CN219194568U - Waste water treatment device - Google Patents
Waste water treatment device Download PDFInfo
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- CN219194568U CN219194568U CN202223598869.XU CN202223598869U CN219194568U CN 219194568 U CN219194568 U CN 219194568U CN 202223598869 U CN202223598869 U CN 202223598869U CN 219194568 U CN219194568 U CN 219194568U
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- centrifuge
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 25
- 239000002351 wastewater Substances 0.000 claims abstract description 83
- 238000006243 chemical reaction Methods 0.000 claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000002425 crystallisation Methods 0.000 claims abstract description 17
- 230000008025 crystallization Effects 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000008213 purified water Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000005243 fluidization Methods 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 6
- 230000004308 accommodation Effects 0.000 claims 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 238000004064 recycling Methods 0.000 abstract description 8
- 239000003344 environmental pollutant Substances 0.000 abstract description 6
- 231100000719 pollutant Toxicity 0.000 abstract description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000010840 domestic wastewater Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 208000028659 discharge Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
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Abstract
The utility model discloses a wastewater treatment device, which relates to the technical field of wastewater pollution treatment in the steel industry, and comprises the following components: a reaction mechanism; the centrifugal mechanism is arranged at the lower side of the reaction mechanism and is communicated with the reaction mechanism; the crystallization mechanism is arranged at the lower side of the centrifugal mechanism and is communicated with the centrifugal mechanism; the reaction mechanism comprises a reaction kettle, the reaction kettle is provided with an inner shell and an outer shell, an accommodating space for accommodating wastewater is formed in the inner shell, a preheating space is formed between the inner shell and the outer shell, hot steam can flow through the preheating space to heat the accommodating space, and at least part of the hot steam is condensed into liquid purified water in the preheating space and is collected. The wastewater treatment device provided by the utility model can solve the wastewater pollutant treatment problem of a steel mill, and can improve the water resource recycling rate.
Description
Technical Field
The utility model relates to the technical field of wastewater pollution treatment in the steel industry, in particular to a wastewater treatment device.
Background
The comprehensive waste water of the whole steel plant mainly refers to production waste water from the working procedures of sintering pellets, steelmaking, ironmaking, hot rolling and the like, mainly comprises the sewage discharged by circulating cooling water systems such as clean rings, turbid rings and the like, and also comprises a part of high-salt-content waste water (such as reverse osmosis strong brine and resin regeneration waste liquid) discharged by a desalting water station and a softening water station matched with devices such as power generation, boilers and the like, and waste water generated in the production process, such as conveyor belt cleaning, terrace flushing, wet dedusting and domestic waste water, and also comprises a small amount of treated coking waste water, cold rolling waste water, other waste water and plant domestic waste water (not more than 30%). The steel plant is a water consuming large household and a water draining large household, the comprehensive sewage treatment of steel meets the environmental protection and water saving targets of enterprises, the water drainage amount accounts for about 40% of the new water consumption, the recycling cost is relatively low, and the method is an important direction of recycling the waste water of the steel industry.
In order to solve the problem, the evaporative crystallization technology is one of the common methods in the zero discharge treatment of wastewater, the basic principle is that the surface heat exchange mode is adopted, the wastewater entering an evaporator is heated to boiling evaporation through steam or an electric heater, the moisture in the wastewater is gradually evaporated, the water vapor is cooled and then is condensed into water again for recycling, the soluble solids in the wastewater are trapped in residual liquid, and finally are separated out in a crystal form along with the improvement of concentration multiple, a mother liquid with higher concentration and complex components always exists in the process, wherein the mother liquid contains higher organic pollutants and a mixed salt system mainly comprising sodium chloride and sodium sulfate, and the common method is to collect and pump the mother liquid into links such as slag stewing at the front end of a steel mill for digestion. However, with increasing environmental protection targets and strict requirements on chlorine content of microcrystalline powder produced after slag flushing, such rough treatment measures of mother liquor are in need of improvement.
Disclosure of Invention
The utility model aims to provide a wastewater treatment device which solves the wastewater pollutant treatment problem of a steel mill and can improve the water resource recycling rate.
The above object of the present utility model can be achieved by the following technical solutions:
the utility model provides a wastewater treatment device, comprising:
a reaction mechanism;
the centrifugal mechanism is arranged at the lower side of the reaction mechanism and is communicated with the reaction mechanism;
the crystallization mechanism is arranged at the lower side of the centrifugal mechanism and is communicated with the centrifugal mechanism, and the crystallization mechanism can generate hot steam;
the reaction mechanism comprises a reaction kettle, the reaction kettle is provided with an inner shell and an outer shell, an accommodating space for accommodating wastewater is formed in the inner shell, a preheating space is formed between the inner shell and the outer shell, hot steam can flow through the preheating space to heat the accommodating space, and at least part of the hot steam is condensed into liquid purified water in the preheating space and is collected.
