CN101343693A - Dust-separation zinc extraction method - Google Patents
Dust-separation zinc extraction method Download PDFInfo
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- CN101343693A CN101343693A CNA200710025090XA CN200710025090A CN101343693A CN 101343693 A CN101343693 A CN 101343693A CN A200710025090X A CNA200710025090X A CN A200710025090XA CN 200710025090 A CN200710025090 A CN 200710025090A CN 101343693 A CN101343693 A CN 101343693A
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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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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
Disclosed is a dust removal and zinc extraction method. Raw materials are mixed and evenly stirred through a loader according to weight proportion, 30 percent to 40 percent of blast furnace dust removal ashes, 25 percent to 35 percent of power plant dust removal ashes, 25 percent to 35 percent of blast furnace gas slime, 5 percent to 10 percent of anthracite coal are evenly delivered to a rotary kiln to be heated for refining through a conveyor, then are delivered into a dedusting chamber to experience the atomization and separation, the raw materials are delivered into a cooling pond then and zinc oxide powder is forcedly sent into a dust collecting chamber by a suction blower, the dust is collected through a bag and is supplied to a zinc supply smeltery as the raw material. The iron residues separated in the heating and extracting process in the rotary kiln are magnetically separated through a magnet separator, the iron residues with the iron content of 60 percent are delivered to an iron smelting plant, and the residue soil is supplied to a cement plant as the raw material. The invention has the advantages that the iron residues and zinc powder are extracted and separated through adopting the processed waste material dust removal ashes in large-scale smelting enterprises, the purpose of changing wastes into valuables is realized, and the resource utilization rate is enhanced.
Description
Technical field
The present invention is a kind of dedusting ash treatment process, is specially a kind of dust-separation zinc extraction method.
Background technology
Dedusting ash is to smelt a kind of grey powder of producing to get off according to processing requirement process fly-ash separator, before equipment is fully used, is to stack, and can't handle, and have a strong impact on surrounding environment.Through new research and analysis, find that dedusting ash itself has multiple components, example contains zinc 10%, iron 20-25%, and coal 10% remains to be utilized again.
Summary of the invention
The technical problem to be solved in the present invention is: dedusting ash influences environment, is difficult for handling; Contain and to utilize composition, directly abandon the waste resource.
Technical scheme of the present invention is: dust-separation zinc extraction method, with shovel loader the raw material mixing is mixed thoroughly, the raw material weight proportioning is: blast furnace dedusting ash 30-40%, the dedusting ash 25-35% of power plant, blast furnace gas mud 25-35%, hard coal 5-10%, with transfer roller raw material is delivered to rotary kiln heating uniformly and refine, advance the dust-settling compartment separation that atomizes then, enter cooling pool again and by force Zinc oxide powder is sent into dust chamber by suction fan, use bag collection, do raw material for the zinc smeltery.
Raw material weight proportion optimization blast furnace dedusting ash 34%, power plant's dedusting ash 30%, blast furnace gas mud 30%, hard coal 6%.
Isolated scum is through the magnetic separator magnetic separation in the rotary kiln of the present invention heating extractive process, iron-holder 60% send iron work, the residue dregs offers the cement mill and makes raw material.
The waste material dedusting ash process that the present invention utilizes large-scale smelting enterprise to get off is handled, and refines and isolates scum and zinc powder, reaches the purpose that turns waste into wealth, and improves resource utilization.
Description of drawings
Fig. 1 is a production scheme of the present invention.
Fig. 2 is the synoptic diagram of rotary kiln in the embodiment of the invention.
Embodiment
The used dedusting ash of the present invention is mainly blast furnace dedusting ash, power plant's dedusting ash, four kinds in blast furnace gas mud, hard coal.
Press blast furnace dedusting ash 34%, power plant's dedusting ash 30%, blast furnace gas mud 30%, the weight ratio of hard coal 6%, mix with shovel loader and to mix thoroughly, with transfer roller material being delivered to the rotary kiln heating uniformly then refines, as Fig. 2,36.8 meters of rotary kiln body total lengths, 2.5 meters of external diameters, rotating speed 2-3 rev/min, kiln hood (slag notch) is installed a gas burner and a gas blower, and the unnecessary coal gas that utilizes blast furnace or coke oven enters gas line and sends burner to and mix the automatic sparking mode of employing electronic striking with the wind of gas blower, coal gas is lighted, sprayed in the kiln and burn.Can reduce coal consumption like this, and heat-up rate is fast, eliminates environmental pollution, increase economic efficiency.The kiln tail (opening for feed) of rotary kiln is provided with a transfer roller, is used for charging.The rotary kiln Heating temperature is divided three sections, begins in 12 meters temperature 800-1000 ℃ from kiln hood, and and then in 12 meters scopes, promptly kiln body stage casing temperature is at 1000-1300 ℃, 12.8 meters of final stages, i.e. and kiln body tail end, temperature is reduced to 600-800 ℃.Material is sent into from the kiln tail, through 600-800 ℃ of temperature section, is 1000-1300 ℃ of temperature section then earlier, is 800-1000 ℃ of temperature section at last, isolates extractive matter and scum from kiln hood.Extractive matter advances the dust-settling compartment separation that atomizes, the 18m * 3.7m of falling dust room, and brick mix structure, and then enter cooling pool and by force Zinc oxide powder is sent into dust chamber by suction fan, use bag collection, packing is done raw material for the zinc smeltery.
