Dust collector

Abstract

The utility model provides a dust collector and relates to the technical field of dust collectors. The dust collector comprises an outer barrel, a filtering assembly and a flow guide piece. A first containing space is formed in the outer barrel. The filter assembly comprises an air inlet pipe, a filter screen and a storage device which are connected in sequence; the storage device is arranged at the bottom of the first containing space and located below the filter screen, and the storage device is used for collecting substances filtered out by the filter screen. The flow guide part is arranged in the first accommodating space and surrounds the filtering assembly; the flow guide part is separated from the filtering assembly, and is separated from the bottom wall and the side wall of the first accommodating space; the thickness of the flow guide piece is gradually increased from top to bottom, and the section of at least part, close to the bottom wall of the first containing space, of the flow guide piece is drop-shaped. The dust collector provided by the utility model can solve the problem of poor collection effect of small particulate matters in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of dust collector technology, and more specifically, to a dust collector. Background Technology

[0002] Low-mesh filter bags are widely used in various industrial sites such as steel plants, cement plants, chemical plants, and cotton mills due to their good air permeability and filtration of large dust particles. Although they intercept large dust particles, fine dust particles smaller than a certain mesh size will escape into the working environment and affect the health of workers. Utility Model Content

[0003] The technical problem solved by this utility model is how to improve the existing dust collection device's poor effect on collecting fine particles, which makes fine particles easily disperse into the working environment and affect the health of workers.

[0004] The embodiments of this utility model can be implemented as follows:

[0005] This utility model provides a dust collector, comprising:

[0006] The outer barrel has a primary storage space inside.

[0007] The filtration assembly includes an air intake pipe, a filter screen, and a reservoir connected in sequence; the reservoir is located at the bottom of the first receiving space and below the filter screen, and the reservoir is used to collect the substances filtered out by the filter screen.

[0008] A flow guide is disposed in the first accommodating space and arranged around the filter assembly; the flow guide is spaced apart from the filter assembly and spaced apart from the bottom wall and side wall of the first accommodating space; the thickness of the flow guide gradually increases from top to bottom, and at least a portion of the cross-section of the flow guide near the bottom wall of the first accommodating space is teardrop-shaped.

[0009] Optionally, the flow guide includes a first flow guide portion and a second flow guide portion; the first flow guide portion is disposed above the second flow guide portion, and both the first flow guide portion and the second flow guide portion are arranged around the filter assembly; the cross-section of the second flow guide portion is teardrop-shaped, and the top of the first flow guide portion is bent away from the filter assembly and forms a downward opening.

[0010] Optionally, the distance between the second flow guide and the filter assembly is equal to the distance between the second flow guide and the outer barrel.

[0011] Optionally, the second flow guide portion forms a vertical first flow guide surface on the side near the filter assembly; the second flow guide portion forms an inclined second flow guide surface on the side near the outer barrel, and the first flow guide surface and the second flow guide surface form an acute angle.

[0012] Optionally, the acute angle between the first guide surface and the second guide surface ranges from 10° to 30°.

[0013] Optionally, the dust collector further includes a support foot connected between the bottom of the flow guide and the bottom wall of the first accommodating space to support the flow guide.

[0014] Optionally, the dust collector further includes an exhaust hood, which is connected to the outside of the outer barrel and arranged around the outer barrel, and is located at the opening of the first accommodating space; the side of the exhaust hood near the filter assembly forms an air vent.

[0015] Optionally, the outer barrel includes a main body and a first disassembly piece; a first notch corresponding to the storage container is formed on the main body, and the first disassembly piece is detachably inserted into the first notch; the main body and the first disassembly piece together form the first accommodating space;

[0016] The flow guide is formed with a second notch corresponding to the first notch; and the flow guide is also provided with a second detachable part, the cross section of the second detachable part being the same as the cross section of the flow guide, and the second detachable part being detachably inserted into the second notch.

[0017] Optionally, the first disassembled component and the second disassembled component are connected.

[0018] Optionally, a first sealing structure is provided between the first disassembled component and the main body;

[0019] And / or, a second sealing structure is provided between the flow guide and the second disassembly component.

