A high-efficiency dust cleaning system and method for cleaning dust accumulated in a pipeline

Abstract

This invention discloses a high-efficiency dust removal system for cleaning accumulated dust in pipelines, comprising a main pipeline, a suction unit, and a dust removal unit. The suction unit provides airflow. The first end of the main pipeline is connected to a dust purification device. The second end of the main pipeline includes several interconnected first pipe sections, each connected to several first branch pipes. Suction nozzles at the ends of the first branch pipes are positioned near a processing unit. The dust removal unit includes a dust removal pipe equipped with a dust removal valve. The diameter of the dust removal pipe is consistent with the diameter of the connected first pipe section or first branch pipe. A dust removal method for this system is also disclosed. This invention features a reasonable structure, good dust removal effect, low energy consumption, and self-cleaning pipelines.

Description

Technical Field

[0001] This invention relates to the field of dust removal and environmental protection equipment technology, specifically to a high-efficiency dust removal system and method for cleaning dust accumulated in pipelines. Background Technology

[0002] With the rapid development of society, a large amount of particulate dust is generated during the processing and production processes of various industries such as metallurgy, chemicals, power, and building materials. If particulate dust in the working environment is not treated in a timely manner, it will not only harm the health of workers, but also cause serious air pollution if directly discharged into the atmosphere. Based on the current strict environmental protection requirements and the need to protect the personal safety of workers, enterprises must introduce environmental dust removal equipment in their production processes. In existing technologies, environmental protection equipment usually uses pipelines to transport and collect dust. In order to ensure sufficient airflow in the pipelines to concentrate the dust from the processing unit into the dust removal equipment, high-power fans are often required, resulting in high energy consumption and high dust removal costs. In addition, the pipelines used to transport dust in a factory area are often winding and long. After long-term use, settled dust often accumulates in the pipelines, making cleaning difficult and detrimental to the long-term stable operation of the pipelines. Summary of the Invention

[0003] This invention discloses a highly efficient dust removal system and method for cleaning accumulated dust in pipelines. It solves the technical problems of existing wind-powered dust collectors, such as high energy consumption, difficulty in cleaning the pipelines, and inability to maintain continuous and stable operation. The system features a reasonable structure, good dust removal effect, low energy consumption, and self-cleaning capability. The technical solution adopted is as follows:

[0004] A high-efficiency dust removal system for cleaning accumulated dust in pipes includes a main pipe, a suction unit, and a dust removal unit. The suction unit provides airflow to the main pipe or the dust removal unit. The first end of the main pipe is connected to a dust purification device. The second end of the main pipe includes several interconnected first pipe sections. The diameter of the several first pipe sections gradually increases along the airflow direction, and the first pipe sections are connected to several first branch pipes. The suction nozzles at the ends of the first branch pipes are located close to the processing unit. The dust removal unit includes a dust removal pipe. The dust removal pipe is connected to the main pipe through the first pipe section or the first branch pipe and is equipped with a dust removal valve. The diameter of the dust removal pipe is the same as the diameter of the connected first pipe section or the first branch pipe. Multiple dust removal pipes can be provided.

[0005] Based on the above technical solution, several of the first pipe sections are straight pipe sections, two adjacent first pipe sections are connected by a first tapered pipe, and the first branch pipe is connected to the main pipe through the first tapered pipe.

[0006] Based on the above technical solution, the diameter of the first branch pipe is positively correlated with the taper of the first conical pipe it connects to, so that the wind speed in the first pipe section on the left side of the first conical pipe, the wind speed in the first branch pipe, and the wind speed in the first pipe section on the right side of the first conical pipe are basically the same.

[0007] Based on the above technical solution, at least one of the first branch pipes includes several connected second pipe sections, the diameter of the several second pipe sections gradually increases along the airflow direction, and the second pipe sections are connected to several second branch pipes. The air intake nozzle at the end of the second branch pipe is set close to the processing unit. The several second pipe sections are straight pipe sections, and two adjacent second pipe sections are connected by a second tapered pipe. The second branch pipe is connected to the first branch pipe through the second tapered pipe.

[0008] Based on the above technical solution, a controller is also included. An air suction valve is provided at the air suction nozzle. The air suction valve is electrically connected to the controller through the power switch of the processing unit to realize the linkage opening and closing of the air suction valve and the power switch of the processing unit.

