CN105803205B - A kind of energy-efficient secondary lead smelting technique - Google Patents
A kind of energy-efficient secondary lead smelting technique Download PDFInfo
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- CN105803205B CN105803205B CN201610157080.0A CN201610157080A CN105803205B CN 105803205 B CN105803205 B CN 105803205B CN 201610157080 A CN201610157080 A CN 201610157080A CN 105803205 B CN105803205 B CN 105803205B
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- 238000003723 Smelting Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000001301 oxygen Substances 0.000 claims abstract description 62
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 62
- 239000011505 plaster Substances 0.000 claims abstract description 27
- 238000002844 melting Methods 0.000 claims abstract description 26
- 230000008018 melting Effects 0.000 claims abstract description 26
- 239000003546 flue gas Substances 0.000 claims abstract description 22
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- 238000011084 recovery Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 8
- 230000004907 flux Effects 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 41
- 238000001914 filtration Methods 0.000 claims description 21
- 239000002893 slag Substances 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 17
- 229920000784 Nomex Polymers 0.000 claims description 16
- 239000004763 nomex Substances 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 15
- 239000003500 flue dust Substances 0.000 claims description 14
- 238000007670 refining Methods 0.000 claims description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 11
- 230000004927 fusion Effects 0.000 claims description 10
- 239000012752 auxiliary agent Substances 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 229910052718 tin Inorganic materials 0.000 claims description 6
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000005453 pelletization Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000005909 Kieselgur Substances 0.000 claims description 3
- 235000019738 Limestone Nutrition 0.000 claims description 3
- 240000004808 Saccharomyces cerevisiae Species 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- 229930013930 alkaloid Natural products 0.000 claims description 3
- 150000003797 alkaloid derivatives Chemical class 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000571 coke Substances 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 3
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 3
- 239000004611 light stabiliser Substances 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- 238000002803 maceration Methods 0.000 claims description 3
- 239000005543 nano-size silicon particle Substances 0.000 claims description 3
- IYDGMDWEHDFVQI-UHFFFAOYSA-N phosphoric acid;trioxotungsten Chemical compound O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O IYDGMDWEHDFVQI-UHFFFAOYSA-N 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- ODLHGICHYURWBS-LKONHMLTSA-N trappsol cyclo Chemical compound CC(O)COC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](COCC(C)O)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](COCC(C)O)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](COCC(C)O)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](COCC(C)O)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)COCC(O)C)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1COCC(C)O ODLHGICHYURWBS-LKONHMLTSA-N 0.000 claims description 3
- 235000013339 cereals Nutrition 0.000 claims 3
- 239000006071 cream Substances 0.000 claims 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims 2
- 238000000746 purification Methods 0.000 claims 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 1
- 229920006320 anionic starch Polymers 0.000 claims 1
- 235000013312 flour Nutrition 0.000 claims 1
- 239000010439 graphite Substances 0.000 claims 1
- 229910002804 graphite Inorganic materials 0.000 claims 1
- 230000000505 pernicious effect Effects 0.000 claims 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical group CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 6
- 238000010791 quenching Methods 0.000 abstract description 6
- 230000000171 quenching effect Effects 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 5
- 239000004568 cement Substances 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 229910052709 silver Inorganic materials 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000006477 desulfuration reaction Methods 0.000 abstract description 2
- 230000023556 desulfurization Effects 0.000 abstract description 2
- 229910052745 lead Inorganic materials 0.000 abstract description 2
- 239000002918 waste heat Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 1
- 238000007664 blowing Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 8
- 229910052681 coesite Inorganic materials 0.000 description 7
- 229910052906 cristobalite Inorganic materials 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- 229910052682 stishovite Inorganic materials 0.000 description 7
- 229910052905 tridymite Inorganic materials 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920004933 Terylene® Polymers 0.000 description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- PQTCMBYFWMFIGM-UHFFFAOYSA-N gold silver Chemical compound [Ag].[Au] PQTCMBYFWMFIGM-UHFFFAOYSA-N 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 239000004113 Sepiolite Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910052624 sepiolite Inorganic materials 0.000 description 2
- 235000019355 sepiolite Nutrition 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B13/00—Obtaining lead
- C22B13/02—Obtaining lead by dry processes
- C22B13/025—Recovery from waste materials
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of energy-efficient secondary lead smelting technique, its processing step is：Lead-acid accumulator is disassembled automatically after the lead plaster isolated and be carbonated and flux dispensing, carry out melting in feeding oxygen-enriched air smelting stove, produce lead bullion, lead skim and low concentration SO2Flue gas；SO2Flue gas gathered dust through waste heat recovery and dust arrester installation after send desulphurization system desulfurization qualified discharge；Lead skim is sold to cement plant for the general waste of vitrifying and does raw material；Lead bullion obtains selling outside lead bullion and the earth of positive pole by electrorefining；Realizing the system of the technique includes side blowing smelting furnace, apparatus for feeding, pulp water quenching equipment, cooling device, dust collection device and desulphurization plant.The present invention is improved by technological design and system, realizes Pb, Ag, Cu, Sb, and the clean and effective of Sn elements is reclaimed.
