CN104975180A - Method and device for leaching blast furnace gas dust through ultrasonic-microwave and ammonia combination method - Google Patents
Method and device for leaching blast furnace gas dust through ultrasonic-microwave and ammonia combination method Download PDFInfo
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- CN104975180A CN104975180A CN201510350021.0A CN201510350021A CN104975180A CN 104975180 A CN104975180 A CN 104975180A CN 201510350021 A CN201510350021 A CN 201510350021A CN 104975180 A CN104975180 A CN 104975180A
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000002386 leaching Methods 0.000 title claims abstract description 51
- 239000000428 dust Substances 0.000 title claims abstract description 45
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 56
- 239000011701 zinc Substances 0.000 claims abstract description 52
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 45
- 230000008569 process Effects 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000005695 Ammonium acetate Substances 0.000 claims abstract description 6
- 229940043376 ammonium acetate Drugs 0.000 claims abstract description 6
- 235000019257 ammonium acetate Nutrition 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- 210000000038 chest Anatomy 0.000 claims description 49
- 239000000203 mixture Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 15
- 239000000523 sample Substances 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 14
- 239000003500 flue dust Substances 0.000 claims description 14
- 238000010907 mechanical stirring Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- 238000003723 Smelting Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 5
- 238000006713 insertion reaction Methods 0.000 claims description 5
- 238000004886 process control Methods 0.000 claims description 5
- 238000005272 metallurgy Methods 0.000 abstract description 7
- 150000001875 compounds Chemical class 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000000908 ammonium hydroxide Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000002956 ash Substances 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material 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
-
- 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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a method and device for leaching blast furnace gas dust through an ultrasonic-microwave and ammonia combination method, belonging to the technical field of unconventional metallurgy. Firstly, an alkali coordination compound is prepared with pure water, wherein the concentration of ammonium hydroxide in the coordination compound is 1.5-5 mol/L, and the concentration of ammonium acetate is 1.5-5 mol/L; the coordination compound is mixed uniformly to form a coordination leaching agent; then the blast furnace gas dust and the coordination leaching agent are sequentially added into a reaction vessel for leaching; microwave and ultrasonic waves are applied during a leaching process under a relatively sealing condition; and a zinc lixiviating solution is obtained through filtering and washing after leaching is finished. According to the method, the ammonia method is intensified by adopting an unconventional metallurgy intensive method (microwave metallurgy and ultrasonic metallurgy) for leaching the blast furnace gas dust, the aim of leaching zinc in the blast furnace gas dust rapidly and efficiently is achieved, and other impurities are not dissolved.
Description
Technical field
The present invention relates to the method and apparatus that a kind of ultrasonic-microwave associating ammonia process leaches blast furnace dust, belong to unconventional metallurgical technology field.
Background technology
Although China contains certain zn Mineral resource, because part ore properties is complicated, have inconvenient traffic or exploit difficulty, therefore economic available reserves do not enrich, and far can not meet economy development requirement.Deepening continuously in recent years along with reform and opening-up, national economy steady-state growth, country is also continuing to increase the investment of Infrastructure.The starting material level of consumption improves day by day, and driven China's Zn Cr coating fast-developing, industry size constantly expands, and China has become main zinc producing country of the world and country of consumption.The continuous expansion of zinc abstraction enterprise production capacity, causes surging to the demand of zinc ore concentrate.Domestic zinc ore concentrate resource reserve sharply declines, and east China area zn Mineral resource is close to exhausted, and some mines of northeast North China are closed successively, and South China's reserves obviously reduce.
Because domestic zinc ore concentrate resource can not meet smelting needs, zinc ore concentrate import volume constantly increases.2000-2009 China's zinc abstraction abilities increase progressively 12.3% every year according to statistics, within 2009, are 5,950,000 tons, and zinc ore concentrate production capacity increases progressively 11.5%, 2009 years is every year 3,860,000 tons.At present, China's zinc ore concentrate external dependence degree is more than 50%, and raw material external dependence degree constantly rises, and cause the whole competitiveness of China's Zn Cr coating to occur downtrending, in global competition, be in passive position, this trend can not effectively be solved at short notice.Therefore domestic a lot of producer strengthens the comprehensive utilization to zinc secondary resources such as zinc oxide fumeses, to alleviate the raw material a faced difficult problem in short supply.
