CN210595648U - Chelate resin tower regeneration acid waste water recovery unit - Google Patents
Chelate resin tower regeneration acid waste water recovery unit Download PDFInfo
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- CN210595648U CN210595648U CN201921197040.4U CN201921197040U CN210595648U CN 210595648 U CN210595648 U CN 210595648U CN 201921197040 U CN201921197040 U CN 201921197040U CN 210595648 U CN210595648 U CN 210595648U
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- pipeline
- salt
- tank
- resin tower
- brine
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- 239000002351 wastewater Substances 0.000 title claims abstract description 54
- 238000011084 recovery Methods 0.000 title claims abstract description 33
- 230000008929 regeneration Effects 0.000 title claims abstract description 29
- 238000011069 regeneration method Methods 0.000 title claims abstract description 29
- 239000002253 acid Substances 0.000 title claims abstract description 23
- 239000013522 chelant Substances 0.000 title claims abstract description 23
- 229920005989 resin Polymers 0.000 title claims abstract description 23
- 239000011347 resin Substances 0.000 title claims abstract description 23
- 150000003839 salts Chemical class 0.000 claims abstract description 60
- 239000012267 brine Substances 0.000 claims abstract description 38
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 37
- 230000002378 acidificating effect Effects 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 18
- 229920001429 chelating resin Polymers 0.000 claims description 27
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 238000004064 recycling Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000003337 fertilizer Substances 0.000 abstract description 3
- 235000002639 sodium chloride Nutrition 0.000 description 48
- 238000007670 refining Methods 0.000 description 4
- 239000012266 salt solution Substances 0.000 description 4
- 101100372509 Mus musculus Vat1 gene Proteins 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Treatment Of Water By Ion Exchange (AREA)
Abstract
The utility model discloses a chelate resin tower regeneration acid waste water recovery unit, through the cooperation of first collecting vat, first salt bucket, crude salt basin and the second salt bucket of blender and chelate resin tower, make the required saturated crude salt water of brine, to Cl in the acid waste water‑Recycling is carried out, the pollution to the environment is reduced, and the Cl in the acidic wastewater is effectively reduced‑The emission of the fertilizer reduces the pollution to the environment and effectively protects the ecological environment.
Description
Technical Field
The utility model relates to a salt solution refining technology field, in particular to a chelate resin tower regeneration acid waste water recovery unit.
Background
The primary refining of the brine is mainly to remove the original salt (sea salt, picric salt or halogen)Water) to reduce SO and large suspended matter4 2-、NH4 +Etc. content of Ca2+、Mg2+The plasma metal ions must also be controlled to a desired concentration or less. The secondary refining of the brine is to adsorb Ca in the brine by a chelating resin tower on the basis of the primary refining, and further refine Ca in the brine2+、Mg2+The concentration of the plasma metal ions is reduced to the desired range.
The chelate resin of the chelate resin tower needs to be regenerated every time the chelate resin runs for a period of time so as to recover the chelate resin to remove Ca2+、Mg2+The ability to plasma metal ions.
Regeneration of chelating resins produces acidic and alkaline waste waters. In the prior art, acidic wastewater and alkaline wastewater generated by chelating resin regeneration are neutralized, the wastewater formed after neutralization is sent to comprehensive sewage treatment, but Cl in the wastewater formed after neutralization-(Cl-Mainly from waste acid) content exceeds the standard, and certain pollution is brought to the environment.
Therefore, how to effectively remove Cl in acidic wastewater generated by chelating resin regeneration-To reduce the environmental pollution, the technical problem to be solved by the technicians in this field is urgently needed.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a chelate resin tower regeneration acid waste water recovery unit to effectively retrieve the Cl in the spent acid that chelate resin regeneration produced-So as to reduce the pollution to the environment.
In order to achieve the above object, the utility model provides a following technical scheme:
a chelating resin tower regeneration acid waste water recovery device comprises:
a first collecting tank capable of collecting acidic wastewater generated by the regeneration of the chelating resin tower;
a first salt tank for preparing a heavy saturated crude brine, the first salt tank being in communication with the first collection tank by a first line, the first line being in communication with a second line capable of supplying dechlorinated light brine;
the crude salt water tank is communicated with the first salt dissolving barrel through a third pipeline;
the water inlet of the plate heat exchanger is communicated with the coarse brine tank through a fourth pipeline, and the fourth pipeline can also be communicated with a fifth pipeline for conveying the desalted water and a sixth pipeline for conveying the dechlorinated light brine;
the first liquid inlet of the mixer is communicated with the outlet of the plate heat exchanger, and the second liquid inlet of the mixer is communicated with a seventh pipeline capable of conveying NaOH solution;
and the second salt barrel is communicated with the liquid outlet of the mixer.
