CN113144663A - Enrichment liquid treatment system and treatment method - Google Patents
Enrichment liquid treatment system and treatment method Download PDFInfo
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- CN113144663A CN113144663A CN202110530291.5A CN202110530291A CN113144663A CN 113144663 A CN113144663 A CN 113144663A CN 202110530291 A CN202110530291 A CN 202110530291A CN 113144663 A CN113144663 A CN 113144663A
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- 239000007788 liquid Substances 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000012452 mother liquor Substances 0.000 claims abstract description 107
- 238000002425 crystallisation Methods 0.000 claims abstract description 52
- 230000008025 crystallization Effects 0.000 claims abstract description 52
- 150000003839 salts Chemical class 0.000 claims abstract description 24
- 230000008020 evaporation Effects 0.000 claims abstract description 16
- 238000001704 evaporation Methods 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000005406 washing Methods 0.000 claims description 11
- 239000012153 distilled water Substances 0.000 claims description 9
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 15
- 238000012806 monitoring device Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011066 ex-situ storage Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010413 mother solution Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0063—Control or regulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/10—Centrifuges combined with other apparatus, e.g. electrostatic separators; Sets or systems of several centrifuges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D2009/0086—Processes or apparatus therefor
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention provides a treatment system and a treatment method of enrichment liquid. The enrichment liquid treatment system comprises: the device comprises an evaporative crystallization device, a centrifugal machine, a conveyor, a mother liquor tank and a mother liquor pump. The evaporative crystallization device is connected with the centrifugal machine, the centrifugal machine is arranged above the conveyor to convey finished salt onto the conveyor, the centrifugal machine is connected with the mother liquor tank to convey mother liquor into the mother liquor tank, the mother liquor tank is connected with an inlet of the mother liquor pump through an inlet pipeline, and an outlet of the mother liquor pump is connected with the evaporative crystallization device through an outlet pipeline. Compared with the prior art, the enrichment liquid treatment system does not need to install the single-effect evaporation device of the enrichment liquid at the tail end of the evaporation crystallization device. Therefore, the cost of the treatment equipment and the operation cost of the enrichment liquid are greatly reduced. In the enrichment liquid treatment system, the residual product treated by the evaporative crystallization device can be continuously subjected to the next cycle treatment operation, and the effect of zero discharge of the enrichment liquid treatment can be effectively realized.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a concentrated solution treatment system and a treatment method.
Background
At present, when the enrichment liquid is treated, a single-effect evaporation device of the enrichment liquid is usually arranged at the tail end of an evaporation crystallization device. The equipment used in the enrichment liquid treatment mode has higher cost. Meanwhile, the enriched liquid treated in the above manner still generates a part of enriched mother liquid, and usually requires ex-situ treatment, thereby causing an increase in the treatment cost of the enriched liquid.
Disclosure of Invention
The invention provides a concentrated solution treatment system and a treatment method, which are used for solving the problems that the treatment equipment cost of the concentrated solution is high and partial concentrated mother solution can be generated after treatment in the prior art, and the effects of reducing the treatment equipment cost of the concentrated solution and realizing zero emission of the concentrated solution treatment are achieved.
According to a first aspect of the present invention, there is provided an enrichment liquor treatment system comprising: the device comprises an evaporative crystallization device, a centrifugal machine, a conveyor, a mother liquor tank and a mother liquor pump.
Wherein, the evaporative crystallization device is connected with the centrifuge. The centrifuge is positioned above the conveyor to convey the finished salt onto the conveyor. The centrifuge is connected with the mother liquor tank to convey mother liquor into the mother liquor tank. The mother liquid tank is connected with the inlet of the mother liquid pump through an inlet pipeline. And the outlet of the mother liquid pump is connected with the evaporative crystallization device through an outlet pipeline.
According to the enrichment liquid treatment system provided by the invention, the outlet pipeline is provided with a first branch pipeline. The first branch pipeline is connected with the outlet pipeline and the mother liquor tank. And, a flow control valve is installed on the first branch pipe.
According to the enrichment liquid treatment system provided by the invention, the outlet pipeline is provided with a second branch pipeline. The first end of the second branch line is connected with the outlet line. The second end port of the second branch pipe is arranged above the conveyor.
According to the enrichment liquid treatment system provided by the invention, the second end port of the second branch pipeline is provided with the spray head.
According to the enrichment liquid treatment system provided by the invention, a liquid level meter is arranged in the mother liquid tank. The liquid level meter is electrically connected with the mother liquid pump.
