A master-slave distributed dust removal device based on stertor tube principle and control method

Abstract

The application provides a master-slave distributed dust removal device and control method based on the principle of Stetta tube, relates to the field of dust removal systems, and aims at the problem that dust generated during loading of bulk dry bulk materials is difficult to effectively remove. A dust removal cover is arranged to be connected to a discharge opening, a main dust suction port is arranged on the inner wall of the inlet end of the dust removal cover, and a slave dust suction port distributed along a spiral line is arranged on the inner wall of the outlet end of the dust removal cover, so that air flow enters the dust removal cover in the form of spiral vortex, air with more dust content close to the inner wall of the dust removal cover enters the slave dust suction port, and air with less dust content located in the center of the dust removal cover enters the main dust suction port, thereby improving the dust separation effect and increasing the dust suction coverage.

Description

Technical Field

[0001] This invention relates to the field of dust removal systems, specifically to a master-slave distributed dust removal device and control method based on the Stettor tube principle. Background Technology

[0002] Various resources, primarily in the form of bulk dry cargo, involve a massive volume of logistics and transportation. During loading, most materials generate significant dust as they fall into the truck bed through the unloading port, impacting the surrounding environment and posing a considerable dust explosion hazard. Dust generated during loading can be controlled through various means, including technical prevention, source control, and environmental management. For example, wet dust collection involves spraying water mist to increase the surface moisture content of the materials, utilizing the collision, interception, and agglomeration of dust particles to reduce dust dispersion. Dry dust collection utilizes explosion-proof electrostatic precipitators and bag filters combined with belt conveyor systems to further reduce dust dispersion. Controlling the material transfer drop during loading can also reduce impact and dust generation. Covering the storage yard or loading area with tarpaulins or dust nets can also limit the range of dust dispersion.

[0003] Chinese patent (publication number CN114104781A) discloses a dust-free loading machine. The upper part of the funnel is surrounded by vertical side plates, and a side-mounted dust collector is installed on the outside of at least one vertical side plate. The dust collector is installed on the upper part of the funnel and is integrated with the dust collector. The dust in the funnel is directly absorbed from the upper part of the funnel. However, the coverage of the dust collector can only act on the inside of the funnel. It has a high treatment effect on the dust near the dust collector area. However, the dust raised by the material after passing through the funnel is outside the effective range of the dust collector. The dust collector is not effective in capturing the dust that escapes outside the funnel. There is still a lot of dust in the loading area, which makes it difficult to meet the environmental requirements of the loading area. Summary of the Invention

[0004] The purpose of this invention is to address the deficiencies of existing technologies by providing a master-slave distributed dust collection device and control method based on the Stettal tube principle. The dust collection hood is connected to the discharge port. A main suction port is located on the inner wall of one inlet end of the dust collection hood, and slave suction ports distributed along a spiral line are located on the inner wall of one outlet end. This allows airflow to enter the dust collection hood in a spiral vortex pattern. Air with a higher dust content near the inner wall of the dust collection hood enters the slave suction ports, while air with a lower dust content located at the center of the dust collection hood enters the main suction port, improving dust separation efficiency and increasing the dust collection coverage area.

[0005] The first objective of this invention is to provide a master-slave distributed dust collection device based on the Stettor principle, employing the following scheme:

[0006] The dust collector includes a material discharge channel with openings at both ends. Along the material discharge direction, the cross-sectional area of ​​the material discharge channel gradually increases, and the end with the smaller cross-sectional area opens to connect to the discharge port.

[0007] The main suction assembly includes multiple main suction elements, which are arranged in the material discharge channel near the discharge port. The main suction elements are provided with main suction ports facing the material discharge channel.

[0008] The dust collection assembly includes multiple dust collection elements arranged on the inner wall of the material discharge channel and distributed along a spiral trajectory. The dust collection element at the starting point of the spiral trajectory is located at the end of the material discharge channel away from the discharge port. The dust collection element is provided with a dust collection port that connects to the material discharge channel.

[0009] Furthermore, the main suction element and the secondary suction element are respectively connected to an adjustment mechanism, which can change the orientation of the main suction port or the secondary suction port.

[0010] Furthermore, the spiral trajectory is distributed around the axis of the material discharge channel, and all the dust collection elements are distributed sequentially and at intervals along the spiral trajectory.

