CN102000829A - Method for smelting metal zinc powder from zinc calcine by using electric furnace - Google Patents
Method for smelting metal zinc powder from zinc calcine by using electric furnace Download PDFInfo
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- CN102000829A CN102000829A CN 201010517816 CN201010517816A CN102000829A CN 102000829 A CN102000829 A CN 102000829A CN 201010517816 CN201010517816 CN 201010517816 CN 201010517816 A CN201010517816 A CN 201010517816A CN 102000829 A CN102000829 A CN 102000829A
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- Prior art keywords
- zinc
- electric furnace
- furnace
- calcine
- temperature
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 121
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 107
- 239000011701 zinc Substances 0.000 title claims abstract description 107
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 28
- 239000002184 metal Substances 0.000 title claims abstract description 28
- 238000003723 Smelting Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000011084 recovery Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 229910052793 cadmium Inorganic materials 0.000 claims description 9
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 9
- 239000003517 fume Substances 0.000 claims description 6
- CEKJAYFBQARQNG-UHFFFAOYSA-N cadmium zinc Chemical compound [Zn].[Cd] CEKJAYFBQARQNG-UHFFFAOYSA-N 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000009461 vacuum packaging Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000002994 raw material Substances 0.000 abstract description 8
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 4
- 238000007670 refining Methods 0.000 abstract description 3
- 230000008016 vaporization Effects 0.000 abstract 2
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000005272 metallurgy Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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Abstract
The invention relates to a non-ferrous metal smelting process, in particular to a zinc powder smelting process belonging to the technical field of non-ferrous metal smelting. The process comprises the following steps of: putting zinc calcine containing 50-55wt% of zinc into an electric furnace; cooling zinc steam into zinc liquid at the furnace temperature of 1,300+/-100 DEG C and the negative pressure of 7,000Pa-8,000Pa; making the zinc liquid enter into a lead tower for rectifying at the rectification temperature of 1,100-1,300 DEG C under the condition of keeping the temperature at 580-650 DEG C; then cooling into the zinc liquid again and making the zinc liquid enter into a rectification tower for rectifying at the temperature of 1,000-1,300 DEG C; cooling the zinc liquid and then putting the zinc liquid into a vaporizing furnace at the temperature of 580-650 DEG C; and vaporizing at the temperature of 1,200-1,300 DEG C, condensing the zinc steam and then grading and vacuumizing. The invention integrates the three independent production processes of electric furnace smelting, zinc refining and metal zinc powder production and has the characteristics of high metal direct recovery rate, wide raw material resource, low energy consumption, high product quality and low production cost.
Description
Technical field
The present invention relates to the smelting process for production of the production Technology of non-ferrous metal metallurgy, particularly metal zinc, belong to the non-ferrous metal metallurgy technical field.
Background technology
Traditional electric furnace smelting zinc powder, the zinc powder of being produced, impurity content height, zinc oxygenation efficiency height, effective zinc are 90～92%, only can supply with the zinc hydrometallurgy and do the electrolyte purification use.And traditional production method of the metal zinc of the more wide method of range of application is as raw material with high-quality zinc ingot metal, produce with blowing process or atmospheric distillation, its shortcoming is to use high-grade zinc ingot metal as raw material, and the zinc powder particle size that obtains is thicker, contain the oxygen height, active relatively poor.
Summary of the invention
The objective of the invention is at existing electric furnace zinc smelting powder, can not output is high-quality (be used for coating, precision instrument processing, industries such as pharmaceutical preparation) metal zinc and produce high-quality zinc powder and will use the limitation of high-quality zinc ingot metal as raw material, this method current collection stove is smelted, zinc refining, metal zinc is produced three independent production processes in one, can directly adopt zinc calcine is raw material, and it is low, active strong that the metal zinc of output contains oxygen, has metal direct yield height, raw material sources are extensive, energy resource consumption is low, superior product quality, the characteristics that production cost is low.
Realize that the technical scheme that the object of the invention adopted is: drop into the zinc calcine that contains zinc 50～55wt% in the electric furnace, 1300 ± 100 ℃ of furnace temperature, zinc fume is cooled to zinc liquid under the negative pressure of 7000pa～8000pa; Temperature remains on 580～650 ℃, enters plumbous tower rectifying, 1100～1300 ℃ of rectification temperatures; Be cooled to zinc liquid again and enter the rectifying of cadmium tower, 1000～1300 ℃ of rectification temperatures, cooling back zinc liquid is put into vapourizing furnace at 580～650 ℃; In 1200～1300 ℃ of evaporations down, classification behind the zinc vapor condensing, vacuum packaging.
