Electromagnetic rotation increasing device for pneumatic conveying pipeline

Abstract

The invention relates to the technical field of material conveying equipment, in particular to an electromagnetic rotation increasing device for a pneumatic conveying pipeline. The electromagnetic rotation increasing mechanism, the dustproof structure, the sealing structure, the cable sealing mechanism and the control module are designed in an integrated mode, and a complete pneumatic conveying efficiency increasing system is formed. All the components work together, the conveying efficiency is improved through electromagnetic rotation increasing, the system stability is guaranteed through a multi-stage sealing and dustproof structure, meanwhile, precise control is achieved by means of an intelligent module, the multiple problems of efficiency, abrasion, sealing and automatic control in traditional pneumatic conveying are solved, and the pneumatic conveying device has the remarkable advantages of being compact in structure, comprehensive in function and high in applicability.

Description

Technical Field

[0001] The invention relates to the technical field of material conveying equipment, in particular to an electromagnetic swirl increaser for a pneumatic conveying pipeline. Background Art

[0002] Pneumatic conveying, a widely used material transfer method in the industrial sector, leverages its airtightness and automation advantages to efficiently transport powdered and granular materials in mining, chemical, and power plants. However, with the expansion of production scale and the increasing demand for process refinement, traditional pneumatic conveying systems are increasingly facing bottlenecks in efficiency, stability, and material protection, necessitating technological innovation to adapt to the demands of modern industry.

[0003] The main defects of the existing technology:

[0004] Imbalance between conveying efficiency and energy consumption: Dilute phase conveying relies on high air flow velocity to keep materials suspended, resulting in serious waste of gas kinetic energy (energy consumption is 40% to 60% higher than dense phase); although dense phase conveying reduces flow velocity, it is easy to cause material deposition and blockage. The deposition rate at the end of horizontal pipelines is as high as 20% to 30%, requiring frequent shutdowns for dredging.

[0005] Uneven material distribution and wear problems: About 60% to 70% of the material accumulates at the bottom of the pipeline, causing increased local wear (the average annual wear of the carbon steel pipe wall is 0.8 to 1.2 mm), increased air flow resistance (system pressure increases by 15% to 25%), and a material breakage rate as high as 8% to 12%, affecting product quality and equipment life.

[0006] Limitations of existing swirl increasing technology: Traditional mechanical swirl increasers (such as blade type) have defects such as easy jamming of transmission components, poor adjustment flexibility, and insufficient sealing performance. The gas leakage rate exceeds 5% under high-pressure scenarios, and the effective range of swirl is only 8-10 times the diameter of the pipe, which is difficult to meet the needs of long-distance and high-load transportation.

[0007] It can be seen from this that there is an urgent need for an electromagnetic swirl enhancement technology that can generate a controllable swirl field through non-contact electromagnetic drive to replace the traditional mechanical disturbance method. Summary of the Invention

[0008] To avoid and overcome the technical problems existing in the prior art, the present invention provides an electromagnetic swirl increaser for pneumatic conveying pipelines. Through the synergistic effect of an electromagnetic swirl increaser mechanism, a four-stage backflow and dustproof structure, and a multi-stage sealing design, this invention achieves a technological breakthrough by dynamically adjusting the swirl intensity, reducing gas leakage, and extending the effective swirl distance. This provides an innovative solution to addressing efficiency, wear, and stability issues in pneumatic conveying.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] An electromagnetic rotation increaser for a pneumatic conveying pipeline comprises an electromagnetic rotation increase mechanism, a four-stage anti-return dog tooth dust-proof structure, a cap-shaped multi-stage sealing structure, a multi-stage cable sealing mechanism, and a motor control and pipeline detection module; the four-stage anti-return dog tooth dust-proof structure is installed on both sides of the electromagnetic rotation increase mechanism, the cap-shaped multi-stage sealing structure is installed at both ends of the four-stage anti-return dog tooth dust-proof structure and the electromagnetic rotation increase mechanism, the multi-stage cable sealing mechanism is installed on the outer surface of the electromagnetic rotation increase mechanism near the port, and the motor control and pipeline detection module is installed inside the electromagnetic rotation increase mechanism.

[0011] As a further solution of the present invention: the electromagnetic rotation-increasing mechanism includes a shell, an electromagnetic rotor, a stator fixing bolt, a stator fixing nut, a rolling bearing, a stator, a magnet fixing bolt, and a rubidium magnet; the stator is coaxially fixed to the shell through the stator fixing bolt and the stator fixing nut; the electromagnetic rotor is coaxially rotated and installed in the stator through the rolling bearing; the rubidium magnet is fixed to the outer surface of the electromagnetic rotor through the magnet fixing bolt.

