TWM630771U - Ceramic fiber filter tube - Google Patents

Abstract

A ceramic fiber filter tube is used to solve the problems of insufficient structural strength and shortened service life of the conventional ceramic fiber filter tube due to moisture. The system comprises: a pipe body with a plurality of pores, the pipe body has an open end and a closed end; and a waterproof strengthening layer located on the outer surface of the pipe body, the waterproof strengthening layer is mixed with a hydrophobic solution and a Hardener and formed after curing.

Description

Ceramic fiber filter tube

This work is about a ceramic fiber filter tube, especially a ceramic fiber filter tube used to filter dust and remove other harmful chemical waste gas.

Factory boilers or other machinery and equipment will generate a large amount of high, low temperature dust and other harmful chemical waste gas during the combustion process, and the waste gas usually contains substances such as PM2.5, PM1 dust, etc., in order to avoid environmental pollution. , these substances must be effectively removed. At present, the common method is that the surface of the ceramic fiber filter tube has many tiny pores. When the exhaust gas is sucked into the interior through the outside of the ceramic fiber filter tube, in addition to PM2.5 with a relatively large particle size in the exhaust gas, PM1 grade dust can also be removed It is isolated from the outer surface of the ceramic fiber filter tube, so that the ceramic fiber filter tube can filter PM2.5 and PM1 dust in the exhaust gas, and then discharge the exhaust gas that has filtered PM2.5, PM1 and other dust into the atmosphere, and then achieve filter effect.

However, the high or low temperature exhaust gas or the process of restarting the combustion equipment, or the water vapor generated by external water seepage penetrates into the surface of the ceramic fiber filter tube to generate moisture, resulting in uneven heat transfer efficiency between the wet part and the dry part of the ceramic fiber filter tube. The overall heating of the ceramic fiber filter tube is uneven. In the long run, the ceramic fiber filter tube itself is prone to cracks or broken tubes, resulting in a significant reduction in the service life of the ceramic fiber filter tube. In addition, the known material of the ceramic fiber filter tube is highly brittle. , in the process of installation, it is easy to be broken or broken due to collision.

In view of this, it is still necessary to improve the conventional ceramic fiber filter tube.

In order to solve the above problems, the purpose of the present invention is to provide a ceramic fiber filter tube, which can make the ceramic fiber filter tube uniformly heated, so as to improve the service life of the ceramic fiber filter tube.

The second objective of the present creation is to provide a ceramic fiber filter tube with high structural strength, so as to improve the service life of the ceramic fiber filter tube.

The directional or similar terms described in the full text of this creation, such as "front", "back", "left", "right", "up (top)", "down (bottom)", "inside", "outside" , "sideways", etc., mainly refer to the directions of the attached drawings, and each directional or similar terms are only used to assist the description and understanding of the various embodiments of the present creation, and are not intended to limit the present creation.

The use of the quantifier "a" or "an" for the elements and components described in the full text of this creation is only for the convenience of use and to provide the general meaning of the scope of this creation; in this creation, it should be construed as including one or at least one, and a single The concept of also includes the plural case unless it is obvious that it means otherwise.

Similar terms such as "combination", "combination" or "assembly" mentioned in the whole text of this work mainly include the types of components that can be separated without destroying the components after connection, or the components cannot be separated after being connected, which are common knowledge in this field. It can be selected according to the material of the components to be connected or the assembly requirements.

The ceramic fiber filter tube of the present invention comprises: a tube body with a plurality of pores, the tube body has an open end and a closed end; and a waterproof reinforcement layer located on the outer surface of the tube body, the waterproof reinforcement layer is It is formed by mixing a hydrophobic solution and a hardener and curing.

Accordingly, the ceramic fiber filter tube of the present invention can reduce the adsorption of water liquid through the provision of the waterproof reinforcement layer, so that the water liquid is not easy to stay on the surface of the ceramic fiber filter tube and can be quickly removed, thereby avoiding the The tube body is cracked or broken due to uneven heating caused by moisture after absorbing water vapor. In addition, the waterproof reinforcement layer can make the ceramic fiber filter tube have better strength, and can achieve the effect of prolonging the service life of the ceramic fiber filter tube.

Wherein, the pore size of each of the pores is 5-200 nm. In this way, when the exhaust gas flows from the outside of the pipe body into the interior, the PM2.5.PM1 dust in the exhaust gas can be isolated from the outer surface of the pipe body, which has the effect of better filtering efficiency.

