Metal filtering membrane

Abstract

The utility model discloses a metal filter membrane which comprises a filter screen, a metal membrane is arranged on the first surface of the filter screen, and a supporting piece is arranged on the second surface of the filter screen; the supporting piece comprises a frame, a plurality of straight inner supporting rods and a plurality of bent inner supporting rods, the frame is formed by combining two first outer supports and two second outer supports, the frame is fixedly connected with the periphery of the filter screen, the straight inner supporting rods are evenly distributed in the frame, and the bent inner supporting rods are evenly distributed in the frame. The straight inner supporting rods are parallel to the two second outer supports, the two ends of each straight inner supporting rod are fixedly connected with the two first outer supports, the two ends of each bent inner supporting rod are fixedly connected with the two second outer supports, and the middles of the bent inner supporting rods are fixedly connected with the straight inner supporting rods. The metal film is arranged to be matched with the filter screen, impurities and solid particles can be effectively filtered, the supporting force is high, and deformation is small.

Description

Technical Field

[0001] This utility model relates to metal filter membranes, specifically a type of metal filter membrane. Background Technology

[0002] In the machinery manufacturing industry, metal cutting processes require the use of large amounts of emulsion for lubrication and cooling. After a period of use, this emulsion will turn into wastewater and be discharged. The main challenges in treating this wastewater are:

[0003] 1) It contains engine oil and surfactants, and is formulated by diluting emulsified oil with water as needed and then adding emulsifiers.

[0004] 2) The COD and BOD in the wastewater can be as high as 5,000–150,000 mg / L and 1,500–30,000 mg / L, respectively, with high concentrations and large fluctuations in concentration range.

[0005] 3) The composition is extremely complex, containing a variety of additives such as extreme pressure additives, rust inhibitors, mildew inhibitors, and antifoaming additives.

[0006] The following methods are currently used for the treatment of wastewater containing emulsified oil:

[0007] 1. Biological Treatment Tank Method: Wastewater containing emulsified oil is placed in a biological treatment tank, and appropriate nutrients are added. Microorganisms then degrade and transform the pollutants. This method offers good treatment results and relatively low equipment investment and operating costs, but it requires a large area.

[0008] 2. Air flotation-biological treatment method: The air flotation-biological treatment method, also known as the FBBR method (Fluidized Bed Biofilm Reactor), combines air flotation and biological methods to effectively remove difficult-to-treat organic matter, heavy metals and other substances from wastewater containing emulsified oil. However, the air flotation process requires the addition of chemicals.

[0009] 3. Biological contact oxidation method: The biological contact oxidation method treats wastewater by oxidizing it through a biological contactor. It can effectively remove organic matter, nitrogen, phosphorus and other substances from wastewater and can achieve good treatment results, but the efficiency is low.

[0010] In summary, the treatment of emulsified oil wastewater should consider factors such as the pollution level, output, and economic costs to select a suitable treatment method, thereby achieving the effects of wastewater purification, environmental protection, and energy conservation.

[0011] Currently, some manufacturers use filter screens to filter wastewater containing emulsified oil, but the filtration effect is not good. Filter screens with small mesh counts have poor filtration effect, while filter screens with large mesh counts are prone to deformation due to the large weight of the liquid they bear. Utility Model Content

[0012] To address the shortcomings of the prior art, this invention provides a metal filter membrane. This invention combines a metal membrane with a filter screen to effectively filter impurities and solid particles, providing strong support and minimal deformation.

[0013] To achieve the above technical objectives, the present invention adopts the following technical solution: a metal filter membrane, comprising a filter screen, wherein a metal membrane is provided on the first surface of the filter screen, and a support member is provided on the second surface of the filter screen;

[0014] The support component includes a frame composed of two first outer supports and two second outer supports, as well as multiple straight inner support rods and multiple curved inner support rods. The frame is fixedly connected to the perimeter of the filter screen. The multiple straight inner support rods are evenly distributed in the frame and are parallel to the two second outer supports. The two ends of the multiple straight inner support rods are fixedly connected to the two first outer supports. The two ends of the multiple curved inner support rods are fixedly connected to the two second outer supports, and the middle part of the multiple curved inner support rods is fixedly connected to the multiple straight inner support rods.

[0015] The metal membrane is formed by a CNC arc rolling machine on the first surface of the filter screen; the metal membrane and the filter screen are integrally formed.

