Novel multidirectional horizontal dust bridging prevention device

Abstract

The utility model relates to the technical field of air purification devices, in particular to a novel multidirectional horizontal dust bridging prevention device. The device comprises transverse filter elements which are arranged at intervals to form a plurality of interval spaces; the multi-direction air blowing structures are arranged on the horizontal side of the interval space, and each multi-direction air blowing structure comprises an air supply main pipe and a plurality of pairs of air blowing branch pipes distributed on the air supply main pipe; the blowing directions of the plurality of pairs of blowing branch pipes face the interval space formed by the transverse filter element; through the collaborative design of the transversely-arranged filter elements arranged at intervals and the multi-direction blowing structure and wide-angle blowing of the multiple pairs of blowing branch pipes, the air flow coverage range is remarkably expanded, dust accumulation in the interval space and the groove of the filter elements is effectively removed, and dust removal dead angles are reduced; meanwhile, the symmetrical included angle design of the blowing branch pipes avoids mutual counteracting of airflow, it is ensured that impact force is concentrated and evenly distributed, and the dust removal efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of air purification device technology, and in particular to a novel multi-directional horizontal dust anti-bridging device. Background Technology

[0002] With rapid economic development and accelerated industrialization, air pollution has become increasingly serious, especially dust pollution, which poses a growing threat to the environment and human health. Among numerous sources of dust pollution, industrial production sites such as mining, chemical production, steel smelting, and construction are the main sources of dust emissions. To effectively control dust pollution, various dust treatment devices have emerged.

[0003] However, in practical applications, dust treatment devices suffer from dust accumulation forming a "bridging" phenomenon. This not only reduces dust removal efficiency but may also increase equipment operating resistance, even requiring frequent shutdowns for cleaning, severely impacting the normal operation of the equipment. Currently, existing technologies typically use methods such as pulse jet cleaning and mechanical vibration for dust removal.

[0004] Chinese utility model patent CN210473318U, published on May 8, 2020, discloses a pneumatic anti-bridging device. This device uses a blowing structure above the space between filter elements to purge dust from between them via pulsed airflow, thus solving the "bridging" problem. However, this pneumatic anti-bridging device still fails to effectively remove dust and foreign matter from the filter element grooves, resulting in incomplete cleaning and low efficiency. Therefore, how to efficiently and energy-savingly remove dust accumulated between and within the filter elements of a dust treatment device remains a problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] To address the problem of efficiently and energy-savingly removing dust accumulated between filter elements and within the grooves of dust treatment devices, this utility model provides a novel multi-directional horizontal dust anti-bridging device, comprising:

[0006] The horizontally arranged filter elements are spaced out to form multiple interval spaces;

[0007] Several multi-directional air blowing structures are arranged on one side of the interval space. Each multi-directional air blowing structure includes an air supply main pipe and several pairs of air blowing branches distributed on the air supply main pipe.

[0008] The blowing direction of the plurality of pairs of blowing branches is toward the space formed by the horizontally placed filter element.

[0009] Among them, the included angle between the axes of a pair of air blowing branches on the same level is 2α, where 60° < 2α < 120°.

[0010] Furthermore, the multi-directional air blowing structure also includes a first pulse valve that is interconnected with the main air supply pipe.

[0011] Furthermore, any pair of the air-blowing branches includes a first branch and a second branch that are symmetrically distributed, the included angle between the axes of the first branch and the second branch is α, and their bottoms are connected to the main air supply pipe.

[0012] Furthermore, any pair of the blowing branches also includes a third branch extending from the connection end of the first branch and the second branch, the third branch being connected to the main air supply pipe.

[0013] Furthermore, the air outlet cross-section of the first branch and the second branch is one of a circle, an ellipse, and a rounded rectangle.

[0014] Furthermore, it also includes a filter element fixing structure, which includes a fixing rod and a spacer;

[0015] The fixing rod is arranged perpendicular to the length direction of the horizontally placed filter element and passes through the side of multiple horizontally placed filter elements;

[0016] The spacer is inserted into the spacer formed by the different horizontally placed filter elements and fixed to the fixing rod.

[0017] Furthermore, the spacer is an adjustable structure used to accommodate horizontally placed filter elements with different spacing.

[0018] Furthermore, the main gas supply pipe is connected to the fixed rod via a bracket.

