CN2921035Y - Ultrasonic calcium removal tank - Google Patents
Ultrasonic calcium removal tank Download PDFInfo
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- CN2921035Y CN2921035Y CNU2006200515102U CN200620051510U CN2921035Y CN 2921035 Y CN2921035 Y CN 2921035Y CN U2006200515102 U CNU2006200515102 U CN U2006200515102U CN 200620051510 U CN200620051510 U CN 200620051510U CN 2921035 Y CN2921035 Y CN 2921035Y
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- ultrasonic
- deliming
- groove
- calcium
- crystal
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
An ultrasonic calcium removal slot, which is a thickening slot structure, the utility model is characterized in that an ultrasonic calcium removal device is arranged in the thickening slot, the ultrasonic calcium removal device comprises an ultrasonic crystallizer, a crystal growing device, a hydraulic agitator, a crystal geosyncline. Wherein the ultrasonic crystallizer is arranged in the middle of the crystal growing device, which is the ultrasonic frequency generating device, a hydraulic agitator is provided at the lower end of the crystal growing device, which is used to drain the mixed solution of calcium sulphate crystal to the inner thickening slot from the circumferential tangential direction outflow hole of the hydraulic agitator, in addition, the lower side of the thickening slot is provided with a crystal geosyncline.
Description
Technical field
The utility model relates to a kind of device that removes calcium sulfate impurity in the aqueous solution, refer in particular to a kind of calcium sulfate impurity and the device that removes calcium sulfate impurity in the lime neutralizing acid wastewater technology reuse water in the solution of zinc sulfate, genus separation technology field of removing in the Zinc hydrometallurgy process.
Background technology
Solution of zinc sulfate in the Zinc hydrometallurgy process comprises the plurality of impurities composition, and calcium sulfate is wherein a kind of impurity, and it is brought into by zinc ore or hard water.Remove the calcium sulfate impurity in the solution of zinc sulfate, method or the device that uses has three kinds at present:
First kind is to utilize atmospheric cooling tower cooling deliming.This method or device are that solution of zinc sulfate is reduced to about 42 ℃ and is reduced to about 34 ℃ by about 42 ℃ from about 85 ℃, and calcium sulfate is separated out and deposited with crystal habit between the temperature-controlled area of these two kinds of production processes, separates with solution of zinc sulfate.Because the variation of calcium sulfate solubleness between cooling area is very little, cooling deliming weak effect is so that calcium ion is in the medium-term and long-term accumulation of the solution of zinc sulfate recycle system, the unordered deposition of calcium sulphate crystal.The unordered sedimentary consequence of calcium sulfate is, stops up the solution of zinc sulfate passage, reduces the cooling power of atmospheric cooling tower significantly, and the continuous operating time of production process is shortened, the stop production to overhaul time lengthening, and then cause electrowinning zinc output to descend.
Second kind is to utilize the thickener deliming.This method or device are that the solution of zinc sulfate that will cool to about 42 ℃ pumps in the thickener, are aided with mechanical stirring, make the thick back of calcium sulphate crystal deposition, separate with solution of zinc sulfate.This method or device are to the replenishing of cooling deliming technology, and extend atmospheric cooling tower deliming function.Because a large amount of calcium sulfate are present in the solution of zinc sulfate with the ionic state form, dense sedimentary calcium sulfate only is the part of sulfuric acid calcium crystal behind the spontaneous graining.Under the action condition of existing thickener, the spontaneous graining process of calcium sulfate is slow, and the graining amount is little, and therefore, after the thickener deliming, the calcium sulfate foreign matter content is still very high, does not still solve calcium sulphate crystal unordered sedimentary problem in the subsequent production process.
The third is under solution of zinc sulfate is in the condition of high temperature about 85 ℃, adds the anhydrous calciumsulphate crystal seed, is aided with mechanical stirring, make calcium sulfate with the anhydrous calciumsulphate form separate out, thick back deposition, separate with solution of zinc sulfate." a kind of method that removes calcium in the sulfate liquor of handling by zinc " (ZL02806244.2) in, elaborated the validity of this method, and illustrate that it removes ca efficiency and the solution of zinc sulfate calcic can be reduced to about 500mg/L, thereby make the negative impact of calcium sulfate impurity in the zinc hydrometallurgy process drop to minimum level.Compare with aforementioned two kinds of deliming methods, this high temperature deliming method has three notable features: the one, utilize calcium sulfate lower characteristic of solubleness under hot conditions, and implement the high temperature deliming, improved and removed ca efficiency.The 2nd, utilize all stable properties extremely of the chemical property of anhydrous calciumsulphate under high/low temperature condition, allow the calcium ion in the solution of zinc sulfate change the anhydrous calciumsulphate form into, improved the validity that removes calcium ion.The 3rd, utilize anhydrous calciumsulphate to add as crystal seed, strengthened calcium sulfate graining process, improved the graining amount.But, the technological temperature that obtains solution of zinc sulfate from zinc ore have high temperature, gentle normal temperature multiple, the application that adds crystal seed high temperature deliming method has certain limitation.
