CN105403035A - Noble metal recycling electric-arc furnace - Google Patents
Noble metal recycling electric-arc furnace Download PDFInfo
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- CN105403035A CN105403035A CN201510853430.2A CN201510853430A CN105403035A CN 105403035 A CN105403035 A CN 105403035A CN 201510853430 A CN201510853430 A CN 201510853430A CN 105403035 A CN105403035 A CN 105403035A
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- noble metal
- heater
- arc
- draught hood
- furnace
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a noble metal recycling electric-arc furnace which is a metal smelting furnace applying a direct-current electric-arc furnace technology, and the noble metal recycling electric-arc furnace is used for recycling and enriching a silicon-aluminum carrier inactivation noble metal catalyst, tailings containing noble metal and noble metal in slag. The top end of a furnace body is provided with an arc-shaped draught hood capable of being opened and closed; the arc-shaped draught hood is composed of left and right symmetrical parts; the left and the right parts oppositely rotate for being spliced and sealed; a spiral conveyor is arranged above the furnace body; a discharge hole of the spiral conveyor is aligned to the top end of the furnace body; an air draft tube is arranged above opening-closing parts of the left and the right parts of the arc-shaped draught hood; the air draft tube is sequentially connected to a dry type quenching tower, a bag type dust collector, a draught fan and an exhausting chimney. According to the noble metal recycling electric-arc furnace disclosed by the invention, by pre-treating and batching materials, increasing a metal catching rate, and improving the quality of a slag silicate glass body, raw material standards of silicate cement and mineral cotton can be reached, noble metal and the carrier are comprehensively recycled and hazardous solid waste is treated.
Description
Technical field
Apply a metal smelting-furnace for DC electric arc furnace, for reclaiming enrichment silica-alumina supports inactivation noble metal catalyst, containing the noble metal in the mine tailing of noble metal and slag.
Background technology
The noble metal catalyst of silica-alumina supports, after reaction after inactivation, except containing except noble metal, also has the harmful substance in chemical reaction, belongs to danger wastes, need process.By pretreatment in early stage and EAF Technology, while reclaiming enriching noble metals, process harmful substance, comprehensive reutilization, eliminates solid waste.At present, domestic have stove of the same type, but have several shortcoming, and automaticity is low, simple control power and temperature; Pollute large, exhaust-gas treatment thorough, sealing is poor; What have is also adopting sulphur catch process, pollutes large, poor working environment.Do not adopt continuous smelting technology, accurate temperature controlling, energy consumption is high.The plasma arc furnace of external employing, manufacturing cost is high, pretreatment and supplementary costs high, also very choose material, complicated operation.Manufacturing cost is 3 to 5 times of stove of the same type, and operation cost is more than 2 times.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of cost performance higher, low stain is compared with low energy consumption, and the noble metal of the direct-current arc dry method enrichment that automaticity is higher reclaims smelting furnace.Optimization on original direct-current arc metal recovery enrichment equipment basis and technology upgrading.
For realizing the object of the invention, provide following technical scheme: a kind of noble metal reclaims electric arc furnaces, it is characterized in that comprising body of heater, body of heater center is provided with chimney rock electrode ink, bottom of furnace body is provided with bottom graphite electrode, the nearly bottom of body of heater is provided with the discharge nozzle under being tilted to, body of heater opposite side stage casing is provided with the downward scum pipe of inclination 35 degree, described body of heater is from inside to outside by refractory-lined ovens lining, pouring layer and water leg are formed, body of heater top is provided with can the arc draught hood of open and close type, arc draught hood is made up of the left and right portion of both sides symmetry, the opposite direction rotating splicing sealing of left and right portion, conveying worm is provided with above described body of heater, conveying worm discharging opening is just to body of heater top, exhaust column is provided with above the opening and closing, left and right portion of arc draught hood, exhaust column connects dry type quench tower successively, bag filter, blower fan and blowdown stack.
As preferably, arc draught hood is provided with liquid level sensor.
As preferably, body of heater is provided with temperature sensor.
