CN121405196A - An oil-water separation device for treating oily wastewater from precision machining. - Google Patents
An oil-water separation device for treating oily wastewater from precision machining.Info
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- CN121405196A CN121405196A CN202511764869.8A CN202511764869A CN121405196A CN 121405196 A CN121405196 A CN 121405196A CN 202511764869 A CN202511764869 A CN 202511764869A CN 121405196 A CN121405196 A CN 121405196A
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Abstract
本发明涉及废水处理技术领域，尤其涉及一种处理精密加工含油废水的油水分离装置，包括容器体、设置于容器体的进液组件、与进液组件配合使用的集油组件以及设置于容器体的出液组件与排污组件，进液组件用于将含油废水高速灌注入容器体内并使含油废水沿容器体的内壁流动旋转而产生离心力，以使在离心力场中的含油废水将密度不同的油类物质与液体进行分离处理，集油组件用于收集经过分离处理的油类物质，出液组件用于输出经过分离处理的液体，排污组件用于排放在经过分离处理的液体中所沉降聚集的固体。本发明采用圆形塔式结构设计，集进液、出液、集油、排污等处理于一身，达到高效的油水分离目的，具有截留效率高、占地面积小、出液效果好等优点。
This invention relates to the field of wastewater treatment technology, and more particularly to an oil-water separation device for treating oily wastewater from precision machining. The device includes a container body, an inlet assembly disposed within the container body, an oil collection assembly used in conjunction with the inlet assembly, and an outlet assembly and a sludge discharge assembly disposed within the container body. The inlet assembly injects the oily wastewater into the container body at high speed, causing the wastewater to flow and rotate along the inner wall of the container body, generating centrifugal force. This centrifugal force field separates oily substances of different densities from the liquid. The oil collection assembly collects the separated oily substances. The outlet assembly outputs the separated liquid. The sludge discharge assembly discharges the solids that have settled and accumulated in the separated liquid. This invention adopts a circular tower structure design, integrating inlet, outlet, oil collection, and sludge discharge into one unit, achieving highly efficient oil-water separation. It has advantages such as high retention efficiency, small footprint, and good liquid output.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to an oil-water separation device for treating precision machining oily wastewater.
Background
The precision machining is based on the synergistic effect of a high-precision machine tool and a fine cutter, and the surface material layer of a workpiece is removed through a very small cutting amount (about 1 micron), so that the workpiece meets the machining requirements of very high precision and ultra-high quality in the aspects of size, geometric shape, surface performance and the like, and particularly relates to the electronic information industry, including CNC precision machining, stamping, polishing, flat grinding, grinding and other procedures of parts such as a metal middle frame, a shell, a camera module, a connector, a shielding cover and the like of a mobile phone. Therefore, the oily wastewater needs to be treated properly through oil-separating type oil-water separating equipment, the existing oil-separating type oil-water separating equipment is mainly divided into a horizontal flow type oil separating tank and an inclined plate (pipe) type oil-water separating pretreatment facility by utilizing the gravity effect, and the core principle is that the density difference is utilized, the oily wastewater horizontally flows through a rectangular tank body at an extremely low flow speed to provide sufficient time for oil, water and solid three-phase separation, free oil drops with smaller density naturally float up to the water surface to be gathered, are scraped and recovered by a rotatable oil collecting pipe, and suspended solids with larger density are settled into a mud collecting hopper at the bottom of the tank and need to be discharged periodically, but the separation efficiency of the horizontal flow type oil separating tank is relatively low, and the floating oil and the dispersed oil with the particle size of more than 150 microns can be removed only generally, so that the oil with smaller particle size is ineffective, and the oil with larger occupied area and long hydraulic retention time are required because the oil is mainly due to natural sedimentation. The inclined plate (tube) oil separation tank is used for improving the processing capacity according to the shallow tank theory, namely, a dense inclined parallel plate or a honeycomb inclined tube group is additionally arranged in the tank, so that the floating distance of oil drops is greatly shortened, the oil drops can be quickly converged into large oil drops and removed, and usually, the floating oil and the dispersed oil with the particle sizes of 60-80 um can be removed, and the oil with smaller particle sizes is invalid, so that the occupied area can be greatly saved, the complex structural arrangement is easier to generate a blocking condition, the pretreatment (such as a grid) requirement is extremely high, and the maintenance and cleaning are inconvenient.
