CN207537511U - The processing system of silver preparation concentrate - Google Patents
The processing system of silver preparation concentrate Download PDFInfo
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- CN207537511U CN207537511U CN201721614316.5U CN201721614316U CN207537511U CN 207537511 U CN207537511 U CN 207537511U CN 201721614316 U CN201721614316 U CN 201721614316U CN 207537511 U CN207537511 U CN 207537511U
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Abstract
The utility model discloses a kind of processing systems of silver preparation concentrate.The processing system includes：Oxygen bottom blown furnace including furnace body, is provided with outlet flue and charge door at the top of furnace body, the bottom of furnace body is provided with the oxygen rifle for oxygen-enriched air or nitrogen input furnace body；Flue gas processing device is connected with the outlet flue of oxygen bottom blown furnace；And feeding device, it is connected with the charge door of oxygen bottom blown furnace.Using the technical solution of the utility model, using oxygen bottom blowing process silver preparation concentrate, gas directly blasts melt layer from bottom, melt is in stir state, accelerate heat transfer and material oxidation, burn-off rate, create good reacting dynamics condition, so as to achieve the purpose that improve treating capacity and efficiency of utilization, shorten charging and the melting cycle of silver preparation concentrate, improve the environmental issue in the production capacity of electrum and improvement silver preparation concentrate processing procedure.
Description
Technical field
The utility model is related to secondary resource recycling field, in particular to a kind of processing system of silver preparation concentrate.
Background technology
Contain the valuable metals such as gold, silver, selenium, tellurium, existing recycling earth of positive pole in the earth of positive pole that copper electrolysis system generates
Technology be usually branch extraction copper, selenium, tellurium, silver, Au, Pt, Pd.The silver essence of flotation generation is carried out after copper anode mud removing copper selen-tellurjum
Ore deposit is to obtain the raw material of electrum anode plate.The prior art, which generally uses, divides silver stove to handle silver preparation concentrate.Silver stove is divided to produce at present
There are following defects：(1) feed time is long；(2) the reduction melting time is long；(3) the oxidizing semlting time is long；(4) environmentally friendly risk is high,
Flue gas is excessive during grate, and low vacancy pollution is more serious.
Utility model content
The utility model is intended to provide a kind of processing system of silver preparation concentrate, passes through a point silver to solve silver preparation concentrate in the prior art
The technical issues of smelting time existing for stove processing is long.
To achieve these goals, one side according to the present utility model provides a kind of processing system of silver preparation concentrate.
The processing system includes：Oxygen bottom blown furnace including furnace body, is provided with outlet flue and charge door, the bottom of furnace body at the top of furnace body
It is provided with the oxygen rifle for oxygen-enriched air or nitrogen input furnace body；Flue gas processing device is connected with the outlet flue of oxygen bottom blown furnace
It is logical；And feeding device, it is connected with the charge door of oxygen bottom blown furnace.
Further, processing system further includes the alloy casting machine for going out alloy mouth and being connected with oxygen bottom blown furnace.
Further, alloy casting machine is the alloy casting machine that electrum anode plate is formed for casting.
Further, processing system further includes the clinker treater being connected with the slag notch of oxygen bottom blown furnace.
Further, feeding device includes smart silver ore feeding chamber and soda ash feeding chamber, smart silver ore feeding chamber and soda ash charging
Storehouse is fed by the first quantitative spiral conveyor and the second quantitative spiral conveyor to mobile belt conveyor respectively, mobile
Rubber conveyer is used to expect to be sent into oxygen bottom blown furnace.
Further, the end of oxygen bottom blown furnace is provided with pure oxygen burning heating plant.
Further, the regulating valve of control oxygen-enriched air and nitrogen intake is provided in oxygen rifle.
Using the technical solution of the utility model, using oxygen bottom blowing process silver preparation concentrate, gas is directly roused from bottom
Enter melt layer, melt accelerates heat transfer and material oxidation, burn-off rate, create good kinetics item in state of stirring
Part so as to achieve the purpose that improve treating capacity and efficiency of utilization, shortens charging and the melting cycle of silver preparation concentrate, improves gold and silver and close
Environmental issue in the production capacity of gold and improvement silver preparation concentrate processing procedure.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide a further understanding of the present invention, this practicality
Novel illustrative embodiments and their description do not form the improper restriction to the utility model for explaining the utility model.