As preferably, be just provided with receiving hopper to below scum pipe, discharge nozzle.
Beneficial effect of the present invention: sexual valence of the present invention is higher, low stain is compared with low energy consumption, and automaticity is higher, and structure is simple, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Embodiment 1: a kind of noble metal reclaims electric arc furnaces, comprise body of heater 1, body of heater 1 center is provided with chimney rock electrode ink 2, bottom graphite electrode 3 is provided with bottom body of heater 1, the nearly bottom of body of heater 1 is provided with the discharge nozzle 4 under being tilted to, body of heater 1 opposite side stage casing is provided with the downward scum pipe 5 of inclination 35 degree, described body of heater 1 is from inside to outside by refractory-lined ovens lining 1.1, pouring layer 1.2 and water leg 1.3 are formed, body of heater 1 top is provided with can the arc draught hood 6 of open and close type, arc draught hood 6 is by the left and right portion (6.1 of both sides symmetry, 6.2) form, left and right portion (6.1, 6.2) opposite direction rotating splicing sealing, conveying worm 7 is provided with above described body of heater 1, conveying worm 7 discharging opening is just to body of heater 1 top, the left and right portion (6.1 of arc draught hood 6, 6.2) exhaust column 8 is provided with above opening and closing, exhaust column 8 connects dry type quench tower 9 successively, bag filter 10, blower fan 11 and blowdown stack 12.Arc draught hood 6 is provided with liquid level sensor 13.Body of heater 1 is provided with temperature sensor 14.Just be provided with receiving hopper 15 to below scum pipe 5, discharge nozzle 4.The left and right portion (6.1,6.2) of arc draught hood 6 is provided with auricle and both sides, body of heater 1 top are hinged, arc draught hood 6 edge is all socketed with rubber seal, center pillar graphite electrode 2 can upper and lower displacement, concrete grammar is conventional in prior art, such as: can the arc-spark stand of upper and lower displacement, lifting screw system or cylinder.
The control of electric arc furnaces is identical with general electric arc furnaces, repeats no more.Furnace maneuver, first wants open closed formula draught hood, and position switch shows, draught hood standard-sized sheet; Arc-spark stand is risen, rotates to maintenance position and fall, after checking that electrode is normal, rise and rotate, then fall, control rotation and lifting systems by lifting screw system and cylinder and four position switch.
After electrode is in place, open exhausting, start to feed in raw material, controlling conveying worm has Level control, reaches material level, automatically stops reinforced.Fed in raw material, draught hood is closed automatically.Then, check normally, the starting the arc of stove power transmission, start melting.By the time the secondary voltage after fusing, current stabilization, temperature reach, start deslagging, and control point is in temperature, and secondary voltage is auxiliary reference point.After deslagging to certain liquid level, stopper blocks scum pipe automatically.Draught hood is opened, and again feeds in raw material, and stop to liquid level, go round and begin again, to the last material melting is complete.Start the discharging of bottom discharge pipe, after bottom discharge, this melting terminates.
Claims (4)
1. a noble metal reclaims electric arc furnaces, it is characterized in that comprising body of heater, body of heater center is provided with chimney rock electrode ink, bottom of furnace body is provided with bottom graphite electrode, the nearly bottom of body of heater is provided with the discharge nozzle under being tilted to, body of heater opposite side stage casing is provided with the downward scum pipe of inclination 35 degree, described body of heater is from inside to outside by refractory-lined ovens lining, pouring layer and water leg are formed, body of heater top is provided with can the arc draught hood of open and close type, arc draught hood is made up of the left and right portion of both sides symmetry, the opposite direction rotating splicing sealing of left and right portion, conveying worm is provided with above described body of heater, conveying worm discharging opening is just to body of heater top, exhaust column is provided with above the opening and closing, left and right portion of arc draught hood, exhaust column connects dry type quench tower successively, bag filter, blower fan and blowdown stack.
2. a kind of noble metal according to claim 1 reclaims electric arc furnaces, it is characterized in that arc draught hood is provided with liquid level sensor.