Blast furnace dust is the dust of discharging with blast furnace gas, its total amount is about 1% ~ 3% of iron output, a heavy-duty steel ironworks, the gas ash flue dust given off every year has nearly ten thousand tons more than, because these flue dust comparison of ingredients are complicated, particle diameter is thinner again, most of producer pours suction pit with Venturi meter water, through precipitation, then precipitation is dug out land purchase outside factory and buries, for this reason, manufacturer all needs a large amount of manpower and financial resources of cost to go to process this kind of flue dust every year.In addition, Steel Plant's steel-making converter (or electric furnace) every day also will discharge a large amount of flue dust, containing the heavy metal element such as tin, nickel, lead, zinc, copper that can leach in these flue dust, pollution is to a certain degree had to surrounding environment, therefore, manufacturer also will process this kind of flue dust, because this kind of flue dust composition is more complicated, quality is thinner, brings certain difficulty to work for the treatment of.Find after deliberation, the flue dust that Steel Plant produce in steel-making, iron manufacturing process all contains very a high proportion of zinc, has therefore occurred all multi-methods processing the material containing zinc of zinc-bearing mineral or various industry byproduct.
Current Steel Plant zinc-containing dust treatment process is more, but all there is open question.Wherein rotary kiln evaporation method is containing the most traditional method of Zn scrap returns process.
Patent CN104532007A disclosed " a kind of method that sintering machine head end electric field dedusting ash and blast furnace dust fully utilize ", compound rotary kiln baking is carried out reduction volatilization by the method, ferrous material after reduction reclaims and returns iron ore sintering use, zinc in compound, potassium, lead are with the form enrichment of gaseous oxygen compound, collected by rotary kiln dust-removal system, rotary kiln top temperature is 1150 DEG C, and the rotary kiln baking time is 8 hours.
Patent application 201410330341.5 disclosed " iron content zinc powder dirt recycles technique " (publication number is CN104073649A), its method: mixed with coal dust and binding agent by dried iron content zinc powder dirt, pelletizer pelletizing, obtains green-ball; Green-ball is sent into shaft furnace, is warming up to 1100 ~ 1300 DEG C, the zinc be reduced at high temperature becomes zinc fume and discharges shaft furnace with coal gas, enters two-step filter; Fly-ash separator gained dedusting mud enters sedimentation tank filter, precipitation, multiviscosisty, drying obtain zinc powder.
Patent application 201210369145.X disclosed " utilizing rotary kiln to reclaim method and the device thereof of zinc " (publication number is CN102899505A), blast-furnace dust, electric furnace ash, gas mud and hard coal is adopted to carry out mix in its method, at 800 DEG C ~ 1050 DEG C, high-temp combustion makes zinc gasify, settling pocket and flue dust dust separation is entered at centrifugal blower effect gasified zinc, and do cooling process by surface cooler, gasify zinc and oxygen contact preparation zinc oxide in the process.
Patent application 201110444928.5 disclosed " a kind of from containing the method reclaiming valuable metal zinc solid waste ", raw material mixes according to proportioning by the method, then be input in rotary kiln, air blast is heated, and wherein air blast reaches 8000Hz, air output control is at 40-50Hz, high-temperature zone temperature controls at about 1300 DEG C, and kiln speed control is built in 30-45Hz, and kiln end temperature controls below 500-600 DEG C, air cooling pipe and pulsating collection, obtain secondary zinc oxide.
Above-mentioned traditional treatment method all belongs to pyrogenic attack and reclaims zinc, it enters furnace charge calorific value, and all to require that high, domestic current most of enterprise enters furnace charge calorific value higher, operating rate is low, short, the comprehensive power consumption of life-span of kiln liner is high, treatment capacity is little, investment is large, coke consumption rate is large, and tailings is high containing energy consumptions such as zinc, charcoal are high, particularly to poor feasibility economically during treatment and use low-grade material.In addition, adopt long rotary kiln process mixing pelletizing or dust, then need employing two sections of rotary kilns to the zinc directly reclaimed in dust, enter second rotary kiln containing zinc fume and carry out reprocessing, equipment is huge, and efficiency is low, easily produces ring formation phenomenon.