[0020] The advantages of the dust collector provided by this utility model compared to the prior art include:

[0021] In this dust collector, airflow carrying particulate matter enters through the inlet pipe. As it flows through the filter screen, the filter screen filters out large particles and collects them in the storage container; some smaller particles pass through the filter screen and follow the airflow. Because a guide vane is installed in the outer barrel, and the lower part of the guide vane is teardrop-shaped (i.e., its thickness gradually increases from top to bottom), the gaps formed between the two sides of the guide vane and the inner wall of the outer barrel and the outer wall of the filter assembly are roughly the same size. This reduces the vortex formation on both sides of the guide vane, thus reducing the speed at which small particles escape from the outer barrel. This facilitates efficient collection of small particles by the outer barrel, thereby improving the technical problem in existing dust collection devices where poor collection of fine particles leads to their easy dispersion into the working environment and affecting workers' health.

[0022] Furthermore, due to the design of the first and second disassembly components, when too much particulate matter is collected in the storage container, the first and second disassembly components can be removed, thereby opening the first and second notches. This facilitates the removal of the storage container from the first and second notches, making it easier to clean the storage container. In turn, this benefits the maintenance and cleaning of the dust collector and extends its service life. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the dust collector provided in the embodiments of this application;

[0025] Figure 2 This is a cross-sectional view of the dust collector provided in the embodiments of this application;

[0026] Figure 3 This is a schematic diagram of the airflow passing through the dust collector provided in the embodiments of this application;

[0027] Figure 4 This is an exploded structural diagram of the dust collector provided in the embodiments of this application;

[0028] Figure 5 This is a schematic diagram of the exploded structure of the outer barrel provided in the embodiments of this application;

[0029] Figure 6 This is an exploded view of the guide component and the second disassembled component provided in the embodiments of this application.

[0030] Icons: Dust collector 10, outer barrel 100, first accommodating space 101, main body 110, first notch 111, first disassembled part 120, filter assembly 200, air inlet pipe 210, filter screen 220, storage container 230, guide part 300, second notch 301, first guide section 310, second guide section 320, first guide surface 321, second guide surface 322, exhaust hood 400, air outlet 410, second disassembled part 500, handle 600. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0036] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0037] Please see Figure 1 This embodiment provides a dust collector 10, which can remove dust and other particulate matter from airflow to improve air quality. Specifically, the dust collector 10 removes dust and other particulate matter from the airflow by drawing in and filtering it. Furthermore, the dust collector 10 provided in this embodiment addresses the technical problem in existing dust collection devices where the collection effect on fine particles is poor, leading to these particles easily escaping into the work environment and affecting workers' health.

[0038] Please refer to the following: Figure 1 and Figure 2In this embodiment, the dust collector 10 includes an outer barrel 100, a filter assembly 200, and a flow guide 300. The outer barrel 100 has a first receiving space 101. The filter assembly 200 includes an air inlet pipe 210, a filter screen 220, and a storage container 230 connected in sequence. The storage container 230 is located at the bottom of the first receiving space 101 and below the filter screen 220, and is used to collect the material filtered out by the filter screen 220. The air inlet pipe 210 guides the intake airflow into the filter screen 220, which filters particulate matter in the airflow. The particulate matter filtered out by the filter screen 220 is collected and stored by the storage container 230. A flow guide 300 is disposed in the first receiving space 101 and surrounds the filter assembly 200; the flow guide 300 is spaced apart from the filter assembly 200, and is also spaced apart from the bottom wall and side walls of the first receiving space 101; the thickness of the flow guide 300 gradually increases from top to bottom, and at least a portion of the cross-section of the flow guide 300 near the bottom wall of the first receiving space 101 is teardrop-shaped. The cross-section of the flow guide 300 refers to the portion of the cross-section located on one side of the central axis, as intercepted by a plane passing through the central axis of the flow guide 300.

[0039] The airflow direction diagram after the airflow enters the dust collector 10 through the air inlet pipe 210 is shown below. Figure 3 As shown, most of the airflow flows along the thicker black arrow, that is, after the airflow enters the intake pipe 210, it is filtered by the filter screen 220. Some of the airflow flows downward to the side of the guide 300 near the filter assembly 200, and then passes through the lower part of the guide 300 and the gap between the guide 300 and the inner wall of the outer barrel 100 before being discharged; while a small portion of the airflow will be discharged directly along the thinner black arrow in a roundabout manner.

[0040] As described above, in this dust collector 10, the airflow carrying particulate matter enters through the inlet pipe 210. When it flows through the filter screen 220, the filter screen 220 filters out large particles and collects them in the storage container 230; some smaller particles pass through the filter screen 220 and follow the airflow. Because a guide member 300 is provided in the outer barrel 100, and the lower part of the guide member 300 is teardrop-shaped, that is, the thickness of this part gradually increases from top to bottom, the gaps formed by the two sides of the guide member 300 with the inner wall of the outer barrel 100 and the outer wall of the filter assembly 200 are of similar size. This reduces the vortex formed on both sides of the guide plate, thereby reducing the speed at which small particles escape from the outer barrel 100. This is beneficial for the outer barrel 100 to collect small particles efficiently, thereby improving the technical problem in the prior art where the dust collection device has poor collection effect on small particles, causing small particles to easily disperse into the working environment and affect the health of workers.