[0011] Furthermore, a sensor is installed inside the dust removal hood. The sensor measures the dust concentration information at the installation location and sends it to the controller.

[0012] Furthermore, the main vacuuming element is connected to the main vacuum cleaner, the secondary vacuuming element is connected to the secondary vacuum cleaner, and the main vacuum cleaner and the secondary vacuum cleaner are respectively connected to the controller, which is used to control the operating parameters of the main vacuum cleaner.

[0013] Furthermore, the main vacuum cleaner and the slave vacuum cleaner are respectively connected to a dust separator, which has a gas outlet and a dust outlet, and the dust outlet is connected to a dust collection container.

[0014] Furthermore, the multiple main suction elements are distributed around the discharge port, and the material output from the discharge port passes through the plane where the main suction elements are distributed.

[0015] Furthermore, the dust removal hood is trapezoidal, with the large cross-sectional area end of the material discharge channel corresponding to the bottom surface of the trapezoidal dust removal hood and the small cross-sectional area end corresponding to the top surface of the trapezoidal dust removal hood, so that a spiral vortex is formed inside the dust removal hood when the dust collection element and the main dust collection element are working.

[0016] A second objective of this invention is to provide a method for operating a master-slave distributed dust collection device based on the Stettor principle as described in the first objective, comprising:

[0017] The small cross-sectional area is opened at one end and connected to the discharge port of the external material conveying component, so that the dust hood, main dust collection component and secondary dust collection component move with the discharge port;

[0018] Adjust the position of the dust hood so that the discharge port faces the material receiving position and the dust hood is overlaid on the material receiving position. When the discharge port outputs material, the main dust collection component and the secondary dust collection component work.

[0019] When material is discharged from the discharge port, dust is raised near the material receiving position. The dust collection components and the main dust collection components work to form a spiral vortex inside the dust collection hood. At the same time, a negative pressure is formed inside the dust collection hood, which draws the dust that has escaped from around the dust collection hood into the dust collection hood.

[0020] Dust rises spirally along the inner wall of the dust collector under the action of the spiral vortex and is absorbed by the dust collection element. After the dust is separated, the relatively clean air rises along the axis of the dust collector against the direction of material falling and is absorbed by the main dust collection element, thus realizing dust removal when the material falls.

[0021] Furthermore, the orientation of the main and secondary suction elements is adjusted to create a spiral vortex inside the dust hood; the dust concentration inside the dust hood is measured, and the operating parameters of the main and secondary suction elements are adjusted accordingly.

[0022] Compared with the prior art, the advantages and positive effects of this invention are:

[0023] (1) To address the problem that dust generated during the loading of bulk dry cargo is difficult to effectively remove, a dust collector hood is arranged to connect to the unloading port. The main dust collection port is set on the inner wall of the inlet end of the dust collector hood, and the secondary dust collection port is set on the inner wall of the outlet end along a spiral line. This allows the airflow to enter the dust collector hood in a spiral vortex shape. The air with a higher dust content near the inner wall of the dust collector hood enters the secondary dust collection port, while the air with a lower dust content in the center of the dust collector hood enters the main dust collection port, thereby improving the dust separation effect and increasing the dust collection coverage area.

[0024] (2) Through the combined action of the main dust collection component and the secondary dust collection component, a vortex can be formed inside the dust collection hood. Based on the principle of Stetta centrifugal force, the impurity-containing air inside the dust collection hood can be collected. The negative pressure inside the dust collection hood can be used to capture the impurity-containing air escaping around the dust collection hood, reduce the escape of dust carried by the air, realize the working state of intermediate material dropping and surrounding suction dust removal, and improve the dust removal effect.

[0025] (3) The master-slave distributed dust collection structure is adopted, which can process the impurity-laden airflow drawn by the master dust collection component and the slave dust collection component separately. The slave dust collection component can promote the formation of vortex and can separately separate the airflow discharged from the slave dust collection component with more impurities. The master dust collection component can draw in the relatively clean gas in the center to form the required vortex operation state and improve the filtration efficiency.