The zinc fume of electric furnace output is to be cooled to zinc liquid through the negative pressure condenser, sends into 580～650 ℃ holding furnace insulation again; The zinc fume of cadmium tower rectifying output is cooled to zinc liquid through condenser, sends into 580～650 ℃ smart zinc holding furnace insulation again; Vapourizing furnace logical nitrogen before putting into zinc liquid is driven furnace air away.
The zinc content that obtains in plumbous tower rectifying and cadmium tower distillation process is recycled at 92%～96% B zinc, hard zinc, lead bullion, high cadmium zinc, returned smart zinc holding furnace recovery greater than 200 purpose coarse grain zinc powders in the granularity that classification obtains.
What the electric furnace smelting zinc calcine adopted is the 1250KVA electric furnace.
Beneficial effect of the present invention: produce zinc powder technology relatively with traditional electric furnace zinc powder and smart zinc, this process using is raw material with the zinc calcine, through electric furnace smelting, rectifying furnace is purified, the vapourizing furnace volatilization, and output contains low, the active strong metal zinc of oxygen, this production technology current collection stove is smelted, zinc refining, metal zinc are produced three independent production processes in one, have metal direct yield height, raw material sources are extensive, energy resource consumption is low, superior product quality, the characteristics that production cost is low.If rectifying zinc liquid without vapourizing furnace can produce evaporate under the smart zinc ， Zai Duo gas shield metal zinc, if logical chlorine can get high purity oxygen than zinc, a production line can get three kinds of products, has the characteristics of product diversification.This technology zinc direct yield 80%, comprehensive recovery 95%, zinc powder contain zinc greater than 99%, in ZnO content≤0.5%.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
Embodiment 1: throw zinc calcine 14t in the 1250KVA electric furnace continuously, calcining contains zinc 50%, continued operation 24 hours, 1300 ℃ of furnace temperatures, electroslag contains zinc 3.0%, 1200～1300 ℃ of plumbous tower rectification temperatures, 1200 ℃ of zinc vapourizing furnace temperature, the rectifying of cadmium tower, 1000～1300 ℃ of rectification temperatures, cooling back zinc liquid is put into vapourizing furnace at 580～650 ℃, 1200～1300 ℃ of evaporations down, gets resultant metal zinc powder 5.54t, B zinc 1. 4t, hard zinc 75kg, lead bullion 9.5kg, high cadmium zinc 18.8kg, metal zinc contains zinc 99.30%, ZnO content 0.5%, zinc direct yield 79.14%, comprehensive recovery 95%.
Embodiment 2: drop into continuously zinc a word used in place name sand 28t in the 1250KVA electric furnace, a word used in place name sand contains zinc 55%, the continued operation 48h that feeds intake, 1250～1300 ℃ of furnace temperatures, electroslag contains zinc 3.2%, 1200～1300 ℃ of plumbous tower rectification temperatures, 1150～1250 ℃ of cadmium tower rectification temperatures, 1200 ℃ of zinc vapourizing furnace temperature get product 12.10t, B zinc 2.98t, hard zinc 171kg, lead bullion 22kg, high cadmium zinc 33.08kg, metal zinc contain zinc 99.38%, ZnO content 0.5%, zinc direct yield 80%, comprehensive recovery 95.4%.
Embodiment 3: drop into continuously zinc a word used in place name sand 28t in the 1250KVA electric furnace, a word used in place name sand contains zinc 52%, the continued operation 48h that feeds intake, 1300～1350 ℃ of furnace temperatures, electroslag contains zinc 2.9%, 1200～1300 ℃ of plumbous tower rectification temperatures, 1150～1250 ℃ of cadmium tower rectification temperatures, 1200 ℃ of zinc vapourizing furnace temperature get product 11.78t, B zinc 2.35t, hard zinc 170kg, lead bullion 22kg, high cadmium zinc 33.28kg, gold direct yield 80.38%, comprehensive recovery 96.42%.
Claims (4)
1. method of producing metal zinc with the zinc calcine electric furnace smelting is characterized in that: drop into the zinc calcine that contains zinc 50～55wt% in the electric furnace, and 1300 ± 100 ℃ of furnace temperature, zinc fume is cooled to zinc liquid under the negative pressure of 7000pa～8000pa; Temperature remains on 580～650 ℃, enters plumbous tower rectifying, 1100～1300 ℃ of rectification temperatures; Be cooled to zinc liquid again and enter the rectifying of cadmium tower, 1000～1300 ℃ of rectification temperatures, cooling back zinc liquid is put into vapourizing furnace at 580～650 ℃; In 1200～1300 ℃ of evaporations down, classification behind the zinc vapor condensing, vacuum packaging.
