CN202297742U - Device for direct reduction smelting of molten liquid lead-containing zinc slag with blowing - Google Patents
Device for direct reduction smelting of molten liquid lead-containing zinc slag with blowing Download PDFInfo
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- CN202297742U CN202297742U CN2011203481895U CN201120348189U CN202297742U CN 202297742 U CN202297742 U CN 202297742U CN 2011203481895 U CN2011203481895 U CN 2011203481895U CN 201120348189 U CN201120348189 U CN 201120348189U CN 202297742 U CN202297742 U CN 202297742U
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- lead
- retailoring
- slag
- reduction smelting
- electric stove
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Abstract
The utility model discloses a device that molten liquid leaded zinc sediment direct reduction smelted, it includes reduction smelting electric stove (1) the top of reduction smelting electric stove (1) is equipped with feed inlet (2) and flue (7) the side of reduction smelting electric stove (1) is equipped with slag chute (2), with one side that slag chute (2) is relative is equipped with matte mouth (5) and row's cinder notch (6), with the adjacent one side in slag chute (2) is equipped with puts plumbous mouthful (4), and still be equipped with one or more gas spouts blow mouthful (3) on reduction smelting electric stove (1). The device of the utility model can realize high-strength smelting, and has short and continuous flow; energy is saved; the capacity is high; the resources are efficiently utilized; environmental protection; safety, good labor hygiene and safe production. The comprehensive recovery of valuable elements in the molten lead-containing slag is realized, and the recovery rate of lead and associated valuable metals such as copper, zinc and noble metals is higher.
Description
Technical field
The utility model relates to the smelting device of the leaded zinc oxidation sludge of a kind of fusion, the device of the direct retailoring of the leaded cadmia of particularly a kind of fused solution.
Background technology
Lead is the important foundation starting material of development national economy, and China is maximum plumbous producing country in the whole world and the second plumbous country of consumption that is only second to the U.S..Plumbous smelting process can simplified summary be traditional method and two big types of direct lead smelting process.The tradition method is sintering-blast-furnace method (comprising sinter machine, sintering pot, sintering pan etc.); Directly lead smelting process is promptly cancelled the concentrate of lead sulfide ore sintering process, and the production of sperm ore deposit is directly into the method for stove melting.Traditional for many years sintering-blast-furnace method is plumbous main working method always, even up till now, its output still accounts for plumbous more than 60% of output in the world.But along with the mankind to the improving constantly of environmental protection, energy-conservation understanding and requirement, show outstanding the shortcoming day of sintering-blast-furnace method, newly-built plumbous smeltery has mostly adopted direct refining splicer to plant and has produced.
Directly refining can reduce the primary reformer method along method, the pause kaldo process etc. of company's exploitation of QSL method, the Sweden's Pohle that mainly contains basic husband's Saite method and Wa Niukefufa, the exploitation of German LURGI of FSU's exploitation, the smelting process of completion lead bullion in a stove.Two sections oven processes have the oxygen top blown submergence smelting process (claiming Australia Si Maitefa, Ai Safa again) of Australia's exploitation; And China (claims oxygen bottom-blowing method-SKS), in two stoves, accomplish the lead bullion production process again in mountain, the mouth of a river method of the eighties in last century exploitation.
Main Shuiko mountain method of smelt lead, the oxygen top blown submergence smelting process (Australia Si Maitefa, Ai Safa) of adopting of the plumbous technology of the existing refining of China, especially Shuiko mountain method of smelt lead is the most general.
Shuiko mountain method of smelt lead is claimed the oxygen bottom-blowing method again, is that China develops on the basis of using for reference the QSL method eighties in last century.The reactor drum that uses has kept the oxidation panel of QSL method, and has cancelled reduction section, and oxygen is blown into by the bottom, molten bath, and rich lead skim of output and part lead bullion, rich lead skim need pour into clinker through casting slag machine equally, send into retailoring of blast furnace again, output lead bullion and slag.But different with oxygen top blown submergence smelting process, the furnace binding of oxygen bottom-blowing method is simple, and construction investment is less.Compare with sintering-retailoring of blast furnace technology, though oxygen bottom-blowing has solved oxidation panel flue gas SO preferably
2Pollution problem, but because the defective of oxygen bottom-blowing technology itself, most of lead can only be with the oxide form and flux slag making together such as quartz, Wingdale of lead, reduction ratio of lead is less than 40%.Because the direct reduction technique of high plumbous liquid slag is still immature at present, thereby after having to be cooled to slag bear to about 1200 ℃ high-temperature molten slag, send that blast furnace is interior to be heated to about 1250 ℃ with coke and to carry out the high temperature reduction melting, heat energy utilization is extremely unreasonable again.