Therefore, how difficult Mineral resources of cost-effective efficiency utilization and select smelting waste are urgent problems instantly.
Summary of the invention
For above-mentioned prior art Problems existing and deficiency, the invention provides the method and apparatus that a kind of ultrasonic-microwave associating ammonia process leaches blast furnace dust.The method adopts unconventional strengthening through metallurgy means (microwave metallurgical and ultrasonic wave metallurgy) strengthening ammonia process to leach blast furnace dust, to reach fast, efficiently to leach the object of zinc in blast furnace dust, and other impurity do not dissolve, the present invention is achieved through the following technical solutions.
A kind of ultrasonic-microwave associating ammonia process leaches the method for blast furnace dust, its concrete steps comprise: coordinate mixture by pure water preparation alkalescence, the ammonia concn in cooperation mixture is made to be 1.5 ~ 5mol/L, ammonium acetate concentration is 1.5 ~ 5mol/L, coordination leaching agent is formed after stirring, controlling total ammonia density in coordination leaching agent is 3 ~ 10mol/L, then blast furnace dust and coordination leaching agent are joined in reaction vessel leach by solid-to-liquid ratio 1:1 ~ 10g/ml priority, under opposing seal state, leaching process controls microwave output power is 300 ~ 1200W, ultrasonic power output is 600 ~ 1800W, temperature of reaction is 25 ~ 60 DEG C, stirring velocity is 100r/min ~ 600r/min, extraction time is 0.5h ~ 1.0h, then zinc lixiviating solution is obtained after after filtration-washing.
Described blast furnace dust is the flue dust of iron-smelting blast furnace volatilization output.
A kind of ultrasonic-microwave associating ammonia process leaches the device of blast furnace dust, comprise microwave Controlling System, ultrasonic wave Controlling System and leaching system, microwave Controlling System is primarily of microwave control panel and microwave reaction cavity composition, microwave control panel comprises the micro-wave energy startup knob 1 that surface is arranged, microwave power adjusting knob 2, Multifunctional voltmeters 3 and temperature display meter 4, microwave reaction cavity comprises cavity, air draft duct 5, magnetron 6, lagging material 7 and thermopair 9, thermopair 9 is connected with microwave control panel by wire, lagging material 7 is positioned at inside cavity, magnetron 6 is positioned at containment portion and is uniformly distributed, air draft duct 5 to be arranged on magnetron 6 and to pass from magnetron 6 inside, ultrasonic wave Controlling System is primarily of ultrasonic wave control panel and interconnective ultrasonic generator composition, wherein ultrasonic wave control panel comprises ultrasonic wave operation warning lamp 19, ultrasonic power push button 20, ultrasonic power adjustment button 22 and the ultrasonic wave output parameter display instrument 23 that surface is arranged, ultrasonic generator connects transverter 21, horn 25 and ultrasonic probe 24 successively, by regulating ultrasonic wave control panel, ultrasonic wave sends from ultrasonic probe 24 after changing through transverter 21, horn 25 successively, leaching system comprises reaction vessel 8, electric blender 10, mechanical stirring digital display controller 11, opening for feed 12, inlet control valve 13, discharging control valve 14, discharge pipe 15, one-level stock chest 16, secondary stock chest 17 and three grades of stock chests 18, reaction vessel 8 is placed in microwave reaction inside cavity, bottom contacts with ultrasonic probe 24, electric blender 10 and thermopair 9 insertion reaction container 8 inside, electric blender 10 is connected with mechanical stirring digital display controller 11, reaction vessel 8 top is provided with the opening for feed 12 with inlet control valve 13, the discharge pipe 15 with discharging control valve 14 is provided with bottom reaction vessel 8, discharge pipe 15 exit end connects one-level stock chest 16 successively, secondary stock chest 17 and three grades of stock chests 18, one-level stock chest 16, secondary stock chest 17 and three grades of stock chests 18 are interconnected and are provided with filtering layer therebetween.
The pipe joint on described magnetron 6 surface adopts series system to connect.
