical direction,
I.e. with vertical direction angle with angle or the same angle that is negative of being positive.
Preferably, in the smart furnace of fire Bottom Blowing Ejection Gun continuously sprayed into out of melt in the bottom Xiang Huojing furnace of fiery smart furnace it is oxygenous
Body realizes the switching of oxygen, air, nitrogen and reducing gas in oxygen-containing gas using Bottom Blowing Ejection Gun.
Preferably, the smart fire grate cinder notch of fire is located on the smart furnace body of fire close to the side of anode copper discharge port, including production row
Cinder notch and safe slag-drip opening, production slag-drip opening are located at fire smart furnace body side, and production slag-drip opening is used for according to liquid level in fiery smart furnace
Just, the clinker of rotation discharge in real time；Safe slag-drip opening is located at upper of furnace body, when fiery smart furnace is produced to security bit, safe deslagging
Mouth is in horizontal position, and safe slag-drip opening is used to that clinker to be discharged after the fiery smart furnace desulfurization phase.
Preferably, the smart furnace body of the fire can rotate about the axis thereof, and realize that production slag-drip opening and safety are arranged by rotation
The alternation of cinder notch, and rotate and matched with gas switching.
Preferably, cold burden and flux entrance are equipped in the smart furnace of fire, the cold burden and flux entrance are set to row in fiery smart furnace
The uptake flue side wall of mouth, for cold burden and flux to be added in Xiang Huojing furnace.
Preferably, the cold burden includes one of involucrum, anode scrap copper, copper scap and solid-state copper matte regulus or a variety of.
Preferably, the anode copper discharge port is connected by anode copper chute with pouring device, and the pouring device is double
Rotating caster.
Preferably, it is described lead sulfonium pipe be it is closed lead sulfonium pipe, lead on sulfonium pipe configured with concurrent heating natural gas spray head.
Preferably, the polynary furnace feed opening includes three feed openings in rods arranged in horizontal line.
Preferably, the polynary furnace is connected to the smart furnace of two fire by the closed sulfonium pipe of leading of " Y " font, forms " product " font knot
Structure, the polynary furnace are worked continuously, the smart furnace alternately operating of two fire.
It compares with the prior art, beneficial effects of the present invention are as follows:
(1) Bottom Blowing Ejection Gun is set below polynary furnace charge mouth in the present invention, side-blown spray gun is arranged in floss hole close beneath,
It is arranged by two different spray guns, guarantees to form melting reaction area and dilution reaction zone in furnace.In the richness that Bottom Blowing Ejection Gun sprays into
Under carrier of oxygen effect, raw material reacts with oxygen and generates copper matte regulus and smelting slag in melting reaction area；Side-blown spray gun sprays into oxygenous
It is anti-mainly for ferric iron in smelting slag and reducibility gas containing reducibility gas, the settings of side-blown spray gun such as natural gases in body
It answers, reduces slag viscosity, the copper matte regulus sedimentation of entrainment is promoted to be detached from slag blanket to reduce sulfonium and copper content in slag.By above-mentioned improvement,
Melting reaction and dilution reaction can be carried out in polynary furnace body simultaneously, during being copper matte regulus by smart copper mine smelting, dilution
Reaction zone can simultaneously be handled smelting slag caused by melting reaction area, and smelting slag is carried out dilution to recycle wherein
Valuable metal simultaneously generates low-grade slag, and the settling zone for being detached from slag blanket is provided for copper matte regulus, is settled without stopping work, can be significantly
Improve production efficiency.
(2) dilution reaction zone has reduction fuming and sedimentation function concurrently in the present invention, for restoring to the smelting slag
Fuming and sedimentation.The structure of polynary furnace, which is improved, can use compound smelting technique, and bottom spray gun feeds oxygen-enriched air, side
Spray gun feeds the oxygen-containing air containing also Primordial Qi.In melting reaction area, material is added from top, and oxygen rich gas is sprayed from bottom of furnace body
Entering melt, makes the agitation that melt composition is violent, material is instantaneously involved in melt, is chemically reacted rapidly, and smelting intensity is big,
It can reduce sulfur content in slag.
Since side shooter is in dilution reaction zone corresponding position on furnace body, a certain proportion of go back is sprayed by side shooter
Originality gas is, it can be achieved that the fuming of lead zinc, the effects of improving slag and slowing down settling zone agitation, the copper that can will carry secretly in smelting slag
Sulfonium is settled, and Copper in Slag amount can be substantially reduced, and improves matte grade, reduces production cost.Output copper can finally be stablized
Sulfonium grade is up to the sub- white metal of 75-79%, while Copper in Slag is less than 3%, and significantly to the removal effect of the impurity such as lead zinc
It is promoted, plays the effect of fuming furnace.By the improvement to Burners Positions so that in the present invention polynary furnace have concurrently common smelting furnace and
Dilution furnace it is difunctional so that melting and dilution reaction simultaneously carry out, improve production efficiency, and reduce smelting slag smelting furnace with
The cost transported between dilution furnace, at the same can also output be no less than the matte (copper matte regulus) of traditional grade.
(3) the copper matte regulus entrance of moderate heat essence furnace of the present invention is located at furnace body headwall centre, realize charging of stopping the supple of gas or steam, supply into
Expect non-interference, no matter the smart furnace of fire is in gas supply production position or security bit of stopping the supple of gas or steam is able to achieve sub- white metal (i.e. polynary furnace institute
Producing copper matte regulus) continuous-stable enters fiery smart furnace.
(4) there are two slag-drip openings for the smart furnace design of fire, are respectively at different production operation positions.Producing slag-drip opening can root
According to height of liquid level in furnace, the clinker of rotation discharge in real time；Safe slag-drip opening is used to that clinker to be discharged after the fiery smart furnace desulfurization phase.
The design of double cinder notch can satisfy the deslagging needs for producing each stage.