Proportioning raw materials of the present invention can be at blast furnace dedusting ash 30-40%, the dedusting ash 25-35% of power plant, and blast furnace gas mud 25-35% selects between hard coal 5-10%.
In order to make full use of the scrap iron slag of discharging from rotary kiln end, scum is handled again, through the magnetic separator magnetic separation, iron-holder is sent iron work 60% or more, remains dregs and offers the cement mill and make raw material.
Claims (3)
1, dust-separation zinc extraction method, it is characterized in that the raw material mixing being mixed thoroughly with shovel loader, the raw material weight proportioning is: blast furnace dedusting ash 30-40%, the dedusting ash 25-35% of power plant, blast furnace gas mud 25-35%, hard coal 5-10%, with transfer roller raw material is delivered to rotary kiln heating uniformly and refine, advance the dust-settling compartment separation that atomizes then, enter cooling pool again and by force Zinc oxide powder is sent into dust chamber by suction fan, use bag collection, do raw material for the zinc smeltery.
2, dust-separation zinc extraction method according to claim 1 is characterized in that the raw material weight proportioning is: blast furnace dedusting ash 34%, power plant's dedusting ash 30%, blast furnace gas mud 30%, hard coal 6%.
3, dust-separation zinc extraction method according to claim 1 is characterized in that in the rotary kiln heating extractive process isolated scum through the magnetic separator magnetic separation, iron-holder 60% send iron work, the residue dregs offers the cement mill and makes raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710025090XA CN101343693A (en) | 2007-07-12 | 2007-07-12 | Dust-separation zinc extraction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710025090XA CN101343693A (en) | 2007-07-12 | 2007-07-12 | Dust-separation zinc extraction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101343693A true CN101343693A (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA200710025090XA Pending CN101343693A (en) | 2007-07-12 | 2007-07-12 | Dust-separation zinc extraction method |
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| CN (1) | CN101343693A (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629245B (en) * | 2009-08-03 | 2011-03-30 | 杨志杰 | Zinc hydrometallurgical process of iron removal by neutralization hydrolysis |
| CN101716553B (en) * | 2009-12-28 | 2012-04-18 | 河南理工大学 | Kiln slag processing technology of zinc volatilizing kiln |
| CN102492855A (en) * | 2011-12-28 | 2012-06-13 | 唐锡中 | Method for recovering valuable metal from solid waste material containing zinc |
| CN102703714A (en) * | 2012-06-04 | 2012-10-03 | 红河锌联科技发展有限公司 | Method for preparing iron powder and recovering nonferrous metal from blast furnace iron making smoke dust |
| CN102899505A (en) * | 2012-09-29 | 2013-01-30 | 苏州永基再生资源有限公司 | Method for recovering zinc by using rotary kiln and device thereof |
| CN104368436A (en) * | 2014-11-04 | 2015-02-25 | 无锡市百顺机械厂 | Method for screening ferrous products out from iron ores |
| CN104368438A (en) * | 2014-11-04 | 2015-02-25 | 无锡阳工机械制造有限公司 | Method of extracting finished iron product from iron ore |
| CN104368435A (en) * | 2014-11-04 | 2015-02-25 | 无锡阳工机械制造有限公司 | Method for acquiring finished product iron from iron ore |
| CN104437852A (en) * | 2014-11-04 | 2015-03-25 | 无锡市百顺机械厂 | Method for extracting finished-product iron from iron ores and transporting finished-product iron |
| CN104437855A (en) * | 2014-11-04 | 2015-03-25 | 无锡市百顺机械厂 | Method for extracting finished iron from iron ore |
| CN104437854A (en) * | 2014-11-04 | 2015-03-25 | 无锡市百顺机械厂 | Method for obtaining and transporting finished iron from iron ores |
| CN104437856A (en) * | 2014-11-04 | 2015-03-25 | 无锡市百顺机械厂 | Method for extracting finished product iron from iron ores |
| CN104437840A (en) * | 2014-11-04 | 2015-03-25 | 无锡阳工机械制造有限公司 | Method for obtaining finished product of iron from iron ores |
| CN104437853A (en) * | 2014-11-04 | 2015-03-25 | 无锡市百顺机械厂 | Method for collecting finished iron products from iron ores |
| CN104475248A (en) * | 2014-11-04 | 2015-04-01 | 无锡市百顺机械厂 | Method for obtaining finished product iron from iron ore |
| CN104475249A (en) * | 2014-11-04 | 2015-04-01 | 无锡阳工机械制造有限公司 | Method for screening finished product iron from iron ore |