The using method that this ultrasonic-microwave associating ammonia process leaches the device of blast furnace dust is: take a certain amount of blast furnace dust raw material, successively Leaching reaction container 8 is loaded from opening for feed 12 with coordination leaching agent, be placed in microwave reaction cavity and ultrasonic wave generation inside cavity, lagging material 7 on cloth around reaction vessel 8, the related electric blender 10 having mechanical stirred for several to show controller 11 is placed in reaction vessel 8, wherein mechanical stirring blade sheet need submerge leach liquor appropriate location, the thermopair being connected to microwave Controlling System is inserted in reaction vessel and measures real time reaction temperature.Inspection units connects and ensures that inlet control valve 13 and discharging control valve 14 are in closing condition, open micro-wave energy start knob 1 and ultrasonic power push button 20 and regulate corresponding output rating, ensure that microwave equipment and ultrasonic equipment normally run, Strengthen education certain hour, rear cut-out microwave and ultrasonic power are processed, open discharging control valve 14, under stirring leaching feed liquid is discharged reaction vessel from discharge pipe 15 and enter stock chest, obtain leach liquor, get supernatant liquor and measure its Zn content.
The invention has the beneficial effects as follows: adopt ultrasonic-microwave associating ammonia process part to leach the method for blast furnace dust, utilize microwave selective, the rapid heating mode of homogeneity etc. and adjoint other effect of hyperacoustic cavatition, cause shockwave, microjets etc. have impact damage to solid skin, be conducive to solid surface coating to break, be scattered, continuous formation zinc reaction interface, create active surface, reinforcing mass transfer effect, it is short to play the treatment time, the object of valuable metal zinc in efficient leaching blast furnace dust, blast furnace dust is leached through ultrasonic-microwave associating ammonia process part, its zinc leaching rate is greater than 87.4%, the leaching device that the present invention relates to is simple to operation, and can do multiple conversion, extensive in field practicality such as metallurgy, chemical industry, and suitability is strong, the advantages such as zinc leaching rate is high, economic environmental protection.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention structural representations.
In figure: 1-micro-wave energy starts knob, 2-microwave power adjusting knob, 3-Multifunctional voltmeters, 4-temperature display meter, 5-air draft duct, 6-magnetron, 7-lagging material, 8-reaction vessel, 9-thermopair, 10-electric blender, 11-mechanical stirring digital display controller, 12-opening for feed, 13-inlet control valve, 14-discharging control valve, 15-discharge pipe, 16-one-level stock chest, 17-secondary stock chest, 18-tri-grades of stock chests, 19-ultrasonic wave runs warning lamp, 20-ultrasonic power push button, 21-transverter, 22-ultrasonic power regulates button, 23-ultrasonic wave output parameter display instrument, 24-ultrasonic probe, 25-horn.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1
This ultrasonic-microwave associating ammonia process leaches the method for blast furnace dust, stove gas ash is a kind of flue dust of iron-smelting blast furnace volatilization output, blast furnace dust Zn content is 21.67wt%, its concrete steps comprise: coordinate mixture by pure water preparation alkalescence, the ammonia concn in cooperation mixture is made to be 1.5mol/L, ammonium acetate concentration is 1.5mol/L, coordination leaching agent is formed after stirring, controlling total ammonia density in coordination leaching agent is 3mol/L, then blast furnace dust and coordination leaching agent are successively joined in reaction vessel by solid-to-liquid ratio 1:5g/ml and leach, under opposing seal state, leaching process controls microwave output power is 1200W, ultrasonic power output is 1800W, temperature of reaction is 60 DEG C, stirring velocity is 600r/min, extraction time is 0.5h, then zinc lixiviating solution is obtained after after filtration-washing.
Above-mentioned zinc lixiviating solution after testing rear zinc leaching rate reaches 87.4%.