Oxygen top blown submergence smelting process (Australia Si Maitefa, Ai Safa) is the copper smelting technology that the seventies in last century, Australia succeeded in developing, after transplant smelting in lead.This smelting technique is in the stove of a drum shape, through the perforate of the oblique flue in stove top, inserts one by air cooled steel spray gun.Spray gun is positioned at the burner hearth central authorities of inner lining refractory; Head is embedded in the melt, and fuel and air are directly injected in the high-temperature fusion slag blanket through spray gun, produces combustion reactions and causes the vigorous agitation of melt; Carry out the oxidation sweetening of material, output part lead bullion and rich lead skim.Like this, the furnace charge that in a little space, adds is by rapid heat fused and accomplish chemical reaction.The depth of penetration of adjustment spray gun can be controlled the melt stirring intensity, flexible operation, and stove can keep thermally-stabilised in a long time.The rich lead skim of melting output pours into clinker through casting slag machine, sends into retailoring of blast furnace again, produces lead bullion and slag.The top-blown bath smelting furnace is less demanding to going into the stove material, no matter be particulate materials or powdery concentrate, flue dust returning charge etc., as long as moisture is less than 10%, and all can be directly into stove.If pulverulent material helps reducing dust rate through batching, granulation fed to boiler.This method is compared with basic husband's Saite method, QSL method because main equipment is simple in structure, auxiliary, auxiliary facility is uncomplicated, and initial cost is lower.Replaced the sintering that traditional refining splicer plants with the oxidized still melting, the oxidized still exhaust gas volumn is little, flue gas SO
2Concentration is high, has solved the sintering process low concentration SO
2Pollution problem, the sulphur more than 90% obtains recycling, environmental pollution is little, and work industrial hygiene condition is greatly improved than traditional method.But 40% lead is with lead bullion form output because oxidation panel is only had an appointment, and rich lead skim can not directly reduce and must pour into clinker, and a large amount of sensible heats of rich, high temperature lead skim can't utilize, and need allocate a large amount of coke at retailoring of blast furnace, so its energy consumption is very high.
Above-mentioned process method has all solved the SO of the plumbous smelting industry of long-term puzzlement preferably
2The pollution problem of flue gas and lead dust; But the molten lead oxidation slag of output need condense and send blast furnace reduction again behind the ingot bar in Shuiko mountain method of smelt lead and the oxygen top blown submergence smelting process fusion process; The heat content of high-temperature fusion lead oxidation slag can't utilize; Blast furnace reduction need consume expensive block metallurgical coke simultaneously, has increased production cost; In addition, the slag that above-mentioned process method is smelted output also need send fuming furnace further to handle, and production unit is many, and production link is many, the big operating environment heavy contamination of investment.
The utility model content
The purpose of the utility model is exactly the deficiency that exists to above-mentioned prior art, and the device of the direct retailoring of the leaded cadmia of a kind of fused solution is provided.
Above-mentioned purpose realizes through following proposal:
The device of the direct retailoring of the leaded cadmia of a kind of fused solution; It comprises retailoring electric furnace (1); It is characterized in that; Be provided with opening for feed (2) and flue (7) in the top of said retailoring electric furnace (1), be provided with slagging tray (2), be provided with matte mouth (5) and slag-drip opening (6) in a side relative with said slagging tray (2) in the side of said retailoring electric furnace (1); Be provided with in an adjacent side and put plumbous mouthful (4), and on said retailoring electric furnace (1), also be provided with one or more gases winding-ups mouthful (3) with said slagging tray (2).
According to said apparatus, it is characterized in that said one or more gas winding-ups mouthful (3) are symmetricly set on the side or and the top of said retailoring electric furnace (1).
The beneficial effect of the utility model: the device of the utility model can be realized the HS melting, and flow process is short, serialization; Energy-conservation; Production capacity is big; Resources effective utilization; Environment protection; Safety and labour hygiene are good, production safety.Realize that fusion contains the comprehensive recovery of the valuable element in the lead skim, lead and associated valuable metals copper zinc and noble metal recovery are higher.
Description of drawings
Fig. 1 is the structural representation of the utility model using appts.
Fig. 2 be among Fig. 1 A-A to sectional view.
Embodiment
Referring to Fig. 1 and Fig. 2; The device of the direct retailoring of the leaded cadmia of the fused solution of the utility model comprises retailoring electric furnace 1; Above retailoring electric furnace 1, be provided with opening for feed 2 and flue 7, be provided with slagging tray 2, be provided with matte mouth 5 and slag-drip opening 6 with slagging tray 2 relative sides in the side of retailoring electric furnace 1; Put plumbous mouthful 4 being provided with, and on retailoring electric furnace 1, also be provided with or the winding-up of one or more gas mouthfuls 3 with slagging tray 2 adjacent sides.Preferably, one or more gas winding-up mouths 3 are symmetricly set on the side or and the top of retailoring electric furnace 1.