Disclosure of Invention
In order to overcome the defects and the shortcomings in the prior art, the invention aims to provide an oil-water separation device for treating precision-machining oily wastewater.
In order to achieve the above object, the oil-water separation device for treating precision-machined oily wastewater comprises a container body, a liquid inlet component arranged on the container body, an oil collecting component matched with the liquid inlet component for use, and a liquid outlet component and a sewage discharging component arranged on the container body, wherein the liquid inlet component is used for pouring the oily wastewater into the container body at a high speed and enabling the oily wastewater to flow and rotate along the inner wall of the container body to generate centrifugal force, so that oily wastewater in a centrifugal force field separates oily substances with different densities from liquid, the oil collecting component is used for collecting the separated oily substances, the liquid outlet component is used for outputting the separated liquid, and the sewage discharging component is used for discharging solids settled and accumulated in the separated liquid.
Preferably, the feed liquor subassembly includes the feed liquor chamber, sets up in the spray tube in feed liquor chamber and with feed liquor pipe and the back flow of feed liquor chamber intercommunication, the spray tube is provided with a plurality ofly, and a plurality of spray tubes are arranged along the direction of height interval in feed liquor chamber, and the spout end of a plurality of spray tubes sets up with the inner wall of the container body relatively, the feed liquor pipe is located the top of back flow, feed liquor pipe and back flow all protrude outside the container body.
Preferably, the liquid inlet cavity is a triangular prism and is arranged on the inner wall of the container body, the liquid inlet pipe and the return pipe are arranged on the outer side of the liquid inlet cavity, and the spray pipes are arranged on the inner side of the liquid inlet cavity.
Preferably, the oil collecting assembly comprises an oil collecting cavity, a scum baffle arranged in the oil collecting cavity and an oil discharge pipe communicated with the oil collecting cavity, wherein the scum baffle is in sliding connection with the oil collecting cavity, and the oil discharge pipe protrudes out of the oil collecting cavity.
Preferably, the oil collecting cavity is triangular prism and is arranged on the inner wall of the container body, the top of the oil collecting cavity is provided with an oil collecting port, and the oil collecting cavity is communicated with the container body through the oil collecting port.
Preferably, the liquid outlet component comprises a liquid outlet cavity, a weir flow plate arranged in the liquid outlet cavity, a baffle arranged on the weir flow plate in a detachable mode and a liquid outlet pipe communicated with the liquid outlet cavity, a mounting screw is connected between the baffle and the weir flow plate, the liquid outlet pipe protrudes out of the liquid outlet cavity, and the liquid outlet cavity is communicated with the container body.
Preferably, the blowdown assembly comprises a sewage collecting hopper and a blowdown pipe arranged on the sewage collecting hopper, and the section of the sewage collecting hopper is in a conical structure.
Preferably, the cross section of the container body is in a cylindrical structure, the container body and the dirt collecting hopper are integrally formed, and the container body and the dirt collecting hopper are surrounded to form a closed combined geometric body.
Preferably, the container body and the dirt collecting hopper are made of stainless steel materials.
Preferably, the container body is provided with a stand, the stand is sleeved on the outer side of the container body, the stand is provided with support columns, the support columns are three, the three support columns are arranged around the circumference of the stand, and connecting lines of the three support columns are formed into triangles.
The invention has the beneficial effects that the circular tower type structural design is adopted, the structure is compact and reasonable, the treatment of liquid inlet, liquid outlet, oil collection, pollution discharge and the like is integrated, the purpose of high-efficiency oil-water separation is achieved, the oil particles with the particle size of 10-30 um are effectively removed, and the invention has the advantages of high interception efficiency, small occupied area, good liquid outlet effect and the like.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic top view of the present invention.
