CN204022613U - Rare earth waste recovering rare earth integrated wastewater treatment plant - Google Patents
Rare earth waste recovering rare earth integrated wastewater treatment plant Download PDFInfo
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- CN204022613U CN204022613U CN201420451810.4U CN201420451810U CN204022613U CN 204022613 U CN204022613 U CN 204022613U CN 201420451810 U CN201420451810 U CN 201420451810U CN 204022613 U CN204022613 U CN 204022613U
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Abstract
The utility model discloses a kind of rare earth waste recovering rare earth integrated wastewater treatment plant, solve and solve saponification waste-water in rare earth removal process, carbon ammonium precipitation waste water, oxalic acid precipitation waste water handling problem, be characterized in being set up in parallel waste water tank (1), paper blotter press (2), to size mixing tank (3), be connected to each other, tank (3) of sizing mixing connects a stripping tower (4), stripping tower (4) one tunnel connects ammonia store groove (5), another connection aeration tank, road (6), connection absorption tower, tunnel, aeration tank (6) (8), another road connects 1st effective evaporator (7), absorption tower (8) one tunnel connects recycle pump (10), recycle pump (10) another road returns to absorption tower (8), 1st effective evaporator (7) one tunnel connects 2nd effect evaporator (9), another road connects pure water storage tank (13), 2nd effect evaporator (9) connects triple-effect evaporator (11), triple-effect evaporator (11) connects paper blotter press (12), another road of paper blotter press (12) returns tank of sizing mixing (3), compared with the prior art, there is technique simple possible, convenient, flexible, cost is low, effective, the beneficial effect that efficiency is high, saponification waste-water in rare earth removal process, carbon ammonium precipitation waste water, oxalic acid precipitation wastewater treatment.
Description
Technical field
The utility model belongs to the technical field that industrial wastewater treatment device makes, and is specifically related to a kind of rare earth waste recovering rare earth integrated wastewater treatment plant.Be adapted to saponification waste-water in rare earth removal process, carbon ammonium precipitation waste water, oxalic acid precipitation wastewater treatment.
Background technology:
Rare earth waste recovering rare earth element obtains rare earth metal through oxidizing roasting, grinding, acid-soluble, extraction, precipitation, calcination, electrolysis.Extracting and separating is the main method of producing high-purity rare-earth compound and metal, and oxalic acid precipitation or carbon ammonium precipitation produce rare earth oxalate or carbonated rare earth.In the process of whole neodymium iron boron waste material recovering rare earth, the main waste water of generation is saponification waste-water, oxalic acid precipitation acid waste water, carbonate deposition waste water.The main NH containing high density in saponification waste-water
4cl, also have the microemulsion of some saponification organic phases, such waste water can process by the method for Production Wastewater By Combined Acidification And Demulsification and condensing crystal, but energy consumption is high.Oxalic acid precipitation waste water contains a small amount of oxalic acid, conventional limestone vegetation, but the waste residue that rear generation is a large amount of.
Utility model content:
The utility model overcomes above deficiency exactly, there is provided a kind of and thoroughly solve saponification waste-water, carbon ammonium precipitation waste water, oxalic acid precipitation waste water handling problem in rare earth removal process, technique simple possible, convenient, flexible, cost is low, effective, the rare earth waste recovering rare earth integrated wastewater treatment plant that efficiency is high.