According to the enrichment liquid treatment system provided by the invention, a liquid level meter cleaning device is arranged on the liquid level meter.
According to the enrichment liquid treatment system provided by the invention, a liquid receiving groove for receiving flushing liquid is arranged below the conveyor.
According to the enrichment liquid treatment system provided by the invention, the liquid receiving tank is connected with the mother liquid tank.
According to the enrichment liquid treatment system provided by the invention, the inlet pipeline is provided with a pipeline cleaning device. And, pipeline belt cleaning device includes that steam washes pipeline and distilled water and washes the pipeline.
According to a second aspect of the present invention, there is provided an enrichment liquid treatment method based on the above enrichment liquid treatment system, comprising:
draining the aqueous solid salt treated by the evaporative crystallization device into the centrifuge;
the centrifuge separates the solid salt containing water into finished salt and mother liquor, the finished salt is conveyed to the outside of the enrichment solution treatment system through the conveyor, and the mother liquor is drained into the mother liquor tank;
the mother liquor in the mother liquor tank is pumped into the evaporative crystallization device by the mother liquor pump to be subjected to evaporative concentration crystallization treatment;
and the steps are circularly repeated in sequence.
In the enrichment liquid treatment system provided by the invention, the evaporative crystallization device is connected with the centrifuge. The centrifuge is positioned above the conveyor to convey the finished salt onto the conveyor. The centrifuge is connected with the mother liquor tank to convey mother liquor into the mother liquor tank. The mother liquid tank is connected with the inlet of the mother liquid pump through an inlet pipeline. And the outlet of the mother liquid pump is connected with the evaporative crystallization device through an outlet pipeline.
Compared with the prior art, the enrichment liquid treatment system does not need to install the single-effect evaporation device of the enrichment liquid at the tail end of the evaporation crystallization device. Therefore, the cost of the treatment equipment and the operation cost of the enrichment liquid are greatly reduced. Meanwhile, in the enrichment liquid treatment system, the residual product treated by the evaporative crystallization device can be continuously subjected to the next cycle treatment operation, and the effect of zero emission of the enrichment liquid treatment can be effectively realized.
Further, in the enrichment liquid treatment method provided by the invention, the residual product after treatment by the evaporative crystallization device can be continuously subjected to the next cycle treatment operation. Therefore, the effect of zero discharge of the enrichment liquid can be effectively realized.
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 introduced below, and it is obvious that the drawings in the following description are 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 diagram of the system architecture of an enrichment liquor treatment system provided by the present invention;
reference numerals:
100: an evaporative crystallization device; 200: a centrifuge; 300: a conveyor;
400: a mother liquor tank; 401: a liquid level meter; 500: a mother liquor pump;
501: an inlet line; 502: an outlet line; 503: a first branch line;
504: a flow control valve; 505: a second branch line; 506: a spray head;
600: a liquid receiving tank; 701: flushing the pipeline with steam; 702: washing the pipeline with distilled water;
800: a pressure monitoring device.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification to make the purpose, technical solution, and advantages of the embodiments of the present invention more clear, and the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are a part of embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The enriched liquid treatment system and the treatment method provided by the embodiment of the invention are described with reference to fig. 1. It should be understood that the following description is only exemplary embodiments of the present invention and does not constitute any particular limitation of the present invention.
An embodiment of the first aspect of the present invention provides an enriched liquid treatment system, as shown in fig. 1, comprising: the evaporative crystallization device 100, the centrifuge 200, the conveyor 300, the mother liquor tank 400 and the mother liquor pump 500.
Wherein, the evaporative crystallization device 100 is connected with a centrifuge 200. The centrifuge 200 is placed above the conveyor 300 to convey the finished salt onto the conveyor 300. The centrifuge 200 is connected to the mother liquor tank 400 to transfer the mother liquor into the mother liquor tank 400. The mother liquor tank 400 is connected to the inlet of the mother liquor pump 500 via an inlet line 501. The outlet of the mother liquor pump 500 is connected to the evaporative crystallization device 100 via an outlet line 502.
In the concentrated solution treatment system, the concentrated solution is firstly subjected to evaporation crystallization treatment by the evaporation crystallization device 100, and then is conveyed into the centrifuge 200, and is separated into finished salt and mother liquor by the action of the centrifuge 200.