Description
Technical field
The present invention relates to secondary lead smelting technical field, and in particular to a kind of energy-efficient secondary lead smelting technique.
Background technology
At present, domestic reviver factory is about nearly 300, but up to ten thousand tons of scales is few, and small factory's average productive capacity is
1000 tons/year or so.Domestic reviver producer, production scale is small, and technical merit is low, and most producers use small-sized reflection
Stove is smelted, some small enterprises, and self-employed worker is even smelted using original native stove earth kiln.Specifically smelting process is：By lead metal with
Lead skim ash is mixed into kiln smelting, and substantial amounts of low temperature is that fusible lead metal and founding lead skim carry out pyrolytic semlting together,
Using bituminous coal as fuel in smelting process, anthracite and iron filings are added as dispensing, are fed intake about 2-4 tons per stove, average coal consumption 560,000
Gram mark coal/ton lead.These small scales, yield poorly, technique and the simple and crude reviver factory of environmental protection equipment, the rate of recovery of metallic lead only has
80%, comprehensive energy consumption is up to 600kg mark coal/ton lead, and recycling can not be obtained by producing in a large amount of wastes up to more than 8% leaded
Utilize, the non-ferrous metal 50% such as antimony is unrecovered to be utilized.The annual lead for having 100,000 tons of meters is lost in or is discharged into environment, seriously unrestrained
Take resource, consume the energy.
Some advanced countries regeneration plumbing has just moved towards production scale, technique cleaning in the eighties in last century in the world
The road of innoxious benign development.The technological process mainly used is：Old and useless battery → cracking and sorting → lead plaster desulfurization → rotary furnace
Smelting → refining → product.