Zinc hydrometallurgy process generally adopts sulfuric acid as solvent, therefore produces the acid waste water that contains heavy metal ion in a large number.A kind of less expensive lime neutralizing acid wastewater technology is generally adopted by zinc hydrometallurgy factory at present, and main purpose is that cheapness removes detrimental impurity such as cadmium in the waste water, lead, reclaims multiple valuable metal, regulates the pH value of outer displacement hull.Because the intervention of lime, processed water quality calcic is very high, reaches about 800mg/L usually.The water body of this high calcium-containing effluxes, and causes new calcium sulfate to pollute to river water quality, does the reuse water use and does not then obviously meet the process water requirement.For avoiding causing new environmental pollution and reduce the water cost, around the wastewater zero discharge problem, zinc hydrometallurgy factory has done a lot of researchs, but does not also find a kind of economically viable industrialization deliming method or device so far.Therefore, necessary to the existing deliming method of zinc hydrometallurgy factory or the device improved.
The utility model content
The utility model purpose is, a kind of remove calcium sulfate impurity and the device that removes calcium sulfate impurity in the lime neutralizing acid wastewater technology reuse water in the solution of zinc sulfate are provided.
The technical scheme that proposes according to the utility model purpose is a kind of ultrasonic deliming groove, be dense groove structure, it is characterized in that: in dense groove, be provided with ultrasonic calcium-removing device, ultrasonic calcium-removing device comprises ultrasonic nucleation machine, crystal growth device, hydraulic agitator, crystallization geosyncline, described ultrasonic deliming is to adopt ultrasonic nucleation machine to promote that calcium sulfate changes crystal form into by ionic state, adopt the crystal growth device to make again to treat deliming liquid to mix and promote that calcium sulphate crystal is thick, adopt hydraulic agitator to strengthen that solid-liquid separation finishes with thickened underflow.
Principle of work of the present utility model is: ultrasonic nucleation machine is launched the 15-120KHz ultrasonic wave to the deliming liquid for the treatment of that enters the crystal growth device, strengthens calcium sulfate graining process, promotes that calcium sulfate changes crystal form into by ionic state, strengthens the calcium sulfate nucleus amount of separating out.Treat deliming liquid from what crystal growth device circumference tangentially entered, behind the intensified by ultrasonic wave graining, with the thickened underflow intense mixing in the crystal growth device that tangentially enters, contains the calcium sulfate crystal seed from crystal growth device circumference, strengthen the calcium sulphate crystal developmental process, promote that calcium sulphate crystal is thick.Mixing solutions after calcium sulphate crystal is thick relies on pumping power, discharges from the tangential liquid outlet of the circumference of hydraulic agitator, forms eddy flow in dense groove, and then strengthens solid-liquid separation.Liquid after the deliming (supernatant liquor) is discharged from the overflow of dense groove groove top, and calcium sulphate crystal enters thickened underflow, enters in the crystallization geosyncline.The coarse particles calcium sulphate crystal precipitates at settling pocket, and the fine particle calcium sulphate crystal pumps in the crystal growth device with thickened underflow, forms open circuit deliming and thickened underflow closed cycle.Realize the deliming process thus.
The utlity model has remarkable advantage:
1) adopts ultrasonic nucleation machine to promote to treat that the calcium sulfate in the deliming liquid changes crystal form into by ionic state, increased calcium sulfate graining amount.Test shows that emission certain frequency ultrasonic wave can make calcium sulfate graining speed improve 2.7 times, and its nucleus amount of separating out increases by 2.3 times.
2) adopt the crystal growth device to make and treat deliming liquid and thickened underflow intense mixing, strengthened the calcium sulphate crystal developmental process, more efficient than mechanical stirring.
