CN209797679U - Contain high-efficient concentrated crystallization device of salt waste water - Google Patents
Contain high-efficient concentrated crystallization device of salt waste water Download PDFInfo
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- CN209797679U CN209797679U CN201920475325.3U CN201920475325U CN209797679U CN 209797679 U CN209797679 U CN 209797679U CN 201920475325 U CN201920475325 U CN 201920475325U CN 209797679 U CN209797679 U CN 209797679U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 38
- 150000003839 salts Chemical class 0.000 title claims abstract description 33
- 238000002425 crystallisation Methods 0.000 title claims abstract description 16
- 230000008025 crystallization Effects 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 239000013078 crystal Substances 0.000 claims abstract description 53
- 239000002002 slurry Substances 0.000 claims abstract description 25
- 239000013072 incoming material Substances 0.000 claims abstract description 23
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 239000000047 product Substances 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 2
- 239000006228 supernatant Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
the utility model discloses a high-efficiency concentration and crystallization device for salt-containing wastewater, which comprises an incoming material buffer tank, an evaporative crystallizer, a secondary steam condenser, a condensate recovery tank, a crystal settling tank, a crystal slurry delivery pump, a high-level settling tank, a centrifugal machine and a product tank in sequence; the incoming material buffer tank is provided with a salt-containing wastewater feed inlet, a salt-containing wastewater return port and an incoming material buffer tank outlet, the evaporative crystallizer is provided with a crystal slurry outlet, a circulating liquid outlet, a gas phase outlet and an evaporative crystallizer inlet, a forced circulating pump is installed between the incoming material buffer tank and the evaporative crystallizer, the incoming material buffer tank outlet and the circulating liquid outlet are connected with the inlet of the forced circulating pump through a pipeline, the outlet of the forced circulating pump is connected with the evaporative crystallizer inlet and the salt-containing wastewater return port, and the gas phase outlet is connected with the inlet of the condensate recovery tank through a secondary steam condenser; this contain high-efficient concentrated crystallization device of salt waste water can the various salt waste water of efficient processing, and the rate of recovery of water reaches more than 95%, and whole flow is simple, and the range of application is wide.
Description
Technical Field
the utility model belongs to the technical field of the evaporation crystallization, concretely relates to contain high-efficient concentrated crystallization device of salt waste water.
Background
The industrial high-salt-content wastewater generally comes from the industries of chemical industry, refining, seawater utilization, papermaking, printing and dyeing and the like, according to statistical data of nearly 3 years, the high-salt-content wastewater accounts for about 10% ~ 30% of the total amount of industrial wastewater discharge, the wastewater discharge is large, the components are complex, the treatment difficulty is large, only about 80% of the wastewater can be recovered by adopting a conventional water treatment mode, along with the national supervision and accountability mechanism of wastewater treatment and water resource utilization, the standard discharge which is only simply treated cannot meet the current stage resource utilization and ecological protection standard, and the high efficiency, saving and zero discharge become the trend of industrial water.
The utility model provides a contain salt waste water treatment process is that the high concentration after handling to above-mentioned traditional water treatment process contains salt waste water and carries out further processing, through the mode of evaporation crystallization, realizes the separation of impurity and water, makes the rate of recovery of water reach more than 95%, will contain salt impurity simultaneously and handle into the solid salt crystallization, is convenient for concentrate recovery processing to realize the high zero release that contains salt waste water.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a contain high-efficient concentrated crystallization device of salt waste water to solve the high problem of the zero release that contains salt waste water.
In order to achieve the above object, the utility model provides a following technical scheme: an efficient concentration and crystallization device for salt-containing wastewater sequentially comprises an incoming material buffer tank, an evaporative crystallizer, a secondary steam condenser and a condensate recovery tank;
the system comprises an incoming material buffer tank, an evaporative crystallizer, a condensate recovery tank, a secondary steam condenser, a circulating pump, a circulating liquid outlet, a gas phase outlet and an evaporative crystallizer, wherein the incoming material buffer tank is provided with a saline wastewater feed inlet, a saline wastewater return port and an incoming material buffer tank outlet;
the device also comprises a crystal settling tank, a crystal slurry conveying pump, a high-level settling tank, a centrifugal machine and a product tank in sequence;
The evaporative crystallizer is connected with an inlet through a crystal slurry outlet and a crystal settling tank, an inlet of the forced circulation pump is connected with a clear liquid outlet I of the crystal settling tank, the crystal slurry conveying pump is respectively connected with a crystal slurry outlet I of the crystal settling tank and an inlet of a high-level settling tank, the high-level settling tank is provided with a clear liquid outlet II and a crystal slurry outlet II, the clear liquid outlet II is connected with an inlet corresponding to the evaporative crystallizer, the crystal slurry outlet II is connected with an inlet of a centrifugal machine, the centrifugal machine is provided with a clear liquid outlet III and a crystal outlet, the clear liquid outlet III is connected with an inlet corresponding to the evaporative crystallizer, and the crystal outlet is connected with an inlet of a product tank.