[0016] The inner support rod of the bend is composed of multiple stainless steel plates of equal length fixedly connected together, with obtuse angles between the stainless steel plates, and the connection between adjacent stainless steel plates is located in the second outer support fixed connection.

[0017] In summary, this utility model achieves the following technical effects:

[0018] This invention forms a metal film on the filter screen, which can effectively filter liquids;

[0019] This utility model incorporates a support component to form a strong support with minimal deformation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a metal filter membrane provided in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the support component;

[0022] Figure 3 It is another form of filter. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] Example:

[0030] like Figure 1 As shown, a metal filter membrane includes a filter screen 1, a metal membrane 2 on the first surface of the filter screen 1, and a support member 3 on the second surface of the filter screen 1.

[0031] The metal membrane 2 is formed by a CNC arc rolling machine on the first surface of the filter screen 1; the metal membrane 2 is integrally formed with the filter screen 1.

[0032] like Figure 2 As shown, the support member 3 includes a frame composed of two first outer supports 31 and two second outer supports 32, as well as multiple straight inner support rods 33 and multiple curved inner support rods 34. The frame is fixedly connected to the perimeter of the filter screen 1. The multiple straight inner support rods 33 are evenly distributed in the frame. The multiple straight inner support rods 33 are parallel to the two second outer supports 32. The two ends of the multiple straight inner support rods 33 are fixedly connected to the two first outer supports 31. The two ends of the multiple curved inner support rods 34 are fixedly connected to the two second outer supports 32. The middle part of the multiple curved inner support rods 34 is fixedly connected to the multiple straight inner support rods 33.

[0033] The inner support rod 34 is composed of multiple stainless steel plates of equal length fixedly connected together, with the stainless steel plates connected at obtuse angles. The connection between adjacent stainless steel plates is fixedly connected to the second outer support 32. The inner support rod 34 is bent at an obtuse angle to enhance the supporting strength.

[0034] The inner support rods, the inner support rods of the bends, and the frame are all made of stainless steel. The frame and the filter screen can be connected by welding, bolts, or other methods. The inner support rods, the inner support rods of the bends, and the frame can be connected by welding or bolts.

[0035] The thickness of the inner support rod and the inner curved support rod are equal. The thickness of the two first outer supports 31 and the two second outer supports 32 are equal. The sum of the thicknesses of the inner support rod and the inner curved support rod is equal to the thickness of the frame. Thus, the thickness of the entire support component is the thickness of the frame, preventing the inner support rod from protruding and affecting its use and installation.

[0036] like Figure 3 As shown, the filter screen is rolled into a roller, with the support located on the inner wall. The position and number of the support rods are adjusted accordingly.

[0037] Based on the water quality characteristics of this emulsified wastewater, this invention adopts a metal membrane treatment technology solution and provides a metal membrane for integrated wastewater treatment equipment to treat the wastewater of this project. The treated effluent can be further reused for internal production water use. Metal membrane wastewater treatment is a highly efficient and sustainable wastewater treatment technology. This technology utilizes the chemical reaction generated by the metal membrane in the water to convert pollutants such as organic matter and heavy metals in the wastewater into harmless substances, while also filtering out impurities and microorganisms, thus purifying the water quality. The principle of metal membrane wastewater treatment is to utilize the high surface area, high activity, and high stability of the metal membrane to form various chemical reactions in the water, converting pollutants into harmless substances. The preparation of the metal membrane uses nanotechnology and composite technology to prepare highly efficient and highly stable metal membranes. The surface of the metal membrane can also adsorb pollutants such as organic matter and heavy metals in the water, reducing the concentration of pollutants in the water and ensuring that the treated water meets the standards. Compared with traditional processes, the wastewater treatment system using the metal membrane process has greater economic benefits and performance advantages.

[0038] Modular structural design results in a smaller footprint; high degree of equipment integration shortens on-site construction time; high and stable water quality with strong resistance to shock loads; reduced operating energy consumption effectively saves operating costs; high degree of automation simplifies operation and maintenance.

[0039] The metal membrane described in this invention is a water and air purification metal membrane of various precision and application, made from porous metal mesh such as stainless steel, titanium steel, and copper, processed by an electric arc roller press. The electric arc roller press is a forming device that utilizes the arc heat effect and roller pressure to induce plastic deformation on the workpiece surface, thereby forming a specific shape and size. This machine is suitable for forming different materials, such as steel and aluminum, and can meet different shape requirements, such as circular, elliptical, and triangular shapes.