3) adopt hydraulic agitator to strengthen dense process, made full use of pumping power, simplified dense groove whipping appts, reduced maintenance cost.
4) adopting crystallization geosyncline sulfate precipitate calcium crystal, is a kind of open circuit deliming measure, has reduced the crystallization deposition load of dense groove, has prolonged the clear crystalline maintenance cycle of dense groove.
5) this device adaptability is good, is applicable to high temperature, middle gentle normal temperature deliming.
Description of drawings
Fig. 1 is the utility model structural representation.
Among Fig. 1: 1, ultrasonic nucleation machine; 2, crystal growth device; 3, thickened underflow; 4, calcium sulphate crystal; 5, crystallization geosyncline; 6, dense groove; 7, hydraulic agitator; 8, liquid after the deliming; 9, treat deliming liquid.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples, but protection domain of the present utility model is not limited to the described scope of embodiment.
From accompanying drawing 1 as can be seen, the utility model is a kind of ultrasonic deliming groove, is dense groove structure, it is characterized in that: be provided with ultrasonic calcium-removing device in dense groove, ultrasonic calcium-removing device comprises ultrasonic nucleation machine, crystal growth device, hydraulic agitator, crystallization geosyncline.Wherein, ultrasonic nucleation machine is positioned at crystal growth device central authorities, be the ultrasonic frequency generating unit, be provided with hydraulic agitator in crystal growth device lower end, be used for sulfur acid calcium crystalline mixing solutions is discharged in the dense groove from the tangential liquid outlet of the circumference of hydraulic agitator, in addition, below dense groove outlet, be provided with the crystallization geosyncline.Described ultrasonic deliming is to adopt ultrasonic nucleation machine to launch certain ultrasonic frequency, strengthens calcium sulfate graining process, promotes to treat that the calcium sulfate in the deliming liquid changes crystal form into by ionic state, strengthens the calcium sulfate nucleus amount of separating out.Treat deliming liquid from what crystal growth device circumference tangentially entered, behind the intensified by ultrasonic wave graining, with the thickened underflow intense mixing in the crystal growth device that tangentially enters, contains the calcium sulfate crystal seed from crystal growth device circumference, strengthened the calcium sulphate crystal developmental process, promoted calcium sulphate crystal thick.Mixing solutions after calcium sulphate crystal is thick relies on pumping power, discharges from the tangential liquid outlet of the circumference of hydraulic agitator, forms eddy flow in dense groove, and then strengthens solid-liquid separation.Liquid after the deliming (supernatant liquor) is discharged from the overflow of dense groove groove top, and calcium sulphate crystal enters thickened underflow, enters in the crystallization geosyncline.The coarse particles calcium sulphate crystal precipitates at settling pocket, and the fine particle calcium sulphate crystal pumps in the crystal growth device with thickened underflow, forms open circuit deliming and thickened underflow closed cycle.Realize the deliming process thus.
Embodiment one
Ultrasonic deliming groove as shown in Figure 1, it comprises ultrasonic nucleation machine 1, crystal growth device 2, hydraulic agitator 7, dense groove 6, crystallization geosyncline 5.It is characterized in that: adopt ultrasonic nucleation machine 1 to make calcium sulfate change crystal form into by ionic state, adopt crystal growth device 2 to make and treat that deliming liquid 9 mixes with thickened underflow 3, promote that calcium sulphate crystal 4 is thick, adopt hydraulic agitator 7 to strengthen solid-liquid separation, adopt crystallization geosyncline 5 to realize open circuit deliming and thickened underflow closed cycle.Wherein:
The ultrasonic frequency of described ultrasonic nucleation machine is 15-120KHz.
Described ultrasonic nucleation machine can be arranged in the crystal growth device or its fluid inlet front end.
Described crystal growth device is provided with at least one circumference tangential direction mouth.
Described hydraulic agitator is provided with the tangential liquid outlet of at least one circumference.
Described dense groove is provided with at least one conical awl end.
Described crystallization geosyncline is provided with at least one settling pocket.