[0009] Based on the above technical solution, it also includes a pressure sensor for detecting the air pressure in the first end of the main pipe. The suction unit includes several fans electrically connected to the controller. The air inlet of the fan is connected to the main pipe to provide air power. The pressure sensor is electrically connected to the controller and can send a signal to the controller. The controller can control the number of fans to be turned on according to the air pressure value in the first end of the main pipe to keep the air pressure value in the first end of the main pipe within a set range.

[0010] Based on the above technical solution, at least one of the wind turbines is electrically connected to the power supply via a frequency converter.

[0011] Based on the above technical solution, a third branch pipe is connected near the first end of the main pipe. The third branch pipe is connected to the material box, which contains auxiliary materials. The auxiliary materials can be attached to the side wall of the filter material under the action of wind power to isolate the filter bag from oily, watery or corrosive particulate dust.

[0012] A method for cleaning pipe dust is applied to the high-efficiency dust removal system for cleaning accumulated dust in pipes as described above. The dust removal system includes a suction valve at the suction nozzle, which is electrically connected to a controller via a power switch of a processing unit to achieve synchronized opening and closing of the suction valve and the processing unit. The method comprises the following steps:

[0013] A. The suction valve is activated in conjunction with the power supply of the processing unit;

[0014] B. The pressure sensor sends a signal to the controller, which controls the number of fans to be turned on based on the pressure value in the first end of the main pipeline, so as to keep the pressure in the first end of the main pipeline within a set range.

[0015] C. The suction valve is closed in conjunction with the power supply of the processing unit, and the cleaning valves are closed one by one along the airflow direction;

[0016] D. The controller controls the fan to turn off.

[0017] Based on the above technical solution, in the efficient dust removal system for cleaning accumulated dust in pipelines, a third branch pipeline is connected near the first end of the main pipeline. The third branch pipeline is connected to a material box, which contains auxiliary materials. Before the valve is opened, the controller controls the fan to start for a period of time b. The auxiliary materials pass through the main pipeline and adhere to the side wall of the filter material under the action of the wind.

[0018] Beneficial effects

[0019] The present invention features a rational structural design. Several first pipe sections are sequentially connected, with their diameters gradually increasing along the airflow direction. Each first pipe section is connected to several first branch pipes, which in turn can be connected to second branch pipes. The suction nozzles are positioned close to the processing unit. This not only significantly expands the dust removal coverage of the dust removal equipment but also allows for targeted and precise dust removal, thus reducing energy consumption. Furthermore, the gradually increasing diameter of the first pipe sections along the airflow direction ensures a relatively stable airflow within the main pipe after pressure distribution in the first branch pipes. This prevents dust from settling and clogging the pipes due to gravity and also avoids excessive fan energy consumption. Simultaneously, the first pipe sections are straight, and adjacent first pipe sections are connected via tapered pipes, with the first branch pipes also connected to the tapered pipes. This maintains stable airflow within the first pipe sections, preventing noise caused by unstable airflow.

[0020] In addition, a dust removal unit is provided, which includes a dust removal pipe. The diameter of the dust removal pipe is the same as the diameter of the first pipe section or the first branch pipe connected to it, so as to avoid the wind speed reduction after entering the first pipe section or the first branch pipe through the dust removal pipe. The dust removal pipe can be arranged at key locations where dust is prone to settling, such as pipe bends or pipes with large diameter changes. After the suction valve is closed, several dust removal valves are opened one by one along the airflow direction. For example, a dust removal valve located at the end of the main pipe is opened for time a1 and then closed, and another dust removal valve along the airflow direction is opened for time a2 and then closed, until all the dust removal valves are opened one by one. In this way, the air volume in the main pipe can be maintained at the set range value with a small number of fans running, ensuring rapid and efficient removal of the dust settled in the pipe. The dust removal pipe section can be arranged at key locations where dust is prone to settling, so that the dust in the main pipe can be cleaned more specifically.

[0021] Furthermore, the suction nozzle is equipped with a suction valve, which is linked to the power switch of the processing unit for opening and closing. This allows for adaptive control of the number of fans to be turned on according to dust removal needs, ensuring that the air volume in the main duct is always kept within the set range, preventing the suction nozzle from drawing air without a load, which helps reduce energy consumption and lower dust removal costs for enterprises.