The reference numerals include:
1-container body
2-Liquid inlet component 21-liquid inlet cavity 22-spray pipe
23-Liquid inlet pipe 24-return pipe
3-Oil collecting assembly 31-oil collecting cavity 32-scum baffle plate
33-Oil drain pipe 34-oil collecting port
4-Liquid outlet component 41-liquid outlet cavity 42-weir flow plate
43-Baffle 44-liquid outlet pipe 45-mounting screw
5-Blowdown assembly 51-dirt collecting bucket 52-blowdown pipe
6-Stand 61-support column.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 2, the oil-water separation device for treating precision-machined oily wastewater of the invention comprises a container body 1, a liquid inlet component 2 arranged on the container body 1, an oil collecting component 3 matched with the liquid inlet component 2 for use, and a liquid outlet component 4 and a sewage discharging component 5 arranged on the container body 1, wherein the liquid inlet component 2 is used for pouring the oily wastewater into the container body 1 at a high speed and enabling the oily wastewater to flow and rotate along the inner wall of the container body 1 to generate centrifugal force, so that the oily wastewater in a centrifugal force field separates oily substances with different densities from liquid, the oil collecting component 3 is used for collecting the separated oily substances, the liquid outlet component 4 is used for outputting the separated liquid, and the sewage discharging component 5 is used for discharging solids settled and accumulated in the separated liquid.
During operation, oily wastewater is tangentially input into the container body 1 through the liquid inlet component 2, the oily wastewater is filled into the container body 1 at a high speed, the oily wastewater flows and rotates along the inner wall of the container body 1 to generate centrifugal force, oil substances with different densities in the oily wastewater are accelerated to separate from the liquid in a layered manner by utilizing the centrifugal driving separation principle, floating oil with higher densities, dispersed oil and the like are thrown to the inner wall of the container body 1, and rise to the top wall of the container body 1 along the inner wall of the container body 1 after mutually collision aggregation, finally are collected to the oil collecting component 3, the separated oil substances are collected through the oil collecting component 3, the liquid with lower density falls to the liquid outlet component 4 under the action of gravity, the separated liquid is output through the liquid outlet component 4, and solid foreign matters mixed in the liquid sink and aggregate at the bottom of the container body 1 under the action of natural sedimentation. The application adopts a circular tower structure design, has compact and reasonable structure, integrates the treatments of liquid inlet, liquid outlet, oil collection, pollution discharge and the like, achieves the purpose of high-efficiency oil-water separation, effectively removes oil particles with the particle size of 10um to 30um, and has the advantages of high interception efficiency, small occupied area, good liquid outlet effect and the like.
The liquid inlet assembly 2 of this embodiment includes the feed liquor chamber 21, sets up in the spray tube 22 of feed liquor chamber 21 and with feed liquor pipe 23 and the back flow 24 of feed liquor chamber 21 intercommunication, spray tube 22 is provided with a plurality of, and a plurality of spray tubes 22 are arranged along the direction of height interval of feed liquor chamber 21, and the spout end of a plurality of spray tubes 22 sets up with the inner wall of container body 1 relatively, feed liquor pipe 23 is located the top of back flow 24, feed liquor pipe 23 and back flow 24 all protrude outside the container body 1. Specifically, the liquid inlet pipe 23 and the return pipe 24 are disposed on the outer wall of the liquid inlet cavity 21, the liquid inlet pipe 23 is disposed above the return pipe 24, the plurality of spray pipes 22 are disposed on the inner wall of the liquid inlet cavity 21, the plurality of spray pipes 22 are arranged at intervals along the height direction of the liquid inlet cavity 21, the oily wastewater is injected into the liquid inlet cavity 21 through the liquid inlet pipe 23, meanwhile, the water outlet return pump is connected with the return pipe 24, the oily wastewater is also injected into the liquid inlet cavity 21 through the return pipe 24, and the two oily wastewater flows into the liquid inlet cavity 21 and then is sprayed out at a high speed through the plurality of spray pipes 22, so that the total water inlet flow rate of the oily wastewater is improved, and the oily wastewater with a high flow rate flows and rotates along the inner wall of the container body 1.
