CN215479844U - Device that sodium fluoride waste water evaporation crystallization blockked up - Google Patents
Device that sodium fluoride waste water evaporation crystallization blockked up Download PDFInfo
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- CN215479844U CN215479844U CN202121746094.9U CN202121746094U CN215479844U CN 215479844 U CN215479844 U CN 215479844U CN 202121746094 U CN202121746094 U CN 202121746094U CN 215479844 U CN215479844 U CN 215479844U
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- surface condenser
- water
- heating chamber
- sodium fluoride
- steam
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- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 title claims abstract description 44
- 239000002351 wastewater Substances 0.000 title claims abstract description 31
- 239000011775 sodium fluoride Substances 0.000 title claims abstract description 22
- 235000013024 sodium fluoride Nutrition 0.000 title claims abstract description 22
- 238000002425 crystallisation Methods 0.000 title claims abstract description 18
- 230000008025 crystallization Effects 0.000 title claims abstract description 18
- 238000001704 evaporation Methods 0.000 title claims abstract description 17
- 230000008020 evaporation Effects 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 239000000498 cooling water Substances 0.000 claims abstract description 24
- 238000009833 condensation Methods 0.000 claims abstract description 5
- 230000005494 condensation Effects 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 5
- 208000028659 discharge Diseases 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a device for preventing sodium fluoride waste water from being blocked by evaporative crystallization, which relates to the technical field of evaporative crystallization. According to the utility model, the blockage phenomenon of sodium fluoride waste water during evaporation crystallization can be effectively relieved through reasonable structural design, the heating chamber and the separation chamber are matched with a forced circulation pump for use, the material circulation speed is improved, the concentration time is shortened, the evaporation crystallization efficiency is improved, in addition, secondary steam generated by the separation chamber can enter the surface condenser for condensation, the condensate water tank can collect condensate water from the surface condenser, in addition, the surface condenser and the circulating cooling water upper water unit are matched for use, the heat exchange operation can be effectively carried out on the steam entering the surface condenser, and the secondary steam is rapidly condensed.
Description
Technical Field
The utility model relates to the technical field of evaporative crystallization, in particular to a device for preventing sodium fluoride wastewater from being blocked by evaporative crystallization.
Background
The sodium fluoride wastewater comes from the fluorine chemical industry, and the zero discharge treatment of the wastewater is required because the sodium fluoride-containing wastewater has great pollution to water. The sodium fluoride wastewater is generally from fluorine-containing wastewater generated in the cleaning of electronic products, the solubility of sodium fluoride is low, and the treatment of the fluorine-containing wastewater is generally as follows: chemical precipitation, flocculation precipitation, and adsorption.
At present, the evaporation method is generally adopted in the sodium fluoride wastewater treatment process, but when the evaporation method is adopted to treat the sodium fluoride wastewater, because the solubility of sodium fluoride is very low and the metastable zone is very narrow, a large amount of crystals can be precipitated after supersaturation is reached, and if an evaporator is unreasonably designed, the wall of a heat exchange tube is very easily formed, and the blockage of a multi-effect evaporation material passing tube is caused.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a device for preventing sodium fluoride wastewater from being blocked by evaporation crystallization, which is reasonable in design, can effectively relieve the scaling phenomenon and avoids the blocking condition.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the utility model provides a device that sodium fluoride waste water evaporation crystallization blockked up, includes waste water storage unit and heating chamber, be provided with the delivery pump between waste water storage unit and the heating chamber, the heating chamber is connected with the separating chamber, just be connected with the force circulation pump between heating chamber and the separating chamber, the separating chamber is connected with the surface condenser, the separating chamber still is connected with the ejection of compact pump, the ejection of compact pump is connected with the pressure filter, the surface condenser is connected with the condensation water pitcher.
