CN112661325A - Circulated formula's nanometer powder filters piece-rate system - Google Patents
Circulated formula's nanometer powder filters piece-rate system Download PDFInfo
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- CN112661325A CN112661325A CN202110039844.7A CN202110039844A CN112661325A CN 112661325 A CN112661325 A CN 112661325A CN 202110039844 A CN202110039844 A CN 202110039844A CN 112661325 A CN112661325 A CN 112661325A
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Abstract
The invention discloses a circulating nano powder filtering and separating system, which comprises a reaction kettle, a cross-cutting flow filtering device, a circulating filtering device, a concentrated solution storage tank, a filter press plate frame machine and a water collecting tank which are sequentially connected through pipelines; the cross-cut flow filtering device is internally filled with a ceramic filter membrane, the cross-cut flow filtering device is provided with a first liquid inlet, a filtrate outlet and a slurry outlet, a discharge port of the reaction kettle is communicated with the first liquid inlet, the slurry outlet is communicated with a material storage tank through a pipeline, the material storage tank is also communicated with the first liquid inlet through a pipeline, and a material pumping pump and a circulating material valve are also arranged on the pipeline between the material storage tank and the first liquid inlet; the circulating filter device is provided with a second liquid inlet, a dilute liquid outlet and a concentrated liquid outlet, the filtrate outlet is communicated with the second liquid inlet, the dilute liquid outlet is communicated with the first liquid inlet, and the concentrated liquid outlet is communicated with a concentrated liquid tank; the mud outlet of the filter press plate frame machine is communicated with a mud tank. The invention has practicability and universality for filtering the nano material, and improves the utilization rate of flushing fluid.
Description
Technical Field
The invention relates to the technical field of sewage filtering equipment, in particular to a circulating type nano powder filtering and separating system.
Background
With the rapid development of economy in China, the discharge amount of wastewater and waste liquid generated in various industrial production processes is increasing day by day, wherein the industrial wastewater comprises production wastewater, production sewage and cooling water. Water resources in the world are increasingly tense, and industrial wastewater and waste liquid discharged in large quantities not only pollute the water resources, but also further aggravate the shortage degree of the water resources in local areas; generally, industrial wastewater generally contains a large amount of fine particles and free anions and cations, and the common sewage treatment technology in factories generally adopts a sedimentation tank and a positive pressure microporous filter to carry out combined filtration treatment, so that the sewage treatment methods are low in efficiency, dust particles in the sewage are settled, time is wasted very much, and washing water is not efficiently utilized to cause waste.
The existing sewage filtering device mostly adopts a mode of high-pressure water centralized washing or flocculation precipitation to achieve an ideal filtering effect, but in the field of some preparation nano powder, the possibility of material leakage exists due to small particle size in the process of subsequent process treatment, and slurry is easy to block during filtering and purification, so that the actual production is greatly hindered to be orderly carried out, a filter plate of the filtering device is not easy to detach and clean and needs to be frequently replaced, and the cost for enabling the filtrate to reach the discharge standard is greatly increased.
Disclosure of Invention
The invention aims to provide a circulating type nano powder filtering and separating system, which is used for solving the problems in the prior art, realizing the filtering of small-particle solid magazines and improving the utilization rate of flushing liquid.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a circulating nano powder filtering and separating system, which comprises a reaction kettle, a cross-cutting flow filtering device, a circulating filtering device, a concentrated solution storage tank, a filter press plate frame machine and a water collecting tank, wherein the reaction kettle, the cross-cutting flow filtering device, the circulating filtering device, the concentrated solution storage tank, the filter press plate frame machine and the water collecting tank are sequentially connected through pipelines; the cross-flow filtration device is internally filled with a ceramic filter membrane, the cross-flow filtration device is provided with a first liquid inlet, a filtrate outlet and a slurry outlet, a discharge port of the reaction kettle is communicated with the first liquid inlet, the slurry outlet is communicated with a storage tank through a pipeline, the storage tank is also communicated with the first liquid inlet through a pipeline, and a material pumping pump and a circulating material valve are also arranged on the pipeline between the storage tank and the first liquid inlet; the circulating filter device is provided with an anode plate and a cathode plate, a cation exchange membrane and an anion exchange membrane which are arranged at intervals are arranged between the anode plate and the cathode plate, a second liquid inlet, a dilute liquid outlet and a concentrated liquid outlet are arranged on the circulating filter device, the filtrate outlet is communicated with the second liquid inlet, the dilute liquid outlet is communicated with the first liquid inlet, and the concentrated liquid outlet is communicated with the concentrated liquid tank; the concentrated liquid tank is provided with a supernatant outlet and a slurry outlet, the slurry outlet is communicated with an inlet of the filter pressing plate-and-frame machine, the supernatant outlet is communicated with the water collecting tank, and a slurry outlet of the filter pressing plate-and-frame machine is communicated with a slurry tank.
