CN205115570U - Integrated ion rare earth hydrometallurgy system - Google Patents
Integrated ion rare earth hydrometallurgy system Download PDFInfo
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- CN205115570U CN205115570U CN201520902044.3U CN201520902044U CN205115570U CN 205115570 U CN205115570 U CN 205115570U CN 201520902044 U CN201520902044 U CN 201520902044U CN 205115570 U CN205115570 U CN 205115570U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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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
The utility model discloses an integrated ion rare earth hydrometallurgy device, which integrates the functions of impurity removal, rare earth precipitation and ammonia recovery, realizes the continuous liquid feeding, continuous impurity removal, continuous rare earth precipitation, production on-line monitoring and operation automatic control of rare earth mother liquor, is movable and can be repeatedly used, and is suitable for the characteristics of rare earth mine mining point dispersion, short mining period and frequent change of hydrometallurgy workshops; and the impurity removal of the mother liquor and the precipitation of the rare earth are carried out in closed equipment, so that the leakage of the mother liquor can be effectively controlled, and the recovery rate of the rare earth is improved. Compared with traditional hydrometallurgy workshop production, adopt clean high-efficient integration ion tombarthite hydrometallurgy device, need not excavate and build a large amount of civil engineering ponds such as edulcoration pond and sedimentation tank, reduce workshop area, reduce landslide and groundwater pollution risk, make impurity removal simultaneously and tombarthite sedimentation in-process volatile ammonia recycle, reduce and soak ore agent consumption and ammonia pollution.
Description
Technical field
The utility model belongs to metal recovery and utilizes and cleaner production field, particularly relates to a kind of integrated ion rare earth hydrometallurgy system.
Background technology
Ion adsorption type re have grade low, bury the features such as shallow, point spreading.At present, China's ion adsorption type re adopts in_situ leaching mining, and hydrometallurgy workshop (mother liquid disposal workshop) carries out rare earth recovery, and hydrometallurgy workshop adopts the removal of impurities of removal of impurities pond, settling tank precipitation carbonated rare earth production technique.Hydrometallurgy workshop not only needs excavation to build a large amount of removal of impurities ponds and settling tank, workshop adopts step to arrange, have that the gradient is steep, risk of landslip is large according to landform, produce and operate by rule of thumb, multiple removal of impurities pond and settling tank alternate run, the ammonia of technological process volatilization is not recycled, the problems such as industrialization equipment is low, and have that pond body seepage control measure is simple and easy, underground water vulnerable to pollution, workshop floor space are large, hydrometallurgy workshop often changes, change after removal of impurities pond and settling tank need dismounting, cannot recycle, the environmental issues such as ecological recovery difficulty.Ion adsorption type re exploit natural resources recycling and environmental issue become one of scientific research emphasis.Along with the attention of various countries to resource recycling and the raising of pollutant emission standard, in prior art, some hydrometallurgy workshops take some innovative approachs, achieve certain effect, but the ammonia of the mode of production of the removal of impurities of removal of impurities pond, settling tank precipitating rare earth, technological process volatilization the problem such as not to be recycled and is still existed, and the equipment in hydrometallurgy workshop, equipmentization, automatization level are still very low.
Utility model content
The purpose of this utility model is the technical problem for above-mentioned existence, and provide a kind of clean and effective integration ion rare earth hydrometallurgy device, the impurity that this hydrometallurgy device can realize ion rare earth mother solution is efficiently removed, and high efficiency rare-earth reclaims, simultaneously ammonia in remanufacture.
Above-mentioned purpose is realized by following scheme:
A kind of clean and effective integration ion rare earth hydrometallurgy system, it is characterized in that, described system comprises airtight impurity removal means, rare-earth precipitation device and ammonia recycling device; Mother liquor liquid-inlet pipe accesses described impurity removal means, the mother liquor delivery pipe of described impurity removal means accesses described rare-earth precipitation device, the top of described impurity removal means and described rare-earth precipitation device is all provided with ammonia gas skirt, and this ammonia gas skirt is all connected to ammonia effuser, this ammonia effuser is connected to described ammonia recycling device.