Wherein the product salt is transported onto the conveyor 300 and carried by the conveyor 300 to the exterior of the pregnant solution treatment system for collection. The mother liquor is transported to the inside of the mother liquor tank 400. The mother liquor pump 500 pumps the mother liquor in the mother liquor tank 400 into the evaporative crystallization apparatus 100 to continue the evaporative crystallization process. Thereby continuously cycling back and forth.
Compared with the prior art, the enrichment liquid treatment system does not need to install the single-effect evaporation device of the enrichment liquid at the tail end of the evaporation crystallization device. Therefore, the cost of the treatment equipment and the operation cost of the enrichment liquid are greatly reduced. Meanwhile, in the enrichment liquid treatment system, the residual product treated by the evaporative crystallization device 100 can continue to be subjected to the next cycle treatment operation, and the effect of zero discharge of the enrichment liquid treatment can be effectively realized.
For example, in one embodiment of the present invention, the conveyor 300 comprises a belt conveyor. The finished salt falls onto the belt conveyor and is conveyed out of the enrichment liquid treatment system.
The above embodiment is only an illustrative embodiment of the present invention, and does not limit the present invention in any way. That is, the above-described conveyor 300 includes, but is not limited to, a belt conveyor.
In one embodiment of the present invention, a first branch line 503 is provided on the outlet line 502. A first branch line 503 is connected to the outlet line 502 and the mother liquor tank 400. A flow control valve 504 is attached to the first branch line 503.
Specifically, as shown in fig. 1, the outlet of the mother liquor pump 500 is connected to the evaporative crystallization device 100 through an outlet line 502. A first branch line 503 is connected to the outlet line 502. The first branch line 503 is also in communication with the mother liquor tank 400. A flow control valve 504 is mounted on the first branch line 503.
When the flow control valve 504 is adjusted to be in the completely closed state, all the mother liquor flowing out through the mother liquor pump 500 is delivered to the evaporative crystallization apparatus 100 for the evaporative crystallization treatment, and no mother liquor flows back to the mother liquor tank 400 through the first branch line 503. When the flow control valve 504 is adjusted to the open state, a part of the mother liquor flowing out from the mother liquor pump 500 is delivered to the evaporation crystallization device 100 for evaporation crystallization treatment, and another part of the mother liquor flows back to the mother liquor tank 400 through the first branch pipe 503.
According to the above-described embodiment, by adjusting the operation state of the flow control valve 504, the amount of the mother liquid returned to the mother liquid tank 400 through the first branch line 503 can be controlled, and the amount of the mother liquid transferred to the inside of the evaporative crystallization apparatus 100 can be controlled.
It should be noted here that the flow control valve 504 is not limited to two states, fully open and fully closed. The flow control valve 504 can perform adjustment operations of different opening sizes to adjust the amount of the mother liquor returned to the mother liquor tank 400 through the first branch line 503, thereby adjusting the amount of the mother liquor transferred to the evaporative crystallization apparatus 100.
In one embodiment of the invention, a second branch line 505 is provided on the outlet line 502. A first end of the second branch line 505 is connected to the outlet line 502. The second end port of the second branch pipe 505 is placed above the conveyor 300.
Further, in one embodiment of the present invention, a nozzle 506 is installed on a second end port of the second branch pipe 505.
For example, as shown in FIG. 1, the outlet of the mother liquor pump 500 is connected to the evaporative crystallization device 100 through an outlet line 502. A second branch line 505 is also provided on the outlet line 502. The two ends of the second branch pipe 505 are a first end and a second end, respectively. Wherein, the first end of the second branch pipeline 505 is communicated with the outlet pipeline 502, and the second end port of the second branch pipeline 505 is arranged above the conveyor 300, so as to take out corrosive ions, COD and the like enriched in part of the mother liquor to the outside of the enriched liquor treatment system through the finished salt and the conveyor 300. Therefore, the damage of corrosive ions and the like in the enrichment liquid to the enrichment liquid treatment system can be effectively reduced.
For another example, as shown in fig. 1, a shower head 506 is mounted at a second end port of the second branch pipe 505. The finished salt separated by the centrifuge 200 may generate a large amount of dust during the process of falling to the conveyor 300. And partial mother liquor discharged by the mother liquor pump 500 is sprayed on the conveyor 300 by the second branch pipeline 505 and the spray heads 506, so that the generation of dust can be effectively reduced, and the field environment is effectively protected.
It should be noted here that the present invention is not limited in any way as to the size of the nozzle diameter of the spray head 506. The diameter of the nozzle 506 can be automatically adjusted according to the concentration of the material and the size of the particles in the material. Therefore, the phenomenon that the spray head 506 is blocked by the materials can be effectively prevented.