[0041] It is worth noting that the "teardrop" shape can be divided into two parts: the thickness of the upper part gradually increases from top to bottom, while the lower part forms a semicircle or fan shape, thus creating a teardrop structure; the upper part can be a trapezoid or a triangle. Of course, when the upper part is a triangle or trapezoid, it means that its two sides are straight lines; in other embodiments, the sides of the upper part can also be curved lines. Furthermore, in some embodiments, the lower half of the semicircle or fan shape can be replaced with a polygon, for example, by taking half of an octagon as the lower half, or by taking half of a dodecagon as the lower half, etc.

[0042] In addition, "at least part of the cross section is teardrop-shaped" means that the cross section of the guide 300 is teardrop-shaped as a whole, or that the part of the cross section of the guide 300 near the bottom wall of the first receiving space 101 is teardrop-shaped.

[0043] In this embodiment, the flow guide 300 includes a first flow guide portion 310 and a second flow guide portion 320; the first flow guide portion 310 is disposed above the second flow guide portion 320, and both the first flow guide portion 310 and the second flow guide portion 320 are arranged around the filter assembly 200; the cross-section of the second flow guide portion 320 is teardrop-shaped, and the top of the first flow guide portion 310 is bent away from the filter assembly 200 and forms a downward opening. Based on the teardrop-shaped second guide section 320, a first guide section 310 is added. By bending the first guide section 310 to increase its width, the eddy current generated in the upper part of the guide member 300 can be reduced. Thus, under the combined action of the first guide section 310 and the second guide section 320, the eddy current can be effectively suppressed, thereby reducing the speed at which small particles, such as cotton dust, escape from the outer barrel 100. This improves the collection effect of small particles and addresses the technical problem in the prior art where the dust collection device has a poor collection effect on fine particles, causing fine particles to easily disperse into the working environment and affect the health of workers.

[0044] Furthermore, the distance between the second guide section 320 and the filter assembly 200 is equal to the distance between the second guide section 320 and the outer barrel 100. This means that the width of the gap formed on both sides of the second guide section 320 is equal, thereby reducing the eddies formed on both sides of the second guide section 320 and improving the collection effect of small particles. It is worth noting that in some embodiments, the gap width on both sides of the second guide section 320 refers to the width of the gap formed on both sides of the position where the thickness of the second guide section 320 is the greatest.

[0045] In this embodiment, the second guide section 320 has a vertical first guide surface 321 on the side near the filter assembly 200; and an inclined second guide surface 322 on the side near the outer barrel 100, with the first guide surface 321 and the second guide surface 322 forming an acute angle. After the airflow overflows from the filter screen 220, the airflow first enters the gap on the side of the second guide section 320 near the filter assembly 200. Setting the first guide surface 321 vertically facilitates stable airflow, further avoids the generation of eddies, and achieves the purpose of reducing eddies.

[0046] Optionally, the acute angle between the first guide surface 321 and the second guide surface 322 can range from 10° to 30°. For example, the acute angle can be 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19°, 20°, 21°, 22°, 23°, 24°, 25°, 26°, 27°, 28°, 29° or 30°; preferably, the acute angle can also be 17.5°.

[0047] In this embodiment, the dust collector 10 further includes a support leg 700, which is connected between the bottom of the guide member 300 and the bottom wall of the first receiving space 101 to support the guide member 300. The support leg 700 supports the guide member 300, ensuring the overall stability of the guide member 300 and also ensuring a gap is formed between the bottom of the guide member 300 and the bottom wall of the first receiving space 101, facilitating airflow. It is worth noting that in other embodiments, the support leg 700 can also support the guide member 300 by connecting to the inner side wall of the outer barrel 100.

[0048] In this embodiment, the dust collector 10 further includes an exhaust hood 400, which is connected to the outside of the outer barrel 100 and arranged around the outer barrel 100, and is located at the opening of the first receiving space 101; an air vent 410 is formed on the side of the exhaust hood 400 near the filter assembly 200. When the airflow is discharged from the opening of the first receiving space 101, some small particles carried in the airflow can enter the interior of the exhaust hood 400 through the air vent 410, and the exhaust hood 400 will then collect some of the small particles, further preventing small particles from escaping into the air and improving the dust removal effect. Optionally, the air vent 410 can be considered as being formed by bending the exhaust hood 400.