[0040] The metal film described in this invention uses porous metal mesh such as stainless steel, titanium steel, and copper as the film-forming substrate. It utilizes the arc heating effect and roller pressure to generate plastic deformation on the workpiece surface, thereby forming a metal film with a smooth surface and uniform pore size distribution.

[0041] The porous metal mesh made of stainless steel, titanium steel, copper, etc., used in the metal membrane of this invention can be a filter material made from metal wire or fiber as raw material through multiple processes such as weaving, forming, and sintering; or it can be a filter material made from metal powder as raw material through processes such as compression molding and sintering.

[0042] After being subjected to arc heating and roller pressure, the surface of the metal mesh has multiple micropores and pores, which can effectively filter impurities and solid particles in liquids and gases while maintaining high airtightness; it also features high strength, corrosion resistance, high temperature resistance, and resistance to deformation.

[0043] The metal membrane described in this invention is not only used for the treatment of wastewater containing emulsified oil, but also, due to its high strength, corrosion resistance, high temperature resistance, and non-clogging properties, can be used to filter various media such as liquids, gases, and solid particles. Furthermore, the metal membrane with a sintered metal powder mesh as its base can also be applied to catalytic reactions, chemical separation, energy conservation, and emission reduction, thanks to its unique microporous structure.

[0044] The electric arc rolling machine described in this invention is a metal processing device used for rolling metal mesh surfaces. The power of the electric arc rolling machine refers to the amount of electrical energy or power it outputs. Higher power allows the equipment to handle metal meshes of greater thickness or diameter and achieve higher rolling speeds. Rolling pressure refers to the pressure applied by the electric arc rolling machine to the metal mesh surface; higher rolling pressure generally indicates a higher degree of surface finish that the equipment can achieve.

[0045] Example 1:

[0046] A 10mm thick, 500mm*500mm square stainless steel powder sintered porous metal mesh plate is selected and fixedly clamped in a CNC electric arc rolling machine. After setting the electric arc heat release power, rolling pressure, and rolling speed of the electric arc rolling machine, the machine tool is started to process the mesh surface of the square stainless steel powder sintered porous metal mesh plate to obtain the plate-type stainless steel metal film that meets the technical requirements.

[0047] Example 2:

[0048] A cylindrical stainless steel powder sintered porous metal mesh with an inner diameter of 50mm, an outer diameter of 100mm, and a length of 1000mm is selected and fixedly clamped in a CNC electric arc rolling machine. After setting the arc heat release power, rolling pressure, and rolling speed of the electric arc rolling machine, the machine tool is started to process the surface of the cylindrical stainless steel powder sintered porous metal mesh to obtain a cylindrical stainless steel metal film that meets the technical requirements.

[0049] Example 3:

[0050] A 5mm thick, 300mm*300mm square titanium steel powder sintered porous metal mesh plate is selected and fixedly clamped in a CNC electric arc rolling machine. After setting the electric arc heat release power, rolling pressure and rolling speed of the electric arc rolling machine, the machine tool is started to process the mesh surface of the square titanium steel powder sintered porous metal mesh plate to obtain the plate-type titanium steel metal film that meets the technical requirements.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A metal filter membrane, characterized in that: Includes a filter screen (1), the first surface of the filter screen (1) has a metal film (2), and the second surface of the filter screen (1) is provided with a support member (3); The support member (3) includes a frame composed of two first outer supports (31) and two second outer supports (32), as well as multiple straight inner support rods (33) and multiple curved inner support rods (34). The frame is fixedly connected to the periphery of the filter screen (1). The multiple straight inner support rods (33) are evenly distributed in the frame. The multiple straight inner support rods (33) are parallel to the two second outer supports (32). The two ends of the multiple straight inner support rods (33) are fixedly connected to the two first outer supports (31). The two ends of the multiple curved inner support rods (34) are fixedly connected to the two second outer supports (32). The middle part of the multiple curved inner support rods (34) is fixedly connected to the multiple straight inner support rods (33).

2. The metal filter membrane according to claim 1, characterized in that: The metal membrane (2) is formed by a CNC arc rolling machine on the first surface of the filter screen (1); the metal membrane (2) and the filter screen (1) are integrally formed.

3. The metal filter membrane according to claim 1, characterized in that: The inner support rod (34) is composed of multiple stainless steel plates of equal length fixedly connected together. The stainless steel plates are connected at an obtuse angle, and the connection between adjacent stainless steel plates is fixedly connected to the second outer support (32).

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