Preferably, in the above apparatus for recovering regenerated acidic wastewater from a chelate resin tower, a plurality of first homogenizing pumps are connected in parallel to the first pipeline.
Preferably, in the above recovery apparatus for acidic wastewater regenerated by a chelating resin tower, a filter is disposed on the first pipeline, and the filter is located between the first homogenizing pump and the first salt tank.
Preferably, in the above apparatus for recovering regenerated acidic wastewater from a chelate resin tower, a plurality of second homogenizing pumps are connected in parallel to the fourth pipeline.
Preferably, the recovery apparatus for acidic wastewater regenerated by a chelating resin tower further comprises:
an eighth line in communication with the seventh line, the eighth line capable of being in communication with a liquid outlet of the mixer.
Preferably, the recovery apparatus for acidic wastewater regenerated by a chelating resin tower further comprises:
and the ninth pipeline is connected with the eighth pipeline in parallel and is communicated with an opening at the upper end of the second salt dissolving barrel.
Preferably, the recovery apparatus for acidic wastewater regenerated by a chelating resin tower further comprises:
and the tenth pipeline is communicated with the fourth pipeline and is communicated with an outlet of the plate heat exchanger.
Preferably, in the above apparatus for recovering regenerated acidic wastewater from a chelate resin column, the seventh pipeline may be in communication with a sodium hydroxide head tank.
According to the above technical scheme, the utility model provides a chelating resin tower regeneration acid waste water recovery unit through first collecting vat, first salt bucket, crude salt basin, plate heat exchanger, blender and the cooperation of second salt bucket, makes the required saturated crude salt water of brine, to Cl in the acid waste water-Recycling is carried out, the pollution to the environment is reduced, and the Cl in the acidic wastewater is effectively reduced-The emission of the fertilizer reduces the pollution to the environment and effectively protects the ecological environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a chelating resin tower regenerated acidic wastewater recovery device provided by the embodiment of the utility model.
Wherein the content of the first and second substances,
1. the device comprises a first collecting tank, 2, a first salt dissolving tank, 3, a first pipeline, 4, a second pipeline, 5, a crude salt water tank, 6, a third pipeline, 7, a fourth pipeline, 8, a fifth pipeline, 9, a sixth pipeline, 10, a mixer, 11, a seventh pipeline, 12, a second salt dissolving tank, 13, a first homogenizing pump, 14, a second homogenizing pump, 15, an eighth pipeline, 16, a ninth pipeline, 17 and a tenth pipeline.
Detailed Description
The utility model discloses a chelate resin tower regeneration acid waste water recovery unit to effectively retrieve Cl in the spent acid that chelate resin regeneration produced-So as to reduce the pollution to the environment.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses a chelate resin tower regeneration acid waste water recovery unit, including first collecting vat 1, first salt bucket 2, coarse salt basin 5, plate heat exchanger, blender 10 and second salt bucket.
The first collecting tank 1 can collect acidic wastewater generated by the regeneration of the chelating resin tower;
the first salt tank 2 is used for preparing heavy saturated crude salt water;
the crude salt water tank 5 is used for storing the heavy saturated crude salt water prepared by the first salt dissolving barrel 2;
the plate heat exchanger is used for heating the mixed ammonia-removing brine, dechlorinated light brine and heavy saturated coarse brine;
the mixer 10 is used for mixing the mixed liquid (the ammonia-removing brine, the dechlorinated light brine and the heavy saturated crude brine) heated by the plate heat exchanger with a NaOH solution, and adjusting the PH value of the mixed liquid;
saturated crude salt water required by primary salt water is prepared in the second salt tank.
Specifically, first collecting vat 1 and first salt tank 2 communicate through first pipeline 3, and first salt tank 2 and thick salt basin 5 communicate through third pipeline 6, and thick salt basin 5 communicates through fourth pipeline 7 with plate heat exchanger's import, and plate heat exchanger's export communicates with the first inlet of blender 10, and the liquid outlet of blender 10 communicates with second salt tank 12.
