High-efficiency dry-type chemical filter

Abstract

The utility model discloses a high-efficiency dry-type chemical filter and belongs to the technical field of filters. An efficient dry-type chemical filter comprises a shell, an air inlet is formed in one side of the shell, a centrifugal induced draft fan is fixed to one side of the shell and located on the inner side of the shell, a first filtering component is fixed to the inner side of the shell and located on the lower side of the centrifugal induced draft fan, and a second filtering component is fixed to the inner side of the shell and located on the lower side of the centrifugal induced draft fan. The filter adopts a two-stage filtering design, firstly, impurities are adsorbed and filtered through the first filtering layer made of activated carbon, and then chemical filtering is carried out through the filtering element coated with the catalyst coating, so that it is ensured that entering air is comprehensively cleaned; meanwhile, the filter element is arranged in the shape of a long cylinder, so that the contact area between the filter element and chemical substances can be increased, the filtering efficiency is improved, air can make more sufficient contact with the catalyst coating when passing through the filter element, and the chemical reaction effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a high-efficiency dry chemical filter. Background Art

[0002] Dry chemical filters are widely used in various industrial waste gas treatment fields, such as chemical, pharmaceutical, food, metallurgy, etc. In these fields, the requirements for waste gas treatment are high, and efficient and reliable purification equipment is needed to ensure environmental protection requirements in the production process.

[0003] Existing dry chemical filters are mainly composed of filter layers and chemical filter materials for filtration. During the filtration process, some filters sometimes have problems with poor air fluidity. For example, if the filter layer is too thick or too dense, it will restrict the passage of air. When air passes through the filter layer, it needs to interact with the filter surface. If the filter layer is too thick or too dense, the air flow resistance will increase and the air fluidity will be reduced. When the air fluidity is poor, the filtration efficiency may be reduced. If the air fluidity is poor, some air may not be able to fully flow through the filter layer, resulting in poor filtration effect and a decrease in equipment performance. Since the main function of the filter is to purify the air, if the air fluidity is poor, it will affect its purification effect and cause a decrease in equipment performance. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a high-efficiency dry chemical filter, which solves the problems raised by the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-efficiency dry chemical filter, comprising: a shell, an air inlet is opened on one side of the shell, a centrifugal induced draft fan is fixed on one side of the shell, the centrifugal induced draft fan is located on the inner side of the shell, a filter component 1 is fixed on the inner side of the shell, the filter component 1 is located on the lower side of the centrifugal induced draft fan, and a filter component 2 is fixed on one side of the shell;

[0007] The first filter component comprises a connecting plate, the inner side of the shell is fixed with the connecting plate, a plurality of holes are opened on the connecting plate, and the connecting plate is plugged with a filter cartridge through the holes.

[0008] Preferably, the filter cartridge comprises a disc, the hole opened on the connecting plate is fitted with the disc, a filter core is fixed on the lower side of the disc, a vent is opened on the filter core, and a filter layer 1 is fixed on the inner side of the filter core.

[0009] Preferably, the filter layer 1 comprises a circular plate, a circular plate is fixed on the inner side of the filter core, and a plurality of through holes of different sizes are formed on the circular plate.

[0010] Preferably, the filter element is coated with a catalyst coating, and the first filter layer is made of activated carbon.

[0011] In the filter cartridge, the air is first filtered through the filter element, which is also coated with a catalyst coating. This coating can react with certain harmful gases and convert them into harmless or low-harm substances. For example, certain harmful gases can be converted into water and carbon dioxide. At the same time, the filter element can block smaller particles and microorganisms. In addition, the filter layer on the inside of the filter element is mainly made of activated carbon, which can be used to adsorb and filter impurities.

[0012] Preferably, the second filter component comprises an air inlet, the air inlet is fixed on one side of the shell, the second filter layer is fixed on one side of the air inlet, and the second filter layer is provided with an air outlet on one side.

[0013] Preferably, the second filter layer comprises a filter cavity, a filter cavity is fixed on one side of the air inlet, and two groups of filter plates are fixed on the inner side of the filter cavity.

[0014] Preferably, a plurality of holes are provided on the two groups of filter plates, and both groups of filter plates are coated with a silica gel adsorbent coating.

[0015] In the second filter layer, the air is filtered through two groups of filter plates, which are coated with silica gel adsorbent coatings. The main function of the silica gel adsorbent coating in the filter is adsorption and filtration. Silica gel is an adsorbent with high specific surface area and rich micropores. It can effectively adsorb impurities, harmful substances and odors in gases and liquids, thereby increasing the adsorption performance of the filter plates and improving the filtering effect. The filtered air then flows out from the air outlet through the holes opened on the two groups of filter plates.

