CN103397191A - Method for comprehensively efficiently processing lead anode slime by using top-blown converter - Google Patents
Method for comprehensively efficiently processing lead anode slime by using top-blown converter Download PDFInfo
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Abstract
The invention discloses a method for comprehensively efficiently processing lead anode slime by using a top-blown converter. The method comprises processes of preparation of a mixed material, first reduction smelting, reduction for gold catching, secondary converting, and recovering of arsenic and antimony. The method specifically comprises: uniformly mixing lead anode slime according to dry weight, a slagging flux, a recycled material and a reducing agent to form the mixed material; spraying a fuel accounting for 1-10% by weight of the material into the molten pool of the top-blown converter, controlling melting temperature of the top-blown converter at 900 DEG C-1200 DEG C, after a complete reaction, discharging a slag layer formed by floating upward through a discharge outlet for recovery processing, wherein lead reduced by the reducing agent catches gold and silver and forms an expensive lead layer; performing further strengthening converting on the expensive lead layer, discharging through the discharge outlet for continuous refining; and cooling and dedusting the high-temperature flue dust via a waste-heat reclamation device to obtain an arsenic antimony flue dust. The method of the invention has the advantages of a show flow, low gold content and silver content in the slag, a long service life of the converter, substantial economical benefit, large processing amount, strong raw-material adaptability, high automation level, environmental protection, safe and the like.
Description
Technical field
The invention belongs to nonferrous metallurgy smelting technique field, be specifically related to a kind of method of utilizing top blast stove comprehensive high-efficiency to process lead anode slurry.
Background technology
In lead anode slurry, mainly contain the metallic elements such as gold and silver, bismuth, lead, copper, arsenic, antimony.At present, the processing of lead anode slurry has three kinds of modes basically: the one, and thermal process; The 2nd, full wet processing; The 3rd, pyrogenic process-wet method combined technique.The wet processing reagent consumption is large, and equipment corrosion is serious, maintenance load is large, liquid waste disposal flow process complexity, and labour productivity is low, and production cost is high, and technique is tediously long, is only suitable for small-scale production; Pyrogenic process-wet method combined process costs is high, and wastewater flow rate is large, exists simultaneously waste gas to reclaim difficulty, and the wet method slag is to return to the techniques such as the drying that needs while processing, fragmentation more complicated; The tradition thermal process is processed the anode sludge and is existed the concentration of precious metal degree low, and the return slag amount is large, and operator scheme is the discontinuous operation, and automatization level is low, and stove is airtight not tight, and environment protecting is poor, and energy consumption is higher, and the relatively full wet method of production cost and pyrogenic process-wet processing are less.
Abroad, comparatively advanced treatment process is that the Kaldo Furnace that Bo Lideng company develops is processed lead anode slurry, in a stove, completes the smelting processes such as melting, blowing.The advantage of this technique is that flow process is short, equipment is few, working cycle is short, good etc. to adaptability to raw material.The problems such as but there is the segmentation operation in this technique, and charging, the operation processes such as precious metals containing lead, slagging of putting can not complete continuously, and operation easier is large, and furnace campaign is short are not solved fully yet.In recent years, China has researched and developed oxygen-enriched bottom-blowing, methods such as side-blown melting etc. are processed lead anode slurry technique, but still has that the stove longevity is short, energy consumption is high, the gold and silver enrichment is not high, and the residue argentiferous is high, metal recovery rate is low, problem that environment protecting is poor etc.For this reason, develop a kind of simple process, treatment capacity is large, energy consumption is low, automatization level is high, the treatment process tool of the lead anode slurry of Environmental Safety is of great significance.
Summary of the invention
The object of the present invention is to provide a kind of simple process, treatment capacity is large, energy consumption is low, automatization level is high, Environmental Safety, be applicable to the high metal recovery rate lead anode slurry treatment process of top blast stove.