In a preferred embodiment, the crystallization mechanism comprises:
the drying and fluidizing unit is used for heating the wastewater, water in the wastewater is heated and evaporated to form the hot steam, and salt in the wastewater is dehydrated to form crystals;
and the heating unit is arranged at the lower side of the drying and fluidizing unit and is used for heating the drying and fluidizing bed.
In a preferred embodiment, the drying and fluidizing unit comprises:
a fluidization tube in communication with the centrifuge mechanism;
and a fluidized bed disposed at a lower side of the fluidization tube, through which the wastewater flows onto the fluidized bed, for heating the wastewater and generating the hot steam and the crystallization.
In a preferred embodiment, the heating unit comprises:
the air heater is used for generating hot air flow;
the hot air pipe is communicated with the hot air blower, the hot air pipe is arranged at the lower side of the fluidized bed, and the hot air flow flows through the hot air pipe and heats the fluidized bed.
In a preferred embodiment, the reaction mechanism comprises:
the steam inlet pipe is arranged on the outer wall of one side of the outer shell and is communicated with the preheating space;
the steam exhaust pipe is arranged on the outer wall of the other side of the outer shell, the steam exhaust pipe is arranged opposite to the steam inlet pipe, and the steam exhaust pipe is communicated with the preheating space;
wherein the hot steam generated from the fluidized bed flows into the preheating space through the steam inlet pipe and flows out of the preheating space through the steam outlet pipe to heat the accommodating space.
In a preferred embodiment, the reaction mechanism comprises a wastewater outlet pipe, and the wastewater outlet pipe is arranged at the lower end of the reaction kettle and is communicated with the accommodating space.
In a preferred embodiment, the centrifugal mechanism comprises a centrifuge, the waste water outlet pipe is communicated with the centrifuge so that the waste water can flow into the centrifuge through the waste water outlet pipe, the centrifuge is used for separating the waste water, and the fluidization pipe is communicated with the centrifuge so that at least part of the waste water flows out of the centrifuge through the fluidization pipe.
In a preferred embodiment, the reaction mechanism comprises a reaction cover plate, the reaction cover plate is covered at the upper end of the reaction kettle, and at least one exhaust port is formed on the reaction cover plate.
In a preferred embodiment, the reaction mechanism comprises a waste water inlet pipe arranged on the reaction cover plate and extending into the accommodating space, wherein the waste water inlet pipe is communicated with the accommodating space, and the waste water flows into the accommodating space through the waste water inlet pipe.
In a preferred embodiment, the reaction mechanism further comprises a waste liquid stirrer, which is arranged on the reaction cover plate and extends into the accommodating space, and the waste liquid stirrer is used for stirring the waste water in the accommodating space.
The utility model has the characteristics and advantages that:
the wastewater treatment device provided by the utility model can evaporate wastewater in the crystallization mechanism and crystallize polluted salt substances so as to rapidly remove pollutants in the wastewater, and the evaporated wastewater forms hot steam and flows into the reaction mechanism to provide certain heat for the reaction kettle, so that the phenomenon that salt crystals are precipitated in the wastewater in the reaction kettle too low in temperature is prevented, the effect of removing the wastewater is prevented from being reduced, and the reaction kettle is prevented from being blocked by solid substances. The hot steam is condensed into purified water when meeting cold in the reaction mechanism, so that the water resource can be conveniently recycled. The wastewater treatment device provided by the utility model can realize the recycling recovery of wastewater of a zero-emission system of a steel mill, and the generated pollutant salt mainly comprises sodium chloride and sodium sulfate, can be used as a snow removing agent in winter and the like, is a complete set of integrated combination devices, combines a traditional wastewater tank, a centrifugal machine and a dryer, has a compact overall equipment structure, and is convenient to install, detach and move.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the construction of a wastewater treatment apparatus according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, may be in communication with each other in two elements, may be directly connected, or may be indirectly connected through an intermediary, and the specific meaning of the terms may be understood by those of ordinary skill in the art in view of the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1, an embodiment of the present utility model provides a wastewater treatment apparatus, including: a reaction mechanism 1; the centrifugal mechanism 2 is arranged at the lower side of the reaction mechanism 1, and the centrifugal mechanism 2 is communicated with the reaction mechanism 1; the crystallization mechanism 3 is arranged at the lower side of the centrifugal mechanism 2, the crystallization mechanism 3 is communicated with the centrifugal mechanism 2, and the crystallization mechanism 3 can generate hot steam; wherein the reaction mechanism 1 comprises a reaction kettle 11, the reaction kettle 11 is provided with an inner shell 111 and an outer shell 112, an accommodating space 12 for accommodating wastewater is formed inside the inner shell 111, a preheating space 13 is formed between the inner shell 111 and the outer shell 112, hot steam can flow through the preheating space 13 to heat the accommodating space 12, and at least part of the hot steam is condensed into liquid purified water in the preheating space 13 and is collected.