As shown in Figure 1, this ultrasonic-microwave associating ammonia process leaches the device of blast furnace dust, comprise microwave Controlling System, ultrasonic wave Controlling System and leaching system, microwave Controlling System is primarily of microwave control panel and microwave reaction cavity composition, microwave control panel comprises the micro-wave energy startup knob 1 that surface is arranged, microwave power adjusting knob 2, Multifunctional voltmeters 3 and temperature display meter 4, microwave reaction cavity comprises cavity, air draft duct 5, magnetron 6, lagging material 7 and thermopair 9, thermopair 9 is connected with microwave control panel by wire, lagging material 7 is positioned at inside cavity, magnetron 6 is positioned at containment portion and is uniformly distributed, air draft duct 5 to be arranged on magnetron 6 and to pass from magnetron 6 inside, ultrasonic wave Controlling System is primarily of ultrasonic wave control panel and interconnective ultrasonic generator composition, wherein ultrasonic wave control panel comprises ultrasonic wave operation warning lamp 19, ultrasonic power push button 20, ultrasonic power adjustment button 22 and the ultrasonic wave output parameter display instrument 23 that surface is arranged, ultrasonic generator connects transverter 21, horn 25 and ultrasonic probe 24 successively, by regulating ultrasonic wave control panel, ultrasonic wave sends from ultrasonic probe 24 after changing through transverter 21, horn 25 successively, leaching system comprises reaction vessel 8, electric blender 10, mechanical stirring digital display controller 11, opening for feed 12, inlet control valve 13, discharging control valve 14, discharge pipe 15, one-level stock chest 16, secondary stock chest 17 and three grades of stock chests 18, reaction vessel 8 is placed in microwave reaction inside cavity, bottom contacts with ultrasonic probe 24, electric blender 10 and thermopair 9 insertion reaction container 8 inside, electric blender 10 is connected with mechanical stirring digital display controller 11, reaction vessel 8 top is provided with the opening for feed 12 with inlet control valve 13, the discharge pipe 15 with discharging control valve 14 is provided with bottom reaction vessel 8, discharge pipe 15 exit end connects one-level stock chest 16 successively, secondary stock chest 17 and three grades of stock chests 18, one-level stock chest 16, secondary stock chest 17 and three grades of stock chests 18 are interconnected and are provided with filtering layer therebetween, wherein the pipe joint on magnetron 6 surface adopts series system to connect.
Embodiment 2
This ultrasonic-microwave associating ammonia process leaches the method for blast furnace dust, stove gas ash is a kind of flue dust of iron-smelting blast furnace volatilization output, blast furnace dust Zn content is 40.22wt%, its concrete steps comprise: coordinate mixture by pure water preparation alkalescence, the ammonia concn in cooperation mixture is made to be 5mol/L, ammonium acetate concentration is 5mol/L, coordination leaching agent is formed after stirring, controlling total ammonia density in coordination leaching agent is 10mol/L, then blast furnace dust and coordination leaching agent are successively joined in reaction vessel by solid-to-liquid ratio 1:1g/ml and leach, under opposing seal state, leaching process controls microwave output power is 300W, ultrasonic power output is 600W, temperature of reaction is 45 DEG C, stirring velocity is 350r/min, extraction time is 1.0h, then zinc lixiviating solution is obtained after after filtration-washing.
Above-mentioned zinc lixiviating solution after testing rear zinc leaching rate reaches 94.5%.