The object of the present invention is achieved like this, and the inventive method comprises that gold is caught in compound preparation, a retailoring, reduction, secondary blows, reclaims arsenic antimony operation, specifically comprises:
A, compound preparation: the ratio of slag former, returning charge, reductive agent and lead anode slurry weight ratio 100:1～10:1～50:1～15 evenly is mixed to get to mixture;
B, once blowing: compound is joined in the top blast stove from top blast stove charging opening, by weight of material, than 1～15% fuel, spray in top blast stove molten bath, controlling top blast stove smelting temperature is 900 ℃～1200 ℃, impel the metallic element such as copper in lead anode slurry, bismuth and slag former fully to react rear floating and form slag blanket, after top blast stove discharge outlet is discharged, recycle again;
Gold is caught in C, reduction: in stove, in molten mass, derive from after the elements such as lead in lead anode slurry, antimony are reduced agent and are reduced into liquid metal and capture gold and silver and sink to forming the precious metals containing lead layer;
D, secondary blowing: the precious metals containing lead layer, after further strengthening blowing, is emitted by top blast stove discharge outlet, directly send subsequent handling further refining;
E, recovery arsenic antimony: high-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
Utilization of the present invention adds the medium in molten bath to be oxygen-rich air, diesel oil, Sweet natural gas, coal gas or the fine coal mixture by different ratios by special spray gun, the adding of these materials both can be the lead anode slurry smelting process heat is provided, also play simultaneously reduction effect preferably, be conducive to reduce the slag argentiferous.But the present invention's continuously treating lead anode slime, have remarkable in economical benefits, advantages such as treatment capacity is large, smelting time is short, energy consumption is low, adaptability to raw material is strong, automatization level is high, Environmental Safety, is embodied in the following aspects:
1, the present invention is that continuous uniform is reinforced, and treatment capacity is large, and production efficiency is high, and recovery of gold and silver is high, and production cost is low.
2, top blast stove automatization level of the present invention is high, and easy handling is controlled; Good airproof performance, reduce environmental stress; To the strong adaptability of raw material, can process the raw material of heterogeneity and proportioning; Retailoring is the strengthening through metallurgy melting, and energy consumption is low, fuel economy; The stove long service life, increased Production Gain.
3, the slag former in the batching is soda ash, fluorite, quartzite, iron filings, sulfurous iron ore, lead bullion, galena or Wingdale, it is low with the metallic element combination rate in raw material, can reduce the fusing point of slag, propose the volatilization of high-arsenic antimony and to the enrichment of gold and silver, reach the separation and concentration of valuable metal, simultaneously because the technique slag rate is low, reduced the deslagging time, adding charging is continuously feeding, thereby has improved the processing power of lead anode slurry.
4, precious metals containing lead liquid is emitted from top blast stove discharge outlet, directly enters a minute silver stove, can save like this minute required fuel of silver stove refining precious metals containing lead, and the heat recycling, greatly reduce production cost.
The accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with embodiment, but never in any form the present invention is limited, and any conversion based on training centre of the present invention is done, all fall into protection domain of the present invention.
The inventive method comprises that gold is caught in compound preparation, a retailoring, reduction, secondary blows, reclaims arsenic antimony operation, specifically comprises:
The preparation of described compound is that the ratio in dry weight lead anode slurry, slag former, returning charge, reductive agent weight ratio 100:1～10:1～50:1～15 evenly is mixed to get mixture;
Described once blowing is that compound is joined in the top blast stove from top blast stove charging opening, by weight of material, than 1～15% fuel, spray in top blast stove molten bath, controlling top blast stove smelting temperature is 900 ℃～1200 ℃, impel the metallic element such as copper in lead anode slurry, bismuth and slag former fully to react rear floating and form slag blanket, after top blast stove discharge outlet is discharged, recycle again;
Gold is caught in described reduction, in molten mass, derives from stove after the elements such as lead in lead anode slurry, antimony are reduced agent and are reduced into liquid metal and capture gold and silver and sinks to forming the precious metals containing lead layer;
The blowing of described secondary be by the precious metals containing lead layer after further strengthening and blowing, by top blast stove discharge outlet, emitted, directly send subsequent handling further refining;
Described recovery arsenic antimony is that high-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
Described fuel is one or more in oxygen-rich air, diesel oil, Sweet natural gas, coal gas or fine coal, after fuel mix, by special spray gun, from top blast furnace roof section, directly sprays in top blast stove molten bath.