The technical solution of the utility model realizes like this, described rare earth waste recovering rare earth integrated wastewater treatment plant, it is characterized in that being set up in parallel waste water tank 1, paper blotter press 2, to size mixing tank 3, be connected to each other, tank 3 of sizing mixing connects a stripping tower 4, stripping tower 4 one tunnel connects ammonia store groove 5, another connection aeration tank, road 6, connection absorption tower, aeration tank 6 one tunnel 8, another road connects 1st effective evaporator 7, absorption tower 8 one tunnel connects recycle pump 10, another road of recycle pump 10 returns to absorption tower 8, 1st effective evaporator 7 one tunnel connects 2nd effect evaporator 9, another road connects pure water storage tank 13, 2nd effect evaporator 9 connects triple-effect evaporator 11, triple-effect evaporator 11 connects paper blotter press 12, another road of paper blotter press 12 returns tank 3 of sizing mixing.Its principle of work is the pH value adjusting the mixed solution of saponification waste-water, oxalic acid precipitation acid waste water and carbonate deposition waste water with soda water (the electrolytic etching of metal stove waste material containing rare earth fluoride adds sheet alkali through alkali converter calcination after washing), then stripping tower is entered, ammonia nitrogen stripping is separated, reclaim ammoniacal liquor, after triple effect evaporation, pure water return mechanism utilizes, mixing salt solution export trade after concentrated.
Compared with the prior art, have and thoroughly solve saponification waste-water, carbon ammonium precipitation waste water, oxalic acid precipitation waste water handling problem in rare earth removal process, technique simple possible, convenient, flexible, cost is low, effective, the beneficial effect that efficiency is high for the utility model.
Accompanying drawing illustrates:
Accompanying drawing 1 is the utility model structural representation
In figure: 1. waste water tank, 2. paper blotter press 2,3. size mixing tank, 4. stripping tower, 5. store groove, 6. aeration tank, 7. 1st effective evaporator, 8. absorption tower, 9. 2nd effect evaporator, 10. recycle pump, 11. triple-effect evaporators, 12. paper blotter presses, 13. pure water storage tanks.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail, rare earth waste recovering rare earth integrated wastewater treatment plant as shown in Figure 1, it is be set up in parallel waste water tank 1 that its result is arranged, paper blotter press 2, to size mixing tank 3, be connected to each other, tank 3 of sizing mixing connects a stripping tower 4, stripping tower 4 one tunnel connects ammonia store groove 5, another connection aeration tank, road 6, connection absorption tower, aeration tank 6 one tunnel 8, another road connects 1st effective evaporator 7, absorption tower 8 one tunnel connects recycle pump 10, another road of recycle pump 10 returns to absorption tower 8, 1st effective evaporator 7 one tunnel connects 2nd effect evaporator 9, another road connects pure water storage tank 13, 2nd effect evaporator 9 connects triple-effect evaporator 11, triple-effect evaporator 11 connects paper blotter press 12, another road of paper blotter press 12 returns tank 3 of sizing mixing.
Embodiment
(1) the electrolytic etching of metal stove waste residue containing 55% rare earth fluoride is added sheet alkali, stir through mixing machine, alkali converter alkali add water after turning roasting, ball mill grinding carry out washing, after sedimentation and filtration process alkali formula rare earth and 90%, 75% and the soda liquid of lower concentration, the soda liquid return mechanism of lower concentration, the soda liquid of 90% and 75% is to the utility model.
(2) by being added to the waste water tank of 10000L after 2500kg oxalic acid washes, the mixing of 1700kg ammonia soap waste water and stirring, add 2200kg carbon ammonium precipitation mother liquor and carbon ammonium washing water, adjust pH value to 5-8, then mix and blend 30-40min.
(3) mixing solutions is squeezed into paper blotter press and carry out press filtration, the trace rare-earth element that contains is formed carbonated rare earth reclaim in waste water, filtrate squeezing into tank of sizing mixing is sized mixing.
(4) first add 75% soda liquid 800L in tank and size mixing sizing mixing, then the soda liquid adjustment pH value of 90% is added to 11-13, through stripping tower at 93-98 DEG C of temperature with the warm air stripping of vapour-liquid ratio 3000-3700:1, be collected into ammoniacal liquor storage tank after ammonia aeration being separated condensing cooling, ammonia concn is 10-11N.Stripping liquid after stripping contains a small amount of ammonia, through aeration tank, the ammonia that non-stripping goes out is carried out aeration stripping, and absorb through absorption tower, absorption liquid returns tank of sizing mixing.
(5) solution after aeration is mainly containing Ca
2+, Al
3+, Na
+, Cl
-, F
-, add strong lye in the solution, fully stir, regulate pH value to 8-9.
