CN102353250B - Zinc-cadmium electric heating smelting rotary kiln - Google Patents
Zinc-cadmium electric heating smelting rotary kiln Download PDFInfo
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- CN102353250B CN102353250B CN2011103411596A CN201110341159A CN102353250B CN 102353250 B CN102353250 B CN 102353250B CN 2011103411596 A CN2011103411596 A CN 2011103411596A CN 201110341159 A CN201110341159 A CN 201110341159A CN 102353250 B CN102353250 B CN 102353250B
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- kiln body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a zinc-cadmium electric heating smelting rotary kiln. A feed port (3) and an exhaust port (4) are arranged at the front end of a kiln body (1), a condenser (5) is arranged at the front section of the kiln body (1), a material delivery and preheating rotary barrel (6) is arranged in the middle of the condenser (5), and an automatic zinc liquid overflowing device (7) is arranged below the condenser (5); an automatic material sealing device (8) is arranged in the middle section of the kiln body (1), a graphite heating element (9) is arranged at the back section of the kiln body (1), an external surface of the kiln body (1) is provided with a transformer (10) and a brush gear (11), and a sealing device (12), a lead liquid enriching device (13) and an automatic residue discharge device (14) are arranged at the tail end of the kiln body (1). The rotary kiln meets requirements of environmental protection, energy conservation and circular economy, and is suitable for smelting zinc, cadmium and lead zinc mixtures as well as other non-ferrous metals.
Description
Technical field
The present invention relates to a kind of non-ferrous metal metallurgy equipment, particularly a kind of zinc cadmium electric heating is smelted rotary kiln, belongs to metallurgical technology field.
Background technology
In the prior art, the smelting process of metallic zinc, cadmium mainly is divided into two kinds of wet method and pyrogenic processes.The general investment of hydrometallurgy is huge, the wastewater treatment difficulty, and selectively strong to raw material, area occupied is big, and it is many to consume chemical auxiliary material.Pyrometallurgical smelting has perpendicular jar of a smelting, blast furnace smelting and electric furnace smelting etc., all exist smelting temperature height, energy consumption big, to selective strong, the shortcomings such as exhausted air quantity is big, the specific yield investment is big, cost height of raw material.
Summary of the invention
Technical problem to be solved by this invention is to provide the zinc cadmium electric heating that a kind of cost is low, production efficiency is high, energy-saving and emission-reduction are good to smelt rotary kiln, thereby overcomes above-mentioned the deficiencies in the prior art.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of zinc cadmium electric heating is smelted rotary kiln.Its formation comprises the kiln body, kiln body transmission device is arranged in the bottom of kiln body, be provided with charging aperture and exhaust outlet at described kiln body front end, at the leading portion of kiln body condenser is housed, in the centre of condenser defeated material and preheating rotating cylinder are housed, zinc liquid are housed below condenser overflow device automatically; In the stage casing of kiln body the material automatic sealing device is housed, at the back segment of kiln body graphite heater is housed, bearing at the outer surface of kiln body has transformer and brushgear, is provided with sealing device, plumbous liquid enrichment device and residue automatic discharge device at the afterbody of kiln body.
Above-mentioned zinc cadmium electric heating is smelted rotary kiln, and described condenser is scalariform Waterwheel-type splash condenser, is provided with Waterwheel-type at condenser by the external cylindrical shell of kiln place and contains the zinc bucket, is provided with the ladder that falls to splashing and seesaw for zinc liquid at Sheng Xindou.
Aforesaid zinc cadmium electric heating is smelted rotary kiln, and described material automatic sealing device is S shape material automatic sealing device.
Aforesaid zinc cadmium electric heating is smelted rotary kiln, and described graphite heater is to be contained in the silicon nitride protective sleeve, places the kiln body again.
Aforesaid zinc cadmium electric heating is smelted rotary kiln, and described kiln body liner is to adopt silicon carbide brick to add light-weight insulating brick.
Beneficial effect of the present invention: The present invention be directed to the improvement product that the applicant is " second generation crude zinc is smelted kiln " in the denomination of invention of application on 02 04th, 2010, have following characteristics: (1) bears dry-type transformer at the kiln body, realize high tension transmission, normal pressure uses, the electric current of brush and circuit is diminished, reduce line loss, saves energy.(2) heater of smelting adopts the graphite heater beaming device; use voltage and power have been improved; and outside graphite heater, apply mechanically the silicon nitride protective casing; graphite heater is in the nitrogen protection; isolate with smelting material; greatly improve the service life of graphite heater, and when blow-on, do not smelted atmosphere and limit, also made things convenient for the maintenance of graphite heater to change.(3) adopt S shape material automatic sealing device in the rotary kiln, kiln body leading portion is separated with back segment, the material steam that automatically preheating is produced in advancing on the way and the metal gas of smelting generation are separated.(4) adopt scalariform Waterwheel-type splash condenser, and at middle defeated material and the preheating rotating cylinder of arranging of condenser, it is more abundant that liquid metal is seesawed up and down, the impact of splashing down is little, the drop that splashes down is more even, increased material structure intensity, also make the condenser temperature distributing equilibrium, make the zinc fume just can fast cooling in the porch, obtain high-efficiency condensation, improved condensation effect greatly, and in the process of condensation metal vapors, can simultaneously its heat be passed to material, thereby reach the best thermal utilization effect of limit condensation side preheating, the zinc vapor condensation heat radiation has obtained recycling preferably.(5) the plumbous liquid enrichment device that adopts at the rotary kiln afterbody, enrichment one-tenth is liquid automatically to make tiny metallic particles, drops down into output magazine, has reduced waste.(6) inner liner of rotary kiln adopts silicon carbide brick to add the double-deck structure of refractory of light-weight insulating brick, and good, the anti-multiple bad atmosphere erosion of wearability brothel in, life-span are long, and the external heat radiation of kiln is few, good heat preservation performance, and energy consumption is low.
