TWM539026U - Ceramic fiber filter tube capable of filtering suspending aerosol and gaseous pollutants - Google Patents

Description

Ceramic fiber filter tube that can filter suspended gas glue and gas pollutants

This creation is about a ceramic fiber filter tube, especially a ceramic fiber filter tube that can filter suspended gas glue and gas pollutants.

The apparatus for treating exhaust gas comprises a fiber filter bag which is a bag filter made of non-woven fabric, polyester fiber or glass fiber, and in use, the fiber filter bag is mounted on a filter system. Then, the exhaust gas is drawn into the fiber filter bag by the air extracting device of the filter system, and then filtered through the fiber filter bag, so that the dust contained in the exhaust gas is isolated from the outside of the fiber filter bag, thereby achieving a filtering effect.

In addition, the conventional apparatus for treating exhaust gas also includes a ceramic fiber filter tube which is a tubular filter member made of ceramic fiber, and the ceramic fiber filter tube has an open end and a closed end. Installing the ceramic fiber filter tube in the filtering system, and clamping the open end to fix the position thereof, and continuously reducing the pressure inside the ceramic fiber filter tube by the air suction device of the filtering system, The outside of the ceramic fiber filter tube is sucked into the inside, so that the dust contained in the exhaust gas is isolated from the outer wall of the ceramic fiber filter tube, and the filtering effect is achieved.

Exhaust gas from incinerators, power plants, glass industry or other industrial manufacturing plants, in addition to large-size dust, contains suspended gas (such as PM ₁₀ particles and PM _2.5 particles) and gaseous pollutants (such as nitrogen). Contaminants such as oxide gases and organic volatile gases, in order to avoid polluting the atmosphere, and even affect human health, the exhaust gas containing the above pollutants is required to be properly disposed of before being discharged.

However, the conventional ceramic fiber filter tube can only filter dust, and can not effectively remove the smaller particle size suspended gas glue, nitrogen oxide gas and organic volatile gas in the exhaust gas. In view of this, the conventional ceramic fiber filter tube still needs to be improved.

In order to solve the above problems, the present invention provides a ceramic fiber filter tube which can filter suspended gas glue and gas pollutants, and can filter suspended gas glue and gas pollutants.

The invention relates to a ceramic fiber filter tube capable of filtering suspended gas glue and gas pollutants, comprising: a tube body having a relatively open end and a closed end, and the tube body comprises a plurality of ceramic fibers and The plurality of catalyst particles are selected from the group consisting of a denitration catalyst particle and an organic volatile gas removal catalyst particle, and the porosity of the pipe body is 65 to 90%.

Accordingly, the ceramic filter tube capable of filtering the suspended gas glue and the gas-like pollutant can effectively filter the suspended gas gel by including the ceramic fiber, and can effectively be effective by including the catalyst particle. The treatment of nitrogen oxide gas and organic volatile gas achieves the effect of "effective treatment of suspended gas and gaseous pollutants in exhaust gas".

Wherein, the porosity of the tube body is 80 to 90%. In this way, the creation can achieve the effect of "while ensuring good filtration effect and the overall strength of the ceramic fiber filter tube".

Wherein, the denitration catalyst particles comprise a titanium dioxide particle and an ammonium metavanadate particle. In this way, this creation can achieve the "nitrogen oxide removal" effect.

Wherein, the tube body further comprises a zeolite particle. Thereby, the creation can achieve the effect of "promoting the efficiency of the denitrification catalyst to treat the nitrogen oxide gas."

The organic volatile gas removal catalyst particles are selected from the group consisting of a platinum catalyst particle, a palladium catalyst particle, a germanium catalyst particle or a rare earth element catalyst particle. In this way, this creation can achieve the effect of "removing organic volatile gases".