Described slag former is one or more in soda ash, fluorite, quartzite, iron filings, sulfurous iron ore, lead bullion, galena or Wingdale.
Described reductive agent is one or more in thin nut coke, bituminous coal, hard coal, clean fine coal, charcoal, wooden unit, waste agronomic crop, barren rock China ink (carbon element) electrode block or refinery coke.
Described returning charge is slag in the middle of produce in precious metal pyrometallurgical smelting process various, flue dust, silver-colored cadmia and other various argentiferous slag charges.
Na in described slag former soda ash
2CO
3Content is greater than 98%.
GaF in described slag former fluorite
2Content is greater than 95%.
Described reductive agent is thin nut coke or broken coal.
The preparation of described compound is that the ratio in dry weight lead anode slurry, slag former, returning charge, reductive agent weight ratio 100:1～10:1～50:1～15 evenly is mixed to get mixture.
Described compound adds continuously from top blast top filling mouth, and feed rate is 5～25t/h.
Described top blast stove is the round shape metallurgical furnace, and top blast stove top is provided with opening for feed, spray gun insert port and floss hole; Top blast stove bottom is provided with slag notch and puts plumbous mouthful.
Described special spray gun is: adopt stainless steel tube to make, being divided into is 3 layers, and central duct is fuel channel, and smelting required gas, liquid or powdered solid fuel can enter in molten bath by central duct; Skin is air or oxygen-rich air passage; Special spray gun end is equipped with spinning disk, can make the γ-ray emission rotation direction of passing through at a high speed in spray gun motion, has strengthened gas to the cooling of spray gun with to the stirring action of melt.
The oxygen concentration of described oxygen-rich air is 24～95%, and the add-on of oxygen-rich air is 10800～13000 Nm
3/ h.
Principle of work of the present invention and working process:
the present invention is by the lead anode slurry that will prepare, slag former, returning charge, the mixtures such as reductive agent, by rotary conveyor from top blast stove charging opening continuous uniform join in stove, needed oxygen-rich air in smelting process, diesel oil, Sweet natural gas, coal gas or fine coal etc., by special spray gun central duct, with whirlpool shape form, be directly injected in top blast stove high temperature molten bath, make to smelt the molten bath vigorous agitation, Gu strengthened gas in the molten bath--the abundant contact of liquid three-phase, improved the speed of chemical reaction, make furnace charge that strong fusing occur, oxidation, reduction, the materializing procedures such as slag making.In fusion process, temperature is controlled at 900 ℃～1050 ℃, and the metallic element such as the copper in lead anode slurry, bismuth and slag former fully react rear floating and form slag blanket, after top blast stove discharge outlet is discharged, recycle again; After being reduced agent and being reduced into liquid metal and capturing gold and silver, the elements such as the lead in lead anode slurry, antimony sink to forming the precious metals containing lead layer; After scum silica frost discharging in upper strata finishes, control top blast stove smelting temperature at 1050 ℃～1200 ℃, precious metals containing lead is further strengthened to blowing, after removing most of volatile matter, from the top blast stove, put plumbous mouthful and directly emit, give next step operation to continue refining.Flue gas, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
From special spray gun, add the materials such as oxygen-rich air, diesel oil, Sweet natural gas, coal gas or fine coal the top blast stove, both can be the lead anode slurry smelting process heat is provided, also play simultaneously reduction effect preferably, be conducive to reduce the slag argentiferous.The present invention not only is conducive to process lead anode slurry, also can process copper anode mud or other similar argentiferous material with this method simultaneously, and is wider to the subject range of raw material.
