CN102000829B - 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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- CN102000829B CN102000829B CN2010105178163A CN201010517816A CN102000829B CN 102000829 B CN102000829 B CN 102000829B CN 2010105178163 A CN2010105178163 A CN 2010105178163A CN 201010517816 A CN201010517816 A CN 201010517816A CN 102000829 B CN102000829 B CN 102000829B
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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 580-650DEG 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 is high, the zinc oxygenation efficiency is high, effectively zinc is 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 to 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, and can directly adopt zinc calcine is raw material, and it is low, active strong that the metal zinc of output contains oxygen; It is high to have the metal direct yield, and raw material sources are extensive, and 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 ℃, gets into plumbous tower rectifying, 1100～1300 ℃ of rectification temperatures; Be cooled to zinc liquid again and get into 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.
Zinc content in plumbous tower rectifying and cadmium tower distillation process, obtaining is recycled at 92%～96% B zinc, hard zinc, lead bullion, high cadmium zinc, returns smart zinc holding furnace recovery in the granularity that classification obtains greater than 200 purpose coarse grain zinc powders.
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, and through electric furnace smelting, rectifying furnace is purified; Vapourizing furnace volatilization, output contain low, the active strong metal zinc of oxygen, and this production technology current collection stove is smelted, zinc refining; Metal zinc is produced three independent production processes in one, has metal direct yield height, and raw material sources are extensive; Energy resource consumption is low, superior product quality, the characteristics that production cost is low.If liquid zinc distillation furnace can be produced without the evaporation of refined zinc, under the protection of the Sui gas evaporated metal zinc, chlorine can be obtained if high purity oxygen ratio of zinc, a production line can have three kinds of products, with product diversification features.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: in the 1250KVA electric furnace, throw zinc calcine 14t 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: in the 1250KVA electric furnace, drop into continuously zinc a word used in place name sand 28t, a word used in place name sand contains zinc 55%, the continued operation 48h that feeds intake, and 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 contains zinc 99.38%, ZnO content 0.5%, zinc direct yield 80%, comprehensive recovery 95.4%.
Embodiment 3: in the 1250KVA electric furnace, drop into continuously zinc a word used in place name sand 28t, 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, golden 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 ℃, gets into plumbous tower rectifying, 1100～1300 ℃ of rectification temperatures; Be cooled to zinc liquid again and get into the rectifying of cadmium tower, 1000～1300 ℃ of rectification temperatures, cooling back zinc liquid get into 580～650 ℃ smart zinc holding furnace insulation again, put into vapourizing furnace then; 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, and vapourizing furnace should lead to nitrogen and drives furnace air away putting into before the zinc liquid of insulation.
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 in plumbous tower rectifying and cadmium tower distillation process, obtaining is recycled at 92%～96% B zinc, hard zinc, lead bullion, high cadmium zinc, returns smart zinc holding furnace recovery in the granularity that classification obtains greater than 200 purpose coarse grain zinc powders.
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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105178163A 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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| Publication Number | Publication Date |
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| CN102000829A CN102000829A (en) | 2011-04-06 |
| CN102000829B true 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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Families Citing this family (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 |
| 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 |
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 |
|---|
| 陈向强.电热还原法生产工业锌粉的探讨.《中国有色冶金》.2007,(第4期),27-29. * |
| 陈国木.浅析电炉锌粉的生产.《有色金属设计》.2003,第30卷82-84. * |
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| CN102000829A (en) | 2011-04-06 |
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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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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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