preferably, the bottom of the evaporative crystallizer is provided with a tubular heat exchanger, the side surface of the tubular heat exchanger is provided with a liquid level meter, a first clear liquid reflux port and a second clear liquid reflux port, the inlet of the tubular heat exchanger is an evaporative crystallizer inlet and is positioned outside the evaporative crystallizer, the outlet of the tubular heat exchanger is positioned inside the evaporative crystallizer, and a liquid baffle plate is arranged inside the evaporative crystallizer.
Preferably, the high-efficiency salt-containing wastewater concentration and crystallization device comprises a circulating pipe inlet, a crystallizer main body and a shell and tube heat exchanger outlet, wherein a circulating pipe is installed at the bottom of the evaporation crystallizer, a clear liquid inlet is formed in the upper surface of the circulating pipe and used for backflow of clear liquid on the upper layer of the crystal settling tank, a bypass outlet is formed in the bottom of the shell and tube heat exchanger and used for returning feed liquid to the feed buffer tank, and the clear liquid backflow port I and the clear liquid backflow port II are respectively used for recovering clear liquid separated from the high-level settling tank and the centrifuge.
the utility model discloses a technological effect and advantage: 1. the efficient concentration and crystallization device for the salt-containing wastewater can further treat the high-concentration high-salt-containing wastewater treated by the traditional water treatment means, and realizes the complete separation of impurity salt and wastewater through methods such as evaporation, concentration, crystallization, separation and the like, thereby realizing the zero emission of the high-salt-containing wastewater; 2. clear liquid in crystal slurry is recovered through secondary sedimentation and centrifugation, the concentration of feed liquid in the evaporative crystallizer is adjusted, the feed liquid circulation amount is adjusted through a bypass between a forced circulation pump and an incoming material buffer tank, the production load of the evaporative crystallizer can be flexibly adjusted, and the operability is improved.
drawings
Fig. 1 is a schematic view of the working process of the present invention;
Fig. 2 is a schematic structural diagram of the evaporative crystallizer of the present invention.
In the figure: 1. an incoming material buffer tank; 2. a forced circulation pump; 3. an evaporative crystallizer; 3-1, a tubular heat exchanger; 3-2, a crystallizer main body; 3-3, a liquid baffle plate; 3-4, a liquid level meter; 4. a secondary steam condenser; 5. a condensate recovery tank; 6. a crystal settling tank; 7. a crystal slurry delivery pump; 8. a high-level settling tank; 9. a centrifuge; 10. a product tank; 11. a circulating pipe line inlet; 12. an outlet of the tubular heat exchanger; 13. a gas phase outlet; 14. a circulating liquid outlet; 15. a crystal slurry outlet; 16. a bypass outlet; 17. a clear liquid inlet; 18. a clear liquid reflux port I; 19. and a clear liquid reflux port II.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
The embodiment provides a device for efficiently concentrating and crystallizing salt-containing wastewater as shown in fig. 1 and fig. 2, which comprises an incoming material buffer tank 1, an evaporative crystallizer 3, a secondary steam condenser 4 and a condensate recovery tank 5 in sequence,
The system comprises an incoming material buffer tank 1, an evaporative crystallizer 3, a forced circulation pump 2, a salt-containing wastewater feed inlet, a salt-containing wastewater return port and an incoming material buffer tank outlet, wherein the forced circulation pump 2 is installed between the incoming material buffer tank 1 and the evaporative crystallizer 3, the evaporative crystallizer 3 is provided with a crystal slurry outlet 15, a circulation liquid outlet 14, a gas phase outlet 13 and an evaporative crystallizer inlet, the incoming material buffer tank outlet and the circulation liquid outlet 14 are connected with an inlet of the forced circulation pump 2 through a pipeline, an outlet of the forced circulation pump 2 is connected with the evaporative crystallizer inlet and the salt-containing wastewater return port, the gas phase outlet 13 is connected with an inlet of a condensate recovery tank 5 through a secondary steam condenser 4, and a;
The device also comprises a crystal settling tank 6, a crystal slurry conveying pump 7, a high-level settling tank 8, a centrifugal machine 9 and a product tank 10 in sequence;
the evaporation crystallizer 3 is connected with the inlet of the crystal settling tank 6 through a crystal slurry outlet 15, the inlet of the forced circulation pump 2 is connected with a clear liquid outlet I of the crystal settling tank 6, the crystal slurry conveying pump 7 is respectively connected with a crystal slurry outlet I of the crystal settling tank 6 and an inlet of the high-level settling tank 8, the high-level settling tank 8 is provided with a clear liquid outlet II and a crystal slurry outlet II, the clear liquid outlet II is connected with an inlet corresponding to the evaporation crystallizer 3, the crystal slurry outlet II is connected with an inlet corresponding to the centrifuge 9, the centrifuge 9 is provided with a clear liquid outlet III and a crystal outlet, the clear liquid outlet III is connected with an inlet corresponding to the evaporation crystallizer 3, the crystal outlet is connected with an inlet of the product tank 10, the high-level settling tank 8 is provided with a riser to maintain normal-pressure operation, and crystals enter the centrifuge 9 from.