In one embodiment of the present invention, a liquid level gauge 401 is installed in the mother liquor tank 400. The liquid level meter 401 is electrically connected with the mother liquid pump 500.
As shown in fig. 1, a liquid level meter 401 is installed in the mother liquid tank 400. This level gauge 401 can the inside mother liquor liquid level value of real-time supervision mother liquor tank 400. When the liquid level meter 401 detects that the liquid level value of the mother liquid in the mother liquid tank 400 is lower than the set standard liquid level value, the mother liquid pump 500 stops working. Therefore, the phenomenon that the mother liquid pump 500 is empty can be prevented, the mother liquid pump 500 is prevented from being damaged, and the service life of the mother liquid pump 500 is greatly prolonged.
Further, in one embodiment of the present invention, a gauge cleaning device is mounted on the gauge 401.
According to the above-described embodiment, by providing the cleaning device on the detection probe of the liquid level meter 401, the crystal on the detection probe of the liquid level meter 401 can be cleaned effectively. From this, can greatly promote liquid level detection's accuracy.
In one embodiment of the present invention, a liquid receiving tank 600 for receiving a rinse liquid is provided below the conveyor 300.
Further, in one embodiment of the present invention, the liquid receiving tank 600 is connected to the mother liquid tank 400.
Specifically, as shown in fig. 1, a liquid receiving tank 600 is installed below the conveyor 300. After the enriched liquid treatment system is used, the conveyor 300 can be flushed for subsequent use. After washing the conveyor 300, the washing water can drop into the liquid receiving tank 600. Therefore, the washing water can be prevented from splashing everywhere, and the cleaning work of operators is reduced. Meanwhile, the safety of the environment of the enrichment liquid treatment system is improved.
In addition, the liquid receiving tank 600 and the mother liquor tank 400 are connected to each other so that the washing water can be directly transferred into the mother liquor tank 400 and the evaporation crystallization treatment operation is continued with the mother liquor. Thus, the pretreatment operation process of the washing water is reduced, thereby reducing the amount of water used and the energy consumption of the front-end section.
In one embodiment of the present invention, a line purge is provided on the inlet line 501. Also, the line cleaning apparatus includes a steam flushing line 701 and a distilled water flushing line 702.
For example, as shown in fig. 1, the inlet of the mother liquor pump 500 is connected to the mother liquor tank 400 through an inlet line 501. A line cleaning device is mounted on the inlet line 501. For example, the line cleaning apparatus includes a steam flush line 701 and a distilled water flush line 702. The inlet line 501 is cleaned regularly, which can effectively prevent the occurrence of the phenomenon of shutdown of the enriched liquid treatment system caused by blockage of the inlet line 501.
The pressure of the distilled water flush line 702 is less compared to the pressure of the steam flush line 701. When only a small pressure cleaning operation is required, the inlet line 501 may be flushed using a distilled water flush line 702. When the inlet pipe 501 is clogged with a large amount of crystals or the like, a high-pressure cleaning operation is required, and the inlet pipe 501 may be flushed using the steam flushing pipe 701.
It should be noted that the above-mentioned embodiment is only an illustrative embodiment of the present invention, and does not constitute any limitation to the present invention. The line cleaning means includes, but is not limited to, a distilled water flush line 702 and a steam flush line 701. Meanwhile, the pipe cleaning device is not limited to be disposed on the inlet pipe 501, and corresponding pipe cleaning devices may be installed on the remaining pipes. For example, a line cleaning device may be mounted on each of the outlet line 502, the first branch line 503, and the second branch line 505.
As shown in fig. 1, in one embodiment of the present invention, a pressure monitoring device 800 is installed at the outlet of the mother liquor pump 500.
For example, the pressure monitoring device 800 includes an in situ pressure gauge. However, the pressure monitoring device 800 is not limited to an on-site pressure gauge.
Specifically, as shown in fig. 1, the evaporative crystallization apparatus 100 is connected to a centrifuge 200. The centrifuge 200 is placed above the conveyor 300 to convey the finished salt onto the conveyor 300. The centrifuge 200 is connected to the mother liquor tank 400 to transfer the mother liquor into the mother liquor tank 400.
