CN115006926A - Multi-layer multi-step air bag purification filter bag - Google Patents

Multi-layer multi-step air bag purification filter bag Download PDF

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Publication number
CN115006926A
CN115006926A CN202210753778.4A CN202210753778A CN115006926A CN 115006926 A CN115006926 A CN 115006926A CN 202210753778 A CN202210753778 A CN 202210753778A CN 115006926 A CN115006926 A CN 115006926A
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layer
framework
mobile jib
skeleton
connecting rod
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CN202210753778.4A
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CN115006926B (en
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徐桂成
徐博锐
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Shenzhen Doufang Technology Co ltd
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Shenzhen Doufang Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0001Making filtering elements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

The utility model provides a multistage wind package of multilayer purifies filter bag, relates to a filter equipment, a multistage wind package of multilayer purifies filter bag, and the device includes A layer, B layer, and the bottom on A layer is equipped with the B layer, and the inside on A layer is equipped with skeleton A, and skeleton A's bottom is equipped with skeleton B and is sliding connection between the two, and skeleton B establishes the inside on B layer. The device can realize that the fold device is arranged, so that the effect of collecting dust can be increased, the service life is prolonged, the replacement frequency is reduced, and the cost of labor and the like is reduced; meanwhile, the folding device can increase the filtering area and improve the problem of small air volume in unit time, thereby realizing small resistance and reducing the energy consumption of the air conditioner; the device is provided with the built-in skeleton device, so that the wrinkle shape and the length can be freely adjusted, and the device can be freely adapted to various use scenes.

Description

Multi-layer multi-step air bag purification filter bag
Technical Field
The invention relates to a filtering device, in particular to a multilayer multi-step air bag purifying filter bag.
Background
With the progress of electronic technology, electrical equipment becomes an indispensable daily use in life, wherein equipment for converting electric energy into wind energy has become a common auxiliary equipment in daily life, such as dust collectors, air conditioners and the like, and comprises a part of equipment or ventilation equipment which needs to absorb wind power for work, air dust is easy to accumulate at an air outlet for heat dissipation and work in the electrical equipment for a long time, and the equipment use is influenced over time, therefore, people can arrange a dust screen or dust cloth at the air outlet, but the dust screen has low dust-proof efficiency and cannot isolate tiny dust particles, and the dust cloth improves the dust-proof efficiency, but the service life is short, the equipment needs to be changed frequently in a short time, the use cost is high, and meanwhile, part of the dust screen and the part of the equipment shell cannot completely remove the attached dust, so as to solve the technical problems, particularly provides a new technical scheme.
Disclosure of Invention
The invention provides a multi-layer multi-step type air bag purification filter bag, which aims to solve the problems in the background technology.
The technical problem solved by the invention is realized by adopting the following technical scheme: a multi-layer multi-step type air bag purification filter bag comprises a layer A and a layer B, wherein the layer B is arranged at the bottom of the layer A, a framework A is arranged inside the layer A, a framework B is arranged at the bottom of the framework A and is in sliding connection with the framework A, and the framework B is arranged inside the layer B;
the component of the layer A is PP type non-woven fabric and PET hot-rolled non-woven fabric, and the component of the layer B is a component B;
step one, paving a framework B in a mold, then covering the framework B with each raw material in a component B according to the sequence level, and performing composite pressing to form a layer B;
laying the framework A in a mold, covering the framework A with the layer A, and performing composite pressing to form a layer B;
step three, the framework A and the framework B are connected in a sliding mode, and the layer A is installed on the surface of the layer B;
step four, adjusting the framework A and the framework B to enable the cloth surface of the layer B to be wrinkled;
and step five, consolidating the combination of the layer A and the layer B again, and enabling the combination not to be separated easily through hot pressing or compaction operation of ultrasonic indentation forming.
The layer B comprises a cloth body and folds, wherein the cloth body is provided with a plurality of folds, and the folds are V-shaped, water drop-shaped and L-shaped.
The fold include lateral wall, opening and end pocket, lateral wall symmetrical arrangement is on the cloth body, be equipped with opening and opening between the lateral wall and be located the inside of cloth body, the bottom of lateral wall is equipped with end pocket.
Skeleton A include mobile jib A, mounting A, auxiliary rod A and turn over a subassembly A, skeleton A's inside is equipped with a plurality of mobile jib A, is equipped with a plurality of auxiliary rod A on one side of mobile jib A, is equipped with mounting A on auxiliary rod A's the both ends, mounting A is connected with mobile jib A, mobile jib A between be equipped with and turn over a subassembly A, mobile jib A include round bar and slider, the bottom of round bar is equipped with a plurality of slider, be sliding connection between slider and the skeleton B.
Skeleton B include mobile jib B, turn over a subassembly B, mounting B and auxiliary rod B, skeleton B's inside is equipped with a plurality of mobile jib B, is equipped with a plurality of auxiliary rod B on one side of mobile jib B, is equipped with mounting B on auxiliary rod B's the both ends, mounting B is connected with mobile jib B, mobile jib B between be equipped with and turn over a subassembly B, mobile jib B include base and spout, the inside of base is equipped with the spout, be sliding connection between spout and the skeleton A.
The auxiliary rod B comprises a connecting rod A, a rotating body and a connecting rod B, the connecting rod A is arranged in the auxiliary rod B, the rotating body is arranged at two ends of the connecting rod A, the connecting rod B is arranged at one end of the rotating body, and the other end of the connecting rod B is connected with the fixing part B.
The turnover assembly A is the same as the turnover assembly B in structure, the turnover assembly B comprises a connecting rod A and a rotating body, the rotating body is arranged at two ends of the connecting rod A, and the other end of the rotating body is connected with the main rod B.
The component B comprises a first layer, a second layer, a third layer and a fourth layer, wherein the weight parts of the components are that the first layer is 2-6 parts, the second layer is 1-5 parts, the third layer is 3-5 parts, and the fourth layer is 1-3 parts.
The first layer is ES or PP + PET composite non-woven fabric; the second layer is melt-blown non-woven fabric; the third layer is ES or PP + PET composite non-woven fabric; the fourth layer is PP type or PET non-woven fabric.
The combination sequence of the components in the component B comprises the following categories;
class one, a first layer, a second layer, a third layer and a fourth layer;
class two, first, second and third layers;
class three, fourth layer, second layer and fourth layer;
category four, first layer, second layer;
category five, second tier.
The invention has the beneficial effects that: the fold device is arranged, so that the effect of collecting dust can be increased, the service life is prolonged, the replacement frequency is reduced, and the cost of labor and the like is reduced; meanwhile, the folding device can increase the filtering area and improve the problem of small air volume in unit time, thereby realizing small resistance and reducing the energy consumption of the air conditioner; the device is provided with the built-in skeleton device, so that the wrinkle shape and the length can be freely adjusted, and the device can be freely adapted to various use scenes.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the structure of the B layer of the present invention;
FIG. 3 is a side view of the B layer of the present invention;
FIG. 4 is a schematic structural view of a pleat in accordance with the present invention;
FIG. 5 is a schematic structural view of the skeleton A of the present invention;
fig. 6 is a schematic structural view of the boom a of the present invention;
FIG. 7 is a schematic structural view of the skeleton B of the present invention;
fig. 8 is a schematic view of the structure of the boom B of the present invention;
FIG. 9 is a schematic view of the construction of a sub-rod B of the present invention;
fig. 10 is a schematic structural diagram of a fifth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 to 9, the multi-layer multi-step air bag purification filter bag comprises a layer a 1 and a layer B2, wherein the layer B2 is arranged at the bottom of the layer a 1, a framework a7 is arranged inside the layer a 1, a framework B8 is arranged at the bottom of the framework a7, the framework B8 is slidably connected with the framework a 3578, and the framework B8 is arranged inside the layer B2;
the component of the A layer 1 is PP type non-woven fabric and PET hot-rolled non-woven fabric, and the component of the B layer 2 is component B;
step one, paving a framework B8 in a mold, then covering the framework B8 with each raw material in the component B according to the sequence level, and performing composite pressing to form a layer B2;
secondly, laying the framework A7 in a mould, covering the framework A7 with the layer A1, and performing composite pressing to form a layer B2;
step three, the framework A7 is connected with the framework B8 in a sliding mode, and the layer A1 is installed on the surface of the layer B2;
step four, adjusting the framework A7 and the framework B8 to crease the cloth surface of the B layer 8;
and step five, consolidating the combination of the layer A1 and the layer B2 again, and enabling the combination not to be separated easily through compaction operation of hot pressing or ultrasonic indentation forming.
The layer B2 comprises a cloth body 201 and folds 202, wherein the cloth body 201 is provided with a plurality of folds 202, and the folds 202 are V-shaped, water drop-shaped and L-shaped.
The wrinkles 202 comprise side walls 2020, openings 2021 and bottom pockets 2022, the side walls 2020 are symmetrically arranged on the cloth body 201, the openings 2021 are formed between the side walls 2020, the openings 2021 are located inside the cloth body 201, and the bottom of the side walls 2020 is provided with the bottom pockets 2022.
Skeleton A7 include mobile jib A700, mounting A701, vice pole A702 and turn over a subassembly A703, the inside of skeleton A7 is equipped with a plurality of mobile jib A700, is equipped with a plurality of vice pole A702 on one side of mobile jib A700, is equipped with mounting A701 on the both ends of vice pole A702, mounting A701 is connected with mobile jib A700, mobile jib A700 between be equipped with a subassembly A703 that turns over, mobile jib A700 include circle pole 7001 and slider 7002, circle pole 7001's bottom is equipped with a plurality of slider 7002, be sliding connection between slider 7002 and the skeleton B8.
Skeleton B8 include mobile jib B800, turn over an subassembly B801, mounting B802 and vice pole B803, skeleton B8's inside is equipped with a plurality of mobile jib B800, is equipped with a plurality of vice pole B803 on one side of mobile jib B800, is equipped with mounting B802 on the both ends of vice pole B803, mounting B802 and mobile jib B800 are connected, mobile jib B800 between be equipped with and turn over a subassembly B801, mobile jib B800 include base 8001 and spout 8002, the inside of base 8001 is equipped with spout 8002, be sliding connection between spout 8002 and skeleton A7.
The subsidiary rod B803 comprises a connecting rod A8030, a rotating body 8031 and a connecting rod B8032, the inside of the subsidiary rod B803 is provided with a plurality of connecting rods A8030, the two ends of the connecting rods A8030 are provided with the rotating body 8031, one end of the rotating body 8031 is provided with the connecting rod B8032, and the other end of the connecting rod B8032 is connected with the fixing piece B802.
The structure of the turnover assembly a703 is the same as that of the turnover assembly B801, the turnover assembly B801 includes a connecting rod a8030 and a rotating body 8031, the two ends of the connecting rod a8030 are provided with the rotating body 8031, and the other end of the rotating body 8031 is connected with the main rod B800.
In the use process, the device is arranged at an air inlet (air outlet) through a mounting device on the layer A1, and meanwhile, the opening 2021 faces one side of the air inlet (air outlet), after the air conditioner is started, dust in the air can enter the bottom pocket 2022 through the opening 2021 in the operation process to be accumulated and collected, under the influence of wind power, particles on the cloth body 201 can not be adhered to the surface along with the passage of time and can uniformly enter the bottom pocket 2022 to be accumulated, the use time of the filtering device is increased due to the increase of a dust accumulation area, the filtering screen does not need to be changed frequently, the use cost is saved, and meanwhile, folds are respectively in a V shape, a water drop shape and an L shape according to the use scene and the use time limit required by a user, wherein the accumulation capacity of the water drop shape is relatively high.
The shape of fold is V type, water droplet type and L type, it can rely on skeleton B8 to advance in proper time adjustment, comprises a plurality of connecting rod A8032, rotor 8031 and connecting rod B8032 in the auxiliary lever B803, utilizes the centre of a circle of rotor 8031 to rotate between each subassembly, carries out the swing of the body of rod, makes it form V type, water droplet type or L type, wherein, can have V type, water droplet type and L type simultaneously in the inside of same auxiliary lever B803.
In the process, except that the layer B2 is vertically folded, the layer A1 and the layer B2 are adapted to the installation lengths of various air inlets (air outlets) to be adjusted under the action of the folding assembly A703 and the folding assembly B801, namely, the layers A and the layer B2 are horizontally folded, so that the filtering performance is further improved, dust is blocked and collected, and in the process, the framework A7 and the framework B8 are respectively adjusted through the sliding connection of the sliding groove 8002 and the sliding block 7002, so that the device can be used more freely.
The component B comprises a first layer 3, a second layer 4, a third layer 5 and a fourth layer 6, wherein the weight parts of the components are that the first layer 3 is 2-6 parts, the second layer 4 is 1-5 parts, the third layer 5 is 3-5 parts, and the fourth layer 6 is 1-3 parts.
The first layer 3 is ES or PP + PET composite non-woven fabric; the second layer 4 is melt-blown non-woven fabric; the third layer 5 is ES or PP + PET composite non-woven fabric; the fourth layer 6 is PP type or PET non-woven fabric.
The combination sequence of the components in the component B comprises the following categories;
class one, first layer 3, second layer 4, third layer 5, and fourth layer 6;
class two, first layer 3, second layer 4, and third layer 5;
class three, fourth layer 6, second layer 4, and fourth layer 6;
category four, first layer 3, second layer 4;
category five, second layer 4.
Example one
The component B comprises a first layer 3, a second layer 4, a third layer 5 and a fourth layer 6, wherein the weight parts of the components are that the first layer 3 is 2 parts, the second layer 4 is 1 part, the third layer 5 is 3 parts, and the fourth layer 6 is 1 part.
Example two
The component B comprises a first layer 3, a second layer 4, a third layer 5 and a fourth layer 6, wherein the components comprise, by weight, 4 parts of the first layer 3, 3 parts of the second layer 4, 4 parts of the third layer 5 and 2 parts of the fourth layer 6.
EXAMPLE III
The component B comprises a first layer 3, a second layer 4, a third layer 5 and a fourth layer 6, wherein the first layer 3, the second layer 4, the third layer 5 and the fourth layer 6 are 6 parts by weight, 5 parts by weight and 3 parts by weight of the fourth layer 6.
The above examples all employ the following methods;
firstly, placing all raw materials in a component B according to a sequence level, and performing composite pressing to form a layer B2;
and step two, folding the cloth surface of the B layer 2 after composite pressing.
The experiments were performed in the following categories, grouped together;
class one, first layer 3, second layer 4, third layer 5, and fourth layer 6;
class two, first layer 3, second layer 4, and third layer 5;
class three, fourth layer 6, second layer 4, and fourth layer 6;
category four, first layer 3, second layer 4;
category five, second layer 4.
Referring to Table 1 below, the results are rated from 1 to 10 points, the composite points including filtration performance and service life duration.
Class one Class two Class three Category four Category five
Example one 4.9 3.8 4.4 3.0 2.0
Example two 6.2 5.5 5.8 4.9 3.0
EXAMPLE III 8.0 7.5 7.8 7.0 4.0
TABLE 1
The following results can be obtained by the above three embodiments, and the filtering device with the best filtering performance and the longest service life can be obtained by the formula under the condition of the third embodiment and the combination mode of the first category
EXAMPLE five
Referring to fig. 10, according to the needs of use, suppress the filter cloth in advance on each member of skeleton A7, after skeleton B8 is suppressed similarly, connect again, form "well" word rack, can regard as air filter like this, when adsorbing dust particle, ensure the flow of ventilation, can be general in the installation and the needs of use of the air intake of other equipment, air outlet simultaneously.
The device can realize that the fold device is arranged, so that the effect of collecting dust can be increased, the service life is prolonged, the replacement frequency is reduced, and the cost of labor and the like is reduced; meanwhile, the folding device can increase the filtering area and improve the problem of small air volume in unit time, thereby realizing small resistance and reducing the energy consumption of the air conditioner; the device is provided with the built-in skeleton device, so that the wrinkle type and the length can be freely adjusted, and the device can be freely adapted to various use scenes.
In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a multilayer multi-step formula wind package purifies filter bag which characterized in that: the device comprises a layer A (1) and a layer B (2), wherein the layer B (2) is arranged at the bottom of the layer A (1), a framework A (7) is arranged in the layer A (1), a framework B (8) is arranged at the bottom of the framework A (7) and is in sliding connection with the framework A (7), and the framework B (8) is arranged in the layer B (2);
the component of the A layer (1) is PP type non-woven fabric and PET hot-rolled non-woven fabric, and the component of the B layer (2) is component B;
the preparation method of the device comprises the following steps;
step one, laying a framework B (8) in a mold, then covering the framework B (8) with each raw material in the component B according to the sequence level, and performing composite pressing to form a layer B (2);
step two, paving the framework A (7) in a mold, then covering the framework A (7) with the layer A (1), and performing composite pressing to form a layer B (2);
step three, the framework A (7) is connected with the framework B (8) in a sliding mode, and the layer A (1) is installed on the surface of the layer B (2);
step four, adjusting the framework A (7) and the framework B (8) to wrinkle the cloth surface of the layer B (8);
and fifthly, consolidating the combination of the layer A (1) and the layer B (2) again, and enabling the combination not to be separated easily through compaction operation of hot pressing or ultrasonic indentation forming.
2. The multi-layered multi-step bellows bag purification cartridge of claim 1, further comprising: the B layer (2) comprises a cloth body (201) and folds (202), a plurality of folds (202) are arranged on the cloth body (201), and the folds (202) are V-shaped, water drop-shaped and L-shaped.
3. The multi-layered multi-step bellows bag purification cartridge of claim 2, further comprising: the wrinkles (202) comprise side walls (2020), openings (2021) and bottom pockets (2022), the side walls (2020) are symmetrically arranged on the cloth body (201), the openings (2021) are formed between the side walls (2020), the openings (2021) are located inside the cloth body (201), and the bottom of the side walls (2020) is provided with the bottom pockets (2022).
4. The multi-layered multi-step wind bag purification filter bag according to claim 1, wherein: skeleton A (7) including mobile jib A (700), mounting A (701), vice pole A (702) and turn over a subassembly A (703), the inside of skeleton A (7) is equipped with a plurality of mobile jib A (700), is equipped with a plurality of vice pole A (702) on one side of mobile jib A (700), is equipped with mounting A (701) on the both ends of vice pole A (702), mounting A (701) are connected with mobile jib A (700), mobile jib A (700) between be equipped with and turn over a subassembly A (703), mobile jib A (700) including circle pole (7001) and slider (7002), the bottom of circle pole (7001) is equipped with a plurality of slider (7002), be sliding connection between slider (7002) and skeleton B (8).
5. The multi-layered multi-step bellows bag purification cartridge of claim 1, further comprising: skeleton B (8) including mobile jib B (800), turn over an subassembly B (801), mounting B (802) and vice pole B (803), the inside of skeleton B (8) is equipped with a plurality of mobile jib B (800), be equipped with a plurality of vice pole B (803) on one side of mobile jib B (800), be equipped with mounting B (802) on the both ends of vice pole B (803), mounting B (802) are connected with mobile jib B (800), mobile jib B (800) between be equipped with and turn over a subassembly B (801), mobile jib B (800) including base (8001) and spout (8002), the inside of base (8001) is equipped with spout (8002), be sliding connection between spout (8002) and skeleton A (7).
6. The multi-layered multi-step bellows bag purification cartridge of claim 5, wherein: the auxiliary rod B (803) comprises a connecting rod A (8030), a rotating body (8031) and a connecting rod B (8032), the inside of the auxiliary rod B (803) is provided with a plurality of connecting rods A (8030), the two ends of the connecting rod A (8030) are provided with the rotating body (8031), one end of the rotating body (8031) is provided with the connecting rod B (8032), and the other end of the connecting rod B (8032) is connected with the fixing part B (802).
7. The multi-layered multi-step air bag purification filter bag as claimed in claims 4, 5 and 6, wherein: the structure of turnover subassembly A (703) and turnover subassembly B (801) be the same, turnover subassembly B (801) includes connecting rod A (8030) and rotor (8031), and the both ends of connecting rod A (8030) are equipped with rotor (8031), and the other end and the mobile jib B (800) of rotor (8031) are connected.
8. The multi-layered multi-step bellows bag purification cartridge of claim 1, further comprising: the component B comprises a first layer (3), a second layer (4), a third layer (5) and a fourth layer (6), wherein the weight parts of the components are that the first layer (3) is 2-6 parts, the second layer (4) is 1-5 parts, the third layer (5) is 3-5 parts, and the fourth layer (6) is 1-3 parts.
9. The multi-layered multi-step wind bag purification filter bag according to claim 1, wherein: the first layer (3) is ES or PP + PET composite non-woven fabric; the second layer (4) is melt-blown non-woven fabric; the third layer (5) is ES or PP + PET composite non-woven fabric; the fourth layer (6) is PP type or PET non-woven fabric.
10. The multi-layered multi-step bellows bag purification cartridge of claim 1, further comprising: the combination sequence of the components in the component B comprises the following categories;
class one, a first layer (3), a second layer (4), a third layer (5), and a fourth layer (6);
class two, a first layer (3), a second layer (4), and a third layer (5);
class three, a fourth layer (6), a second layer (4), and a fourth layer (6);
class four, a first layer (3), a second layer (4);
category five, second layer (4).
CN202210753778.4A 2022-06-28 2022-06-28 Multilayer multi-step type wind bag purifying filter bag Active CN115006926B (en)

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CN213527639U (en) * 2020-09-30 2021-06-25 南京国能环保有限公司 Multiple-effect combined type filter core
CN214389256U (en) * 2020-12-18 2021-10-15 深圳市斗方科技有限公司 Polylactic acid PLA is applied to high-efficient low resistance filtering material
CN216653792U (en) * 2021-12-31 2022-06-03 四川德胜集团钒钛有限公司 Collecting cover of bag-type dust collector

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Publication number Priority date Publication date Assignee Title
CN2587495Y (en) * 2002-06-13 2003-11-26 罗进南 Dust capacity large magin raised intermediate and high effcient air filter core and filter paper
KR20100030420A (en) * 2008-09-10 2010-03-18 한국에너지기술연구원 Combination type gas filter
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