(5) polynary fire grate mouth includes main smoke outlet and secondary smoke outlet, and main smoke outlet is located at close at the top of polynary furnace body
The side of slag-drip opening, between polynary furnace feed opening and polynary fire grate cinder notch；Secondary smoke outlet is located at the top of furnace body to be exported close to copper matte regulus
Side, polynary furnace feed opening and copper matte regulus outlet between, secondary smoke outlet for regulate and control polynary furnace furnace pressure and thermal balance, it is double
The design of mouth is conducive to adjust furnace temperature equilibrium in the polynary furnace furnace, improves fuming efficiency.
(6) side wall of smoke outlet can will be wrapped equipped with cold burden and flux entrance by material-transporting system on the smart furnace of fire
The intermediate materials such as shell, anode scrap copper or cold burden are sent into furnace.
(7) the sub- white metal (copper matte regulus) of polynary furnace output continuously enters in the smart furnace of the fire in security bit, is formed certain
Behind molten bath, fire essence furnace is passed through air and oxygen carries out desulfurization, except auxiliary work, when into melt, sulfur content is less than 0.3%, starts to lead to
Enter reducing gas, reduction operation, output anode copper direct pouring are carried out when reaching desulfurization copper terminal.Moderate heat essence furnace through the invention
Interior gas switching, the blowing and refining that can be realized copper mine all carry out in fiery smart furnace, to guarantee that entire copper metallurgy process only exists
It is carried out in two furnaces, realizes two step copper metallurgys.
(8) two steps copper metallurgy technique provided in the present invention and device are using polynary furnace and the smart furnace configuration of fire, directly by copper essence
Qualified anode copper is made in mine, and process is short, and melting Copper in Slag is low, and flue gas trapping rate is high, clean and environmental protection, and production cost is low.
(9) 0.9≤S/Cu≤1.2,3%≤(Cu-Fe) w%≤5% in copper concentrate are mixed in the present invention；Flux is mainly
Quartz sand, under normal circumstances, 1.5≤Fe/SiO in mixture charge2≤ 1.9, preferably 1.7.It can using this ratio batching mode
To improve the discard slag with copper of polynary furnace output.
(10) at 0-30 °, the angle of two rows of spray guns is greater than 10 ° and is less than for polynary furnace bottom spray gun jack and vertical direction angle
20 °, between 0.5-1.5m, polynary furnace bottom spray gun jack uses single two adjacent polynary furnace bottom spray gun jack spacing
This angle can guarantee that in case of emergency safety produces, and avoids melt excessive；It can also make melt stirring more evenly, prevent melt
Liquid level significantly shakes, and reduces and washes away to fire resisting material of furnace body.
Detailed description of the invention
Fig. 1 is one embodiment structural representation of the two step copper smelting devices provided by the invention that anode copper is prepared into from concentrate
Figure；
Fig. 2 is the polynary furnace structure schematic diagram of one embodiment provided by the invention；
Fig. 3 is the smart furnace structure schematic diagram of fire of one embodiment provided by the invention；
Fig. 4 is the smart furnace body transverse sectional view of fire of one embodiment provided by the invention.
Attached concrete meaning marked in the figure is as follows:
1: polynary furnace；2: fire essence furnace；3: leading sulfonium pipe；4: polynary furnace feed opening；5: copper matte regulus outlet；6: polynary furnace bottom spray gun
Jack；7: polynary furnace side shooter jack；8: polynary furnace temperature meter socket；9: main smoke outlet；10: secondary smoke outlet；11: polynary furnace
Slag-drip opening；12: pipeline；13: cinder ladle；14: copper matte regulus entrance；15: fire essence fire grate mouth；16: fire essence furnace spray gun jack；17: fire essence
Furnace temperature meter socket；18: fire essence fire grate cinder notch；19: anode copper discharge port；20: anode copper chute；21: production slag-drip opening；22:
Safe slag-drip opening.
Specific embodiment
With reference to the accompanying drawing, two step copper metallurgy techniques of anode copper and the reality of device are prepared into from concentrate to provided by the invention
Example is applied to be specifically described.
Attached drawing 1-4 is referred to first below, and two step copper smelting devices of anode copper are prepared into the slave concentrate of the embodiment of the present invention
It is specifically described.
Refering to what is shown in Fig. 1, the present invention provides a kind of two step copper smelting devices, including a polynary furnace 1 and the smart furnace 2 of two fire,
Polynary furnace 1 is connected to the smart furnace 2 of two fire by the closed sulfonium pipe 3 of leading of " Y " font, and polynary furnace 1 is designed as working continuously, two fire essences
Furnace 2 is designed as alternately operating.
Refering to what is shown in Fig. 2, polynary furnace 1 provided in this embodiment specifically includes polynary furnace body, polynary furnace feed opening 4, copper
Sulfonium outlet 5, polynary furnace spray gun jack, polynary furnace temperature meter socket 8, polynary fire grate mouth and polynary fire grate cinder notch 11, copper matte regulus
Outlet 5 and polynary fire grate cinder notch 11 are located at polynary furnace body both ends, and the waste residue that polynary fire grate cinder notch 11 is discharged is via pipeline
12 enter in cinder ladle 13.Polynary furnace spray gun jack is set on polynary furnace body, and polynary furnace temperature meter socket 8 includes multiple, difference
Set on polynary furnace body top, side and bottom.Polynary furnace feed opening 4 is located at the top of polynary furnace body close to copper matte regulus outlet 5
Side, the feed opening including three at rods arranged in horizontal line.Polynary fire grate mouth includes main smoke outlet 9 and secondary smoke outlet 10, main row
Mouth 9 is located at the side at the top of polynary furnace body close to slag-drip opening, between polynary furnace feed opening 4 and polynary fire grate cinder notch 11；It is secondary
Smoke outlet 10 is located at the top of furnace body between the side of copper matte regulus outlet 5, polynary furnace feed opening 4 and copper matte regulus outlet 5, secondary smoke outlet
For regulating and controlling polynary furnace furnace pressure and thermal balance, it is equal that the design of double mouth is conducive to adjust furnace temperature in the polynary furnace furnace
Weighing apparatus improves fuming efficiency.
