CN105403035B - A kind of noble metal reclaims electric arc furnaces - Google Patents
A kind of noble metal reclaims electric arc furnaces Download PDFInfo
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- CN105403035B CN105403035B CN201510853430.2A CN201510853430A CN105403035B CN 105403035 B CN105403035 B CN 105403035B CN 201510853430 A CN201510853430 A CN 201510853430A CN 105403035 B CN105403035 B CN 105403035B
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- heater
- arc
- draught hood
- noble metal
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
A kind of noble metal reclaims electric arc furnaces, using the metal smelting-furnace of DC electric arc furnace, for reclaiming the noble metal in enrichment silica-alumina supports inactivation noble metal catalyst, mine tailing and slag containing noble metal.Body of heater top be provided with can open and close type arc draught hood, arc draught hood is made up of the symmetrical left and right portion in both sides, the opposite direction rotating splicing sealing of left and right portion, conveying worm is provided with above the body of heater, conveying worm discharging opening face body of heater top, exhaust column is provided with above the left and right portion opening and closing of arc draught hood, exhaust column is sequentially connected dry type chilling tower, bag filter, blower fan and blowdown stack.Pretreatment and dispensing by material, the catch rate of metal, and the quality of clinker silicate glass body are improved, enable the raw material standards for reaching portland cement, mineral wool, synthetical recovery noble metal and carrier, handle dangerous solid waste.
Description
Technical field
A kind of metal smelting-furnace using DC electric arc furnace, for reclaiming enrichment silica-alumina supports inactivation precious metal catalyst
Noble metal in agent, mine tailing and slag containing noble metal.
Background technology
The noble metal catalyst of silica-alumina supports, after being inactivated after reaction, in addition to containing noble metal, also also have in chemically reacting
Harmful substance, belong to danger wastes, it is necessary to handle.By pretreatment early stage and EAF Technology, enriching noble metals are reclaimed
Meanwhile harmful substance is handled, comprehensive reutilization, eliminate solid waste.At present, the domestic stove for having same type, lacked but with several
Point, automaticity is low, simple to control power and temperature；Pollution is big, exhaust-gas treatment not thoroughly, sealing is poor；Have
Technique is also being caught using sulphur, pollution is big, and working environment is poor.Do not use continuous smelting technology, accurate temperature controlling, high energy consumption.State
The plasma arc furnace of outer use, manufacturing cost is high, and pretreatment and supplementary costs are high, also choose very much material, complex operation.It is manufactured into
Originally it is 3 to 5 times of same type stove, operation cost is more than 2 times.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of cost performance is higher, low stain automates journey compared with low energy consumption
The noble metal recovery smelting furnace of the higher direct-current arc dry method enrichment of degree.Equipment basis is enriched with original direct-current arc metal recovery
On optimization and technology upgrading.
To realize the object of the invention, there is provided following technical scheme：A kind of noble metal reclaims electric arc furnaces, it is characterised in that bag
Body of heater is included, body of heater is provided centrally with column graphite electrode, bottom of furnace body is provided with bottom graphite electrode, and the nearly bottom of body of heater is provided with
Discharge nozzle diagonally downward, body of heater opposite side stage casing be provided with tilt 35 degree of downward scum pipes, the body of heater from inside to outside by
Refractory-lined ovens lining, pouring layer and water leg are formed, body of heater top be provided with can open and close type arc draught hood, arc draught hood
It is made up of the symmetrical left and right portion in both sides, the splicing sealing of left and right portion opposite direction rotating, conveying worm, spiral shell is provided with above the body of heater
Revolve conveyer discharging opening face body of heater top, be provided with exhaust column above the left and right portion opening and closing of arc draught hood, exhaust column according to
Secondary connection dry type chilling tower, bag filter, blower fan and blowdown stack.
Preferably, it is provided with liquid level sensor on arc draught hood.
Preferably, temperature sensor is provided with body of heater.
Preferably, it is provided with receiving hopper below face scum pipe, discharge nozzle.