China was extensive in recent years introduces or independent development Mechanical Crushing sorting old and useless battery technique and equipment, but for
The lead plaster of carbonating does not have highly desirable handling process, wherein having the rotary furnace of introduction because process stabilizing control difficulty does not succeed greatly
Example；Then single stove dimension-limited and cost are higher for the dual chamber energy-conservation circular furnace of domestic independent development；Using the side of direct refining lead
Blown converter then invests larger higher with process control needs, and energy consumption is larger.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of clean and effective energy-saving recycling lead smelting technology, realized
The high efficiente callback of Pb, Ag, Cu, Sb and Sn element, emission and operating environment all reach national requirements for environmental protection.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of energy-efficient secondary lead smelting technique, comprises the following steps:
(1) pelletized after carbonating lead plaster compound and flux being carried out into dispensing by disk pelletizing machine, obtain lead plaster
Grain, the humidity of lead plaster grain is 7~8%, and particle diameter is 30~100mm, and melting is carried out from charge door feeding oxygen-enriched air smelting stove；
Being added while charging has melting auxiliary agent, and the addition of wherein melting auxiliary agent accounts for the 1-2% of lead plaster grain weight；
The selection of wherein carbonating lead plaster compound should be such that the slag type of produced high-temperature fusion lead skim is calculated as in mass ratio：
Pb≤2%, Fe/SiO2=1~1.4%, Ca0/SiO2=0.4~0.8%；
(2) by the oxygen rich gas needed for oxygen-enriched air smelting stove by oxygen-enriched spray gun from the oxygen rich gas entrance of oxygen-enriched air smelting stove
Spray into the oxygen-enriched air smelting stove, the reaction zone temperature for controlling oxygen-enriched air smelting stove is 1200 DEG C -1250 DEG C；
(3) the carbonating lead plaster compound produces lead bullion, high-temperature fusion lead skim and contained after oxygen-enriched air smelting stove melting
Low concentration SO2Flue gas；
It is above-mentioned to contain low concentration SO2Flue gas cooled down through cooler after obtain one-level flue dust and one-level flue gas, wherein one-level cigarette
Pelletized again in dirt return to step (1) melting；One-level flue gas obtains two grades of flue dust and secondary smoke after being handled through sack cleaner,
Pelletized again in wherein two grades flue dust return to step (1) melting, secondary smoke send desulphurization system handle after again purified device it is net
Tail gas after change is directly discharged.
Above-mentioned lead bullion releases ingot casting by the lead mouthful of putting of the oxygen-enriched air smelting stove, and base-bullion passes through pyro-refining and electrolysis essence
Refining obtains enrichment copper dross slag, refining lead bullion and the earth of positive pole；
Lead, copper, tin metal are obtained to enrichment copper dross slag processing recovery, ANODE SLIME TREATMENT is reclaimed and obtains lead, antimony, silver gold
Category.
It is raw material that above-mentioned high-temperature fusion lead skim releases outer cement plant of selling after water quenching by the slag tap of oxygen-enriched air smelting stove；
The present invention also provides the equipment for realizing above-mentioned energy-efficient secondary lead smelting technique, including oxygen-enriched air smelting stove, charging
Equipment, pulp water quenching equipment, cooling device, dust collection device and desulphurization plant.
The oxygen-enriched air smelting stove is vertical rectangular configuration, and its top is provided with charge door, and front side bottom, which is provided with, puts lead mouthful；It is described
The sidepiece of oxygen-enriched air smelting stove is provided with oxygen rich gas entrance, and the oxygen-enriched spray gun is arranged on the oxygen rich gas of the oxygen-enriched air smelting stove
At entrance.
Described put is provided with ventilation equipment at lead mouthful and slag tap.
Clean room is provided with the purifier, the clean room bottom is provided with air inlet, and top is provided with gas outlet, described
Filtering Nomex is provided with clean room, gas filtration agent is impregnated with the filtering Nomex, to harmful gas in flue gas
Body is filtered, rear discharge up to standard；
The gas filtration agent is made up of the component of following weight：Magnetized water 500g, nano-ceramic powder 80g, anion
Starch 40g, AKD emulsion 30g, aroma-producing yeasts powder 60g, nano silicone diatomaceous earth 100g, hindered amine as light stabilizer 10g, O-phthalic
Dibutyl phthalate 30g, hydroxypropyl-β-cyclodextrin 15g, nano-silicon nitride 35g, HPMC 15g, tealeaves alkaloid 8g,
Waterborne conductive aquadag 15g.
Further to improve the physicochemical property that the terylene filters Nomex, Nomex need to be after gas filtration agent dipping again
Drying and processing, the speed that Nomex passes through gas filtration agent maceration extract is 0.5~2m/min, and drying is carried out using three-stage warm area
Drying, temperature requirement：The temperature of first warm area is 110-120 DEG C, 15 minutes time；The temperature of second warm area is 95-110 DEG C,
Time is 10 minutes；90-95 DEG C of the temperature of three-temperature-zone, the time is 15 minutes.Terylene filtering Nomex tool made from this method
There is good gas purifying effect, be particularly suitable for lead and smelt the tail gas produced so that the tail gas after discharge is right without any pollutant
Air environmental protection, to human body fanout free region.