Use the fusion process of the utility model may further comprise the steps:
1. fused solution contains lead skim and flows directly in the molten bath of retailoring electric furnace 1 through slag chute 8, and adds carbonaceous reducing agent that granularity is 20～100mm simultaneously or/and material through retailoring electric furnace 1 top filling device 2;
2. retailoring electric furnace 1 makes slag temperature maintain 1100 ~ 1300 ℃ through electrode 9 concurrent heatings.
3. simultaneously in the molten bath, feed nitrogen, pressurized air or reducing gas and stir melt, make in the leaded slag most of plumbous, zinc in the retailoring electric furnace, reduce fuming through gas winding-up mouthfuls 3; Output lead bullion, lead matte and zinc fume, after slag, lead matte and the lead bullion clarification layering, the lead bullion of retailoring electric furnace 1 is emitted from putting plumbous mouthful 4 siphons, and lead matte is discharged by matte mouth 5, and slag is discharged by slag-drip opening 6 after the reduction fuming; The zinc fume that reduction produces is discharged through retailoring electric furnace flue 7 with electric furnace flue gas together, effluxes contain the flue dust of valency metal through supporting flue gas processing device recovery after.
Claims (2)
1. the device of the direct retailoring of the leaded cadmia of fused solution; It comprises retailoring electric furnace (1); It is characterized in that; Be provided with opening for feed (2) and flue (7) in the top of said retailoring electric furnace (1), be provided with slagging tray (2), be provided with matte mouth (5) and slag-drip opening (6) in a side relative with said slagging tray (2) in the side of said retailoring electric furnace (1); Be provided with in an adjacent side and put plumbous mouthful (4), and on said retailoring electric furnace (1), also be provided with one or more gases winding-ups mouthful (3) with said slagging tray (2).
2. device according to claim 1 is characterized in that, said one or more gas winding-ups mouthful (3) are symmetricly set on the side or and the top of said retailoring electric furnace (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203481895U CN202297742U (en) | 2011-09-16 | 2011-09-16 | Device for direct reduction smelting of molten liquid lead-containing zinc slag with blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203481895U CN202297742U (en) | 2011-09-16 | 2011-09-16 | Device for direct reduction smelting of molten liquid lead-containing zinc slag with blowing |
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| Publication Number | Publication Date |
|---|---|
| CN202297742U true CN202297742U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203481895U Expired - Fee Related CN202297742U (en) | 2011-09-16 | 2011-09-16 | Device for direct reduction smelting of molten liquid lead-containing zinc slag with blowing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965509A (en) * | 2012-11-27 | 2013-03-13 | 中南大学 | Method and device for treating daub and iron-rich heavy metal solid waste of waste lead-acid storage battery |
| CN102965510A (en) * | 2012-11-27 | 2013-03-13 | 中南大学 | Reduction sulfur-fixing bath smelting method and device of low-sulfur lead-containing secondary material and iron-rich heavy metal solid waste |
| CN103205581A (en) * | 2013-03-11 | 2013-07-17 | 中国恩菲工程技术有限公司 | Bottom blowing smelting electrothermal reduction lead and zinc smelting device |
| CN103205582A (en) * | 2013-03-11 | 2013-07-17 | 中国恩菲工程技术有限公司 | Bottom blowing smelting electrothermal reduction lead and zinc smelting process |
-
2011
- 2011-09-16 CN CN2011203481895U patent/CN202297742U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965509A (en) * | 2012-11-27 | 2013-03-13 | 中南大学 | Method and device for treating daub and iron-rich heavy metal solid waste of waste lead-acid storage battery |
| CN102965510A (en) * | 2012-11-27 | 2013-03-13 | 中南大学 | Reduction sulfur-fixing bath smelting method and device of low-sulfur lead-containing secondary material and iron-rich heavy metal solid waste |
| CN102965510B (en) * | 2012-11-27 | 2014-12-10 | 中南大学 | Reduction sulfur-fixing bath smelting method and device of low-sulfur lead-containing secondary material and iron-rich heavy metal solid waste |
| CN103205581A (en) * | 2013-03-11 | 2013-07-17 | 中国恩菲工程技术有限公司 | Bottom blowing smelting electrothermal reduction lead and zinc smelting device |
| CN103205582A (en) * | 2013-03-11 | 2013-07-17 | 中国恩菲工程技术有限公司 | Bottom blowing smelting electrothermal reduction lead and zinc smelting process |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20150916 |
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| EXPY | Termination of patent right or utility model |