[0019] Furthermore, an auxiliary cleaning structure is also provided on the side of the horizontally placed filter element. The auxiliary cleaning structure includes an auxiliary cleaning main pipe, an auxiliary cleaning pulse valve, and a plurality of auxiliary cleaning branch pipes provided on the auxiliary cleaning main pipe. The plurality of auxiliary cleaning branch pipes are connected to the auxiliary cleaning main pipe and the auxiliary cleaning pulse valve.

[0020] The auxiliary dust removal main pipe is connected to the fixed rod via a connector.

[0021] Furthermore, the panel of the horizontally placed filter element has several air inlets on one side and several air outlets connected to the air inlets on the other side.

[0022] The air blowing direction of the several auxiliary ash cleaning branch pipes is towards the air inlet.

[0023] In summary, compared with the prior art, the novel multi-directional horizontal dust anti-bridging device provided by this utility model, through the coordinated design of spaced horizontal filter elements and multi-directional air blowing structure, utilizes several pairs of air blowing branches to blow at a wide angle (60° < 2α < 120°), significantly expanding the airflow coverage range, effectively removing dust accumulation in the filter element gap space and grooves, and reducing cleaning dead angles; at the same time, the symmetrical angle design of the air blowing branches avoids mutual airflow cancellation, ensuring concentrated and uniform impact force, significantly improving cleaning efficiency and reducing energy consumption; in addition, the layout of the air blowing branches directly facing the filter element gap space, combined with pulse valve control, further optimizes airflow utilization efficiency, making it suitable for high dust concentration industrial scenarios, taking into account both stability and adaptability. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of Embodiments 1-2 provided by this utility model;

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 3 A bottom view of Embodiment 1 provided by this utility model;

[0028] Figure 4 A bottom view of Embodiment 2 provided by this utility model;

[0029] Figure 5 A perspective view of the multi-directional air blowing structure of Embodiment 1 provided by this utility model;

[0030] Figure 6 A perspective view of the multi-directional air blowing structure of Embodiment 2 provided by this utility model.

[0031] Figure label:

[0032] 10-Horizontal filter element; 11-Air inlet;

[0033] 20 - Multi-directional air blowing structure; 21 - Air blowing branch pipe; 21a - First branch; 21b - Second branch; 21c - Third branch; 22 - Main air supply pipe; 23 - First pulse valve;

[0034] 30 - Filter element fixing structure; 31 - Fixing rod; 32 - Spacer; 33 - Bracket; 34 - Connector;

[0035] 40 - Auxiliary dust removal structure; 41 - Auxiliary dust removal branch pipe; 42 - Auxiliary dust removal main pipe; 43 - Auxiliary dust removal pulse valve. Detailed Implementation

[0036] 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, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] This utility model provides a method such as Figure 1-3 Example 1 and as Figure 1-2 The novel multidirectional horizontal dust anti-bridging device of Embodiment 2 of 4 includes:

[0039] The horizontally arranged filter elements 10 are spaced apart to form multiple interval spaces;

[0040] Several multi-directional air blowing structures 20 are disposed on one side of the interval space. Each multi-directional air blowing structure 20 includes an air supply main pipe 22 and several pairs of air blowing branches 21 distributed on the air supply main pipe 22.

[0041] The blowing direction of the plurality of pairs of blowing branch pipes 21 is toward the space formed by the horizontally placed filter element 10.

[0042] Among them, the included angle between the axes of a pair of air blowing branches 21 on the same level is 2α, where 60° < 2α < 120°.

[0043] Specifically, during use, an external air source delivers high-pressure gas to several pairs of blowing branches 21 through the main air supply pipe 22. The blowing branches 21 are distributed at symmetrical angles of 60° to 120°, allowing the airflow to cover the gaps between the horizontally placed filter elements 10 from the horizontal side, forming a multi-directional wide-angle purging. The airflow impacts the dust accumulated on the surface of the filter element and in the grooves, effectively breaking the "bridging" phenomenon.

[0044] Preferably, the plurality of pairs of blowing branch pipes 21 are distributed at intervals on the main air supply pipe 22.

[0045] More preferably, the spacing between the plurality of pairs of blowing branch pipes 21 on the main air supply pipe 22 satisfies the formula:

[0046] ;

[0047] Where s is the distribution spacing; v is the gas velocity; d is the diameter of the blowing branch pipe; and C is the experimental constant, which can be obtained by fitting the ash removal efficiency experiment.

