TWI807924B - A replaceable auxiliary filtering unit applied to a filtering device - Google Patents

Abstract

A replaceable auxiliary filtering unit applied to a filtering device which includes a plurality of openings formed on a ventilation channel of a catalytic reaction tower. On each of the openings is disposed an auxiliary filtering unit which is arranged between any two catalytic reaction bricks inside the catalytic reaction tower. The auxiliary filtering unit includes a filtering frame and a catalytic fiber blanket. The catalytic fiber blanket is adapted to filter waste gas discharged from a pipeline. The auxiliary filtering unit can be replaced and cleaned, which ensures that the concentration of the discharged contaminant meets the requirement, attains the function of convenient replacement, prolongs the life of the catalytic reaction bricks, and decreases maintenance costs.

Description

Replaceable filter accessories for filter equipment

The present invention relates to a filter device, in particular to a replaceable filter accessory for the filter device.

With the increasing popularity of petrochemical products and the development of high-tech industries, the waste gas produced by industry is gradually increasing, and the pollution is becoming more and more serious, which poses a great threat to the quality of our living environment. Therefore, how to effectively ensure that the exhaust gas discharged can meet the emission regulations in a stable manner to avoid air pollution is the goal of everyone's efforts; The main reason is that each filter equipment has a maximum amount that can be processed, and the instantaneous exhaust smoke flow rate is often increased due to excessive combustion volume, or the concentration of pollutants contained in the exhaust gas is increased due to the difference in combustion species, so that the catalyst device in the filter equipment cannot be effectively converted, resulting in the phenomenon that the harmful substances contained in the exhaust gas exceed the standard; moreover, after a period of time, the catalyst device in the filter device must be replaced to ensure the filtration quality. The service life of filter equipment is the target of improvement.

Referring to Fig. 1, conventional filtering equipment 1 comprises a pipeline 11 for exhaust gas discharge, a dust filter 12 arranged on the pipeline 11, and a catalyst reaction tower 13 arranged on the pipeline 11 and positioned at the rear of the dust filter 12, wherein the dust filter 12 can filter the particle dust in the exhaust gas, and in addition, the catalyst reaction tower 13 has a body 131 formed with a ventilation channel 132 in it, and a plurality of catalysts arranged on the ventilation channel 132 Reaction brick 133, and the above-mentioned coal-contact reaction brick 133 can react with the volatile organic gas in the waste gas through the catalyst in the coal-contact reaction brick 133 when filtering waste gas, and then discharge the volatile organic gas in the waste gas. Afterwards, the conversion efficiency of the catalytic reaction brick 133 will decrease, so the catalytic reaction brick 133 in the entire catalytic reaction tower 13 must be replaced every once in a while, and the overall maintenance cost cannot be reduced.

Therefore, the object of the present invention is to provide a replaceable filter accessory for filter equipment, which can improve the filter effect and reduce the maintenance cost.

Therefore, the present invention is a replaceable filter accessory for filtering equipment. The filter equipment includes a pipeline for exhaust gas discharge, a dust filter arranged on the pipeline, and a catalytic reaction tower arranged on the pipeline and behind the dust filter; wherein, the catalytic reaction tower includes a body with a ventilation channel formed therein, a plurality of catalytic reaction bricks arranged at intervals on the ventilation channel, a plurality of replacement ports arranged on the ventilation channel, and filter accessories respectively arranged on the replacement ports; The auxiliary filter is placed between any two catalytic reaction bricks, wherein the auxiliary filter includes a filter material frame and a catalytic fiber blanket that can be arranged in the filter material frame, so as to filter the exhaust gas discharged from the pipeline through the catalytic fiber blanket, so that the pollutants in the exhaust gas can undergo a catalytic conversion with the catalytic fiber blanket again, so that the pollutants that can be treated are increased by the catalytic reaction brick, so it can ensure that the pollutants in the exhaust gas can be effectively converted, so that the exhaust gas can pass through a limited concentration, plus the The catalyst fiber blanket can be easily replaced, and can prolong the life of the catalyst reaction brick and reduce maintenance costs.

The aforementioned and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of preferred embodiments with reference to the drawings.