[0049] It is worth noting that the edge of the outer barrel 100 partially blocks the air vent 410, thereby preventing particulate matter entering the exhaust hood 400 from being carried out by the airflow, and thus preventing particulate matter from escaping from the exhaust hood 400.

[0050] Please refer to the following: Figure 2 , Figures 4 to 6In this embodiment, the outer barrel 100 includes a main body 110 and a first disassembly piece 120. A first notch 111 corresponding to the storage container 230 is formed on the main body 110, and the first disassembly piece 120 is detachably inserted into the first notch 111. The main body 110 and the first disassembly piece 120 together form a first receiving space 101. In addition, a second notch 301 corresponding to the first notch 111 is formed on the flow guide 300; and a second disassembly piece 500 is also provided on the flow guide 300. The cross-section of the second disassembly piece 500 is the same as the cross-section of the flow guide 300, and the second disassembly piece 500 is detachably inserted into the second notch 301. When the amount of particulate matter collected in the storage container 230 is too large, the storage container 230 can be exposed by removing the first disassembly piece 120 and the second disassembly piece 500, and the storage container 230 can be removed from the first notch 111 and the second notch 301, which is beneficial for the cleaning and maintenance of the dust collector 10.

[0051] In some implementations, the first component 120 and the second component 500 are connected. This means that the second component 500 can be removed simultaneously with the first component 120, reducing disassembly difficulty. Of course, during assembly, the first component 120 and the second component 500 can also be installed simultaneously, improving assembly efficiency.

[0052] It should be understood that in some embodiments, the first component 120 and the second component 500 can also be independent of each other. When it is necessary to disassemble the storage device 230, the first component 120 and the second component 500 can be disassembled in sequence before the storage device 230 is disassembled. Of course, during assembly, the second component 500 and the first component 120 can be assembled in sequence.

[0053] Furthermore, to improve sealing performance, a first sealing structure (not shown) is provided between the first disassembly component 120 and the main body 110. And / or, a second sealing structure (not shown) is provided between the flow guide 300 and the second disassembly component 500. Here, "and / or" means that only the first sealing structure, only the second sealing structure, or both the first and second sealing structures can be provided.

[0054] It should be noted that in other embodiments, the first disassembly component 120 and the second disassembly component 500 can also be omitted, and the dust collector 10 can be cleaned and maintained by axially removing the storage container 230. Of course, when the first disassembly component 120 and the second disassembly component 500 are omitted, the first notch 111 and the second notch 301 are also omitted, so that the guide component 300 is annular as a whole, and the side wall of the outer barrel 100 is annular as a whole.

[0055] Of course, in order to facilitate the removal of the first disassembly component 120 and the second disassembly component 500, a handle 600 can be provided on the outside of the first disassembly component 120 so that the operator can apply force to the first disassembly component 120 to facilitate the removal of the first disassembly component 120 and the second disassembly component 500.

[0056] In this embodiment, in order to facilitate observation of the amount of particulate matter collected in the bucket, the dust collector 10 can be made of a transparent material, such as an acrylic transparent plate.

[0057] In addition, this embodiment also provides the following setting parameters for the dust collector 10: the storage container 230 is 1m high and has a radius of 0.3m; the guide member 300 is 2m high along its central axis, the lower half of the teardrop-shaped structure has a semi-circular or fan-shaped structure with a diameter of 0.31m, and the gap width formed on both sides of the teardrop-shaped structure is 0.35m; the first guide part 310 includes a horizontal part perpendicular to the central axis of the guide member 300 and a vertical part located at the end of the horizontal part away from the filter assembly 200, the length of the horizontal part along the central axis of the guide member 300 is 0.25m, and the length of the vertical part extending downward is 0.375m, and it follows a setting ratio design of 1:1.5; the angle between the first guide surface 321 and the second guide surface 322 is 17.5°; the outer barrel 100 is 2m high and has a radius of 1.31m; the air outlet 410 of the exhaust hood 400 is 0.28m high. Alternatively, filter screen 220 can be a low-mesh 50-mesh screen. Of course, in other embodiments, the above dimensions can also be adjusted according to actual conditions, and are not limited here.