According to above-mentioned system, it is characterized in that, described impurity removal means comprises reaction zone and solid-liquid displacement zone; Described mother liquor liquid-inlet pipe accesses described reaction zone, and on described mother liquor liquid-inlet pipe, is provided with chemical feed pipe and automatically controls chemicals dosing plant, and the intersection of described chemical feed pipe and mother liquor liquid-inlet pipe is provided with line mixer; On-line monitoring pH device and agitator is provided with in described reaction zone; Be provided with combustion chamber hopper in the bottom of described solid-liquid displacement zone, this combustion chamber hopper is connected with scum pipe, and this scum pipe is provided with deslagging switch, deslagging pump; Be connected with mother liquor delivery pipe in the side surface upper part of described solid-liquid displacement zone, this mother liquor delivery pipe is provided with mother liquor waste cock; The ammonia effuser of described impurity removal means is provided with ammonia on-Line Monitor Device.
According to above-mentioned system, it is characterized in that, described rare-earth precipitation device comprises reaction zone and comprises reaction zone and solid-liquid displacement zone; The mother liquor liquid discharge pipe of described impurity removal means accesses described reaction zone, and be provided with chemical feed pipe and automatically control chemicals dosing plant on described mother liquor liquid discharge pipe, the intersection of the mother liquor liquid discharge pipe of described chemical feed pipe and described impurity removal means is provided with line mixer; On-line monitoring pH device and agitator is provided with in described reaction zone; Be provided with rare-earth precipitation bucket in the bottom of described solid-liquid displacement zone, this rare-earth precipitation bucket is connected with rare earth delivery pipe, and this rare earth delivery pipe is provided with rare earth delivery pipe switch, rare earth emptying pump; Be connected with supernatant liquor delivery pipe in the side surface upper part of described solid-liquid displacement zone, this supernatant liquor delivery pipe is provided with supernatant liquor blow-off cock; The ammonia effuser of described rare-earth precipitation device is provided with ammonia on-Line Monitor Device.
According to above-mentioned system, it is characterized in that, described ammonia recycling device comprises ammonia absorption cell, and the top in this ammonia absorption cell is provided with ammonia absorption tower, and the ammonia effuser of described impurity removal means and rare-earth precipitation device is connected to the inlet end of described ammonia absorption tower; The sidewall of described ammonia absorption cell is provided with adsorption liquid and adds pipe, and this adsorption liquid adds and pipe is provided with adsorption liquid adds pipe switch; The side bottom of described ammonia absorption cell is provided with absorption liquid delivery pipe, this absorption liquid delivery pipe is provided with absorption liquid blow-off cock and absorption liquid emptying pump.
According to above-mentioned system, it is characterized in that, being provided with solid-liquid separation in described solid-liquid displacement zone is swash plate/tube settler.
The utility model achieves the equipment of rare earth mother solution Impurity removal and rare-earth precipitation, automatization and removableization, solves in producing Ammonia recovery environmental issue of volatilizing simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of integrated ion rare earth hydrometallurgy device of the present utility model.
Embodiment
To be described in detail the utility model embodiment below.
See Fig. 1, integrated ion rare earth hydrometallurgy system of the present utility model comprises airtight impurity removal means 1, rare-earth precipitation device 2 and ammonia recycling device 3.Mother liquor liquid-inlet pipe 4 accesses impurity removal means 1, the mother liquor delivery pipe 5 of impurity removal means 1 accesses rare-earth precipitation device 2, the top of impurity removal means 1 and rare-earth precipitation device 2 is all provided with ammonia gas skirt 6 and 7, and ammonia gas skirt 6 and 7 is all connected to ammonia effuser 8 and 9, ammonia effuser is connected to ammonia recycling device 3.