[0012] As a further solution of the present invention: the four-stage anti-return dog tooth dustproof structure includes a front connector and a rear connector; the front connector is embedded in the large end of the electromagnetic rotor, and the rear connector is sleeved on the outer surface of the small end of the electromagnetic rotor.

[0013] As a further solution of the present invention: the cap-type multi-stage sealing structure includes a semicircular cap, a cap-type sealing sleeve, a semicircular compression sealing piece, a compression bolt, a small sealing ring, a large sealing ring, an internal connecting bolt, and an internal connecting nut; the large sealing ring and the small sealing ring are concentrically installed in the sealing groove composed of the shell and the front connecting head and the rear connecting head, the internal connecting bolt and the internal connecting nut are fastened to the connection between the shell and the front connecting head and the rear connecting head, the cap-type sealing sleeve is sleeved on the outer surface of the connection, the semicircular cap covers the outer surface of the cap-type sealing sleeve, the semicircular compression sealing piece is embedded in the installation groove of the semicircular cap, and the front end of the compression bolt passes through the threaded hole on the semicircular cap and compresses the semicircular compression sealing piece.

[0014] As a further solution of the present invention: the multi-stage cable sealing mechanism includes a rubber cable sealing cone and a threaded compression sealing cover; the rubber cable sealing cone is embedded in the conical mounting hole on the shell, and the threaded compression sealing cover squeezes the rubber cable sealing cone through a threaded connection to achieve cable entrance sealing.

[0015] As a further solution of the present invention: the motor control and pipeline detection module includes a support plate, a motor control module, and a pipeline monitoring module; the support plate is fixed between the rolling bearing and the stator, the motor control module is installed on the outer frame of the support plate, and the pipeline monitoring module is installed on the inner circle of the support plate and close to the center of the pipeline.

[0016] As a further solution of the present invention, the electromagnetic rotor is driven by the rotating magnetic field generated by the stator, driving the rubidium magnet to rotate synchronously, so that the airflow in the pipeline of the electromagnetic rotor forms a spiral upward vortex field.

[0017] As a further solution of the present invention: the front connector and the rear connector of the four-stage non-return dog tooth dustproof structure form a multi-stage labyrinth seal, which cooperates with the centrifugal force of the electromagnetic rotor to prevent materials and dust from entering the motor cavity.

[0018] As a further solution of the present invention: the cap-shaped multi-stage sealing structure forms a double radial seal and an axial seal through a large sealing ring, a small sealing ring and a semicircular compression sealing sheet to prevent gas leakage.

[0019] As a further solution of the present invention: the pipeline monitoring module collects the flow rate and pressure data of the mixed flow in the pipeline in real time, and transmits them to the motor control module to dynamically adjust the speed and excitation intensity of the electromagnetic rotor.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By integrating the electromagnetic spin-increasing mechanism, dust-proof structure, sealing structure, cable sealing mechanism, and control module, a complete pneumatic conveying efficiency-enhancing system has been formed. These components work together to improve conveying efficiency through electromagnetic spin-increasing, while ensuring system stability through multi-stage sealing and dust-proof structures. Furthermore, intelligent modules enable precise control, addressing the multiple pain points of traditional pneumatic conveying, including efficiency, wear, sealing, and automated control. The system boasts significant advantages, including compact structure, comprehensive functionality, and strong applicability.

[0022] 2. The electromagnetic spin-increasing mechanism utilizes an electromagnetic drive combination of a "stator + electromagnetic rotor + nepheline magnet." Through the precise assembly of mounting bolts and bearings, it achieves efficient coupling between the rotating magnetic field and the permanent magnet. This structure not only generates a strong swirling flow field to enhance material suspension, but also reduces mechanical friction losses through rolling bearings. Combined with the enclosed housing design, this significantly improves the efficiency of converting electromagnetic energy into fluid kinetic energy, while also ensuring the stability and durability of the drive system.

[0023] 3. The four-stage non-return dog tooth dustproof structure uses the "embedded large end + sleeved small end" design of the front and rear connectors to form a multi-stage dog tooth labyrinth seal. When the electromagnetic rotor rotates, centrifugal force further removes material particles close to the seal gap. This dual mechanism effectively prevents dust and material from entering the motor cavity. Compared with traditional single-stage seal structures, this significantly improves dust prevention efficiency, significantly extends the service life of the motor and bearings, and reduces maintenance costs.

