CN101838087A - Anode mud treatment equipment and air flotation slot thereof - Google Patents
Anode mud treatment equipment and air flotation slot thereof Download PDFInfo
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- CN101838087A CN101838087A CN201010102918A CN201010102918A CN101838087A CN 101838087 A CN101838087 A CN 101838087A CN 201010102918 A CN201010102918 A CN 201010102918A CN 201010102918 A CN201010102918 A CN 201010102918A CN 101838087 A CN101838087 A CN 101838087A
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- air flotation
- flotation slot
- sulphur
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- anode
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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
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- 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 anode mud treatment equipment, which comprises an air flotation slot, a dryer, a melting slot and a sulfur filter press, wherein the dryer is connected with the air flotation slot and is used for receiving and drying crude sulfur discharged from the air flotation slot; the melting slot is connected with the dryer and is used for melting the dried crude sulfur; and the sulfur filter press is connected with the melting slot and is used for carrying out pressure filtration on the melted sulfur. The invention also discloses the air flotation slot used for the anode mud treatment equipment. According to the invention, three substances in anode mud are simultaneously separated in the same air flotation slot, less equipment is needed, and the separation effect is good. The sulfur content in the separated crude sulfur is high, and the energy consumption in melting is further reduced because the crude sulfur is dehydrated and dried before being melted. Since the sulfur content in the crude sulfur is high, and the sulfide content is low, the operation and the efficiency performance of the sulfur filter press become convenient.
Description
Technical field
The present invention relates to a kind of anode mud treatment equipment and air flotation slot thereof, especially relate to and a kind ofly produce recovery sulphur the byproduct-anode sludge of metallic nickel and be rich in the anode mud treatment equipment and the air flotation slot thereof of the sulfide of valuable metal from electrolytic process.
Background technology
Traditionally, produce metallic nickel with copper nickel sulfide mineral and all will the impurity in nickel, the mineral and other metals could be separated, obtain purified metallic nickel through many operations, wherein last operation is the electrowinning process of nickel, wherein at negative electrode precipitating metal nickel, and the sulphur that contains in the anode and be rich in sulfide (for example, nickelous sulfide and cupric sulfide) other valuable metals (for example, platinum, lead, gold, silver,) be the solid puree shape and stay in the electrolyzer, be commonly referred to the anode sludge.The anode sludge contains a large amount of sulphur and insoluble valuable metal and unworthy impurity.
In order to reclaim sulphur and the organo-metallic in the anode sludge, traditional method be with the anode sludge wash, many operations such as screening and precipitate and separate, make sulphur and contain the separating substances of valuable metal, the material after will separating is again handled recovery respectively.Yet all there are some problems in traditional treatment process, and for example operation is many, the equipment complexity, and efficient is low, energy consumption height, problem such as sulfur purity is low.
For example, in traditional Canadian Thomson anode treatment method, at first use flotation machine antianode mud to handle, need to add medicament, increased cost, and solution has corrodibility to flotation machine, existing flotation machine can not be suitable for, and needs special corrosion-resistant flotation machine.And the anode sludge need pass through scalping, and twice filtration directly melted without drying, strengthened the consumption of steam in the anode sludge melting process, and equipment is corroded easily during the wet simultaneously anode sludge (thick sulphur) fusing, has increased the cost of investment of equipment.In addition, the sulfide that contains in the thick sulphur is many, when in the end handling with the sulphur pressure filter, and the inferior separating effect of sulphur and sulfide.
For another example, handle in the method for the anode sludge in Jinchuan company, the washing of the anode sludge, filtration and fusing are manual operations, and labour intensity is big, and environment is abominable.The inferior separating effect of sulphur and other materials, it is low to cause the anode sludge to enter the sulfur-bearing of drying machine and melting channel, and the material treatment capacity is big, so energy consumption is big.The normal pressure suction strainer is adopted in simultaneously thick sulphur fusing, and the rate of recovery of sulphur is low, and labor condition is poor.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.For this reason, one object of the present invention be to propose that a kind of operation is simple, equipment is few, the anode mud treatment equipment of good separating effect and air flotation slot thereof.