[0048] It should be noted that those skilled in the art can adjust the distance of the interval distribution according to the actual situation, including but not limited to the solution provided in this embodiment.

[0049] In one embodiment, such as Figure 1 As shown, the multi-directional air blowing structure 20 also includes a first pulse valve 23 that is interconnected with the air delivery main pipe 22.

[0050] Through the above structural design, the first pulse valve 23 can control the flow rate and pressure of the gas. The first pulse valve 23 can be connected to technologies known in the art, such as air pumps or air tanks, and corresponding control mechanisms. Through the first pulse valve 23, pulse cleaning can be achieved, further improving cleaning efficiency.

[0051] In one embodiment, such as Figure 3 and Figure 5 As shown, any pair of air blowing branches 21 includes a first branch 21a and a second branch 21b that are symmetrically distributed. The included angle between the axes of the first branch 21a and the second branch 21b is 2α, and their bottoms are connected to the main air supply pipe 22.

[0052] By designing the air blowing branch pipe 21 as a branch structure, the cleaning area can be increased and the cleaning efficiency can be improved.

[0053] In one embodiment, such as Figure 4 and Figure 6 As shown, any pair of air blowing branches 21 also includes a third branch 21c extending from the connection end of the first branch 21a and the second branch 21b, the third branch 21c being connected to the main air supply pipe 22.

[0054] The above structural design connects the third branch 21c to the main air supply pipe 22, improving structural stability, expanding airflow coverage, and increasing dust removal efficiency. It is particularly suitable for wide-spacing filter elements.

[0055] In one embodiment, the air outlet cross-section of the first branch 21a and the second branch 21b is one of a circle, an ellipse, and a rounded rectangle.

[0056] Preferably, the shape of the air outlet is set to a circular cross-section, which is suitable for routine dust removal needs and can improve the uniformity of dust removal.

[0057] Preferably, the air outlet is elliptical or rounded rectangular in shape, which concentrates the airflow and has a strong impact, making it suitable for places where dust accumulates and is difficult to clean.

[0058] In one embodiment, such as Figure 1 As shown, it also includes a filter element fixing structure 30, which includes a fixing rod 31 and a spacer 32;

[0059] The fixing rod 31 is arranged perpendicular to the length direction of the horizontally placed filter element 10 and passes through the side of multiple horizontally placed filter elements 10;

[0060] The spacer 32 is inserted into the spacer formed by the different horizontally placed filter elements 10 and fixed to the fixing rod 31.

[0061] Using the above technical solution, a fixing rod 31 is set to pass through the side of the horizontally placed filter element 10 to provide rigid support and prevent the horizontally placed filter element 10 from shifting due to airflow impact.

[0062] In one embodiment, the spacer 32 is an adjustable structure used to accommodate horizontally placed filter elements 10 with different spacing.

[0063] Through the above structural design, the adjustable spacer 32 can be adapted to different horizontal filter element spacings 10, improving the versatility of the device and simplifying installation and maintenance.

[0064] In one embodiment, such as Figure 1 As shown, the main gas supply pipe 22 is connected to the fixed rod 31 via a bracket 33.

[0065] In one embodiment, such as Figure 1-2 As shown, an auxiliary cleaning structure 40 is also provided on the side of the horizontally placed filter element 10. The auxiliary cleaning structure 40 includes an auxiliary cleaning main pipe 42, an auxiliary cleaning pulse valve 43, and a plurality of auxiliary cleaning branch pipes 41 disposed on the auxiliary cleaning main pipe 42. The plurality of auxiliary cleaning branch pipes 41 are connected to the auxiliary cleaning main pipe 42 and the auxiliary cleaning pulse valve 43.

[0066] The auxiliary dust removal main pipe 42 is connected to the fixed rod 31 via a connector 34.

[0067] In one embodiment, the panel of the horizontally placed filter element 10 has a plurality of air inlets 11 on one side and a plurality of air outlets connected to the air inlets 11 on the other side.

[0068] The air blowing direction of the plurality of auxiliary cleaning branch pipes 41 is toward the ventilation inlet 11.

[0069] Using the above technical solution, the auxiliary dust removal structure 40 removes dust from inside the filter element, forming a synergistic dust removal with the main air blowing structure; the blowing direction of the auxiliary dust removal branch pipe 41 is towards the air inlet 11 to ensure that the airflow accurately covers the air inlet, thoroughly removing the dust inside the air vent of the horizontally placed filter element 10.