Preferably, be provided with the stirring rake in the reation kettle, the output shaft of motor links firmly with the top of stirring rake, the motor can drive the stirring rake rotates.
Preferably, the number of cation exchange membranes and anion exchange membranes is equal.
Preferably, the discharge port of the reaction kettle is communicated with the first liquid inlet through a discharge pipe, the discharge pipe is provided with a mixing pump and a pressure gauge, and the pressure gauge is closer to the first liquid inlet than the mixing pump.
Preferably, a valve and a conductivity detector are arranged on a pipeline between the slurry outlet and the storage tank, and the conductivity detector is closer to the storage tank than the valve.
Preferably, the filtrate outlet is communicated with the second liquid inlet through a first filtrate pipe, and a filtrate pump is arranged on the first filtrate pipe; the pipeline between the storage tank and the first liquid inlet is a second filtrate pipe.
Preferably, the dilute liquid outlet is communicated with the first liquid inlet through a dilute liquid pipe, a concentration detector and a dilute liquid pump are arranged on the dilute liquid pipe, and the dilute liquid pump is close to the first liquid inlet compared with the concentration detector.
Preferably, a flocculant inlet is further arranged on the concentrated liquid tank, and the flocculant inlet is communicated with a flocculant feeding pipe; a supernatant pump is arranged on a pipeline between the supernatant outlet and the water collecting tank; a slurry pump is arranged on a pipeline between the slurry outlet and the filter pressing plate frame machine; and a pipeline between the filter pressing plate frame machine and the water collecting tank is a sewage pipe.
Compared with the prior art, the invention has the following technical effects:
the circulating nano powder filtering and separating system realizes the filtering of small-particle solid magazines and improves the utilization rate of flushing liquid. The circulating nano powder filtering and separating system can be used for filtering environments with different working conditions, and embodies the practicability and universality of nano material filtering. The device can realize the circular and reciprocating filtration and washing during filtration, greatly utilizes the washing liquid, not only improves the treatment capacity of the filtrate and the use efficiency of the washing water, but also efficiently realizes the separation and purification of products, has high integration and automation and saves the production cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a recyclable nano-powder filtration and separation system according to the present invention;
FIG. 2 is a schematic diagram of a part of the structure of the recyclable nano-powder filtering and separating system according to the present invention;
FIG. 3 is a schematic diagram of a second partial structure of the recyclable nano-powder filtering and separating system according to the present invention;
wherein: 100. a recyclable nano powder filtering and separating system; 1. an electric motor; 2. a stirring paddle; 3. a reaction kettle; 4. a discharge valve; 5. a mixing pump; 6. discharging the material pipe; 7. a pressure gauge; 8. a fresh water pump; 9. a circulating material valve; 10. a filtrate outlet; 11. a ceramic filter membrane; 12. a conductivity detector; 13. a material storage tank; 14. a filtrate pump; 15. a concentration detector; 16. a material pumping pump; 17. a first filtrate pipe; 18. a thin liquid pipe; 19. a fresh water valve; 20. a concentrate valve; 21. a cathode plate; 22. an anode plate; 23. a cation exchange membrane; 24. an anion exchange membrane; 25. feeding a flocculating agent into a pipe; 26. a concentrated solution storage tank; 27. a slurry pump; 28. filter pressing plate frame machine; 29. a mud tank; 30. a water collecting tank; 31. a sewage pipe; 32. a supernatant outlet; 33. a slurry outlet; 34. a dilute liquid outlet; 35. a concentrated solution outlet; 36. a sewage inlet; 37. a supernatant pump; 38. a floating ball liquid level meter; 39. a cross-flow filtration device; 40. a slurry outlet; 41. a circulating filtration device; 42. a second filtrate pipe.