Impurity removal means 1 comprises reaction zone 10 and solid-liquid displacement zone 11, mother liquor liquid-inlet pipe 4 accesses reaction zone 10, and chemical feed pipe 12 is installed on mother liquor liquid-inlet pipe 4 and automatically controls chemicals dosing plant 13, the intersection of chemical feed pipe 12 and mother liquor liquid-inlet pipe 4 is provided with line mixer 14, on-line monitoring pH device 15 and agitator 16 is provided with in reaction zone 10, combustion chamber hopper 17 is provided with in the bottom of solid-liquid displacement zone 11, this combustion chamber hopper 17 is connected with scum pipe 18, and this scum pipe 18 is provided with deslagging switch 19, deslagging pump 20; Be connected with mother liquor delivery pipe 5 in the side surface upper part of solid-liquid displacement zone 11, this mother liquor delivery pipe 5 is provided with mother liquor waste cock 22; The ammonia effuser 8 of impurity removal means 1 is provided with ammonia on-Line Monitor Device 23.
Rare-earth precipitation device 2 comprises reaction zone and comprises reaction zone 24 and solid-liquid displacement zone 25, the mother liquor liquid discharge pipe 5 of impurity removal means 2 accesses reaction zone 24, and be provided with chemical feed pipe 26 and automatically control chemicals dosing plant 27 on mother liquor liquid discharge pipe 5, the intersection of the mother liquor liquid discharge pipe 5 of chemical feed pipe 26 and impurity removal means is provided with line mixer 28; On-line monitoring pH device 29 and agitator 30 is provided with in reaction zone 24; Be provided with rare-earth precipitation bucket 31 in the bottom of solid-liquid displacement zone 25, this rare-earth precipitation bucket 31 is connected with rare earth delivery pipe 32, and this rare earth delivery pipe 32 is provided with rare earth delivery pipe switch 33, rare earth emptying pump 34; Be connected with supernatant liquor delivery pipe 35 in the side surface upper part of solid-liquid displacement zone 25, this supernatant liquor delivery pipe 35 is provided with supernatant liquor blow-off cock 36; The ammonia effuser 9 of rare-earth precipitation device 2 is provided with ammonia on-Line Monitor Device 37.
Ammonia recycling device 3 comprises ammonia absorption cell 38, and the top in this ammonia absorption cell 38 is provided with ammonia absorption tower 39, and the ammonia effuser 8 and 9 of impurity removal means 1 and rare-earth precipitation device 2 is connected to the inlet end of ammonia absorption tower 39; The sidewall of ammonia absorption cell 38 is provided with adsorption liquid and adds pipe 40, and this adsorption liquid adds and pipe 40 is provided with adsorption liquid adds pipe switch 41; The side bottom of ammonia absorption cell 38 is provided with absorption liquid delivery pipe 42, this absorption liquid delivery pipe 42 is provided with absorption liquid blow-off cock 43 and absorption liquid emptying pump 44.
Solid-liquid separation is all adopted to be swash plate/tube settler in the solid-liquid displacement zone 11 and 25 of rare-earth precipitation device 2 and ammonia recycling device 3.
During use, open mother liquid flow rate intelligent control switch and automatically control chemicals dosing plant, initial mother liquor enters through mother liquor pipe, medicament enters through automatically controlling chemicals dosing plant, mix in line mixer with mother liquor, enter the reaction zone of on-line monitoring again, reacted mother liquor enters solid-liquid displacement zone through overflow from bottom sides, removal of impurities slag enters combustion chamber hopper, removal of impurities slag bath is drained into through deslagging pump, scum pipe, mother liquor enters rare-earth precipitation device through mother liquor delivery pipe, and volatilization ammonia is collected through ammonia gas skirt and entered ammonia effuser, then enters ammonia recycling device.
Mother liquor through impurity removal means enters rare-earth precipitation device, open and automatically control chemicals dosing plant, medicament enters through automatically controlling chemicals dosing plant, mix at line mixer with the mother liquor through impurity removal means, enter the reaction zone of on-line monitoring again, reacted mother liquor enters solid-liquid displacement zone through overflow from bottom sides, rare-earth products enters rare-earth precipitation bucket, through rare earth emptying pump, rare earth delivery pipe drains into rare-earth products precipitation pond, supernatant liquor enters leaching agent dosing pond, ore deposit by overflow through delivery pipe, volatilization ammonia is collected through ammonia gas skirt and is entered ammonia effuser, enter ammonia recycling device again.