[0058] In summary, in this dust collector 10, the airflow carrying particulate matter enters through the inlet pipe 210. When it flows through the filter screen 220, the filter screen 220 filters out large particles and collects them in the storage container 230; some smaller particles pass through the filter screen 220 and follow the airflow. Because a guide member 300 is provided in the outer barrel 100, and the lower part of the guide member 300 is teardrop-shaped, meaning that the thickness of this part gradually increases from top to bottom, the gaps formed by the two sides of the guide member 300 with the inner wall of the outer barrel 100 and the outer wall of the filter assembly 200 are roughly the same size. This reduces the vortex formed on both sides of the guide plate, thereby reducing the speed at which small particles escape from the outer barrel 100. This facilitates the efficient collection of small particles by the outer barrel 100, thus improving the technical problem in the prior art where the dust collection device has poor collection effect on fine particles, causing fine particles to easily disperse into the working environment and affect the health of workers. Furthermore, due to the arrangement of the first disassembly component 120 and the second disassembly component 500, when too much particulate matter is collected in the storage container 230, the first disassembly component 120 and the second disassembly component 500 can be removed, thereby opening the first notch 111 and the second notch 301, making it easier to remove the storage container 230 from the first notch 111 and the second notch 301, facilitating the cleaning of the storage container 230, and thus benefiting the maintenance and cleaning of the dust collector 10, and extending the service life of the dust collector 10.

[0059] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A dust collector (10), characterized in that, include: The outer barrel (100) has a first receiving space (101) inside. The filter assembly (200) includes an air inlet pipe (210), a filter screen (220), and a reservoir (230) connected in sequence; the reservoir (230) is located at the bottom of the first receiving space (101) and below the filter screen (220), and the reservoir (230) is used to collect the substances filtered out by the filter screen (220); A flow guide (300) is disposed in the first accommodating space (101) and is arranged around the filter assembly (200); the flow guide (300) is spaced apart from the filter assembly (200), and the flow guide (300) is spaced apart from the bottom wall and side wall of the first accommodating space (101); the thickness of the flow guide (300) gradually increases from top to bottom, and at least a portion of the cross section of the flow guide (300) near the bottom wall of the first accommodating space (101) is teardrop-shaped.

2. The dust collector (10) according to claim 1, characterized in that, The flow guide (300) includes a first flow guide (310) and a second flow guide (320); the first flow guide (310) is disposed above the second flow guide (320), and both the first flow guide (310) and the second flow guide (320) are arranged around the filter assembly (200); the cross-section of the second flow guide (320) is teardrop-shaped, and the top of the first flow guide (310) is bent away from the filter assembly (200) and forms a downward opening.

3. The dust collector (10) according to claim 2, characterized in that, The distance between the second flow guide (320) and the filter assembly (200) is equal to the distance between the second flow guide (320) and the outer barrel (100).

4. The dust collector (10) according to claim 2, characterized in that, The second flow guide (320) forms a vertical first flow guide surface (321) on the side near the filter assembly (200); the second flow guide (320) forms an inclined second flow guide surface (322) on the side near the outer barrel (100), and the first flow guide surface (321) and the second flow guide surface (322) form an acute angle.

5. The dust collector (10) according to claim 4, characterized in that, The acute angle between the first guide surface (321) and the second guide surface (322) ranges from 10° to 30°.

6. The dust collector (10) according to claim 1, characterized in that, The dust collector (10) also includes a support leg (700) connected between the bottom of the guide member (300) and the bottom wall of the first accommodating space (101) to support the guide member (300).

7. The dust collector (10) according to claim 1, characterized in that, The dust collector (10) also includes an exhaust hood (400), which is connected to the outside of the outer barrel (100) and arranged around the outer barrel (100), and is located at the opening of the first accommodating space (101); the exhaust hood (400) forms an air vent (410) on the side near the filter assembly (200).

8. The dust collector (10) according to any one of claims 1-7, characterized in that, The outer barrel (100) includes a main body (110) and a first disassembly piece (120); a first notch (111) corresponding to the storage container (230) is formed on the main body (110), and the first disassembly piece (120) is detachably inserted into the first notch (111); the main body (110) and the first disassembly piece (120) together form the first accommodating space (101). The flow guide (300) forms a second notch (301) corresponding to the first notch (111); and the flow guide (300) is also provided with a second disassembly piece (500), the cross section of the second disassembly piece (500) is the same as the cross section of the flow guide (300), and the second disassembly piece (500) is detachably inserted into the second notch (301).

9. The dust collector (10) according to claim 8, characterized in that, The first component (120) and the second component (500) are connected.

10. The dust collector (10) according to claim 8, characterized in that, A first sealing structure is provided between the first disassembly component (120) and the main body (110); And / or, a second sealing structure is provided between the flow guide (300) and the second disassembly member (500).

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