Polynary furnace spray gun jack includes polynary furnace bottom spray gun jack 6 and polynary furnace side shooter jack 7 in the present embodiment,
Wherein, polynary furnace bottom spray gun jack 6 is located at polynary furnace body bottom, is axially in double arrangement along furnace body, adds positioned at polynary furnace
The lower section of material mouth 4, for being inserted into Bottom Blowing Ejection Gun and spraying into polynary furnace oxygen rich gas, spray gun and vertical direction angle in copper matte regulus
It spends -30 within the scope of 30 °, angle is greater than 10 ° less than 20 ° between two rows of spray guns, and single two adjacent spray gun spacing exist
Within the scope of 0.5-1.5m, the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into is continuously blown into the copper matte regulus layer of melt.Each jack is arranged
In a set of special refractory brick, brick where spray gun jack and the brick on periphery are connected by flange with furnace body, can be opened, bottom spray
Rifle jack and its near zone form melting reaction area.
As a preferred embodiment of the present invention, two rows of Bottom Blowing Ejection Guns of polynary furnace bottom be can be set in the same of furnace body
Side need not be symmetrical arranged according to furnace body center vertical line completely, and can be positive number with respect to the angle of furnace bottom vertical line or equal
For negative.The Bottom Blowing Ejection Gun of fiery essence furnace body bottom is it is also possible that setting.For details, reference can be made to the smart furnace spray guns of fire two rows of in attached drawing 4
The set-up mode of jack 16 (the bottom spray gun of polynary furnace is arranged see also attached drawing 4).
Polynary 7 jack of furnace side shooter is located at polynary furnace body side close to the side of main smoke outlet, side-blown for being inserted into
Spray gun simultaneously sprays into the oxygen-containing air containing reducing agent into polynary furnace in slag phase layer.Side-blown spray gun is set as horizontal direction, and polynary
Furnace body radial direction is parallel, and the oxygen-containing gas that side-blown spray gun sprays into is continuously blown into the slag phase layer of melt, polynary furnace side portion
Spray gun jack 7 and its near zone form dilution reaction zone.
To prevent sulfur dioxide gas from spreading, sulfonium pipe 3 is led to be closed and leads sulfonium pipe 3.And it leads natural configured with concurrent heating on sulfonium pipe 3
Gas nozzle.Melting, blowing, fuming step are carried out in polynary furnace body.
Refering to what is shown in Fig. 3, the smart furnace 2 of fire provided in this embodiment includes the smart furnace body of fire, copper matte regulus entrance 14, the smart furnace cold burden of fire
And the smart furnace spray gun jack 16 of flux entrance, fire, the smart furnace temperature meter socket 17 of fire, the smart fire grate mouth 15 of fire, the smart fire grate cinder notch 18 of fire,
Anode copper discharge port 19 and smoke on-line monitoring system, fire essence fire grate mouth 15 are located at the top of the smart furnace body of fire, copper matte regulus entrance
14 and anode copper discharge port 19 be located at fiery smart furnace body both ends.Copper matte regulus entrance 14 is located at fire smart furnace body end center area
Domain.Fiery essence furnace cold burden and flux entrance are set to the uptake flue side wall of fiery smart fire grate mouth 15, for being added in Xiang Huojing furnace 2
Cold burden and flux.Fiery essence furnace temperature meter socket 17 is located at the top of the smart furnace body of fire.Flue gas on-line monitoring system is additionally provided in fiery essence furnace
System is set at fiery smart fire grate mouth, carries out composition detection to discharged flue gas.Sulphur and oxygen contain in melt in concrete analysis furnace
Amount, and then convert technological operation in the smart furnace of fire.Cold burden used in the present embodiment includes involucrum, anode scrap copper, copper scap and solid-state copper matte regulus
One of or it is a variety of, fire essence furnace spray gun jack 16 is for being inserted into spray gun, according to smoke on-line monitoring system data, Xiang Huojing furnace
Oxidation or reducing gas are provided in 2.Bottom Blowing Ejection Gun is axially in double arrangement along furnace body on furnace body in fiery essence furnace, spray gun and vertical
Angular separation is in -30 degree within the scope of 30 °, and angle is greater than 10 ° less than 20 ° between two rows of spray guns, single two adjacent sprays
Rifle spacing is within the scope of 0.5-1.5m.
It is sampled analysis according to smoke on-line monitoring system data or to melt, control sprays into the type of gas and contains
Amount, specifically:
When sulfur content is greater than 0.3% in melt in fiery smart furnace 2, spray gun Xiang Huojing furnace 2 in the smart furnace 2 of control system control fire
Interior penetrating oxygen rich gas；
When sulfur content is less than 0.3% in melt in fiery smart furnace 2, spray gun starts to fire in the smart furnace 2 of control system control fire
Reducing gas is gradually sprayed into smart furnace 2；When reducing gas is natural gas, O in oxygen rich gas2Volume ratio with natural gas is
2.8-3.2；
When oxygen content in melt in fiery smart furnace 2 >=0.6%, in the smart furnace 2 of control system control fire spray gun start to increase to
The reducing gas amount sprayed into fiery essence furnace 2, when reducing gas is natural gas, the volume ratio of O2 and natural gas is in oxygen rich gas
1.1-1.3。
Refering to what is shown in Fig. 4, fire essence fire grate cinder notch 18 is located on the smart furnace body of fire close to the side of anode copper discharge port 19, packet
Production slag-drip opening 21 and safe slag-drip opening 22 are included, production slag-drip opening 21 is located at fire smart furnace body side, and production slag-drip opening 21 is used for
According to height of liquid level in fiery smart furnace, the clinker of rotation discharge in real time；Safe slag-drip opening 22 is located at upper of furnace body, when fiery smart furnace produce to
When security bit, safe slag-drip opening is in horizontal position, and safe slag-drip opening is used to that furnace to be discharged after the fiery smart furnace desulfurization phase
Slag.Fiery essence furnace body can rotate about the axis thereof, and the alternating work of production slag-drip opening 21 and safe slag-drip opening 22 is realized by rotation
Make, and rotary course is matched with gas switching.
The present embodiment Anodic copper discharge port is connected with pouring device by anode copper chute 20, and pouring device adopted by same is double
Rotating caster.