Embodiment 1
A, by Na
2CO
3Content is that 98.5% slag former soda ash, returning charge, reductive agent nut coke and lead anode slurry obtain mixture for 100:5:25:5 mixes by weight proportion; Mixture adds the top blast stove continuously from the charging opening of the top blast stove speed with 10t/h, top lance by oxygen-rich air and Sweet natural gas by the top blast stove sprays in top blast stove molten bath reacts with mixture, and the add-on of oxygen-rich air and Sweet natural gas is 12500Nm
3/ h, wherein the add-on of Sweet natural gas is 300Nm
3/ h, the temperature of controlling in top blast stove stove is 1050 ℃, when thickness of slag layer reaches 0.5～1.0m, from the slag-drip opening interruption of top blast stove, emits ingot casting in chute flows into mould; The elements such as the lead in lead anode slurry, arsenic, antimony sink to forming the precious metals containing lead layer after being reduced and capturing gold and silver, and precious metals containing lead, after further strengthening blowing 30min, is emitted by top blast stove discharge outlet, directly send the subsequent handling refining; High-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
The precious metals containing lead of this example output contains Ag 70.2%, and slag contains Ag<280g/t, Au<1 g/t, Ag direct yield 95.8%, the rate of recovery 99.5%, dust rate 4～10%.
Embodiment 2
A, by GaF
2Content is that 97% fluorite, returning charge, reductive agent broken coal and lead anode slurry obtain mixture for 100:8:20:6 mixes by weight proportion;
B, the mixture in steps A is added the top blast stove continuously from the charging opening of the top blast stove speed with 15t/h, oxygen-rich air and the diesel oil special spray gun by the top blast stove is sprayed in top blast stove molten bath, the add-on of oxygen-rich air is 12000Nm
3/ h, the add-on of diesel oil is 400L/h, the temperature of controlling in top blast stove stove is 1100 ℃, when thickness of slag layer reaches 0.5～1.0m, from the slag-drip opening interruption of top blast stove, emits ingot casting in chute flows into mould; The elements such as the lead in lead anode slurry, arsenic, antimony sink to forming the precious metals containing lead layer after being reduced and capturing gold and silver, and precious metals containing lead, after further strengthening blowing 40min, is emitted by top blast stove discharge outlet, directly send the subsequent handling refining; High-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
The precious metals containing lead of this example output contains Ag 72.2%, and slag contains Ag<260g/t, Au<1 g/t, Ag direct yield 96.8%, the rate of recovery 99.6%, dust rate 4～12%.
Embodiment 3
A, by Na
2CO
3Content is that 98.8% slag former soda ash, returning charge, reductive agent hard coal and lead anode slurry obtain mixture for 100:1:50:1 mixes by weight proportion; Mixture adds the top blast stove continuously from the charging opening of the top blast stove speed with 5t/h, and the top lance by oxygen-rich air and coal gas by the top blast stove sprays in top blast stove molten bath reacts with mixture, and the add-on of oxygen-rich air and coal gas is 10800Nm
3/ h, wherein the add-on of Sweet natural gas is 259Nm
3/ h, the temperature of controlling in top blast stove stove is 900 ℃, when thickness of slag layer reaches 0.5～1.0m, from the slag-drip opening interruption of top blast stove, emits ingot casting in chute flows into mould; The elements such as the lead in lead anode slurry, arsenic, antimony sink to forming the precious metals containing lead layer after being reduced and capturing gold and silver, and precious metals containing lead, after further strengthening blowing 30min, is emitted by top blast stove discharge outlet, directly send the subsequent handling refining; High-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
The precious metals containing lead of this example output contains Ag 73.2 %, and slag contains Ag<270 g/t, Au<1g/t, Ag direct yield 95.9%, the rate of recovery 99.2%, dust rate 4 ~ 8%.
Embodiment 4
A, by Na
2CO
3Content is that 98.1% slag former soda ash, returning charge, reductive agent charcoal and lead anode slurry obtain mixture for 100:10:1:15 mixes by weight proportion; Mixture adds the top blast stove continuously from the charging opening of the top blast stove speed with 25t/h, and the top lance by oxygen-rich air and fine coal by the top blast stove sprays in top blast stove molten bath reacts with mixture, and the add-on of oxygen-rich air and fine coal is 13000Nm
3/ h, wherein the add-on of Sweet natural gas is 320Nm
3/ h, the temperature of controlling in top blast stove stove is 1200 ℃, when thickness of slag layer reaches 0.5～1.0m, from the slag-drip opening interruption of top blast stove, emits ingot casting in chute flows into mould; The elements such as the lead in lead anode slurry, arsenic, antimony sink to forming the precious metals containing lead layer after being reduced and capturing gold and silver, and precious metals containing lead, after further strengthening blowing 40min, is emitted by top blast stove discharge outlet, directly send the subsequent handling refining; High-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
The precious metals containing lead of this example output contains Ag71.8 %, and slag contains Ag<256g/t, Au<1 g/t, Ag direct yield 96.2%, the rate of recovery 99.7%, dust rate 4 ~ 11 %.
Embodiment 5
A, by Na
2CO
3Content is that 99.5% slag former soda ash, returning charge, reductive agent bituminous coal and lead anode slurry obtain mixture for 100:3:15:10 mixes by weight proportion; Mixture adds the top blast stove continuously from the charging opening of the top blast stove speed with 15t/h, and the top lance by oxygen-rich air and fine coal by the top blast stove sprays in top blast stove molten bath reacts with mixture, and the add-on of oxygen-rich air and fine coal is 12350Nm
3/ h, wherein the add-on of Sweet natural gas is 286Nm
3/ h, the temperature of controlling in top blast stove stove is 950 ℃, when thickness of slag layer reaches 0.5～1.0m, from the slag-drip opening interruption of top blast stove, emits ingot casting in chute flows into mould; The elements such as the lead in lead anode slurry, arsenic, antimony sink to forming the precious metals containing lead layer after being reduced and capturing gold and silver, and precious metals containing lead, after further strengthening blowing 31min, is emitted by top stove discharge outlet, directly send the subsequent handling refining; High-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
The precious metals containing lead of this example output contains Ag 74.2%, and slag contains Ag<235g/t, Au<1 g/t, Ag direct yield 97.5%, the rate of recovery 99.6%, dust rate 5 ~ 8%.
Embodiment 6
A, by GaF
2Content is that 96% fluorite, returning charge, reductive agent broken coal and lead anode slurry obtain mixture for 100:6:20:8 mixes by weight proportion;
B, the mixture in steps A is added the top blast stove continuously from the charging opening of the top blast stove speed with 20t/h, oxygen-rich air and the diesel oil special spray gun by the top blast stove is sprayed in top blast stove molten bath, the add-on of oxygen-rich air is 12050Nm
3/ h, the add-on of diesel oil is 425L/h, the temperature of controlling in top blast stove stove is 1150 ℃, when thickness of slag layer reaches 0.5～1.0m, from the slag-drip opening interruption of top blast stove, emits ingot casting in chute flows into mould; The elements such as the lead in lead anode slurry, arsenic, antimony sink to forming the precious metals containing lead layer after being reduced and capturing gold and silver, and precious metals containing lead, after further strengthening blowing 38min, is emitted by top blast stove discharge outlet, directly send the subsequent handling refining; High-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
The precious metals containing lead of this example output contains Ag 71.8%, and slag contains Ag<213g/t, Au<1g/t, Ag direct yield 95.2%, the rate of recovery 99.4%, dust rate 3 ~ 9%.
Embodiment 7
A, by GaF
2Content is that 95.5% fluorite, returning charge, reductive agent refinery coke and lead anode slurry obtain mixture for 100:7:50:10 mixes by weight proportion;
B, the mixture in steps A is added the top blast stove continuously from the charging opening of the top blast stove speed with 23t/h, oxygen-rich air and the Sweet natural gas special spray gun by the top blast stove is sprayed in top blast stove molten bath, the add-on of oxygen-rich air is 11890Nm
3/ h, the add-on of Sweet natural gas is 405L/h, the temperature of controlling in top blast stove stove is 970 ℃, when thickness of slag layer reaches 0.5～1.0m, from the slag-drip opening interruption of top blast stove, emits ingot casting in chute flows into mould; The elements such as the lead in lead anode slurry, arsenic, antimony sink to forming the precious metals containing lead layer after being reduced and capturing gold and silver, and precious metals containing lead, after further strengthening blowing 35min, is emitted by top blast stove discharge outlet, directly send the subsequent handling refining; High-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
The precious metals containing lead of this example output contains Ag73.2%, and slag contains Ag<271g/t, Au<1 g/t, Ag direct yield 95.3%, the rate of recovery 99.6%, dust rate 3 ~ 10%.
Embodiment 8
A, by GaF
2Content is that 95.8% fluorite, returning charge, reductive agent barren rock China ink and lead anode slurry obtain mixture for 100:3:50:1 mixes by weight proportion;
B, the mixture in steps A is added the top blast stove continuously from the charging opening of the top blast stove speed with 26t/h, oxygen-rich air and the coal gas special spray gun by the top blast stove is sprayed in top blast stove molten bath, the add-on of oxygen-rich air is 12370Nm
3/ h, the add-on of coal gas is 458L/h, the temperature of controlling in top blast stove stove is 990 ℃, when thickness of slag layer reaches 0.5～1.0m, from the slag-drip opening interruption of top blast stove, emits ingot casting in chute flows into mould; The elements such as the lead in lead anode slurry, arsenic, antimony sink to forming the precious metals containing lead layer after being reduced and capturing gold and silver, and precious metals containing lead, after further strengthening blowing 46min, is emitted by top blast stove discharge outlet, directly send the subsequent handling refining; High-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
The precious metals containing lead of this example output contains Ag74.6%, and slag contains Ag<250g/t, Au<1g/t, Ag direct yield 95.7%, the rate of recovery 99.3%, dust rate 4 ~ 8%.
Embodiment 9
A, by Na
2CO
3Content is that 99.7% slag former soda ash, returning charge, reductive agent wooden unit and lead anode slurry obtain mixture for 100:10:15:10 mixes by weight proportion; Mixture adds the top blast stove continuously from the charging opening of the top blast stove speed with 22t/h, and the top lance by oxygen-rich air and fine coal by the top blast stove sprays in top blast stove molten bath reacts with mixture, and the add-on of oxygen-rich air and fine coal is 13450Nm
3/ h, wherein the add-on of fine coal is 322Nm
3/ h, the temperature of controlling in top blast stove stove is 998 ℃, when thickness of slag layer reaches 0.5～1.0m, from the slag-drip opening interruption of top blast stove, emits ingot casting in chute flows into mould; The elements such as the lead in lead anode slurry, arsenic, antimony sink to forming the precious metals containing lead layer after being reduced and capturing gold and silver, and precious metals containing lead, after further strengthening blowing 32min, is emitted by top stove discharge outlet, directly send the subsequent handling refining; High-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
The precious metals containing lead of this example output contains Ag73.6%, and slag contains Ag<240g/t, Au<1 g/t, Ag direct yield 95.2%, the rate of recovery 99.4%, dust rate 3 ~ 7%.
Embodiment 10
A, by Na
2CO
3Content is that 98.6% slag former soda ash, returning charge, reductive agent clean fine coal and lead anode slurry obtain mixture for 100:10:50:5 mixes by weight proportion; Mixture adds the top blast stove continuously from the charging opening of the top blast stove speed with 21t/h, and the top lance by oxygen-rich air and diesel oil by the top blast stove sprays in top blast stove molten bath reacts with mixture, and the add-on of oxygen-rich air and diesel oil is 13270Nm
3/ h, wherein the add-on of diesel oil is 316Nm
3/ h, the temperature of controlling in top blast stove stove is 1120 ℃, when thickness of slag layer reaches 0.5～1.0m, from the slag-drip opening interruption of top blast stove, emits ingot casting in chute flows into mould; The elements such as the lead in lead anode slurry, arsenic, antimony sink to forming the precious metals containing lead layer after being reduced and capturing gold and silver, and precious metals containing lead, after further strengthening blowing 42min, is emitted by top blast stove discharge outlet, directly send the subsequent handling refining; High-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtains As and Sb flue dust.
The precious metals containing lead of this example output contains Ag73.5%, and slag contains Ag<265g/t, Au<1g/t, Ag direct yield 95.8%, the rate of recovery 99.7%, dust rate 2 ~ 7%.
Claims (10)
1. a method of utilizing top blast stove comprehensive high-efficiency to process lead anode slurry, comprise that gold is caught in compound preparation, a retailoring, reduction, secondary blows, reclaims arsenic antimony operation, it is characterized in that specifically comprising:
A, compound preparation: the ratio in dry weight lead anode slurry, slag former, returning charge, reductive agent weight ratio 100:1～10:1～50:1～15 evenly is mixed to get mixture;
B, a retailoring: compound is joined in the top blast stove from top blast stove charging opening, by weight of material, than 1～15% fuel, spray in top blast stove molten bath, controlling top blast stove smelting temperature is 900 ℃～1200 ℃, impel the metallic element such as copper in lead anode slurry, bismuth and slag former fully to react rear floating and form slag blanket, after top blast stove discharge outlet is discharged, recycle again;
Gold is caught in C, reduction: in stove, in molten mass, derive from after the elements such as lead in lead anode slurry, antimony are reduced agent and are reduced into liquid metal and capture gold and silver and sink to forming the precious metals containing lead layer;
D, secondary blowing: the precious metals containing lead layer, after further strengthening blowing, is emitted by top blast stove discharge outlet, directly send subsequent handling further refining;
E, recovery arsenic antimony: high-temperature smoke is discharged by the smoke outlet of top blast stove, through waste-heat recovery device, after the cooling dedusting, obtain As and Sb flue dust.
2. the method for utilizing top blast stove comprehensive high-efficiency to process lead anode slurry according to claim 1, is characterized in that described fuel is one or more in oxygen-rich air, diesel oil, Sweet natural gas, coal gas or fine coal.
3. the method for utilizing top blast stove comprehensive high-efficiency to process lead anode slurry according to claim 1, is characterized in that described slag former is one or more in soda ash, fluorite, quartzite, iron filings, sulfurous iron ore, lead bullion, galena or Wingdale.
4. the method for utilizing top blast stove comprehensive high-efficiency to process lead anode slurry according to claim 1, is characterized in that described reductive agent is one or more in thin nut coke, bituminous coal, hard coal, clean fine coal, charcoal, wooden unit, waste agronomic crop, barren rock electrode ink piece or refinery coke.
5. the method for utilizing top blast stove comprehensive high-efficiency to process lead anode slurry according to claim 1, is characterized in that described returning charge is slag in the middle of produce in precious metal pyrometallurgical smelting process various, flue dust, silver-colored cadmia and other various argentiferous slag charges.
6. the method for utilizing top blast stove comprehensive high-efficiency to process lead anode slurry according to claim 1, is characterized in that the Na in described slag former soda ash
2CO
3Content is greater than 98%.
7. the method for utilizing top blast stove comprehensive high-efficiency to process lead anode slurry according to claim 1, is characterized in that the GaF in described slag former fluorite
2Content is greater than 95%.
8. the method for utilizing top blast stove comprehensive high-efficiency to process lead anode slurry according to claim 1, is characterized in that described compound preparation is that ratio in dry weight lead anode slurry, slag former, returning charge, reductive agent weight ratio 100:3～7:15～35:5～10 evenly is mixed to get mixture.
9. the method for utilizing top blast stove comprehensive high-efficiency to process lead anode slurry according to claim 1, is characterized in that described compound adds continuously from top blast top filling mouth, and feed rate is 5～25t/h.