Wherein, the thickness of the waterproof reinforcement layer is 5-20 mm. In this way, the waterproof reinforcement layer will not affect the filtering performance of the pipe body, it can prevent the pipe body from absorbing moisture and can be uniformly heated, and can improve the structural strength of the pipe body, which has a better filtering effect and prolongs the service life. effect.

Wherein, the hydrophobic solution may comprise that the hydrophobic solution comprises hexafluorosiloxane-modified nano-silicon dioxide. In this way, the waterproof reinforcement layer can have hydrophobic properties, which has the effect of making it difficult for water vapor to adhere to the surface of the ceramic fiber filter tube.

Wherein, the hardener comprises 40-60% by weight of nano-silicon dioxide, 0.01-0.5% of sodium oxide and a balanced amount of water. In this way, the hardener can make the surface of the ceramic fiber filter tube have the effect of better strength.

In order to make the above-mentioned and other purposes, features and advantages of this creation more obvious and easy to understand, the preferred embodiments of this creation are given below, and are described in detail with the accompanying drawings; in addition, the same symbols are marked in different drawings. are considered to be the same, and their descriptions will be omitted.

Please refer to Figures 1 and 2, which is a preferred embodiment of the ceramic fiber filter tube of the present invention, which includes a tube body 1 and a waterproof reinforcement layer 2, and the waterproof reinforcement layer 2 is located outside the tube body 1. surface.

Referring to FIG. 1 , the pipe body 1 can be a hollow cylinder, and the shape of the pipe body 1 is not limited in the present invention. In this embodiment, the cross-sectional shape of the pipe body 1 can be circular. The pipe body 1 has an open end S1 and a closed end S2, the open end S1 can have a flange 11, and the flange 11 can be used to connect a suction device, a hanger or a pipeline, etc. The closed end S2 is preferably an arc spherical. The pipe body 1 has a plurality of pores (not shown in the figure) evenly distributed, and the diameter of the plurality of pores can be 5-200 nm. In this way, when the dust and exhaust gas flow into the interior from the outside of the pipe body 1, the particles in the exhaust gas PM2.5.PM1 dust can be isolated on the outer surface of the pipe body 1 .

Specifically, the pipe body 1 can be formed by molding a mud material containing ceramic fibers, a binder and water into a predetermined shape through a mold, and then drying it. For example, the monofilament length of the ceramic fiber can be 5-30 mm, the diameter can be 5-15 μm, and the material of the ceramic fiber can be alumina fiber, so that the pipe body 1 can have high temperature resistance and corrosion resistance properties. The binder can be a polymer material such as silica sol or polyimide, and the weight ratio of the ceramic fiber to the binder can be 1:0.05-0.5, and the amount of water added is to form a plastic mud. for the principle.

Referring to Figure 2, the waterproof strengthening layer 2 is located on the outer surface of the pipe body 1; the thickness of the waterproof strengthening layer 2 can be 5-20 mm, and the waterproof strengthening layer 2 can be a hydrophobic solution and A hardener is formed after adhering to the pipe body 1 . The hydrophobic solution can include a fluorosilicon material and a film-forming agent, and the fluorosilicon material and the film-forming agent can be mixed in a weight ratio of 1:1-5 to form the hydrophobic solution. The fluorosilicon material can be nano-silicon dioxide modified by fluorosilane. In this embodiment, the fluorosilicon material is nano-silica modified with hexafluorosiloxane; the film-forming agent can be a polyacrylate copolymer, so that the hydrophobic solution has better adhesion. The polyacrylate copolymer can be formed by, for example, uniformly mixing methyl methacrylate, methyl acrylate, ethyl formate and butyl acrylate, and then adding benzoyl peroxide and butyl acetate. In this way, the water repellent reinforcement layer 2 can reduce the adsorption of the water liquid by the hydrophobic solution, so that the water liquid is not easy to stay on the surface of the ceramic fiber filter tube.