2. by the described method of producing metal zinc with the zinc calcine electric furnace smelting of claim 1, it is characterized in that: the zinc fume of electric furnace output is to be cooled to zinc liquid through the negative pressure condenser, sends into 580～650 ℃ holding furnace insulation again; The zinc fume of cadmium tower rectifying output is cooled to zinc liquid through condenser, sends into 580～650 ℃ smart zinc holding furnace insulation again; Vapourizing furnace logical nitrogen before putting into zinc liquid is driven furnace air away.
3. by the described method of producing metal zinc with the zinc calcine electric furnace smelting of claim 2, it is characterized in that: the zinc content that obtains in plumbous tower rectifying and cadmium tower distillation process is recycled at 92%～96% B zinc, hard zinc, lead bullion, high cadmium zinc, returned smart zinc holding furnace recovery greater than 200 purpose coarse grain zinc powders in the granularity that classification obtains.
4. by the described method of producing metal zinc with the zinc calcine electric furnace smelting of claim 3, it is characterized in that: what the electric furnace smelting zinc calcine adopted is the 1250KVA electric furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105178163A CN102000829B (en) | 2010-10-25 | 2010-10-25 | Method for smelting metal zinc powder from zinc calcine by using electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105178163A CN102000829B (en) | 2010-10-25 | 2010-10-25 | Method for smelting metal zinc powder from zinc calcine by using electric furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102000829A true CN102000829A (en) | 2011-04-06 |
| CN102000829B CN102000829B (en) | 2012-06-06 |
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|---|---|---|---|
| CN2010105178163A Expired - Fee Related CN102000829B (en) | 2010-10-25 | 2010-10-25 | Method for smelting metal zinc powder from zinc calcine by using electric furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534245A (en) * | 2011-12-02 | 2012-07-04 | 马龙仁和锌业有限公司 | Method for manufacturing high-quality zinc powder |
| CN103409645A (en) * | 2013-09-03 | 2013-11-27 | 葫芦岛锌业股份有限公司 | Method for producing high-purity zinc |
| CN106811602A (en) * | 2017-02-20 | 2017-06-09 | 石家庄学院 | A kind of method that utilization cadmia prepares zinc oxide |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4514221A (en) * | 1983-02-23 | 1985-04-30 | The Japan Mining Promotive Foundation | Method of smelting zinc by injection smelting |
| CN101665879A (en) * | 2009-09-29 | 2010-03-10 | 徐建成 | Crude zinc smelting method and smelting kiln used thereby |
| CN201497341U (en) * | 2009-09-29 | 2010-06-02 | 徐建成 | Spelter smelting kiln |
-
2010
- 2010-10-25 CN CN2010105178163A patent/CN102000829B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4514221A (en) * | 1983-02-23 | 1985-04-30 | The Japan Mining Promotive Foundation | Method of smelting zinc by injection smelting |
| CN101665879A (en) * | 2009-09-29 | 2010-03-10 | 徐建成 | Crude zinc smelting method and smelting kiln used thereby |
| CN201497341U (en) * | 2009-09-29 | 2010-06-02 | 徐建成 | Spelter smelting kiln |
Non-Patent Citations (2)
| Title |
|---|
| 《中国有色冶金》 20070831 陈向强 电热还原法生产工业锌粉的探讨 27-29 1-4 , 第4期 2 * |
| 《有色金属设计》 20031231 陈国木 浅析电炉锌粉的生产 82-84 1-4 第30卷, 2 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534245A (en) * | 2011-12-02 | 2012-07-04 | 马龙仁和锌业有限公司 | Method for manufacturing high-quality zinc powder |
| CN103409645A (en) * | 2013-09-03 | 2013-11-27 | 葫芦岛锌业股份有限公司 | Method for producing high-purity zinc |
| CN103409645B (en) * | 2013-09-03 | 2014-12-10 | 葫芦岛锌业股份有限公司 | Method for producing high-purity zinc |
| CN106811602A (en) * | 2017-02-20 | 2017-06-09 | 石家庄学院 | A kind of method that utilization cadmia prepares zinc oxide |
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| Publication number | Publication date |
|---|---|
| CN102000829B (en) | 2012-06-06 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method for smelting metal zinc powder from zinc calcine by using electric furnace Effective date of registration: 20140107 Granted publication date: 20120606 Pledgee: China Development Bank Co Pledgor: Yunnan Tianhaoxi Precious Metals Co.,Ltd. Registration number: 2014990000013 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method for smelting metal zinc powder from zinc calcine by using electric furnace Effective date of registration: 20140107 Granted publication date: 20120606 Pledgee: China Development Bank Co Pledgor: Yunnan Tianhaoxi Precious Metals Co.,Ltd. Registration number: 2014990000013 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
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Granted publication date: 20120606 Termination date: 20151025 |
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