[0024] 4. The cap-type multi-stage seal structure utilizes a triple-seal design consisting of two sealing rings, a compression seal, and a cap-type outer sleeve. The large and small sealing rings form a radial double seal, while the semicircular compression seal fills the gap through axial compression. The cap-type seal sleeve and cap provide external protection. This structure can withstand a conveying pressure of 0.6-1.2 MPa and a gas leakage rate of less than 0.05 m³ / h, significantly outperforming traditional flange seals and ensuring system airtightness in high-pressure pneumatic conveying scenarios.

[0025] 5. The multi-stage cable sealing mechanism utilizes the elastic deformation properties of the rubber cable sealing cone. Through mechanical compression of the threaded sealing cap, the cone surface tightly conforms to the cable surface and the mounting hole wall, forming an adaptive seal. This structure is compatible with cables of various specifications from Φ8 to Φ20 mm and maintains stable sealing performance within a temperature range of -20°C to 80°C, effectively preventing transmission gas leakage through the cable interface, improving the system's environmental adaptability and safety.

[0026] 6. The motor control and pipeline detection modules are arranged in layers on the support plate, with the motor control module positioned on the outside for easy wiring and the pipeline monitoring module positioned near the center of the pipeline for precise data collection. This design achieves a closed "detection-control" loop: the monitoring module provides real-time feedback on parameters such as flow rate and pressure, while the control module dynamically adjusts the rotor speed, enabling the system to respond to changes in operating conditions within 100ms and keeping conveying efficiency fluctuations within ±5%, significantly enhancing the automation and intelligent capabilities of pneumatic conveying.

[0027] 7. The electromagnetic rotor, driven by the stator magnetic field and enhanced by nepheline magnets, generates an adjustable swirl field with a rotational speed range of 500-4000 r / min. This spiraling swirl creates a uniformly distributed annular flow within the pipeline. Compared to traditional turbulent flow conveying, it reduces material deposition by 85% and extends conveying distances by 3-5 times, making it particularly suitable for long-distance, high-flow, dense-phase pneumatic conveying.

[0028] 8. The labyrinthine design of the four-stage anti-return dog tooth dust-proof structure works synergistically with centrifugal force to form a dual dust-proof mechanism of "physical blocking + kinetic repulsion." Measured data shows that this structure achieves a filtration efficiency of 99.2% for dust particles ≥5μm, effectively protecting the precision components within the electromagnetic spin-increasing mechanism and reducing the motor failure frequency from an average of 4-6 times per year in traditional systems to less than 0.5 times, significantly improving equipment reliability.

[0029] 9. The cap-shaped multi-stage seal structure combines dual radial and axial seals to create a three-dimensional sealing barrier. When conveying abrasive materials such as pulverized coal and cement, this structure can extend the seal life to 12-18 months (compared to the 3-6 months of traditional seals). It also reduces energy losses caused by gas leakage to less than 1.5% of the total system energy consumption, achieving both energy savings and a long lifespan.

[0030] 10. A closed-loop feedback system for pipeline monitoring and motor control automatically adjusts swirl intensity based on material characteristics (such as particle size and density) and conveying conditions (such as distance and concentration). For example, when conveying fragile materials, the system automatically reduces rotor speed by 30% to 50%, lowering the material crushing rate from 8% to 12% in traditional processes to below 2%. Simultaneously, by optimizing flow rates, it reduces conveying energy consumption by 15% to 20%, achieving multi-objective optimization of efficiency, quality, and energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention.

[0032] Figure 2 It is a sectional view of the overall structure of the present invention.

[0033] Figure 3 It is a cross-sectional view of the four-stage anti-return dog tooth dust-proof structure of the present invention.

[0034] Figure 4 It is a cross-sectional view of the cap-type multi-stage sealing structure of the present invention.

[0035] Figure 5 It is an overall cross-sectional view of the multi-stage cable sealing mechanism of the present invention.

[0036] Figure 6 It is a partial cross-sectional view of the multi-stage cable sealing mechanism of the present invention.

[0037] Figure 7 It is a structural diagram of the motor control and pipeline detection module of the present invention.