3. a kind of noble metal according to claim 1 reclaims electric arc furnaces, it is characterized in that body of heater is provided with temperature sensor.
4. a kind of noble metal according to claim 1 reclaims electric arc furnaces, it is characterized in that just being provided with receiving hopper to below scum pipe, discharge nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853430.2A CN105403035B (en) | 2015-11-30 | 2015-11-30 | A kind of noble metal reclaims electric arc furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853430.2A CN105403035B (en) | 2015-11-30 | 2015-11-30 | A kind of noble metal reclaims electric arc furnaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105403035A true CN105403035A (en) | 2016-03-16 |
| CN105403035B CN105403035B (en) | 2018-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510853430.2A Active CN105403035B (en) | 2015-11-30 | 2015-11-30 | A kind of noble metal reclaims electric arc furnaces |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3501401A1 (en) * | 1984-01-18 | 1985-07-25 | Huta Zabrze, Zabrze | Electric arc resistance furnace for continuous melting of mineral raw materials, in particular basalt |
| CN1908518A (en) * | 2006-08-21 | 2007-02-07 | 东北大学 | Electric arc molten processing system and method for processing rubbish combustion ash |
| CN201688684U (en) * | 2010-04-27 | 2010-12-29 | 攀钢集团攀枝花钢钒有限公司 | Rotatable smelting furnace |
| CN201740366U (en) * | 2010-07-06 | 2011-02-09 | 刘霖 | Dust-collecting device for rotary smelting electric furnace |
| CN201858861U (en) * | 2010-11-16 | 2011-06-08 | 中冶赛迪工程技术股份有限公司 | Ducted raw material conveying and smoke dust recycling device for smelting containers |
| CN203478926U (en) * | 2013-07-26 | 2014-03-12 | 郑州烨达高新材料有限公司 | Electric melting furnace for black corundum |
| CN104359326A (en) * | 2014-11-21 | 2015-02-18 | 孙慕文 | System for efficiently recovering steel-making flue gas residual heat of electric-arc furnace |
| CN204461037U (en) * | 2015-03-03 | 2015-07-08 | 孙树人 | A kind of saving energy of electric arc furnace cover |
| CN205262160U (en) * | 2015-11-30 | 2016-05-25 | 江苏立宇环境科技有限公司 | Precious metal recovery electric arc furnace |
-
2015
- 2015-11-30 CN CN201510853430.2A patent/CN105403035B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3501401A1 (en) * | 1984-01-18 | 1985-07-25 | Huta Zabrze, Zabrze | Electric arc resistance furnace for continuous melting of mineral raw materials, in particular basalt |
| CN1908518A (en) * | 2006-08-21 | 2007-02-07 | 东北大学 | Electric arc molten processing system and method for processing rubbish combustion ash |
| CN201688684U (en) * | 2010-04-27 | 2010-12-29 | 攀钢集团攀枝花钢钒有限公司 | Rotatable smelting furnace |
| CN201740366U (en) * | 2010-07-06 | 2011-02-09 | 刘霖 | Dust-collecting device for rotary smelting electric furnace |
| CN201858861U (en) * | 2010-11-16 | 2011-06-08 | 中冶赛迪工程技术股份有限公司 | Ducted raw material conveying and smoke dust recycling device for smelting containers |
| CN203478926U (en) * | 2013-07-26 | 2014-03-12 | 郑州烨达高新材料有限公司 | Electric melting furnace for black corundum |
| CN104359326A (en) * | 2014-11-21 | 2015-02-18 | 孙慕文 | System for efficiently recovering steel-making flue gas residual heat of electric-arc furnace |
| CN204461037U (en) * | 2015-03-03 | 2015-07-08 | 孙树人 | A kind of saving energy of electric arc furnace cover |
| CN205262160U (en) * | 2015-11-30 | 2016-05-25 | 江苏立宇环境科技有限公司 | Precious metal recovery electric arc furnace |
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|---|---|
| CN105403035B (en) | 2018-04-03 |
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