The melting auxiliary agent is made up of the component of following weight：Rare earth oxide 50g, coke 300g, phosphotungstic acid 80g, stone
Lime stone 80g, iron ore 200g, sepiolite powder 70g, carborundum 40g, flyash 60g.
The beneficial effects of the invention are as follows：
(1) synthetical recovery effect is good, and environmental protection is good
The present invention directly enters stove, process due to the oxygen-enriched air smelting stove used, the lead plaster and flux of carbonating after coordinating granulation
Airborne dust is small, lead skim good fluidity, and the lead fume dirt of output seals conveying and returns to dispensing in whole production process, effectively prevent lead
The disperse of flue dust；Meanwhile, ventilation equipment are set putting lead mouthful and slag tap, to prevent the diffusion of lead steam.
The innovative point of the present invention is to enhance lead plaster process reaction using the high reaction temperature of oxygen-enriched air smelting stove, proposed most
Good slag type design, and form high temperature molten bath, it is ensured that lead skim is completely reacted, good fluidity, sedimentation separation are good, and Cu, Ag, Sb, Sn more hold
Easily enter in lead bullion, improve the synthetical recovery of various elements, comprehensive resource utilization rate reaches more than 90%, and lead recovery is more reachable
To more than 98.5%, the outer discharge capacity of the heavy metals such as lead is reduced, environmental protection is good.
(2) energy consumption is low
The high-temperature flue gas of oxygen-enriched air smelting stove output uses top stock column recovery waste heat in the present invention, and Charge Treatment amount is far high
In reverberatory furnace, efficiency of utilization is high, and energy-output ratio is accordingly greatly decreased.
(3) reduced investment
Compared with other domestic and international more advanced reviver recovery process, present device, technical software and factory building expense
Low, capital expenditure is saved, and identical production scale investment can save 40%~70%.
(4) production cost is low
Compared with secondary lead smelting technique more advanced both at home and abroad, because capital expenditure of the present invention is saved, amortization charge is low, together
The heat waster that the oxygen-enriched exhaust gas volumns of Shi Caiyong are few and exhaust temperature low strap is walked is small, and the technique rate of recovery simple to operation is high, therefore is produced into
This is low.
Brief description of the drawings
Fig. 1 is present invention process schematic flow sheet.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
As shown in figure 1, a kind of energy-efficient secondary lead smelting technique, comprises the following steps:
(1) disk pelletizing machine system is passed through after lead plaster compound and flux (quartzy flux) the progress dispensing of being carbonated
Grain, obtains lead plaster grain, the humidity of lead plaster grain is 7~8%, and particle diameter is 30~100mm, enters from charge door feeding oxygen-enriched air smelting stove
Row melting；Carbonating lead plaster and flux for using etc. is raw materials, and it is as follows by the main component of gross mass percentages：
Pb：60%；S：2.5%；Fe：15%；CaO：3.5%；Sb：0.6%；Sn：0.5%；Cu：1.6%；Ag：
0.02%；Surplus is SiO2；
The selection of wherein carbonating lead plaster compound should be such that the slag type of produced high-temperature fusion lead skim is calculated as in mass ratio：
Pb≤2%, Fe/SiO2=1~1.4%, Ca0/SiO2=0.4~0.8%；
(2) by the oxygen rich gas needed for oxygen-enriched air smelting stove by oxygen-enriched spray gun from the oxygen rich gas entrance of oxygen-enriched air smelting stove
Spray into the oxygen-enriched air smelting stove, the reaction zone temperature for controlling oxygen-enriched air smelting stove is 1200 DEG C -1250 DEG C；
(3) the carbonating lead plaster compound produces lead bullion, high-temperature fusion lead skim and contained after oxygen-enriched air smelting stove melting
Low concentration SO2Flue gas；
It is above-mentioned to contain low concentration SO2Flue gas cooled down through cooler after obtain one-level flue dust and one-level flue gas, wherein one-level cigarette
Pelletized again in dirt return to step (1) melting；One-level flue gas obtains two grades of flue dust and secondary smoke after being handled through sack cleaner,
Pelletized again in wherein two grades flue dust return to step (1) melting, secondary smoke send desulphurization system handle after again purified device it is net
Tail gas after change is directly discharged.