The present invention makes material not need preprocessing, the preheating of material, smelting, the condensation of zinc fume, overflow, steam separates with smelting waste gas, the enrichment of liquid lead, contents such as the cooling of waste residue are all finished in a kiln body, have that energy consumption is low, waste gas is few, direct yield is high, material adapts to wide, good product quality, specific investment cost is few, production cost is low, labour intensity is low, automatization level is high, the production efficiency advantages of higher.Compare the applicant in " second generation crude zinc is smelted kiln " of application on 02 04th, 2010, the present invention is more convenient in the conveying of electricity, electric current is little, line loss is few; It is few that heater is installed maintenance convenience, long service life, radiation loss; And condensation efficiency is higher, and the whole air-tightness of kiln is better, and exhausted air quantity produces few, and heat is taken away few, and thermal efficiency is higher.The present invention meets the requirement of environmental protection, energy-conservation, reduction of discharging, recycling economy; both be fit to the smelting of crude zinc, thick cadmium and plumbous zinc compound; also be fit to other non-ferrous metal metallurgies, all use the present invention carry out other non-ferrous metal metallurgies all within protection scope of the present invention.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is the C-C cutaway view of Fig. 1.
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
The specific embodiment
Embodiment 1.As shown in Figure 1, comprise kiln body 1, kiln body transmission device 2 is arranged in the bottom of kiln body 1, can drive kiln body 1 average rate constantly rotation slowly in smelting process by kiln body transmission device 2.Kiln body 1 liner adopts silicon carbide brick to add light-weight insulating brick.Front end at kiln body 1 is provided with charging aperture 3 and exhaust outlet 4, and charging aperture 3 connects feed hopper 17, and exhaust outlet 4 connects sack cleaner.Material is added in the kiln body 1 by charging aperture 3 by feed hopper 17, and steam is by discharging outside the kiln body 1 by chimney after the material preheating of 3 pairs of addings of charging aperture.Smelt the waste gas of generation after preheating section (preheating rotating cylinder 6) further dispels the heat, discharge kiln bodies 1 by exhaust outlet 4, after the sack cleaner dedusting, the remaining CO gas that is mainly can be used as fuel.Leading portion at kiln body 1 is equipped with scalariform Waterwheel-type splash condenser 5, is placed with Waterwheel-type at condenser 5 by kiln body 1 outer cylinder body place and contains zinc bucket 15, is provided with the ladder 16 (as shown in Figure 2) that zinc liquid falls to splashing and seesaw at Sheng zinc bucket 15.Defeated material and preheating rotating cylinder 6 are housed in the centre of condenser 5, zinc liquid is housed below condenser 5 overflows device 7 (as shown in Figure 3) automatically, this zinc liquid overflows device 7 automatically can will be contained the rich zinc liquid (zinc, cadmium) that zinc bucket 15 can not load automatically and extruded outside the rotary kiln by the automatic hydraulic mode by zinc outlet in the rotary course of kiln body 1.S shape material automatic sealing device 8 is housed in the stage casing of kiln body 1; Some groups of graphite heaters 9 are equipped with in back segment setting at kiln body 1; graphite heater 9 is to be contained in the silicon nitride protective sleeve; place kiln body 1 (as shown in Figure 4) again; bearing at the outer surface of kiln body 1 has dry-type transformer 10 and brushgear 11; transformer 10 connects graphite heater 9 by brushgear 11, send electricity to go up kiln by brushgear 11.Afterbody at kiln body 1 is equipped with sealing device 12, plumbous liquid enrichment device 13 and residue automatic discharge device 14.Thermometric and pressure measurement probe can also be set at leading portion, stage casing, back segment and the afterbody of kiln body 1, and this thermometric and pressure measurement probe signal are emitted to automatic control system, realize that control is produced automatically.
Embodiments of the present invention are not limited to above-described embodiment, and the various variations of making under the prerequisite that does not break away from aim of the present invention all belong within protection scope of the present invention.