Referring to Fig. 2, Fig. 3, the present invention is used in filter equipment 3 and the first preferred embodiment of replaceable filter auxiliary part 4, this filter equipment 3 comprises a pipeline 31 for waste gas discharge, a dust filter 32 that is arranged on this pipeline 31, and a catalyst reaction tower 33 that is arranged on this pipeline 31 and is positioned at this dust filter 32 rear, wherein, this dust filter 32 can filter the particulate dust in this exhaust gas, in addition, this catalyst reaction tower 33 has a inside and forms a ventilation channel 3 The body 331 of 311, a plurality of catalytic reaction bricks 332 arranged on the ventilation passage 3311, and a plurality of replacement ports 3312 arranged on the ventilation passage 3311, and the aforementioned dust filter 32 will be able to filter the particulate dust in the exhaust gas, which can be a wet-type smoke scrubber or other filters that can filter particulate dust.

Continuing from the foregoing, the replacement ports 3312 are respectively provided with a filter accessory 4, and the aforementioned filter accessories 4 are placed between any two catalytic reaction bricks 332, wherein the filter accessory 4 includes a filter material frame 41 and a catalyst fiber blanket 42 that can be arranged in the filter material frame 41, so that the catalyst fiber blanket 42 is put into the filter material frame 41 and fixed, so that the ventilation channel 3 can be inserted into or taken out from the filter material frame 41 through the replacement port 3312 311, the catalyst fiber blanket 42 can be a catalyst ceramic fiber blanket, and the catalyst used in the catalyst fiber blanket 42 can be a vanadium-titanium catalyst, a vanadium-tungsten-titanium catalyst, a manganese-based catalyst, or other catalysts that decompose pollutants; It can be manufactured using different catalysts to cope with various temperatures, such as high temperature (300~420), medium temperature (250~300), low temperature (175~250) denitrification efficiency, and the function of removing dioxin or other corresponding volatile organic gases.

Referring to Fig. 2 and Fig. 3, during the action of this embodiment, when the exhaust gas produced passes through the filter device 3, the exhaust gas will enter the pipeline 31, and the exhaust gas first passes through the dust filter 32 on the pipeline 31, and after the dust particles in the exhaust gas are intercepted and filtered, the exhaust gas enters the catalyst reaction tower 33 through the pipeline 31, so that the contained organic volatile gas in the exhaust gas reacts with the catalyst reaction bricks 332, and can be combined with the catalyst reaction bricks 332 at the same time. The catalyst fiber blanket 42 reacts to achieve a multi-level catalytic reaction effect, and the catalyst used in each catalyst fiber blanket 42 located between any two catalyst reaction bricks 332 can be set as a catalyst material that can respond to different reaction temperatures, which can greatly increase the harmful substances that can be captured, and perform catalytic conversion for pollutants in different exhaust gases or exhaust gases at different temperatures; In addition to the amount of waste gas that can be treated in the 32, if the catalytic fiber blanket 42 is added, the overall waste gas volume that can be treated can be increased without installing or changing the catalytic reaction brick 332. At the same time, the catalytic fiber blanket 42 can also be replaced, so the service life of the catalytic reaction brick 332 can be increased, and the maintenance cost of the catalytic reaction brick 332 can be reduced. In addition to improving the filtration efficiency, the overall use and maintenance costs can be reduced.

Referring to Fig. 4, Fig. 5, the present invention is used in filter equipment 3 and the second preferred embodiment of replaceable filter aid 4, this filter equipment 3 still comprises structures such as pipeline 31, dust filter 32 and catalyst reaction tower 33, and this filter aid 4 still comprises structures such as filter material frame 41 and catalyst fiber blanket 42, and aforesaid structure and connection relationship and desired effect are all the same as the first embodiment, will not be described in detail, especially in this embodiment, this catalyst fiber blanket 42 has a filter in the waste gas The dust layer 421 of dust, and a catalyst fiber layer 422 that makes the exhaust gas undergo catalytic reaction, and the aforementioned dust layer 421 can be a ceramic fiber blanket to filter the particulate dust in the exhaust gas through the dust layer 421, and the catalyst fiber layer 422 can be a catalyst ceramic fiber blanket to filter organic volatiles, dioxins, etc. in the exhaust gas through the catalyst fiber layer 422; therefore, in this embodiment, the catalyst fiber blanket has the dust The double-layer design of the layer 421 and the catalytic fiber layer 422 makes the catalytic fiber blanket additionally have the effect of filtering the particulate dust in the exhaust gas, so that the filtering effect is further improved.