(6) solution of adjustment pH value is entered 1st effective evaporator, 2nd effect evaporator, triple-effect evaporator successively by liquid concentration, the pure water evaporated returns production system and enters extraction, precipitation workshop section, and concentrated solution obtains NaF, NaCl, AlCl through paper blotter press press filtration
3, CaCl
2, AlF
3, CaF
2etc. the mixture of several material.
Claims (1)
1. rare earth waste recovering rare earth integrated wastewater treatment plant, it is characterized in that being set up in parallel waste water tank (1), paper blotter press (2), to size mixing tank (3), be connected to each other, tank (3) of sizing mixing connects a stripping tower (4), stripping tower (4) one tunnel connects ammonia store groove (5), another connection aeration tank, road (6), connection absorption tower, tunnel, aeration tank (6) (8), another road connects 1st effective evaporator (7), absorption tower (8) one tunnel connects recycle pump (10), recycle pump (10) another road returns to absorption tower (8), 1st effective evaporator (7) one tunnel connects 2nd effect evaporator (9), another road connects pure water storage tank (13), 2nd effect evaporator (9) connects triple-effect evaporator (11), triple-effect evaporator (11) connects paper blotter press (12), another road of paper blotter press (12) returns tank of sizing mixing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451810.4U CN204022613U (en) | 2014-08-05 | 2014-08-05 | Rare earth waste recovering rare earth integrated wastewater treatment plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451810.4U CN204022613U (en) | 2014-08-05 | 2014-08-05 | Rare earth waste recovering rare earth integrated wastewater treatment plant |
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| Publication Number | Publication Date |
|---|---|
| CN204022613U true CN204022613U (en) | 2014-12-17 |
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| CN201420451810.4U Active CN204022613U (en) | 2014-08-05 | 2014-08-05 | Rare earth waste recovering rare earth integrated wastewater treatment plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948361A (en) * | 2016-06-28 | 2016-09-21 | 中铝广西国盛稀土开发有限公司 | Recovery system of rare-earth industrial wastewater |
| CN105948359A (en) * | 2016-06-28 | 2016-09-21 | 中铝广西国盛稀土开发有限公司 | Treatment method for industrial wastewater of rare earth |
-
2014
- 2014-08-05 CN CN201420451810.4U patent/CN204022613U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948361A (en) * | 2016-06-28 | 2016-09-21 | 中铝广西国盛稀土开发有限公司 | Recovery system of rare-earth industrial wastewater |
| CN105948359A (en) * | 2016-06-28 | 2016-09-21 | 中铝广西国盛稀土开发有限公司 | Treatment method for industrial wastewater of rare earth |
| CN105948361B (en) * | 2016-06-28 | 2019-02-19 | 中铝广西国盛稀土开发有限公司 | The recovery system of rare-earth industry waste water |
| CN105948359B (en) * | 2016-06-28 | 2019-02-19 | 中铝广西国盛稀土开发有限公司 | A kind of processing method of rare-earth industry waste water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Jianlong Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181011 Address after: 045001 Shanxi Yangquan economic and Technological Development Zone, South Village of Yangquan (chlor alkali plant) Patentee after: Shanxi Guangsheng yuan rare earth Polytron Technologies Inc Address before: 045099 Dalian Road, Yangquan economic and Technological Development Zone, Shanxi (the two floor of the Development Zone Management Committee) Patentee before: YANGQUAN LINXING MAGNETIC MATERIALS CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210421 Address after: Floor 15-20, Berlin International Business Center, No.85, south section of Binhe West Road, Wanbailin District, Taiyuan City, Shanxi Province Patentee after: Haian new material technology (Shanxi) Co.,Ltd. Address before: 045001 Shanxi Yangquan economic and Technological Development Zone, South Village of Yangquan (chlor alkali plant) Patentee before: Shanxi Guangsheng yuan rare earth Polytron Technologies Inc. |
|
| TR01 | Transfer of patent right |