| CN104475241A (en) * | 2014-11-04 | 2015-04-01 | 无锡阳工机械制造有限公司 | Method for extracting finished product iron from iron ore |
| CN104475247A (en) * | 2014-11-04 | 2015-04-01 | 无锡阳工机械制造有限公司 | Method for extracting and transporting finished product iron from iron ore |
| CN104525369A (en) * | 2014-11-04 | 2015-04-22 | 无锡市百顺机械厂 | Method for extracting finished iron from iron ore |
| CN107309082A (en) * | 2017-07-19 | 2017-11-03 | 北京科技大学 | The method that superconducting high-gradient Magneto separate converter dust-removing ash prepares high-purity ferriferous oxide |
| CN108034829A (en) * | 2017-12-05 | 2018-05-15 | 杜海东 | A kind of method of the bag-type dust ash production containing scum and high zinc material |
| CN108704762A (en) * | 2018-05-07 | 2018-10-26 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of blast furnace dust magnetic kind magnetization dry separation iron-extracting process |
-
2007
- 2007-07-12 CN CNA200710025090XA patent/CN101343693A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629245B (en) * | 2009-08-03 | 2011-03-30 | 杨志杰 | Zinc hydrometallurgical process of iron removal by neutralization hydrolysis |
| CN101716553B (en) * | 2009-12-28 | 2012-04-18 | 河南理工大学 | Kiln slag processing technology of zinc volatilizing kiln |
| CN102492855A (en) * | 2011-12-28 | 2012-06-13 | 唐锡中 | Method for recovering valuable metal from solid waste material containing zinc |
| CN102703714A (en) * | 2012-06-04 | 2012-10-03 | 红河锌联科技发展有限公司 | Method for preparing iron powder and recovering nonferrous metal from blast furnace iron making smoke dust |
| CN102899505A (en) * | 2012-09-29 | 2013-01-30 | 苏州永基再生资源有限公司 | Method for recovering zinc by using rotary kiln and device thereof |
| CN104437854A (en) * | 2014-11-04 | 2015-03-25 | 无锡市百顺机械厂 | Method for obtaining and transporting finished iron from iron ores |
| CN104475248A (en) * | 2014-11-04 | 2015-04-01 | 无锡市百顺机械厂 | Method for obtaining finished product iron from iron ore |
| CN104368435A (en) * | 2014-11-04 | 2015-02-25 | 无锡阳工机械制造有限公司 | Method for acquiring finished product iron from iron ore |
| CN104437852A (en) * | 2014-11-04 | 2015-03-25 | 无锡市百顺机械厂 | Method for extracting finished-product iron from iron ores and transporting finished-product iron |
| CN104437855A (en) * | 2014-11-04 | 2015-03-25 | 无锡市百顺机械厂 | Method for extracting finished iron from iron ore |
| CN104368436A (en) * | 2014-11-04 | 2015-02-25 | 无锡市百顺机械厂 | Method for screening ferrous products out from iron ores |
| CN104437856A (en) * | 2014-11-04 | 2015-03-25 | 无锡市百顺机械厂 | Method for extracting finished product iron from iron ores |
| CN104437840A (en) * | 2014-11-04 | 2015-03-25 | 无锡阳工机械制造有限公司 | Method for obtaining finished product of iron from iron ores |
| CN104437853A (en) * | 2014-11-04 | 2015-03-25 | 无锡市百顺机械厂 | Method for collecting finished iron products from iron ores |
| CN104368438A (en) * | 2014-11-04 | 2015-02-25 | 无锡阳工机械制造有限公司 | Method of extracting finished iron product from iron ore |
| CN104475249A (en) * | 2014-11-04 | 2015-04-01 | 无锡阳工机械制造有限公司 | Method for screening finished product iron from iron ore |
| CN104475241A (en) * | 2014-11-04 | 2015-04-01 | 无锡阳工机械制造有限公司 | Method for extracting finished product iron from iron ore |
| CN104475247A (en) * | 2014-11-04 | 2015-04-01 | 无锡阳工机械制造有限公司 | Method for extracting and transporting finished product iron from iron ore |
| CN104525369A (en) * | 2014-11-04 | 2015-04-22 | 无锡市百顺机械厂 | Method for extracting finished iron from iron ore |
| CN107309082A (en) * | 2017-07-19 | 2017-11-03 | 北京科技大学 | The method that superconducting high-gradient Magneto separate converter dust-removing ash prepares high-purity ferriferous oxide |
| CN107309082B (en) * | 2017-07-19 | 2021-01-12 | 北京科技大学 | Method for preparing high-purity iron oxide from dust removed by superconducting high-gradient magnetic separation converter |
| CN108034829A (en) * | 2017-12-05 | 2018-05-15 | 杜海东 | A kind of method of the bag-type dust ash production containing scum and high zinc material |
| CN108704762A (en) * | 2018-05-07 | 2018-10-26 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of blast furnace dust magnetic kind magnetization dry separation iron-extracting process |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090114 |