Horizontal eddy current three-separation powder separator

Abstract

The present invention relates to the technical field of powder selection machines, and specifically to a horizontal vortex three-separation powder selection machine, including a powder selection chamber, an air guide structure is arranged inside the chamber, and a rotor structure is placed in the middle of the air guide structure; a feeding structure and a fine particle discharge pipe are arranged at the upper part of the powder selection chamber, and a coarse particle discharge pipe and a medium particle discharge pipe are arranged at the lower part, and the fine particle discharge pipe is connected to a negative pressure fan to form a negative pressure in the powder selection chamber; a rotor structure, including an inner rotor body and an outer rotor body that rotate synchronously, and rotor blades are arranged inside the rotor body, and the rotor blades are used to scatter the coarse and medium particle materials entering the inner rotor body to the outside of the inner rotor body; a driving structure is connected and matched with the rotor body and drives the rotor structure to rotate. The present invention can perform precise sorting of coarse, medium and fine materials, and improves the sorting effect; it can break up the vortex, reduce the wear on the rotor structure and the airflow duct, and thus improve the effective service life of the powder selection machine while ensuring the sorting effect.

Description

Technical Field

[0001] The invention relates to the technical field of powder classifiers, and in particular to a horizontal eddy current three-separation powder classifier. Background Art

[0002] Powder classifiers are widely used for powder sorting in the fields of building materials, food, medical treatment, metallurgy, chemical industry, etc. The cage rotor composed of multiple blades is its core component. The fan forms a negative pressure in the powder classifier chamber. After the air enters the powder classifier from the air inlet, it forms a rotating airflow driven by the high-speed cage rotor. The fine particles entering the powder classifier chamber from the feed inlet are subjected to airflow drag greater than the centrifugal force, and thus pass through the rotor blades to move toward the center of the rotor. The suction force of the fan is used to drop the fine particles into the fine powder collector, while the coarse particles are subjected to a larger centrifugal force and move toward the outer side wall, and fall into the coarse powder collector along the side wall under the action of gravity, thus realizing the separation of coarse and fine particles.

[0003] The existing powder separator usually performs two-separation powder separation during the separation process, that is, the coarse particles and fine particles in the material are separated from each other, which causes part of the medium particles to enter the coarse particles, and part of the medium particles to enter the fine particles. The rotor structure determines the degree of separation of the materials, which has a significant impact on the separation of coarse, medium and fine materials.

[0004] It can be seen that there is still room for improvement in the existing powder classifier structure. The rotor structure needs to be optimized and improved to restrict the internal airflow, reduce the loss of the rotor structure and airflow pipeline, and extend the service life of the powder classifier. Therefore, it is necessary to propose a more reasonable technical solution to solve the technical problems existing in the existing technology. Summary of the invention

[0005] In order to overcome at least one of the defects mentioned above, the present invention proposes a horizontal vortex three-separation powder classifier, in which an inner rotor structure and an outer rotor structure are arranged to correspond to the three-separation discharge pipes respectively, and coarse, medium and fine powders are separated by airflow, thereby improving the fineness of material separation and thus improving the efficiency of material separation.

[0006] In order to achieve the above purpose, the powder classifier disclosed in the present invention can adopt the following technical solutions:

[0007] Horizontal vortex three-separation powder classifier, including:

[0008] The powder selection chamber is provided with an air guide structure for forming a vortex, and a rotation space for placing a rotor structure is formed in the middle of the air guide structure; a feeding structure for material entry and a fine particle discharge pipe are provided at the upper part of the powder selection chamber, and a coarse particle discharge pipe and a medium particle discharge pipe are provided at the lower part, and the fine particle discharge pipe is connected to a negative pressure fan to form a negative pressure in the powder selection chamber;

[0009] The rotor structure comprises a cage-shaped inner rotor body and an outer rotor body arranged in the rotating space, an outer powder selection gap is formed between the outer rotor body and the air guide structure, and an inner powder selection gap is formed between the outer rotor body and the inner rotor body; rotor blades are evenly spaced along the circumference and arranged inside the inner rotor body, and the rotor blades are used to scatter the coarse particles and medium particles entering the inner rotor body to the outside of the rotor body; the fine particle discharge pipe is located above the inner rotor body and is used to discharge the fine particles in the inner rotor body, the coarse particle discharge pipe is located outside the outer rotor body and is used to receive and discharge the coarse particles, and the medium particle discharge pipe is located below the outer rotor body and is used to discharge the medium particles;

[0010] The driving structure includes a driving motor and a driving shaft. The driving shaft is driven to rotate by the driving motor. The driving shaft is connected and matched with the rotor structure to drive the inner rotor body and the outer rotor body to rotate synchronously.

[0011] The powder selection machine disclosed above introduces the coarse, medium and fine mixed materials into the powder selection chamber through the feeding structure. The fine particles are first sucked into the inner rotor body in the negative pressure powder selection chamber. The fine particles are simultaneously subjected to the force of the airflow and a certain centrifugal force, but the airflow force is greater than the centrifugal force, resulting in the fine particles entering the fine particle discharge pipe with the airflow to become finished products; the coarse particles and medium particles that partially enter the inner rotor body are subjected to a centrifugal force greater than the airflow force, and are thrown out from the high-speed rotating inner rotor body and fall into the medium particle discharge pipe; and most of the coarse particles and medium particles that enter the inner powder selection chamber directly fall into the medium particle discharge pipe when entering; similarly, most of the coarse particles fall directly into the coarse particle discharge pipe when entering the outer powder selection chamber. In this way, the separation and processing of coarse, medium and fine materials is achieved.