In the accompanying drawings：
Fig. 1 shows the flow signal of the processing method of the silver preparation concentrate according to one typical embodiment of the utility model
Figure；And
Fig. 2 shows the structural representations of the processing system of the silver preparation concentrate according to the utility model one typical embodiment
Figure.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
According to a kind of typical embodiment of the utility model, a kind of processing system of silver preparation concentrate is provided.As shown in Fig. 2,
The processing system includes oxygen bottom blown furnace 10, flue gas processing device 20 and feeding device, wherein, oxygen bottom blown furnace 10 includes stove
Body, outlet flue and charge door are provided at the top of furnace body, and the bottom of furnace body is provided with for oxygen-enriched air or nitrogen input furnace body
Oxygen rifle；Flue gas processing device 20 is connected with the outlet flue of oxygen bottom blown furnace；And feeding device and oxygen bottom blown furnace plus
Material mouth is connected.During normal production, bottom convertor remains stationary state does not do any rotation, when oxygen is broken down or replaces in production
During rifle, can oxygen rifle be produced into melt in a short time, resumed production easily, labor intensity is small, improves production chains.Oxygen
Charge door, discharge port and outlet flue of gas bottom convertor etc. can be used outside water jacket cooling, and rest part can be built using refractory material
It builds, reduces furnace body heat dissipation, improve the thermal efficiency.
According to a kind of typical embodiment of the utility model, the processing system of silver preparation concentrate further includes and oxygen bottom blown furnace 10
The alloy casting machine 40 for going out alloy mouth and being connected.Preferably, alloy casting machine 40 is to form electrum anode for casting
The alloy casting machine of plate.In a kind of typical embodiment of the utility model, charge door, slag notch go out alloy mouth and can be
One mouth.
According to a kind of typical embodiment of the utility model, the processing system of silver preparation concentrate further includes and oxygen bottom blown furnace 10
The clinker treater 30 that is connected of slag notch.
According to a kind of typical embodiment of the utility model, feeding device includes smart silver ore feeding chamber 51 and soda ash charging
Storehouse 52, smart silver ore feeding chamber 51 and soda ash feeding chamber 52 are given respectively by the first quantitative spiral conveyor 61 and the second quantitative spiral
Material machine 62 feeds to mobile belt conveyor 70, and mobile belt conveyor 70 is used to expect to be sent into oxygen bottom blown furnace 10, from
And realize that labor intensity is small, device operation is flexible, high degree of automation.
Preferably, the end of oxygen bottom blown furnace is provided with pure oxygen burning heating plant.Preferably, control is provided in oxygen rifle
The regulating valve of oxygen-enriched air and nitrogen intake.
According to a kind of typical embodiment of the utility model, a kind of processing method of silver preparation concentrate is provided.The processing method
Include the following steps：Using oxygen bottom blowing process silver preparation concentrate, silver preparation concentrate for the earth of positive pole that copper electrolysis system generates remove copper,
The silver preparation concentrate of flotation generation is carried out after selenium, tellurium.
Using the technical solution of the utility model, using oxygen bottom blowing process silver preparation concentrate, gas is directly roused from bottom
Enter melt layer, melt accelerates heat transfer and material oxidation, burn-off rate, create good kinetics item in state of stirring
Part so as to achieve the purpose that improve treating capacity and efficiency of utilization, shortens smelting time.
Preferably, oxygen bottom blowing technique includes fusing, melting and refinement step successively.
According to a kind of typical embodiment of the utility model, fusing step includes：Silver preparation concentrate is added continuously oxygen bottom
In blown converter, the temperature in the stove of oxygen bottom blown furnace is maintained at 1100~1350 DEG C, while nitrogen is fed by bottom of furnace body oxygen rifle,
Strengthen bottom molten bath to stir, the selenium in silver preparation concentrate enters flue gas in the form of the oxide, and the flue gas generated with pure oxygen burning mixes
It is handled together into flue gas processing device.
Preferably, melting step includes：After silver preparation concentrate thawing, in control oxygen bottom blown furnace for weak oxide atmosphere (usually
Weak oxide atmosphere, which refers to cross in combustion product, multiplies oxygen content for 2~5%), part lead in silver preparation concentrate, arsenic, antimony with from bottom oxygen rifle
The oxygen-enriched air blasted react generation oxide be volatized into flue dust together with flue gas enter flue gas processing device, other are miscellaneous
With oxygen-enriched air oxidation reaction generation oxide occurs for prime element, into slag blanket.
Preferably, control the amount of oxygen blasted in melting step, complete small part (the 10% of impurity element total amount~
50%) impurity element oxidation.
Preferably, the electrum grade for treating silver preparation concentrate is 60~70%, and melting step is completed, rotating furnace, discharges slag
Layer.
According to a kind of typical embodiment of the utility model, the amount of oxygen that is set according to oxygen bottom blown furnace, nitrogen amount and
It is weak oxide atmosphere in oxygen-rich concentration control oxygen bottom blown furnace.