The liquid inlet cavity 21 of the present embodiment is a triangular prism and is disposed on the inner wall of the container body 1, the liquid inlet pipe 23 and the return pipe 24 are disposed on the outer side of the liquid inlet cavity 21, and the plurality of nozzles 22 are disposed on the inner side of the liquid inlet cavity 21. Specifically, be the feed liquor chamber 21 setting of triangular prism structure at the inner wall of container body 1, triangular prism structure not only the structural stability is strong, atress evenly distributed, is difficult for warp crooked when bearing pressure and impact, has good resistance to compression, shock resistance's performance, and manufacturing processing is simple and convenient moreover, reduces manufacturing cost and processing degree of difficulty, realizes better that feed liquor pipe 23 and back flow 24 set up in the outside of feed liquor chamber 21 to and a plurality of spray tubes 22 set up in the inboard of feed liquor chamber 21, compact structure and reasonable in design.
The oil collecting assembly 3 of the present embodiment includes an oil collecting chamber 31, a scum baffle 32 disposed in the oil collecting chamber 31, and an oil drain pipe 33 communicating with the oil collecting chamber 31, wherein the scum baffle 32 is slidably connected with the oil collecting chamber 31, and the oil drain pipe 33 protrudes out of the oil collecting chamber 31. Specifically, the dross baffle 32 is designed for a dross baffle 32 capable of being adjusted in a sliding manner in the prior art, the dross baffle 32 is connected to the oil collecting cavity 31 in a sliding manner, the dross baffle 32 is made of hollow sealed stainless steel, the automatic lifting function along with the liquid level is realized through a gravity balance system, the large-volume dross is blocked by the extending end, the suspended oil film is blocked by the extending end, greasy dirt, solid floaters and the like are prevented from entering a subsequent processing unit mainly through a physical blocking manner, and solid-liquid separation is better realized.
The oil collecting cavity 31 of the embodiment is in a triangular prism shape and is arranged on the inner wall of the container body 1, an oil collecting port 34 is arranged at the top of the oil collecting cavity 31, and the oil collecting cavity 31 is communicated with the container body 1 through the oil collecting port 34. Specifically, the oil collecting cavity 31 with the triangular prism structure is arranged on the inner wall of the container body 1, the triangular prism structure is strong in structural stability and even in stress distribution, is not easy to deform and bend when bearing pressure and impact, provides better structural stability and bearing performance, has fewer structural nodes, is simple in component shape, is easier to assemble and weld on site, is reliable in quality control, and is communicated with the container body 1 through the oil collecting port 34, so that oil substances subjected to separation treatment are placed in the oil collecting cavity 31 through the oil collecting port 34.
The liquid outlet assembly 4 of this embodiment includes a liquid outlet cavity 41, a weir flow plate 42 arranged in the liquid outlet cavity 41, a baffle plate 43 detachably arranged on the weir flow plate 42, and a liquid outlet pipe 44 communicated with the liquid outlet cavity 41, wherein a mounting screw 45 is connected between the baffle plate 43 and the weir flow plate 42, the liquid outlet pipe 44 protrudes out of the liquid outlet cavity 41, and the liquid outlet cavity 41 is communicated with the container body 1. Specifically, the drain pipe 44 is L type, and drain pipe 44 is connected with external water pump, outwards takes out through external water pump with the liquid that is processed through the separation, because separation blade 43 is connected with weir flow plate 42 through mounting screw 45, through the high position of adjusting separation blade 43 relative weir flow plate 42, the position of separation blade 43 after the fixed regulation height of reuse mounting screw 45, and then adjusts the liquid velocity of flow that flows at liquid cavity 41, speed governing operation is simple and convenient.