Wherein, the outlet of the mother liquor pump 500 is connected with the evaporative crystallization device 100 through an outlet pipeline 502. A first branch line 503 is connected to the outlet line 502. The first branch line 503 is also in communication with the mother liquor tank 400. A flow control valve 504 is mounted on the first branch line 503. By adjusting the opening degree of the flow control valve 504, the amount of the mother liquid returned to the mother liquid tank 400 through the first branch line 503 can be controlled, and the amount of the mother liquid transferred to the inside of the evaporative crystallization apparatus 100 can be controlled.
A second branch line 505 is also provided in the outlet line 502. A first end of the second branch pipe 505 is communicated with the outlet pipe 502, and a second end port of the second branch pipe 505 is disposed above the conveyor 300, so as to take out corrosive ions, COD and the like enriched in part of the mother liquor to the outside of the enriched liquid treatment system through the finished salt and the conveyor 300. Therefore, the damage of corrosive ions and the like in the enrichment liquid to the enrichment liquid treatment system can be effectively reduced.
Meanwhile, a shower head 506 is mounted at a second port of the second branch pipe 505. And partial mother liquor discharged by the mother liquor pump 500 is sprayed on the conveyor 300 by the second branch pipeline 505 and the spray heads 506, so that the generation of dust can be effectively reduced, and the field environment is effectively protected.
A liquid level meter 401 is installed in the mother liquid tank 400. This level gauge 401 can the inside mother liquor liquid level value of real-time supervision mother liquor tank 400. When the liquid level meter 401 detects that the liquid level value of the mother liquid in the mother liquid tank 400 is lower than the set standard liquid level value, the mother liquid pump 500 stops working to protect the mother liquid pump 500 from being damaged by air suction.
The liquid level meter 401 is provided with a liquid level meter cleaning device. Through set up belt cleaning device on level gauge 401's test probe, can effectively clear up the crystallization on level gauge 401's the test probe. Furthermore, the accuracy of liquid level detection can be greatly improved.
The inlet of the mother liquor pump 500 is connected to the mother liquor tank 400 by an inlet line 501. A line cleaning device is mounted on the inlet line 501. For example, the line cleaning apparatus includes a steam flush line 701 and a distilled water flush line 702. The inlet line 501 is cleaned regularly, which can effectively prevent the occurrence of the phenomenon of shutdown of the enriched liquid treatment system caused by blockage of the inlet line 501.
A liquid receiving tank 600 for receiving the rinse liquid is provided below the conveyor 300. And the liquid receiving tank 600 is connected to the mother liquid tank 400.
After the enriched liquid treatment system is used, the conveyor 300 can be flushed for subsequent use. After washing the conveyor 300, the washing water can drop into the liquid receiving tank 600. Therefore, the washing water can be prevented from splashing everywhere, and the cleaning work of operators is reduced. Meanwhile, the safety of the environment of the enrichment liquid treatment system is improved.
The rinse water can be directly sent to the mother liquor tank 400 and the evaporative crystallization process operation continues with the mother liquor. Thus, the pretreatment operation process of the washing water is reduced, thereby reducing the amount of water used and the energy consumption of the front-end section.
In addition, a pressure monitoring device 800 is installed at the outlet of the mother liquor pump 500. By installing the pressure monitoring device 800 at the outlet of the mother liquor pump 500, the outlet pressure of the mother liquor pump 500 can be monitored in real time, and the evaporative crystallization device 100 and the like are effectively protected.
The embodiment of the second aspect of the invention provides an enrichment liquid processing method based on the enrichment liquid processing system. The method comprises the following steps:
the aqueous solid salt treated by the evaporative crystallization device 100 is guided into a centrifuge 200;
the centrifuge 200 separates the solid salt containing water into finished salt and mother liquor, the finished salt is conveyed to the outside of the wastewater enrichment liquid treatment system through the conveyor 300, and the mother liquor is drained into the mother liquor tank 400;
the mother liquor in the mother liquor tank 400 is pumped into the evaporative crystallization device 100 through a mother liquor pump 500 for evaporative concentration crystallization treatment;
and the steps are circularly repeated in sequence.
According to the embodiment described above, the enrichment liquid treatment method is carried out based on the enrichment liquid treatment system. The remaining product after the treatment by the evaporative crystallization apparatus 100 can be continuously subjected to the next cycle of treatment operation. Therefore, the effect of zero discharge of the enrichment liquid can be effectively realized.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A pregnant solution treatment system, comprising: an evaporation crystallization device, a centrifuge, a conveyor, a mother liquor tank and a mother liquor pump,
the evaporation crystallization device is connected with the centrifuge, the centrifuge is arranged above the conveyor to convey finished salt onto the conveyor, the centrifuge is connected with the mother liquor tank to convey mother liquor into the mother liquor tank, the mother liquor tank is connected with an inlet of the mother liquor pump through an inlet pipeline, and an outlet of the mother liquor pump is connected with the evaporation crystallization device through an outlet pipeline.