To achieve these goals,, propose a kind of air flotation slot that is used to handle the anode sludge, comprising according to one aspect of the invention: cell body, described cell body open-top and bottom are formed with relief outlet; And agitator, described agitator is arranged on and is used for the intravital anode sludge slurries of steel basin in the described cell body.
Air flotation slot according to the embodiment of the invention, in an air flotation slot, by stirring, utilize the hydrophobicity and the proportion of contained material in the anode sludge, just can the thick sulphur of precipitate and separate, the aqueous solution and contain the sulfide of valuable metal, therefore simple in structure, technology is simple, cost is low, for subsequent disposal has been brought facility.
Air flotation slot according to the embodiment of the invention can also have following additional technical feature:
The top of described cell body is cylindrical and the bottom is a frustoconical.
Described cell body is provided with the transparent visor that is used to observe anode sludge slurries.
Described agitator is the disc type turbine agitator.Thus, can be better when stirring, air is brought in the anode sludge slurries, and air can be dispersed in the slurries, help thick sulphur and float.
Also be provided with in the described air flotation slot and be used for air fed tracheae in air flotation slot.Thus, further promote the come-up of thick sulphur.
According to a further aspect in the invention, propose a kind of anode mud treatment equipment, comprising: air flotation slot, described air flotation slot are according to the described air flotation slot of first aspect present invention; Drying machine, described drying machine link to each other with described air flotation slot and are used to receive and dry thick sulphur of discharging from air flotation slot; Melting channel, described melting channel link to each other with drying machine and are used to melt dried thick sulphur; With the sulphur pressure filter, described sulphur pressure filter links to each other with melting channel, is used for the sulphur after press filtration is melted.
According to the anode mud treatment equipment of the embodiment of the invention, three kinds of materials in the anode sludge in an air flotation slot, have been separated simultaneously, few, the good separating effect of equipment.Sulfur-bearing height in the isolated thick sulphur has passed through dehydrating again before the fusing, the energy expenditure when further having reduced fusing.Because contain the sulphur height in the thick sulphur after the fusing, sulfide content is low, is convenient to the operation of sulphur pressure filter and the performance of usefulness.
In addition, the anode mud treatment equipment according to the embodiment of the invention can also have following additional technical characterictic:
Between air flotation slot and drying machine, be connected with filter, described filter from air flotation slot receive and filter thick sulphur and will filter after thick sulphur supply to drying machine.
Described filter is a pressure filter.
Described melting channel is the steam-melting groove.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the synoptic diagram of anode mud treatment equipment according to an embodiment of the invention; With
Fig. 2 is the operational flowchart according to the anode mud treatment equipment of the embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
Below with reference to the air flotation slot 1 of Fig. 1 description according to the anode mud treatment equipment of the embodiment of the invention.
As shown in Figure 1, air flotation slot 1 comprises cell body 11 and the agitator 12 that is arranged in the cell body 11.The top of cell body 11 is cylindrical shape, and the bottom is a frustoconical, and the bottom is provided with discharge outlet.Cell body 11 can for example glass, steel or plastics be made by the material of sulfuric acid corrosion resistant.Transparent visor (not shown) can be set on the cell body 11, for example transparent visor can be arranged on the discharge outlet place, be used to observe the anode sludge slurries in the air flotation slot 1, especially, when anode sludge slurries precipitate and separate in air flotation slot becomes different layer, when discharging different layers, be used to observe the different layers of discharge.
Agitator 12 is used for the anode sludge slurries in the air flotation slot 1 are stirred.In a concrete example, agitator 12 is that disc type turbine agitator and rotating speed are adjustable, and the disc type turbine agitator can be brought into air in the slurries when stirring anode sludge slurries, make air dispersion simultaneously, more advantageously make the sulphur in the slurries float thus.Disc type turbine agitator for example disc type turbine agitator is made by titanium or 316L corrosion-resistant steel.
