CN104894380A - Airtight oxygen-rich negative pressure efficient smelting furnace directional smelting clean production process - Google Patents
Airtight oxygen-rich negative pressure efficient smelting furnace directional smelting clean production process Download PDFInfo
- Publication number
- CN104894380A CN104894380A CN201510250028.5A CN201510250028A CN104894380A CN 104894380 A CN104894380 A CN 104894380A CN 201510250028 A CN201510250028 A CN 201510250028A CN 104894380 A CN104894380 A CN 104894380A
- Authority
- CN
- China
- Prior art keywords
- smelting furnace
- oxygen
- efficient
- slag
- smelting
- 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
- 238000003723 Smelting Methods 0.000 title claims abstract description 82
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000001301 oxygen Substances 0.000 title claims abstract description 49
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title abstract description 18
- 239000002893 slag Substances 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 24
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011133 lead Substances 0.000 claims abstract description 17
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 16
- 239000011593 sulfur Substances 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 14
- 239000003034 coal gas Substances 0.000 claims abstract description 9
- 239000003345 natural gas Substances 0.000 claims abstract description 9
- 239000003245 coal Substances 0.000 claims abstract description 8
- 238000004939 coking Methods 0.000 claims abstract description 8
- 229910052738 indium Inorganic materials 0.000 claims abstract description 8
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 7
- 239000011701 zinc Substances 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 6
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 6
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 239000000446 fuel Substances 0.000 claims abstract description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052737 gold Inorganic materials 0.000 claims abstract description 5
- 239000010931 gold Substances 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 229910052709 silver Inorganic materials 0.000 claims abstract description 5
- 239000004332 silver Substances 0.000 claims abstract description 5
- 239000011135 tin Substances 0.000 claims abstract description 5
- 229910052718 tin Inorganic materials 0.000 claims abstract description 5
- 239000000428 dust Substances 0.000 claims description 18
- 238000010309 melting process Methods 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 10
- 239000003546 flue gas Substances 0.000 claims description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 8
- 235000009508 confectionery Nutrition 0.000 claims description 8
- YZLDZQVPPLMHGJ-UHFFFAOYSA-N iron(2+);sulfane Chemical compound S.[Fe+2] YZLDZQVPPLMHGJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 8
- 229910052785 arsenic Inorganic materials 0.000 claims description 5
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005422 blasting Methods 0.000 claims description 5
- 229910052793 cadmium Inorganic materials 0.000 claims description 5
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000003500 flue dust Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 230000002829 reductive effect Effects 0.000 claims description 5
- 229910001152 Bi alloy Inorganic materials 0.000 claims description 4
- QQHJESKHUUVSIC-UHFFFAOYSA-N antimony lead Chemical compound [Sb].[Pb] QQHJESKHUUVSIC-UHFFFAOYSA-N 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 231100000701 toxic element Toxicity 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004615 ingredient Substances 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 239000004071 soot Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000000571 coke Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000010814 metallic waste Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009867 copper metallurgy Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000008844 regulatory mechanism Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 230000003068 static effect Effects 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an airtight oxygen-rich negative pressure efficient smelting furnace directional smelting clean production process. The process includes: adopting an efficient smelting furnace; feeding low sulfur complex smelting slag and fusion agent ingredients into the furnace through a feed inlet; using coal gas or natural gas and coking coal as the heat supply fuel of reducing smelting, injecting oxygen at the efficient smelting furnace bottom side into the furnace; and carrying out reducing smelting by the efficient smelting furnace so as to ultimately realize directional separation and enrichment of lead, copper, zinc, tin, antimony, bismuth, gold, silver, indium and other valuable metals in soot, slag, iron matte, crude metals and other products. The process provided by the invention realizes the real sense of efficient clean production, the production process is short, and project investment is saved.
Description
Technical field
The present invention relates to the technique of the complicated smelting slag resource comprehensive utilization of low-sulfur, be specifically related to the directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace.