[0026] (4) By arranging a suction element at one end of the large cross-sectional opening of the dust hood, the distribution of the suction port is divided into two layers. The first layer of suction ports is distributed in the upper part of the dust hood, and the direction is counterclockwise. While collecting dust, it forms a preliminary air vortex. The second layer of suction ports is distributed at the bottom of the dust hood, and the distribution direction is counterclockwise. It helps to form an air vortex in the dust hood and collect the dust at the bottom. Attached Figure Description

[0027] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0028] Figure 1 This is a schematic diagram of the master-slave distributed dust removal device based on the Stettor principle in Embodiments 1 and 2 of the present invention.

[0029] Figure 2 This is a schematic diagram of the dust collector hood of the master-slave distributed dust collection device based on the Stettor principle in Embodiments 1 and 2 of the present invention.

[0030] Figure 3 This is a schematic diagram showing the main suction element and the secondary suction element distributed in the dust collection hood in embodiments 1 and 2 of the present invention.

[0031] Among them, 1. dust hood, 2. secondary suction element, 3. spiral vortex, 4. main suction element, 5. discharge port, 6. adjustment mechanism, 7. controller, 8. suction control component, 9. secondary vacuum cleaner, 10. main vacuum cleaner, 11. dust collection container. Detailed Implementation

[0032] Example 1

[0033] In a typical embodiment of the present invention, such as Figures 1-3 As shown, a master-slave distributed dust removal device based on the Stettor tube principle is presented.

[0034] During the transportation and loading of bulk dry cargo, dust is generated when it falls into the truck bed. The escape of this dust affects the environment around the loading area, and traditional dust removal facilities and methods are insufficient to handle the escaped dust. Therefore, this embodiment provides a master-slave distributed dust removal device based on the Stellate tube principle. A master dust collection component and a slave dust collection component are arranged inside the dust collection hood 1, which, during operation, create a spiral vortex 3 within the dust collection hood 1. This not only improves the absorption of dust within the dust collection hood 1 but also captures dust escaping outside the dust collection hood 1, improving the dust removal effect, meeting the dust reduction requirements during material loading, reducing the impact on the surrounding environment, and lowering safety hazards.

[0035] like Figure 1As shown, the master-slave distributed dust collection device based on the Stettal tube principle includes a dust collection hood 1, a main dust collection component, and a slave dust collection component. A material discharge channel is formed inside the dust collection hood 1. After the dust collection hood 1 is installed at the discharge port 5, the material output from the discharge port 5 can pass through the material discharge channel and fall into the compartment of the transfer vehicle. The main dust collection component and the slave dust collection component are respectively installed inside the dust collection hood 1. The main dust collection component is located at one end of the material discharge channel near the discharge port 5 and is connected to the dust collection hood 1. The slave dust collection components are distributed in a spiral trajectory within the material discharge channel, starting from the end of the material discharge channel away from the discharge port 5 and gradually arranged towards the discharge port 5.

[0036] During operation, the main and secondary suction components draw in air, collecting impurities from the dust collection hood based on the principle of centrifugal force. Because the secondary suction components are arranged in a spiral pattern, as the airflow enters the dust collection hood, it encounters the spiral-shaped suction ports. Guided by these ports, the airflow follows the spiral trajectory, forming a spiral vortex. This not only increases the suction coverage but also causes the airflow to rotate continuously, facilitating dust separation and capture. The main suction component draws air from the center, further promoting the formation of the spiral airflow.

[0037] like Figure 2 As shown, the material discharge channel inside the dust collector hood 1 has openings at both ends. One end receives the material output from the discharge port 5, and the other end guides the received material into the carriage. Furthermore, in this embodiment, the material discharge direction is vertically downwards, and the horizontal cross-sectional area of ​​the material discharge channel gradually increases along this direction, resulting in a gradient structure of a small opening at the top and a large opening at the bottom for the dust collector hood 1. The smaller cross-sectional area opening connects to the discharge port 5, while the larger cross-sectional area opening at the other end allows the material to be diffused before being discharged.

[0038] Specifically, such as Figure 3 As shown, the dust hood 1 is a trapezoidal shape. The large cross-sectional area end of the material discharge channel corresponds to the bottom surface of the trapezoidal dust hood 1, and the small cross-sectional area end of the material discharge channel corresponds to the top surface of the trapezoidal dust hood 1. When the dust collection element 2 and the main dust collection element 4 are working, a spiral vortex 3 is formed inside the dust hood 1.