Above-mentioned lead bullion releases ingot casting by the lead mouthful of putting of the oxygen-enriched air smelting stove, and base-bullion passes through pyro-refining and electrolysis essence
Refining obtains enrichment copper dross slag, refining lead bullion and the earth of positive pole；
Lead, copper, tin metal are obtained to enrichment copper dross slag processing recovery, ANODE SLIME TREATMENT is reclaimed and obtains lead, antimony, silver gold
Category.
It is raw material that above-mentioned high-temperature fusion lead skim releases outer cement plant of selling after water quenching by the slag tap of oxygen-enriched air smelting stove.
Embodiment 2
A kind of energy-efficient secondary lead smelting technique, comprises the following steps:
(1) will carbonating lead plaster compound and flux in mass ratio 5:Pass through disk pelletizing machine system after 1 progress dispensing
Grain, obtains lead plaster grain, the humidity of lead plaster grain is 7~8%, and particle diameter is 30~100mm, enters from charge door feeding oxygen-enriched air smelting stove
Row melting；
Being added while charging has melting auxiliary agent, and the addition of wherein melting auxiliary agent accounts for the 1-2% of lead plaster grain weight；
The selection of wherein carbonating lead plaster compound should be such that the slag type of produced high-temperature fusion lead skim is calculated as in mass ratio：
Pb≤2%, Fe/SiO2=1~1.4%, Ca0/SiO2=0.4~0.8%；
(2) by the oxygen rich gas needed for oxygen-enriched air smelting stove by oxygen-enriched spray gun from the oxygen rich gas entrance of oxygen-enriched air smelting stove
Spray into the oxygen-enriched air smelting stove, the reaction zone temperature for controlling oxygen-enriched air smelting stove is 1200 DEG C -1250 DEG C；
(3) the carbonating lead plaster compound produces lead bullion, high-temperature fusion lead skim and contained after oxygen-enriched air smelting stove melting
Low concentration SO2Flue gas；
It is above-mentioned to contain low concentration SO2Flue gas cooled down through cooler after obtain one-level flue dust and one-level flue gas, wherein one-level cigarette
Pelletized again in dirt return to step (1) melting；One-level flue gas obtains two grades of flue dust and secondary smoke after being handled through sack cleaner,
Pelletized again in wherein two grades flue dust return to step (1) melting, secondary smoke send desulphurization system handle after again purified device it is net
Tail gas after change is directly discharged.
Above-mentioned lead bullion releases ingot casting by the lead mouthful of putting of the oxygen-enriched air smelting stove, and base-bullion passes through pyro-refining and electrolysis essence
Refining obtains enrichment copper dross slag, refining lead bullion and the earth of positive pole；
Lead, copper, tin metal are obtained to enrichment copper dross slag processing recovery, ANODE SLIME TREATMENT is reclaimed and obtains lead, antimony, silver gold
Category.
It is raw material that above-mentioned high-temperature fusion lead skim releases outer cement plant of selling after water quenching by the slag tap of oxygen-enriched air smelting stove；
The present invention also provides the equipment for realizing above-mentioned energy-efficient secondary lead smelting technique, including oxygen-enriched air smelting stove, charging
Equipment, pulp water quenching equipment, cooling device, dust collection device and desulphurization plant.
The oxygen-enriched air smelting stove is vertical rectangular configuration, and its top is provided with charge door, and front side bottom, which is provided with, puts lead mouthful；It is described
The sidepiece of oxygen-enriched air smelting stove is provided with oxygen rich gas entrance, and the oxygen-enriched spray gun is arranged on the oxygen rich gas of the oxygen-enriched air smelting stove
At entrance.