Background technology
China is non-ferrous metals industry big country, and state in 2012 ten kinds of non-ferrous metal output reach 3,691 ten thousand tons, increase by 9.3% on a year-on-year basis.Wherein, refined matte, primary aluminum, lead, zinc output are respectively 6,060,000 tons, 1,988 ten thousand tons, 4,650,000 tons, 4,850,000 tons, all occupy first place in the world.But along with the fast development of China's non-ferrous metals industry, the reserves of Mineral resources increase the growth being unable to catch up with production and consumption.No matter be large short mineral products or Dominant Mineral Resources, its static guarantee time limit is the situation declined year by year, as copper mine was down to 32 years from 74 years, lead ore was down to 16 years from 34 years, zinc ore was down to 19 years from 37 years, and antimony ore was down to 9 years from 15 years, and nickel minerals was down to 56 years from 139 years.Non-ferrous metal energy consumption is reclaimed low from industrial waste and renewable resource; less investment, also can avoid solid refuse of endangering to store up the pollution of discharge to ecotope, realizes the minimizing of non-ferrous metal waste residue, resource utilization and innoxious; be conducive to environment protection, increase social benefit.In this context, in China's Developing Circulation Economy, reinforcement comprehensive utilization of resources, there is great strategic importance.
Production technique at present for Nonferrous Metals Smelting Slags synthetical recovery is equipped with shaft furnace, bath smelting furnace, tower smelting furnace, converter and electric furnace, main conventional retailoring of blast furnace production technique and bath smelting furnace production technique.Bath smelting furnace production technique is by the mode difference point bottom convertor, side-blown converter and the top blast stove that blast oxygen, although bath smelting furnace exists the advantages such as Production Flow Chart is short, combustion intensity is large, Environmental capacity is effective, productivity of furnace is high, sulfur dioxide in flue gas content is improved, bath smelting furnace exists that investment is large, production cost is high, operator not easily control, to entering the problems such as stove ingredient requirement is high, the cold slag of non-ferrous metal metallurgy secondary (under normal temperature) that is not suitable for processing low-sulfur.And current domestic built oxygen side blown converter (Wa Niukefu stove) is all undesirable at the complicated smelting slag of process low-sulfur, repeatedly abnormal start-stop stove causes larger secondary environmental pollution and production run cost.Traditional blast furnace smelting production technique has less investment, thermo-efficiency is high, siege ability is large, mature production technology stablizes easy handling, adapt to wide to entering slag material, but there is fusion process to need to consume metallurgical coke, the coke incomplete combustion of about 30%, the deficiencies such as higher, the loose row of energy consumption is more serious.Therefore according to current non-ferrous metal waste residue synthetical recovery present situation, considering the basis of above production technique equipment relative merits, in conjunction with practical condition and the process operation level of non-ferrous smelt enterprise, improvement upgrading and autonomous innovation are carried out to traditional blast furnace, develop the directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace, effectively can solve the low and secondary environmental pollution problem of the complicated smelting slag smelting recovery of current low-sulfur.
Summary of the invention
For existing smelt to produce in equipment technology exist: off-gas recovery weak effect is to the pollution of environment, and implementation cost is high, and the utilization of waste residue retailoring reaction enthalpy is not high, operating environment difference and the problem such as energy consumption is higher; Technical problem to be solved by this invention is to provide the directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace, can selective enrichment and reclaim valuable metal wherein, innoxious fixing in high-temperature slag of the toxic element such as arsenic, chromium, cadmium, thus the high-efficiency cleaning achieved truly is produced; The technological process of production is short, cost saving.
