CN202226899U - Device for reducing and diluting copper converting slag - Google Patents
Device for reducing and diluting copper converting slag Download PDFInfo
- Publication number
- CN202226899U CN202226899U CN2011203631021U CN201120363102U CN202226899U CN 202226899 U CN202226899 U CN 202226899U CN 2011203631021 U CN2011203631021 U CN 2011203631021U CN 201120363102 U CN201120363102 U CN 201120363102U CN 202226899 U CN202226899 U CN 202226899U
- Authority
- CN
- China
- Prior art keywords
- slag
- copper
- converter
- converting
- blowing
- 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.)
- Expired - Lifetime
Links
- 239000002893 slag Substances 0.000 title claims abstract description 41
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000010949 copper Substances 0.000 title claims abstract description 33
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 30
- 238000007865 diluting Methods 0.000 title abstract 2
- 239000007921 spray Substances 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 239000011449 brick Substances 0.000 claims abstract description 5
- 230000009467 reduction Effects 0.000 claims description 19
- 238000010790 dilution Methods 0.000 claims description 16
- 239000012895 dilution Substances 0.000 claims description 16
- 239000011819 refractory material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 7
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000009853 pyrometallurgy Methods 0.000 abstract 1
- 238000007664 blowing Methods 0.000 description 23
- 239000003795 chemical substances by application Substances 0.000 description 12
- 230000002829 reductive effect Effects 0.000 description 10
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 238000003113 dilution method Methods 0.000 description 4
- 241000722270 Regulus Species 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000010583 slow cooling Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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 utility model relates to a device and a method for reducing and diluting copper converting slag. The device is a P-S converter provided with two tuyeres which are symmetrically arranged on two sides of a furnace body and are respectively 1.5m to 2.1m away from an end wall. The tuyere arranged at the position of an outer wall inlet downwards inclines with an angle of 10 degrees to 30 degrees, and an outlet is formed on a fireproof brick inner wall. A combustion spray gun is arranged on an opening arranged on the converter end wall, and an insulation layer is additionally arranged on fireproof materials of a converter fire hole. By means of the device, slag with low copper content is performed separation of the slag and sulfonium, and melt with high copper content returns back to the converter for converting. The copper content in the slag is transformed into copper matte in a phase mode. A melting point and viscosity are improved, thereby facilitating the settlement separation of the copper matte from the slag and improving direct yield of the copper in converting process and recovery rate of copper pyrometallurgy.
Description
Technical field
The utility model includes the non-ferrous metal metallurgical equipment, specifically is a kind of copper converting slag reduction dilution equipment.
Background technology
At present copper matte regulus blows into that the used equipment of blister copper has P-S converter, flash stove, top blast stove, reverberatory furnace blows in companys, Mitsubishi connects blown converter etc., no matter uses the sort of blowing mode, in the output blister copper, also wants the output slag that blows.Blowing slag cupric higher (Cu ﹥ 2%) contains martial ethiops (Fe
3O
4) usually 20%～50%, and the copper great majority are that form chemistry with oxide compound is dissolved in the slag.The technology that the blowing slag reclaims copper has 3 kinds at present: the melting dosing method is returned in slow cooling flotation process, electric dilution method, shrend.The slow cooling floatation process requires to have enough places to build slow cooling field and the floating production line of mill; Big with the ratio of chemical dissolution like the copper in the pomace, the recovery of copper is not high, usually the slag concentrate to contain copper grade not high; Again a large amount of gangue compositions is taken back flow process; And fine size, the specific surface area of mine tailing are big, poisonous metal active high in mine tailing, and it is innoxious that to store up cost higher; The electric dilution method is that the blowing slag is dropped in the electric furnace, drops into reductive agent, vulcanizing agent more simultaneously to Fe
3O
4Reduce the vulcanization reaction of slag making reaction and copper.The reductive agent that in electric furnace, no matter adopts is solid-state, liquid state or gaseous state, and the reductive dynamic conditions is all bad, so Fe
3O
4Reduction ratio low, the furnace bottom frozen crust is thicker, worsens the working of a furnace; It is the blowing pulp water to be quenched prepare burden with copper ore concentrates, flux for the small-particle material that the melting dosing method is returned in shrend, puts into smelting furnace and reaches the purpose that reclaims copper, and the equipment that this method increases is few; Process is simple; Main drawback is to cause the fuel rate increasing degree of melting operation big, and the blowing slag of allocating into is difficult to fusing in regular furnace run, and smelting slag character worsens; Form mechanical entrainment, cause the waste cupric of smelting slag too high and subsequent disposal is difficult.
The utility model content
The purpose of the utility model provides the equipment that proposes a kind of copper converting slag reduction dilution, is the P-S transform converter is become to have reduction dilution (converter) equipment that temperature adjustment function, solid reductant spray into the molten bath function.
The air port of former P-S converter be level; The distribution of compressed-air actuated jet in the molten bath only adapts to the blowing of copper matte regulus; It no matter is blowing period 1 or blowing second cycle; The product of blowing is than the proportion of weight average greater than the question response thing, so along with the reactant come-up of carrying out of blowing gets into inlet zone, do not have blowing " dead band ".If adopt the entrance of original air port as solid reductant; Then in the dilution process of blowing slag since reactant proportion greater than the proportion of product; The blowing slag of bottom can not float and enter inlet zone, certainly exist dilution " dead band ", so the injection of reducing agent loophole will move down.In order to save improvement expenses; Continue to employ original technology airduct road facility; Adopt the invariant position of air port outer wall; Form outlet with downward-sloping 10 °～30 ° angle from the refractory brick inwall, like this reductive agent spray into molten bath formation with compress wind inlet zone near bottom of furnace body, the quiescent centre of stirring can not appear not having in the dilution process.The utility model has oxidative slagging (period 1), cross reaction to make the P-S transform converter of copper (second cycle) function is to have fuel injection is advanced burner hearth insulation and solid reductant spray into the molten bath function from the air port reduction converter traditional.
The copper converting slag reduction dilution equipment of the utility model is the P-S converter; Two air ports are arranged, and this two air ports symmetry is 1.5～2.1 meters apart from headwall respectively in the body of heater both sides; Downward-sloping 10 °～30 ° angle in the air port of outer wall entry position forms outlet from the refractory brick inwall; In the upper shed of converter headwall, burning spray gun is set.The refractory materials of converter mouth increases thermal insulation layer, reduces the thermosteresis of converter restore job.
Compared with prior art, the utlity model has following advantage:
(1) adjustment that increases burning spray gun and tuyere angle is done in converter to P-S, transform the reduction converter economically as, and improvement expenses is low; Even a newly-built reduction dilution stove investment cost is not high yet.The coal base reduction agent is sprayed into the molten bath with pressurized air from the inclined side blowing mouth, and the dynamic conditions of reaction is good, and the reaction times is short, is difficult for producing furnace accretion and stops up the air port, and operating rate is high.
(2), eliminated the great Fe of fusing point height ratio in the blowing slag through the reduction slag making
3O
4, the viscosity of slag, fusing point are reduced, be beneficial to the slag sulfonium and separate, the phase transition of copper is the Cu immiscible with slag
2S, the blowing slag that will pass through slag type adjustment put into electrothermal front bed or sedimentation electric furnace and sink sorting and leave, and can obtain cupric and be lower than 0.4% waste; And the melt cupric of reduction dilution furnace bottom is higher, can directly return converting furnace, improves the converting furnace direct yield.
(3) the dilution operation is disposable feeding intake, and disposable blowing need not frequently shake converter, and the flue gas ease is emitted few; The coal base reduction agent is compared as reductive agent with heavy oil, Sweet natural gas, LPG liquefied petroleum gas, and advantage is that cost is low, rate of reduction is fast, reduction process over-emitting black exhaust not.
Idle with the P-S converter through transforming or newly-built side-blown dilution stove dilution blowing slag, have reduced investment, improvement expenses is low, dilution is effective, operation cost is not high advantage.The utility model is handled the equipment that a kind of efficient ways is provided for the dilution of blowing slag.
Description of drawings
Fig. 1 is spray gun and a tuyere structure synoptic diagram before the transform converter.
Fig. 2 is the structural representation of newly-increased burning spray gun of the converter of the utility model and thermal insulation layer.
Fig. 3 is a fire door structural representation before and after the transform converter.
Fig. 4 is the B-B sectional view among Fig. 3.
Fig. 5 is the converter reductive agent spray gun and the fire door structural representation of the utility model.
Fig. 6 is the A-A sectional view among Fig. 5.
Among the figure, the thermal insulation layer of 1-increase; 2-burning spray gun; Fire door border behind 3-transform converter; Fire door border before 4-transform converter; 5-reductive agent spray gun inserts mouth; 6-improved reductive agent winding-up passage.