The sewage disposal assembly 5 of this embodiment includes a sewage collection bucket 51 and a sewage disposal pipe 52 disposed in the sewage collection bucket 51, and the cross-sectional shape of the sewage collection bucket 51 is a tapered structure. Specifically, the bottom of the container body 1 is provided with a sewage collecting hopper 51, the cross section of the sewage collecting hopper 51 is in a conical structure, and the sewage collecting hopper is suitable for intercepting and separating solid matters and is convenient for periodic sewage discharge through a sewage discharge pipe 52.
The cross section of the container body 1 of this embodiment is cylindrical, the container body 1 and the dirt collecting bucket 51 are integrally formed, and the container body 1 and the dirt collecting bucket 51 are enclosed to form a closed combined geometric body. Specifically, the cross section of the container body 1 is in a cylindrical structure, the cross section of the dirt collecting hopper 51 is in a conical structure, the container body 1 and the dirt collecting hopper 51 are enclosed to form a closed combined geometric body, and the treatment of liquid inlet, liquid outlet, oil collecting, sewage discharging and the like is efficiently completed, so that the influence of external interference is avoided.
The container body 1 and the dirt collecting bucket 51 of the present embodiment are made of stainless steel. Specifically, the stainless steel materials comprise 304 stainless steel and 316L stainless steel, the 304 stainless steel forms a compact chromium oxide film in the atmosphere, fresh water and most acid-base environments, oxidation resistance, pitting corrosion resistance and crevice corrosion resistance are realized, the carbon content is low (304L) so that the stainless steel is not easy to generate intergranular corrosion after welding, the processes of hot working, cold working, stamping, bending and the like are easy, the stainless steel has higher tensile strength and impact toughness, can keep good plasticity at low temperature, is suitable for structural members and pressure-bearing members, still keeps good mechanical property and oxidation resistance below 800 ℃, has smooth and pore-free surfaces, prevents bacteria from breeding, is easy to clean and sterilize, the 316L stainless steel is added with 2 to 3 percent of Mo (molybdenum), the pitting corrosion resistance and crevice corrosion resistance of high chloride ion mediums such as seawater, salt fog, acid-base and the like are remarkably improved, the critical pitting corrosion temperature is about 50 ℃ higher than that of 304, the low carbon (< 0.03%) is avoided to generate intergranular corrosion after welding, the welding performance is good, the welding performance is easy to realize after heat treatment, the elongation is relatively high, the hardness is relatively high, the corrosion resistance is low, the corrosion resistance is easy to form, the corrosion resistance is easy to cause the corrosion resistance is suitable for manufacturing a part, and the cold-welded part has a complex structure, and is suitable for being manufactured and a service life.
The container body 1 of this embodiment is provided with the grudging post 6, the grudging post 6 cover is established in the outside of container body 1, the grudging post 6 is provided with support column 61, support column 61 is provided with three, and three support column 61 establishes around the circumference of grudging post 6, the line shaping of three support column 61 is triangle-shaped. Specifically, three support columns 61 are arranged around the circumference of the stand 6, and the connecting lines of the three support columns 61 are shaped like triangles, so that under the same bearing condition, the triangular structure is often less in material consumption than the rectangular or other shapes, and is easier to assemble and process, so that the stand 6 is high in structural stability and is not easy to deform.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. The oil-water separation device for treating the precision machining oily wastewater is characterized by comprising a container body, a liquid inlet component arranged on the container body, an oil collecting component matched with the liquid inlet component for use, and a liquid outlet component and a sewage discharging component arranged on the container body, wherein the liquid inlet component is used for pouring the oily wastewater into the container body at a high speed and enabling the oily wastewater to flow and rotate along the inner wall of the container body to generate centrifugal force, so that the oily wastewater in a centrifugal force field separates oily substances with different densities from liquid, the oil collecting component is used for collecting the separated oily substances, the liquid outlet component is used for outputting the separated liquid, and the sewage discharging component is used for discharging solids settled and accumulated in the separated liquid.