Ammonia absorption tower is entered through ammonia effuser after the ammonia collection of impurity removal means and the volatilization of rare-earth precipitation device, absorption agent adds pipe through absorption agent and enters ammonia absorption cell, in absorption cell, complete absorption reaction, absorb saturated solution and drain into the utilization of dosing pond through emptying pump.
Principle of the present utility model is:
Impurity removal reaction principle is add ammonium hydrogencarbonate in mother liquor, about adjust ph to 5.6, in mother liquor, impurity iron reactive aluminum generates ironic hydroxide and aluminium hydroxide, and ironic hydroxide, aluminium hydroxide solvability change with pH, generates precipitation and remove under an acid stable condition.
Add ammonium hydrogencarbonate in rare-earth precipitation reaction principle mother liquor, about adjust ph to 6.6, ammonium hydrogencarbonate and rare earth react Formed acid rare earth, and carbonated rare earth solvability changes with pH, generate precipitation and be separated under an acid stable condition.
Solid-liquid separation principle adopts the good swash plate/tube settler of solid-liquid separation effect to be separated.Also radial-flow sedimentation tank, vertical sedimentation tank, horizontal sedimentation tank etc. can be selected to carry out solid-liquid separation, determine according to practical situation.
Volatilization ammonia recycling device adopts sulfuric acid as absorption agent, and ammonia nitrogen and sulfuric acid reaction generate sulfate of ammoniac, and sulfate of ammoniac is the leaching ore deposit agent of in_situ leaching technique, capable of circulationly produce for mine in_situ leaching.Also hydrochloric acid etc. can be selected as absorption agent, determine according to practical situation.
Compared with traditional rare earth hydrometallurgy workshop, clean and effective integration ion rare earth hydrometallurgy device described in the utility model has following characteristics:
1, adopt impurity removal means and rare-earth precipitation device can realize the continuous feed liquor of rare earth mother solution, removal of impurities continuously, continuously rare-earth precipitation, on-line monitoring, red-tape operati automatically, realize the equipment in hydrometallurgy workshop, industrialization, automatization and removableization.
2, adopt impurity removal means and rare-earth precipitation device can realize mother liquor removal of impurities, rare-earth precipitation to carry out in Sealing Arrangement, effectively control mother liquor seepage, improve rare earth yield.
3, adopt impurity removal means and rare-earth precipitation device, hydrometallurgy workshop does not need to excavate builds a large amount of removal of impurities ponds and settling tank, greatly reduces workshop floor space, reduces ecological damage, reduces soil erosion, reduces landslide and Groundwater Contamination Risk.
4, adopt ammonia recycling device can realize the recycling of the ammonia volatilized in Impurity removal and rare-earth precipitation process, reduce the consumption of leaching ore deposit agent, reduce ammonia and pollute.
5, the relative civil engineering pond such as the removal of impurities pond of hydrometallurgy workshop traditional mode of production and settling tank, adopt clean and effective integration ion rare earth hydrometallurgy device, equipment is removable, can reuse, and is applicable to the dispersion of rare earth mining point, exploitation cycle short, the feature that hydrometallurgy workshop often changes.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (5)
1. an integrated ion rare earth hydrometallurgy system, it is characterized in that, described system comprises airtight impurity removal means, rare-earth precipitation device and ammonia recycling device; Mother liquor liquid-inlet pipe accesses described impurity removal means, the mother liquor delivery pipe of described impurity removal means accesses described rare-earth precipitation device, the top of described impurity removal means and described rare-earth precipitation device is all provided with ammonia gas skirt, and this ammonia gas skirt is all connected to ammonia effuser, this ammonia effuser is connected to described ammonia recycling device.
2. system according to claim 1, is characterized in that, described impurity removal means comprises reaction zone and solid-liquid displacement zone; Described mother liquor liquid-inlet pipe accesses described reaction zone, and on described mother liquor liquid-inlet pipe, is provided with chemical feed pipe and automatically controls chemicals dosing plant, and the intersection of described chemical feed pipe and mother liquor liquid-inlet pipe is provided with line mixer; On-line monitoring pH device and agitator is provided with in described reaction zone; Be provided with combustion chamber hopper in the bottom of described solid-liquid displacement zone, this combustion chamber hopper is connected with scum pipe, and this scum pipe is provided with deslagging switch, deslagging pump; Be connected with mother liquor delivery pipe in the side surface upper part of described solid-liquid displacement zone, this mother liquor delivery pipe is provided with mother liquor waste cock; The ammonia effuser of described impurity removal means is provided with ammonia on-Line Monitor Device.