[0039] Since the main suction component and the spiral vortex 3 formed by the secondary suction component flow from bottom to top, the gradual structure of the dust hood 1 with a small opening at the top and a large opening at the bottom is conducive to the convergence of airflow, which makes the flow velocity continuously increase during the flow of the spiral vortex 3, thereby improving the dust separation effect.

[0040] like Figure 3As shown, the main suction assembly includes a main vacuum cleaner 10 and multiple main suction elements 4 connected to the main vacuum cleaner 10, arranged in the material discharge channel near the discharge port 5. The main suction elements 4 are provided with main suction ports facing the material discharge channel. The secondary suction assembly includes a secondary vacuum cleaner 9 and multiple secondary suction elements 2 connected to the secondary vacuum cleaner 9, arranged on the inner wall of the material discharge channel and distributed along a spiral trajectory. The secondary suction elements 2 are provided with secondary suction ports communicating with the material discharge channel.

[0041] The spiral trajectory is distributed around the axis of the material discharge channel, and all the dust collection elements 2 are distributed sequentially and at intervals along the spiral trajectory; multiple main dust collection elements 4 are distributed around the discharge port 5, and the material output from the discharge port 5 passes through the plane where the main dust collection elements 4 are located.

[0042] The dust collector hood 1 is a shell structure with an area that gradually increases from the inlet to the outlet. The main dust suction port is set on the inner wall of the inlet end of the dust collector hood 1, and the secondary dust suction ports are set on the inner wall of the outlet end along a spiral line. This allows the airflow to enter the dust collector hood 1 in a spiral vortex 3 shape. The air with a higher dust content near the inner wall of the dust collector hood 1 enters the secondary dust suction ports, while the air with a lower dust content located in the center of the dust collector hood 1 enters the main dust suction port, thereby improving the dust separation effect and increasing the dust suction coverage area.

[0043] The main vacuum cleaner 10 and the slave vacuum cleaner 9 are respectively connected to the controller 7. The controller 7 is used to control the operating parameters of the main vacuum cleaner 10. The main vacuum cleaner 10 and the slave vacuum cleaner 9 are respectively connected to a dust separator. The dust separator has a gas outlet and a dust outlet. The dust outlet is connected to the dust collection container 11.

[0044] like Figure 1 As shown, the main vacuum cleaner 10 and the slave vacuum cleaner 9 are connected to the vacuum control component 8. The vacuum control component 8 can receive the control information from the controller 7 and convert it into control signals to be sent to the main vacuum cleaner 10 and the slave vacuum cleaner 9 to adjust the air volume, air speed and other parameters of the main vacuum cleaner 10, as well as the air volume, air speed and other parameters of the slave vacuum cleaner 9.

[0045] To regulate the airflow and velocity of the main and secondary suction ports, sensors are installed inside the dust collection hood 1. These sensors, which can be dust concentration sensors, are distributed along the airflow path of the spiral vortex 3. Specifically, the sensors can be arranged between two adjacent secondary suction elements 2 and between adjacent main suction elements 4 to measure the dust concentration parameters at the working positions of the secondary suction elements 2 and the main suction elements 4.

[0046] After measuring the dust concentration parameters inside the dust collector hood 1, the air volume and wind speed of the main dust collection port and the secondary dust collection port are adjusted according to the dust concentration parameters to meet the dust removal requirements. In this embodiment, if the main dust collection port and the secondary dust collection port are working normally, the dust concentration measured near the secondary dust collection port should gradually decrease as the dust collection port moves closer to the discharge port 5 along the spiral trajectory. The dust concentration measured at the main dust collection port should be less than the dust concentration measured at the secondary dust collection port.

[0047] To ensure the formation of the spiral vortex 3, in this embodiment, the main suction element 4 and the secondary suction element 2 are respectively connected to an adjustment mechanism 6. The adjustment mechanism 6 can change the orientation of the main suction port or the secondary suction port, thereby promoting the formation of the spiral vortex 3. It can also actively adjust the orientation of the main suction port or the secondary suction port according to the dust concentration distribution, so that it faces the area with higher concentration, thereby improving the dust removal effect.

[0048] The adjustment mechanism 6 can adopt structures such as servo motor, swing cylinder, electric push rod, etc., which can drive the main suction element 4 and the secondary suction element 2 to swing or rotate, so that the orientation of the main suction port and the secondary suction port changes to meet the required direction.