[0070] In summary, this invention significantly improves cleaning efficiency and reduces energy consumption by using a multi-directional air blowing structure to cover the filter element spacing space and grooves with a wide-angle blowing coverage, combined with the high-pressure airflow impact of a pulse valve. The branch design of the air blowing branch pipe and the optimized air outlet cross-section enhance airflow uniformity and adaptability. The filter element fixing structure ensures stable filter element spacing through adjustable spacers and fixing rods, adapting to different working conditions. The auxiliary cleaning structure, in conjunction with the main air blowing structure, disturbs the dust inside the filter element, achieving all-round cleaning.

[0071] Although this document frequently uses terms such as horizontal filter element, multi-directional air blowing structure, main air supply pipe, air blowing branch pipe, and first pulse valve, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A novel multi-directional horizontal dust anti-bridging device, characterized in that, include: The horizontally arranged filter elements (10) are spaced apart to form multiple interval spaces; Several multi-directional air blowing structures (20) are disposed on the horizontal side of the space. Each multi-directional air blowing structure (20) includes an air supply main pipe (22) and several pairs of air blowing branches (21) distributed on the air supply main pipe (22). The blowing direction of the plurality of pairs of blowing branch pipes (21) is toward the space formed by the horizontally placed filter element (10); Among them, the included angle between the axes of a pair of air blowing branches (21) on the same level is 2α, 60°<2α<120°.

2. The novel multi-directional horizontal dust anti-bridging device according to claim 1, characterized in that: The multi-directional air blowing structure (20) also includes a first pulse valve (23) that is interconnected with the air supply main pipe (22).

3. The novel multi-directional horizontal dust anti-bridging device according to claim 2, characterized in that: Each pair of the blowing branch pipes (21) includes a first branch (21a) and a second branch (21b) that are symmetrically distributed, the included angle between the axes of the first branch (21a) and the second branch (21b) is 2α, and their bottoms are connected to the main air supply pipe (22).

4. The novel multi-directional horizontal dust anti-bridging device according to claim 3, characterized in that: Each of the air blowing branches (21) further includes a third branch (21c) extending from the connection end of the first branch (21a) and the second branch (21b), the third branch (21c) being in communication with the main air supply pipe (22).

5. The novel multi-directional horizontal dust anti-bridging device according to claim 3 or 4, characterized in that: The air outlet cross-sections of the first branch (21a) and the second branch (21b) are one of the following: circular, elliptical, and rounded rectangle.

6. The novel multi-directional horizontal dust anti-bridging device according to claim 1, characterized in that: It also includes a filter element fixing structure (30), which includes a fixing rod (31) and a spacer (32). The fixing rod (31) is arranged perpendicular to the length direction of the horizontal filter element (10) and passes through the side of multiple horizontal filter elements (10); The spacer (32) is inserted into the spacer formed by the different horizontally placed filter elements (10) and fixed on the fixing rod (31).

7. The novel multi-directional horizontal dust anti-bridging device according to claim 6, characterized in that: The spacer (32) is an adjustable structure used to adapt to horizontally placed filter elements (10) with different spacing.

8. The novel multi-directional horizontal dust anti-bridging device according to claim 6, characterized in that: The gas supply main pipe (22) is connected to the fixed rod (31) via a bracket (33).

9. The novel multi-directional horizontal dust anti-bridging device according to claim 6, characterized in that: The horizontally placed filter element (10) is also provided with an auxiliary cleaning structure (40) on its side. The auxiliary cleaning structure (40) includes an auxiliary cleaning main pipe (42), an auxiliary cleaning pulse valve (43), and a plurality of auxiliary cleaning branch pipes (41) provided on the auxiliary cleaning main pipe (42). The plurality of auxiliary cleaning branch pipes (41) are connected to the auxiliary cleaning main pipe (42) and the auxiliary cleaning pulse valve (43). The auxiliary dust removal main pipe (42) is connected to the fixed rod (31) via a connector (34).

10. The novel multi-directional horizontal dust anti-bridging device according to claim 9, characterized in that: The horizontally placed filter element (10) has several air inlets (11) on one side of its panel and several air outlets connected to the air inlets (11) on the other side. The blowing direction of the auxiliary cleaning branch pipes (41) is towards the ventilation inlet (11).

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