CN2225006Y - Vacuum distillating furnace for treating alloy with high lead content and low tin content - Google Patents
Vacuum distillating furnace for treating alloy with high lead content and low tin content Download PDFInfo
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- CN2225006Y CN2225006Y CN 94246169 CN94246169U CN2225006Y CN 2225006 Y CN2225006 Y CN 2225006Y CN 94246169 CN94246169 CN 94246169 CN 94246169 U CN94246169 U CN 94246169U CN 2225006 Y CN2225006 Y CN 2225006Y
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Abstract
The utility model discloses a vacuum distillating furnace for treating alloy with high lead content and low tin content, belonging the technical field that the vacuum technology is applied in the metallurgy field. The vacuum furnace is mainly composed of a feed pipe, a water cooled furnace body, an evaporating tray, a condensing cover, electric poles, etc. In the vacuum furnace, for adapting requirement of the treatment of the alloy with high lead content and low tin content, on the basis of the original equipment, the feed position is changed, the feeding from a furnace bottom is changed into the feeding from a furnace body; the structural forms of the evaporating tray and the condensing cover are improved, produced are discharged out by more than three discharge pipes, the gas-liquid heat exchange in side the furnace is improved, the heat efficiency is improvement, the power consumption is reduced, and the cost is saved. Compared with detinning by oxidation and electrolysis, the utility model has obvious economical benefits.
Description
The utility model belongs to the application of vacuum technique in field of metallurgy.
" the multistage continuous vacuum furnace of internal heat type " has been widely used in handling leypewter, and progressively becomes one of main refining equipment of tin smelting.This vacuum drying oven in 1987 by Kunming Polytechnic College, Xiye Corporation Institute Yunnan Prov., smeltery, Kunming co-applications patent, obtained patent right, the patent No. 87209402 on February 16th, 1989.But, because melting increases based on the slicker solder mixing ore deposit of lead, the terne metal content tin of output only about 10% is with traditional oxidizing process detin, produce a large amount of scruffs, damage by fume is big, contaminated environment, and working condition is abominable, handle with former vacuum drying oven, not only product quality does not reach requirement, and has the power consumption height, smelts problems such as operation cost rising.At the problem that the multistage continuous vacuum furnace of present internal heat type exists, designed and handled the vacuum distillation furnace that high lead low tin alloy is used, obtained techno-economic effect preferably after putting into production use.
The purpose of this utility model is to improve the quality of products, and improves the thermal efficiency of vacuum drying oven, cuts down the consumption of energy, and reduces operating cost, reduces environmental pollution, improves working conditions.
It is to utilize the boiling point of tin more than the high characteristics of the boiling point of lead that vacuum drying oven is handled terne metal, under vacuum condition, the temperature of control procedure is on the boiling point of lead, under the boiling point of tin, make lead become the steam distillation and remove, tin stays and reaches lead-tin separation processes process.Vacuum drying oven is handled high lead low tin alloy, because plumbous many tin are few, realize that tin-plumbous separation need make a large amount of lead distillations, but energy consumption and operating cost does not increase, one of difficult point of Here it is newly-designed vacuum drying oven.Newly-designed vacuum drying oven structure as shown in Figure 1.Vacuum drying oven is made up of feed pipe (1), water cooled furnace body (2), condensation cover (3), evaporating pan (4), electric post (5), collection lead pan (6), nut (7), drop-bottom (8), metal electrode (9), vacuum tube (10), drainage conduit (11) etc.Accompanying drawing 2,3,4 is respectively three kinds of condensate pans cutaway views, and accompanying drawing 1 is the vacuum drying oven structural representation.
The utility model adopts the charging of furnace shell sidewall, and feed pipe (1) is welded on the sealing utmost point (12), sealing plate connects with the furnace shell sidewall and seals, feed pipe is a bascule, can select for use different pipe ranges to install and use according to different material composition and area height above sea level.Evaporating pan (4) adopts graphite to make, and place in the collection lead pan (6), circular hollow Stackable becomes cylindricality, use the evaporating pan of three kinds of versions, and be combined into the column evaporator of multiple version as required mutually, be provided with dividing plate (13) in the evaporating pan, guarantee that material has certain distance and time along the circumference operation,, there is an inclination angle at the end of trying to get to the heart of a matter and is provided with steam passing away (14).Condensation cover (3) adopts graphite to make, places on the collection lead pan (6), and the multilayer condensation structure, except that not perforate of outermost layer, each layer is regular in it is having the metallic vapour bleed hole, and the aperture is 5-10MM, porosity 20-25%.Electricity post (5) is made for cylindrical graphite, places the tower tray center that stacks, and connects with the metal electrode that passes drop-bottom (9), and power supply through metal electrode (9), is passed to heating electric post (5) again after transformation.Vacuum drying oven can adopt single phase power supply and the power supply of three-phase star, and the metal product of the composition that multilayer condensation output is different respectively by drainage conduit (11), adopts three above drainage conduit to discharge different metal products.