10. the method for utilizing top blast stove comprehensive high-efficiency to process lead anode slurry according to claim 1, the oxygen concentration that it is characterized in that described oxygen-rich air is 24～95%, the add-on of oxygen-rich air is 10800～13000 Nm
3/ h.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104109763A (en) * | 2014-06-04 | 2014-10-22 | 昆明有色冶金设计研究院股份公司 | Technology for smelting difficultly-treated precious metal-containing material |
| CN104152702A (en) * | 2014-08-28 | 2014-11-19 | 郴州市金贵银业股份有限公司 | Method for smelting lead anode slime |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001316736A (en) * | 2000-03-03 | 2001-11-16 | Nippon Mining & Metals Co Ltd | Method for recovering silver |
| CN101892388A (en) * | 2010-06-30 | 2010-11-24 | 河南豫光金铅股份有限公司 | Method and device for continuously treating lead anode slime |
| CN102230085A (en) * | 2011-06-24 | 2011-11-02 | 济源市金利冶炼有限责任公司 | Method for oxygen-enriched side-blowing direct reduction smelting of anode mud |
| CN102925921A (en) * | 2012-09-07 | 2013-02-13 | 昆明理工大学 | Method of reinforcing top-blown smelting of lead |
-
2013
- 2013-08-05 CN CN201310336279.6A patent/CN103397191B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001316736A (en) * | 2000-03-03 | 2001-11-16 | Nippon Mining & Metals Co Ltd | Method for recovering silver |
| CN101892388A (en) * | 2010-06-30 | 2010-11-24 | 河南豫光金铅股份有限公司 | Method and device for continuously treating lead anode slime |
| CN102230085A (en) * | 2011-06-24 | 2011-11-02 | 济源市金利冶炼有限责任公司 | Method for oxygen-enriched side-blowing direct reduction smelting of anode mud |
| CN102925921A (en) * | 2012-09-07 | 2013-02-13 | 昆明理工大学 | Method of reinforcing top-blown smelting of lead |
Cited By (20)
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|---|---|---|---|---|
| US20160281193A1 (en) * | 2013-11-21 | 2016-09-29 | Outotec (Finland) Oy | Method for treating lead anode slime |
| US9650695B2 (en) * | 2013-11-21 | 2017-05-16 | Outotec (Finland) Oy | Method for treating lead anode slime |
| CN104109763B (en) * | 2014-06-04 | 2016-03-23 | 昆明有色冶金设计研究院股份公司 | A kind of difficult containing noble metal materials smelting technology |
| CN104109763A (en) * | 2014-06-04 | 2014-10-22 | 昆明有色冶金设计研究院股份公司 | Technology for smelting difficultly-treated precious metal-containing material |
| CN104152702B (en) * | 2014-08-28 | 2016-02-17 | 郴州市金贵银业股份有限公司 | A kind of method of smelting lead anode slurry |
| CN104152702A (en) * | 2014-08-28 | 2014-11-19 | 郴州市金贵银业股份有限公司 | Method for smelting lead anode slime |
| US10106868B2 (en) * | 2015-11-20 | 2018-10-23 | Yanggu Xiangguang Copper Co., Ltd. | Process for extracting noble metals from anode slime |
| CN105925805A (en) * | 2016-06-17 | 2016-09-07 | 中国恩菲工程技术有限公司 | Lead-zinc ore smelting method |
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| CN107058746B (en) * | 2017-04-27 | 2018-12-07 | 郴州市金贵银业股份有限公司 | A method of separating antimony from silver-colored smelting ash |
| CN107312935A (en) * | 2017-06-30 | 2017-11-03 | 郴州市金贵银业股份有限公司 | A kind of processing method of reducing slag after lead anode slurry melting |
| CN108004414A (en) * | 2017-12-08 | 2018-05-08 | 江西自立环保科技有限公司 | One kind processing noble metal method of material recycle containing low grade noble metal |
| CN111549233A (en) * | 2020-04-03 | 2020-08-18 | 金隆铜业有限公司 | Method for recovering lead and bismuth from copper anode mud smelting slag |
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| CN113512645A (en) * | 2021-07-13 | 2021-10-19 | 桂林金格电工电子材料科技有限公司 | Method for mixing and recycling silver tin oxide waste and silver graphite waste |
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| CN114438330B (en) * | 2021-12-31 | 2024-01-05 | 成都易态科技有限公司 | Resource grading recovery method for nonferrous metal smelting anode mud |
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