Alternatively, in air flotation slot 1, can be provided with air lead 13, be used for the slurries bubbling air in air flotation slot 1 when stirring, thereby more advantageously make sulphur float.
Mainly contain sulphur (usually about 90%) in the anode sludge, second kind of material is to be rich in valuable metal in sulfide (for example nickelous sulfide and cupric sulfide) (platinum for example, lead, gold and silver), material is the vitriol of nickel and copper in the 3rd, and they are soluble in water, can separate with sulphur and sulfide solid.
According to the hydrophobicity and the proportion of above-mentioned heterogeneity, in water, can make above-mentioned three kinds of separating substances by air-float method.By in air flotation slot 1, stirring, when stopping to stir the anode sludge slurries that make after the stirring then and in air flotation slot 1, stopping one section, anode sludge slurries precipitate and separate in the air flotation slot 1 is three layers: top layer is thick sulphur C, the spumescence latax that promptly contains thick sulphur, the middle level is light green aqueous solution B, wherein dissolved in single nickel salt and copper sulfate, bottom is the bigger sulfide A of proportion.Thus,, can sequentially give off above-mentioned three layers of material respectively, thus thick sulphur C, the sulfide A that contains valuable metal be separated with the aqueous solution B that dissolves in single nickel salt and copper sulfate by the discharge outlet of air flotation slot 1 bottom.
According to air flotation slot 1 of the present invention, can utilize the different hydrophobicitys and the proportion of the material in the anode sludge slurries by stirring, slurries are divided into three layers, thereby order is discharged separation, device structure is simple, become local, the sulphur content height in the thick sulphur, thus overcome the defective of traditional pressure filter.
Below with reference to the anode mud treatment equipment of Fig. 1 description according to the embodiment of the invention.
As shown in Figure 1, anode mud treatment equipment comprises air flotation slot 1, filter 2, drying machine 3, melting channel 4 and sulphur pressure filter 5.
Air flotation slot 1 described above no longer is repeated in this description here.
Filter 2 links to each other with the relief outlet of air flotation slot 1, and the thick sulphur of discharging from air flotation slot 1 is delivered to filter 2 and filtered, thereby leaches solution wherein, makes that the water content among the thick sulphur C further reduces, and the solution that leaches send potroom to carry out electrolysis.Filter 2 for example can be pressure filter.
Drying machine 3 links to each other with filter 2, and the thick sulphur after the filtration is sent to drying machine 3 and carries out drying.Drying machine 3 for example is a steam dryer, by the drying of drying machine 3, can further reduce the water content in the thick sulphur, thereby reduces the steam consumption in the follow-up melting channel 4.
Melting channel 4 links to each other with drying machine 3, and dried thick sulphur is sent to fusing in the melting channel 4.Be provided with vapour pipe 42 in the melting channel 4, be used to feed steam, thereby melt thick sulphur.Certainly, the present invention is not limited to the thick sulphur of steam-melting.Also be provided with whipping appts 41 in the melting channel 4, whipping appts 41 is used for stirring the thick sulphur of fusing, thereby accelerates the fusing of thick sulphur.
Below with reference to Fig. 2 the operating process of anode mud treatment equipment is according to an embodiment of the invention described.
As shown in Figure 2, at first the anode sludge and water are joined in the air flotation slot 1, antianode mud carries out pulp to form anode sludge slurries, and for example, the water-solid ratio of the anode sludge can be 4.Certainly, anode sludge slurries are not limited to form in air flotation slot 1.
Stir by disc type turbine agitator 41 antianode mud liquid in air flotation slot 1, disc type turbine agitator 41 is brought air in the slurries into when stirring, and can make and be beneficial to air dispersion sulphur thus and float.Alternatively, can be in slurries when stirring bubbling air, more help the sulphur come-up.