[0022] Furthermore, the present invention also includes a third branch pipe and a material box. When the material to be filtered is oily, watery, or corrosive particulate dust, the auxiliary material can effectively isolate the oily, watery, or corrosive particulate dust from the filter bag, preventing adhesion and damage to the filter bag, and thus improving the service life of the filter bag. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 only one embodiment of the present invention. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0024] Figure 1 : A schematic diagram of the structure of the present invention;

[0025] Figure 2 : Figure 1 A schematic diagram of a local structure. Detailed Implementation

[0026] The following description and accompanying drawings fully illustrate specific embodiments described herein to enable those skilled in the art to practice them. Some embodiments may include or substitute parts and features of other embodiments. The scope of the embodiments herein encompasses the entire scope of the claims and all available equivalents thereof. Throughout this document, the terms “first,” “second,” etc., are used only to distinguish one element from another without requiring or implying any actual relationship or order between the elements. Indeed, a first element can also be referred to as a second element, and vice versa. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a structure, apparatus, or device. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the structure, apparatus, or device that includes said element. The various embodiments described herein are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments; similar or identical parts between embodiments can be referred to interchangeably.

[0027] The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in this document to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing the document and for 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 the invention. In the description herein, unless otherwise specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two elements; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] In this document, unless otherwise stated, the term "multiple" means two or more.

[0029] In this article, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0030] In this article, the term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0031] like Figure 1 and 2 The illustrated efficient dust removal system for cleaning accumulated dust in pipes includes a main pipe 1, a suction unit, and a dust removal unit. The suction unit provides airflow to the main pipe 1 or the dust removal unit. The first end of the main pipe 1 is connected to a dust purification device 100. This dust purification device is existing technology and can be selected by those skilled in the art according to their needs; further details are omitted here. Figure 2 As shown, the second end of the main pipe 1 includes several interconnected first pipe sections 11. The diameter of each first pipe section 11 gradually increases along the airflow direction. Specifically, each first pipe section 11 is a straight pipe section, and adjacent first pipe sections 11 are connected by a first tapered pipe 12. This maintains stable airflow within the first pipe section 11 and prevents noise caused by unstable airflow. Each first pipe section 11 is connected to several first branch pipes 2. Specifically, each first branch pipe 2 is connected to a first pipe section 11 in the main pipe 1 via a first tapered pipe 12. The diameter of each first branch pipe 2 is positively correlated with the taper of the connected first tapered pipe 12 to ensure... Figure 1In this system, the wind speed in the first pipe section 11 on the left side of the first conical pipe 12, the wind speed in the first branch pipe 2, and the wind speed in the first pipe section 11 on the right side of the first conical pipe 12 are basically the same, which helps to maintain a stable wind speed in the main pipe 1 (wind speed = air volume / pipe cross-section) and avoid dust settling. In order to cover more processing units 8, at least one of the first branch pipes 2 includes several connected second pipe sections 21. Specifically, the first branch pipe 2 includes a curved pipe section and a straight pipe section. The straight pipe section includes several connected second pipe sections 21. The diameter of the several second pipe sections 21 gradually increases along the airflow direction, and the several second pipe sections 21 are straight pipe sections. Adjacent second pipe sections 21 are connected by a second tapered pipe 22. There are multiple second branch pipes 201 and they are connected to the first branch pipe 2 through the second tapered pipe 22. The diameter of the second branch pipe 201 is positively correlated with the taper of the connected second tapered pipe 22, so as to help maintain a stable air velocity in the second pipe section 21. The end of the second branch pipe 201 is also provided with a suction nozzle 5, which is located close to the processing unit 8.

[0032] In addition, the suction nozzle at the end of the first branch pipe 2 or the second branch pipe 201 is located close to the processing unit 8, and the end of the suction nozzle 5 is connected to a suction hood. The suction hood is cone-shaped with a smaller top and a larger bottom, which helps to gather dust.

[0033] The dust removal unit includes a dust removal pipe 3, which passes through a first pipe section 11 and is equipped with a dust removal valve 4. The diameter of the dust removal pipe 3 is the same as the diameter of the connected first pipe section 11 or first branch pipe 2. In other embodiments of the invention, the dust removal pipe 3 is connected to the main pipe 1 through the first branch pipe 2, and the diameter of the dust removal pipe 3 is the same as that of the connected first branch pipe 2. The dust removal valve 4 is electrically connected to the controller 7. The dust removal pipe 3 can be arranged at key locations where dust settling is likely to occur. Key locations include pipe bends or pipes with significant diameter changes, where the diameter change exceeds 30%. The exhaust port of the suction unit is connected to the dust removal pipe 3 to provide airflow.

