CN212741486U - Neutral leaching mechanism for zinc hydrometallurgy - Google Patents
Neutral leaching mechanism for zinc hydrometallurgy Download PDFInfo
- Publication number
- CN212741486U CN212741486U CN202021386753.8U CN202021386753U CN212741486U CN 212741486 U CN212741486 U CN 212741486U CN 202021386753 U CN202021386753 U CN 202021386753U CN 212741486 U CN212741486 U CN 212741486U
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- China
- Prior art keywords
- leaching
- feeding hole
- barrel
- pump
- supernatant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000002386 leaching Methods 0.000 title claims abstract description 74
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 29
- 239000011701 zinc Substances 0.000 title claims abstract description 29
- 230000007935 neutral effect Effects 0.000 title claims abstract description 20
- 238000009854 hydrometallurgy Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 title claims abstract description 12
- 239000006228 supernatant Substances 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 239000013049 sediment Substances 0.000 claims abstract description 9
- 239000000243 solution Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 150000004965 peroxy acids Chemical class 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 238000010009 beating Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 abstract description 4
- 230000008719 thickening Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000000498 ball milling Methods 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
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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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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model provides a neutral leaching mechanism for zinc hydrometallurgy. The neutral leaching mechanism comprises a first leaching barrel, a second leaching barrel, a concentration tank and an underwater pump, wherein the first leaching barrel, the second leaching barrel and the concentration tank are sequentially connected, the underwater pump is arranged above the concentration tank, the first leaching barrel comprises a first feeding hole, a second feeding hole and a third feeding hole which are arranged at the top end, and an overflow hole is arranged at the upper part of the first leaching barrel, and the third feeding hole is communicated with a liquid outlet pipe of the underwater pump; the second leaching barrel comprises a fourth feeding hole formed in the top end and a slurry outlet formed in the bottom end, and the overflow port automatically flows into the fourth feeding hole through a liquid level difference; the thickening tank is including locating the fifth feed inlet on top, locating the supernatant export on upper portion and locating the sediment export of bottom, the fifth feed inlet through the pump with go out the thick liquid mouth intercommunication. The utility model provides a neutral leaching mechanism leaches the bucket through returning the supernatant part second, has increased the liquid-solid ratio, has solved because of the stifled bucket phenomenon of pump that zinc calcine is thin to lead to.
Description
Technical Field
The utility model relates to a zinc hydrometallurgy technical field, in particular to zinc hydrometallurgy neutral leaching device.
Background
In the prior zinc hydrometallurgy, the leaching rate is influenced by using the coarse zinc calcine, the fine zinc calcine can cause caking due to floating and insufficient wetting degree, so-called phenomena of pump blockage and barrel blockage of raw materials are formed, and the direct yield is further influenced, the coarse particle phenomenon caused by the fine mineral powder generally does not cause attention of various smelting plants, and the problem of the quality of the mineral powder is generally only defined in the industry.
The prior art mainly adopts modes such as periodic cleaning, ball milling, hydraulic cyclone and the like to solve the problem, but adopts the modes of ball milling and hydraulic cyclone to solve the problems of long process flow, high investment cost, high energy consumption cost and the like.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a through leaching the supernatant with the neutrality and returning and leaching the bucket in order to solve the problem that prior art exists, have with low costs.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the embodiment of the utility model provides a zinc hydrometallurgy neutral leaching mechanism, leach bucket and concentrator tank and install in the submerged pump of concentrator tank, wherein including the first leaching bucket, the second that connect gradually:
the first leaching barrel comprises a first feeding hole, a second feeding hole, a third feeding hole and an overflow hole, wherein the first feeding hole, the second feeding hole and the third feeding hole are formed in the top end of the first leaching barrel, the overflow hole is formed in the upper portion of the first leaching barrel, the first feeding hole is communicated with a feeding pipeline of a mixed solution of the electrolytic waste liquid and the peracid leaching solution, and the second feeding hole is a zinc calcine feeding hole;
the second leaching barrel comprises a fourth feeding hole formed in the top end and a slurry outlet formed in the bottom end, and the overflow port automatically flows into the fourth feeding hole through a liquid level difference;
the concentration tank comprises a fifth feed inlet arranged at the top end, a supernatant outlet arranged at the upper part and a sediment outlet arranged at the bottom end, and the fifth feed inlet is communicated with the slurry outlet through a material beating pump;
the submerged pump is used for pumping the supernatant in the concentration tank, and a liquid outlet pipe of the submerged pump is communicated with the third feeding port.
Further, the supernatant outlet is used for being communicated with the purification barrel.
Further, the sediment outlet is used for being communicated with the high-acid leaching barrel.