The working process of the chelate resin tower regenerated acid wastewater recovery device is as follows:
the dechlorinated light brine of the second pipeline 4 is mixed with the acidic wastewater entering the first pipeline 3 from the first collecting tank 1 to form a first mixed liquid;
the first mixed liquid is sent into a first salt dissolving barrel 2 through a first pipeline 3 and is fully contacted with dry salt added in advance in the first salt dissolving barrel 2 to prepare heavy saturated crude salt water;
the heavy saturated crude brine is sent into a crude brine tank 5 through a third pipeline 6, and the heavy saturated crude brine in the crude brine tank 5 enters a fourth pipeline 7;
the heavy saturated crude brine in the fourth pipeline 7 is mixed with the ammonia-removed brine conveyed by the fifth pipeline 8 and the dechlorinated light brine conveyed by the sixth pipeline 9 to form a second mixed liquid, and the second mixed liquid is fed into the plate heat exchanger through the fourth pipeline 7 to be heated;
the heated second mixed liquid and NaOH solution supplied by a seventh pipeline 11 are respectively supplied to the mixer 10 through a first liquid inlet and a second liquid inlet of the mixer 10 to be mixed, and the PH is adjusted to form a third mixed liquid, wherein the PH of the third mixed liquid is alkaline;
the third mixed liquid is supplied into the second salt dissolving tank 12 through the liquid outlet of the mixer 10 to prepare saturated crude salt water required by the primary salt water, so that the recycling of the regenerated wastewater of the chelate resin tower is realized, and the recycling is mainly to Cl in the acidic wastewater-Can be recycled, and effectively reduces Cl in the acidic wastewater-The emission of the fertilizer reduces the pollution to the environment and effectively protects the ecological environment.
As shown in FIG. 1, the fourth pipeline 7 is connected to the sixth pipeline 9 for transporting dechlorinated light brine and then to the fifth pipeline 8 for transporting de-ammoniated brine, i.e. the heavy saturated raw brine is mixed with dechlorinated light brine and then mixed with de-ammoniated brine. Specifically, the dechlorinated light salt brine comes from a light salt brine concentration device, and the ammonia-removed brine comes from a pipe gallery.
Specifically, the temperature of the second mixed liquid after being heated by the plate heat exchanger is 55-60 ℃, and the PH of the third mixed liquid is 9-10.
The acid waste water recovery unit of chelate resin tower regeneration that this scheme provided, through first collecting vat 1, first salt solution bucket 2, crude salt basin 5, plate heat exchanger, blender 10 and the cooperation of second salt solution bucket 12, make the required saturated crude salt solution of brine, to Cl among the acid waste water-Recycling is carried out, the pollution to the environment is reduced, and the Cl in the acidic wastewater is effectively reduced-The emission of the catalyst reduces the pollution to the environment and effectively protects the environmentProtects the ecological environment.
In order to further optimize the technical scheme, the chelating resin tower regeneration acidic wastewater recovery device provided by the scheme is provided with the first homogenizing pump 13 on the first pipeline 3, the first homogenizing pump 13 provides power for conveying acidic wastewater in the first pipeline 3, the recovery efficiency of the acidic wastewater is accelerated to a certain extent, and the recovery time of the acidic wastewater is shortened.
In a specific embodiment of the solution, a plurality of first homogenizing pumps 13 are arranged in parallel on the first pipeline 3.
As shown in fig. 1, two first homogenizing pumps 13 are arranged in parallel on the first pipeline 3.
In order to further optimize the technical scheme, the chelating resin tower regeneration acidic wastewater recovery device provided by the scheme is provided with a filter on the first pipeline 3, and the filter is positioned between the first homogenizing pump 13 and the first salt tank 2. The filter can effectively filter solid particle impurities in the chelating resin tower regenerated acid wastewater, improves the conveying performance of saturated crude salt water required by primary salt water, and facilitates the next procedure.
In order to further optimize the technical scheme, the chelating resin tower regeneration acidic wastewater recovery device provided by the scheme is provided with the second homogenizing pump 14 on the fourth pipeline 7, and the second homogenizing pump 14 provides power for conveying the heavy saturated coarse salt water of the fourth pipeline 7, so that the recovery efficiency of the acidic wastewater is further accelerated, and the recovery time of the acidic wastewater is shortened.
In a particular embodiment of the solution, a plurality of second homogenizing pumps 14 are arranged in parallel on the fourth line 7.
As shown in fig. 1, two homogenizing pumps are connected in parallel to the fourth pipeline 7.
In a specific embodiment of this scheme, chelating resin tower regeneration acid waste water recovery unit still includes:
an eighth line 15 communicating with the seventh line 11, the eighth line 15 being able to communicate with the outlet of the mixer 10.
As shown in FIG. 1, an alkali liquor metering pump is arranged at the joint of the eighth pipeline 15 and the seventh pipeline 11, and a valve is arranged at the joint of the eighth pipeline 15 and the liquor outlet of the mixer 10.