Technical scheme of the present invention is as follows:
The directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace, is characterized in that: adopt have fully-closed transmission feed system, oxygen-enriched blasting, totally-enclosed continuous negative pressure system, DCS Controlling System and and the efficient smelting furnace of wet desulphurisation system; Press group rear by Belt Conveying complicated for low-sulfur smelting slag and flux batching, send into from efficient smelting furnace opening for feed; Adopt coal gas or Sweet natural gas and coking coal as the fuel of heat supply of retailoring, pass into rear generation combustion reactions from bottom side, keep in-furnace temperature at 1050 ~ 1400 DEG C; Coal gas or Sweet natural gas and coking coal, simultaneously as reductive agent, carry out selective fixed to melting with the complicated smelting slag of described low-sulfur; Continuously the oxygen rich gas needed for melting is sprayed in stove from the oxygen entrance being located at efficient smelting furnace bottom side in retailoring process; Through efficient smelting furnace carry out retailoring obtain lead bullion, lead bismuth alloy, iron sulfonium, antimony lead, containing indium cigarette ash and high-grade matte, the rear liquid slag of reduction flows automatically to fuming furnace and carries out fuming process, dust arrester installation is entered, further synthetical recovery valuable metal wherein containing indium cigarette ash; After gathering dust, tail gas is undertaken processing arranging outward through chimney by wet desulphurisation system.
The present invention is selected by charge composition, smelting slag type the complicated smelting slag of low-sulfur, temperature gradient distribution, reducing atmosphere control and slag-matte-metal polyphase equilibrium mechanism optimization means, the reflex action of Effective Regulation object element, object element trend and partition ratio, fusion process, according to slag-iron sulfonium-crude metal polyphase equilibrium mechanism, determines that valuable metal is at each phase partitioning behavior and regulatory mechanism.Compared with the prior art, tool of the present invention has the following advantages:
(1) environment protection is good
Smelting process in the present invention is carried out in airtight stove, and feed inlet and outlet, and smoke outlet, post gather dust and technique is gathered dust is airtight negative pressure, effectively prevent SO
2the loose row's effusion of inorganization of flue gas and dust, all flue gases enter after pulse bag gathers dust through airtight negative pressure, then through the process of wet type desulfurizing facility, exhaust emissions meets national requirements for environmental protection completely, there is the deficiency of environmental protection aspect in thorough solution traditional drum wind furnace, improve post operation environment simultaneously;
(2) stability and high efficiency can be realized produce
Oxygen is sprayed into by closed oxygen-enriched sub-pressure high-efficient smelting furnace bottom side in the present invention, increase reaction atmosphere and Smelting Effect, adopt DCS system controls the furnace temperature of material melting reaction in stove, flue gas enters bagroom flue-gas temperature and the condition such as charge composition, reaction times to valuable metal directional separation effect in the complicated smelting slag of low-sulfur, the charging system of smelting furnace adopts airtight belt Automatic Conveying, reduce manual operation intensity, handling good, guarantee that realizing stability and high efficiency produces, and efficiently solves the drawback that oxygen side blown converter is intermittently produced;
(3) energy consumption is low
In the present invention, closed oxygen-enriched sub-pressure high-efficient smelting furnace is improved and autonomous innovation blast furnace, adopt coal gas or Sweet natural gas retailoring, coal gas or Sweet natural gas and coking coal are as thermit powder and reductive agent, pass into the reducing gas burning completely of appropriate oxygen and unreacted to ensure system continuous heat supply, relative traditional drum wind furnace energy-saving effect is remarkable;
(4) production cost is low
In the present invention, the advantage that equipment has fully drawn oxygen enriched molten bath smelting furnace and traditional drum wind furnace produced by closed oxygen-enriched sub-pressure high-efficient smelting furnace, abandon respective deficiency, by selective fixed to melting, high efficiency separation extracts each valuable metal in the complicated smelting slag of low-sulfur, so relative oxygen enrichment bath smelting furnace and traditional drum wind furnace, production cost is relatively lower;
(5) reduced investment
Compared with producing equipment with Nonferrous Metals Smelting Slags resource comprehensive utilization more advanced both at home and abroad, the present invention can cost saving greatly, and equipment and process is workable, practical.
Accompanying drawing explanation
Fig. 1 is directed melting technology schema of the present invention.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, but be not intended to limit the present invention.
The directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace, adopt have fully-closed transmission feed system, oxygen-enriched blasting, totally-enclosed continuous negative pressure system, DCS Controlling System and and the efficient smelting furnace of wet desulphurisation system; By rear by Belt Conveying for complicated for low-sulfur smelting slag, slag, coke and slag former batching pressure group, send into from efficient smelting furnace opening for feed; Adopt coal gas or Sweet natural gas and coking coal as the fuel of heat supply of retailoring, pass into rear generation combustion reactions from bottom side, control to keep in-furnace temperature at 1050 ~ 1400 DEG C; Coal gas or Sweet natural gas and coking coal, simultaneously as reductive agent, carry out selective fixed to melting with the complicated smelting slag of described low-sulfur; Continuously the oxygen rich gas needed for melting is sprayed in stove from the oxygen entrance being located at efficient smelting furnace bottom side in retailoring process; Carry out retailoring through efficient smelting furnace and obtain slag, lead bullion, lead bismuth alloy, iron sulfonium, antimony lead, flue dust and high-grade matte; After reduction, liquid slag, antimony lead return batching; Described flue dust enters dust chamber, bag collection device, further synthetical recovery wherein containing indium cigarette ash for sale; After gathering dust, flue gas is undertaken processing arranging outward through chimney by wet desulphurization tower; Described lead bullion is as electric leady raw materials; Described iron sulfonium is as iron-smelting raw material; Described lead bismuth alloy is as carrying bismuth raw material; Described high-grade matte is as copper metallurgy raw material.
Further, above-mentioned selective fixed be that in furnace charge, lead, bismuth, antimony, tin, gold and silver enter metallographic phase to melting; Zinc, cadmium, arsenic enter slag; Copper then enters matte; Realize directional separation respectively in flue dust, slag, iron sulfonium, crude metal product of lead, copper, zinc, tin, antimony, bismuth, gold and silver and indium valuable metal and enrichment, and arsenic, chromium, innoxious in high-temperature slag of cadmium toxic element are fixed; For follow-up valuable metal resource utilization and the minimizing of heavy metal metallurgical slag and harmless treatment create favorable conditions.
Further, above-mentioned oxygen-enriched blasting is the oxygen of working concentration 90 ~ 98%, and oxygen enriched blast amount is 6000 ~ 8000Nm
3/ h; The effect of oxygen enrichment is: strengthen reducing atmosphere, intensified smelting effect and improve the rate of recovery.
Further, above-mentioned totally-enclosed continuous negative pressure is all charging and discharging mouths, smoke outlet, and gather dust in post and technique is gathered dust as airtight continuous negative pressure: gathering dust in post, negative pressure is 0.35 ~ 0.55kPa, technique is gathered dust, and tiny structure is 0.05 ~ 0.15kPa; The effect of airtight continuous negative pressure is:
, effectively reduce uncontrollable discharge, prevent flue gas during smelting to the pollution of surrounding enviroment;
, the gas that the non-participating produced in smelting furnace is reacted is taken away in time, improve the smelting efficiency of slag charge in stove.
Further, above-mentioned fully-closed transmission feed system adopts airtight belt Automatic Conveying in the charging system of efficient smelting furnace, fill process and the external world completely isolated, prevent dust from externally discharging, reduce manipulation strength and enhance productivity.
Further, above-mentioned efficient smelting furnace bottom side is provided with oxygen enrichment entrance, and left end bottom is provided with siphon lead taphole.
Further, above-mentioned DCS Controlling System will have field control station (I/O station), data communication system, human-machine interface unit (operator station OPS, engineer station ENS), rack, power supply composition; System provides the flue-gas temperature data-interface of fuel of heat supply amount, charge composition, oxygen enriched blast amount, reaction times, the complicated smelting slag of low-sulfur melting reaction furnace temperature, crude metal product temperatur, slag temperature, iron sulfonium temperature and bagroom in efficient smelting furnace.
Further, the top of above-mentioned efficient smelting furnace unprecedentedly partly passes into appropriate oxygen and unreacted reducing gas burning completely, to ensure the further heat supply of system.