[0034] It also includes a controller 7, and a suction valve 6 is provided at the suction nozzle 5. The suction valve 6 is electrically connected to the controller 7 through the power switch of the processing unit 8, so as to realize the linkage between the suction valve 8 and the power switch of the processing unit 8 to open and close in a coordinated manner. This avoids the suction valve 6 opening when the processing unit 8 is not working, and the suction nozzle 5 sucking without air, which helps to reduce the energy consumption of the suction unit and reduce the dust removal cost.

[0035] In addition, a pressure sensor is included to detect the air pressure inside the first end of the main duct 1. The suction unit includes several fans electrically connected to the controller 7. In this embodiment, the suction unit is located inside the dust purification equipment 100. The air inlet of the fan is connected to the first end of the main duct 1 to provide airflow. The pressure sensor is electrically connected to the controller 7 and can send signals to the controller. The controller can control the number of fans to be turned on according to the air pressure value inside the first end of the main duct 1 to keep the air pressure value inside the main duct 1 within a set range. Furthermore, at least one of the fans is electrically connected to the power supply through a frequency converter. This avoids frequent start-stop of the fans when the number of processing units 8 changes or the required airflow changes, which helps to improve the service life of the fans.

[0036] like Figure 1 As shown, a first conical pipe 12 near the first end of the main pipe 1 is connected to a third branch pipe. The third branch pipe is connected to a material box, which contains auxiliary materials (such as polishing wood powder, lime powder, etc., powders prepared according to the characteristics of the dust that needs to be filtered). Wood powder and lime powder are existing technologies, and those skilled in the art can purchase them as needed. They will not be described in detail here.

[0037] In production, relying solely on the characteristics of filter materials (such as filter bags) is no longer sufficient to meet the filtration requirements for dust containing oil, water, or corrosive particles, and will greatly reduce the service life of filter materials (such as filter bags). In this embodiment, under the action of wind power, the auxiliary material can be attached to the side wall of the filter material (such as filter bag) to isolate the filter bag from the dust containing oil, water, or corrosive particles, and avoid clogging or damage to the filter material (such as filter bag).

[0038] The pipe cleaning method, applied to the aforementioned high-efficiency pipe dust removal system, includes the following steps:

[0039] A. The controller (7) controls the fan to start during the time period b. The auxiliary material passes through the main pipe (1) and is attached to the side wall of the filter material (such as filter bag) under the action of the wind, effectively protecting the filter material.

[0040] B. The suction valve 6 is activated in conjunction with the power supply of the processing unit 8;

[0041] C. The air pressure sensor sends a signal to the controller 7, and the controller 7 controls the number of fans to be turned on according to the air pressure value in the first end of the main pipeline 1, so as to keep the air pressure in the first end of the main pipeline 1 within the set range.

[0042] D. The suction valve 6 is closed in conjunction with the power supply of the processing unit 8, and the cleaning valves 4 are closed sequentially along the airflow direction. For example, if a cleaning valve located at the end of the main pipe 1 is opened for time a1 and then closed, the next cleaning valve 4 along the airflow direction will be opened for time a2 and then closed, until all the cleaning valves 4 are closed sequentially. The air outlet of the suction unit is connected to the cleaning pipe 3 and sequentially provides airflow to the cleaning pipe 3. That is, during the cleaning process, the fan in the suction unit draws air from the first end of the main pipe 1, which is then processed by the dust purification equipment. Afterwards, the fan exhausts air into the dust removal duct 3. This allows the main duct 1 to quickly reach the set airflow speed with only a small number of fan cycles, resulting in a more thorough and efficient cleaning of the settled dust in the main duct 1. (In the existing technology, the dust removal process usually involves opening the suction valve 6 and operating the suction unit at maximum power to remove as much settled dust as possible. After being processed by the dust purification equipment, the suction unit exhausts air outwards, which is not only not conducive to reducing energy consumption but also has low dust removal efficiency.) Furthermore, the dust removal duct can be arranged in key locations where dust settling is likely to occur, allowing for more targeted cleaning of the dust in the main duct 1.

[0043] E. The controller controls the fan to turn off.

[0044] Step B can be performed before step A or simultaneously with step A.