Detailed Description
The technical solutions 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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a circulating type nano powder filtering and separating system, which is used for solving the problems in the prior art, realizing the filtering of small-particle solid magazines and improving the utilization rate of flushing liquid.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 3: the embodiment provides a circulated formula nanometer powder filtration and separation system 100, including reation kettle 3, crosscut flow filtration device 39, circulating filtration device 41, concentrate storage tank 26, filter-pressing plate frame machine 28 and the collecting basin 30 of tube coupling in proper order, the pipeline between the sewage entry 36 of filter-pressing plate frame machine 28 and collecting basin 30 is sewage pipe 31.
Wherein, the crosscut flow filtering device 39 is filled with a ceramic filter membrane 11, the crosscut flow filtering device 39 is provided with a first liquid inlet, a filtrate outlet 10 and a slurry outlet 40, and the circulating filtering device 41 is provided with a second liquid inlet, a dilute liquid outlet 34 and a concentrated liquid outlet 35; be provided with stirring rake 2 among the reation kettle 3, motor 1's output shaft links firmly with stirring rake 2's top, and motor 1 can drive stirring rake 2 and rotate. A discharge port of the reaction kettle 3 is communicated with the first liquid inlet through a discharge pipe 6, a discharge valve 4, a mixing pump 5 and a pressure gauge 7 are arranged on the discharge pipe 6, and the pressure gauge 7 is close to the first liquid inlet compared with the mixing pump 5.
The slurry outlet 40 is communicated with the storage tank 13 through a pipeline, a valve and a conductivity detector 12 are arranged on the pipeline between the slurry outlet 40 and the storage tank 13, and the conductivity detector 12 is closer to the storage tank 13 than the valve. The filtrate outlet 10 is communicated with the second liquid inlet through a first filtrate pipe 17, and a filtrate pump 14 is arranged on the first filtrate pipe 17. The storage tank 13 is also communicated with the first liquid inlet through a second filtrate pipe 42, and the second filtrate pipe 42 is provided with a material pumping pump 16 and a circulating material valve 9.
The circulating filter device 41 is provided with an anode plate 22 and a cathode plate 21, a cation exchange membrane 23 and an anion exchange membrane 24 which are arranged at intervals are arranged between the anode plate 22 and the cathode plate 21, and the number of the cation exchange membranes 23 is equal to that of the anion exchange membranes 24. The filtrate outlet 10 is communicated with the second liquid inlet, the weak solution outlet 34 is communicated with the first liquid inlet through a weak solution pipe 18, the weak solution pipe 18 is provided with a concentration detector 15 and a weak solution pump 8, and the weak solution pump 8 is closer to the first liquid inlet than the concentration detector 15; the concentrate outlet 35 is in communication with a concentrate tank.
A supernatant outlet 32 and a slurry outlet 33 are arranged on the concentrated liquid tank, the supernatant outlet 32 is positioned at the top of the concentrated liquid tank, the slurry outlet 33 is positioned at the bottom of the concentrated liquid tank, the slurry outlet 33 is communicated with an inlet of the filter press frame 28, and a slurry pump 27 is arranged on a pipeline between the slurry outlet 33 and the filter press frame 28; the supernatant outlet 32 is communicated with the water collecting tank 30, and a supernatant pump 37 is arranged on a pipeline between the supernatant outlet 32 and the water collecting tank 30; the mud outlet of the filter press plate frame 28 is communicated with a mud tank 29. The concentrated solution tank is also provided with a flocculant inlet and a floating ball liquid level meter 38, and the flocculant inlet is communicated with a flocculant feeding pipe 25.
