CN205328645U - Tombarthite processing waste water evaporate and separate device - Google Patents
Tombarthite processing waste water evaporate and separate device Download PDFInfo
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- CN205328645U CN205328645U CN201620019442.5U CN201620019442U CN205328645U CN 205328645 U CN205328645 U CN 205328645U CN 201620019442 U CN201620019442 U CN 201620019442U CN 205328645 U CN205328645 U CN 205328645U
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a industrial wastewater treatment field, a tombarthite processing waste water evaporate and separate device, including evaporimeter, knockout drum, pre -heater, water storage tank and vacuum pump unit, the evaporimeter steam inlet, condensate outlet, circulating inlet and loop exit have, the knockout drum waste water entry, wastewater recirculation entry, wastewater outlet and secondary vapor outlet have, the pre -heater feed inlet, silo outlet, flash steam entry and liquid outlet have, steam inlet be connected with the vapour source, circulating inlet is connected with the wastewater outlet, the loop exit with the wastewater recirculation entry linkage, waste water entry with silo outlet connects, secondary vapor outlet with the flash steam entry linkage, the liquid outlet is connected the water storage tank, the water storage tank is sealed tank body, the water storage tank inner chamber is connected the vacuum pump unit. Waste water evaporative concentration is effectively processed with the tombarthite to this application device, and hydrochloric acid and oxalic acid can recycle.
Description
Technical field
This utility model relates to field of industrial waste water treatment, particularly relates to a kind of rare earth processing waste water evaporating separation device。
Background technology
Rare earth waste recovering rare earth element obtains rare earth metal through oxidizing roasting, grinding, acid-soluble, extraction, precipitation, calcination, electrolysis。Extract and separate is the main method 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。
Wherein acid strong in oxalic acid precipitation acid waste water。This type of Non-aqueous processing method original is to neutralize with carbon dust and medicine to reach pH value requirement, by discharging after plate filter pressing, clarification again。This type of method produces lime mud, and enterprise can produce substantial amounts of lime mud in consecutive production process, makes the plot ratio that enterprise stacks get more and more, progressively constrains the development of enterprise, and this type of processing method is relatively costly。
Utility model content
The purpose of this utility model is to overcome prior art to there is the defect producing large quantities of lime slag in prior art middle rare earth processing waste water processing procedure, it is provided that a kind of rare earth processing waste water evaporating separation device。
This utility model solves its technical problem and be the technical scheme is that a kind of rare earth processing waste water evaporating separation device, including vaporizer, knockout drum, preheater, water tank and vacuum pump unit；Described vaporizer has steam inlet, condensation-water drain, loop head and loop exit；Described knockout drum has waterwater entrance, recycling waste water entrance, wastewater outlet and indirect steam outlet；Described preheater has feed(raw material)inlet, material outlet, indirect steam entrance and liquid outlet；Described steam inlet is connected with vapour source, described loop head is connected with wastewater outlet, described loop exit is connected with described recycling waste water entrance, described waterwater entrance is connected with described material outlet, the outlet of described indirect steam is connected with described indirect steam entrance, described liquid outlet connects described water tank, and described water tank is sealed shell of tank, and described water tank inner chamber connects described vacuum pump unit。
As preferably, for making waste water circulating and evaporating between vaporizer and knockout drum, being provided with circulating pump between described loop head and wastewater outlet。
As preferably, being additionally provided with bypass branch between described loop head and wastewater outlet, described bypass branch is connected to solid-liquid separator。Utilize solid-liquid separator effectively the concentrated solution after evaporation can be carried out solid-liquid separation and isolate oxalic acid crystallization, recycle。
Further, described condensation-water drain is connected to steam generator, and the steam (vapor) outlet of described steam generator is connected with described steam inlet。Condensate temperature in vaporizer is higher, is directly passed into steam generator and produces steam, save the energy, reduces energy waste。
Further, described steam generator is boiler。
As preferably, for the vacuum regulated, control in device, described water tank is provided with emptying pipeline。
Beneficial effect: utilizing vaporizer and knockout drum that rare earth processing waste water is effectively evaporated concentration in the application so that wherein hydrochloric acid can be discharged with indirect steam, recovery of oxalic acid utilizes, it is to avoid large quantities of lime slag produces so that twice laid。
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail。
Fig. 1 is this utility model apparatus structure schematic diagram。
Wherein: 1. vaporizer, 11. loop heads, 12. steam inlets, 13. condensation-water drains, 14. loop exit, 2. separator, 21. waterwater entrances, 22. recycling waste water entrances, 23. indirect steam exports, 24. wastewater outlets, 3. preheater, 31. indirect steam entrances, 32. feed(raw material)inlet, 33. liquid outlets, 34. material outlets, 4. water tank, 5. vacuum pump unit, 6. vapour source, 7. steam generator, 8. circulating pump, 9. solid-liquid separator。Where the dotted line signifies that steam or indirect steam route, double dot dash line represents condensed water route, and solid line represents waste water or concentrated solution route。
Detailed description of the invention
Embodiment