[0045] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A high-efficiency dust removal system for cleaning accumulated dust in pipes, characterized in that, The system includes a main pipe (1), a suction unit, and a dust removal unit. The suction unit is used to provide air power to the main pipe (1) or the dust removal unit. The first end of the main pipe (1) is connected to the dust purification equipment (100). The second end of the main pipe (1) includes several connected first pipe sections (11). The diameter of the several first pipe sections (11) gradually increases along the airflow direction. The first pipe sections (11) are also connected to several first branch pipes (2). The suction nozzle (5) at the end of the first branch pipe (2) is set close to the processing unit (8). The dust removal unit includes a dust removal pipe (3). The dust removal pipe (3) is connected to the main pipe (1) through the first pipe section (11) or the first branch pipe (2) and is equipped with a dust removal valve (4). The diameter of the dust removal pipe (3) is the same as the diameter of the connected first pipe section (11) or the first branch pipe (2). The fan in the suction unit draws air from the first end of the main pipe (1), and after being processed by the dust purification equipment (100), the fan exhausts air to the dust removal pipe (3); The dust removal pipe (3) is arranged in key locations where dust settling is likely to occur; Several of the first pipe sections (11) are straight pipe sections, and two adjacent first pipe sections (11) are connected by a first tapered pipe (12). The first branch pipe (2) is connected to the main pipe (1) through the first tapered pipe (12). The end of the suction nozzle (5) is connected to a suction hood, which is cone-shaped with a smaller top and a larger bottom. A third branch pipe is connected to the first end of the main pipe (1). The third branch pipe is connected to the material box. The material box contains auxiliary materials. Under the action of wind power, the auxiliary materials are attached to the side wall of the filter material to isolate the filter bag from dust containing oil, water or corrosive particles.

2. The efficient dust removal system for cleaning accumulated dust in pipelines according to claim 1, characterized in that, The diameter of the first branch pipe (2) is positively correlated with the taper of the first tapered pipe (12) it is connected to.

3. The efficient dust removal system for cleaning accumulated dust in pipelines according to claim 1 or 2, characterized in that, At least one of the first branch pipes (2) includes several connected second pipe sections (21), the diameter of the several second pipe sections (21) gradually increases along the airflow direction, and the second pipe sections (21) are connected to several second branch pipes (201). The air intake nozzle (5) at the end of the second branch pipe (201) is set close to the processing unit (8). The several second pipe sections (21) are straight pipe sections. Two adjacent second pipe sections (21) are connected through a second tapered pipe (22). The second branch pipe (201) is connected to the first branch pipe (2) through the second tapered pipe (22).

4. The efficient dust removal system for cleaning accumulated dust in pipelines according to claim 3, characterized in that, It also includes a controller (7), and a suction valve (6) is provided at the suction nozzle (5). The suction valve (6) is electrically connected to the controller (7) through the power switch of the processing unit (8) so as to realize the linkage opening and closing of the suction valve (6) and the power switch of the processing unit (8).

5. The efficient dust removal system for cleaning accumulated dust in pipelines according to claim 4, characterized in that, It also includes a pressure sensor for detecting the air pressure in the first end of the main pipe (1). The suction unit includes several fans electrically connected to the controller (7). The air inlet of the fan is connected to the main pipe (1) to provide air power. The pressure sensor is electrically connected to the controller (7) and sends a signal to the controller (7). The controller (7) controls the number of fans to be turned on according to the air pressure value in the first end of the main pipe (1) so as to keep the air pressure value in the first end of the main pipe (1) within a set range.

6. The efficient dust removal system for cleaning accumulated dust in pipelines according to claim 5, characterized in that, At least one of the aforementioned fans is electrically connected to a power supply via a frequency converter.

7. A method for cleaning pipe dust, applied to a dust removal system for efficiently cleaning accumulated dust in pipes as described in claim 5 or 6, wherein a suction valve (6) is provided at the suction nozzle (5), and the suction valve (6) is electrically connected to a controller (7) via a power switch of a processing unit, so as to realize the linkage opening and closing of the suction valve (6) and the power switch of the processing unit (8), characterized in that, Includes the following steps: A. The controller (7) controls the fan to start during the time period b. The auxiliary material passes through the main pipe (1) and is attached to the side wall of the filter material under the action of the wind. B. The suction valve (6) is opened in conjunction with the power supply of the processing unit (8); C. The pressure sensor sends a signal to the controller, and the controller (7) controls the number of fans to be turned on according to the pressure value in the first end of the main pipe (1) so as to keep the pressure in the first end of the main pipe (1) within the set range. D. The suction valve (6) is closed in conjunction with the power supply of the processing unit (8), and several of the dust removal valves (4) are closed one by one along the airflow direction; E. The controller (7) controls the fan to stop.

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