Described put is provided with ventilation equipment at lead mouthful and slag tap.
Clean room is provided with the purifier, the clean room bottom is provided with air inlet, and top is provided with gas outlet, described
Filtering Nomex is provided with clean room, gas filtration agent is impregnated with the filtering Nomex, to harmful gas in flue gas
Body is filtered, rear discharge up to standard；
The gas filtration agent is made up of the component of following weight：Magnetized water 500g, nano-ceramic powder 80g, anion
Starch 40g, AKD emulsion 30g, aroma-producing yeasts powder 60g, nano silicone diatomaceous earth 100g, hindered amine as light stabilizer 10g, O-phthalic
Dibutyl phthalate 30g, hydroxypropyl-β-cyclodextrin 15g, nano-silicon nitride 35g, HPMC 15g, tealeaves alkaloid 8g,
Waterborne conductive aquadag 15g.
Further to improve the physicochemical property that the terylene filters Nomex, Nomex need to be after gas filtration agent dipping again
Drying and processing, the speed that Nomex passes through gas filtration agent maceration extract is 0.5~2m/min, and drying is carried out using three-stage warm area
Drying, temperature requirement：The temperature of first warm area is 110-120 DEG C, 15 minutes time；The temperature of second warm area is 95-110 DEG C,
Time is 10 minutes；90-95 DEG C of the temperature of three-temperature-zone, the time is 15 minutes.Terylene filtering Nomex tool made from this method
There is good gas purifying effect, be particularly suitable for lead and smelt the tail gas produced so that the tail gas after discharge is right without any pollutant
Air environmental protection, to human body fanout free region.
The melting auxiliary agent is made up of the component of following weight：Rare earth oxide 50g, coke 300g, phosphotungstic acid 80g, stone
Lime stone 80g, iron ore 200g, sepiolite powder 70g, carborundum 40g, flyash 60g.
Technical indicator acquired by embodiment is as follows:
It should be understood by those skilled in the art that, the present invention is not limited to the above embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also have
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
By appended claims and its equivalent thereof.
Claims (3)
1. a kind of energy-efficient secondary lead smelting technique, it is characterised in that comprise the following steps:
(1) pelletized after carbonating lead plaster compound and flux being carried out into dispensing by disk pelletizing machine, obtain lead plaster grain, lead
The humidity of cream grain is 7~8%, and particle diameter is 30~100mm, and melting is carried out from charge door feeding oxygen-enriched air smelting stove；
(2) oxygen rich gas needed for oxygen-enriched air smelting stove is sprayed into by oxygen-enriched spray gun from the oxygen rich gas entrance of oxygen-enriched air smelting stove
In the oxygen-enriched air smelting stove, the reaction zone temperature for controlling oxygen-enriched air smelting stove is 1200 DEG C -1250 DEG C；
(3) the carbonating lead plaster compound produces lead bullion, high-temperature fusion lead skim and containing low dense after oxygen-enriched air smelting stove melting
Spend SO2Flue gas；
Above-mentioned lead bullion releases ingot casting by the lead mouthful of putting of the oxygen-enriched air smelting stove, and base-bullion is obtained by pyro-refining and electrorefining
To enrichment copper dross slag, refining lead bullion and the earth of positive pole；Lead, copper, tin metal are obtained to enrichment copper dross slag processing recovery, at the earth of positive pole
Reason recovery obtains lead, antimony, silver metal；
It is above-mentioned to contain low concentration SO2Flue gas cooled down through cooler after obtain one-level flue dust and one-level flue gas, wherein one-level flue dust is returned
Pelletized again in step (1) melting；One-level flue gas obtains two grades of flue dust and secondary smoke after being handled through sack cleaner, wherein two