[0049] The main suction element 4 and the secondary suction element 2 can adopt a cylindrical structure, with one end connected to the main vacuum cleaner 10 and the secondary vacuum cleaner 9 through the suction channel, and the other end facing the inside of the material drop channel of the suction hood.

[0050] like Figure 1 and Figure 2 As shown, main suction ports and secondary suction ports are distributed inside the dust collection hood 1. The main suction ports are located near the discharge port 5, while the secondary suction ports are distributed around the perimeter of the dust collection hood 1. The main suction ports, located near the discharge port 5, open vertically downwards. Some of the dust generated by the material passing through the discharge port 5 is initially collected by the main suction ports, forming an upward main airflow. The secondary suction ports are divided into upper and lower layers. The first layer of secondary suction ports is distributed in the upper part of the dust collection hood 1, with a counterclockwise distribution, collecting dust while forming an initial air vortex. The second layer of secondary suction ports is distributed at the bottom of the dust collection hood 1, with a counterclockwise distribution, assisting in forming an air vortex within the dust collection hood 1 and collecting dust from the bottom.

[0051] During operation, the main suction port creates a locally controlled air vortex in the working area. The airflow accelerates spirally within the vortex, separating impurities from clean air. The area near the inner wall of the suction hood contains more dirty air with higher levels of dust and impurities, while the central area contains the lightest and cleanest airflow. The airflow and impurities from the inner wall of the suction hood enter the suction channel for purification and dust removal; the remaining airflow enters the main suction channel for further purification and dust removal, achieving highly efficient separation of dust and air.

[0052] The dust collection hood adopts a trapezoidal shell structure, which is compatible with existing loading system structures and can be coupled with corresponding material conveying structures. The main suction port is arranged at a certain angle and position around the unloading port 5, while the secondary suction port is located at the lower periphery of the dust collection hood 1. During operation, a locally controllable air vortex is formed, which carries most of the dust into the main and secondary dust collection structures, avoiding dust generation. At the same time, the centrifugal effect generated by the air vortex separates impurities from clean air. The middle airflow is the lightest and cleanest air, while the dirty air with more impurities and dust near the inner wall of the dust collection hood enters the secondary suction channel, achieving separation of dust and air and collecting the dust.

[0053] Dust collector hood 1 is equipped with a fixed point for dust sensor and other multi-source sensors to detect local dust flow in real time. The main suction port and the secondary suction port are respectively equipped with adjustment mechanism 6, which can adjust the direction. Together with the controller 7, the dust flow is monitored in real time, and the direction of the secondary suction port and the suction power are adjusted to achieve adaptive adjustment of the suction port, which is energy-saving and efficient.

[0054] Example 2

[0055] In another typical embodiment of the present invention, such as Figures 1-3 As shown, a working method of a master-slave distributed dust removal device based on the Stettor principle is given, which utilizes the master-slave distributed dust removal device based on the Stettor principle as in Example 1.

[0056] The small cross-sectional area is opened at one end and connected to the unloading port 5 of the external material conveying component, so that the dust removal hood 1, the main dust collection component and the secondary dust collection component move with the unloading port 5.

[0057] Adjust the position of the dust hood 1 so that the discharge port 5 faces the material receiving position and the dust hood 1 covers the material receiving position. When the discharge port 5 outputs material, the main dust collection component and the secondary dust collection component work.

[0058] When the material is discharged from the discharge port 5, dust is raised near the material receiving position. The dust collection component and the main dust collection component work to form a spiral vortex 3 in the dust collection hood 1. At the same time, a negative pressure is formed in the dust collection hood 1, which draws the dust that has escaped from around the dust collection hood 1 into the dust collection hood 1.

[0059] Dust rises spirally along the inner wall of the dust collector 1 under the action of the spiral vortex 3 and is absorbed by the dust collection element 2. After the dust is separated, the relatively clean air rises along the axis of the dust collector 1 against the direction of material falling and is absorbed by the main dust collection element 4, thus realizing dust removal when the material falls.

[0060] The orientation of the main suction element 4 and the secondary suction element 2 is adjusted to form a spiral vortex 3 inside the dust hood 1; the dust concentration inside the dust hood is measured, and the operating parameters of the main suction element 4 and the secondary suction element 2 are adjusted accordingly.

