CN205262160U - Precious metal recovery electric arc furnace - Google Patents
Precious metal recovery electric arc furnace Download PDFInfo
- Publication number
- CN205262160U CN205262160U CN201520972854.6U CN201520972854U CN205262160U CN 205262160 U CN205262160 U CN 205262160U CN 201520972854 U CN201520972854 U CN 201520972854U CN 205262160 U CN205262160 U CN 205262160U
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- CN
- China
- Prior art keywords
- heater
- arc
- noble metal
- electric arc
- draught hood
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- Expired - Fee Related
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- Vertical, Hearth, Or Arc Furnaces (AREA)
- Discharge Heating (AREA)
Abstract
The utility model provides a precious metal recovery electric arc furnace, uses the metal melting stove of direct current electric arc furnace technique for retrieve the expensive metal catalyst of enrichment sial carrier inactivation, the tailing that contains the noble metal and the noble metal in the slay. But the furnace body top is provided with the arc aspirator of switching formula, and the arc aspirator comprises the left and right sides portion of both sides symmetry, and the concatenation rotatory in opposite directions of left and right sides portion is sealed, the furnace body top is provided with screw conveyer, and the screw conveyer discharge gate just to the furnace body top, is provided with the exhaust column above the switching department of left and right sides portion of arc aspirator, and the exhaust column connects gradually dry -type quench tower, bag filter, fan and exhaust stacks. Through the preliminary treatment and the batching of material, the catch rate of improvement metal to reaching the quality that slag silicate glass personally experienced sth. Part of the body, making it to reach the raw material standards of portland cement, mineral wool, dangerous solid giving up is handled to comprehensive recovery noble metal and carrier.
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 mine tailing of noble metal and the noble metal of slag.
Background technology
The noble metal catalyst of silica-alumina supports, after inactivation, except containing noble metal, also has the harmful substance in chemical reaction after reaction, belongs to danger wastes, needs to process. By pretreatment in early stage and EAF Technology, when reclaiming enriching noble metals, process harmful substance, comprehensive reutilization, eliminates solid waste. At present, domestic have stove of the same type, but have several shortcomings, and automaticity is low, simple power ratio control and temperature; Pollute large, exhaust-gas treatment not thorough, sealing is poor; What have is also adopting sulphur catch process, pollutes greatly poor working environment. Do not adopt continuous smelting technology, accurate temperature controlling, energy consumption is high. The external plasma arc furnace adopting, manufacturing cost is high, and pretreatment and supplementary costs are high, also choose very much 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 utility model, for the deficiencies in the prior art, provides a kind of cost performance higher, and low pollution 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 and technology upgrading on original direct-current arc metal recovery enrichment equipment basis.
For realizing the utility model object, 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 35 degree, described body of heater is from inside to outside by refractory-lined ovens lining, pouring layer and water leg form, body of heater top is provided with arc draught hood that can 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, described body of heater top is provided with conveying worm, conveying worm discharging opening is just to body of heater top, the top, left and right portion opening and closing of arc draught hood is provided with exhaust column, exhaust column connects dry type quench tower successively, bag filter, blower fan and blowdown stack.
As preferably, on arc draught hood, be provided with liquid level sensor.
As preferably, on body of heater, be provided with temperature sensor.
As preferably, just scum pipe, discharge nozzle below are provided with to receiving hopper.
The utility model beneficial effect: the utility model cost performance is higher, low pollution is compared with low energy consumption, and automaticity is higher, and simple in structure, long service life.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
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, body of heater 1 bottom is provided with bottom graphite electrode 3, 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 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 form, body of heater 1 top is provided with arc draught hood 6 that can 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, described body of heater 1 top is provided with conveying worm 7, conveying worm 7 discharging openings are just to body of heater 1 top, the left and right portion (6.1 of arc draught hood 6, 6.2) top, opening and closing is provided with exhaust column 8, exhaust column 8 connects dry type quench tower 9 successively, bag filter 10, blower fan 11 and blowdown stack 12. on arc draught hood 6, be provided with liquid level sensor 13. on body of heater 1, be provided with temperature sensor 14. just scum pipe 5, discharge nozzle 4 belows are provided with to receiving hopper 15. the left and right portion (6.1,6.2) of arc draught hood 6 is provided with auricle and body of heater 1 both sides, top are hinged, arc draught hood 6 edges are all socketed with rubber seal, center column graphite electrode 2 can upper and lower displacement, concrete grammar is conventional in prior art, for example: arc-spark stand, lifting screw system or cylinder that can upper and lower displacement.
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, rotate to maintenance position and fall, after checking that electrode is normal, rise rotation, then fall, by lifting screw system and cylinder and four position switch control rotation and lifting systems.
After electrode is in place, open exhausting, start to feed in raw material, controlling conveying worm has material level control, reaches material level, automatically stops feeding in raw material. Fed in raw material, draught hood is closed automatically. Then,, after checking normally, the starting the arc of stove power transmission, starts melting. By the time secondary voltage, current stabilization, the temperature after fusing reaches, starts deslagging, and control point is in temperature, and secondary voltage is auxiliary reference point. Deslagging is after certain liquid level, and stopper blocks scum pipe automatically. Draught hood is opened, again reinforced, stops to liquid level, goes round and begins again, and to the last material melting is complete. Start the discharging of bottom discharge pipe, after bottom discharge, this melting finishes.
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 35 degree, described body of heater is from inside to outside by refractory-lined ovens lining, pouring layer and water leg form, body of heater top is provided with arc draught hood that can 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, described body of heater top is provided with conveying worm, conveying worm discharging opening is just to body of heater top, the top, left and right portion opening and closing of arc draught hood is provided with exhaust column, 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 being provided with liquid level sensor on arc draught hood.
3. a kind of noble metal according to claim 1 reclaims electric arc furnaces, it is characterized in that being provided with on body of heater temperature sensor.
4. a kind of noble metal according to claim 1 reclaims electric arc furnaces, it is characterized in that just scum pipe, discharge nozzle below being provided with to receiving hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972854.6U CN205262160U (en) | 2015-11-30 | 2015-11-30 | Precious metal recovery electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972854.6U CN205262160U (en) | 2015-11-30 | 2015-11-30 | Precious metal recovery electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205262160U true CN205262160U (en) | 2016-05-25 |
Family
ID=56003683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520972854.6U Expired - Fee Related CN205262160U (en) | 2015-11-30 | 2015-11-30 | Precious metal recovery electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205262160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403035A (en) * | 2015-11-30 | 2016-03-16 | 江苏立宇环境科技有限公司 | Noble metal recycling electric-arc furnace |
-
2015
- 2015-11-30 CN CN201520972854.6U patent/CN205262160U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403035A (en) * | 2015-11-30 | 2016-03-16 | 江苏立宇环境科技有限公司 | Noble metal recycling electric-arc furnace |
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Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20191130 |