High-pressure-resistant magnetic sealing rotary feeder

Abstract

A high-pressure-resistant magnetic sealing rotary feeder comprises a feeding assembly, a sealing assembly, a magnetic assembly, a driving assembly, a rotating shaft and a rotating shaft cylinder, the rotating shaft vertically penetrates through the rotating shaft cylinder, the upper end of the rotating shaft is in transmission connection with the feeding assembly, and the lower end of the rotating shaft is in transmission connection with the magnetic assembly. Sealing assemblies are arranged between the feeding assembly and the rotating shaft and between the rotating shaft barrel and the rotating shaft for tight sealing, and the driving assembly is in transmission connection with the magnetic assembly. According to the utility model, the magnetic component is additionally arranged on the driving part, so that the problems of sealing failure, leakage and pollution which are easily caused by mechanical sealing and packing sealing in the prior art are solved, and the sealing performance and the pressure-bearing grade of equipment are improved and dangerous media are ensured not to leak outwards by arranging the multi-stage sealing component.

Description

Technical Field

[0001] This utility model relates to the field of rotary feeding technology, and in particular to a high-pressure magnetically sealed rotary feeder. Background Technology

[0002] Quantitative feeding devices are essential components in power machinery. In petrochemical, coal chemical, silicon chemical, and chlorination plants, commonly used media include high-pressure hydrogen, chlorine, and hydrogen chloride. Most of these media are corrosive, flammable, explosive, and toxic. If a seal fails, leading to leakage, it can not only disrupt normal production but also potentially cause major accidents such as fires and explosions, seriously endangering personal safety. Therefore, it is necessary to optimize and improve the drive and sealing structures and forms of conventional rotary feeders.

[0003] In current industrial production processes in sectors such as steel, power, non-ferrous metals, coal chemicals, and solid waste, there are processes involving the quantitative pneumatic conveying, feeding, pneumatic blowing, and batching of large quantities of bulk granular or powdery solid materials into various high-temperature and high-pressure furnaces and reactors. Current quantitative feeders are mostly used for applications with lower temperatures, lower operating pressures, and for conventional, non-hazardous, or low-hazard media.

[0004] However, for high-temperature, high-pressure environments and highly corrosive, highly toxic, and highly explosive media, the traditional rotary feeder structure is still used, which makes it impossible for the equipment body to achieve zero external leakage, thus leading to major leakage accidents. At the same time, the limitations of the existing sealing structure design cannot meet higher pressure levels or cope with more complex environmental and media requirements.

[0005] Therefore, the existing technology has problems and needs further improvement and development. Summary of the Invention

[0006] (I) Purpose of the invention: In order to solve the problems existing in the prior art, the purpose of this utility model is to provide a high-pressure magnetic seal rotary feeder to meet the requirements of high temperature, low working pressure environment and highly corrosive, highly toxic and highly explosive media.

[0007] (II) Technical Solution: In order to solve the above technical problems, this technical solution provides a high-pressure resistant magnetic sealing rotary feeder, including a feeding assembly, a sealing assembly, a magnetic assembly, a drive assembly, a rotating shaft and a rotating shaft cylinder. The rotating shaft passes vertically through the rotating shaft cylinder. The upper end of the rotating shaft is drivenly connected to the feeding assembly, and the lower end of the rotating shaft is drivenly connected to the magnetic assembly. A sealing assembly is provided between the feeding assembly and the rotating shaft, and between the rotating shaft cylinder and the rotating shaft for tight sealing. The drive assembly is drivenly connected to the magnetic assembly.

[0008] Furthermore, the sealing assembly includes a polytetrafluoroethylene gasket, a planar rotating Glyd ring, a first plug seal, a second plug seal, a third plug seal, a rotating Glyd ring, a first collar, a second collar, and a third collar;

[0009] A polytetrafluoroethylene (PTFE) gasket is provided extending into the rotor from the contact surface between the base plate and the rotor. The PTFE gasket is annular, with its lower end in contact with the base plate and its upper end connected to the lower end of a compression spring. The upper end of the compression spring is fixedly connected to the rotor.

[0010] Furthermore, the compression springs are evenly distributed in a ring at equal intervals inside the rotor, and the number of compression springs is N, where N≥4.

[0011] Furthermore, a planar rotating glyph is provided extending into the first collar on the contact surface between the first collar and the rotor, and the planar rotating glyph is annular.

[0012] Furthermore, an annular first plug seal with an upward opening is provided in the lower gas chamber of the first ring;

[0013] A first gas channel is opened on one side of the base plate, penetrating the inner and outer diameters of the base plate. The opening position of the first gas channel is opposite to the direction of the discharge pipe. One end of the first gas channel is connected to the middle gas chamber of the first collar, and the other end is connected to the first gas source. The first gas source provides gas to the first gas channel, and the pressure of the gas provided by the first gas source is greater than the pressure in the feed tank.

[0014] Furthermore, an annular rotating glyph is provided at the upper end of the concave step cavity of the second ring; a second fixing ring and an annular second plug seal with an upward opening are provided at the lower end of the concave step cavity of the second ring.

[0015] Furthermore, a Z-shaped second gas channel is provided. The upper horizontal section of the second gas channel is located on one side inside the second collar, and the opening position of the second gas channel is opposite to the direction of the discharge pipe. The vertical section of the second gas channel passes through the stepped structure in which the second collar and the rotating shaft cylinder are fitted together, and extends vertically towards the lower end of the rotating shaft cylinder. The lower horizontal section of the second gas channel is located below the support base and exits from the outer diameter of the rotating shaft cylinder. The end of the upper horizontal section of the second gas channel communicates with the second gas chamber, and the end of the lower horizontal section of the second gas channel is connected to the second gas source.

[0016] Furthermore, a lubricating oil nozzle penetrating the inner and outer diameters of the rotating shaft cylinder is provided on the second step of the rotating shaft cylinder. The lubricating oil nozzle is used to provide lubricating oil to the first inner cavity and the second inner cavity. The pressure of the lubricating oil provided by the lubricating oil nozzle is less than the pressure of the gas provided by the second gas source. The lubricating oil nozzle is located on one side of the rotating shaft cylinder, and the opening position of the lubricating oil nozzle is in the same direction as the direction of the discharge pipe.

[0017] A third fixing ring and an annular third plug seal with an upward opening are provided at the lower end of the second inner cavity of the rotating shaft cylinder.

[0018] Furthermore, the lower end of the rotating shaft cylinder is fixedly connected to the magnetic component by fasteners, the lower end of the rotating shaft extends into the interior of the magnetic component and is connected to the magnetic component in a transmission manner, and the central axis of the rotating shaft coincides with the central axis of the magnetic component.

[0019] Furthermore, the magnetic component includes a magnetic actuator housing, an outer magnet, and an inner magnet. The magnetic actuator housing is a hollow cylindrical shape and is fitted around the outer magnet, which is also a hollow cylindrical shape. The outer magnet is fitted around the inner magnet, which is also a hollow cylindrical shape. The inner magnet is fitted around the rotating shaft and is connected to the rotating shaft via a connecting key.

[0020] (III) Beneficial effects: By adding a magnetic component to the drive part, this utility model solves the problems of sealing failure, leakage and pollution that are prone to occur in mechanical seals and packing seals in the past. By setting up multi-stage sealing components, the sealing performance and pressure resistance of the equipment are improved, ensuring that dangerous media do not leak out. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partially enlarged structural schematic diagram of the feeding assembly of this utility model;

[0023] Figure 3 This is a partially enlarged structural schematic diagram of the sealing component of this utility model;

[0024] Figure 4 This is a partially enlarged structural schematic diagram of the magnetic component of this utility model.

[0025] Reference numerals: 1-Feeding assembly; 2-Sealing assembly; 3-Magnetic assembly; 4-Drive assembly; 5-Rotating shaft; 6-Rotating shaft cylinder; 41-Motor; 42-Motor reducer; 43-Drive transmission element; 11-Top plate; 12-Bottom plate; 13-Agitator; 14-Support base; 15-Rotating impeller; 16-Air inlet pipe; 17-Discharge pipe; 151-Rotor; 152-Blade end; 201-PTFE gasket; 202-Plane rotating Glyd ring; 203-First ring; 204-Second ring; 205-Third ring; 206-First plug seal; 207-Rotating Glyd ring; 208-Second retaining ring; 209-Second plug seal; 210-Third retaining ring; 211-Third plug seal; 212-First pressure-bearing seal; 213-Second pressure-bearing seal; 214-Fourth retaining ring; 31-Magnetic actuator housing; 32-Outer magnet; 33-Inner magnet; 34-Inner magnet baffle; 35-Outer magnet baffle; 4301-Reducer output shaft; 4302-Bearing housing; 4303-Transmission seat. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to preferred embodiments. More details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can obviously be implemented in many other ways different from those described herein. Those skilled in the art can make similar extensions and derivations based on actual application situations without departing from the spirit of the present invention. Therefore, the scope of protection of the present invention should not be limited by the content of this specific embodiment.