As shown in Figure 1, this ultrasonic-microwave associating ammonia process leaches the device of blast furnace dust, comprise microwave Controlling System, ultrasonic wave Controlling System and leaching system, microwave Controlling System is primarily of microwave control panel and microwave reaction cavity composition, microwave control panel comprises the micro-wave energy startup knob 1 that surface is arranged, microwave power adjusting knob 2, Multifunctional voltmeters 3 and temperature display meter 4, microwave reaction cavity comprises cavity, air draft duct 5, magnetron 6, lagging material 7 and thermopair 9, thermopair 9 is connected with microwave control panel by wire, lagging material 7 is positioned at inside cavity, magnetron 6 is positioned at containment portion and is uniformly distributed, air draft duct 5 to be arranged on magnetron 6 and to pass from magnetron 6 inside, ultrasonic wave Controlling System is primarily of ultrasonic wave control panel and interconnective ultrasonic generator composition, wherein ultrasonic wave control panel comprises ultrasonic wave operation warning lamp 19, ultrasonic power push button 20, ultrasonic power adjustment button 22 and the ultrasonic wave output parameter display instrument 23 that surface is arranged, ultrasonic generator connects transverter 21, horn 25 and ultrasonic probe 24 successively, by regulating ultrasonic wave control panel, ultrasonic wave sends from ultrasonic probe 24 after changing through transverter 21, horn 25 successively, leaching system comprises reaction vessel 8, electric blender 10, mechanical stirring digital display controller 11, opening for feed 12, inlet control valve 13, discharging control valve 14, discharge pipe 15, one-level stock chest 16, secondary stock chest 17 and three grades of stock chests 18, reaction vessel 8 is placed in microwave reaction inside cavity, bottom contacts with ultrasonic probe 24, electric blender 10 and thermopair 9 insertion reaction container 8 inside, electric blender 10 is connected with mechanical stirring digital display controller 11, reaction vessel 8 top is provided with the opening for feed 12 with inlet control valve 13, the discharge pipe 15 with discharging control valve 14 is provided with bottom reaction vessel 8, discharge pipe 15 exit end connects one-level stock chest 16 successively, secondary stock chest 17 and three grades of stock chests 18, one-level stock chest 16, secondary stock chest 17 and three grades of stock chests 18 are interconnected and are provided with filtering layer therebetween, wherein the pipe joint on magnetron 6 surface adopts series system to connect.
Embodiment 3
This ultrasonic-microwave associating ammonia process leaches the method for blast furnace dust, stove gas ash is a kind of flue dust of iron-smelting blast furnace volatilization output, blast furnace dust Zn content is 4.23wt%, its concrete steps comprise: coordinate mixture by pure water preparation alkalescence, the ammonia concn in cooperation mixture is made to be 3.5mol/L, ammonium acetate concentration is 2.5mol/L, coordination leaching agent is formed after stirring, controlling total ammonia density in coordination leaching agent is 6mol/L, then blast furnace dust and coordination leaching agent are successively joined in reaction vessel by solid-to-liquid ratio 1:10g/ml and leach, under opposing seal state, leaching process controls microwave output power is 900W, ultrasonic power output is 1200W, temperature of reaction is 25 DEG C, stirring velocity is 100r/min, extraction time is 0.8h, then zinc lixiviating solution is obtained after after filtration-washing.
Above-mentioned zinc lixiviating solution after testing rear zinc leaching rate reaches 92.5%.
As shown in Figure 1, this ultrasonic-microwave associating ammonia process leaches the device of blast furnace dust, comprise microwave Controlling System, ultrasonic wave Controlling System and leaching system, microwave Controlling System is primarily of microwave control panel and microwave reaction cavity composition, microwave control panel comprises the micro-wave energy startup knob 1 that surface is arranged, microwave power adjusting knob 2, Multifunctional voltmeters 3 and temperature display meter 4, microwave reaction cavity comprises cavity, air draft duct 5, magnetron 6, lagging material 7 and thermopair 9, thermopair 9 is connected with microwave control panel by wire, lagging material 7 is positioned at inside cavity, magnetron 6 is positioned at containment portion and is uniformly distributed, air draft duct 5 to be arranged on magnetron 6 and to pass from magnetron 6 inside, ultrasonic wave Controlling System is primarily of ultrasonic wave control panel and interconnective ultrasonic generator composition, wherein ultrasonic wave control panel comprises ultrasonic wave operation warning lamp 19, ultrasonic power push button 20, ultrasonic power adjustment button 22 and the ultrasonic wave output parameter display instrument 23 that surface is arranged, ultrasonic generator connects transverter 21, horn 25 and ultrasonic probe 24 successively, by regulating ultrasonic wave control panel, ultrasonic wave sends from ultrasonic probe 24 after changing through transverter 21, horn 25 successively, leaching system comprises reaction vessel 8, electric blender 10, mechanical stirring digital display controller 11, opening for feed 12, inlet control valve 13, discharging control valve 14, discharge pipe 15, one-level stock chest 16, secondary stock chest 17 and three grades of stock chests 18, reaction vessel 8 is placed in microwave reaction inside cavity, bottom contacts with ultrasonic probe 24, electric blender 10 and thermopair 9 insertion reaction container 8 inside, electric blender 10 is connected with mechanical stirring digital display controller 11, reaction vessel 8 top is provided with the opening for feed 12 with inlet control valve 13, the discharge pipe 15 with discharging control valve 14 is provided with bottom reaction vessel 8, discharge pipe 15 exit end connects one-level stock chest 16 successively, secondary stock chest 17 and three grades of stock chests 18, one-level stock chest 16, secondary stock chest 17 and three grades of stock chests 18 are interconnected and are provided with filtering layer therebetween, wherein the pipe joint on magnetron 6 surface adopts series system to connect.