Claims (8)
1. the directed melting process for cleanly preparing of closed oxygen-enriched sub-pressure high-efficient smelting furnace, is characterized in that: adopt have fully-closed transmission feed system, oxygen-enriched blasting, totally-enclosed continuous negative pressure system, DCS Controlling System and and the efficient smelting furnace of wet desulphurisation system; Press group rear by Belt Conveying complicated for low-sulfur smelting slag and flux batching, send into from efficient smelting furnace opening for feed; Adopt coal gas or Sweet natural gas and coking coal as the fuel of heat supply of retailoring, pass into rear generation combustion reactions from bottom side, keep in-furnace temperature at 1050 ~ 1400 DEG C; Coal gas or Sweet natural gas and coking coal, simultaneously as reductive agent, carry out selective fixed to melting with the complicated smelting slag of described low-sulfur; Continuously the oxygen rich gas needed for melting is sprayed in stove from the oxygen entrance being located at efficient smelting furnace bottom side in retailoring process; Through efficient smelting furnace carry out retailoring obtain lead bullion, lead bismuth alloy, iron sulfonium, antimony lead, containing indium cigarette ash and high-grade matte, the rear liquid slag of reduction flows automatically to fuming furnace and carries out fuming process, dust arrester installation is entered, further synthetical recovery valuable metal wherein containing indium cigarette ash; After gathering dust, tail gas is undertaken processing arranging outward through chimney by wet desulphurisation system.
2. the directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace according to claim 1, is characterized in that: described selective fixed be that in furnace charge, lead, bismuth, antimony, tin, gold and silver enter metallographic phase to melting; Zinc, cadmium, arsenic enter slag; Copper then enters matte; Realize directional separation respectively in flue dust, slag, iron sulfonium, crude metal product of lead, copper, zinc, tin, antimony, bismuth, gold and silver and indium valuable metal and enrichment, and arsenic, chromium, innoxious in high-temperature slag of cadmium toxic element are fixed; .
3. the directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace according to claim 1, it is characterized in that: described oxygen-enriched blasting is the oxygen of working concentration 90 ~ 98%, oxygen enriched blast amount is 6000 ~ 8000Nm3/h.
4. the directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace according to claim 1, it is characterized in that: described totally-enclosed continuous negative pressure is all charging and discharging mouths, smoke outlet, gather dust in post and technique is gathered dust as airtight continuous negative pressure: gathering dust in post, negative pressure is 0.35 ~ 0.55kPa, technique is gathered dust, and tiny structure is 0.05 ~ 0.15kPa.
5. the directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace according to claim 1, it is characterized in that: described fully-closed transmission feed system adopts airtight belt Automatic Conveying in the charging system of efficient smelting furnace, fill process and the external world completely isolated.
6. the directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace according to claim 1, is characterized in that: be provided with oxygen enrichment entrance in efficient smelting furnace bottom side, left end bottom is provided with siphon lead taphole.
7. the directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace according to claim 1, is characterized in that: described DCS Controlling System will be made up of field control station, data communication system, human-machine interface unit, rack, power supply; System provides the flue-gas temperature data-interface of fuel of heat supply amount, charge composition, oxygen enriched blast amount, reaction times, the complicated smelting slag of low-sulfur melting reaction furnace temperature, crude metal product temperatur, slag temperature, iron sulfonium temperature and bagroom in efficient smelting furnace.