Compared with the prior art, the utility model have following advantage and beneficial effect:
the utility model provides a zinc hydrometallurgy neutral leaching mechanism, including first leaching bucket, second leaching bucket and the concentrator bowl that connects gradually and install in the submerged pump of concentrator bowl, wherein: the first leaching barrel comprises a first feeding hole, a second feeding hole, a third feeding hole and an overflow hole, wherein the first feeding hole, the second feeding hole and the third feeding hole are formed in the top end of the first leaching barrel, the overflow hole is formed in the upper portion of the first leaching barrel, the first feeding hole is communicated with a feeding pipeline of a mixed solution of the electrolytic waste liquid and the peracid leaching solution, and the second feeding hole is a zinc calcine feeding hole; the second leaching barrel comprises a fourth feeding hole formed in the top end and a slurry outlet formed in the bottom end, and the overflow port automatically flows into the fourth feeding hole through a liquid level difference; the concentration tank comprises a fifth feed inlet arranged at the top end, a supernatant outlet arranged at the upper part and a sediment outlet arranged at the bottom end, and the fifth feed inlet is communicated with the slurry outlet through a material beating pump; the submerged pump is used for pumping the supernatant in the concentration tank, and a liquid outlet pipe of the submerged pump is communicated with the third feeding port. The utility model discloses a neutral leaching supernatant part returns the second and leaches the bucket, has increased the liquid-solid ratio that the second leaches the bucket for the zinc calcine is more favorable to the diffusion, prevents to cause the zinc calcine to form the problem of coarse grain in the neutral leaching process because of zinc calcine is too thin, float, the diffusion is not good; in addition, the neutral leaching supernatant part is returned to the second leaching barrel only by adding one submerged pump, so that the method is low in investment cost and simple to operate.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of a neutral leaching mechanism for zinc hydrometallurgy according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment of the utility model provides a neutral leaching mechanism 1 of zinc hydrometallurgy, including first leaching bucket 10, second leaching bucket 30 and the concentrator tank 50 that connect gradually and install in the submerged pump 70 of concentrator tank 50 top.
The second leaching barrel 30 comprises a fourth feeding hole arranged at the top end and a slurry outlet arranged at the bottom end, and the overflow port 17 automatically flows into the fourth feeding hole through a liquid level difference.
The reactions in the first leaching barrel 10 and the second leaching barrel 30 are both neutral leaching reactions of zinc calcine, that is, the first leaching barrel 10 and the second leaching barrel 30 are both neutral leaching barrels.
The thickening tank 50 is solid-liquid separation equipment, the thickening tank 50 including locate the top fifth feed inlet, locate the supernatant export on upper portion and locate the sediment export of bottom, the fifth feed inlet through the material pump 90 with go out the thick liquid mouth intercommunication, the supernatant export be used for with purify the bucket intercommunication, the sediment export be used for with the high-acid leaching bucket intercommunication.
The submerged pump 70 is used for extracting the supernatant in the concentration tank 50, and a liquid outlet pipe of the submerged pump 70 is communicated with the third feed port 15.
In this embodiment, after the zinc calcine pump slurry completes the neutral leaching reaction through the first leaching barrel 10 and the second leaching barrel 30 connected in series, the zinc calcine pump slurry is conveyed to the concentration tank 50 through the material-pumping pump 90 for solid-liquid separation, a part of the separated supernatant is returned to the second leaching barrel 30, and a part of the separated supernatant is sent to the purification process; the separated sediments are directly fed into the high acid leaching process.
In this embodiment, the supernatant is returned to the second leaching barrel 30, which increases the liquid-solid ratio of the second leaching barrel 30, so that the zinc calcine is more favorable for diffusion, prevents the problem that coarse particles are formed in the neutral leaching process of the zinc calcine due to the fact that the zinc calcine is too fine, floats and cannot diffuse well, avoids the phenomena of pump blockage and barrel blockage, and improves the leaching efficiency; in addition, the supernatant part is returned to the second leaching barrel 30 only by adding one submerged pump 70, so that the method is low in investment cost and simple to operate.
Preferably, the return rate of the supernatant fluid pumped back to the second leaching barrel 30 by the submerged pump 70 is 15-30%, so that the liquid-solid ratio of the second leaching barrel 30 reaches a better value on one hand, and a better metal leaching rate index is ensured on the other hand.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (3)
1. The utility model provides a zinc hydrometallurgy neutral leaching mechanism, its characterized in that, including first leaching bucket, second leaching bucket and the concentrated tank that connect gradually and install in the submerged pump of concentrated tank top, wherein:
the first leaching barrel comprises a first feeding hole, a second feeding hole, a third feeding hole and an overflow hole, wherein the first feeding hole, the second feeding hole and the third feeding hole are formed in the top end of the first leaching barrel, the overflow hole is formed in the upper portion of the first leaching barrel, the first feeding hole is communicated with a feeding pipeline of a mixed solution of the electrolytic waste liquid and the peracid leaching solution, and the second feeding hole is a zinc calcine feeding hole;
the second leaching barrel comprises a fourth feeding hole formed in the top end and a slurry outlet formed in the bottom end, and the overflow port automatically flows into the fourth feeding hole through a liquid level difference;
the concentration tank comprises a fifth feed inlet arranged at the top end, a supernatant outlet arranged at the upper part and a sediment outlet arranged at the bottom end, and the fifth feed inlet is communicated with the slurry outlet through a material beating pump;
the submerged pump is used for pumping the supernatant in the concentration tank, and a liquid outlet pipe of the submerged pump is communicated with the third feeding port.
2. The neutral leaching mechanism of zinc hydrometallurgy according to claim 1, wherein the supernatant outlet is adapted to communicate with a purification barrel.
3. The neutral leaching mechanism of zinc hydrometallurgy according to claim 1, wherein the sediment outlet is used for communicating with a high acid leaching barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021386753.8U CN212741486U (en) | 2020-07-15 | 2020-07-15 | Neutral leaching mechanism for zinc hydrometallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021386753.8U CN212741486U (en) | 2020-07-15 | 2020-07-15 | Neutral leaching mechanism for zinc hydrometallurgy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212741486U true CN212741486U (en) | 2021-03-19 |
Family
ID=75036214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021386753.8U Expired - Fee Related CN212741486U (en) | 2020-07-15 | 2020-07-15 | Neutral leaching mechanism for zinc hydrometallurgy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212741486U (en) |
-
2020
- 2020-07-15 CN CN202021386753.8U patent/CN212741486U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20210319 |