To sum up the foregoing, the present invention is used for filter equipment and replaceable filter accessories, which mainly consist of catalytic reaction bricks arranged at intervals on the ventilation channel in the catalytic reaction tower, and at least one filter accessory that can be replaced in the ventilation channel and between any two catalytic reaction bricks; In addition to the limited concentration, the catalyst fiber blanket can also be designed to have a double-layer structure with a dust layer and a catalyst fiber layer, which can further improve the dust particle filtering effect. In addition, the catalyst fiber blanket can be easily replaced, and can also prolong the life of the catalyst reaction brick and reduce maintenance costs. Therefore, the purpose of the present invention can indeed be achieved.

But the above is only to illustrate the preferred embodiments of the present invention, and should not limit the scope of the present invention, that is, all simple equivalent changes and modifications made according to the scope of the patent application for the present invention and the content of the description of the invention should still fall within the scope of the patent of the present invention.

[knowledge] 1: Filtration equipment 11: pipeline 12: Dust filter 13: Catalytic reaction tower 131: Ontology 132: ventilation channel 133: coal contact reaction brick [this invention] 3: Filtration equipment 31: pipeline 32: Dust filter 33: Catalytic reaction tower 331: Ontology 332: Catalyst reaction brick 3311: ventilation channel 3312: Replacement port 4: Filter accessories 41: filter frame 42: Catalytic fiber blanket 421: dust layer 422: catalyst fiber layer

Figure 1 is a schematic diagram of a conventional filtering device. Fig. 2 is a schematic perspective view of the first preferred embodiment of the present invention. Fig. 3 is a schematic diagram of a catalytic fiber blanket according to the first preferred embodiment of the present invention. Fig. 4 is a schematic diagram of a second preferred embodiment of the present invention. Fig. 5 is a schematic diagram of a catalytic fiber blanket according to a second preferred embodiment of the present invention.

3: Filtration equipment

31: pipeline

32: Dust filter

33: Catalytic reaction tower

331: Ontology

332: Catalyst reaction brick

3311: ventilation channel

3312: Replacement port

4: Filter accessories

41: filter frame

42: Catalytic fiber blanket

Claims (4)

A replaceable filter accessory for filtering equipment. The filtering equipment includes a pipeline for exhaust gas discharge, a dust filter installed on the pipeline, and a catalytic reaction tower installed on the pipeline and behind the dust filter, wherein the dust filter can filter the particulate dust in the exhaust gas. In addition, the catalytic reaction tower has a body with a ventilation channel formed therein, and a plurality of catalytic reaction bricks arranged on the ventilation channel, and the ventilation channel communicates with the pipeline; A plurality of replacement ports are opened on the ventilation channel, and these replacement ports are respectively provided with a filter auxiliary part, and the aforementioned filter auxiliary parts are placed between any two catalyst reaction bricks, wherein the filter auxiliary part includes a filter material frame, and a catalyst fiber blanket that can be arranged in the filter material frame, wherein the catalyst fiber blanket has a dust layer for filtering the dust in the exhaust gas, and a catalyst fiber layer for making the exhaust gas undergo a catalytic reaction, so as to filter the exhaust gas discharged from the pipeline through the catalyst fiber blanket, And these filter accessories can be replaced and cleaned to improve the filter effect of the catalytic reaction tower. According to claim 1, the replaceable auxiliary filter for filter equipment, wherein the catalytic fiber blankets of each auxiliary filter are different catalysts. According to claim 1, the replaceable filter aid for filter equipment, the catalytic fiber blanket is a catalytic ceramic fiber blanket. According to claim 1, the replaceable filter aid for filter equipment, wherein the dust layer is a ceramic fiber blanket, and the catalytic fiber layer is a catalytic ceramic fiber blanket.

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