According to a kind of typical embodiment of the utility model, refinement step includes：1) it is added in into oxygen bottom blown furnace
SiO2As slag former, oxygen-enriched air amount in oxygen bottom blown furnace and oxygen-rich concentration are adjusted to impurity element slag making, works as silver preparation concentrate
Electrum grade when reaching 80~90%, discharge slag blanket；2) soda ash is added in into oxygen bottom blown furnace, soda ash forms tellurium with tellurium
Slag discharges slag blanket containing tellurium；3) step 1) and step 2) are repeated, until electrum grade reaches more than 97%, casting obtains gold
Silver alloy anode plate.
Preferably, the slag making time is controlled according to the content of tellurium in silver preparation concentrate in step 2), and continues air feed oxygen supply.
According to a kind of typical embodiment of the utility model, main flow according to Fig. 1, the processing method of silver preparation concentrate
It specifically includes：
(1) fusion process
It is added continuously in oxygen bottom blown furnace by the silver preparation concentrate of metering, the pure oxygen burning system of oxygen bottom blown furnace end setting
System provides heat, maintains the temperature in stove after 1100 DEG C or so, while bottom of furnace body oxygen rifle feeds nitrogen, strengthens bottom molten bath
Agitation, accelerates the fusing of material.During silver preparation concentrate melts in oxygen bottom blown furnace, selenium enters flue gas in the form of the oxide
(flue dust, predominantly SeO2), the flue gas generated with pure oxygen burning is mixed into subsequent flue gas processing device.
(2) fusion process
After all silver preparation concentrate fusings, oxygen bottom during being somebody's turn to do according to the control of the amount of oxygen, nitrogen amount, oxygen-rich concentration of setting
It is weak oxide atmosphere in blown converter, part lead, arsenic, antimony react generation with the oxygen-enriched air blasted from bottom oxygen rifle in silver preparation concentrate
Oxide is volatized into flue dust and enters subsequent flue gas processing device together with flue gas；Other impurities element occurs with oxygen-enriched air
Oxidation reaction generates oxide, into slag blanket.Process needs strictly control the amount of oxygen blasted, only complete least a portion of impurity
Element oxide only obtains a small amount of slag.After the completion for the treatment of the process, rotating furnace arranges a small amount of thin slag that weld pool surface is formed
Go out.The electrum grade in stove is 60~70% at this time.
(3) refining process
After drained slag, furnace body is rotated to normal production position, due to ＜ 2% of the copper content in original silver preparation concentrate, because
This does not need to addition potassium nitrate removal impurity copper, therefore need to only add SiO2The impurity un-cleared as slag former and last stage
Element slag making.The oxygen-supplying amount control of adjustment air feed blasts oxygen-enriched air amount and oxygen-rich concentration in stove.As slag making reacts continuous
It carries out, impurity element more and more enters slag phase, and the grade of electrum constantly increases, when electrum grade reaches 80
When~90%, rotating furnace body discharge slag blanket.
After drained slag, furnace body is rotated to normal production position, soda ash is added in again and forms tellurium slag with the tellurium in electrum,
The process controls the slag making time according to the content of tellurium in practical silver preparation concentrate, should continue air feed oxygen supply in the process.After the completion for the treatment of slag making,
The tellurium slag in the stage is poured the system for sending special recycling tellurium and continued with by rotating furnace body.
By tellurium slag it is drained after, furnace body is rotated to normal production position, repeats last process, until electrum grade reach~
When 95%, deslagging again.After slag is emptied, when the grade of electrum reaches~97%, that is, electrum anode plate of casting.
According to a kind of typical embodiment of the utility model, main flow and device shown in Fig. 2 according to Fig. 1,
The processing method of silver preparation concentrate specifically includes：
(1) fusion process
Silver preparation concentrate passes through defeated using mobile adhesive tape after the first quantitative spiral conveyor 61 under smart silver ore feeding chamber 51
Machine 70 is sent to be added continuously in oxygen bottom blown furnace 10.The pure oxygen burning system heat supply of 10 end of oxygen bottom blown furnace setting, maintains stove
Interior temperature is after 1100 DEG C or so, while bottom oxygen rifle feeds nitrogen, strengthens the agitation of bottom molten bath, accelerates the fusing of material.
During silver preparation concentrate melts in experimental furnace, selenium enters flue gas in the form of the oxide, and the flue gas generated with pure oxygen burning mixes
Unify into subsequent flue gas processing device 20.