In one embodiment of this scheme, chelating resin tower regeneration acid waste water recovery unit still includes:
and a ninth pipeline 16 connected with the eighth pipeline 15 in parallel, wherein one end of the ninth pipeline 16 is communicated with the pipe body of the eighth pipeline 15, and the other end of the ninth pipeline 16 is communicated with the upper end opening of the second salt dissolving tank 12.
In one embodiment of this scheme, chelating resin tower regeneration acid waste water recovery unit still includes:
and a tenth pipeline 17 communicated with the fourth pipeline 7, wherein the tenth pipeline 17 is communicated with the outlet of the plate heat exchanger, and the connection position of the tenth pipeline 17 and the fourth pipeline 7 is positioned at the downstream of the second homogenizing pump 14 and in front of the connection position of the fourth pipeline 7 and the fifth pipeline 8.
Preferably, the seventh pipeline 11 can be communicated with a sodium hydroxide head tank to provide a NaOH solution for the chelating resin tower regeneration acidic wastewater recovery device.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a chelate resin tower regeneration acid waste water recovery unit which characterized in that includes:
a first collection tank (1) capable of collecting the acidic waste water resulting from the regeneration of the chelating resin column;
a first salt tank (2) for preparing a heavy saturated crude brine, said first salt tank (2) being in communication with said first collection tank (1) through a first line (3), said first line (3) being in communication with a second line (4) able to supply dechlorinated light brine;
the crude salt water tank (5), the crude salt water tank (5) is communicated with the first salt tank (2) through a third pipeline (6);
the water inlet of the plate heat exchanger is communicated with the crude brine tank (5) through a fourth pipeline (7), and the fourth pipeline (7) can also be communicated with a fifth pipeline (8) for conveying the demineralized brine and a sixth pipeline (9) for conveying the dechlorinated dilute brine;
the first liquid inlet of the mixer (10) is communicated with the outlet of the plate heat exchanger, and the second liquid inlet of the mixer (10) is communicated with a seventh pipeline (11) capable of conveying NaOH solution;
and the second salt dissolving tank (12), wherein the second salt dissolving tank (12) is communicated with the liquid outlet of the mixer (10).
2. The chelating resin tower regeneration acidic wastewater recovery device as recited in claim 1, wherein a plurality of first homogenizing pumps (13) are arranged in parallel on the first pipeline (3).
3. The chelating resin tower regeneration acidic wastewater recovery device as recited in claim 2, wherein a filter is disposed on the first pipeline (3), and the filter is located between the first homogenizing pump (13) and the first salt tank (2).
4. The chelating resin tower regeneration acidic wastewater recovery device as recited in claim 1, wherein a plurality of second homogenizing pumps (14) are connected in parallel to the fourth pipeline (7).
5. The apparatus for recovering acidic wastewater from a chelate resin tower according to claim 1, further comprising:
an eighth line (15) in communication with the seventh line (11), the eighth line (15) being capable of communicating with the liquid outlet of the mixer (10).
6. The recovery device of acid wastewater regenerated by chelating resin tower as claimed in claim 5,
further comprising:
and a ninth pipeline (16) connected with the eighth pipeline (15) in parallel, wherein the ninth pipeline (16) is communicated with an upper end opening of the second salt dissolving tank (12).
7. The apparatus for recovering acidic wastewater from a chelate resin tower according to claim 1, further comprising:
a tenth pipe (17) communicating with the fourth pipe (7), the tenth pipe (17) communicating with the outlet of the plate heat exchanger.
8. The chelating resin tower regeneration acidic wastewater recovery device as recited in claim 1, wherein the seventh pipeline (11) can communicate with a sodium hydroxide head tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921197040.4U CN210595648U (en) | 2019-07-26 | 2019-07-26 | Chelate resin tower regeneration acid waste water recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921197040.4U CN210595648U (en) | 2019-07-26 | 2019-07-26 | Chelate resin tower regeneration acid waste water recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210595648U true CN210595648U (en) | 2020-05-22 |
Family
ID=70713669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921197040.4U Active CN210595648U (en) | 2019-07-26 | 2019-07-26 | Chelate resin tower regeneration acid waste water recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210595648U (en) |
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2019
- 2019-07-26 CN CN201921197040.4U patent/CN210595648U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240611 Address after: 614899 Yongxiang Road, Zhu Gen Town, Wu Tong Qiao District, Leshan, Sichuan, 96 Patentee after: Sichuan Yongxiang Resin Co.,Ltd. Country or region after: China Address before: 614899 Yongxiang Road, Zhu Gen Town, Wu Tong Qiao District, Leshan, Sichuan, 96 Patentee before: SICHUAN YONGXIANG Co.,Ltd. Country or region before: China |