8. the directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace according to claim 1, it is characterized in that: on the top of described efficient smelting furnace, unprecedentedly part passes into appropriate oxygen and unreacted reducing gas burning completely, to ensure the further heat supply of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250028.5A CN104894380B (en) | 2015-05-18 | 2015-05-18 | The directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250028.5A CN104894380B (en) | 2015-05-18 | 2015-05-18 | The directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104894380A true CN104894380A (en) | 2015-09-09 |
| CN104894380B CN104894380B (en) | 2016-04-13 |
Family
ID=54027330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510250028.5A Active CN104894380B (en) | 2015-05-18 | 2015-05-18 | The directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104894380B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086461A (en) * | 2016-08-18 | 2016-11-09 | 紫金矿业集团股份有限公司 | A kind of method of Copper making process slag making arsenic removal |
| CN108950236A (en) * | 2018-08-03 | 2018-12-07 | 个旧市沙甸永和冶炼厂 | A kind of technique of clean and effective processing lead containing sludge |
| CN109385521A (en) * | 2018-12-21 | 2019-02-26 | 河池市生富冶炼有限责任公司 | A kind of production technology of lead antimony composite ore oxygen enriched molten bath low-temperature oxidation melting |
| CN109852818A (en) * | 2019-04-02 | 2019-06-07 | 柳州光华科技有限公司 | A kind of continuous side-blown tin-making process |
| CN111721118A (en) * | 2019-03-21 | 2020-09-29 | 个旧市锦星锑业有限公司 | Method for charging and discharging oxygen-enriched intensified smelting furnace molten pool |
| WO2021208357A1 (en) * | 2020-04-15 | 2021-10-21 | 云南锡业股份有限公司铜业分公司 | System and method for efficient recovery of valuable metals from tin secondary raw materials |
| CN114525410A (en) * | 2022-02-18 | 2022-05-24 | 林西县富强金属有限公司 | Process for recovering low-grade valuable metal from ash generated in metal smelting |
| GB2601212A (en) * | 2020-04-15 | 2022-05-25 | Copper Branch Company Of Yunnan Tin Company Ltd | System and method for efficient recovery of valuable metals from tin secondary raw materials |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4514223A (en) * | 1983-05-02 | 1985-04-30 | Mitsubishi Kinzoku Kabushiki Kaisha | Continuous direct process of lead smelting |
| CN102031393A (en) * | 2010-11-28 | 2011-04-27 | 郴州市金贵银业股份有限公司 | Continuous lead smelting clean production process |
| CN103409615A (en) * | 2013-07-29 | 2013-11-27 | 青岛智邦炉窑设计研究有限公司 | Mineral roasting reduction device and application method thereof |
| CN104004916A (en) * | 2014-05-27 | 2014-08-27 | 东营方圆有色金属有限公司 | Copper smelting ash leaching residue bottom blowing reduction smelting multi-metal trapping process |
-
2015
- 2015-05-18 CN CN201510250028.5A patent/CN104894380B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4514223A (en) * | 1983-05-02 | 1985-04-30 | Mitsubishi Kinzoku Kabushiki Kaisha | Continuous direct process of lead smelting |
| CN102031393A (en) * | 2010-11-28 | 2011-04-27 | 郴州市金贵银业股份有限公司 | Continuous lead smelting clean production process |
| CN103409615A (en) * | 2013-07-29 | 2013-11-27 | 青岛智邦炉窑设计研究有限公司 | Mineral roasting reduction device and application method thereof |
| CN104004916A (en) * | 2014-05-27 | 2014-08-27 | 东营方圆有色金属有限公司 | Copper smelting ash leaching residue bottom blowing reduction smelting multi-metal trapping process |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086461A (en) * | 2016-08-18 | 2016-11-09 | 紫金矿业集团股份有限公司 | A kind of method of Copper making process slag making arsenic removal |
| CN108950236A (en) * | 2018-08-03 | 2018-12-07 | 个旧市沙甸永和冶炼厂 | A kind of technique of clean and effective processing lead containing sludge |
| CN109385521A (en) * | 2018-12-21 | 2019-02-26 | 河池市生富冶炼有限责任公司 | A kind of production technology of lead antimony composite ore oxygen enriched molten bath low-temperature oxidation melting |
| CN111721118A (en) * | 2019-03-21 | 2020-09-29 | 个旧市锦星锑业有限公司 | Method for charging and discharging oxygen-enriched intensified smelting furnace molten pool |
| CN109852818A (en) * | 2019-04-02 | 2019-06-07 | 柳州光华科技有限公司 | A kind of continuous side-blown tin-making process |
| WO2021208357A1 (en) * | 2020-04-15 | 2021-10-21 | 云南锡业股份有限公司铜业分公司 | System and method for efficient recovery of valuable metals from tin secondary raw materials |