Its principle of work is: 1 pair of ultrasonic nucleation machine enters the deliming liquid 9 for the treatment of of crystal growth device 2 and launches the 15-120KHz ultrasonic wave, strengthens calcium sulfate graining process, promotes that calcium sulfate changes crystal form into by ionic state, strengthens the calcium sulfate nucleus amount of separating out.Treat deliming liquid from what crystal growth device circumference tangentially entered, behind the intensified by ultrasonic wave graining, with thickened underflow 3 intense mixing in the crystal growth device that tangentially enters, contains the calcium sulfate crystal seed from crystal growth device circumference, strengthen calcium sulphate crystal 4 developmental processes, promote that calcium sulphate crystal is thick.Mixing solutions after calcium sulphate crystal is thick relies on pumping power, discharges from the tangential liquid outlet of the circumference of hydraulic agitator 7, forms eddy flow in dense groove 6, and then strengthens solid-liquid separation.Liquid 8 is discharged from the overflow of dense groove groove top after the deliming, and calcium sulphate crystal enters thickened underflow, enters in the crystallization geosyncline 5.The coarse particles calcium sulphate crystal precipitates at settling pocket, and the fine particle calcium sulphate crystal pumps in the crystal growth device with thickened underflow, forms open circuit deliming and thickened underflow closed cycle.Realize the deliming process thus.
Claims (8)
1, a kind of ultrasonic deliming groove is dense groove structure, it is characterized in that: be provided with ultrasonic calcium-removing device in dense groove.
2, ultrasonic deliming groove as claimed in claim 1, it is characterized in that: described ultrasonic calcium-removing device comprises ultrasonic nucleation machine, crystal growth device, hydraulic agitator, crystallization geosyncline, wherein, ultrasonic nucleation machine is positioned at crystal growth device central authorities, be the ultrasonic frequency generating unit, be provided with in crystal growth device lower end and be used for sulfur acid calcium crystalline mixing solutions is discharged to hydraulic agitator in the dense groove from the tangential liquid outlet of the circumference of hydraulic agitator, below dense groove outlet, be provided with the crystallization geosyncline.
3, ultrasonic deliming groove as claimed in claim 1 or 2, it is characterized in that: the ultrasonic frequency of ultrasonic nucleation machine is 15-120KHz.
4, ultrasonic deliming groove as claimed in claim 1 or 2 is characterized in that: described ultrasonic nucleation machine can be arranged in the crystal growth device or its fluid inlet front end.
5, ultrasonic deliming groove as claimed in claim 1 or 2 is characterized in that: described crystal growth device is provided with at least one circumference tangential direction mouth.
6, ultrasonic deliming groove as claimed in claim 1 or 2, it is characterized in that: described hydraulic agitator is provided with the tangential liquid outlet of at least one circumference.
7, ultrasonic deliming groove as claimed in claim 1 or 2 is characterized in that: described dense groove is provided with at least one conical awl end.
8, ultrasonic deliming groove as claimed in claim 1 or 2, it is characterized in that: described crystallization geosyncline is provided with at least one settling pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200515102U CN2921035Y (en) | 2006-06-29 | 2006-06-29 | Ultrasonic calcium removal tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200515102U CN2921035Y (en) | 2006-06-29 | 2006-06-29 | Ultrasonic calcium removal tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921035Y true CN2921035Y (en) | 2007-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200515102U Expired - Fee Related CN2921035Y (en) | 2006-06-29 | 2006-06-29 | Ultrasonic calcium removal tank |
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| CN (1) | CN2921035Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884092B (en) * | 2006-06-29 | 2012-05-30 | 株洲市兴民科技有限公司 | Method for removing calcium ion in zinc sulphate solution |
| CN107233745A (en) * | 2017-07-18 | 2017-10-10 | 四川思特瑞科技有限公司 | Circulating crystallizer and circulating crystal system |
| CN111411226A (en) * | 2020-04-08 | 2020-07-14 | 甘肃稀土新材料股份有限公司 | Method for removing calcium ions in rare earth sulfate extraction separation process |
-
2006
- 2006-06-29 CN CNU2006200515102U patent/CN2921035Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884092B (en) * | 2006-06-29 | 2012-05-30 | 株洲市兴民科技有限公司 | Method for removing calcium ion in zinc sulphate solution |
| CN107233745A (en) * | 2017-07-18 | 2017-10-10 | 四川思特瑞科技有限公司 | Circulating crystallizer and circulating crystal system |
| CN111411226A (en) * | 2020-04-08 | 2020-07-14 | 甘肃稀土新材料股份有限公司 | Method for removing calcium ions in rare earth sulfate extraction separation process |
| CN111411226B (en) * | 2020-04-08 | 2022-04-05 | 甘肃稀土新材料股份有限公司 | Method for removing calcium ions in rare earth sulfate extraction separation process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20120629 |