To further explain the specific construction of the wastewater treatment apparatus according to the embodiment of the present utility model, the following describes the specific construction, connection relationship, etc., thereof, wherein:
in a preferred embodiment, the crystallization mechanism 3 comprises: a drying and fluidizing unit 31 for heating the wastewater, wherein moisture in the wastewater is heated and evaporated to form hot steam, and salt in the wastewater is dehydrated to form crystals; and a heating unit 32 provided at a lower side of the drying and fluidizing unit 31, the heating unit 32 for heating the drying and fluidizing bed.
In a preferred embodiment, the drying and fluidizing unit 31 comprises: a fluidization tube 311 which communicates with the centrifugal mechanism 2; a fluidized bed 312 is provided at the lower side of the fluidization pipe 311, and wastewater flows onto the fluidized bed 312 through the fluidization pipe 311, and the fluidized bed 312 serves to heat the wastewater and generate hot steam and crystallization.
In a preferred embodiment, the heating unit 32 comprises: a hot air blower 321 for generating a hot air flow; a hot air duct 322 in communication with the hot air blower 321, the hot air duct 322 being disposed at the lower side of the fluidized bed 312, and a hot air flow flowing through the hot air duct 322 and heating the fluidized bed 312.
In a preferred embodiment, the reaction mechanism 1 comprises: a steam inlet pipe 14 provided on an outer wall of one side of the outer case 112, the steam inlet pipe 14 being communicated with the preheating space 13; a steam exhaust pipe 15 disposed on the outer wall of the other side of the outer case 112, the steam exhaust pipe 15 being disposed opposite to the steam intake pipe 14, the steam exhaust pipe 15 being communicated with the preheating space 13; wherein the hot steam generated at the fluidized bed 312 flows into the preheating space 13 through the steam inlet pipe 14 and flows out of the preheating space 13 through the steam outlet pipe 15 to heat the accommodating space 12.
In a preferred embodiment, the reaction mechanism 1 comprises a wastewater outlet pipe 16 which is arranged at the lower end of the reaction kettle 11 and is communicated with the accommodating space 12.
In a preferred embodiment, the centrifuge mechanism 2 includes a centrifuge 21, the waste water outlet pipe 16 being in communication with the centrifuge 21 to enable waste water to flow into the centrifuge 21 through the waste water outlet pipe 16, the centrifuge 21 being configured to separate waste water, and the fluidization pipe 311 being in communication with the centrifuge 21 to enable at least a portion of the waste water to flow out of the centrifuge 21 through the fluidization pipe 311.
In a preferred embodiment, the reaction mechanism 1 comprises a reaction cover plate 17, which is arranged at the upper end of the reaction kettle 11 in a covering manner, and at least one exhaust port 171 is formed on the reaction cover plate 17.
In a preferred embodiment, the reaction mechanism 1 comprises a waste water inlet pipe 18 arranged on the reaction cover plate 17 and extending into the accommodating space 12, wherein the waste water inlet pipe 18 is communicated with the accommodating space 12, and waste water flows into the accommodating space 12 through the waste water inlet pipe 18.
In a preferred embodiment, the reaction mechanism 1 further comprises a waste liquid stirrer 19 disposed on the reaction cover 17 and extending into the accommodating space 12, and the waste liquid stirrer 19 is used for stirring the waste water in the accommodating space 12.
Based on the above structural description, the wastewater treatment device of the embodiment of the utility model has the following beneficial effects:
the wastewater treatment device provided by the embodiment of the utility model can evaporate wastewater in the crystallization mechanism 3 and crystallize polluted salt substances so as to rapidly remove pollutants in the wastewater, the evaporated wastewater forms hot steam and flows into the reaction mechanism 1 to provide certain heat for the reaction kettle 11, so that the premature precipitation of salt crystals due to the excessively low temperature of the wastewater in the reaction kettle 11 is prevented, the pollution removal effect of the wastewater is prevented from being reduced, and the reaction kettle 11 is prevented from being blocked by solid substances. The hot steam is condensed into purified water when meeting cold in the reaction mechanism 1, thereby being convenient for recycling water resources. The wastewater treatment device provided by the utility model can realize the recycling recovery of wastewater of a zero-emission system of a steel mill, and the generated pollutant salt mainly comprises sodium chloride and sodium sulfate, can be used as a snow removing agent in winter and the like, is a complete set of integrated combination devices, combines a traditional wastewater tank, a centrifugal machine 21 and a dryer, has a compact whole equipment structure, and is convenient to install, detach and move.