Below by reference to the accompanying drawings the specific embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.
Claims (4)
1. the method for a ultrasonic-microwave associating ammonia process leaching blast furnace dust, it is characterized in that concrete steps comprise: coordinate mixture by pure water preparation alkalescence, the ammonia concn in cooperation mixture is made to be 1.5 ~ 5mol/L, ammonium acetate concentration is 1.5 ~ 5mol/L, coordination leaching agent is formed after stirring, controlling total ammonia density in coordination leaching agent is 3 ~ 10mol/L, then blast furnace dust and coordination leaching agent are joined in reaction vessel leach by solid-to-liquid ratio 1:1 ~ 10g/ml priority, under opposing seal state, leaching process controls microwave output power is 300 ~ 1200W, ultrasonic power output is 600 ~ 1800W, temperature of reaction is 25 ~ 60 DEG C, stirring velocity is 100r/min ~ 600r/min, extraction time is 0.5h ~ 1.0h, then zinc lixiviating solution is obtained after after filtration-washing.
2. ultrasonic-microwave associating ammonia process according to claim 1 leaches the method for blast furnace dust, it is characterized in that: described blast furnace dust is the flue dust of iron-smelting blast furnace volatilization output.
3. the device of a ultrasonic-microwave associating ammonia process leaching blast furnace dust, it is characterized in that: comprise microwave Controlling System, ultrasonic wave Controlling System and leaching system, microwave Controlling System is primarily of microwave control panel and microwave reaction cavity composition, microwave control panel comprises micro-wave energy startup knob (1) that surface is arranged, microwave power adjusting knob (2), Multifunctional voltmeters (3) and temperature display meter (4), microwave reaction cavity comprises cavity, air draft duct (5), magnetron (6), lagging material (7) and thermopair (9), thermopair (9) is connected with microwave control panel by wire, lagging material (7) is positioned at inside cavity, magnetron (6) is positioned at containment portion and is uniformly distributed, air draft duct (5) is arranged on magnetron (6) and goes up and pass from magnetron (6) inside, ultrasonic wave Controlling System is primarily of ultrasonic wave control panel and interconnective ultrasonic generator composition, wherein ultrasonic wave control panel comprises ultrasonic wave operation warning lamp (19), ultrasonic power push button (20), ultrasonic power adjustment button (22) and the ultrasonic wave output parameter display instrument (23) that surface is arranged, and ultrasonic generator connects transverter (21), horn (25) and ultrasonic probe (24) successively, leaching system comprises reaction vessel (8), electric blender (10), mechanical stirring digital display controller (11), opening for feed (12), inlet control valve (13), discharging control valve (14), discharge pipe (15), one-level stock chest (16), secondary stock chest (17) and three grades of stock chests (18), reaction vessel (8) is placed in microwave reaction inside cavity, bottom contacts with ultrasonic probe (24), electric blender (10) and thermopair (9) insertion reaction container (8) inside, electric blender (10) is connected with mechanical stirring digital display controller (11), reaction vessel (8) top is provided with the opening for feed (12) with inlet control valve (13), reaction vessel (8) bottom is provided with the discharge pipe (15) with discharging control valve (14), discharge pipe (15) exit end connects one-level stock chest (16) successively, secondary stock chest (17) and three grades of stock chests (18), one-level stock chest (16), secondary stock chest (17) and three grades of stock chests (18) are interconnected and are provided with filtering layer therebetween.
4. ultrasonic-microwave associating ammonia process according to claim 3 leaches the device of blast furnace dust, it is characterized in that: the pipe joint on described magnetron (6) surface adopts series system to connect.
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