The two step copper metallurgy techniques provided by the invention for being prepared into anode copper from concentrate are carried out combined with specific embodiments below
It illustrates.It, can be simultaneously in led to gas outside to play the effects of protecting spray gun when being passed through oxygen or natural gas into furnace
Air or nitrogen are passed through as protective gas.
Embodiment 1
Step 1:
S1: mixing copper concentrate and quartz respectively grab matching, grabs and is mixed to form mixture charge after matching, pass through feed opening
It is added in polynary furnace；The mass ratio for grabbing S and Cu in the mixing copper concentrate prepared is 1.0, the quality of Cu in the mixing copper concentrate
The quality for subtracting Fe accounts for the 4% of the mixing copper concentrate gross mass, Fe and SiO in mixture charge2Mass ratio be 1.7.
S2: mixture charge forms melt after heating in furnace, sprays into oxygen concentration into polynary furnace using Bottom Blowing Ejection Gun and is
The oxygen rich gas (because of the value that oxygen concentration is bounce, will not fix always, control within the scope of 75-80%) of 75-80%,
Bottom Blowing Ejection Gun is axially in double arrangement along furnace body on furnace body, is located at below polynary furnace charge mouth, two rows of spray guns and vertical side
It is respectively 15 degree and 30 degree to angle, angle is 15 degree between two rows of spray guns, and two rows of spray guns are located at a side of furnace bottom vertical line,
Single two adjacent spray gun spacing are 1m；Since mixture charge is added from top, oxygen rich gas sprays into melt from bottom of furnace body,
Make the agitation that melt composition is violent, material is instantaneously involved in melt, chemically react rapidly, copper mine become liquid copper matte regulus and
Swim in the melting slag blanket of top；Oxygen additional amount is that oxygen 148-152Nm is added in copper concentrate per ton3O2(it is in the range
Can).
While Bottom Blowing Ejection Gun works, since side-blown spray gun is located at polynary furnace side portion close to the one of the main smoke outlet of polynary furnace
Side, side-blown spray gun are set as horizontal direction, and parallel with polynary furnace body radial direction, side-blown spray gun jet direction is just towards copper matte regulus
The smelting slag of top continuously sprays into oxygen-containing gas in melting slag blanket into polynary furnace using side-blown spray gun, occurs for melting slag blanket
Dilution reaction, it is 1.3 that side-blown spray gun, which sprays into the volume ratio of oxygen and natural gas (reducing gas) in gas,.
In reaction, polynary reaction in furnace temperature is 1180-1220 degrees Celsius, and fire essence reaction in furnace temperature is 1200-1250
Degree Celsius.Temperature adjusting, which relies primarily on, is passed through gas progress.
S3: after reaction, copper matte regulus and smelting slag is discharged respectively out of polynary furnace, matte grade is 79% (quality point
Number), Copper in Slag amount 2% (mass fraction) in smelting slag.
Step 2:
S1: the copper matte regulus being discharged out of polynary furnace is continuously added in fiery smart furnace through closed sulfonium pipe of leading, using Bottom Blowing Ejection Gun from fire
The bottom of smart furnace continuously sprays into oxygen-containing gas in the melt into the smart furnace of fire, in the set-up mode of Bottom Blowing Ejection Gun and polynary furnace
Bottom Blowing Ejection Gun is identical, realizes that the content of oxygen and reducing gas switches in oxygen-containing gas using Bottom Blowing Ejection Gun.Specific handoff procedure
Including judging in fiery smart furnace ingredient in melt using the smoke components in smoke on-line monitoring system monitoring system；It can also be direct
Melt sampling is analyzed, and then fiery smart reaction in furnace technique is adjusted, specifically:
(1) when sulfur content is greater than 0.3% in melt in fiery smart furnace, oxygen rich gas is sprayed into Bottom Blowing Ejection Gun Xiang Huojing furnace,
O in oxygen rich gas2Volume content is 40%；
(2) when sulfur content is less than 0.3% in melt in fiery smart furnace, Bottom Blowing Ejection Gun starts gradually to spray into the smart furnace of the fire
Enter natural gas, O in the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into2Volume ratio with natural gas is 3；
(3) when oxygen content in melt in fiery smart furnace >=0.6%, Bottom Blowing Ejection Gun starts to increase to be sprayed into the smart furnace of the fire
Reducing gas amount, Bottom Blowing Ejection Gun spray into oxygen-containing gas in O2Volume ratio with reducing gas is 1.2；
When detecting in fiery smart furnace oxygen content in melt≤0.15%, stop gas supply in fire essence furnace.
Gained anode copper is discharged from anode copper discharge port after the above process and direct casting anode plate, slag is from fire
Smart fire grate cinder notch discharge.Anode copper purity is 99.6%.
It summarizes: since Bottom Blowing Ejection Gun and side-blown spray gun is respectively set in different location in polynary furnace, so that the present invention provides
Technical solution in the melting of copper mine and the dilution of slag can be carried out in a furnace.And select special mixing copper concentrate ingredient
And the flux of particular amount is added, be conducive to obtain more high-grade copper matte regulus.It is carried out in fiery smart furnace according to reaction different phase
The switching of gaseous species and content only needs two steps can be completed, it is only necessary to polynary furnace so that being prepared into anode copper from copper concentrate
With two stoves of fiery smart furnace.Certainly to improve working efficiency, a polynary furnace can be correspondingly arranged to the smart furnace of two fire.
Embodiment 2
Processing method is similar to Example 1, the difference is that:
The mass ratio for grabbing S and Cu in the mixing copper concentrate prepared is 0.9, and the quality of Cu subtracts Fe in the mixing copper concentrate
Quality account for the 5% of the mixing copper concentrate gross mass, the mass ratio of Fe and SiO2 is 1.5 in mixture charge.
Two rows of Bottom Blowing Ejection Guns and vertical direction angle are respectively -10 degree and -30 degree, and angle is 20 between two rows of spray guns
Degree, two rows of spray guns are located at a side of furnace bottom vertical line, and single two adjacent spray gun spacing are 0.5m；
It is 1.7 that side-blown spray gun, which sprays into the volume ratio of oxygen and natural gas (reducing gas) in gas,.