[0027] The accompanying drawings are schematic diagrams of embodiments of the present invention. It should be noted that these drawings are for illustrative purposes only and are not drawn to scale, and should not be construed as limiting the scope of protection of the present invention.

[0028] like Figure 1 As shown, a high-pressure resistant magnetically sealed rotary feeder includes a feeding assembly 1, a sealing assembly 2, a magnetic assembly 3, a drive assembly 4, a rotating shaft 5, and a rotating shaft cylinder 6. The rotating shaft 5 passes vertically through the rotating shaft cylinder 6. The upper end of the rotating shaft 5 is drivenly connected to the feeding assembly 1, and the lower end of the rotating shaft 5 is drivenly connected to the magnetic assembly 3. The sealing assembly 2 is provided between the feeding assembly 1 and the rotating shaft 5, and between the rotating shaft cylinder 6 and the rotating shaft 5, to provide a tight seal. The drive assembly 4 is drivenly connected to the magnetic assembly 3.

[0029] like Figure 2As shown, the feeding assembly 1 includes a top plate 11, a bottom plate 12, a stirrer 13, a support base 14, and a rotating impeller 15. The upper end of the feeding assembly 1 is fixedly connected to the feeding tank. The bottom plate 12 has a feeding cavity inside and is open at the top. One side of the bottom plate 12 is inclined downward and connected to a discharge pipe 17. The inner cavity of the discharge pipe 17 communicates with the feeding cavity of the bottom plate 12. The rotating impeller 15 is arranged in the feeding cavity of the bottom plate 12. The rotating impeller 15 includes a rotor 151 and blade ends 152. The rotating shaft 5 passes vertically through the bottom plate 12 and the rotating impeller 15. The rotating shaft 5 is connected to the rotor 151 through a connecting key. The blade ends 152 include several vertically penetrating impeller cavities of equal volume. The impeller cavities are used to ensure that the discharge pipe 17 is always stably connected to the feeding cavity of the bottom plate 12, so as to achieve a stable feeding rate. The top plate 11 covers the bottom plate 12, and the top plate 11 and the bottom plate 12 are fixedly connected by fasteners. A feed inlet is provided on one side of the upper surface of the top plate 11, and the position of the feed inlet is opposite to the direction of the discharge pipe 17. An air inlet pipe 16 is provided radially inward on the top plate 11, and the air inlet pipe 16 is vertically aligned with the discharge pipe 17, used to blow the material in the impeller cavity into the inner cavity of the discharge pipe 17, completing the material discharge process. The upper end of the rotating shaft 5 is fixedly connected to the agitator 13.

[0030] A support base 14 is provided below the base plate 12. The base plate 12 and the support base 14 are fixedly connected by fasteners. The support base 14 is used to support the base plate 12. The support base 14 is fitted onto the rotating shaft cylinder 6 through a stepped structure. The outer diameter of the support base 14 is larger than the outer diameter of the rotating shaft cylinder 6. A sealing ring is provided between the support base 14 and the base plate 12 for sealing.

[0031] like Figure 3 As shown, the sealing assembly 2 includes a polytetrafluoroethylene gasket 201, a planar rotating Glyd ring 202, a first plug seal 206, a second plug seal 209, a third plug seal 211, a rotating Glyd ring 207, a first pressure-bearing seal 212, a second pressure-bearing seal 213, a first collar 203, a second collar 204, and a third collar 205.

[0032] A polytetrafluoroethylene (PTFE) gasket 201 extends into the rotor 151 from the contact surface between the base plate 12 and the rotor 151. The PTFE gasket 201 is annular, with its lower end contacting the base plate 12 and its upper end connected to the lower end of a compression spring. The upper end of the compression spring is fixedly connected to the rotor 151. The compression springs are evenly distributed in annular rings within the rotor 151, with a number of N, where N≥4. When compressed, the compression springs press the PTFE gasket 201 downwards through their spring force, sealing the area between the base plate 12 and the rotor 151. This overcomes the problem of weakened sealing performance caused by continuous rotational wear of the PTFE gasket 201, thus improving sealing performance and service life.

[0033] A first collar 203, a second collar 204, and a third collar 205 are provided between the base plate 12 and the rotating shaft 5. The upper end of the first collar 203 contacts the rotor 151, and the lower end of the first collar 203 is fixedly connected to the upper end of the second collar 204 by fasteners. The base plate 12 is fitted around the first collar 203, and the outer diameter of the first collar 203 is equal to the inner diameter of the base plate 12. A sealing ring is provided between the base plate 12 and the first collar 203 for sealing. The outer diameter of the first collar 203 is smaller than the outer diameter of the rotor 151. The lower outer wall of the second collar 204 is fitted onto the rotating shaft cylinder 6 through a stepped structure, and the outer diameter of the second collar 204 is equal to the outer diameter of the rotating shaft cylinder 6. The base plate 12 is fitted around the second collar 204, and the outer diameter of the second collar 204 is equal to the outer diameter of the first collar 203. The second collar 204 is fitted around the third collar 205, which is heat-fitted onto the rotating shaft 5. A sealing ring is provided between the base plate 12 and the second collar 204 for sealing, and a sealing ring is provided between the rotating shaft cylinder 6 and the second collar 204 for sealing.

[0034] A planar rotating glyph 202 is provided extending into the first collar 203 on the contact surface between the first collar 203 and the rotor 151. The planar rotating glyph 202 is annular and is used to seal between the first collar 203 and the rotor 151.

[0035] The inner wall of the first ring 203 has a three-stage stepped structure, consisting of an upper step, a middle step, and a lower step from top to bottom. The inner diameter of the upper step is smaller than that of the middle step, and the inner diameter of the middle step is smaller than that of the lower step. A middle gas chamber is formed between the middle step and the rotating shaft 5. The upper end of the third ring 205 contacts the lower end of the middle gas chamber, and a lower gas chamber is formed between the lower step and the third ring 205. The middle gas chamber and the lower gas chamber are connected. An annular first gas seal 206 with an upward opening is provided in the lower gas chamber.

[0036] A first gas channel is formed on one side of the base plate 12, penetrating both its inner and outer diameters. The first gas channel is positioned opposite to the direction of the discharge pipe 17. One end of the first gas channel is connected to the middle gas chamber, and the other end is connected to a first gas source. The first gas source supplies gas into the first gas channel at a pressure greater than the pressure in the feed tank. The first gas channel delivers gas to the middle gas chamber and the lower gas chamber. The gas acts on the first plug seal 206 to form a plug seal. Simultaneously, the high-pressure gas in the middle gas chamber prevents material from seeping out from the gap between the rotating shaft 5 and the upper step.

[0037] The inner wall of the second ring 204 has a three-stage stepped structure, consisting of a concave step, a convex step, and a platform step from top to bottom. The inner diameter of the concave step is larger than that of the convex step, and the inner diameter of the convex step is smaller than that of the platform step. A concave step cavity is formed between the concave step and the third ring 205. An annular rotating glyph 207 is disposed at the upper end of the concave step cavity. The outer diameter of the rotating glyph 207 is in close contact with the inner diameter of the concave step, and the inner diameter of the rotating glyph 207 is in close contact with the outer diameter of the third ring 205. The upper end of the rotating glyph 207 is in close contact with the lower step and the lower end of the first sealing cap 206. A second fixing ring 208 and an upward-opening annular second plug seal 209 are provided at the lower end of the concave step cavity. The outer diameter of the second fixing ring 208 is in close contact with the inner diameter of the concave step, the inner diameter of the second fixing ring 208 is in close contact with the outer diameter of the second plug seal 209, and the inner diameter of the second plug seal 209 is in close contact with the outer diameter of the third sleeve ring 205. An annular second gas chamber is provided between the second fixing ring 208 and the rotating Gladius ring 207.

[0038] A Z-shaped second gas channel is provided. The upper horizontal section of the second gas channel is located on one side inside the second collar 204, and the opening position of the second gas channel is opposite to the direction of the discharge pipe 17. The vertical section of the second gas channel passes through the stepped structure of the second collar 204 and the rotating shaft cylinder 6, and extends vertically towards the lower end of the rotating shaft cylinder 6. The lower horizontal section of the second gas channel is located below the support base 14 and exits from the outer diameter of the rotating shaft cylinder 6. The end of the upper horizontal section of the second gas channel communicates with the second gas chamber, and the end of the lower horizontal section of the second gas channel is connected to the second gas source. The second gas source provides gas to the second gas channel, and the pressure of the gas provided by the second gas source is less than the pressure of the gas provided by the first gas source. The second gas channel delivers the gas to the second gas chamber, and the gas acts on the second plug seal 209 to form a plug seal.

[0039] The inner wall of the vertical portion of the rotating shaft cylinder 6 has a five-step structure, which are arranged from top to bottom as the first step, second step, third step, fourth step, and fifth step. The inner diameter of the first step is larger than that of the second step, the inner diameter of the second step is larger than that of the third step, the inner diameter of the third step is smaller than that of the fourth step, and the inner diameter of the fourth step is smaller than that of the fifth step. A first inner cavity is formed between the first step and the rotating shaft 5, a second inner cavity is formed between the second step and the rotating shaft 5, a third inner cavity is formed between the third step and the rotating shaft 5, a fourth inner cavity is formed between the fourth step and the rotating shaft 5, and a fifth inner cavity is formed between the fifth step and the rotating shaft 5.

[0040] An upper bearing is provided at the lower end of the first inner cavity, and the upper bearing is sleeved on the rotating shaft 5. The outer diameter of the upper bearing is equal to the inner diameter of the first step. A third fixing ring 210 and an annular third plug seal 211 with an upward opening are provided at the lower end of the second inner cavity. The third fixing ring 210 has a stepped structure. The step with the larger inner diameter of the third fixing ring 210 is located at the upper end of the third fixing ring 210. The third plug seal 211 is provided on the horizontal transition section of the step of the third fixing ring 210. The inner diameter of the third plug seal 211 is close to the rotating shaft 5, and the outer diameter of the third plug seal 211 is close to the inner diameter of the step with the larger inner diameter of the third fixing ring 210. The outer diameter of the third fixing ring 210 is close to the inner diameter of the second step.

[0041] A lubricating oil nozzle, penetrating the inner and outer diameters of the rotating shaft cylinder 6, is provided on the second step. This lubricating oil nozzle supplies lubricating oil to the first and second inner cavities. The pressure of the lubricating oil supplied by the nozzle is lower than the pressure of the gas supplied by the second gas source. The lubricating oil nozzle is located on one side of the rotating shaft cylinder 6, and its position is in the same direction as the discharge pipe 17. Preferably, the lubricating oil supplied by the nozzle is perfluoroether grease, used to overcome the corrosive damage to the upper bearing caused by strong acids and alkalis.

[0042] An annular first pressure-bearing seal 212 is provided in the fourth inner cavity. A lower bearing is provided at the upper end of the fifth inner cavity. A fourth fixing ring 214 and an annular second pressure-bearing seal 213 are provided at the lower end of the fifth inner cavity. The first pressure-bearing seal 212 and the second pressure-bearing seal 213 form an upper seal and a lower seal for the lower bearing. The lower bearing is sleeved on the rotating shaft 5, and the outer diameter of the lower bearing is equal to the inner diameter of the fifth step. The upper end of the fourth fixing ring 214 is in close contact with the lower bearing, the inner diameter of the fourth fixing ring 214 is in close contact with the rotating shaft 5, the outer diameter of the fourth fixing ring 214 is in close contact with the inner diameter of the second pressure-bearing seal 213, and the outer diameter of the second pressure-bearing seal 213 is in close contact with the inner diameter of the fifth step.

[0043] The lower end of the rotating shaft cylinder 6 is fixedly connected to the magnetic component 3 by fasteners. The lower end of the rotating shaft 5 extends into the interior of the magnetic component 3 and is drively connected to the magnetic component 3. The central axis of the rotating shaft 5 coincides with the central axis of the magnetic component 3. Figure 4 As shown, the magnetic component 3 includes a magnetic actuator housing 31, an outer magnet 32, and an inner magnet 33. The upper end of the magnetic actuator housing 31 is fixedly connected to the lower end of the rotating shaft cylinder 6 via fasteners. The magnetic actuator housing 31 is hollow cylindrical. The magnetic actuator housing 31 is fitted around the outer magnet 32, which is also hollow cylindrical. The outer magnet 32 ​​is fitted around the inner magnet 33, which is also hollow cylindrical. The inner magnet 33 is fitted around the rotating shaft 5 and is connected to the rotating shaft 5 via a connecting key. An inner magnet baffle 34 is provided at the lower end of the rotating shaft 5. The inner magnet baffle 34 is disc-shaped and is fixedly connected to the rotating shaft 5 in the vertical direction via fasteners.

[0044] An outer magnet baffle 35 is provided below the inner magnet 33. The outer magnet baffle 35 is a hollow cylindrical shape. The upper end of the outer magnet baffle 35 is fixedly connected to the outer magnet 32, and the lower end of the outer magnet baffle 35 is fixedly connected to the drive assembly 4.

[0045] The magnetic actuator housing 31 isolates the outer magnet 32 ​​and inner magnet 33 from the outside world, preventing external interference with the magnetic fields generated by the outer magnet 32 ​​and inner magnet 33 and providing protection. The outer magnet 32 ​​and inner magnet 33 form an axial magnetic coupler through the principle of magnetic coupling, and the drive assembly 4 drives the outer magnet 32 ​​to rotate, thereby driving the inner magnet 33 to rotate, and in turn driving the rotating shaft 5 to rotate.

[0046] Preferably, the magnetic actuator housing 31 is a metal housing.

[0047] The drive assembly 4 includes a motor 41, a motor reducer 42, and a drive transmission element 43. The drive transmission element 43 includes a reducer output shaft 4301, a bearing housing 4302, and a transmission base 4303. The transmission base 4303 has a hollow structure, comprising a disc section and a cylindrical section. The disc section of the transmission base 4303 is located at its upper end, and the upper end of the disc section is fixedly connected to the outer magnet baffle 35. The cylindrical section of the transmission base 4303 is connected to the reducer output shaft 4301 via a connecting key, and the central axes of the disc and cylindrical sections of the transmission base 4303 coincide. The bearing housing 4302 is fitted around the cylindrical section of the transmission base 4303, providing support for the transmission base 4303 through a bearing structure. The lower end of the bearing housing 4302 is fixedly connected to the motor reducer 42 via fasteners. One end of the reducer output shaft 4301 is connected to the motor reducer 42 for transmission.

[0048] The reducer output shaft 4301, bearing seat 4302 and transmission seat 4303 are all disposed in the hollow inner cavity of the magnetic drive housing 31, and the magnetic drive housing 31 and the bearing seat 4302 are fixedly connected by fasteners.

[0049] The magnetic component forms an axial magnetic coupler through the principle of magnetic coupling. Torque is transmitted through magnetic coupling, eliminating the physical connection at the shaft penetration point, forming a non-contact transmission, ensuring the sealing of the device, and greatly reducing the risk of leakage in high temperature and high pressure environments.

[0050] More specifically, the motor drives the output shaft of the reducer to rotate, which in turn drives the transmission base to rotate, and then drives the outer magnet baffle to rotate. The magnetic coupling between the outer and inner magnets drives the rotating shaft to rotate, which in turn drives the rotating impeller to feed material. The air inlet pipe blows the material from the rotating impeller into the discharge pipe, completing the material discharge. Simultaneously, the rotating shaft drives the agitator to stir the material in the feeding tank, improving feeding efficiency. The sealing assembly seals the device during the rotation of the rotating shaft and the rotating impeller.

[0051] The above description illustrates preferred embodiments of the present invention and helps those skilled in the art to more fully understand the technical solution of the present invention. However, these embodiments are merely illustrative and should not be construed as limiting the specific implementation of the present invention to these embodiments. For those skilled in the art, several simple deductions and modifications can be made without departing from the concept of the present invention, and all such modifications should be considered to fall within the protection scope of the present invention.

Claims

1. A high-pressure resistant magnetically sealed rotary feeder, comprising a feeding assembly, a sealing assembly, a magnetic assembly, a drive assembly, a rotating shaft, and a rotating shaft cylinder, characterized in that, The rotating shaft passes vertically through the rotating shaft cylinder. The upper end of the rotating shaft is connected to the feeding assembly, and the lower end of the rotating shaft is connected to the magnetic assembly. A sealing assembly is provided between the feeding assembly and the rotating shaft, and between the rotating shaft cylinder and the rotating shaft, to provide a tight seal. The driving assembly is connected to the magnetic assembly.

2. The high-pressure resistant magnetic seal rotary feeder according to claim 1, characterized in that, The sealing assembly includes a polytetrafluoroethylene gasket, a planar rotating Glyd ring, a first plug seal, a second plug seal, a third plug seal, a rotating Glyd ring, a first collar, a second collar, and a third collar; A polytetrafluoroethylene (PTFE) gasket is provided extending into the rotor from the contact surface between the base plate and the rotor. The PTFE gasket is annular, with its lower end in contact with the base plate and its upper end connected to the lower end of a compression spring. The upper end of the compression spring is fixedly connected to the rotor.

3. The high-pressure resistant magnetic seal rotary feeder according to claim 2, characterized in that, The compression springs are evenly distributed in a ring at equal intervals inside the rotor, and the number of compression springs is N, where N≥4.

4. The high-pressure resistant magnetic seal rotary feeder according to claim 2, characterized in that, A planar rotating glyph is provided extending into the first collar from the contact surface between the first collar and the rotor. The planar rotating glyph is annular.

5. The high-pressure resistant magnetic seal rotary feeder according to claim 2, characterized in that, An annular first plug seal with an upward opening is provided in the lower gas chamber of the first ring; A first gas channel is opened on one side of the base plate, penetrating the inner and outer diameters of the base plate. The opening position of the first gas channel is opposite to the direction of the discharge pipe. One end of the first gas channel is connected to the middle gas chamber of the first collar, and the other end is connected to the first gas source. The first gas source provides gas to the first gas channel, and the pressure of the gas provided by the first gas source is greater than the pressure in the feed tank.

6. The high-pressure resistant magnetic seal rotary feeder according to claim 2, characterized in that, An annular rotating glyph is provided at the upper end of the concave step inner cavity of the second ring; a second fixing ring and an annular second plug seal with an upward opening are provided at the lower end of the concave step inner cavity of the second ring.

7. The high-pressure resistant magnetic seal rotary feeder according to claim 2, characterized in that, A Z-shaped second gas channel is provided. The upper horizontal section of the second gas channel is located on one side inside the second collar, and the opening position of the second gas channel is opposite to the direction of the discharge pipe. The vertical section of the second gas channel passes through the stepped structure in which the second collar and the rotating shaft cylinder are fitted together, and extends vertically towards the lower end of the rotating shaft cylinder. The lower horizontal section of the second gas channel is located below the support base and exits from the outer diameter of the rotating shaft cylinder. The end of the upper horizontal section of the second gas channel communicates with the second gas chamber, and the end of the lower horizontal section of the second gas channel is connected to the second gas source.

8. The high-pressure resistant magnetic seal rotary feeder according to claim 1, characterized in that, A lubricating oil nozzle is provided on the second step of the rotating shaft cylinder, penetrating the inner and outer diameters of the rotating shaft cylinder. The lubricating oil nozzle is used to provide lubricating oil to the first inner cavity and the second inner cavity. The pressure of the lubricating oil provided by the lubricating oil nozzle is less than the pressure of the gas provided by the second gas source. The lubricating oil nozzle is located on one side of the rotating shaft cylinder, and the opening position of the lubricating oil nozzle is in the same direction as the direction of the discharge pipe. A third fixing ring and an annular third plug seal with an upward opening are provided at the lower end of the second inner cavity of the rotating shaft cylinder.

9. The high-pressure resistant magnetic seal rotary feeder according to claim 1, characterized in that, The lower end of the rotating shaft cylinder is fixedly connected to the magnetic component by fasteners. The lower end of the rotating shaft extends into the interior of the magnetic component and is connected to the magnetic component in a transmission manner. The central axis of the rotating shaft coincides with the central axis of the magnetic component.

10. The high-pressure resistant magnetic seal rotary feeder according to claim 1, characterized in that, The magnetic component includes a magnetic actuator housing, an outer magnet, and an inner magnet. The magnetic actuator housing is a hollow cylindrical shape and is fitted around the outer magnet, which is also a hollow cylindrical shape. The outer magnet is fitted around the inner magnet, which is a hollow cylindrical shape; the inner magnet is fitted around the shaft and is connected to the shaft via a connecting key.

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