During the vacuum drying oven operation, after vacuumizing by vacuum tube (10) in the stove, pending liquid metals material, outer atmospheric pressure, deliver to the first order preheating of evaporating pan (4) continuously by feed pipe (1), order is through 1-N level evaporating pan again, liquid metals is in flow process, constantly absorb heat, temperature rises step by step, when reaching plumbous, during the bismuth volatilization temperature, plumbous and bismuth metal gas moves up with regard to the one-level level, carry out gas with the liquid metals material that flows downward---liquid heat exchange, gas rise to certain position, run into the lower multi-stage condensing cover (3) of temperature, the gas that volatilizes just becomes liquid at different temperatures scope fractional condensaion, come together in different discharge scope place in the collection lead pan (6), discharge, obtain the plumbous product of two or more different purity through different drainage conduit (11).Liquid is in flow process, and lead and bismuth in the alloy constantly reduce, and the stanniferous grade constantly raises, and discharges by row's tin-tube through evaporating pan (4) final stage again, and whole process is carried out continuously automatically.
Embodiment 1:
Handle the raw material composition: contain Sn15.23%, Pb83.166%, the thick tin of output contains Sn66.05%, Pb31.05%, Bi0.088%, Sb1.53%, lead bullion contains Pb99.16%, Sn0.049%, Bi0.165%, Sb0.094; Lead bullion contains Pb99.55%, Sn0.039%, and Bi0.141%, Sb0.0435%, treating capacity 5 ton per days, power consumption 685KWH/ ton, Sn reclaims＞99%, the Pb rate of recovery＞99%, pot slag rate 0.43%.
Embodiment 2:
Handle the raw material composition: contain Sn10.218%, Pb88.57%, the thick tin of output contains Sn88.52%, Pb8.0%, Bi0.019%, Sb1.58%, Ag0.865%; Lead bullion contains Pb99.18%, Sn0.09%, and Bi0.155%, Sb0.148%, Ag0.013%, lead bullion contains Pb99.69%, Sn0.0019%.Bi0.099％，Sb0.021％，Ag0.0019％。Lead bullion and lead bullion all were more than the standard of No. three lead of lead pig GB (GB469-8), silver more than 97% is enriched in the thick tin, help the recovery of silver, 97% bismuth is enriched in lead bullion and lead bullion, the tin rate of recovery＞99%, lead recovery＞99%, pot slag rate＜0.6%, power consumption 715KWh/ ton, treating capacity 4.8 ton per days.
Embodiment 3:
Handle the raw material composition: Sn9.27%, Pb89.94%, As0.168%, Sb0.344%, Bi0.09%, Ag0.057%, the thick tin of output contains Sn85.72%, Pb8.62%, Bi0.0425%, Sb1.58%, Ag0.73%, lead bullion contains Pb99.34%, Sb0.032%, Bi0.135%, Sb0.1%, Ag0.0061%; Lead bullion contains Pb99.86%, Sn0.004%, Bi0.0088%, Sn0.02%, Ag0.0014%.Treating capacity 4.6 ton per days, power consumption＞778KWh/ ton, the tin rate of recovery＞99%, lead recovery＞99%, pot slag rate 0.612%.
The utility model and original equipment, oxidizing process are coated with tin and have following advantage and good effect:
1, smelting recovery height. The rate of recovery of tin and lead is all greater than 99%.
2, pot slag rate is few, all is lower than 1%.
3, power consumption is low, 5-10 ton per days that use in the production, and the vacuum drying oven power consumption is all 800-90 The EWh/ ton, newly-designed vacuum drying oven power consumption is less than the 800KWh/ ton.
4, the silver in the material is enriched in the thick tin, helps comprehensive recovery.