Gas handoff procedure in fiery essence furnace are as follows: (1) when fiery smart furnace in melt sulfur content be greater than 0.3%, Bottom Blowing Ejection Gun
Oxygen rich gas, O in oxygen rich gas are sprayed into Xiang Huojing furnace2Volume content is 60%；
(2) when sulfur content is less than 0.3% in melt in fiery smart furnace, Bottom Blowing Ejection Gun starts gradually to spray into the smart furnace of the fire
Enter natural gas, O in the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into2Volume ratio with natural gas is 3.2；
(3) when oxygen content in melt in fiery smart furnace >=0.6%, Bottom Blowing Ejection Gun starts to increase to be sprayed into the smart furnace of the fire
Reducing gas amount, Bottom Blowing Ejection Gun spray into oxygen-containing gas in O2Volume ratio with reducing gas is 1.3.
Processing result: the discard slag with copper of melting output is 78% (mass fraction), and Copper in Slag amount is 3.2% in smelting slag
(mass fraction), anode copper purity are 99.3% (mass fraction).The present embodiment method therefor higher cost.
Embodiment 3
Processing method is similar to Example 1, the difference is that:
The mass ratio for grabbing S and Cu in the mixing copper concentrate prepared is 1.2, and the quality for mixing Cu in copper concentrate subtracts the matter of Fe
Amount accounts for the 3% of the mixing copper concentrate gross mass, Fe and SiO in mixture charge2Mass ratio be 1.9.
Two rows of Bottom Blowing Ejection Guns and vertical direction angle are respectively -5 degree and 5 degree, and angle is 10 degree between two rows of spray guns, and two
Row's spray gun is located at a side of furnace bottom vertical line, and single two adjacent spray gun spacing are 1.5m；
It is 1.0 that side-blown spray gun, which sprays into the volume ratio of oxygen and natural gas (reducing gas) in gas,.
Gas handoff procedure in fiery essence furnace are as follows: (1) when fiery smart furnace in melt sulfur content be greater than 0.3%, Bottom Blowing Ejection Gun
Oxygen rich gas, O in oxygen rich gas are sprayed into Xiang Huojing furnace2Volume content is 20.5%；
(2) when sulfur content is less than 0.3% in melt in fiery smart furnace, Bottom Blowing Ejection Gun starts gradually to spray into the smart furnace of the fire
Enter natural gas, O in the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into2Volume ratio with natural gas is 2.8；
(3) when oxygen content in melt in fiery smart furnace >=0.6%, Bottom Blowing Ejection Gun starts to increase to be sprayed into the smart furnace of the fire
Reducing gas amount, Bottom Blowing Ejection Gun spray into oxygen-containing gas in O2Volume ratio with reducing gas is 1.1.
Processing result: the discard slag with copper of melting output is 75% (mass fraction), and Copper in Slag amount is 2.5% in smelting slag
(mass fraction), anode copper purity are 99.1% (mass fraction).
Comparative example 1
Processing method is similar to Example 1, the difference is that: Fe and SiO in mixture charge2Mass ratio be 1.2.
Processing result: the discard slag with copper of melting output is 67%, and Copper in Slag amount is 2%.
Comparative example 2
Processing method is similar to Example 1, the difference is that: side-blown spray gun sprays into oxygen and day in gas in polynary furnace
The volume ratio of right gas (reducing gas) is 0.8.
Processing result: the discard slag with copper of melting output is 66%, and Copper in Slag amount is 2%.
Comparative example 3
Processing method is similar to Example 1, the difference is that:
Gas handoff procedure in fiery essence furnace are as follows: (1) when fiery smart furnace in melt sulfur content be greater than 0.3%, Bottom Blowing Ejection Gun
Oxygen rich gas, O in oxygen rich gas are sprayed into Xiang Huojing furnace2Volume content is 40%；
(2) when sulfur content is less than 0.3% in melt in fiery smart furnace, Bottom Blowing Ejection Gun starts gradually to spray into the smart furnace of the fire
Enter natural gas, O in the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into2Volume ratio with natural gas is 3；
Processing result: final gained anode copper purity is 90%.
Since the content for carrying out oxygen and natural gas again not according to oxygen content in melt in fiery smart furnace is adjusted, final process
Gained anode copper purity is substantially reduced than embodiment 1.
Comparative example 4
Processing method is similar to Example 1, the difference is that:
Gas handoff procedure in fiery essence furnace are as follows: (1) when fiery smart furnace in melt sulfur content be greater than 0.6%, Bottom Blowing Ejection Gun
Oxygen rich gas, O in oxygen rich gas are sprayed into Xiang Huojing furnace2Volume content is 40%；
(2) when sulfur content is less than 0.6% in melt in fiery smart furnace, Bottom Blowing Ejection Gun starts gradually to spray into the smart furnace of the fire
Enter natural gas, O in the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into2Volume ratio with natural gas is 3；
(3) when oxygen content in melt in fiery smart furnace >=0.6%, Bottom Blowing Ejection Gun starts to increase to be sprayed into the smart furnace of the fire
Reducing gas amount, Bottom Blowing Ejection Gun spray into oxygen-containing gas in O2Volume ratio with reducing gas is 1.2.
Processing result: final gained anode copper purity is 92%.
Since natural gas is passed through too early, anode copper purity obtained by final process is caused to substantially reduce than embodiment 1.
Comparative example 5
Processing method is similar to Example 1, the difference is that:
Gas handoff procedure in fiery essence furnace are as follows: (1) when fiery smart furnace in melt sulfur content be greater than 0.2%, Bottom Blowing Ejection Gun
Oxygen rich gas, O in oxygen rich gas are sprayed into Xiang Huojing furnace2Volume content is 40%；
(2) when sulfur content is less than 0.2% in melt in fiery smart furnace, Bottom Blowing Ejection Gun starts gradually to spray into the smart furnace of the fire
Enter natural gas, O in the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into2Volume ratio with natural gas is 3；
(3) when oxygen content in melt in fiery smart furnace >=0.6%, Bottom Blowing Ejection Gun starts to increase to be sprayed into the smart furnace of the fire
Reducing gas amount, Bottom Blowing Ejection Gun spray into oxygen-containing gas in O2Volume ratio with reducing gas is 1.2.
