CN104694766A - Method for smelting high-grade scrap copper by rotary anode furnace - Google Patents
Method for smelting high-grade scrap copper by rotary anode furnace Download PDFInfo
- Publication number
- CN104694766A CN104694766A CN201510122318.1A CN201510122318A CN104694766A CN 104694766 A CN104694766 A CN 104694766A CN 201510122318 A CN201510122318 A CN 201510122318A CN 104694766 A CN104694766 A CN 104694766A
- Authority
- CN
- China
- Prior art keywords
- heater
- burner
- copper
- gas permeable
- rotary anode
- 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.)
- Granted
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 49
- 239000010949 copper Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000003723 Smelting Methods 0.000 title claims abstract description 20
- 239000011449 brick Substances 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 7
- 239000002893 slag Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 22
- 239000001301 oxygen Substances 0.000 claims description 22
- 229910052760 oxygen Inorganic materials 0.000 claims description 22
- 238000002485 combustion reaction Methods 0.000 claims description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000003345 natural gas Substances 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 229910000805 Pig iron Inorganic materials 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 235000009508 confectionery Nutrition 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 238000003556 assay Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000011109 contamination Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 230000002829 reductive effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for smelting a high-grade scrap copper by an anode furnace. The method for smelting the high-grade scrap copper by the anode furnace employs a rotary anode furnace facility for smelting. The rotary anode furnace comprises a furnace body, a feed port arranged in the middle portion at the front end of the furnace body, a combustor arranged on an end wall of the furnace body, ventilating bricks arranged at the lower end of the furnace body, and an oxide reduction pipe as well as a casting port arranged at the rear end of the furnace body; the furnace body is able to rotate in 360 degrees. The smelting method comprises the steps as follows: A, a feeding and melting stage; B, an oxidization slagging stage; C, a slag discharging stage; D, a reduction stage; and E, a casting stage. The invention solves the problem that, in the existing treatment technologies of the high-grade scrap copper, the raw materials are poor in adaptation, great in environmental contamination, low in automation degree, and the like.
Description
Technical field
The present invention relates to copper scap technical field of smelting, especially a kind of method utilizing Rotary Anode Furnace smelting high-grade copper scap.
Background technology
Copper scap supplied materials complexity is various, and chemical composition and the physical specification of all kinds of copper scap are different, is difficult to the smelting technology seeking a set of applicable copper scap in reality.Even if for higher-grade copper scap the material of 90% (the copper content higher than), also containing have an appointment 10% impurity, in copper scap, the process of impurity or flue gas during smelting always is the difficult problem of the art.At present, the equipment of the high copper scap of process mainly contains Ausmelt furnace, reverberatory furnace etc. both at home and abroad, and technique mainly adopts " two-phase method " or " three-stage process ".There is following shortcoming in existing copper scap treatment facility or technique: 1, the adaptability of raw material is poor, can only process the Cu94% even copper scap of more than Cu96%; 2, the fuel used and reductive agent are heavy oil or reduction coal dust substantially, and production efficiency is low, and reductive agent consumption is large; 3, need artificial intubate to carry out redox operation, because heavy oil or coal dust firing are incomplete, there is black smoke low vacancy pollution serious, operator's labour intensity is large, has larger potential safety hazard.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art, provide a kind of smelting process utilizing Rotary Anode Furnace process higher-grade copper scap, this method solve that adaptability to raw material in existing higher-grade copper scap treatment technology is poor, environmental pollution is large and the problem such as level of automation is low.
