Wire mesh demister

Abstract

The utility model belongs to the technical field of wire mesh demisters, and discloses a wire mesh demister. The main technical characteristics are as follows: the net comprises a net piece formed by weaving corrosion-resistant silk threads and a net piece fixing mechanism, each silk thread comprises a non-metal material outer layer, and a metal wire inner core is arranged in each non-metal material outer layer. The non-metal material outer layer on the outer side of the metal wire inner core plays a role in protecting the metal wire inner core, corrosion of corrosive sewage such as strong alkali or strong acid to the metal wire inner core is avoided, more importantly, the metal wire inner core has certain anti-bending performance and supporting performance, and therefore a certain distance is kept between every two adjacent meshes all the time, and the service life of the metal wire inner core is prolonged. The phenomenon that pure non-metal wires are easily accumulated under the action of water flow impact or self weight is avoided, the permeability is improved, and the defoaming effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire mesh demisters, and particularly relates to a wire mesh demister. Background Art

[0002] Wire mesh demisters are more and more widely used in fields such as sewage treatment. After the gas-liquid mixture with foam passes through the demister, when the foam passes through the mesh of the wire mesh demister, the outer side of the foam is punctured or squeezed by the filaments of the mesh. The currently used wire mesh demisters mainly include the following three types:

[0003] First, a wire mesh demister made of metal wire mesh. The demister includes a mesh made of metal filaments and a mesh fixing mechanism. Since the corrosion resistance of the metal wire mesh is poor, the service life of the wire mesh demister is short, the demisting cost is increased, and the rusted metal wire mesh is likely to cause poor permeability of the wire mesh demister, reducing the demisting efficiency, and it is also easy to further pollute the water quality.

[0004] Second, a wire mesh demister made of non-metal wire mesh of plastic or polytetrafluoroethylene material with good corrosion resistance. The demister includes a mesh made of non-metal filaments and a mesh fixing mechanism. Although the corrosion resistance is solved and the service life of the wire mesh demister is extended. However, the non-metal filaments have good extensibility and poor support strength. During use, under the action of external forces such as water flow stamping, the non-metal mesh is likely to form a pile, reducing the distance between the mesh holes of the wire mesh demister, with poor permeability and greatly reduced demisting effect, and more materials are used, increasing the material cost of the wire mesh demister.

[0005] Third, a metal support is used or a mixture of metal filaments and non-metal filaments is woven. The metal support or the mixed metal filaments play a supporting role for the non-metal wire mesh. Under the action of external forces such as water flow stamping, the mesh is not likely to form a pile, and the permeability basically does not change. However, the corrosion resistance of the metal support or the mixed metal filaments is poor, so the service life of the whole wire mesh demister is shortened. Summary of the Utility Model

[0006] The technical problem to be solved by the utility model is to provide a wire mesh demister with a long service life, good permeability and good demisting effect.

[0007] To solve the above technical problem, the technical solution adopted by the wire mesh demister of the utility model is: it includes a mesh made of corrosion-resistant filaments and a mesh fixing mechanism. The filaments include an outer layer of non-metal material, and a metal wire core is arranged inside the outer layer of non-metal material.

[0008] Its additional technical features are:

[0009] The outer layer of non-metal material is polytetrafluoroethylene material;

[0010] The wire mesh is wavy;

[0011] The outer surface of the outer layer of the non-metallic material has concave and convex patterns.

[0012] Compared with the prior art, the wire mesh demister provided by the present utility model has the following advantages:

[0013] First, since it includes a wire mesh woven from corrosion-resistant filaments and a wire mesh fixing mechanism, the filaments include an outer layer of non-metallic material, and a metal wire inner core is arranged inside the outer layer of non-metallic material. The outer layer of non-metallic material outside the metal wire inner core not only protects the metal wire inner core, avoiding corrosion of the metal wire inner core by corrosive sewage such as strong alkali or strong acid, but more importantly, the metal wire inner core has certain anti-bending performance and supporting performance. In this way, a certain distance is always maintained between adjacent wire meshes, avoiding the easy accumulation of pure non-metallic wires under the action of water flow impact or their own weight, increasing the permeability, and having a better defoaming effect. Second, the outer layer of non-metallic material is made of polytetrafluoroethylene material; the polytetrafluoroethylene material forms a polytetrafluoroethylene film on the surface. The surface of the polytetrafluoroethylene film is smooth and has non-sticking properties. Microorganisms or other dirt are not easily attached to the surface of the polytetrafluoroethylene film, and the surface is not easily fouled. Moreover, the polytetrafluoroethylene film has good corrosion resistance and a long service life, and can also prevent the metal mesh from contacting the air, improving the corrosion resistance of the metal wire inner core; Third, since the wire mesh is wavy, concave ribs and convex ribs are formed between the wire meshes. A metal wire inner core is arranged inside the outer layer of non-metallic material, and the metal wire inner core has good supporting ability, so the wire mesh has stronger anti-crease ability, and adjacent wire meshes are not easily too close to the ground, increasing the permeability of the wire mesh; Fourth, since the outer surface of the outer layer of non-metallic material has concave and convex patterns, the friction on the outer surface of the outer layer of non-metallic material becomes larger. When the foam goes from one side of the wire mesh to the other side, the concave and convex patterns on the surface can pierce the foam, and the foam also breaks due to the large friction, further improving the defoaming effect. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the wire mesh demister of the present utility model;

[0015] Figure 2 It is a cross-sectional view of the wire mesh filaments of the wire mesh demister;

[0016] Figure 3 It is Figure 2 The A-A cross-sectional view of

[0017] Figure 4 It is a schematic structural diagram of the pressed wavy wire mesh. Detailed Embodiments

[0018] The following further elaborates in detail on the structure and operating principle of the wire mesh demister of the present utility model in conjunction with the accompanying drawings and specific embodiments.

[0019] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the wire mesh demister of the present utility model includes a mesh sheet 2 woven from corrosion-resistant silk threads 1 and a mesh sheet fixing mechanism 3. The silk threads 1 include a non-metallic material outer layer 4, and a metal wire inner core 5 is disposed inside the non-metallic material outer layer 4. The non-metallic material outer layer 4 outside the metal wire inner core 5 not only protects the metal wire inner core 5, avoiding corrosion of the metal wire inner core 5 by corrosive sewage such as strong alkali or strong acid, but more importantly, the metal wire inner core 5 has certain anti-bending performance and support performance. In this way, a certain distance is always maintained between adjacent mesh sheets 2, avoiding the easy accumulation of pure non-metallic wires under the action of water flow impact or its own weight, increasing the permeability, and achieving better demisting effect.

[0020] The non-metallic material outer layer 4 is made of polytetrafluoroethylene material; the polytetrafluoroethylene material forms a polytetrafluoroethylene film on the surface. The surface of the polytetrafluoroethylene film is smooth and has non-sticking properties. Microorganisms or other dirt are not easily attached to the surface of the polytetrafluoroethylene film, and the surface is not easily fouled. Moreover, the polytetrafluoroethylene film has good corrosion resistance and long service life, and can also prevent the metal mesh from contacting the air, improving the corrosion resistance of the metal wire inner core.

[0021] The mesh sheet 2 is wavy, with concave ribs 6 and convex ribs 7 formed on the mesh sheet 2. A metal wire inner core is disposed inside the non-metallic material outer layer. The metal wire inner core has good support ability, the mesh sheet has stronger anti-crease ability, and it is not easy for adjacent mesh sheets to be too close to the ground, increasing the permeability of the mesh sheet.

[0022] The outer surface of the non-metallic material outer layer 4 has concave and convex patterns 8, increasing the friction on the outer surface of the non-metallic material outer layer 4. When the foam passes from one side of the wire mesh to the other side, the concave and convex patterns on the surface can pierce the foam, and the foam also breaks due to the large friction, further improving the demisting effect.

[0023] The protection scope of the present utility model is not limited to the above embodiments. As long as the structure is the same as or similar to the structure of the wire mesh demister of the present utility model, it falls within the protection scope of the present utility model.

Claims

1. A wire mesh demister, comprising a mesh woven from corrosion-resistant wires and a mesh fixing mechanism, characterized in that: The wire comprises an outer layer of non-metallic material, and a metal wire inner core is arranged inside the outer layer of non-metallic material.

2. The wire mesh demister according to claim 1, characterized in that: The outer layer of the non-metallic material is polytetrafluoroethylene material.

3. The wire mesh demister according to claim 1, characterized in that: The mesh is wavy.

4. The wire mesh demister according to claim 1, 2 or 3, characterized in that: The outer surface of the outer layer of the non-metallic material is provided with a concave-convex pattern.

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