| GB2601212A (en) * | 2020-04-15 | 2022-05-25 | Copper Branch Company Of Yunnan Tin Company Ltd | System and method for efficient recovery of valuable metals from tin secondary raw materials |
| GB2601212B (en) * | 2020-04-15 | 2024-03-13 | Copper Branch Company Of Yunnan Tin Company Ltd | A system applied to efficiently recycle valuable metals from secondary raw materials of tin and its method |
| CN114525410A (en) * | 2022-02-18 | 2022-05-24 | 林西县富强金属有限公司 | Process for recovering low-grade valuable metal from ash generated in metal smelting |
| CN114525410B (en) * | 2022-02-18 | 2024-04-02 | 林西县富强金属有限公司 | Process for recycling low-grade valuable metals from ash of metal smelting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104894380B (en) | 2016-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104894380B (en) | The directed melting process for cleanly preparing of a kind of closed oxygen-enriched sub-pressure high-efficient smelting furnace | |
| CN103421955B (en) | Zinc leaching slag treatment method | |
| CN103993176B (en) | Oxygen-enriched top blowing melting-liquid high lead dross side-blown direct-reduction refining splicer skill | |
| CN102634674A (en) | Oxygen bottom-blowing smelting and liquid-state high-lead slag side-blowing direct reduction process | |
| CN104789755B (en) | A kind of use high sulphur manganese mine clean and effective produces the method and device of manganese metal | |
| CN101705367A (en) | Copper nickel smelting process with oxygen-enriched side-blowing bath smelting method | |
| CN106399713A (en) | Oxygen enrichment bottom blowing copper smelting process | |
| CN104498731B (en) | A kind of method and apparatus of the solid sulfur melting of oxygen-enriched side-blowing low-temperature alkali | |
| CN103993183B (en) | Oxygen-enriched top blowing melting-liquid high lead dross side-blown direct-reduction refines plumbous equipment | |
| CN102031393A (en) | Continuous lead smelting clean production process | |
| CN106319242A (en) | Method for continuously and directly smelting lead | |
| CN104946899B (en) | Edge transmission top-blown converter and depleted sedimentation furnace combined lead dross treatment method | |
| CN111321301A (en) | System and method for efficiently recovering valuable metals in tin secondary raw materials | |
| CN103451444A (en) | Device and technology for smelting and processing secondary lead materials to generate lead bullion by adopting bottom blowing furnace hearth | |
| CN105506299B (en) | A kind of low-grade reviver smelting slag fuming furnace processing system and method | |
| CN111322869A (en) | Smelting furnace for continuously smelting crude tin from tin concentrate and continuously fuming furnace slag and smelting method | |
| CN103334008B (en) | A kind of smelting process for sour mud process | |
| CN203820871U (en) | Lead smelting equipment adopting oxygen enrichment top-blown smelting and liquid high-lead slag side-blown direct reduction | |
| CN202415653U (en) | Smelting device for antimony-zinc-lead-containing concentrate | |
| CN104611574A (en) | Method for refining scrap copper | |
| CN203890418U (en) | One-step copper smelting device | |
| CN212199376U (en) | System for efficiently recovering valuable metals in tin secondary raw materials | |
| CN202576523U (en) | Energy-saving and environment-friendly smelting furnace | |
| CN1325672C (en) | Lead smelting method and apparatus implementing the same | |
| CN202081154U (en) | Oxygen side-blowing continuous converting furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Shengnan Inventor after: Chen Yongming Inventor after: Zhang Yifan Inventor after: Zhang Xiaoke Inventor before: Zhang Shengnan Inventor before: Chen Yongming Inventor before: Li Laihua Inventor before: Zhang Xiaoke Inventor before: Deng Jianzhi Inventor before: Cai Rongfeng Inventor before: Chen Zhichun |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210726 Address after: 410000 room 2805, building 3, South Chutian Zhongyuan, Xingsha Avenue West, quantang street, Changsha Economic and Technological Development Zone, Hunan Province Patentee after: Changsha Jinyao Environmental Protection Technology Co.,Ltd. Address before: 423000 No. 1, Fucheng Avenue, bailutang Town, Suxian District, Chenzhou City, Hunan Province (Jingui company) Patentee before: Zhang Shengnan |
|
| TR01 | Transfer of patent right |