In order to solve the problem, the technical solution used in the present invention is:
A kind of method of Rotary Anode Furnace smelting high-grade copper scap, Rotary Anode Furnace equipment is adopted to smelt, described Rotary Anode Furnace comprises body of heater, be located at the charging opening of body of heater front center, be located at the burner of body of heater headwall, be located at the gas permeable brick of body of heater lower end and be located at redox pipe, the pouring gate of body of heater rear end, described body of heater can 360 ° of rotations, and described smelting process comprises the following steps:
A, charge melted phase, body of heater is gone to 0 °, fire door, adds 96% ~ 97.5% copper scap forward, 2.5% ~ 4% subsidiary material, and described subsidiary material are containing quartz, the pig iron, lime, quartzy: the pig iron: lime=2 ~ 8:0.5 ~ 1:0.5 ~ 1; Feed in raw material as feeding in raw material in batches, need time each reinforced first with burner by the heating raw materials of last batch to soft state, every batch charge amount is 40 ~ 70t, and in burner, gas discharge is 700 ~ 1000Nm
3/ h, the flow 1500 ~ 1800Nm of combustion oxygen
3/ h; For preventing copper material from blocking gas permeable brick, need before reinforced first in gas permeable brick, to pass into nitrogen, the stirring tolerance of gas permeable brick monolithic brick is 10 ~ 200 liters/min;
B, oxidative slagging phase, in described redox pipe, pass into oxygen, the flow of oxygen is less than 2600Nm
3/ h, rolls body of heater towards pouring gate and turns 49 °, carry out oxidation operation; In burner, gas discharge is 190 ~ 240Nm
3/ h, the flow 440 ~ 510Nm of combustion oxygen
3/ h; The stirring tolerance of gas permeable brick monolithic brick is 90 ~ 200 liters/min;
C, deslagging phase, when in copper liquid, impurity reaches pre-provisioning request, body of heater rolls to charging opening and turns, and utilize charging opening deslagging until slag is drained, the rotation limiting angle of body of heater is-5 °;
D, reduction period, stop to redox Guan Zhongtong oxygen, and pass into 800 ~ 1000Nm to redox pipe
3/ h Sweet natural gas, and body of heater is turned 49 ° towards pouring gate inclination, carry out restore job; In burner, gas discharge is 30 ~ 50Nm
3/ h, the flow 790 ~ 850Nm of combustion oxygen
3/ h; The stirring tolerance of gas permeable brick monolithic brick is 90 ~ 150 liters/min;
E, casting phase, after the assay was approved, body of heater is to described pouring gate side quiescent pouring copper anode plate, and casting angle is 11.5 ° ~ 55 ° for copper liquid; In burner, gas discharge is 150 ~ 200Nm
3/ h, the flow 420 ~ 480Nm of combustion oxygen
3/ h; The stirring tolerance of gas permeable brick monolithic brick is 10 ~ 90 liters/min.
In the method and technology scheme of above-mentioned a kind of Rotary Anode Furnace smelting high-grade copper scap, technical scheme can also be more specifically: the charge melted phase in described steps A, first adds the copper scap in bulk of 10 ~ 13t time reinforced.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, invention replaces traditional " two-phase method " copper scap treatment process, achieve reinforced, fusing, oxidation, deslagging, reduction etc. first to operate in " one-stage process " that complete in same stove and process Cu90% copper scap refinery practice, shorten copper scap smelting technology flow process, and enhance the adaptability of raw material, copper scap grade can be processed and be reduced to Cu90% by Cu95%;
2, invention uses fuelled with natural gas and reductive agent cleaner production, reduces environmental pollution;
3, Rotary Anode Furnace of the present invention can 360 ° of rotations, the operations such as copper scap fusing, oxidation, deslagging, reduction are completed in Central Control Room, improves metallurgical automation degree.
Accompanying drawing explanation
Fig. 1 is the structural representation of Rotary Anode Furnace of the present invention.
Fig. 2 is the longitudinal sectional view of Rotary Anode Furnace of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
As shown in Figure 1 and Figure 2, a kind of method of Rotary Anode Furnace smelting high-grade copper scap, Rotary Anode Furnace comprises body of heater 100, be located at the charging opening 300 of body of heater 100 front center, be located at the burner 200 of body of heater 100 headwall, be located at the gas permeable brick 400 of body of heater 100 lower end and be located at redox pipe 600, the pouring gate 500 of body of heater 100 rear end, body of heater can rotate in 360 °, and the smelting process of this Rotary Anode Furnace comprises the following steps:
A, charge melted phase, body of heater is gone to 0 °, fire door, adds 260t copper scap forward, 10t subsidiary material, and subsidiary material are containing quartzy 6t, pig iron 2t, lime 2t, and entering stove total amount of material is 270t.Feed in raw material as feeding in raw material in batches, need first use burner 200 by the heating raw materials of last batch to soft state when feeding in raw material, every batch charge amount is 40 ~ 70t at every turn.For protection bulk copper scap is to the damage of body of heater, the copper scap in bulk of 10 ~ 13t time reinforced, first need be added.In burner 200, gas discharge is 700 ~ 1000Nm
3/ h, the flow 1500 ~ 1800Nm of combustion oxygen
3/ h; For preventing copper material from blocking gas permeable brick, need before reinforced first in gas permeable brick 400, to pass into nitrogen, the stirring tolerance of gas permeable brick 400 monolithic brick is 10 ~ 200 liters/min;
B, oxidative slagging phase, in redox pipe 600, pass into oxygen, the flow of oxygen is less than 2600Nm
3/ h, rolls body of heater towards pouring gate 500 and turns 49 °, carry out oxidation operation; Because the oxidation of copper scap can release a large amount of heats, therefore the gas discharge in burner is adjusted to 190 ~ 240Nm
3/ h, the flow of combustion oxygen is adjusted to 440 ~ 510Nm
3/ h; The stirring tolerance of gas permeable brick 400 monolithic brick is 90 ~ 200 liters/min;
C, deslagging phase, when in copper liquid, impurity reaches pre-provisioning request, body of heater rolls to charging opening 300 and turns, and utilize charging opening 300 deslagging until slag is drained, the rotation limiting angle of body of heater is-5 °;
D, reduction period, stop logical oxygen in redox pipe 600, and pass into 800 ~ 1000Nm to redox pipe 600
3the Sweet natural gas of/h, and by body of heater 100 towards pouring gate 500 roll turn 49 °, carry out restore job; Reduce Sweet natural gas completely emerge from copper liquid owing to still having when copper liquid reduces comparatively mostly to be, therefore need the intake reducing Sweet natural gas and oxygen in burner 200, gas discharge in burner 200 is adjusted to 30 ~ 50Nm
3/ h, the flow adjustment 790 ~ 850Nm of combustion oxygen
3/ h; The stirring tolerance of gas permeable brick 400 monolithic brick is 90 ~ 150 liters/min;
E, casting phase, after the assay was approved, body of heater 100 is to pouring gate 500 side quiescent pouring copper anode plate, and casting start angle is 11.5 °, and termination point is 55 ° for copper liquid; In burner 200, gas discharge is 150 ~ 200Nm
3/ h, the flow 420 ~ 480Nm of combustion oxygen
3/ h; The stirring tolerance of gas permeable brick 400 monolithic brick is 10 ~ 90 liters/min.
Claims (2)
1. the method for a Rotary Anode Furnace smelting high-grade copper scap, described Rotary Anode Furnace comprises body of heater, be located at the charging opening of body of heater front center, be located at the burner of body of heater headwall, be located at the gas permeable brick of body of heater lower end and be located at redox pipe, the pouring gate of body of heater rear end, described body of heater can 360 ° of rotations, and it is characterized in that, described smelting process comprises the following steps:
A, charge melted phase, body of heater is gone to 0 °, fire door, adds 96% ~ 97.5% copper scap forward, 2.5% ~ 4% subsidiary material, and described subsidiary material are containing quartz, the pig iron, lime, quartzy: the pig iron: lime=2 ~ 8:0.5 ~ 1:0.5 ~ 1; Feed in raw material as feeding in raw material in batches, need time each reinforced first with burner by the heating raw materials of last batch to soft state, every batch charge amount is 40 ~ 70t, and in burner, gas discharge is 700 ~ 1000Nm
3/ h, the flow 1500 ~ 1800Nm of combustion oxygen
3/ h; First in described gas permeable brick, pass into nitrogen before reinforced, the stirring tolerance of gas permeable brick monolithic brick is 10 ~ 200 liters/min;
B, oxidative slagging phase, in described redox pipe, pass into oxygen, the flow of oxygen is less than 2600Nm
3/ h, rolls body of heater towards pouring gate and turns 49 °, carry out oxidation operation; In burner, gas discharge is 190 ~ 240Nm
3/ h, the flow 440 ~ 510Nm of combustion oxygen
3/ h; The stirring tolerance of gas permeable brick monolithic brick is 90 ~ 200 liters/min;
C, deslagging phase, when in copper liquid, impurity reaches pre-provisioning request, body of heater rolls to charging opening and turns, and utilize charging opening deslagging until slag is drained, the rotation limiting angle of body of heater is-5 °;
D, reduction period, stop to redox Guan Zhongtong oxygen, and pass into 800 ~ 1000Nm to redox pipe
3/ h Sweet natural gas, and body of heater is turned 49 ° towards pouring gate inclination, carry out restore job; In burner, gas discharge is 30 ~ 50Nm
3/ h, the flow 790 ~ 850Nm of combustion oxygen
3/ h; The stirring tolerance of gas permeable brick monolithic brick is 90 ~ 150 liters/min;
E, casting phase, after the assay was approved, body of heater is to described pouring gate side quiescent pouring copper anode plate, and casting angle is 11.5 ° ~ 55 ° for copper liquid; In burner, gas discharge is 150 ~ 200Nm
3/ h, the flow 420 ~ 480Nm of combustion oxygen
3/ h; The stirring tolerance of gas permeable brick monolithic brick is 10 ~ 90 liters/min.
2. the method for Rotary Anode Furnace smelting high-grade copper scap according to claim 1, is characterized in that: the charge melted phase in described steps A, first adds the copper scap in bulk of 10 ~ 13t time reinforced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510122318.1A CN104694766B (en) | 2015-03-19 | 2015-03-19 | A kind of method of Rotary Anode Furnace smelting high-grade copper scap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510122318.1A CN104694766B (en) | 2015-03-19 | 2015-03-19 | A kind of method of Rotary Anode Furnace smelting high-grade copper scap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104694766A true CN104694766A (en) | 2015-06-10 |
| CN104694766B CN104694766B (en) | 2017-03-29 |
Family
ID=53342310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510122318.1A Active CN104694766B (en) | 2015-03-19 | 2015-03-19 | A kind of method of Rotary Anode Furnace smelting high-grade copper scap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104694766B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962754A (en) * | 2015-06-16 | 2015-10-07 | 云南锡业股份有限公司 | Method for shortening oxidoreduction time of crude copper in anode furnace |
| CN106591950A (en) * | 2016-12-15 | 2017-04-26 | 安阳方圆研磨材料有限责任公司 | Rotary type polishing powder crystal growing furnace |
| CN110760692A (en) * | 2018-07-27 | 2020-02-07 | 浙江富冶集团有限公司 | Method for shortening reduction time of rotary anode furnace |
| CN114990349A (en) * | 2022-08-04 | 2022-09-02 | 中南大学 | Method for regenerating copper by pyrolyzing organic coating copper-based waste material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952189A (en) * | 2006-09-08 | 2007-04-25 | 云南铜业股份有限公司 | Rotary type anode furnace process technology for refining fuel coal by copper matte smelting process |
| CN101165196A (en) * | 2006-10-19 | 2008-04-23 | 中国恩菲工程技术有限公司 | Technique for continuously smelting copper by employing oxygen bottom converter and device thereof |
| CN101344357A (en) * | 2008-08-25 | 2009-01-14 | 中国瑞林工程技术有限公司 | Rotary kiln and technique for processing composition brass or block shaped raw copper |
| CN102901344A (en) * | 2012-10-18 | 2013-01-30 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Horizontal type immersion top blowing furnace used for smelting low-grade scrap copper |
| CN104087762A (en) * | 2014-07-25 | 2014-10-08 | 岑溪市东正动力科技开发有限公司 | Sealing layer for top of tilting anode furnace |
-
2015
- 2015-03-19 CN CN201510122318.1A patent/CN104694766B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952189A (en) * | 2006-09-08 | 2007-04-25 | 云南铜业股份有限公司 | Rotary type anode furnace process technology for refining fuel coal by copper matte smelting process |
| CN101165196A (en) * | 2006-10-19 | 2008-04-23 | 中国恩菲工程技术有限公司 | Technique for continuously smelting copper by employing oxygen bottom converter and device thereof |
| CN101344357A (en) * | 2008-08-25 | 2009-01-14 | 中国瑞林工程技术有限公司 | Rotary kiln and technique for processing composition brass or block shaped raw copper |
| CN102901344A (en) * | 2012-10-18 | 2013-01-30 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Horizontal type immersion top blowing furnace used for smelting low-grade scrap copper |
| CN104087762A (en) * | 2014-07-25 | 2014-10-08 | 岑溪市东正动力科技开发有限公司 | Sealing layer for top of tilting anode furnace |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962754A (en) * | 2015-06-16 | 2015-10-07 | 云南锡业股份有限公司 | Method for shortening oxidoreduction time of crude copper in anode furnace |
| CN106591950A (en) * | 2016-12-15 | 2017-04-26 | 安阳方圆研磨材料有限责任公司 | Rotary type polishing powder crystal growing furnace |
| CN106591950B (en) * | 2016-12-15 | 2019-07-02 | 安阳方圆研磨材料有限责任公司 | Rotary polishing powder crystal growing furnace |
| CN110760692A (en) * | 2018-07-27 | 2020-02-07 | 浙江富冶集团有限公司 | Method for shortening reduction time of rotary anode furnace |
| CN114990349A (en) * | 2022-08-04 | 2022-09-02 | 中南大学 | Method for regenerating copper by pyrolyzing organic coating copper-based waste material |
| CN114990349B (en) * | 2022-08-04 | 2022-11-04 | 中南大学 | Method for regenerating copper by pyrolysis of organic-coated copper-based waste material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104694766B (en) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106048108B (en) | A kind of method of titaniferous mixing slag melting and reducing recycling and modifier treatment | |
| CN105256152B (en) | The method of quick reduction melting Ti-containing slag | |
| CN104694766A (en) | Method for smelting high-grade scrap copper by rotary anode furnace | |
| CN101161831A (en) | A kind of method of calcification roasting vanadium slag | |
| CN205741172U (en) | A kind of fire essence stove copper smelting device | |
| CN200988859Y (en) | Oxygen bottom blowing melting furnace | |
| CN101762153B (en) | Rotary kiln for extracting vanadium from stone coal | |
| CN203976893U (en) | Monobasic stove copper smelting device | |
| CN112080645A (en) | Method and device for recovering zinc oxide and iron from zinc-containing soot | |
| CN209399768U (en) | Rotary distributing device in a kind of mineral hot furnace furnace | |
| CN103484688A (en) | Double-furnace double-side blowing slag forming and top blowing copper making continuous converting furnace | |
| CN201449136U (en) | Electric heating rotary kiln zinc smelting device | |
| CN105506299B (en) | A kind of low-grade reviver smelting slag fuming furnace processing system and method | |
| CN112781374A (en) | Submerged arc furnace for producing large-crystal fused magnesia | |
| CN1238528C (en) | Iron making method and melting facility for deoxidizing in rotary hearth furnace and melting and separating in flame furnace | |
| CN102944110B (en) | Smelting furnace for recovering lead from waste lead-acid storage battery | |
| CN108624739B (en) | Steelmaking equipment and smelting method for making steel from scrap steel | |
| CN204752779U (en) | Blast furnace air supply system and online stifled wind gap device thereof | |
| CN216801094U (en) | Solid waste treatment device | |
| CN212476844U (en) | Device for recovering zinc oxide and iron from zinc-containing soot | |
| CN104694767A (en) | Low-grade scrap copper smelting method | |
| CN108950236A (en) | A kind of technique of clean and effective processing lead containing sludge | |
| CN205843346U (en) | A kind of aluminum liquid rotary furnace | |
| CN207395489U (en) | A kind of reviver melting furnace slag-discharging device | |
| CN101936534A (en) | Hazardous waste burning method and device for preventing scorification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiao Kangcai Inventor before: Guan Songsheng |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170228 Address after: 226000 Haian Industrial Park, Haian Town, Jiangsu City, Henan Province, the group of twelve Applicant after: Jiangsu Huawei Copper Industry Co., Ltd. Address before: 543200 the Guangxi Zhuang Autonomous Region, Cenxi City, Canton Road, No. 96, the first floor of the first floor, No. Applicant before: East, Cenxi City ahead power Science and Technology Development Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |