Dust collection equipment and production system

Abstract

The utility model discloses dust collecting equipment and a production system, the dust collecting equipment comprises a main dust collecting pipe, a dust collecting pipe and a dust collecting pipe, the main dust collecting pipe comprises at least one flue gas outlet; the sub dust collecting pipes are communicated with the main dust collecting pipe, each sub dust collecting pipe is provided with at least one dust collecting inlet and at least one oblique connecting pipe communicated with the main dust collecting pipe, the axis of each oblique connecting pipe is obliquely arranged relative to the axis of the main dust collecting pipe, and the dust collecting inlets are used for being communicated with equipment to be dedusted so as to collect dust-containing waste gas. According to the dust collecting device, the main dust collecting pipe and the sub dust collecting pipes communicated with the main dust collecting pipe respectively are arranged, the sub dust collecting pipes are connected with the main dust collecting pipe through the inclined connecting pipes, the total pressure drop of the main dust collecting pipe of the dust collecting device in the dust collecting process can be reduced, and the dust collecting efficiency is improved.

Description

Technical Field

[0001] This utility model generally relates to the field of dust collection equipment technology. More specifically, this utility model relates to a dust collection device and a production system. Background Technology

[0002] In existing dust collection systems at the end of crushing equipment production lines, a multi-branch dust collection pipe confluence structure is typically used for dust collection. Specifically, each process section of the production line (such as the crusher outlet, vibrating screen point, material conveyor belt transfer point, etc.) is equipped with independent sub-dust collection pipes, which converge radially to the main dust collection pipe. Through the pressure difference created by a negative pressure fan, the airflow carrying dust particles from each branch pipe is transported through the main pipe to a cyclone separator or bag filter for treatment. However, this traditional dust collection method generally suffers from increased pressure drop in actual operation. When multiple sub-dust collection pipes are connected to the main dust collection pipe at right angles or acute angles, airflow from each branch will collide at the confluence point. Especially when the flow velocities and / or directions of different branches differ, strong turbulent disturbances will occur within the confluenced main pipe. The resulting energy loss not only lowers the system air pressure but also leads to dust re-entrainment and accelerated pipe wear. Furthermore, the pressure fluctuations caused by turbulence affect the filtration efficiency of the dust collector, ultimately leading to overall system performance degradation.

[0003] In view of this, there is an urgent need to provide a dust collection device and production system in order to reduce turbulence disturbances during the dust removal process of the dust collection device. Utility Model Content

[0004] In order to solve at least one or more of the technical problems mentioned above, this utility model proposes a dust collection device and production system in several aspects.

[0005] In a first aspect, the present invention provides a dust collection device, comprising: a main dust collection pipe, the main dust collection pipe including at least one flue gas outlet; a plurality of sub-dust collection pipes, the sub-dust collection pipes being connected to the main dust collection pipe, each sub-dust collection pipe having at least one dust collection inlet, and at least one inclined pipe connected to the main dust collection pipe, the axis of the inclined pipe being inclined relative to the axis of the main dust collection pipe, the dust collection inlet being used to connect to the equipment to be dusted to collect dust-laden exhaust gas.

[0006] In some embodiments, a plurality of secondary dust collection pipes are also included, with at least two secondary dust collection pipes connected to a sub-dust collection pipe.

[0007] In some embodiments, a fan is also included, and a secondary dust collection pipe is connected to the fan.

[0008] In some embodiments, the secondary dust collection pipe includes a transparent section.

[0009] In some embodiments, each primary dust collection pipe includes at least one secondary inclined pipe, each primary inclined pipe is connected to a sub-dust collection pipe, and the distance between adjacent secondary inclined pipe inlets is greater than or equal to 5 meters.

[0010] In some embodiments, a guide plate is provided at the connection between the inner side of the main dust collection pipe and the inclined pipe and / or the sub-dust collection pipe and the secondary inclined pipe. The guide plate is inclined toward the axial direction of the main dust collection pipe or the sub-dust collection pipe to guide the airflow direction.

[0011] In some embodiments, the axes of the inclined connecting pipes of two adjacent sub-dust collection pipes are inclined relative to each other.

[0012] In some embodiments, the axis of the inclined pipe is inclined at 45° relative to the axis of the main dust collection pipe.

[0013] In some embodiments, the system further includes a dust collection tube rack, which includes multiple storage layers. The main dust collection tube and the sub-dust collection tubes are at least partially disposed in the multiple storage layers and supported by the dust collection tube rack.

[0014] In a second aspect, the present invention provides a production system including a dust collection device according to the first aspect and several embodiments.

[0015] By providing the dust collection equipment and production system as described above, this utility model embodiment, through the setting of a main dust collection pipe and multiple sub-dust collection pipes respectively connected to the main dust collection pipe, and by connecting the sub-dust collection pipes to the main dust collection pipe through inclined pipes, can reduce the total pressure drop of the main dust collection pipe during the dust collection process and improve the dust collection efficiency. Attached Figure Description

[0016] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0017] Figure 1 An exemplary front view of a dust collection device according to some embodiments of the present invention is shown;

[0018] Figure 2 An exemplary side view of a dust collection device according to some embodiments of the present invention is shown;

[0019] Figure 3 An exemplary front view of the secondary dust collection pipe portion of a dust collection device according to some embodiments of the present invention is shown;

[0020] Figure 4 An exemplary cross-sectional view of the connection between the secondary dust collection pipe and the sub-dust collection pipe of a dust collection device according to some embodiments of the present invention is shown;

[0021] Figure 5 An exemplary perspective view of a dust collection device according to some embodiments of the present invention is shown;

[0022] Figure 6 An exemplary top view of a production system according to some embodiments of the present invention is shown.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10 – Main dust collection pipe; 100 – Dust collection equipment; 15 – Flue gas outlet; 20 – Sub-dust collection pipe; 200 – Production system; 21 – Inclined pipe; 211 – Baffle plate; 25 – Dust collection inlet; 30 – Secondary dust collection pipe; 300 – Dust removal equipment; 32 – Transparent pipe section; 33 – Silencer; 50 – Dust collection pipe rack; 60 – Fan. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be understood that the terms "comprising" and "including" used in the specification and claims of this utility model indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0027] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this specification and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0028] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0029] In existing industrial production systems, such as those used for ore mining, crushing, sorting, and processing, each process often generates significant amounts of dust. To address this, multiple dust collection pipes are typically connected to the dust-generating points of each production unit. These dust-generating points include furnace outlets, crusher outlets, vibrating screen points, material conveyor belt transfer points, and drying equipment outlets. By connecting the branch dust collection pipes to a main dust collection pipe, and then connecting the main dust collection pipe to dust treatment equipment such as cyclone separators or bag filters, and using equipment like negative pressure fans for suction, the dust can be collected and treated, reducing the harm of harmful fumes to operators and the environment.

[0030] However, such equipment often experiences excessive pressure drop during use. This is primarily because when multiple sub-collection pipes connect to the main collection pipe at right or acute angles, complex vector superposition effects occur at the convergence points of the airflow from each branch. Especially when there are differences in dust concentration, suction flow rate, and power among different branches, significant differences in flow velocity occur in each branch. This dual difference in velocity and concentration generates strong turbulent disturbances within the converged main pipe. The resulting energy loss not only lowers the system air pressure but also causes secondary dust re-entrainment, increasing the escape rate of smaller fine particles and leading to environmental pollution. Furthermore, unstable airflow exacerbates pipe wear, particularly at bends or joints in the pipe system. Moreover, pressure fluctuations caused by turbulence affect the dust collector's filtration efficiency, thus shortening the cleaning cycle of the bag filter and increasing the maintenance burden on production personnel. These problems affect production efficiency and also pose environmental compliance risks. The root cause is that existing designs often neglect airflow guidance, simply adopting a parallel structure of equal-diameter branch pipes, and lacking necessary flow guiding devices and pressure balancing measures. This extensive design makes it impossible for the airflow of each branch to achieve laminar and orderly convergence, ultimately leading to the deterioration of the overall system performance.

[0031] In view of this, the present invention provides a dust collection device, which reduces the total pressure drop of the main dust collection pipe during the dust collection process and improves the dust collection efficiency by setting a main dust collection pipe and multiple sub-dust collection pipes respectively connected to the main dust collection pipe, and connecting the sub-dust collection pipes to the main dust collection pipe by means of inclined oblique connecting pipes.

[0032] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0033] Figure 1 An exemplary front view of a dust collection device according to some embodiments of the present invention is shown. The dust collection device 100 according to some embodiments of the present invention includes a main dust collection pipe 10 and a plurality of sub-dust collection pipes 20. The main dust collection pipe 10 includes at least one flue gas outlet 15. The plurality of sub-dust collection pipes 20 are connected to the main dust collection pipe 10. Each sub-dust collection pipe 20 has at least one dust collection inlet 25 and at least one inclined pipe 21 connected to the main dust collection pipe 10. The axis of the inclined pipe 21 is inclined relative to the axis of the main dust collection pipe 10. The dust collection inlet 25 is used to connect to the equipment to be dusted to collect dust-laden exhaust gas. The main dust collection pipe 10 and the plurality of sub-dust collection pipes 20 are airtight pipes for transporting exhaust gas, and their materials include metals such as steel and aluminum, or engineering plastics. The dust collection inlet 25 of the sub-dust collection pipe 20 is connected to the working space of each dust removal device or the exhaust outlet of the device, and the exhaust gas of the corresponding device is collected and discharged to the main dust collection pipe 10 through the inclined pipe 21. The main dust collection pipe 10 is used to collect the exhaust gas and discharge it through the flue gas outlet 15.

[0034] By tilting the axis of the inclined pipe 21 of the sub-dust collection pipe 20 relative to the axis of the main dust collection pipe 10, when the flue gas enters the main dust collection pipe 10 through the inclined pipe 21, the flue gas flow can flow along the axis of the inclined pipe 21. This avoids the flue gas flow impacting the inner wall of the main dust collection pipe 10 in a direction perpendicular to the axis of the main dust collection pipe 10, thus preventing turbulent flow and obstruction of airflow within the main dust collection pipe 10, which would otherwise result in a large pressure drop. Therefore, the overall pressure drop of the dust collection equipment can be reduced during flue gas collection, improving dust collection efficiency.

[0035] like Figure 1 As shown, in this embodiment, the dust collection device 100 further includes multiple secondary dust collection pipes 30, with at least two secondary dust collection pipes 30 connected to a sub-dust collection pipe 20. The dust collection inlet 25 of the sub-dust collection pipe 20 is connected to the equipment to be dusted via the secondary dust collection pipes 30. One or more of the secondary dust collection pipes 30 are connected to the sidewall of a sub-dust collection pipe 20 and input the collected dust-laden airflow into the sub-dust collection pipe 20. Thus, before the dust-laden exhaust gas enters the main dust collection pipe 10 from the sub-dust collection pipe 20, it undergoes additional buffering in the secondary dust collection pipes 30 and the sub-dust collection pipe 20, making the flow velocity and direction of the dust-laden airflow more stable and reducing turbulence generated in the pipe due to inconsistent airflow velocity and angle.

[0036] See Figure 2 , Figure 2An exemplary side view of a dust collection device according to some embodiments of the present invention is shown. In this embodiment, the dust collection device further includes a fan 60, and a secondary dust collection pipe 30 is connected to the fan 60. The fan includes a motor for generating power and an air pump or fan driven by the motor, the airflow output of which is connected to the interior of the secondary dust collection pipe 30. Thus, during dust collection, the fan 60 provides a stable suction airflow into the pipe, thereby driving the dust-laden airflow from the equipment to be dusted to the flue gas outlet 15. The fan 60 is located on the side of the secondary dust collection pipe 30 closer to the equipment to be dusted and upstream of the flue gas outlet 15. This arrangement, on the one hand, enhances the negative pressure suction force generated by the airflow from the fan 60 at the equipment to be dusted, and on the other hand, allows the dust-laden airflow to become stable under the guidance of the pipe walls of the secondary dust collection pipe 30, the sub-dust collection pipe 20, and the main dust collection pipe 10 during its movement from the secondary dust collection pipe 30 to the flue gas outlet 15, further reducing the generation of turbulence.

[0037] In addition, see Figure 3 , Figure 3 An exemplary front view of the secondary dust collection pipe portion of a dust collection device according to some embodiments of the present invention is shown. The secondary dust collection pipe 30 also includes a transparent pipe section 32, which is a section made of transparent material disposed on the secondary dust collection pipe 30, or a transparent window disposed on a side wall thereof. Through the transparent pipe section 32, the operator can observe the airflow and dust conditions inside the secondary dust collection pipe 30, so as to flexibly adjust the operating parameters such as the power of the fan 60 according to the actual working conditions, or promptly troubleshoot blockages and other faults. The secondary dust collection pipe 30 also includes a silencer 33, which is disposed on the section of the secondary dust collection pipe 30 near the equipment to be dusted, or disposed on the outer periphery of the secondary dust collection pipe 30, to reduce the noise generated during operation.

[0038] See you again Figure 1 and Figure 3 In this embodiment, similar to the sub-dust collection pipe 20, each stage dust collection pipe 30 includes at least one secondary inclined pipe 31. Each stage inclined pipe 31 is connected to a sub-dust collection pipe 20, and the distance between the inlets of adjacent secondary inclined pipes 31 is greater than or equal to 5 meters. The axis of the secondary inclined pipe 31 is inclined relative to the axis of the sub-dust collection pipe 20 to ensure that the airflow direction is consistent with the overall airflow direction in the sub-dust collection pipe 20 when the dust-laden airflow is introduced into the sub-dust collection pipe 20, and to avoid the dust-laden airflow impacting the pipe wall and causing turbulence. By ensuring that the distance between the inlets of two adjacent secondary inclined pipes 31 is greater than or equal to 5 meters, it is possible to avoid the interval between the two secondary inclined pipes 31 being too close, which would cause the airflow input from the two secondary dust collection pipes 30 to the sub-dust collection pipe 20 to collide with each other and thus generate turbulence.

[0039] See Figure 4 , Figure 4 An exemplary cross-sectional view of the connection between the secondary dust collection pipe and the sub-dust collection pipe of a dust collection device according to some embodiments of the present invention is shown. Further or optionally, in this embodiment, a guide plate 211 is provided at the connection point between the inner side of the main dust collection pipe 10 and the inclined pipe 21, and / or at the connection point between the inner side of the sub-dust collection pipe 20 and the secondary inclined pipe 31. The guide plate 211 is inclined towards the axial direction of the main dust collection pipe 10 or the sub-dust collection pipe 20 to guide the airflow direction. Figure 4 For example, the guide plate 211 is fixedly installed on the inner wall of the sub-dust collection pipe 20 near the inlet of the secondary dust collection pipe 30. The guide plate 211 extends radially from the inner wall of the sub-dust collection pipe 20 and is inclined towards the axial direction of the sub-dust collection pipe 20. Therefore, when the dust-laden airflow flows from the secondary dust collection pipe 30 into the sub-dust collection pipe 20, it is first guided by the inclined guide plate 211, thereby changing its flow direction towards the axial direction of the sub-dust collection pipe 20, reducing the probability of conflict with the overall airflow in the sub-dust collection pipe 20 due to different flow directions. Similarly, the same guide plate 211 can also be installed near the inlet where the sub-dust collection pipe 20 connects to the main dust collection pipe 10 to further stabilize the airflow and reduce the overall pressure drop. In addition, the guide plate 211 is formed with a certain curvature, and the extension direction of the end away from the wall of the sub-dust collection pipe 20 tends to be parallel to the axial direction of the sub-dust collection pipe 20, so as to guide the flow direction of the dust-laden airflow more gently.

[0040] See Figure 5 , Figure 5 An exemplary perspective view of a dust collection device according to some embodiments of the present invention is shown. In this dust collection device, two sub-dust collection pipes 20 are connected to a main dust collection pipe 10. The inlets of the two sub-dust collection pipes 20 and the main dust collection pipe 10 are adjacent to each other, and the axes of the inclined pipes 21 of the two adjacent sub-dust collection pipes 20 are inclined relative to each other. With this arrangement, the inlets of the two adjacent sub-dust collection pipes 20 that enter the main dust collection pipe 10 are located at different positions on the outer peripheral wall of the main dust collection pipe 10, and the airflow directions of the two sub-dust collection pipes 20 entering the main dust collection pipe 10 are also staggered. As a result, the possibility of the dust-laden airflow in the two sub-dust collection pipes 20 directly colliding with each other after entering the main dust collection pipe 10 can be reduced, and the stability of the airflow in the main dust collection pipe 10 can be improved. At the same time, this arrangement also makes the overall layout of the dust collection device more compact, especially suitable for situations where space is limited or where more sub-dust collection pipes 20 need to be arranged. Furthermore, similarly, when multiple secondary dust collection pipes 30 are connected to a sub-dust collection pipe 20, the axes of two or more adjacent secondary dust collection pipes 30 can also be set to be inclined to each other to further reduce the probability of airflow collision.

[0041] See you again Figure 2In this embodiment, the dust collection device 100 further includes a dust collection pipe rack 50, which includes multiple storage layers. The main dust collection pipe 10 and the sub-dust collection pipes 20 are at least partially disposed in the multiple storage layers and supported by the dust collection pipe rack 50. The dust collection pipe rack 50 is composed of common support components such as square steel. On the one hand, it supports the main dust collection pipe 10, the sub-dust collection pipes 20, and other components; on the other hand, it can reduce the probability of direct contact between the pipes containing high-temperature flue gas and the operators. Furthermore, see again... Figure 1 In this embodiment, the axis of the inclined pipe 21 is inclined at 45° relative to the axis of the main dust collection pipe 10. At this inclination angle, the impact of the dust-laden airflow on the pipe wall when entering the main dust collection pipe 10 can be reduced, the generation of turbulence can be reduced, the pipe layout can be made more compact, and production and maintenance can be made more convenient, avoiding the difficulties in processing or support caused by using long inclined pipes.

[0042] Those skilled in the art will understand that although the above description outlines a scheme of connecting multiple secondary dust collection pipes to a sub-dust collection pipe and then connecting the sub-dust collection pipe to a main dust collection pipe, this invention does not limit the form, quantity, or connection method of the secondary and sub-dust collection pipes. For example, in some embodiments, the secondary dust collection pipe is directly connected to the main dust collection pipe. Furthermore, the sub-dust collection pipe may also include auxiliary devices such as fans and silencers, with the specific arrangement depending on actual needs.

[0043] The dust collection device according to the present invention, by setting a main dust collection pipe and multiple sub-dust collection pipes connected to the main dust collection pipe by means of inclined pipes, can reduce the conflict between the airflow entering the main dust collection pipe and the overall airflow direction of the main dust collection pipe, thereby reducing the generation of unstable airflow, reducing turbulence, improving dust collection efficiency, and reducing the occurrence of adverse situations such as smoke and dust leakage or pipe wear caused by turbulence.

[0044] See Figure 6 , Figure 6 An exemplary top view of a production system according to some embodiments of the present invention is shown. In this embodiment, the production system 200 includes a dust collection device 100 according to various embodiments of the present invention, and a dust removal device 300. The dust removal device 300 includes a heating furnace, crushing equipment, drying equipment, screening equipment, etc., that may generate smoke or other harmful gases. The dust collection device is connected to the smoke outlet of the dust removal device 300 via a sub-dust collection pipe as described above, or to a production space such as a factory building where the dust removal device 300 is installed, so as to absorb the waste gas to be treated through the sub-dust collection pipe and then transport it to the smoke outlet for further treatment.

[0045] While various embodiments of the present invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A dust collection device, characterized in that, include: A main dust collection pipe (10) includes at least one flue gas outlet (15); Multiple sub-dust collection pipes (20) are connected to the main dust collection pipe (10). Each sub-dust collection pipe (20) has at least one dust collection inlet (25) and at least one inclined pipe (21) connected to the main dust collection pipe (10). The axis of the inclined pipe (21) is inclined relative to the axis of the main dust collection pipe (10). The dust collection inlet (25) is used to connect to the dust removal equipment to collect dust-laden exhaust gas.

2. The dust collection device according to claim 1, characterized in that, It also includes a plurality of secondary dust collection pipes (30), at least two of the secondary dust collection pipes (30) being connected to one of the sub-dust collection pipes (20).

3. The dust collection device according to claim 2, characterized in that, It also includes a fan (60), and the secondary dust collection pipe (30) is connected to the fan (60).

4. The dust collection device according to claim 2, characterized in that, The secondary dust collection pipe (30) includes a transparent pipe section (32).

5. The dust collection device according to claim 2, characterized in that, Each of the secondary dust collection pipes (30) includes at least one secondary inclined pipe (31), each of the secondary inclined pipes (31) is connected to one of the sub-dust collection pipes (20), and the distance between the inlets of adjacent secondary inclined pipes (31) is greater than or equal to 5 meters.

6. The dust collection device according to claim 5, characterized in that, A guide plate (211) is provided at the connection between the inner side of the main dust collection pipe (10) and the inclined pipe (21) and / or the sub-dust collection pipe (20) and the secondary inclined pipe (31). The guide plate (211) is inclined toward the axial direction of the main dust collection pipe (10) or the sub-dust collection pipe (20) to guide the airflow direction.

7. The dust collection device according to claim 1, characterized in that, The axes of the inclined pipes (21) of two adjacent sub-dust collection pipes (20) are inclined relative to each other.

8. The dust collection device according to claim 1, characterized in that, The axis of the inclined pipe (21) is inclined at 45° relative to the axis of the main dust collection pipe (10).

9. The dust collection device according to any one of claims 1 to 8, characterized in that, It also includes a dust collection tube rack (50), which includes multiple storage layers. The main dust collection tube (10) and the sub-dust collection tubes (20) are respectively at least partially disposed in the multiple storage layers and supported by the dust collection tube rack (50).

10. A production system, characterized in that, Includes the dust collection device according to any one of claims 1 to 9.

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