Claims (4)
1. a zinc cadmium electric heating is smelted rotary kiln, comprise kiln body (1), in the bottom of kiln body (1) kiln body transmission device (2) is arranged, it is characterized in that: be provided with charging aperture (3) and exhaust outlet (4) at described kiln body (1) front end, leading portion at kiln body (1) is equipped with condenser (5), in the centre of condenser (5) defeated material and preheating rotating cylinder (6) are housed, in the below of condenser (5) zinc liquid are housed and overflow device (7) automatically; In the stage casing of kiln body (1) material automatic sealing device (8) is housed, back segment at kiln body (1) is equipped with graphite heater (9), bear transformer is arranged (10) and brushgear (11) at the outer surface of kiln body (1), be provided with sealing device (12), plumbous liquid enrichment device (13) and residue automatic discharge device (14) at the afterbody of kiln body (1); Described material automatic sealing device (8) is S shape material automatic sealing device.
2. zinc cadmium electric heating according to claim 1 is smelted rotary kiln, it is characterized in that: described condenser (5) is scalariform Waterwheel-type splash condenser, be provided with Waterwheel-type at condenser (5) by kiln body (1) outer cylinder body place and contain zinc bucket (15), be provided with the ladder (16) that falls to splashing and seesaw for zinc liquid at Sheng Xindou (15).
3. zinc cadmium electric heating according to claim 1 is smelted rotary kiln, and it is characterized in that: described graphite heater (9) is to be contained in the silicon nitride protective sleeve, places kiln body (1) again.
4. zinc cadmium electric heating according to claim 1 is smelted rotary kiln, it is characterized in that: described kiln body (1) liner adopts silicon carbide brick to add light-weight insulating brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103411596A CN102353250B (en) | 2011-11-02 | 2011-11-02 | Zinc-cadmium electric heating smelting rotary kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103411596A CN102353250B (en) | 2011-11-02 | 2011-11-02 | Zinc-cadmium electric heating smelting rotary kiln |
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| Publication Number | Publication Date |
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| CN102353250A CN102353250A (en) | 2012-02-15 |
| CN102353250B true CN102353250B (en) | 2013-09-25 |
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| CN2011103411596A Expired - Fee Related CN102353250B (en) | 2011-11-02 | 2011-11-02 | Zinc-cadmium electric heating smelting rotary kiln |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014372A (en) * | 2012-12-17 | 2013-04-03 | 葫芦岛炼锌厂 | Zinc smelting device for gas rotary kiln |
| CN103526045A (en) * | 2013-10-30 | 2014-01-22 | 岳阳钟鼎热工电磁科技有限公司 | Continuous-recovery pusher kiln for regenerated zinc |
| CN107218802A (en) * | 2017-07-13 | 2017-09-29 | 贵州仙劲锌业有限公司 | A kind of low-temperature environment-friendly electric heating smelting rotary kiln for handling the cadmium dangerous waste material of lead containing zinc-iron |
| CN107326185A (en) * | 2017-07-13 | 2017-11-07 | 贵州仙劲锌业有限公司 | A kind of low-temperature environment-friendly smelting process of the cadmium of lead containing zinc-iron dangerous waste material |
| CN109631569A (en) * | 2018-12-10 | 2019-04-16 | 贵州仙劲锌业有限公司 | A kind of environmentally friendly smelting rotary kiln handling the cadmium of lead containing zinc-iron dangerous waste material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451197A (en) * | 2008-03-24 | 2009-06-10 | 云南昊龙实业集团兴煜冶炼有限公司 | Vertical rotary type zinc rain condensator |
| CN101597695A (en) * | 2009-07-07 | 2009-12-09 | 葫芦岛炼锌厂 | A kind of method of smelting zinc by electric heating rotary kiln |
| CN201678715U (en) * | 2010-05-13 | 2010-12-22 | 昆明圣奥科技发展有限公司 | Zinc smelting equipment for DC submerged arc furnace |
| CN102146522A (en) * | 2010-02-04 | 2011-08-10 | 徐建成 | Second-generation crude zinc smelting kiln |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06108175A (en) * | 1992-09-30 | 1994-04-19 | Aichi Steel Works Ltd | Refining method for crude zinc and its device |
| JP4499306B2 (en) * | 2001-02-20 | 2010-07-07 | 住友重機械工業株式会社 | Method for dezincing zinc-containing iron oxide using a rotary kiln |
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2011
- 2011-11-02 CN CN2011103411596A patent/CN102353250B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451197A (en) * | 2008-03-24 | 2009-06-10 | 云南昊龙实业集团兴煜冶炼有限公司 | Vertical rotary type zinc rain condensator |
| CN101597695A (en) * | 2009-07-07 | 2009-12-09 | 葫芦岛炼锌厂 | A kind of method of smelting zinc by electric heating rotary kiln |
| CN102146522A (en) * | 2010-02-04 | 2011-08-10 | 徐建成 | Second-generation crude zinc smelting kiln |
| CN201678715U (en) * | 2010-05-13 | 2010-12-22 | 昆明圣奥科技发展有限公司 | Zinc smelting equipment for DC submerged arc furnace |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2002-241850A 2002.08.28 |
| JP特开平6-108175A 1994.04.19 |
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