[0038] In the figure: 1. Electromagnetic rotation-increasing mechanism; 101. Housing; 102. Electromagnetic rotor; 103. Stator fixing bolt; 104. Stator fixing nut; 105. Rolling bearing; 106. Stator; 107. Magnet fixing bolt; 108. Rubidium magnet; 2. Four-stage anti-return dog tooth dust-proof structure; 201. Front connector; 202. Rear connector; 3. Cap-type multi-stage sealing structure; 301. Semicircular cap; 302. Cap-type sealing sleeve; 303. Semicircular pressing sealing piece; 304. Pressing bolt; 305. Small sealing ring; 306. Large sealing ring; 307. Inner connecting bolt; 308. Inner connecting nut; 4. Multi-stage cable sealing mechanism; 401. Rubber cable sealing cone; 402. Threaded pressing sealing cover; 5. Motor control and pipeline detection module; 501. Support plate; 502. Motor control module; 503. Pipeline monitoring module. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] 1. Components

[0041] See also Figure 1 The present invention includes an electromagnetic rotation-increasing mechanism 1, a four-stage anti-reverse dog tooth dust-proof structure 2, a cap-shaped multi-stage sealing structure 3, a multi-stage cable sealing mechanism 4, and a motor control and pipeline detection module 5. The specific components are as follows:

[0042] 1. Electromagnetic rotation-increasing mechanism

[0043] Housing 101 and stator 106 installation: Slide stator 106 over the outside of electromagnetic rotor 102, ensuring they are coaxial. Then, install the assembled stator 106 and electromagnetic rotor 102 into housing 101, aligning the mounting lugs at each end of stator 106 with the mounting lugs inside housing 101. Then, insert stator fixing bolts 103 through the locating holes in the two aligned lugs and threadably engage stator fixing nuts 104, securing stator 106 within housing 101. Conventional stator fixing methods can also be used to form a sealed electromagnetic drive chamber within housing 101.

[0044] The electromagnetic rotor 102 is secured to the rubidium magnets 108 using magnet securing bolts 107 within dedicated mounting holes on the outer surface of the electromagnetic rotor 102, ensuring that the rubidium magnets 108 are evenly distributed and securely fixed. The lengths of the rubidium magnets 108 are parallel to the axial direction of the electromagnetic rotor 102, and the rubidium magnets 108 are arranged at equal intervals around the circumference of the electromagnetic rotor 102, with gaps between adjacent electromagnetic rotors 102.

[0045] Installation of rolling bearings 105: Rolling bearings 105 are installed at both ends of the electromagnetic rotor 102. The outer ring of the rolling bearing 105 is fixed to the inner wall of the housing 101, and the inner ring of the rolling bearing 105 is coaxially sleeved on the electromagnetic rotor 102 to support the rotation of the electromagnetic rotor 102 and reduce friction.

[0046] 2. Four-level anti-return dog tooth dustproof structure

[0047] The front connector 201 is fixed: the front connector 201 is embedded in the large end of the electromagnetic rotor 102, and the electromagnetic rotor 102 and the front connector 201 rotate relative to each other to form a front dynamic seal of the dustproof structure.

[0048] Assembly of the rear connector 202: The rear connector 202 is sleeved on the outer surface of the small end of the electromagnetic rotor 102. The electromagnetic rotor 102 and the rear connector 202 rotate relative to each other, and together with the front connector 201, they form a four-stage anti-return dog tooth structure to prevent materials and dust from reversely entering the motor cavity.

[0049] 3. Cap-type multi-stage sealing structure

[0050] Sealing Ring Installation: Flanges are coaxially fixed to both ends of the housing 101. Flanges are also coaxially fixed to the locations where the front connector 201 and the rear connector 202 mate with the housing 101. Sealing grooves are coaxially defined on the outer surfaces of both flanges of the housing 101. The large sealing ring 306 and the small sealing ring 305 are coaxially inserted into their corresponding sealing grooves, with the flange end faces of the front connector 201 and the rear connector 202 pressed against the sealing rings to form a double radial seal.

[0051] Internal connection fixation: The housing 101 is fastened to the flange surfaces of the front connector 201 and the rear connector 202 by means of the internal connection bolts 307 and the internal connection nuts 308 to ensure that the sealing groove compacts the sealing ring.

[0052] External seal assembly installation: A cap-type sealing sleeve 302 is placed outside the flange connection and covered with a semicircular cap 301. A semicircular compression seal 303 is inserted into the mounting groove of the semicircular cap 301. A compression bolt 304, threaded onto the semicircular cap 301, presses the seal against the cap-type sealing sleeve, forming an axial seal and further preventing gas leakage.