[0016] Compared with the prior art, the utility model provides a high-efficiency dry chemical filter, which has the following beneficial effects:

[0017] The filter of the utility model adopts a two-stage filtration design. It first preliminarily adsorbs and filters impurities through a filter layer 1 made of activated carbon, and then chemically filters through four groups of filter elements coated with a catalyst coating. This ensures that the incoming air is fully cleaned. At the same time, the four groups of filter elements can increase the fluidity of the air. The filter elements are arranged in a long cylindrical shape, which can increase their contact area with the chemical substances, thereby improving the filtration efficiency, so that the air can more fully contact the catalyst coating when passing through the filter element, thereby enhancing the effect of the chemical reaction. In addition, the filter layer 1 and the filter element have a high specific surface area and abundant micropores, which can effectively adsorb and filter impurities, harmful substances and odors. At the same time, the entire filtration process is carried out under dry conditions without the use of liquid substances, which greatly reduces the safety risks caused by leakage or misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a high-efficiency dry chemical filter proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-section structure of a high-efficiency dry chemical filter proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-section structure of a high-efficiency dry chemical filter proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the decomposition structure of a high-efficiency dry chemical filter proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the cutaway structure of a high-efficiency dry chemical filter proposed by the utility model.

[0023] In the figure: 1. outer shell; 2. air inlet; 3. centrifugal induced draft fan; 4. filter element one; 41. connecting plate; 42. filter cartridge; 421. disc; 422. filter element; 423. vent; 424. filter layer one; 4241. circular plate; 4242. through hole; 5. filter element two; 51. air inlet; 52. filter layer two; 521. filter chamber; 522. filter plate; 53. air outlet. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Example:

[0027] Reference Figure 1-5 A high-efficiency dry chemical filter comprises: a shell 1, an air inlet 2 is provided on one side of the shell 1, a centrifugal induced draft fan 3 is fixed on one side of the shell 1, the centrifugal induced draft fan 3 is located on the inner side of the shell 1, a filter component 1 4 is fixed on the inner side of the shell 1, the filter component 1 4 is located on the lower side of the centrifugal induced draft fan 3, and a filter component 2 5 is fixed on one side of the shell 1;

[0028] The filter component 4 includes a connecting plate 41, which is fixed to the inner side of the housing 1. The connecting plate 41 is provided with a plurality of holes, and the connecting plate 41 is plugged with a filter cartridge 42 through the holes.

[0029] Working principle: The filter is mainly based on the suction force generated by the centrifugal induced draft fan 3, and the centrifugal induced draft fan 3 is a prior art, and the utility model does not describe it in detail. The centrifugal induced draft fan 3 allows external air to enter the housing 1 through the air inlet 2. During the entry process, the air first passes through the filter component 1 4 for preliminary filtration, and then the air continues to flow forward and passes through the filter component 2 5 for secondary filtration;

[0030] The air enters the filter cartridge 42 through the hole on the connecting plate 41. In the filter cartridge 42, the air is first filtered by the filter element 422. The filter element 422 is also coated with a catalyst coating. The catalyst coating can react with certain harmful gases and convert them into harmless or low-harm substances. This not only removes harmful substances in the air, but also reduces the potential harm of these harmful substances to the human body. At the same time, the elongated cylindrical arrangement of the filter element 422 can increase its contact area with the chemical substances, thereby improving the filtration efficiency, so that the air can more fully contact with the catalyst coating when passing through the filter element 422, thereby enhancing the effect of the chemical reaction. In addition, the elongated cylindrical design also helps to extend the service life of the filter element, because the longer filter medium can better capture and decompose harmful substances, reduce the frequency of filter element replacement, greatly improve the performance of the filter, and save maintenance costs for users. In addition, the filter layer 424 arranged on the inner side of the filter element 422 is mainly made of activated carbon material, which can be used to adsorb and filter impurities. The air that has been initially filtered continues to flow forward through the air inlet 51 and the second filter layer 52. In the second filter layer 52, the air is filtered by two groups of filter plates 522. The filter plates 522 are coated with a silica gel adsorbent coating, and the role of the silica gel adsorbent coating in the filter is mainly adsorption and filtration. Silica gel is an adsorbent with a high specific surface area and abundant micropores, which can effectively adsorb impurities, harmful substances and odors in gases and liquids, thereby increasing the adsorption performance of the filter plates 522 and improving the filtering effect. Subsequently, the filtered air flows out from the air outlet 53 through the holes opened on the two groups of filter plates 522.

[0031] The filter cartridge 42 includes a disc 421 , the disc 421 is fitted into a hole on the connecting plate 41 , a filter element 422 is fixed to the lower side of the disc 421 , a vent 423 is provided on the filter element 422 , and a filter layer 1 424 is fixed to the inner side of the filter element 422 .

[0032] The first filter layer 424 includes a circular plate 4241 . The circular plate 4241 is fixed to the inner side of the filter core 422 . The circular plate 4241 is provided with a plurality of through holes 4242 of different sizes.

[0033] The filter element 422 is coated with a catalyst coating, and the filter layer 1 424 is made of activated carbon.

[0034] In the filter cartridge 42, the air is first filtered by the filter element 422, which is also coated with a catalyst coating. This coating can react with certain harmful gases and convert them into harmless or low-harm substances. For example, certain harmful gases can be converted into water and carbon dioxide. At the same time, the filter element 422 can block smaller particles and microorganisms. In addition, the filter layer 424 arranged on the inner side of the filter element 422 is mainly made of activated carbon, which can be used to adsorb and filter impurities.

[0035] The second filter component 5 includes an air inlet 51 . The air inlet 51 is fixed to one side of the housing 1 . A second filter layer 52 is fixed to one side of the air inlet 51 . An air outlet 53 is provided to one side of the filter layer 52 .

[0036] The second filter layer 52 includes a filter cavity 521 . The filter cavity 521 is fixed on one side of the air inlet 51 . Two groups of filter plates 522 are fixed on the inner side of the filter cavity 521 .

[0037] A plurality of holes are formed on the two groups of filter plates 522 , and both groups of filter plates 522 are coated with a silica gel adsorbent coating.

[0038] In the filter layer 2 52 , the air is filtered through two groups of filter plates 522 , which are coated with a silica gel adsorbent coating. The silica gel adsorbent coating in the filter mainly functions as adsorption and filtration. Silica gel is an adsorbent with a high specific surface area and abundant micropores, which can effectively adsorb impurities, harmful substances and odors in gases and liquids, thereby increasing the adsorption performance of the filter plates 522 and improving the filtering effect. The filtered air then flows out from the air outlet 53 through the holes opened on the two groups of filter plates 522 .

Claims

1. A high-efficiency dry chemical filter, comprising: A shell (1), characterized in that an air inlet (2) is provided on one side of the shell (1), a centrifugal induced draft fan (3) is fixed on one side of the shell (1), the centrifugal induced draft fan (3) is located on the inner side of the shell (1), a filter component 1 (4) is fixed on the inner side of the shell (1), the filter component 1 (4) is located on the lower side of the centrifugal induced draft fan (3), and a filter component 2 (5) is fixed on one side of the shell (1); The filter element (4) comprises a connecting plate (41), the connecting plate (41) is fixed on the inner side of the housing (1), a plurality of holes are formed on the connecting plate (41), and a filter cartridge (42) is inserted into the connecting plate (41) through the holes; The second filter component (5) comprises an air inlet (51), one side of the housing (1) is fixed with the air inlet (51), one side of the air inlet (51) is fixed with a second filter layer (52), and one side of the second filter layer (52) is provided with an air outlet (53); The second filter layer (52) comprises a filter cavity (521), one side of the air inlet (51) is fixed with the filter cavity (521), and the inner side of the filter cavity (521) is fixed with two groups of filter plates (522); A plurality of holes are provided on the two groups of filter plates (522), and both groups of filter plates (522) are coated with a silica gel adsorbent coating.

2. A high efficiency dry chemical filter according to claim 1, characterized in that: The filter cartridge (42) comprises a disc (421), a hole formed on the connecting plate (41) is fitted with the disc (421), a filter core (422) is fixed on the lower side of the disc (421), a vent (423) is formed on the filter core (422), and a filter layer 1 (424) is fixed on the inner side of the filter core (422).

3. A high efficiency dry chemical filter according to claim 2, characterized in that: The filter layer 1 (424) comprises a circular plate (4241), the circular plate (4241) is fixed on the inner side of the filter core (422), and the circular plate (4241) is provided with a plurality of through holes (4242) of different sizes.

4. A high-efficiency dry chemical filter according to claim 2, characterized in that: The filter element (422) is coated with a catalyst coating, and the filter layer 1 (424) is made of activated carbon.

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