In the operation of the circulating nano-powder filtering and separating system 100 of this embodiment, the pressure gauge 7 of the crossflow filtration device 39 controls the pressure of the raw filtered slurry, and thus the flow rate of the raw filtered slurry flowing into the crossflow device. It is pointed out that the conductivity of the washing water for filtering is less than or equal to 2 mu s/cm so as to be suitable for some electronic grade nano powder; the original slurry is filtered by a ceramic filter membrane 11 of a cross-flow filtering device 39, the well filtered slurry is collected by a storage tank 13, and a conductivity detector 12 controls the impurity content requirement required by the original slurry filtration. The salt solution containing a high concentration filtered by the cross-flow filtration device 39 is pumped into the circulation filtration device 41 from the filtrate pump 14 through the first filtrate pipe 17.
The filtrate containing high-concentration salt is separated in the circulating filter device 41 with high efficiency, after the filtrate containing high-concentration salt is separated by the circulating filter device 41, part of the filtrate is changed to reach the conductivity of washing water, and the washing water flows into the ceramic filter membrane 11 through the fresh water outlet 34 and the fresh water pipe 18 under the control of the flow rate of the fresh water valve 19; the rest part of the filtrate of the high-concentration salt is concentrated solution, the dilute solution in the embodiment refers to the liquid with the conductivity of 2-4 mus/cm, and the concentrated solution refers to the liquid with the conductivity of more than 2000 mus/cm; the concentrated solution flows into a concentrated solution storage tank 26 through a concentrated solution outlet 35 and a concentrated solution valve 20; meanwhile, a flocculating agent is added into a concentrated solution storage tank 26 through a flocculating agent feeding pipe 25 for flocculation and precipitation. The supernatant in the concentrate tank 26 is discharged from the supernatant outlet 32 and pumped to the sump 30 by the supernatant pump 37. The precipitated slurry in the concentrated solution storage tank 26 is discharged from a slurry outlet 33, is pumped into a filter press plate frame 28 through a slurry pump 27 to realize solid-liquid separation, the solid impurities after filter pressing are collected by a slurry tank 29, and the filtrate after filter pressing is collected by a water collecting tank 30.
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A circulated formula nanometer powder filters piece-rate system which characterized in that: comprises a reaction kettle, a cross-cutting flow filtering device, a circulating filtering device, a concentrated solution storage tank, a filter-pressing plate frame machine and a water collecting tank which are connected by pipelines in sequence; the cross-flow filtration device is internally filled with a ceramic filter membrane, the cross-flow filtration device is provided with a first liquid inlet, a filtrate outlet and a slurry outlet, a discharge port of the reaction kettle is communicated with the first liquid inlet, the slurry outlet is communicated with a storage tank through a pipeline, the storage tank is also communicated with the first liquid inlet through a pipeline, and a material pumping pump and a circulating material valve are also arranged on the pipeline between the storage tank and the first liquid inlet; the circulating filter device is provided with an anode plate and a cathode plate, a cation exchange membrane and an anion exchange membrane which are arranged at intervals are arranged between the anode plate and the cathode plate, a second liquid inlet, a dilute liquid outlet and a concentrated liquid outlet are arranged on the circulating filter device, the filtrate outlet is communicated with the second liquid inlet, the dilute liquid outlet is communicated with the first liquid inlet, and the concentrated liquid outlet is communicated with the concentrated liquid tank; the concentrated liquid tank is provided with a supernatant outlet and a slurry outlet, the slurry outlet is communicated with an inlet of the filter pressing plate-and-frame machine, the supernatant outlet is communicated with the water collecting tank, and a slurry outlet of the filter pressing plate-and-frame machine is communicated with a slurry tank.
2. The recyclable nano powder filtering and separating system as claimed in claim 1, wherein: be provided with the stirring rake among the reation kettle, the output shaft of motor links firmly with the top of stirring rake, the motor can drive the stirring rake rotates.
3. The recyclable nano powder filtering and separating system as claimed in claim 1, wherein: the number of the cation exchange membranes and the number of the anion exchange membranes are equal.
4. The recyclable nano powder filtering and separating system as claimed in claim 1, wherein: the discharge port of the reaction kettle is communicated with the first liquid inlet through a discharging pipe, a mixing pump and a pressure gauge are arranged on the discharging pipe, and the pressure gauge is closer to the first liquid inlet than the mixing pump.