Claims (4)
1, a kind ofly handles the vacuum distillation furnace that high lead low tin alloy is used, it is mainly by feed pipe (1), water cooled furnace body (2), condensation cover (3), evaporating pan (4), electricity post (5), collection lead pan compositions such as (6) is characterized in that the furnace shell sidewall is provided with feed pipe (1), and evaporating pan (4) places in the integrated dish (6), use the evaporating pan of three kinds of versions, condensation cover (3) places on the collection lead pan (6).
2, vacuum drying oven according to claim 1 is characterized in that feed pipe (1) is welded on the sealing plate (12), and sealing plate connects with furnace shell and seals.
3, vacuum drying oven according to claim 1 is characterized in that being provided with dividing plate (13) in the evaporating pan (4), the certain inclination angle and be provided with steam passing away (14) of having tried to get to the heart of a matter.
4, vacuum drying oven according to claim 1 is characterized in that the internal layer condensation is covered with to have the metallic vapour bleed hole regularly that its aperture is 5～10mm, and porosity is 20～25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246169 CN2225006Y (en) | 1994-11-24 | 1994-11-24 | Vacuum distillating furnace for treating alloy with high lead content and low tin content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246169 CN2225006Y (en) | 1994-11-24 | 1994-11-24 | Vacuum distillating furnace for treating alloy with high lead content and low tin content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2225006Y true CN2225006Y (en) | 1996-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94246169 Expired - Fee Related CN2225006Y (en) | 1994-11-24 | 1994-11-24 | Vacuum distillating furnace for treating alloy with high lead content and low tin content |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2225006Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781711A (en) * | 2010-03-29 | 2010-07-21 | 广西华锡集团股份有限公司 | Vacuum distillation furnace for fraction stepwise condensation and underflow or fraction redistillation of multi-component alloy |
| CN101672570B (en) * | 2008-09-08 | 2011-04-20 | 赵湘生 | Vertical stirring vacuum furnace |
| CN102676828A (en) * | 2012-06-04 | 2012-09-19 | 昆明理工大学 | Equipment for extracting gold and silver from lead/bismuth base alloy |
| CN103253703A (en) * | 2013-06-06 | 2013-08-21 | 江西海宸光电科技有限公司 | Preparation method and equipment of high-purity arsenic oxide |
| CN104651626A (en) * | 2015-02-05 | 2015-05-27 | 昆明鼎邦科技有限公司 | Method for separating tin from tin-lead-stibium-arsenic alloy by vacuum distillation |
| CN108441645A (en) * | 2018-03-02 | 2018-08-24 | 昆明鼎邦科技股份有限公司 | A kind of equipment of high arsenic alloy continuous vacuum distillation separation |
| CN111893304A (en) * | 2020-07-29 | 2020-11-06 | 贵溪三元金属有限公司 | Lead-free continuous vacuum distillation equipment for lead-tin alloy |
-
1994
- 1994-11-24 CN CN 94246169 patent/CN2225006Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672570B (en) * | 2008-09-08 | 2011-04-20 | 赵湘生 | Vertical stirring vacuum furnace |
| CN101781711A (en) * | 2010-03-29 | 2010-07-21 | 广西华锡集团股份有限公司 | Vacuum distillation furnace for fraction stepwise condensation and underflow or fraction redistillation of multi-component alloy |
| CN102676828A (en) * | 2012-06-04 | 2012-09-19 | 昆明理工大学 | Equipment for extracting gold and silver from lead/bismuth base alloy |
| CN103253703A (en) * | 2013-06-06 | 2013-08-21 | 江西海宸光电科技有限公司 | Preparation method and equipment of high-purity arsenic oxide |
| CN104651626A (en) * | 2015-02-05 | 2015-05-27 | 昆明鼎邦科技有限公司 | Method for separating tin from tin-lead-stibium-arsenic alloy by vacuum distillation |
| CN108441645A (en) * | 2018-03-02 | 2018-08-24 | 昆明鼎邦科技股份有限公司 | A kind of equipment of high arsenic alloy continuous vacuum distillation separation |
| CN108441645B (en) * | 2018-03-02 | 2019-12-31 | 昆明鼎邦科技股份有限公司 | Continuous vacuum distillation separation equipment for high-arsenic alloy |
| CN111893304A (en) * | 2020-07-29 | 2020-11-06 | 贵溪三元金属有限公司 | Lead-free continuous vacuum distillation equipment for lead-tin alloy |
| CN111893304B (en) * | 2020-07-29 | 2022-02-01 | 贵溪三元金属有限公司 | Lead-free continuous vacuum distillation equipment for lead-tin alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |