Primary air filter for large-particle waste gas

Abstract

The utility model belongs to the technical field of air filtration, and particularly relates to a primary air filter for large-particle waste gas, which comprises an outer cylinder body, a filter cartridge is arranged in the outer cylinder body, a cover plate I is arranged at the upper end of the outer cylinder body, a cover plate II is arranged at the lower end of the outer cylinder body, a telescopic sleeve I is connected between the cover plate I and the outer cylinder body, and the telescopic sleeve I is connected with the outer cylinder body. A telescopic sleeve II is connected between the cover plate II and the outer cylinder body; an air inlet cylinder is fixedly arranged on the inner side of the first cover plate, the lower end of the air inlet cylinder is inserted into a filter cylinder, the lower end of the filter cylinder is arranged on a dust receiving cylinder, the lower end of the dust receiving cylinder is fixedly connected to the second cover plate, and an exhaust cylinder is connected to the side face of the outer cylinder. The outer cylinder body, the first cover plate and the second cover plate are slidably connected to the connecting rod, the filter cylinder can shake up and down by knocking the first cover plate, filtered water in the filter cylinder can be shaken off, and the purpose of cleaning the filter cylinder is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air filter technical field, specifically relates to a primary air filter for large particle waste gas. BACKGROUND

[0002] Air filter device as core purification technology is widely used in medical, industrial, traffic, home and other fields, and its technical development is directly related to human health and production safety, an air filter system is usually divided into multiple levels, and air is filtered to the required cleanliness through purification of each level, and the primary filter is usually used for filtering large particles in the air, and then the air is introduced into the next level of filter structure for more fine filtering, the particles filtered by the primary filter not only have the characteristics of large size, but also have the characteristics of large quantity, which is easy to block the filter screen and needs to be replaced or cleaned frequently to avoid affecting the filtering efficiency due to filter screen blockage.

[0003] As a kind of novel clean air collection system provided in Chinese patent announcement No.CN216703739U, it includes shell and gas storage tank, filter screen is arranged in shell, filter screen is arranged on the upper end of shell, filter screen can isolate large particle impurities outside shell;First fan is arranged below filter screen, first fan can generate negative pressure in shell and suck ambient air from filter screen;Primary filter is arranged below fan, primary filter can preliminarily filter air flow blown by first fan;High-efficiency filter is arranged below primary filter, second fan is arranged below high-efficiency filter;Control module is electrically connected with first fan and second fan.Compared with prior art, the novel clean air collection system is provided with primary filter, high-efficiency filter and multiple fans, and air flow in shell is quickly filtered through primary filter and high-efficiency filter by multiple fans.

[0004] In the prior art as described in the above patent, although multiple filter structures are arranged to filter air, the primary filter is not convenient to replace or clean, so that a large amount of large particles adhere to the primary filter, affecting the filtering efficiency of air. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a primary air filter for large particle waste gas, which can shake off large particles adhering to the filter cartridge by up-and-down shaking, achieve the purpose of cleaning the filter, and improve the service life of the filter cartridge.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] The utility model provides a primary air filter for large particle exhaust gas, including the outer cylinder, the inside of outer cylinder is provided with filter cartridge, the upper end of outer cylinder is provided with cover plate no.

[0008] In a preferred embodiment, the side of the outer cylinder is further fixedly connected with a connecting frame.

[0009] In a preferred embodiment, the dust collecting cylinder and the filter cartridge are both open at the top and bottom, and the lower end of the filter cartridge is clamped to the upper end of the dust collecting cylinder.

[0010] In a preferred embodiment, the inner side of the cover plate no.

[0011] In a preferred embodiment, the lower end of the air inlet cylinder is provided with a baffle, and the air inlet cylinder is made of hard material.

[0012] In a preferred embodiment, one end of the connecting rod is in the shape of a "T", the other end of the connecting rod is provided with a plug, and the two ends of the connecting rod are respectively sleeved with a spring no.

[0013] The utility model achieves the following technical effects:

[0014] The filter cartridge can be shaken up and down by knocking the cover plate no. This can shake off the filtered particles in the filter cartridge, clean the filter cartridge, avoid excessive large particles on the filter cartridge affecting the filtering efficiency, and most importantly, the filter cartridge does not need to be disassembled during cleaning, reducing the complexity of disassembly and improving the service life of the filter cartridge.

[0015] The cover plate no. and the cover plate no. are connected to the outer cylinder through the telescopic sleeve no. and the telescopic sleeve no. respectively, so that the cover plate no. and the cover plate no. can move up and down relative to the outer cylinder while ensuring the airtightness of the space formed between the cover plate no. and the cover plate no. and the outer cylinder, avoiding air leakage. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structure schematic diagram of the utility model.

[0017] Figure 2 is a schematic diagram of the half-sectioned isometric structure of the utility;

[0018] Figure 3 is a schematic diagram of the structure between the filter cartridge and the cover plate two and its accessory structure of the utility;

[0019] Figure 4 is a schematic diagram of the enlarged structure of the connection between the connecting frame and the outer cylinder of the utility.

[0020] In the drawings, the components represented by each reference numeral are listed as follows:

[0021] 1, outer cylinder; 2, filter cartridge; 3, cover plate one; 4, cover plate two; 5, air inlet cylinder; 6, air outlet cylinder; 7, connecting rod; 11, connecting frame; 31, telescopic sleeve one; 41, telescopic sleeve two; 42, opening; 43, blocking plate; 44, dust collecting cylinder; 51, baffle; 71, spring one; 72, spring two; 73, blockage. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility more obvious and easy to understand, the specific embodiments of the utility will be described in detail below in conjunction with the drawings of the specification.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility, but the utility can also be practiced in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the utility, therefore the utility is not limited by the specific embodiments disclosed below.

[0024] Secondly, "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the utility. "In a preferred embodiment" appearing in different places in this specification does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0025] Thirdly, the utility is described in detail in conjunction with the schematic diagram, and in the detailed description of the embodiments of the utility, the sectional view of the device structure will be partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the utility here. In addition, the three-dimensional spatial dimensions including length, width and depth should be included in actual manufacturing.

[0026] Please refer to the drawings Figure 1 and Figure 2The utility model provides a kind of primary air filter for large particle waste gas, including outer cylinder 1, the inside of outer cylinder 1 is provided with filter cartridge 2, the upper end of outer cylinder 1 is provided with cover plate one 3, the lower end of outer cylinder 1 is provided with cover plate two 4, cover plate one 3 is connected with telescopic sleeve one 31 between outer cylinder 1, cover plate two 4 is connected with telescopic sleeve two 41 between outer cylinder 1;The inside of cover plate one 3 is fixedly provided with air inlet cylinder 5, the lower end of air inlet cylinder 5 is inserted into filter cartridge 2, the lower end of filter cartridge 2 is arranged on dust collecting cylinder 44, the lower end of dust collecting cylinder 44 is fixedly connected on cover plate two 4, the side of outer cylinder 1 is connected with exhaust cylinder 6, outer cylinder 1 and cover plate one 3 and cover plate two 4 are slidably connected on connecting rod 7 respectively;

[0027] In this embodiment, when filtering air, the air to be filtered is discharged into the inside of filter cartridge 2 through air inlet cylinder 5, and the air enters outer cylinder 1 through the filtration of filter cartridge 2, and then is discharged to the next filtering device through exhaust cylinder 6 for filtration, so that the primary filtration of air is completed, and the large particles contained in the air are left in the inner cylinder of filter cartridge 2; when cleaning the large particles filtered in filter cartridge 2, the filter cartridge 2 is shaken by knocking cover plate one 3, so that the particles adhered to the filter cartridge 2 are shaken off into dust collecting cylinder 44, and the cleaning of filter cartridge 2 is completed.

[0028] Specifically, when cleaning filter cartridge 2, cover plate one 3 moves downward with air inlet cylinder 5 under the action of knocking force by knocking cover plate one 3, and air inlet cylinder 5 moves downward against filter cartridge 2, and dust collecting cylinder 44 and cover plate two 4 move downward against filter cartridge 2, and spring one 71 is compressed when cover plate one 3 moves downward, the knocking force is converted into the elastic force of spring one 71 by compressing spring one 71, and the above-mentioned components move downward and compress spring one 71 after the knocking force is converted into the elastic force of spring one 71, and then the above-mentioned components move upward again by knocking cover plate one 3, and the components move upward again, so that filter cartridge 2 shakes up and down by knocking multiple times, and the dust is shaken off into dust collecting cylinder 44, and the purpose of cleaning is achieved.

[0029] In addition, telescopic sleeve one 31 and telescopic sleeve two 41 are both cylindrical structures, and can be made of rubber or other materials that can be sealed, and can be telescoped up and down to meet the needs of the upward and downward movement between cover plate one 3 and outer cylinder 1 and between cover plate two 4 and outer cylinder 1, and can also meet the needs of the sealing connection between outer cylinder 1 and cover plate one 3 and cover plate two 4.

[0030] The side of outer cylinder 1 is also fixedly connected with connecting frame 11.

[0031] In this embodiment, the outer cylinder 1 is fixedly connected to the support through the connecting frame 11, thereby meeting the installation requirement of the primary filtering device.

[0032] As shown in Figure 2 and Figure 3 , the dust receiving cylinder 44 and the filter cylinder 2 are both open at the top and bottom, and the lower end of the filter cylinder 2 is clamped to the upper end of the dust receiving cylinder 44.

[0033] In this embodiment, the open top and bottom structure of the filter cylinder 2 allows the lower end of the filter cylinder 2 to be inserted into the dust receiving cylinder 44, so that the air is filtered from the inside to the outside in the filter cylinder 2, and the filtered particulate matter remains in the inner cylinder of the filter cylinder 2. The lower end of the filter cylinder 2 can be clamped in the dust receiving cylinder 44, and the open structure of the lower end of the filter cylinder 2 facilitates the falling of the filtered particulate matter into the dust receiving cylinder 44 through shaking, thereby facilitating the discharge of the particulate matter.

[0034] An opening 42 is formed on the inner side of the cover plate 4 corresponding to the lower end opening of the dust receiving cylinder 44, and a sealing plate 43 is arranged on the inner side of the opening 42.

[0035] In this embodiment, the large particulate matter falling into the dust receiving cylinder 44 can be discharged downward through the opening 42, and the opening 42 is sealed by the sealing plate 43 to avoid the filtered gas from being exposed from the opening 42. When discharging the filtered particulate matter, the clamping buckle on the sealing plate 43 is first released, the sealing plate 43 is opened, and then the particulate matter is discharged from the opening 42. After the discharge, the sealing plate 43 is sealed at the opening 42.

[0036] As shown in Figure 2 , a baffle 51 is arranged on the lower end side of the air inlet cylinder 5, and the material of the air inlet cylinder 5 is a hard material.

[0037] In this embodiment, the air inlet cylinder 5 is made of a hard material to avoid deformation after being inserted into the filter cylinder 2 and causing air leakage from the interface. In addition, a sealing ring is arranged at the upper end opening of the filter cylinder 2 to improve the airtightness between the filter cylinder 2 and the air inlet cylinder 5, thereby preventing air leakage. The use of the baffle 51 can push the filter cylinder 2 downward when the air inlet cylinder 5 moves downward, thereby achieving the shaking cleaning of the filter cylinder 2.

[0038] As shown in Figure 1 and Figure 4 , one end of the connecting rod 7 is in a "T" shape structure, the other end of the connecting rod 7 is provided with a plug 73, and the two ends of the connecting rod 7 are respectively sleeved with a spring one 71 and a spring two 72. The two ends of the spring one 71 are respectively abutted against the outer cylinder 1 and the cover plate one 3, and the two ends of the spring two 72 are respectively abutted against the outer cylinder 1 and the cover plate two 4.

[0039] In this embodiment, the role of the connecting rod 7 is to make the outer cylinder 1 and the cover plate one 3 and the cover plate two 4 installed on the same vertical line, so that the cover plate one 3 and the cover plate two 4 can only move vertically up and down, avoiding the cover plate one 3 and the cover plate two 4 from being twisted left and right, and the connecting rod 7 is in a "T" shape structure, which can conveniently pass through the connecting rod 7 from one side of the cover plate one 3 or one side of the cover plate two 4 in sequence, and the other end is blocked by the plug 73, and the plug 73 is fixed by the bolt, so that the maximum distance between the cover plate one 3 and the cover plate two 4 is the length of the connecting rod 7, avoiding the cover plate one 3 and the cover plate two 4 from being pulled apart from the telescopic sleeve one 31 or the telescopic sleeve two 41 to cause damage, and two same springs one 71 and springs two 72 are arranged on both sides of the cover plate one 3 and the cover plate two 4, which can keep the same distance between the cover plate one 3 and the cover plate two 4 and the outer cylinder 1, and also can realize the shaking effect of knocking the filter cartridge 2.

[0040] The working principle of the utility model is: when filtering air, the air to be filtered is discharged into the inside of the filter cartridge 2 through the air inlet cylinder 5, the air enters the outer cylinder 1 through the filtering of the filter cartridge 2, and then is discharged to the next stage of filtering device through the air outlet cylinder 6, at this time, the primary filtration of the air is completed, and the large particles contained in the air are left in the inner cylinder of the filter cartridge 2, when cleaning the large particles filtered in the filter cartridge 2, the filter cartridge 2 is shaken by knocking the cover plate one 3, so that the particles attached to the filter cartridge 2 are shaken off into the dust collecting cylinder 44, and the cleaning work of the filter cartridge 2 is completed.

[0041] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the art, without departing from the principle of the utility model, some improvements and refinements can be made, which should also be regarded as the protection range of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the art, unless otherwise specified and limited.

Claims

1. A primary air filter for large-particle exhaust gas, characterized by: Including outer cylinder (1), the inside of outer cylinder (1) is provided with filter cartridge (2), the upper end of outer cylinder (1) is provided with cover plate one (3), the lower end of outer cylinder (1) is provided with cover plate two (4), cover plate one (3) is connected with telescopic sleeve one (31) between cover plate one (3) and outer cylinder (1), cover plate two (4) is connected with telescopic sleeve two (41) between cover plate two (4) and outer cylinder (1); The inner side of cover plate one (3) is fixedly provided with air inlet cylinder (5), the lower end of air inlet cylinder (5) is inserted into filter cartridge (2), the lower end of filter cartridge (2) is arranged on dust receiving cylinder (44), the lower end of dust receiving cylinder (44) is fixedly connected on cover plate two (4), the side of outer cylinder (1) is connected with exhaust cylinder (6), outer cylinder (1) and cover plate one (3) and cover plate two (4) are respectively slidably connected on connecting rod (7).

2. A primary air filter for large particles of exhaust gas according to claim 1, characterized in that: The side of outer cylinder (1) is further fixedly connected with connecting frame (11).

3. The primary air filter for large particles of exhaust gas according to claim 1, characterized by: Dust receiving cylinder (44) and filter cartridge (2) are both upper and lower opening cylinder structure, the lower end of filter cartridge (2) is clamped in the upper end of dust receiving cylinder (44).

4. The primary air filter for large particles of exhaust gas according to claim 1, characterized by: The inner side of cover plate two (4) is provided with opening (42) corresponding to the lower end opening of dust receiving cylinder (44), the inner side of opening (42) is provided with sealing plate (43).

5. The primary air filter for large particles of exhaust gas according to claim 1, characterized by: The lower end side of air inlet cylinder (5) is provided with baffle (51), the material of air inlet cylinder (5) is hard material.

6. A primary air filter for large particles of exhaust gas according to claim 1, characterized in that: One end of connecting rod (7) is "T" shaped structure, the other end of connecting rod (7) is provided with plug (73), both ends of connecting rod (7) are respectively sleeved with spring one (71) and spring two (72), both ends of spring one (71) are respectively abutted on outer cylinder (1) and cover plate one (3), both ends of spring two (72) are respectively abutted on outer cylinder (1) and cover plate two (4).

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