5. The recyclable nano powder filtering and separating system as claimed in claim 1, wherein: and a valve and a conductivity detector are arranged on a pipeline between the slurry outlet and the storage tank, and the conductivity detector is closer to the storage tank than the valve.
6. The recyclable nano powder filtering and separating system as claimed in claim 1, wherein: the filtrate outlet is communicated with the second liquid inlet through a first filtrate pipe, and a filtrate pump is arranged on the first filtrate pipe; the pipeline between the storage tank and the first liquid inlet is a second filtrate pipe.
7. The recyclable nano powder filtering and separating system as claimed in claim 1, wherein: the dilute liquid outlet is communicated with the first liquid inlet through a dilute liquid pipe, a concentration detector and a dilute liquid pump are arranged on the dilute liquid pipe, and the dilute liquid pump is closer to the first liquid inlet than the concentration detector.
8. The recyclable nano powder filtering and separating system as claimed in claim 1, wherein: a flocculant inlet is also formed in the concentrated liquid tank and communicated with a flocculant feeding pipe; a supernatant pump is arranged on a pipeline between the supernatant outlet and the water collecting tank; a slurry pump is arranged on a pipeline between the slurry outlet and the filter pressing plate frame machine; and a pipeline between the filter pressing plate frame machine and the water collecting tank is a sewage pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110039844.7A CN112661325A (en) | 2021-01-13 | 2021-01-13 | Circulated formula's nanometer powder filters piece-rate system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110039844.7A CN112661325A (en) | 2021-01-13 | 2021-01-13 | Circulated formula's nanometer powder filters piece-rate system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9122914D0 (en) * | 1990-10-30 | 1991-12-11 | Ionics Italba Spa | Process for purifying water by means of a combination of membrane separation units and related apparatus |
| CN105000737A (en) * | 2015-07-13 | 2015-10-28 | 浙江沐源环境工程有限公司 | Industrial sewage treatment system and sewage treatment method |
| CN107758941A (en) * | 2017-11-08 | 2018-03-06 | 博天环境工程（北京）有限公司 | A kind of green energy conservation desulfurization wastewater treatment system |
| CN210145851U (en) * | 2019-12-24 | 2020-03-17 | 山东蓝想环境科技股份有限公司 | Efficient water-saving system for circulating water pollution discharge |
| CN212025040U (en) * | 2019-12-23 | 2020-11-27 | 西安西热水务环保有限公司 | Electrodialysis desalination treatment system for circulating water and sewage of thermal power plant |
-
2021
- 2021-01-13 CN CN202110039844.7A patent/CN112661325A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9122914D0 (en) * | 1990-10-30 | 1991-12-11 | Ionics Italba Spa | Process for purifying water by means of a combination of membrane separation units and related apparatus |
| CN105000737A (en) * | 2015-07-13 | 2015-10-28 | 浙江沐源环境工程有限公司 | Industrial sewage treatment system and sewage treatment method |
| CN107758941A (en) * | 2017-11-08 | 2018-03-06 | 博天环境工程（北京）有限公司 | A kind of green energy conservation desulfurization wastewater treatment system |
| CN212025040U (en) * | 2019-12-23 | 2020-11-27 | 西安西热水务环保有限公司 | Electrodialysis desalination treatment system for circulating water and sewage of thermal power plant |
| CN210145851U (en) * | 2019-12-24 | 2020-03-17 | 山东蓝想环境科技股份有限公司 | Efficient water-saving system for circulating water pollution discharge |
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Effective date of registration: 20230117 Address after: 314400 2nd floor, building 16, no.906, Asia Pacific Road, Nanhu District, Jiaxing City, Zhejiang Province Applicant after: SHANGHAI UNIVERSITY (ZHEJIANG JIAXING) EMERGING INDUSTRY Research Institute Applicant after: SUZHOU SUNMUN TECHNOLOGY Co.,Ltd. Address before: 314400 2nd floor, building 16, no.906, Asia Pacific Road, Nanhu District, Jiaxing City, Zhejiang Province Applicant before: SHANGHAI UNIVERSITY (ZHEJIANG JIAXING) EMERGING INDUSTRY Research Institute |
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