Processing result: final gained anode copper purity is 91%.
Since natural gas is passed through too late, anode copper purity obtained by final process is caused to substantially reduce than embodiment 1.
Comparative example 6
Processing method is similar to Example 1, the difference is that:
Gas handoff procedure in fiery essence furnace are as follows: (1) when fiery smart furnace in melt sulfur content be greater than 0.3%, Bottom Blowing Ejection Gun
Oxygen rich gas, O in oxygen rich gas are sprayed into Xiang Huojing furnace2Volume content is 40%；
(2) when sulfur content is less than 0.3% in melt in fiery smart furnace, Bottom Blowing Ejection Gun starts gradually to spray into the smart furnace of the fire
Enter natural gas, O in the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into2Volume ratio with natural gas is 3；
(3) when oxygen content in melt in fiery smart furnace >=1%, Bottom Blowing Ejection Gun starts to increase to be sprayed into the smart furnace of the fire
Reducing gas amount, Bottom Blowing Ejection Gun spray into oxygen-containing gas in O2Volume ratio with reducing gas is 1.2.
Processing result: final gained anode copper purity is 94%.
Comparative example 7
Processing method is similar to Example 1, the difference is that:
Gas handoff procedure in fiery essence furnace are as follows: (1) when fiery smart furnace in melt sulfur content be greater than 0.3%, Bottom Blowing Ejection Gun
Oxygen rich gas, O in oxygen rich gas are sprayed into Xiang Huojing furnace2Volume content is 40%；
(2) when sulfur content is less than 0.3% in melt in fiery smart furnace, Bottom Blowing Ejection Gun starts gradually to spray into the smart furnace of the fire
Enter natural gas, O in the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into2Volume ratio with natural gas is 3；
(3) when oxygen content in melt in fiery smart furnace >=0.3%, Bottom Blowing Ejection Gun starts to increase to be sprayed into the smart furnace of the fire
Reducing gas amount, Bottom Blowing Ejection Gun spray into oxygen-containing gas in O2Volume ratio with reducing gas is 1.2.
Processing result: final gained anode copper purity is 92%.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., is all included in the scope of protection of the present invention.
Claims (36)
1. a kind of two step copper smelting methods for being prepared into anode copper from concentrate, which comprises the steps of:
Step 1: mixture charge is added in polynary furnace by feed opening, and the mixture charge includes mixing copper concentrate and flux；
Using in Bottom Blowing Ejection Gun and the side-blown spray gun respectively melt from the bottom and side of the polynary furnace into the polynary furnace
It is continuous to spray into oxygen-containing gas；
It include main smoke outlet and secondary smoke outlet in the polynary furnace, main smoke outlet is located at the top of furnace body close to polynary fire grate cinder notch
Side, secondary smoke outlet are located at the top of furnace body close to the side of copper matte regulus outlet；It is divided into from top to bottom in the furnace body of the polynary furnace
Layer gas phase zone and lower layer liquid phase region, medium is melt in the lower layer liquid phase region, during the lower layer liquid phase region is divided into from top to bottom
Floor slag phase area and bottom copper matte regulus area；Mixture charge falls into melt behind gas phase zone；Polynary furnace feed opening is located at polynary furnace body
Top forms melting reaction area because Bottom Blowing Ejection Gun sprays into gas below feed opening, close to main close to the side that copper matte regulus exports
Dilution reaction zone is formed because side-blown spray gun sprays into gas below smoke outlet；
Copper matte regulus and smelting slag are discharged respectively out of described polynary furnace；
Step 2: the copper matte regulus being discharged out of described polynary furnace is continuously added in fiery smart furnace through closed sulfonium pipe of leading, and utilizes Bottom Blowing Ejection Gun
Oxygen-containing gas is continuously sprayed into the melt into the smart furnace of the fire from the bottom of the smart furnace of the fire, the oxygen-containing gas includes oxygen
And reducing gas, the oxygen and reducing gas in the oxygen-containing gas for switching and spraying into the smart furnace of the fire are realized using Bottom Blowing Ejection Gun
Content, the reducing gas includes one or more of natural gas, coal dust, liquefied gas, coal gas, coke powder；
After above procedure by anode copper from anode copper discharge port be discharged and directly be poured anode plate, slag from fire essence furnace slag discharge
Mouth discharge.
2. two steps copper smelting method according to claim 1, which is characterized in that the reducing gas is natural gas, described molten
Agent is quartz.
3. two steps copper smelting method according to claim 1, which is characterized in that the quality of S and Cu in the mixing copper concentrate
Than for 0.9-1.2, Cu accounts for the 3%-5% for mixing copper concentrate gross mass with the of poor quality of Fe in the mixing copper concentrate.
4. two steps copper smelting method according to claim 1, which is characterized in that the flux includes quartz sand, the mixing
Fe and SiO in furnace charge2Mass ratio be 1.5-1.9.
5. two steps copper smelting method according to claim 4, which is characterized in that Fe and SiO in the mixture charge2Quality
Than being 1.7.
6. two steps copper smelting method according to claim 1, which is characterized in that Bottom Blowing Ejection Gun is on furnace body in the polynary furnace
Axially it is in double arrangement along furnace body, is located at below polynary furnace charge mouth, spray gun and vertical direction angle is in -30 degree to 30 degree of models
In enclosing, angle is greater than 10 degree less than 20 degree between the spray gun axis of two rows of spray guns, and single two adjacent spray gun spacing are in 0.5-
Within the scope of 1.5m.
7. two steps copper smelting method according to claim 1, which is characterized in that Bottom Blowing Ejection Gun sprayed into the polynary furnace contains
Oxygen concentration is 75-80% in carrier of oxygen, and the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into is continuously blown into the copper matte regulus layer of melt, for more
Melting reaction occurs in first furnace.
8. two steps copper smelting method according to claim 1, which is characterized in that blow and spray rifle position in polynary on the inside of the polynary furnace
Furnace side portion is set as horizontal direction close to the side of the main smoke outlet of polynary furnace, side-blown spray gun, parallel with polynary furnace body radial direction.