After stirring the time of pre-fixed length, stop to stir, and make anode sludge slurries after the stirring in air flotation slot 1, stop time of pre-fixed length, for example 0.5-2 hour.
As mentioned above, the anode sludge mainly comprises three kinds of materials: thick sulphur, contain the vitriol of the sulfide of valuable metal and nickel, copper, and wherein the vitriol of nickel, copper dissolves in water, and therefore the form with the aqueous solution exists, and sulphur and sulfide are water-insoluble solid.
Because the hydrophobicity of above-mentioned three kinds of materials and the difference of proportion, therefore by after stirring and stopping the time of pre-fixed length, anode sludge slurries precipitate and separate in the air flotation slot 1 is three layers: top layer is the thick sulphur C of xanchromatic, the spumescence latax that promptly contains thick sulphur, the middle level is light green aqueous solution B, wherein dissolved in single nickel salt and copper sulfate, bottom is the bigger chocolate sulfide A of proportion.
Sequentially discharge sulfide A, aqueous solution B and thick sulphur C successively from the relief outlet of air flotation slot 1 bottom, when discharging, can observe the discharge of different layers by transparent visor.Certainly, also color sensor can be set, control the discharge of different layers automatically.Also contain a spot of sulfide A among the thick sulphur C, compare with traditional treatment method, the content of the sulfide A among the thick sulphur C reduces greatly, thus, helps follow-up thick sulphur press filtration.
Alternatively,,, after discharging sulfide A and aqueous solution B, can in air flotation slot 1, add defoamer and stir, thereby help the discharge of thick sulphur C for the ease of the discharge of thick sulphur C because the thick sulphur C that is positioned at top layer is the spumescence latax.
The sulfide A that discharges can send the smeltery to carry out metallurgy, to reclaim valuable metal wherein.The aqueous solution B send potroom, to reclaim nickel and copper wherein.
The thick sulphur C that discharges delivers to filter 2 and filters, and leaching solution B wherein, thereby obtains preliminarily dried.The solution B that leaches also can be delivered to potroom and reclaim.
Thick sulphur C after the filtration carries out drying by steam dryer 3, delivers to melting channel 4 then and melts, and has carried out drying owing to enter into the thick sulphur of melting channel 4, has saved ability consumption when therefore melting greatly.
Thick sulphur C after the fusing delivers to sulphur pressure filter 5 and carries out press filtration, thereby sulphur C is separated with sulfide A, obtains clean sulphur D.Isolated sulfide can send the smeltery to handle, and reclaims valuable metal etc.
Because carried out separating of sulphur and sulfide in air flotation slot 1, the sulfide that contains in the therefore thick sulphur reduces greatly, thick sulphur sulfur-bearing height, impurity is few, is convenient to the operation of sulphur pressure filter, and labour intensity is little, the productivity height does not have the sulfur dioxide gas body pollution again.For those of ordinary skill in the art as can be known, the sulfide that contains in the thick sulphur is many more, is unfavorable for the operation of sulphur pressure filter more, and the sulfide content in the therefore thick sulphur reduces, not only can improve the purity of clean sulphur, and help bringing into play the usefulness of sulphur pressure filter.
According to the anode mud treatment equipment of the embodiment of the invention, three kinds of materials in the anode sludge in an air flotation slot, have been separated simultaneously, few, the good separating effect of equipment.
Sulfur-bearing height in the isolated thick sulphur has passed through dehydrating again before the fusing, the energy expenditure when further having reduced fusing.
Because contain the sulphur height in the thick sulphur after the fusing, sulfide content is low, is convenient to the operation of sulphur pressure filter and the performance of usefulness.