[0061] During operation, the dust sensor detects changes in dust distribution in real time and transmits the data to the controller 7. Combining the dynamic distribution pattern with the global optimal and minimum entropy multi-fusion strategy, the controller adjusts the direction and airflow of the main suction port and the secondary suction port to ensure that the suction port can intelligently adjust its direction according to environmental changes.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A master-slave distributed dust collection device based on the Stettor principle, characterized in that, include: The dust collector includes a material discharge channel with openings at both ends. Along the material discharge direction, the cross-sectional area of ​​the material discharge channel gradually increases, and the end with the smaller cross-sectional area opens to connect to the discharge port. The main suction assembly includes multiple main suction elements, which are arranged in the material discharge channel near the discharge port. The main suction elements are provided with main suction ports facing the material discharge channel. The dust collection assembly includes multiple dust collection elements arranged on the inner wall of the material discharge channel and distributed along a spiral trajectory. The dust collection element at the starting point of the spiral trajectory is located at the end of the material discharge channel away from the discharge port. The dust collection element is provided with a dust collection port that connects to the material discharge channel.

2. The master-slave distributed dust removal device based on the Stettor principle as described in claim 1, characterized in that, The main suction element and the secondary suction element are respectively connected to an adjustment mechanism, which can change the orientation of the main suction port or the secondary suction port.

3. The master-slave distributed dust removal device based on the Stettor principle as described in claim 2, characterized in that, The spiral trajectory is distributed around the axis of the material discharge channel, and all the dust collection elements are distributed sequentially and at intervals along the spiral trajectory.

4. The master-slave distributed dust removal device based on the Stettor principle as described in claim 1, characterized in that, The dust collector is equipped with a sensor that measures the dust concentration at its installation location and sends the information to the controller.

5. The master-slave distributed dust removal device based on the Stettor principle as described in claim 4, characterized in that, The main vacuuming element is connected to the main vacuum cleaner, and the secondary vacuuming element is connected to the secondary vacuum cleaner. The main vacuum cleaner and the secondary vacuum cleaner are respectively connected to the controller, which is used to control the operating parameters of the main vacuum cleaner.

6. The master-slave distributed dust removal device based on the Stettor principle as described in claim 5, characterized in that, The main vacuum cleaner and the slave vacuum cleaner are respectively connected to a dust separator. The dust separator has a gas outlet and a dust outlet, and the dust outlet is connected to a dust collection container.

7. The master-slave distributed dust removal device based on the Stettor principle as described in claim 1, characterized in that, The multiple main suction components are distributed around the discharge port, and the material output from the discharge port passes through the plane where the main suction components are located.

8. The master-slave distributed dust removal device based on the Stettor principle as described in claim 1, characterized in that, The dust collector hood is trapezoidal, with the large cross-sectional area end of the material discharge channel corresponding to the bottom surface of the trapezoidal dust collector hood and the small cross-sectional area end corresponding to the top surface of the trapezoidal dust collector hood. When the dust collection element and the main dust collection element are working, a spiral vortex is formed inside the dust collector hood.

9. A method for operating a master-slave distributed dust collection device based on the Stettor principle, utilizing the master-slave distributed dust collection device based on the Stettor principle as described in any one of claims 1-8, characterized in that, include: The small cross-sectional area is opened at one end and connected to the discharge port of the external material conveying component, so that the dust hood, main dust collection component and secondary dust collection component move with the discharge port; Adjust the position of the dust hood so that the discharge port faces the material receiving position and the dust hood is overlaid on the material receiving position. When the discharge port outputs material, the main dust collection component and the secondary dust collection component work. When material is discharged from the discharge port, dust is raised near the material receiving position. The dust collection components and the main dust collection components work to form a spiral vortex inside the dust collection hood. At the same time, a negative pressure is formed inside the dust collection hood, which draws the dust that has escaped from around the dust collection hood into the dust collection hood. Dust rises spirally along the inner wall of the dust collector under the action of the spiral vortex and is absorbed by the dust collection element. After the dust is separated, the relatively clean air rises along the axis of the dust collector against the direction of material falling and is absorbed by the main dust collection element, thus realizing dust removal when the material falls.

10. The working method of the master-slave distributed dust removal device based on the Stettor principle as described in claim 9, characterized in that, Adjust the orientation of the main and secondary suction elements to create a spiral vortex inside the dust hood; measure the dust concentration inside the dust hood and adjust the operating parameters of the main and secondary suction elements accordingly.

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