9. two steps copper smelting method according to claim 1, which is characterized in that in the oxygen-containing gas that the side-blown spray gun sprays into
Including reducing gas, the oxygen-containing gas that side-blown spray gun sprays into is continuously blown into the slag phase layer of melt, poor for occurring in polynary furnace
Change and react, the volume ratio of oxygen and reducing gas is 1.0-1.7.
10. two steps copper smelting method according to claim 1, which is characterized in that copper in the copper matte regulus being discharged in the polynary furnace
Content is 75-79wt%.
11. two steps copper smelting method according to claim 1, which is characterized in that the copper matte regulus entrance on fire essence furnace is located at described
Fiery essence furnace body end center region.
12. two steps copper smelting method according to claim 1, which is characterized in that real using Bottom Blowing Ejection Gun in the smart furnace of fire
The detailed process of the content of oxygen and reducing gas switching includes: in existing oxygen-containing gas
(1) when detecting that sulfur content is greater than 0.3% in melt in fiery smart furnace, oxygen rich air is sprayed into Bottom Blowing Ejection Gun Xiang Huojing furnace
Body, O in oxygen rich gas2Volume content is 20.5-60%；
(2) when detecting that sulfur content is less than 0.3% in melt in fiery smart furnace, Bottom Blowing Ejection Gun starts into the smart furnace of the fire gradually
Spray into reducing gas, O in the oxygen-containing gas that Bottom Blowing Ejection Gun sprays into2Volume ratio with reducing gas is 2.8-3.2；
(3) when detecting in fiery smart furnace oxygen content in melt >=0.6%, Bottom Blowing Ejection Gun starts to increase to be sprayed into the smart furnace of the fire
The reducing gas amount entered, Bottom Blowing Ejection Gun spray into oxygen-containing gas in O2Volume ratio with reducing gas is 1.1-1.3.
13. two steps copper smelting method according to claim 12, which is characterized in that in the smart furnace of detection fire in melt sulphur or
The method of oxygen content detect dividing for the smoke components that fiery smart fire grate mouth is discharged by smoke on-line monitoring system
Sulphur or oxygen content in melt are analysed, or detection is sampled to melt in fiery smart furnace.
14. two steps copper smelting method according to claim 1, which is characterized in that Bottom Blowing Ejection Gun is in furnace body in the smart furnace of fire
On be axially in double arrangement along furnace body, two rows of spray guns and vertical direction angle in -30 degree within the scope of 30 °, two rows of spray guns it
Between angle be greater than 10 ° less than 20 °, single two adjacent spray gun spacing are within the scope of 0.5-1.5m.
15. two steps copper smelting method according to claim 1, which is characterized in that fire essence fire grate cinder notch is located at the smart furnace body of fire
The upper side close to anode copper discharge port, including production slag-drip opening and safe slag-drip opening, production slag-drip opening are located at the smart furnace body of fire
Side, production slag-drip opening are used for according to height of liquid level in fiery smart furnace, the clinker of rotation discharge in real time；Safe slag-drip opening is located on furnace body
Portion, when fiery smart furnace is produced to security bit, safe slag-drip opening is in horizontal position, and safe slag-drip opening is used in fiery smart furnace desulfurization
After phase, clinker is discharged.
16. two steps copper smelting method according to claim 15, which is characterized in that the smart furnace body of fire can be around its axis
The alternation of production slag-drip opening and safe slag-drip opening is realized in rotation by rotation, and is rotated and matched with gas switching.
17. two steps copper smelting method according to claim 1, which is characterized in that it is equipped with cold burden and flux entrance in fire essence furnace,
The cold burden and flux entrance are set to the uptake flue side wall of smoke outlet in fiery smart furnace, for be added in Xiang Huojing furnace cold burden and
Flux.
18. two steps copper smelting method according to claim 17, which is characterized in that the cold burden includes involucrum, anode scrap copper, gives up
One of composition brass and solid-state copper matte regulus are a variety of.
19. two steps copper smelting method according to claim 1, which is characterized in that the anode copper discharge port passes through anode copper
Chute is connected with pouring device, and the pouring device is double-arc spline casting machine.
20. two steps copper smelting method according to claim 1, which is characterized in that the polynary furnace passes through with the smart furnace of two fire
" Y " font is closed to lead the connection of sulfonium pipe, forms " product " font structure, and the polynary furnace is worked continuously, the smart furnace alternating of two fire
Operation.
21. a kind of two step copper smelting devices for being prepared into anode copper from concentrate, including the smart furnace of polynary furnace, fire, lead sulfonium pipe and flue gas exists
Line monitoring system, it is characterised in that:
The polynary furnace is horizontal cylinder structure, including the outlet of polynary furnace body, polynary furnace feed opening, copper matte regulus, polynary furnace spray gun
Jack, polynary furnace temperature meter socket, polynary fire grate mouth and polynary fire grate cinder notch, wherein the polynary furnace feed opening and institute
The top that polynary fire grate mouth is respectively positioned on the polynary furnace body is stated, the copper matte regulus outlet and the polynary fire grate cinder notch distinguish position
In the polynary furnace body both ends, the polynary furnace spray gun jack is set on polynary furnace body, the polynary furnace temperature meter socket
Including multiple, it is respectively arranged at the top of polynary furnace body, side and bottom；
It include main smoke outlet and secondary smoke outlet in the polynary furnace, main smoke outlet is located at the top of furnace body close to polynary fire grate cinder notch
Side, secondary smoke outlet are located at the top of furnace body close to the side of copper matte regulus outlet；It is divided into from top to bottom in the furnace body of the polynary furnace
Layer gas phase zone and lower layer liquid phase region, medium is melt in the lower layer liquid phase region, during the lower layer liquid phase region is divided into from top to bottom
Floor slag phase area and bottom copper matte regulus area；Mixture charge falls into melt behind gas phase zone；Polynary furnace feed opening is located at polynary furnace body
Top forms melting reaction area because Bottom Blowing Ejection Gun sprays into gas below feed opening, close to main close to the side that copper matte regulus exports
Dilution reaction zone is formed because side-blown spray gun sprays into gas below smoke outlet；
The smart furnace of fire is horizontal cylinder structure, including the smart furnace body of fire, copper matte regulus entrance, the smart furnace cold burden of fire and flux entrance, fire
The smart furnace temperature meter socket of smart furnace spray gun jack, fire, the smart fire grate mouth of fire, the smart fire grate cinder notch of fire, anode copper discharge port, the fire essence
Fire grate mouth is located at the top of the smart furnace body of fire, and the copper matte regulus entrance and the anode copper discharge port are located at the smart furnace furnace of the fire
Body both ends；
The fiery smart furnace furnace spray gun jack is located at bottom of furnace body, smart from the bottom of the smart furnace of the fire to the fire using Bottom Blowing Ejection Gun
Oxygen-containing gas is continuously sprayed into melt in furnace, realizes that the content of oxygen and reducing gas is cut in oxygen-containing gas using Bottom Blowing Ejection Gun
It changes, the reducing gas includes one or more of natural gas, coal dust, liquefied gas, coal gas, coke powder；
The polynary furnace copper matte regulus outlet is connected to the smart furnace copper matte regulus entrance of the fire by leading sulfonium pipe；
The smoke on-line monitoring system is set at fiery smart fire grate mouth.