Embodiment
The equipment (P-S converter) of the copper converting slag reduction dilution of utility model keeps two air ports; This two air ports symmetry is in the body of heater both sides; Be 1.5～2.1 meters (these two entrances that the air port is exactly the coal base reduction agent) apart from headwall respectively; Downward-sloping 10 °～30 ° angle in the air port of outer wall entry position forms outlet from the refractory brick inwall; In the upper shed of converter headwall, burning spray gun (fuel oil or combustion gas or coal-fired mixed in burner with air, spray into stove interior) is set; Different nozzles and universal joint can be set according to different fuel fabrications, guarantee that nozzle rotates with body of heater; The refractory materials of converter mouth increases thermal insulation layer, reduces the thermosteresis of converter restore job.
Working process is the slag-blowing slag input reduction converter of copper matte regulus being blown into institute's output in the blister copper process, and the control furnace temperature is at 1200 ℃～1300 ℃, at coal base reduction agent and flux SiO
2Effect down main following reaction takes place:
2Fe
3O
4?+?3SiO
2?+?C=3(2?FeO·SiO
2)+CO
2
2Fe
3O
4?+?3SiO
2?+2CO=3(2?FeO·SiO
2)+2CO
2
C+H
2O=CO+H
2
CO
2+C=2CO
2Cu
2O+2FeS+SiO
2=2Cu
2S?+?2FeO·SiO
2
Because the great Fe of fusing point height ratio in the blowing slag has been eliminated in the existence of above-mentioned reaction
3O
4, the viscosity of slag, fusing point are reduced, be beneficial to the slag sulfonium and separate, the phase transition of copper is the Cu immiscible with slag
2S, the blowing slag that will pass through slag type adjustment put into electrothermal front bed or sedimentation electric furnace and sink sorting and leave, and can obtain cupric and be lower than 0.4% waste.
Claims (2)
1. a copper converting slag reduction dilution equipment is characterized in that converter is the P-S converter, and two air ports are arranged; This two air ports symmetry is in the body of heater both sides; Be 1.5～2.1 meters apart from headwall respectively, downward-sloping 10 °～30 ° angle in the air port of outer wall entry position forms outlet from the refractory brick inwall; In the upper shed of converter headwall, burning spray gun is set.
2. copper converting slag reduction dilution equipment according to claim 1 is characterized in that the refractory materials of converter mouth has thermal insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203631021U CN202226899U (en) | 2011-09-26 | 2011-09-26 | Device for reducing and diluting copper converting slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203631021U CN202226899U (en) | 2011-09-26 | 2011-09-26 | Device for reducing and diluting copper converting slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202226899U true CN202226899U (en) | 2012-05-23 |
Family
ID=46077497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203631021U Expired - Lifetime CN202226899U (en) | 2011-09-26 | 2011-09-26 | Device for reducing and diluting copper converting slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202226899U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304623A (en) * | 2011-09-26 | 2012-01-04 | 云南铜业股份有限公司 | Method and equipment for reducing impoverishment of copper converting slag |
| CN102828046A (en) * | 2012-09-07 | 2012-12-19 | 白银有色集团股份有限公司 | Method for improving converting efficiency in silver molten pool copper smelting process |
| CN109971974A (en) * | 2019-03-18 | 2019-07-05 | 铜陵有色金属集团股份有限公司 | A kind of production technology of blister refining |
| CN109971975A (en) * | 2019-03-18 | 2019-07-05 | 铜陵有色金属集团股份有限公司 | A kind of method of refining of blister copper |
| CN114150157A (en) * | 2021-12-01 | 2022-03-08 | 中冶建筑研究总院有限公司 | Method for diluting copper slag |
-
2011
- 2011-09-26 CN CN2011203631021U patent/CN202226899U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304623A (en) * | 2011-09-26 | 2012-01-04 | 云南铜业股份有限公司 | Method and equipment for reducing impoverishment of copper converting slag |
| CN102828046A (en) * | 2012-09-07 | 2012-12-19 | 白银有色集团股份有限公司 | Method for improving converting efficiency in silver molten pool copper smelting process |
| CN109971974A (en) * | 2019-03-18 | 2019-07-05 | 铜陵有色金属集团股份有限公司 | A kind of production technology of blister refining |
| CN109971975A (en) * | 2019-03-18 | 2019-07-05 | 铜陵有色金属集团股份有限公司 | A kind of method of refining of blister copper |
| CN109971974B (en) * | 2019-03-18 | 2021-07-27 | 铜陵有色金属集团股份有限公司 | Production process for refining blister copper |
| CN114150157A (en) * | 2021-12-01 | 2022-03-08 | 中冶建筑研究总院有限公司 | Method for diluting copper slag |
| CN114150157B (en) * | 2021-12-01 | 2023-10-27 | 中冶建筑研究总院有限公司 | Copper slag depletion method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
|
| CX01 | Expiry of patent term |