3. system according to claim 1, is characterized in that, described rare-earth precipitation device comprises reaction zone and comprises reaction zone and solid-liquid displacement zone; The mother liquor liquid discharge pipe of described impurity removal means accesses described reaction zone, and be provided with chemical feed pipe and automatically control chemicals dosing plant on described mother liquor liquid discharge pipe, the intersection of the mother liquor liquid discharge pipe of described chemical feed pipe and described impurity removal means is provided with line mixer; On-line monitoring pH device and agitator is provided with in described reaction zone; Be provided with rare-earth precipitation bucket in the bottom of described solid-liquid displacement zone, this rare-earth precipitation bucket is connected with rare earth delivery pipe, and this rare earth delivery pipe is provided with rare earth delivery pipe switch, rare earth emptying pump; Be connected with supernatant liquor delivery pipe in the side surface upper part of described solid-liquid displacement zone, this supernatant liquor delivery pipe is provided with supernatant liquor blow-off cock; The ammonia effuser of described rare-earth precipitation device is provided with ammonia on-Line Monitor Device.
4. system according to claim 1, it is characterized in that, described ammonia recycling device comprises ammonia absorption cell, and the top in this ammonia absorption cell is provided with ammonia absorption tower, and the ammonia effuser of described impurity removal means and rare-earth precipitation device is connected to the inlet end of described ammonia absorption tower; The sidewall of described ammonia absorption cell is provided with adsorption liquid and adds pipe, and this adsorption liquid adds and pipe is provided with adsorption liquid adds pipe switch; The side bottom of described ammonia absorption cell is provided with absorption liquid delivery pipe, this absorption liquid delivery pipe is provided with absorption liquid blow-off cock and absorption liquid emptying pump.
5. the system according to Claims 2 or 3, is characterized in that, being provided with solid-liquid separation in described solid-liquid displacement zone is swash plate/tube settler.
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| CN201520902044.3U CN205115570U (en) | 2015-11-13 | 2015-11-13 | Integrated ion rare earth hydrometallurgy system |
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| CN201520902044.3U CN205115570U (en) | 2015-11-13 | 2015-11-13 | Integrated ion rare earth hydrometallurgy system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109876617A (en) * | 2019-02-26 | 2019-06-14 | 王珍 | A kind of ion rare earth ammonia reclaimer |
| WO2020063989A1 (en) * | 2018-09-28 | 2020-04-02 | 中国恩菲工程技术有限公司 | Rare earth precipitation device and rare earth precipitation method |
| CN114457234A (en) * | 2021-07-23 | 2022-05-10 | 江西离子型稀土工程技术研究有限公司 | Rare earth impurity removal and enrichment ion exchange system and process method |
| CN114606402A (en) * | 2022-03-31 | 2022-06-10 | 龙岩市稀土开发有限公司 | Continuous treatment system and method for rare earth ore leaching mother liquor |
-
2015
- 2015-11-13 CN CN201520902044.3U patent/CN205115570U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020063989A1 (en) * | 2018-09-28 | 2020-04-02 | 中国恩菲工程技术有限公司 | Rare earth precipitation device and rare earth precipitation method |
| CN109876617A (en) * | 2019-02-26 | 2019-06-14 | 王珍 | A kind of ion rare earth ammonia reclaimer |
| CN114457234A (en) * | 2021-07-23 | 2022-05-10 | 江西离子型稀土工程技术研究有限公司 | Rare earth impurity removal and enrichment ion exchange system and process method |
| CN114606402A (en) * | 2022-03-31 | 2022-06-10 | 龙岩市稀土开发有限公司 | Continuous treatment system and method for rare earth ore leaching mother liquor |
| CN114606402B (en) * | 2022-03-31 | 2023-09-01 | 龙岩市稀土开发有限公司 | Rare earth ore leaching mother liquor continuous treatment system and treatment method thereof |
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