In addition, the hardener can be a polymer material such as resin or colloidal silica. In this embodiment, silica sol is selected as the hardener, and the silica sol can contain nano-silica (Nano SiO ₂ ) , sodium oxide (Na ₂ O) and a balanced amount of water, the weight percentage of the nano-silicon dioxide can be 40-60%; the weight percentage of the sodium oxide can be 0.01-0.5%, so that the silica sol can be made It has the characteristics of high temperature resistance and acid resistance, and because the waterproof reinforcement layer 2 has the hardener, the ceramic fiber filter tube can have better strength. It is worth noting that the constituent particles of the waterproof strengthening layer 2 are smaller than 1 nm, that is, the waterproof strengthening layer 2 is formed of silicon dioxide particles with a size of nanometers. Therefore, several nanometers of the waterproof strengthening layer 2 are formed. The silica particles can be distributed around the plurality of pores of the tube body 1 and the surface of the tube body 1 without pores. In this way, the waterproof reinforcement layer 2 can not block the pores of the pipe body 1 , thereby affecting the filtering effect of the pipe body 1 .

In addition, before attaching the waterproof strengthening layer 2 to the outer surface of the pipe body 1, the outer surface of the pipe body 1 can be subjected to surface corrosion treatment by using an alkaline solution, so as to improve the waterproof strengthening layer 2 to the pipe body 1. the role of adhesion. For example, the alkaline solution can be a sodium hydroxide solution, and the concentration of the sodium hydroxide solution is preferably 0.1 mol/L, and the time of the surface corrosion treatment is preferably 2 min. After the outer surface of the tube body 1 is subjected to surface corrosion treatment, the alkaline solution on the tube body 1 is rinsed with water, and then the above-mentioned hydrophobic solution is attached to the tube body 1 by soaking or coating. , and solidify the hydrophobic solution attached to the tube body 1 by air-drying or baking at room temperature.

After the hydrophobic solution is completely cured, the hardener is attached to the surface of the pipe body 1. At this time, the hardener and the hydrophobic solution can be co-distributed on the surface of the pipe body 1 to form the waterproof reinforcement layer. 2. For example, the hardener can be attached to the tube body 1 to which the hydrophobic solution is attached by soaking or coating. In this embodiment, the tube body 1 is immersed in the hardener for 1-4 times, and the soaking time for a single time can be 10-60 seconds, so that the hardener can be uniformly adsorbed on the tube body 1 surface. Next, the tube body 1 is baked or air-dried at room temperature. For example, the tube body 1 can be heated at a temperature of 100-150° C. for 2-7 hours to ensure that the hardener can be completely cured , thereby exerting the effect of improving the structural strength of the pipe body 1 .

To sum up, the ceramic fiber filter tube of this creation and the ceramic fiber filter tube of this creation can reduce the adsorption of water liquid through the setting of the waterproof reinforcement layer, so that the water liquid is not easy to stay on the surface of the ceramic fiber filter tube It can be quickly removed, thereby preventing the pipe body from cracking due to uneven heating caused by moisture after absorbing water vapor. In addition, the waterproof reinforcement layer can make the ceramic fiber filter tube have better strength, and can achieve the effect of prolonging the service life of the ceramic fiber filter tube.

Although the present creation has been disclosed by the above-mentioned preferred embodiments, it is not intended to limit the present creation. Any person skilled in the art can make various changes and modifications relative to the above-mentioned embodiments without departing from the spirit and scope of the present creation. Therefore, the protection scope of this creation shall include all changes within the meaning and equivalent scope recorded in the appended patent application scope.

﹝This creation﹞ 1: Tube body 11: Flange 2: Waterproof reinforcement layer S1: open end S2: closed end

[Figure 1] The front view of a preferred embodiment of the present invention. [Picture 2] An enlarged view of part A in the first picture.

1: Tube body

2: Waterproof reinforcement layer

Claims (5)

A ceramic fiber filter tube comprising: a tube body having a plurality of apertures, the tube body having an open end and a closed end; and A waterproof strengthening layer is located on the outer surface of the pipe body. The waterproof strengthening layer is formed by mixing a hydrophobic solution and a hardener and curing. The ceramic fiber filter tube of claim 1, wherein the pore diameter of each of the pores is 5-200 nm. The ceramic fiber filter tube of claim 1, wherein the thickness of the waterproof reinforcement layer is 5-20 mm. The ceramic fiber filter tube of claim 1, wherein the hydrophobic solution comprises hexafluorosiloxane-modified nano-silica. The ceramic fiber filter tube of claim 1, wherein the hardener comprises 40-60% by weight of nano-silicon dioxide, 0.01-0.5% of sodium oxide and a balanced amount of water .

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