Specifically, a tubular heat exchanger 3-1 is fixed at the bottom of the evaporative crystallizer 3 through bolts, a liquid level meter, a clear liquid return port I18 and a clear liquid return port II 19 are arranged on the side face of the evaporative crystallizer 3, an inlet of the tubular heat exchanger 3-1 is an evaporative crystallizer inlet and is positioned outside the evaporative crystallizer 3, an outlet 12 of the tubular heat exchanger 3-1 is positioned inside the evaporative crystallizer 3, and a liquid baffle plate 3-3 is arranged inside the evaporative crystallizer 3.
Specifically, the high-efficiency salt-containing wastewater concentration and crystallization device comprises a circulating pipe line inlet 11, a crystallizer main body 3-2 and a tubular heat exchanger outlet 12, wherein a circulating pipe line is installed at the bottom of the evaporative crystallizer 3, a clear liquid inlet 17 is formed in the upper surface of the circulating pipe line and used for backflow of clear liquid on the upper layer of a crystal settling tank, a bypass outlet 16 is formed in the bottom of the tubular heat exchanger 3-1 and used for returning feed liquid to the incoming material buffer tank 1, and a clear liquid backflow port I18 and a clear liquid backflow port II 19 are respectively used for recovering clear liquid separated from the high-level settling tank 8 and the centrifuge 9.
The working principle is as follows: in the process of using the device for efficiently concentrating and crystallizing the salt-containing wastewater, a raw material liquid enters an evaporative crystallizer 3 from a forced circulation pump 2 through an incoming material buffer tank 1, enters a tubular heat exchanger 3-1 through an inlet of the tubular heat exchanger 3-1 for evaporation and concentration, a gas-liquid mixture after heat exchange enters an evaporative crystallizer main body 3-2, a liquid baffle plate 3-3 in the evaporative crystallizer 3 is used for preventing the material liquid from being entrained by secondary steam, the generated secondary steam leaves from a gas phase outlet 13 and is condensed and recovered by a secondary steam condenser 4, a part of a concentrated liquid containing crystals enters the forced circulation pump 2 again through a circulation port of the evaporative crystallizer 3 for circulation, a part of the concentrated liquid enters a crystal settling tank 6 through a discharge port of the evaporative crystallizer 3, an upper clear liquid in the crystal settling tank 6 enters the forced circulation pump 2 again for circulation, a lower layer of the concentrated liquid containing the crystals is conveyed to a high-level settling tank 8, supernatant in the high-order settling tank 8 returns to the evaporative crystallizer 3 through a first clear liquid reflux port 18, lower concentrated liquid enters a centrifuge 9 for dehydration, a product obtained through centrifugal dehydration in the centrifuge 9 is sent to a post-treatment working section for drying, and the removed water returns to the evaporative crystallizer 3 through a second clear liquid reflux port 19.
finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (3)
1. The utility model provides a contain high-efficient concentrated crystallization device of salt waste water which characterized in that: the system sequentially comprises an incoming material buffer tank (1), an evaporative crystallizer (3), a secondary steam condenser (4) and a condensate recovery tank (5);
The incoming material buffer tank (1) is provided with a salt-containing wastewater feed inlet, a salt-containing wastewater return port and an incoming material buffer tank outlet, the evaporative crystallizer (3) is provided with a crystal slurry outlet (15), a circulating liquid outlet (14), a gas phase outlet (13) and an evaporative crystallizer inlet, a forced circulation pump (2) is installed between the incoming material buffer tank (1) and the evaporative crystallizer (3), the incoming material buffer tank outlet and the circulating liquid outlet (14) are connected with an inlet of the forced circulation pump (2) through pipelines, an outlet of the forced circulation pump (2) is connected with the evaporative crystallizer inlet and the salt-containing wastewater return port, and the gas phase outlet (13) is connected with an inlet of the condensate recovery tank (5) through a secondary steam condenser (4);
The device also comprises a crystal settling tank (6), a crystal slurry conveying pump (7), a high-level settling tank (8), a centrifugal machine (9) and a product tank (10) in sequence;
The evaporative crystallizer (3) is connected with an inlet of a crystal settling tank (6) through a crystal slurry outlet (15), an inlet of a forced circulation pump (2) is connected with a clear liquid outlet I of the crystal settling tank (6), a crystal slurry conveying pump (7) is respectively connected with a crystal slurry outlet I of the crystal settling tank (6) and an inlet of a high-position settling tank (8), the high-position settling tank (8) is provided with a clear liquid outlet II and a crystal slurry outlet II, the clear liquid outlet II is connected with an inlet corresponding to the evaporative crystallizer (3), the crystal slurry outlet II is connected with an inlet of a centrifuge (9), the centrifuge (9) is provided with a clear liquid outlet III and a crystal outlet, the clear liquid outlet III is connected with an inlet corresponding to the evaporative crystallizer (3), and the crystal outlet is connected with an inlet of a product tank (10).
2. the device for efficiently concentrating and crystallizing salt-containing wastewater as claimed in claim 1, wherein: the device is characterized in that a tubular heat exchanger (3-1) is installed at the bottom of the evaporative crystallizer (3), a liquid level meter (3-4), a first clear liquid reflux opening (18) and a second clear liquid reflux opening (19) are arranged on the side face of the tubular heat exchanger (3-1), the inlet of the tubular heat exchanger (3-1) is an evaporative crystallizer inlet and is located outside the evaporative crystallizer (3), the outlet (12) of the tubular heat exchanger (3-1) is located inside the evaporative crystallizer (3), and a liquid baffle plate (3-3) is arranged inside the evaporative crystallizer (3).
3. The device for efficiently concentrating and crystallizing salt-containing wastewater as claimed in claim 2, wherein: contain high-efficient concentrated crystallization device of salt waste water still includes circulating pipe line entry (11), crystallizer main part (3-2) and shell and tube heat exchanger export (12), circulation pipe is installed to the bottom of evaporative crystallizer (3), circulation pipe's upper surface is opened there is clear liquid entry (17) for the backward flow of crystal settling tank supernatant, shell and tube heat exchanger (3-1) bottom is equipped with bypass export (16) for return the feed liquid to supplied materials buffer tank (1), clear liquid backward flow mouth one (18) and clear liquid backward flow mouth two (19) are used for retrieving the clear liquid of separating in high-order settling tank (8) and centrifuge (9) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920475325.3U CN209797679U (en) | 2019-04-10 | 2019-04-10 | Contain high-efficient concentrated crystallization device of salt waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920475325.3U CN209797679U (en) | 2019-04-10 | 2019-04-10 | Contain high-efficient concentrated crystallization device of salt waste water |
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| Publication Number | Publication Date |
|---|---|
| CN209797679U true CN209797679U (en) | 2019-12-17 |
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| CN201920475325.3U Withdrawn - After Issue CN209797679U (en) | 2019-04-10 | 2019-04-10 | Contain high-efficient concentrated crystallization device of salt waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109836006A (en) * | 2019-04-10 | 2019-06-04 | 中建安装集团有限公司 | A kind of brine waste efficient concentration crystallization apparatus and technique |
-
2019
- 2019-04-10 CN CN201920475325.3U patent/CN209797679U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109836006A (en) * | 2019-04-10 | 2019-06-04 | 中建安装集团有限公司 | A kind of brine waste efficient concentration crystallization apparatus and technique |
| CN109836006B (en) * | 2019-04-10 | 2024-04-16 | 中建安装集团有限公司 | Efficient concentration crystallization device and process for salt-containing wastewater |
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| AV01 | Patent right actively abandoned | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20240416 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20240416 |