Need to prove, though be that example has been described the present invention with recovery sulphur and valuable metal from byproduct-anode sludge of producing nickel above, but the present invention is not limited to handle the above-mentioned anode sludge, for those having ordinary skill in the art will appreciate that, the present invention can also be used for handling the leached mud of hydrometallurgy, therefrom recovery sulphur and valuable metal.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment under the situation that does not break away from principle of the present invention and aim, scope of the present invention is limited by claim and equivalent thereof.
Claims (9)
1. an air flotation slot that is used to handle the anode sludge is characterized in that, comprising:
Cell body, described cell body open-top and bottom are formed with relief outlet; With
Agitator, described agitator are arranged on and are used for the intravital anode sludge slurries of steel basin in the cell body.
2. the air flotation slot that is used to handle the anode sludge according to claim 1 is characterized in that, the top of described cell body is cylindrical and the bottom is a frustoconical.
3. the air flotation slot that is used to handle the anode sludge according to claim 1 is characterized in that, described cell body is provided with the transparent visor that is used to observe anode sludge slurries.
4. the air flotation slot that is used to handle the anode sludge according to claim 1 is characterized in that, described agitator is the disc type turbine agitator.
5. the air flotation slot that is used to handle the anode sludge according to claim 1 is characterized in that, also is provided with in the described air flotation slot to be used for air fed tracheae in air flotation slot.
6. an anode mud treatment equipment is characterized in that, comprising:
Air flotation slot, described air flotation slot are according to each described air flotation slot among the claim 1-5;
Drying machine, described drying machine link to each other with described air flotation slot and are used to receive and dry thick sulphur of discharging from air flotation slot;
Melting channel, described melting channel link to each other with drying machine and are used to melt dried thick sulphur; With
The sulphur pressure filter, described sulphur pressure filter links to each other with melting channel, is used for the sulphur after press filtration is melted.
7. anode mud treatment equipment according to claim 6 is characterized in that, is connected with filter between air flotation slot and drying machine, described filter from air flotation slot receive and filter thick sulphur and will filter after thick sulphur supply to drying machine.
8. anode mud treatment equipment according to claim 6 is characterized in that, described filter is a pressure filter.
9. anode mud treatment method according to claim 6 is characterized in that, described melting channel is the steam-melting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101029189A CN101838087B (en) | 2010-01-28 | 2010-01-28 | Anode mud treatment equipment and air flotation slot thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101029189A CN101838087B (en) | 2010-01-28 | 2010-01-28 | Anode mud treatment equipment and air flotation slot thereof |
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| CN101838087A true CN101838087A (en) | 2010-09-22 |
| CN101838087B CN101838087B (en) | 2012-04-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329965A (en) * | 2011-09-28 | 2012-01-25 | 界首市骏马工贸有限公司 | Device and method for separating lead, antimony slag and alkaline liquor from lead-refined alkali slag by using one-step method |
| CN103386370A (en) * | 2012-05-11 | 2013-11-13 | 苏州市金翔钛设备有限公司 | Gas floating tank applied to treatment of anode mud |
| CN105358721A (en) * | 2013-07-03 | 2016-02-24 | 住友金属矿山株式会社 | Iron manufacturing-use hematite production method |
-
2010
- 2010-01-28 CN CN2010101029189A patent/CN101838087B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329965A (en) * | 2011-09-28 | 2012-01-25 | 界首市骏马工贸有限公司 | Device and method for separating lead, antimony slag and alkaline liquor from lead-refined alkali slag by using one-step method |
| CN103386370A (en) * | 2012-05-11 | 2013-11-13 | 苏州市金翔钛设备有限公司 | Gas floating tank applied to treatment of anode mud |
| CN105358721A (en) * | 2013-07-03 | 2016-02-24 | 住友金属矿山株式会社 | Iron manufacturing-use hematite production method |
| CN105358721B (en) * | 2013-07-03 | 2017-03-08 | 住友金属矿山株式会社 | The manufacture method of ferrum bloodstone processed |
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| Publication number | Publication date |
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| CN101838087B (en) | 2012-04-18 |
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