2. The oil-water separation device for treating precision machining oily wastewater according to claim 1, wherein the liquid inlet assembly comprises a liquid inlet cavity, spray pipes arranged in the liquid inlet cavity, and liquid inlet pipes and return pipes which are communicated with the liquid inlet cavity, a plurality of spray pipes are arranged at intervals along the height direction of the liquid inlet cavity, the spray ends of the spray pipes are opposite to the inner wall of the container body, the liquid inlet pipes are positioned above the return pipes, and the liquid inlet pipes and the return pipes protrude out of the container body.
3. The oil-water separation device for treating precision-machined oil-containing wastewater according to claim 2, wherein the liquid inlet cavity is triangular prism and is arranged on the inner wall of the container body, the liquid inlet pipe and the return pipe are arranged on the outer side of the liquid inlet cavity, and the spray pipes are arranged on the inner side of the liquid inlet cavity.
4. The oil-water separation device for treating precision-machined oil-containing wastewater according to claim 1, wherein the oil collecting assembly comprises an oil collecting cavity, a scum baffle arranged in the oil collecting cavity and an oil discharge pipe communicated with the oil collecting cavity, the scum baffle is in sliding connection with the oil collecting cavity, and the oil discharge pipe protrudes out of the oil collecting cavity.
5. The oil-water separation device for treating precision-machined oil-containing wastewater according to claim 4, wherein the oil collecting cavity is triangular and arranged on the inner wall of the container body, an oil collecting port is arranged at the top of the oil collecting cavity, and the oil collecting cavity is communicated with the container body through the oil collecting port.
6. The oil-water separation device for treating precision machining oily wastewater according to claim 1, wherein the liquid outlet component comprises a liquid outlet cavity, a weir flow plate arranged in the liquid outlet cavity, a baffle plate detachably arranged on the weir flow plate and a liquid outlet pipe communicated with the liquid outlet cavity, a mounting screw is connected between the baffle plate and the weir flow plate, the liquid outlet pipe protrudes out of the liquid outlet cavity, and the liquid outlet cavity is communicated with the container body.
7. The oil-water separation device for treating precision-machined oil-containing wastewater according to claim 1, wherein the sewage disposal assembly comprises a sewage collection bucket and a sewage disposal pipe arranged on the sewage collection bucket, and the cross section of the sewage collection bucket is in a conical structure.
8. The oil-water separation device for treating precision-machined oil-containing wastewater according to claim 7, wherein the cross section of the container body is of a cylindrical structure, the container body and the sewage collecting bucket are integrally formed, and the container body and the sewage collecting bucket are surrounded to form a closed combined geometric body.
9. The oil-water separation device for treating precision-machined oil-containing wastewater according to claim 8, wherein the container body and the sewage collecting hopper are made of stainless steel.
10. The oil-water separation device for treating precision machining oily wastewater according to claim 1, wherein the container body is provided with a stand, the stand is sleeved on the outer side of the container body, the stand is provided with support columns, three support columns are arranged around the circumference of the stand, and connecting lines of the three support columns are formed into a triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511764869.8A CN121405196A (en) | 2025-11-27 | 2025-11-27 | An oil-water separation device for treating oily wastewater from precision machining. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511764869.8A CN121405196A (en) | 2025-11-27 | 2025-11-27 | An oil-water separation device for treating oily wastewater from precision machining. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN121405196A true CN121405196A (en) | 2026-01-27 |
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ID=98489496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202511764869.8A Pending CN121405196A (en) | 2025-11-27 | 2025-11-27 | An oil-water separation device for treating oily wastewater from precision machining. |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN121405196A (en) |
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2025
- 2025-11-27 CN CN202511764869.8A patent/CN121405196A/en active Pending
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