The foregoing is merely exemplary embodiments of the present utility model and those skilled in the art may make various modifications and alterations to the embodiments of the present utility model based on the disclosure herein without departing from the spirit and scope of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Claims (10)
1. A wastewater treatment apparatus, comprising:
a reaction mechanism;
the centrifugal mechanism is arranged at the lower side of the reaction mechanism and is communicated with the reaction mechanism;
the crystallization mechanism is arranged at the lower side of the centrifugal mechanism and is communicated with the centrifugal mechanism, and the crystallization mechanism can generate hot steam;
the reaction mechanism comprises a reaction kettle, the reaction kettle is provided with an inner shell and an outer shell, an accommodating space for accommodating wastewater is formed in the inner shell, a preheating space is formed between the inner shell and the outer shell, hot steam can flow through the preheating space to heat the accommodating space, and at least part of the hot steam is condensed into liquid purified water in the preheating space and is collected.
2. The wastewater treatment apparatus of claim 1, wherein the crystallization mechanism comprises:
the drying and fluidizing unit is used for heating the wastewater, water in the wastewater is heated and evaporated to form the hot steam, and salt in the wastewater is dehydrated to form crystals;
and the heating unit is arranged at the lower side of the drying and fluidization unit and is used for heating the drying and fluidization unit.
3. The wastewater treatment apparatus of claim 2, wherein the drying and fluidizing unit comprises:
a fluidization tube in communication with the centrifuge mechanism;
and a fluidized bed disposed at a lower side of the fluidization tube, through which the wastewater flows onto the fluidized bed, for heating the wastewater and generating the hot steam and the crystallization.
4. A wastewater treatment plant according to claim 3, wherein the heating unit comprises:
the air heater is used for generating hot air flow;
the hot air pipe is communicated with the hot air blower, the hot air pipe is arranged at the lower side of the fluidized bed, and the hot air flow flows through the hot air pipe and heats the fluidized bed.
5. The wastewater treatment apparatus of claim 4, wherein the reaction mechanism comprises:
the steam inlet pipe is arranged on the outer wall of one side of the outer shell and is communicated with the preheating space;
the steam exhaust pipe is arranged on the outer wall of the other side of the outer shell, the steam exhaust pipe is arranged opposite to the steam inlet pipe, and the steam exhaust pipe is communicated with the preheating space;
wherein the hot steam generated from the fluidized bed flows into the preheating space through the steam inlet pipe and flows out of the preheating space through the steam outlet pipe to heat the accommodating space.
6. The wastewater treatment apparatus according to claim 5, wherein the reaction mechanism comprises a wastewater outlet pipe provided at a lower end of the reaction vessel and communicating with the accommodating space.
7. The wastewater treatment apparatus of claim 6, wherein the centrifugal mechanism comprises a centrifuge, the wastewater outlet pipe being in communication with the centrifuge to enable the wastewater to flow into the centrifuge through the wastewater outlet pipe, the centrifuge being for separating the wastewater, the fluidization tube being in communication with the centrifuge to enable at least a portion of the wastewater to flow out of the centrifuge through the fluidization tube.
8. The wastewater treatment apparatus according to claim 7, wherein the reaction mechanism comprises a reaction cover plate, the reaction cover plate is arranged at the upper end of the reaction kettle in a covering manner, and at least one exhaust port is formed on the reaction cover plate.
9. The wastewater treatment apparatus of claim 8, wherein the reaction mechanism comprises a wastewater inlet pipe disposed on the reaction cover plate and extending into the accommodation space, the wastewater inlet pipe being in communication with the accommodation space, the wastewater flowing into the accommodation space through the wastewater inlet pipe.
10. The wastewater treatment apparatus of claim 9, wherein the reaction mechanism further comprises a waste agitator disposed on the reaction plate and extending into the receiving space, the waste agitator being configured to agitate the wastewater in the receiving space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223598869.XU CN219194568U (en) | 2022-12-30 | 2022-12-30 | Waste water treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223598869.XU CN219194568U (en) | 2022-12-30 | 2022-12-30 | Waste water treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219194568U true CN219194568U (en) | 2023-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223598869.XU Active CN219194568U (en) | 2022-12-30 | 2022-12-30 | Waste water treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219194568U (en) |
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