(2) fusion process
After all silver preparation concentrate fusings, oxygen-enriched air pipeline valve is opened, according to the amount of oxygen of setting, nitrogen amount, oxygen-enriched
Valve opening on concentration adjustment air feed oxygen supply pipeline, it is weak oxide atmosphere in bottom convertor to control during being somebody's turn to do, in the middle part of silver preparation concentrate
Point lead, arsenic, antimony and the oxygen-enriched air blasted react generation oxide be volatized into flue dust enter together with flue gas it is subsequent
Flue gas processing device 20；With oxygen-enriched air oxidation reaction generation oxide occurs for other impurities element, into slag blanket.The process needs
The amount of oxygen blasted is strictly controlled, least a portion of impurity element oxidation is only completed, only obtains a small amount of slag.Treat that the process is completed
Afterwards, rotating furnace discharges a small amount of thin slag that weld pool surface is formed from slag notch.The electrum grade in stove is 60 at this time
~70%.
(3) refining process
After drained slag (clinker treater 30 is connected with the slag notch of oxygen bottom blown furnace), furnace body is rotated to normal raw
Presentation due to ＜ 2% of the copper content in original silver preparation concentrate, does not need to addition potassium nitrate removal impurity copper, therefore only
SiO need to be added2The impurity element slag making un-cleared as slag former and last stage.Instrument on air feed oxygen supply pipeline is adjusted to adjust
Valve, control blast oxygen-enriched air amount and oxygen-rich concentration in stove.With the continuous progress that slag making is reacted, impurity element is more and more
Entrance slag phase, and the grade of electrum constantly increases, when electrum grade reaches 80~90%, rotating furnace body discharge
Slag blanket.
After drained slag, furnace body is rotated to normal production position, adding in soda ash again by dosing spiral, (soda ash passes through
After the second quantitative spiral conveyor 62 under soda ash feeding chamber 52 oxygen is added continuously using mobile belt conveyor 70
In bottom convertor 10) with electrum in tellurium formed tellurium slag, the process according in practical silver preparation concentrate tellurium content control slag making when
Between, air feed oxygen supply should be continued in the process.After the completion for the treatment of slag making, the tellurium slag in the stage is poured and sent at clinker by rotating furnace body
Manage device.
By tellurium slag it is drained after, furnace body is rotated to normal production position, repeats last process, until electrum grade reach~
When 95%, deslagging again.After slag is emptied, when the grade of electrum reaches~97%, cast gold by alloy casting machine 40
Silver alloy anode plate.
Wherein, dosing spiral sets the feeding coal of silver preparation concentrate and soda ash according to technological requirement；Mobile adhesive tape conveying
Machine continuously and stably adds in material in oxygen bottom blown furnace；It needs to remove from the position of charge door when clearing up charge door conveniently
Operation；Oxygen bottom blown furnace handles silver preparation concentrate output electrum, and reaction institute is sent into using oxygen bottom blowing technique and oxygen rifle structure
The gas needed completes processing procedure；Alloy casting machine：The electrum of output is cast into anode plate, can realize and quantitatively pour
Casting, reaches the requirement of silver-colored electrolysis system.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of processing system of silver preparation concentrate, which is characterized in that including：
Oxygen bottom blown furnace including furnace body, is provided with outlet flue and charge door, the bottom setting of the furnace body at the top of the furnace body
It is useful for oxygen-enriched air or nitrogen inputs the oxygen rifle of the furnace body；
Flue gas processing device is connected with the outlet flue of the oxygen bottom blown furnace；And
Feeding device is connected with the charge door of the oxygen bottom blown furnace.
2. processing system according to claim 1, which is characterized in that the processing system further includes and the oxygen bottom blowing
The alloy casting machine for going out alloy mouth and being connected of stove.
3. processing system according to claim 2, which is characterized in that the alloy casting machine is to form gold and silver for casting
The alloy casting machine of alloy anode plate.
4. processing system according to claim 1, which is characterized in that the processing system further includes and the oxygen bottom blowing
The clinker treater that the slag notch of stove is connected.
5. processing system according to claim 1, which is characterized in that the feeding device includes smart silver ore feeding chamber and pure
Alkali feeding chamber, the essence silver ore feeding chamber and soda ash feeding chamber pass through the first quantitative spiral conveyor and the second quantitative spiral respectively
Batcher feeds to mobile belt conveyor, and the mobile belt conveyor is used to expect to be sent into the oxygen bottom blown furnace.
6. processing system according to claim 1, which is characterized in that the end of the oxygen bottom blown furnace is provided with pure oxygen combustion
Burn heating plant.
7. processing system according to claim 1, which is characterized in that control oxygen-enriched air and nitrogen are provided in the oxygen rifle
The regulating valve of gas intake.
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| CN201721614316.5U CN207537511U (en) | 2017-11-27 | 2017-11-27 | The processing system of silver preparation concentrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107916337A (en) * | 2017-11-27 | 2018-04-17 | 中国恩菲工程技术有限公司 | The processing system of silver preparation concentrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107916337A (en) * | 2017-11-27 | 2018-04-17 | 中国恩菲工程技术有限公司 | The processing system of silver preparation concentrate |
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