[0053] 4. Multi-stage cable sealing mechanism

[0054] Rubber sealing cone positioning: Insert the rubber cable sealing cone 401 into the conical mounting hole on the housing 101, ensuring that the cone surface tightly fits the hole wall.

[0055] Threaded compression seal: Screw the threaded compression seal cover 402 into the mounting hole, compress the rubber cable sealing cone 401 by threading, causing it to deform and clamp the cable, achieving airtight closure at the cable inlet.

[0056] 5. Motor control and pipeline monitoring module

[0057] Support plate fixation: Inside the housing 101 between the rolling bearing 105 and the stator 106, fix the support plate 501 with bolts to ensure stable module installation.

[0058] Module installation: Install the motor control module 502 on the outer edge of the support plate 501 for easy connection of external power supply and control circuit; install the pipeline monitoring module 503 inside the support plate 501 near the pipeline center to accurately detect the parameters of the gas and material mixed flow (such as flow rate, pressure, material concentration, etc.).

[0059] II. Workflow and principles

[0060] 1. Electromagnetic spin-up drive

[0061] When the motor control module 502 is powered on, the stator 106 is energized to generate a rotating magnetic field, driving the electromagnetic rotor 102 to rotate at high speed. The rubidium magnet 108 on the surface of the electromagnetic rotor 102 interacts with the magnetic field, further enhancing the rotational driving force.

[0062] The rotation of the electromagnetic rotor 102 causes the gas and material mixed flow in the pipeline to produce a spiral upward rotational motion, forming a strong rotational flow field. The rotational flow effect can improve material suspension, reduce deposition, and evenly distribute material particles, reducing local wear and breakage.

[0063] 2. Dust prevention and sealing mechanism

[0064] Four-stage reverse-proof canine dust prevention structure: The canine-shaped structure of the front connector 201 and the rear connector 202 forms a multi-stage labyrinth seal, combined with the centrifugal force generated by the rotation of the electromagnetic rotor 102, preventing material and dust from moving backward into the motor cavity, protecting the internal bearings and electromagnetic components.

[0065] Cap-type multi-stage sealing structure and cable sealing mechanism: Through the multi-sealing design of large sealing ring 306, small sealing ring 305, semicircular compression seal 303 and threaded compression, it is ensured that there is no gas leakage at the pipeline connection and cable inlet, maintaining the pressure stability of the pneumatic conveying system.

[0066] 3. Detection and control

[0067] Pipeline monitoring module: collects data such as flow rate and pressure of the mixed flow in the pipeline in real time and transmits it to the motor control module 502.

[0068] Motor control module: Dynamically adjusts the speed and excitation intensity of the electromagnetic rotor 102 according to the detection data to achieve precise control of the swirl intensity and adapt to different material characteristics and conveying conditions (such as long-distance conveying, high-concentration materials, etc.).

[0069] 3. Application Scenarios and Adjustment Methods

[0070] Conventional pneumatic conveying system: The electromagnetic vortex increaser is connected in series in the conveying pipeline, and the standard speed (such as 1500-3000r / min) is set through the motor control module. It is suitable for medium-distance conveying of powdery or granular materials.

[0071] Long-distance / dense-phase conveying: Increase rotor speed and excitation intensity to enhance the swirl effect to increase conveying distance and material concentration. At the same time, the monitoring module adjusts parameters in real time to avoid pipeline blockage.

[0072] Conveying fragile materials: Reduce the rotor speed, reduce the particle collision speed, and combine with the swirl flow's uniform force characteristics to reduce the material breakage rate. It is suitable for scenes with high requirements for material integrity such as food and medicine.

[0073] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An electromagnetic swirl increaser for pneumatic conveying pipelines, characterized by: The invention comprises an electromagnetic rotation-increasing mechanism (1), a four-stage anti-return dog tooth dust-proof structure (2), a cap-shaped multi-stage sealing structure (3), a multi-stage cable sealing mechanism (4), and a motor control and pipeline detection module (5); the four-stage anti-return dog tooth dust-proof structure (2) is installed on both sides of the electromagnetic rotation-increasing mechanism (1), the cap-shaped multi-stage sealing structure (3) is installed on both ends of the four-stage anti-return dog tooth dust-proof structure (2) and the electromagnetic rotation-increasing mechanism (1), the multi-stage cable sealing mechanism (4) is installed on the outer surface of the electromagnetic rotation-increasing mechanism (1) near a port, and the motor control and pipeline detection module (5) is installed inside the electromagnetic rotation-increasing mechanism (1).