Beneficial effect of the present invention：Sexual valence of the present invention is higher, and for low stain compared with low energy consumption, automaticity is higher, and
It is simple in construction, service life length.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
Embodiment 1:A kind of noble metal reclaims electric arc furnaces, including body of heater 1, body of heater 1 be provided centrally with column graphite electrode 2,
The bottom of body of heater 1 is provided with bottom graphite electrode 3, and 1 nearly bottom of body of heater is provided with discharge nozzle 4 diagonally downward, in the opposite side of body of heater 1
Section be provided with tilt 35 degree of downward scum pipes 5, the body of heater 1 from inside to outside by refractory-lined ovens lining 1.1, pouring layer 1.2 and
Water leg 1.3 is formed, the top of body of heater 1 be provided with can open and close type arc draught hood 6, arc draught hood 6 is symmetrically left by both sides
Right part（6.1、6.2）Form, left and right portion（6.1、6.2）Opposite direction rotating splicing sealing, the top of body of heater 1 are provided with helical feed
Machine 7, the top of 7 discharging opening face body of heater of conveying worm 1, the left and right portion of arc draught hood 6（6.1、6.2）Set above opening and closing
There is exhaust column 8, exhaust column 8 is sequentially connected dry type chilling tower 9, bag filter 10, blower fan 11 and blowdown stack 12.Arc is taken out
Liquid level sensor 13 is provided with fan housing 6.Temperature sensor 14 is provided with body of heater 1.Face scum pipe 5, the lower section of discharge nozzle 4 are set
It is equipped with receiving hopper 15.The left and right portion of arc draught hood 6（6.1、6.2）It is provided with auricle to be hinged with the top both sides of body of heater 1, arc is taken out
The edge of fan housing 6 is socketed with rubber seal, center pillar graphite electrode 2 can upper and lower displacement, specific method is existing skill
Commonly used in art, such as：Can upper and lower displacement arc-spark stand, lifting screw system or cylinder.
The control of electric arc furnaces is identical with general electric arc furnaces, repeats no more.Furnace maneuver, first have to open closed type exhausting
Cover, position switch is shown, draught hood standard-sized sheet；Arc-spark stand is risen, maintenance position is rotated to and falls, after checking that electrode is normal, rise
Rotation is played, then is fallen, rotation and lifting system is controlled by lifting screw system and cylinder and four position switch.
After electrode is in place, exhausting is opened, starts to feed, control conveying worm has Level control, reaches material position, stops automatically
Only feed.Charging is completed, and draught hood is closed automatically.Then, after checking normally, the stove power transmission starting the arc, melting is started.When fusing
Secondary voltage afterwards, electric current stabilization, temperature reach, start deslagging, and in temperature, secondary voltage is auxiliary reference point at control point.
For deslagging to after certain liquid level, stopper blocks scum pipe automatically.Draught hood is opened, and is fed again, is stopped to liquid level, Zhou Erfu
Begin, to the last material melting finishes.Start bottom discharge pipe to discharge, after bottom discharge, this melting terminates.
Claims (1)
1. a kind of noble metal reclaims electric arc furnaces, it is characterised in that including body of heater, body of heater is provided centrally with column graphite electrode, body of heater
Bottom is provided with bottom graphite electrode, and the nearly bottom of body of heater is provided with discharge nozzle diagonally downward, and body of heater opposite side stage casing is provided with
35 degree of downward scum pipes are tilted, the body of heater is made up of refractory-lined ovens lining, pouring layer and water leg from inside to outside, body of heater top
End be provided with can open and close type arc draught hood, arc draught hood is made up of the symmetrical left and right portion in both sides, left and right portion opposite direction rotating
Splicing sealing, the body of heater top are provided with conveying worm, conveying worm discharging opening face body of heater top, arc draught hood
Left and right portion opening and closing above be provided with exhaust column, exhaust column is sequentially connected dry type chilling tower, bag filter, blower fan and row
Chimney is put, the left and right portion of arc draught hood is provided with auricle and is hinged with body of heater top both sides, and arc draught hood edge covers
Rubber seal is connected to, after electrode is in place, exhausting is opened, starts to feed, control conveying worm has Level control, reaches material
Position, charging is automatically stopped, charging is completed, and draught hood is closed automatically, then, after checking normally, the stove power transmission starting the arc, starts to melt
Refining, secondary voltage, electric current stabilization after fusing, temperature reach, start deslagging, and in temperature, secondary voltage is at control point
Reference point is aided in, after deslagging to certain liquid level, stopper blocks scum pipe automatically, draught hood opening, feeds, stops to liquid level again
Only, going round and beginning again, to the last material melting finishes, and starts bottom discharge pipe and discharges, and after bottom discharge, this melting terminates,
Liquid level sensor is provided with arc draught hood, temperature sensor is provided with body of heater, is set below face scum pipe, discharge nozzle
There is receiving hopper.
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 CN105403035A (en) | 2016-03-16 |
| CN105403035B true CN105403035B (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1908518A (en) * | 2006-08-21 | 2007-02-07 | 东北大学 | Electric arc molten processing system and method for processing rubbish combustion ash |
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL245769A1 (en) * | 1984-01-18 | 1985-07-30 | Huta Zabrze | Electric resistance-and-arc furnace for melting minerals in particular basalt |
| 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 |
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1908518A (en) * | 2006-08-21 | 2007-02-07 | 东北大学 | Electric arc molten processing system and method for processing rubbish combustion ash |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN105403035A (en) | 2016-03-16 |
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