1‧‧‧pipe body

11‧‧‧Open end

111‧‧‧Flange

12‧‧‧closed end

13‧‧‧Ceramic fiber

14‧‧‧catalyst particles

141‧‧‧Denitration catalyst particles

142‧‧‧Organic volatile gas removal catalyst particles

2‧‧‧Exhaust gas treatment system

21‧‧‧ entrance

22‧‧‧Export

Fig. 1 is a side cross-sectional view showing a ceramic filter tube of a filterable suspended gas gel and a gas-like pollutant according to an embodiment of the present invention.

Fig. 2 is a partial enlarged view of the A region of the ceramic fiber filter tube of the filterable suspended gas glue and the gas pollutant in Fig. 1.

Fig. 3 is a schematic diagram showing the state of use of the ceramic filter tube of the filterable suspended gas gel and gaseous pollutants.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. "Glue" means a dispersion formed by particles suspended in the air, wherein particles having a particle diameter of less than 10 μm are referred to as PM ₁₀ particles, and particles having a particle diameter of less than 2.5 μm are referred to as PM _2.5 particles. "Gas pollutant" means a pollutant gas such as nitrogen oxide (NO _x ) gas or organic volatile gas (VOC).

Please refer to FIG. 1 , which is a ceramic fiber filter tube with filterable suspended gas glue and gas contaminant according to an embodiment of the present invention. The ceramic fiber filter tube comprises a tube body 1 , and the tube body 1 has a relative An open end 11 and a closed end 12, and the outer periphery of the open end 11 may be provided with a flange 111, which is also referred to as a flange, and can be used to connect a draft device, a pipeline or a splint. Etc., this is understood by those of ordinary skill in the art to which this creation belongs.

Referring to FIG. 2, the tubular body 1 may include a plurality of ceramic fibers 13 and a plurality of catalyst particles 14. In detail, the ceramic fiber 13 may have a diameter of 1 to 40 μm, and the ceramic fiber 13 may be selected from rock fiber, mineral wool fiber, alumina fiber, aluminosilicate fiber, calcium silicate fiber, and the like. Preferably, the aluminum silicate fiber can be used, whereby the tube 1 can withstand high temperatures and can resist corrosion by corrosive chemicals without chemical reaction with chemicals, so that it has a long use. life. In addition, the distribution density of the ceramic fiber 13 can be adjusted to form the ceramic fiber filter tube having pores to filter the suspended gas gel, and the porosity can be 65-90%, preferably 80~. 90%, whereby the tube 1 can have a good filtering effect on the PM ₁₀ particles and the PM _2.5 particles, avoiding particle blocking or poisoning the catalyst.

The catalyst particles 14 may be selected from the group consisting of a denitration catalyst particle 141 and an organic volatile gas removal catalyst particle 142.

The denitration catalyst particles 141 can catalyze the nitrogen oxide gas to reduce the nitrogen oxide gas to nitrogen. The denitration catalyst particles 141 comprise a titanium dioxide (TiO ₂ ) particle and an ammonium metavanadate (NH ₄ VO ₃ ) particle.

More specifically, the denitration catalyst particles 141 may be treated by selective catalytic reduction (Selective Catalytic Reduction), and the nitrogen oxide gas may be contacted before the denitration catalyst particles 141. First, it is mixed with ammonia gas (NH ₃ ), which can be used as a reducing agent when the nitrogen oxide gas is reduced. The main reduction reaction when the nitrogen oxide gas is reduced is as follows: 4NO+4NH ₃ +O ₂ →4N ₂ +6H ₂ O (1)

6NO ₂ +8NH ₃ →7N ₂ +12H ₂ O (2)

Thereby, the nitrogen oxide gas can be reduced by the denitration catalyst particles 141 into nitrogen and oxygen to achieve the effect of removing the nitrogen oxide gas.

In addition, the tube body 1 may further comprise a zeolite particle which is a porous crystalline solid. By adding the zeolite particle, the ammonia gas may be stored and supplied to the reduction reaction as a reducing agent to promote the removal. The efficiency of the nitrogen oxide gas is treated by the nitrate catalyst particles 141.