Preferably, be connected with steam generation unit and steam condensate water collection unit on the heating chamber respectively, steam generation unit is used for to the interior input steam of heating chamber to feed liquid in the heating chamber heats, steam condensate water collection unit is used for retrieving the condensate water of condensing in the heating chamber.
Preferably, the surface condenser is respectively connected with a circulating cooling water upper water unit and a circulating cooling water return unit, the circulating cooling water upper water unit is used for inputting cooling water into the surface condenser, and the circulating cooling water return unit is used for recovering cooling water subjected to heat exchange in the surface condenser.
Preferably, the condensed water tank is connected to a shell side condensed water outlet of the surface condenser and is used for recovering condensed water of secondary steam of the surface condenser.
The utility model has the beneficial technical effects that: according to the utility model, the blockage phenomenon of sodium fluoride waste water during evaporation crystallization can be effectively relieved through reasonable structural design, the heating chamber and the separation chamber are matched with a forced circulation pump for use, the material circulation speed is improved, the concentration time is shortened, the evaporation crystallization efficiency is improved, in addition, secondary steam generated by the separation chamber can enter the surface condenser for condensation, the condensate water tank can collect condensate water from the surface condenser, in addition, the surface condenser and the circulating cooling water upper water unit are matched for use, the heat exchange operation can be effectively carried out on the steam entering the surface condenser, and the secondary steam is rapidly condensed.
Drawings
FIG. 1 is a schematic view of a wastewater evaporation plant according to an embodiment of the present invention;
in the figure: the method comprises the following steps of 1-a delivery pump, 2-a heating chamber, 3-a separation chamber, 4-a forced circulation pump, 5-a discharge pump, 6-a filter press, 7-a surface condenser, 8-a condensed water tank, 9-a waste water storage unit, 10-a steam generation unit, 11-a steam condensed water collection unit, 12-a circulating cooling water upper water unit and 13-a circulating cooling water return unit.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1, the device for preventing blockage by evaporative crystallization of sodium fluoride wastewater provided by this embodiment includes a wastewater storage unit 9 and a heating chamber 2, the wastewater storage unit 9 is a sodium fluoride wastewater storage unit, wastewater enters the heating chamber 2 through a delivery pump 1, gas-liquid separation is performed in the separation chamber 3 after heating, the delivery pump 1 is disposed between the wastewater storage unit 9 and the heating chamber 2, the heating chamber 2 is connected with the separation chamber 3, a forced circulation pump 4 is connected between the heating chamber 2 and the separation chamber 3, the flow between the heating chamber 2 and the separation chamber 3 circulates through the forced circulation pump 4, as evaporation continues, the solution is saturated, sodium fluoride and sodium chloride crystals begin to separate out, when the solid content reaches 20% -30%, the crystal slurry is delivered to a filter press 6 through a discharge pump 5, the separation chamber 3 is connected with a surface condenser 7, the separation chamber 3 is further connected with a discharge pump 5, the discharging pump 5 is connected with a filter press 6, and the surface condenser 7 is connected with a condensed water tank 8.
In the present embodiment, as shown in fig. 1, a steam generation unit 10 and a steam condensate collection unit 11 are respectively connected to the heating chamber 2, the steam generation unit 10 is used for inputting steam into the heating chamber 2 to heat the feed liquid in the heating chamber 2, the steam condensate collection unit 11 is used for recovering steam condensate in the heating chamber 2, the steam generated by the steam generation unit 10 enters the material in the shell-side heating tube side of the heating chamber 2, after heat exchange through the partition walls, the steam is condensed, and the condensate is collected by the steam condensate collection unit 11.
In this embodiment, as shown in fig. 1, a circulating cooling water upper water unit 12 and a circulating cooling water return unit 13 are respectively connected to the surface condenser 7, the circulating cooling water upper water unit 12 is used for inputting cooling water into the surface condenser 7, the circulating cooling water return unit 13 is used for recovering cooling water subjected to heat exchange in the surface condenser 7, secondary steam generated in the separation chamber 3 enters the surface condenser 7, is condensed after heat exchange with the circulating cooling water, and condensed water enters the condensed water tank 8 for recovery.