Pelletized again in level flue dust return to step (1) melting, secondary smoke send desulphurization system handle after again after purified device purification
Tail gas is directly discharged；
Clean room is provided with the purifier, the clean room bottom is provided with air inlet, and top is provided with gas outlet, the purification
Interior is provided with filtering Nomex, is impregnated with gas filtration agent on the filtering Nomex, the pernicious gas in flue gas is entered
Row filtering, rear discharge up to standard；
Drying and processing, the speed that Nomex passes through gas filtration agent maceration extract again after the Nomex need to impregnate through gas filtration agent
For 0.5~2m/min, drying is dried using three-stage warm area, temperature requirement：The temperature of first warm area is 110-120 DEG C,
15 minutes time；The temperature of second warm area is 95-110 DEG C, and the time is 10 minutes；90-95 DEG C of the temperature of three-temperature-zone, the time is
15 minutes；
The gas filtration agent is made up of the component of following weight：Magnetized water 500g, nano-ceramic powder 80g, anionic starch
40g, AKD emulsion 30g, aroma-producing yeasts powder 60g, nano silicone diatomaceous earth 100g, hindered amine as light stabilizer 10g, phthalic acid two
It is butyl ester 30g, hydroxypropyl-β-cyclodextrin 15g, nano-silicon nitride 35g, HPMC 15g, tealeaves alkaloid 8g, aqueous
Conductive graphite cream 15g.
2. a kind of energy-efficient secondary lead smelting technique according to claim 1, it is characterised in that in step (1) charging
While add and have a melting auxiliary agent, the addition of wherein melting auxiliary agent accounts for the 1-2% of lead plaster grain weight.
3. a kind of energy-efficient secondary lead smelting technique according to claim 2, it is characterised in that the melting auxiliary agent by
The component of following weight is made：Rare earth oxide 50g, coke 300g, phosphotungstic acid 80g, lime stone 80g, iron ore 200g, Hai Pao
Stone flour 70g, carborundum 40g, flyash 60g.
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| CN106636645B (en) * | 2016-09-30 | 2018-04-20 | 刘振 | Regenerate lead plaster clean and effective processing method |
| CN110157922A (en) * | 2018-02-06 | 2019-08-23 | 贵州永鑫冶金科技有限公司 | A kind of energy-efficient secondary lead smelting technique |
| CN108715941A (en) * | 2018-05-29 | 2018-10-30 | 安徽睿知信信息科技有限公司 | A kind of smelting process of reviver |
| CN112159901A (en) * | 2020-09-04 | 2021-01-01 | 安徽华铂再生资源科技有限公司 | Secondary lead extraction process for waste lead storage battery |
| CN113957258A (en) * | 2021-10-23 | 2022-01-21 | 安徽省华鑫铅业集团有限公司 | Lead plaster smelting process based on oxygen-enriched side blowing |
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| CN1909281A (en) * | 2006-08-04 | 2007-02-07 | 河南豫光金铅股份有限公司 | Processing technology for slab lattice and plaster of lead-acid accumulator |
| CN203501819U (en) * | 2013-09-05 | 2014-03-26 | 山东金升有色集团有限公司 | Recycling device for smoke afterheat and dust generated from non-ferrous metal smelting |
| CN103695650B (en) * | 2013-12-25 | 2016-02-10 | 永州福嘉有色金属有限公司 | A kind of melting waste lead accumulator is containing the method for lead plaster mud |
| CN104087761A (en) * | 2014-07-28 | 2014-10-08 | 扬州市华翔有色金属有限公司 | Secondary lead smelting method |
| CN104474823B (en) * | 2014-11-27 | 2016-02-03 | 界首市东威塑业有限公司 | Tail gas environment-friendly processing unit in modified plastic particles granulation |
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Denomination of invention: An Efficient and Energy saving Regenerated Lead Smelting Process Granted publication date: 20171020 Pledgee: The development of small and medium-sized enterprises financing Company Limited by Guarantee Jieshou City Pledgor: ANHUI HUAXIN LEAD INDUSTRY GROUP Co.,Ltd. Registration number: Y2024980013510 |
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