The organic volatile gas removing catalyst particles 142 can process the organic volatile gas, and the organic volatile gas removing catalyst particles 142 can be selected, for example, a platinum catalyst particle, a palladium catalyst particle, a catalyst particle or One or more of the rare earth element catalyst particles, the organic volatile gas removal catalyst particles 142 can be similarly used in the form of a catalyst-added catalyst active material, which is suitable for the organic volatile gas removal. Catalyst particles 142 The supporting system may, for example, be alumina, cerium oxide or titanium dioxide. Thereby, the organic volatile gas can be decomposed by the organic volatile gas removing catalyst particles 142 to achieve the effect of removing the organic volatile gas.

Referring to FIG. 3, when the ceramic fiber filter tube with filterable suspended gas glue and gaseous pollutants is applied to an exhaust gas treatment system 2, the worker can filter the ceramic fiber through the flange 111. The tube is installed in the exhaust gas treatment system 2, and starts a ventilation device (not shown) of the exhaust gas treatment system 2. At this time, the pressure inside the ceramic fiber filter tube is lowered, and at the same time, the exhaust gas to be treated can be The inlet 21 is drawn into the exhaust gas treatment system 2, and is continuously drawn through the pipe wall of the pipe body 1, so that the suspended gas glue contained in the exhaust gas is filtered by the pipe body 1, and the exhaust gas contains the nitrogen oxide gas. And the organic volatile gas may be treated by the denitration catalyst particles 141 and the organic volatile gas removal catalyst particles 142, respectively, and the treated exhaust gas may be extracted from the open end 11 of the ceramic fiber filter tube, and continued It is discharged or recycled from an outlet 22. Thereby, the removal efficiency of the suspended gas glue can reach more than 99%, the removal efficiency of the nitrogen oxide gas can reach 90 to 95%, and the removal efficiency of the organic volatile gas can reach 90%.

In summary, the present invention can filter the suspended gas glue and the gas-contaminant ceramic fiber filter tube for industrial waste gas treatment systems such as incinerators, power plants and glass industries, by including the ceramic fiber 13 It can filter the suspended gas gel containing PM ₁₀ particles and PM _2.5 particles, and can effectively treat the nitrogen oxide gas and the organic volatile gas by including the catalyst particles 14 . efficacy.

Although the present invention has been disclosed by the above-described preferred embodiments, it is not intended to limit the present invention, and it is still within the spirit and scope of the present invention to make various changes and modifications to the above embodiments. The technical scope of the protection is created, so the scope of protection of this creation is subject to the definition of the patent application scope attached.

1‧‧‧pipe body

11‧‧‧Open end

111‧‧‧Flange

12‧‧‧closed end

13‧‧‧Ceramic fiber

Claims (5)

A ceramic fiber filter tube capable of filtering suspended gas glue and gas pollutants, comprising: a tube body having a relatively open end and a closed end, and the tube body comprises a plurality of ceramic fibers and a plurality of contacts The media particles are selected from the group consisting of a denitrification catalyst particle and an organic volatile gas removal catalyst particle, and the porosity of the pipe body is 65 to 90%. For example, the ceramic fiber filter tube capable of filtering the suspended gas glue and the gas pollutant according to the first aspect of the patent application, wherein the tube body has a porosity of 80 to 90%. The ceramic fiber filter tube of the filterable suspension gas gel and the gas pollutant according to the first aspect of the invention, wherein the denitration catalyst particle comprises a titanium dioxide particle and an ammonium metavanadate particle. The ceramic fiber filter tube of the filterable suspension gas gel and the gas pollutant according to claim 3, wherein the pipe body further comprises a zeolite particle. The ceramic fiber filter tube of the filterable suspension gas gel and the gas pollutant according to the first aspect of the invention, wherein the organic volatile gas removal catalyst particle is selected from the group consisting of a platinum catalyst particle and a palladium catalyst. A group of particles, a catalyst particle or a rare earth element catalyst particle.