As it is shown in figure 1, a kind of rare earth processing waste water evaporating separation device, including vaporizer 1, knockout drum, preheater 3, water tank 4 and vacuum pump unit 5；Described vaporizer 1 has steam inlet 12, condensation-water drain 13, loop head 11 and loop exit 14；Described knockout drum has waterwater entrance 21, recycling waste water entrance 22, wastewater outlet 24 and indirect steam outlet 23；Described preheater 3 has feed(raw material)inlet 32, material outlet 34, indirect steam entrance 31 and liquid outlet 33；Described steam inlet 12 is connected with vapour source 6, it is connected by circulating pump 8 between described loop head 11 and wastewater outlet 24, it is additionally provided with bypass branch between described loop head 11 and wastewater outlet 24, described bypass branch is connected to solid-liquid separator 9, described loop exit 14 is connected with described recycling waste water entrance 22, described waterwater entrance 21 is connected with described material outlet 34, described indirect steam outlet 23 is connected with described indirect steam entrance 31, described liquid outlet 33 connects described water tank 4, described water tank 4 is sealed shell of tank, it is provided with emptying pipeline, described water tank 4 inner chamber connects described vacuum pump unit 5。
Described condensation-water drain 13 is connected to steam generator 7, and the steam (vapor) outlet of described steam generator 7 is connected with described steam inlet 12。Steam generator 7 described in the present embodiment is boiler。
Operation principle is as follows, start vacuum pump unit 5, make in vaporizer 1 and knockout drum in negative pressure, to reduce waste water boiling point, the raw steam of vapour source 6 is passed into knockout drum by rare earth processing waste water by preheater 3, and circulate between knockout drum and vaporizer 1, waste water in vaporizer 1 is circulated heating by steam, when waste water is after circulating-heating to evaporating temperature, knockout drum completes gas-liquid separation, indirect steam exports 23 entrance preheaters 3 through indirect steam and waste water in it is preheated, concentrated solution passes into solid-liquid separator 9 and carries out solid-liquid separation, isolated solid is oxalic acid, mother solution reenters circulating and evaporating system and is evaporated concentration。The condensed water formed in preheater 3 passes into water tank 4。The condensed water that vaporizer 1 endogenous steam is formed, passes into boiler and forms new steam, as the raw steam of vapour source 6。
Should be appreciated that specific embodiment described above is only for explaining this utility model, be not used to limit this utility model。The apparent change extended out by spirit of the present utility model or variation are still among protection domain of the present utility model。
Claims (6)
1. a rare earth processing waste water evaporating separation device, it is characterised in that: include vaporizer (1), knockout drum, preheater (3), water tank (4) and vacuum pump unit (5)；Described vaporizer (1) has steam inlet (12), condensation-water drain (13), loop head (11) and loop exit (14)；Described knockout drum has waterwater entrance (21), recycling waste water entrance (22), wastewater outlet (24) and indirect steam outlet (23)；Described preheater (3) has feed(raw material)inlet (32), material outlet (34), indirect steam entrance (31) and liquid outlet (33)；Described steam inlet (12) is connected with vapour source (6), described loop head (11) is connected with wastewater outlet (24), described loop exit (14) is connected with described recycling waste water entrance (22), described waterwater entrance (21) is connected with described material outlet (34), described indirect steam outlet (23) is connected with described indirect steam entrance (31), described liquid outlet (33) connects described water tank (4), described water tank (4) is sealed shell of tank, described water tank (4) inner chamber connects described vacuum pump unit (5)。
2. rare earth processing waste water evaporating separation device according to claim 1, it is characterised in that: it is provided with circulating pump (8) between described loop head (11) and wastewater outlet (24)。
3. rare earth processing waste water evaporating separation device according to claim 1, it is characterized in that: be additionally provided with bypass branch between described loop head (11) and wastewater outlet (24), described bypass branch is connected to solid-liquid separator (9)。
4. rare earth processing waste water evaporating separation device according to claim 1, it is characterized in that: described condensation-water drain (13) is connected to steam generator (7), and the steam (vapor) outlet of described steam generator (7) is connected with described steam inlet (12)。
5. rare earth processing waste water evaporating separation device according to claim 4, it is characterised in that: described steam generator (7) is boiler。
6. rare earth processing waste water evaporating separation device according to claim 1, it is characterised in that: described water tank (4) is provided with emptying pipeline。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620019442.5U CN205328645U (en) | 2016-01-08 | 2016-01-08 | Tombarthite processing waste water evaporate and separate device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620019442.5U CN205328645U (en) | 2016-01-08 | 2016-01-08 | Tombarthite processing waste water evaporate and separate device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205328645U true CN205328645U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620019442.5U Active CN205328645U (en) | 2016-01-08 | 2016-01-08 | Tombarthite processing waste water evaporate and separate device |
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| Country | Link |
|---|---|
| CN (1) | CN205328645U (en) |
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2016
- 2016-01-08 CN CN201620019442.5U patent/CN205328645U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Zou Quzhen Zhonglou District Longtan Village 213000 Jiangsu city of Changzhou Province Patentee after: Medium Rare Earth (Changzhou) New Rare Earth Materials Co., Ltd. Address before: Zou Quzhen Zhonglou District Longtan Village 213000 Jiangsu city of Changzhou Province Patentee before: China Aluminum Rare Earth (Changzhou) Co., Ltd. |