2. The electromagnetic swirl increaser for pneumatic conveying pipelines according to claim 1, characterized in that: The electromagnetic rotation-increasing mechanism (1) comprises a housing (101), an electromagnetic rotor (102), a stator fixing bolt (103), a stator fixing nut (104), a rolling bearing (105), a stator (106), a magnet fixing bolt (107), and a rubidium magnet (108); the stator (106) is coaxially fixed in the housing (101) via the stator fixing bolt (103) and the stator fixing nut (104); the electromagnetic rotor (102) is coaxially rotatably mounted in the stator (106) via the rolling bearing (105); and the rubidium magnet (108) is fixedly mounted on the outer surface of the electromagnetic rotor (102) via the magnet fixing bolt (107).

3. The electromagnetic swirl increaser for pneumatic conveying pipelines according to claim 2, characterized in that: The four-stage anti-reverse dog tooth dustproof structure (2) comprises a front connector (201) and a rear connector (202); the front connector (201) is embedded in the large end of the electromagnetic rotor (102), and the rear connector (202) is sleeved on the outer surface of the small end of the electromagnetic rotor (102).

4. The electromagnetic swirl increaser for pneumatic conveying pipelines according to claim 3, characterized in that: The cap-type multi-stage sealing structure (3) comprises a semicircular cap (301), a cap-type sealing sleeve (302), a semicircular pressing sealing sheet (303), a pressing bolt (304), a small sealing ring (305), a large sealing ring (306), an inner connecting bolt (307), and an inner connecting nut (308); the large sealing ring (306) and the small sealing ring (305) are coaxially installed in a sealing groove formed by the housing (101) and the front connecting head (201) and the rear connecting head (202); the inner connecting bolt (307) The inner connecting nut (308) is fastened to the connection between the shell (101) and the front connecting head (201) and the rear connecting head (202); the cap-type sealing sleeve (302) is sleeved on the outer surface of the connection; the semicircular cap (301) covers the outer surface of the cap-type sealing sleeve (302); the semicircular pressing sealing piece (303) is embedded in the installation groove of the semicircular cap (301); the front end of the pressing bolt (304) passes through the threaded hole on the semicircular cap (301) and presses the semicircular pressing sealing piece (303).

5. The electromagnetic swirl increaser for pneumatic conveying pipelines according to claim 4, characterized in that: The multi-stage cable sealing mechanism (4) comprises a rubber cable sealing cone (401) and a threaded compression sealing cover (402); the rubber cable sealing cone (401) is embedded in a conical mounting hole on the housing (101), and the threaded compression sealing cover (402) squeezes the rubber cable sealing cone (401) through a threaded connection to achieve cable inlet sealing.

6. The electromagnetic swirl increaser for pneumatic conveying pipelines according to claim 5, characterized in that: The motor control and pipeline detection module (5) comprises a support plate (501), a motor control module (502), and a pipeline monitoring module (503); the support plate (501) is fixed between the rolling bearing (105) and the stator (106), the motor control module (502) is installed on the outer frame of the support plate (501), and the pipeline monitoring module (503) is installed on the inner circle of the support plate (501) and close to the center of the pipeline.

7. An electromagnetic swirl increaser for pneumatic conveying pipelines according to any one of claims 1 to 6, characterized in that: The electromagnetic rotor (102) is driven by a rotating magnetic field generated by a stator (106), driving the rubidium magnet (108) to rotate synchronously, so that the airflow in the pipeline of the electromagnetic rotor (102) forms a spiral upward vortex field.

8. The electromagnetic swirl increaser for pneumatic conveying pipelines according to claim 7, characterized in that: The front connector (201) and the rear connector (202) of the four-stage anti-return dog tooth dustproof structure (2) form a multi-stage labyrinth seal, which cooperates with the centrifugal force of the electromagnetic rotor (102) to prevent materials and dust from entering the motor cavity.

9. The electromagnetic swirl increaser for pneumatic conveying pipelines according to claim 8, characterized in that: The cap-shaped multi-stage sealing structure (3) forms a double radial seal and an axial seal through a large sealing ring (306), a small sealing ring (305) and a semicircular pressing sealing sheet (303) to prevent gas leakage.

10. The electromagnetic swirl increaser for pneumatic conveying pipelines according to claim 9, characterized in that: The pipeline monitoring module (503) collects the flow velocity and pressure data of the mixed flow in the pipeline in real time, and transmits the data to the motor control module (502) to dynamically adjust the rotation speed and excitation intensity of the electromagnetic rotor (102).

Images