22. two steps copper smelting device according to claim 21, which is characterized in that the reducing gas is natural gas.
23. two steps copper smelting device according to claim 21, which is characterized in that the polynary furnace spray gun jack includes polynary
Furnace bottom spray gun jack and polynary furnace side shooter jack, wherein the polynary furnace bottom spray gun jack is located at polynary furnace body
Bottom, for being inserted into spray gun and spraying into oxygen-containing gas in copper matte regulus into polynary furnace；The polynary furnace side shooter jack is located at more
Close to the side of polynary fire grate cinder notch on first furnace body, for spraying into oxygen-containing gas in slag blanket into polynary furnace.
24. two steps copper smelting device according to claim 21, which is characterized in that Bottom Blowing Ejection Gun edge on furnace body in polynary furnace
Furnace body is axially in double arrangement, is located at below polynary furnace charge mouth, and spray gun and vertical direction angle are in -30 degree to 30 ° of ranges
Interior, angle is greater than 10 ° less than 20 ° between two rows of spray guns, and single two adjacent spray gun spacing are within the scope of 0.5-1.5m, bottom
The oxygen-containing gas for blowing and spraying rifle penetrating is continuously blown into the copper matte regulus layer of melt.
25. two steps copper smelting device according to claim 24, which is characterized in that blow and spray rifle position in polynary furnace on the inside of polynary furnace
Side is set as horizontal direction close to the side of the main smoke outlet of polynary furnace, side-blown spray gun, parallel with polynary furnace body radial direction, side
The oxygen-containing gas for blowing and spraying rifle penetrating is continuously blown into the slag phase layer of melt.
26. two steps copper smelting device according to claim 21, which is characterized in that the copper matte regulus entrance on fire essence furnace is located at described
Fiery essence furnace body end center region.
27. two steps copper smelting device according to claim 21, which is characterized in that Bottom Blowing Ejection Gun is in furnace body in the smart furnace of fire
On be axially in double arrangement along furnace body, spray gun and vertical direction angle, within the scope of 30 °, are pressed from both sides in -30 degree between two rows of spray guns
Angle is greater than 10 ° less than 20 °, and single two adjacent spray gun spacing are within the scope of 0.5-1.5m.
28. two steps copper smelting device according to claim 21, which is characterized in that Bottom Blowing Ejection Gun is from fiery smart furnace in fire essence furnace
Oxygen-containing gas is continuously sprayed into melt in the Xiang Huojing furnace of bottom, realizes oxygen, air, nitrogen in oxygen-containing gas using Bottom Blowing Ejection Gun
The switching of gas and reducing gas.
29. two steps copper smelting device according to claim 21, which is characterized in that fire essence fire grate cinder notch is located at the smart furnace body of fire
The upper side close to anode copper discharge port, including production slag-drip opening and safe slag-drip opening, production slag-drip opening are located at the smart furnace body of fire
Side, production slag-drip opening are used for according to height of liquid level in fiery smart furnace, the clinker of rotation discharge in real time；Safe slag-drip opening is located on furnace body
Portion, when fiery smart furnace is produced to security bit, safe slag-drip opening is in horizontal position, and safe slag-drip opening is used in fiery smart furnace desulfurization
After phase, clinker is discharged.
30. two steps copper smelting device according to claim 21, which is characterized in that the smart furnace body of fire can be around its axis
The alternation of production slag-drip opening and safe slag-drip opening is realized in rotation by rotation, and is rotated and matched with gas switching.
31. two steps copper smelting device according to claim 21, which is characterized in that be equipped with cold burden in fire essence furnace and flux enters
Mouth, the cold burden and flux entrance are set to the uptake flue side wall of smoke outlet in fiery smart furnace, cold for addition in Xiang Huojing furnace
Material and flux.
32. two steps copper smelting device according to claim 21, which is characterized in that the cold burden includes involucrum, anode scrap copper, gives up
One of composition brass and solid-state copper matte regulus are a variety of.
33. two steps copper smelting device according to claim 21, which is characterized in that the anode copper discharge port passes through anode copper
Chute is connected with pouring device, and the pouring device is double-arc spline casting machine.
34. two steps copper smelting device according to claim 21, which is characterized in that it is described lead sulfonium pipe be it is closed lead sulfonium pipe, lead
Concurrent heating natural gas spray head is configured on sulfonium pipe.
35. two steps copper smelting device according to claim 21, which is characterized in that the polynary furnace feed opening includes three and is in
The feed opening of rods arranged in horizontal line.
36. two steps copper smelting device according to claim 21, which is characterized in that the polynary furnace passes through with the smart furnace of two fire
" Y " font is closed to lead the connection of sulfonium pipe, forms " product " font structure, and the polynary furnace is worked continuously, the smart furnace alternating of two fire
Operation.
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| CN111500874A (en) * | 2020-05-08 | 2020-08-07 | 中南大学 | Directional lead-zinc distribution regulating method in copper smelting process |
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