2. The enriched liquid treatment system according to claim 1 wherein a first branch line is provided on said outlet line, said first branch line being connected to said outlet line and said mother liquor tank, and a flow control valve is mounted on said first branch line.
3. The concentrated liquor treatment system according to claim 1 or 2, wherein a second branch pipeline is arranged on the outlet pipeline, a first end of the second branch pipeline is connected with the outlet pipeline, and a second end port of the second branch pipeline is placed above the conveyor.
4. The concentrated solution treatment system according to claim 3, wherein a spray head is installed on the second end port of the second branch pipe.
5. The pregnant solution treatment system of claim 1, wherein a liquid level meter is installed in the mother liquor tank, said liquid level meter being electrically connected to the mother liquor pump.
6. The pregnant solution treatment system according to claim 5, wherein a level meter cleaning device is installed on the level meter.
7. The pregnant solution treatment system of claim 1, wherein a liquid receiving tank for receiving a washing liquid is provided below the conveyor.
8. The concentrated solution treatment system according to claim 7, wherein the liquid receiving tank is connected to the mother liquor tank.
9. The pregnant solution treatment system of claim 1, wherein a line cleaning device is provided on the inlet line, and wherein the line cleaning device comprises a steam flushing line and a distilled water flushing line.
10. A method of enrichment liquor treatment based on the enrichment liquor treatment system of any one of claims 1 to 9, comprising:
draining the aqueous solid salt treated by the evaporative crystallization device into the centrifuge;
the centrifuge separates the solid salt containing water into finished salt and mother liquor, the finished salt is conveyed to the outside of the enrichment solution treatment system through the conveyor, and the mother liquor is drained into the mother liquor tank;
the mother liquor in the mother liquor tank is pumped into the evaporative crystallization device by the mother liquor pump to be subjected to evaporative concentration crystallization treatment;
and the steps are circularly repeated in sequence.
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| CN202110530291.5A CN113144663A (en) | 2021-05-14 | 2021-05-14 | Enrichment liquid treatment system and treatment method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206318826U (en) * | 2016-12-21 | 2017-07-11 | 北京燕山翔宇环保工程技术有限公司 | Desulfurization wastewater treatment system and automatic waste water processing system |
| CN206886880U (en) * | 2017-04-15 | 2018-01-16 | 山西卓联锐科科技有限公司 | A kind of processing system containing high-salt wastewater |
| CN107670323A (en) * | 2017-11-03 | 2018-02-09 | 山东齐鲁石化工程有限公司 | Sulphur ammonium crystallization recovery energy saving technique and device in acrylonitrile process |
| 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 |
| CN110002522A (en) * | 2019-03-26 | 2019-07-12 | 江苏科化节能环保设备有限公司 | Solid waste landfill site percolate evaporated crystallization device and method |
| CN111072204A (en) * | 2019-12-11 | 2020-04-28 | 陕西航天机电环境工程设计院有限责任公司 | Submerged combustion type evaporative crystallization system applied to high-salt and high-COD wastewater |
-
2021
- 2021-05-14 CN CN202110530291.5A patent/CN113144663A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206318826U (en) * | 2016-12-21 | 2017-07-11 | 北京燕山翔宇环保工程技术有限公司 | Desulfurization wastewater treatment system and automatic waste water processing system |
| CN206886880U (en) * | 2017-04-15 | 2018-01-16 | 山西卓联锐科科技有限公司 | A kind of processing system containing high-salt wastewater |
| CN107670323A (en) * | 2017-11-03 | 2018-02-09 | 山东齐鲁石化工程有限公司 | Sulphur ammonium crystallization recovery energy saving technique and device in acrylonitrile process |
| CN110002522A (en) * | 2019-03-26 | 2019-07-12 | 江苏科化节能环保设备有限公司 | Solid waste landfill site percolate evaporated crystallization device and method |
| 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 |
| CN111072204A (en) * | 2019-12-11 | 2020-04-28 | 陕西航天机电环境工程设计院有限责任公司 | Submerged combustion type evaporative crystallization system applied to high-salt and high-COD wastewater |
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Application publication date: 20210723 |