In the present embodiment, as shown in fig. 1, a condensate tank 8 is connected to the shell-side condensate outlet of the surface condenser 7 for recovering condensate of the secondary steam of the surface condenser 7.
In summary, in the present embodiment, the heating chamber 2 and the separation chamber 3 provided in the present embodiment are used in cooperation with the forced circulation pump 4, so as to increase the material circulation speed, shorten the concentration time, and increase the efficiency of evaporative crystallization, in addition, the secondary steam generated by the separation chamber 3 can enter the surface condenser 7 for condensation, the condensed water tank 8 can collect the secondary steam condensed water from the surface condenser 7, in addition, the surface condenser 7 and the circulating cooling water upper water unit 12 are used in cooperation, so as to effectively perform the heat exchange operation on the secondary steam entering the surface condenser 7, and thus the secondary steam is rapidly condensed.
The above description is only for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the scope of the present invention.
Claims (4)
1. The utility model provides a device that sodium fluoride waste water evaporation crystallization anti-clogging which characterized in that: including waste water storage unit (9) and heating chamber (2), be provided with delivery pump (1) between waste water storage unit (9) and heating chamber (2), heating chamber (2) are connected with separating chamber (3), just be connected with forced circulation pump (4) between heating chamber (2) and separating chamber (3), separating chamber (3) are connected with surface condenser (7), separating chamber (3) still are connected with discharge pump (5), discharge pump (5) are connected with pressure filter (6), surface condenser (7) are connected with condensation water pitcher (8).
2. The sodium fluoride waste water evaporation crystallization anti-clogging device according to claim 1, characterized in that: the steam heating device is characterized in that the heating chamber (2) is connected with a steam generation unit (10) and a steam condensate water collection unit (11) respectively, the steam generation unit (10) is used for inputting steam into the heating chamber (2) to heat feed liquid in the heating chamber (2), and the steam condensate water collection unit (11) is used for recovering condensed condensate water in the heating chamber (2).
3. The sodium fluoride waste water evaporation crystallization anti-clogging device according to claim 1, characterized in that: the surface condenser (7) is connected with a circulating cooling water upper water unit (12) and a circulating cooling water return unit (13) respectively, the circulating cooling water upper water unit (12) is used for inputting cooling water into the surface condenser (7), and the circulating cooling water return unit (13) is used for recovering the cooling water in the surface condenser (7) after heat exchange.
4. The sodium fluoride waste water evaporation crystallization anti-clogging device according to claim 1, characterized in that: and the condensed water tank (8) is connected to a shell side condensed water outlet of the surface condenser (7) and is used for recovering condensed water of secondary steam of the surface condenser (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121746094.9U CN215479844U (en) | 2021-07-29 | 2021-07-29 | Device that sodium fluoride waste water evaporation crystallization blockked up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121746094.9U CN215479844U (en) | 2021-07-29 | 2021-07-29 | Device that sodium fluoride waste water evaporation crystallization blockked up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215479844U true CN215479844U (en) | 2022-01-11 |
Family
ID=79753160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121746094.9U Active CN215479844U (en) | 2021-07-29 | 2021-07-29 | Device that sodium fluoride waste water evaporation crystallization blockked up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215479844U (en) |
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2021
- 2021-07-29 CN CN202121746094.9U patent/CN215479844U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231218 Address after: No. 67 Hengyuan Road, Dantu District, Zhenjiang City, Jiangsu Province, 212000 Patentee after: Jiangsu Haichuan Petrochemical Engineering Technology Co.,Ltd. Address before: 212000 No. 67, Hengyuan Road, Dantu new town, Zhenjiang City, Jiangsu Province Patentee before: JIANGSU KUNZHONG MACHINERY Co.,Ltd. |
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| TR01 | Transfer of patent right |