[0012] Furthermore, in order to improve the protection of the air duct structure and reduce the wear of the fine particle discharge pipe by the materials carried in the airflow, the airflow is constrained to reduce the loss of the fine particle discharge pipe. Here, an optimization is performed and one of the feasible options is given: a vortex breaking structure is provided in the rotor body, and the vortex breaking structure is used to transform the airflow in the rotor body from a vortex airflow to a vertical airflow and enter the fine particle discharge pipe. When such a scheme is adopted, the airflow in the rotor body is originally a vortex, which flows horizontally in the rotor body and maintains the form of a vortex to enter the fine particle discharge pipe, which will cause certain wear; after the vortex is broken up, the airflow in the rotor body is a fluid that enters the fine particle discharge pipe vertically, and the flow rate is reduced to a certain extent, thereby reducing the damage to the fine particle discharge pipe.

[0013] Furthermore, in the present invention, the force of negative pressure airflow is used to separate coarse, medium and fine materials, and the fine particle materials are separated therefrom and transported as finished products. The specific separation structure is not limited to a single one. Here, it is optimized and one of the feasible options is cited: a powder selection gap is left between the rotor structure and the rotating space, and a synchronously rotating scattering disc is arranged on the upper part of the rotor structure. The material entering from the feeding structure falls on the scattering disc and is centrifugally thrown around and then separated from the scattering disc. When such a scheme is adopted, the material thrown out from the scattering disc will fall, and in the process of falling, it will be affected by centrifugal force and airflow force. The coarse, medium and fine particle materials are affected by different forces, among which the fine particle materials are more obviously affected by the airflow force, and the effect of the centrifugal force on the medium particle materials and the coarse particle materials increases step by step, thereby achieving rapid separation.

[0014] Furthermore, in the process of conveying fine particle materials, the fine particle materials flow with the airflow and pass through the rotor body before reaching the fine particle discharge pipe. In order to prevent the materials from directly entering the fine particle discharge pipe without being sorted and affecting the sorting effect, the matching structure of the inner rotor body and the fine particle discharge pipe is optimized to improve the sealing performance: the upper part of the inner rotor body is matched with the fine particle discharge pipe clearance and a sealing groove structure and a sealing ring structure are provided at the matching position. When such a scheme is adopted, the inner rotor body and the fine particle discharge pipe remain connected, and at the same time, it can prevent the materials from entering between the inner rotor body and the fine particle discharge pipe without being screened, or directly entering the fine particle discharge pipe, thereby maintaining the sorting effect and avoiding blockage.

[0015] Furthermore, in order to better achieve the separation of coarse and fine materials, the falling process of coarse, medium and fine materials can be restricted. Here, an optimization is made and one of the feasible options is given: a material blocking structure is provided in the powder selection chamber, and the material blocking structure is used to block the material thrown out from the scattering plate and make the material fall into the outer powder selection gap. When such a scheme is adopted, the material blocking structure can limit the distance that the material is thrown out, so that the material can fall smoothly into the outer powder selection gap; due to the existence of the material blocking structure, the material thrown out is broken up after impact, so that the material is initially dispersed, which is conducive to the subsequent separation of coarse, medium and fine materials.

[0016] Furthermore, when setting the powder selection chamber structure, the present invention takes into account that the longer the distance the material falls, the better the separation effect, so it is optimized and one of the feasible options is given: the powder selection chamber is formed in the powder selection shell, and the upper part of the powder selection shell is connected with a transfer structure for accommodating the material spreading plate and the material blocking structure, and a transfer space is formed in the transfer structure, and the material spreading plate and the material blocking structure are both located in the material blocking space. When such a solution is adopted, no eddy current is formed in the transfer structure, and the material is centrifugally processed only by the rotation of the material spreading plate, so that the material entering from the feeding structure can fall smoothly into the material spreading plate.

[0017] Furthermore, the material blocking structure used in the present invention is not limited to a single one. For example, in some schemes, an inclined surface can be used for material blocking, and in some schemes, a conical protrusion or a spherical protrusion can be used for material blocking. Here, an optimization is made and one of the feasible options is given: the material blocking structure includes a material blocking liner, which surrounds the outer side of the material spreading plate and is connected end to end to form a cylindrical shape. When such a scheme is adopted, the cylindrical material blocking liner collides with the material almost vertically, which can achieve a better scattering effect and also facilitate the falling of the material to reduce the residue of the material on the material blocking liner.

[0018] Furthermore, the rotor structure is driven from the top downwards, and the specific scheme that can be adopted is not limited to the only one. Here, an optimization is made and one feasible option is given: a top mounting shell is arranged above the transfer structure, and the driving structure is arranged on the top mounting shell. When such a scheme is adopted, the driving motor can be fixedly mounted on the top mounting shell, and the driving shaft extends downward into the powder selection chamber to drive the rotor structure to rotate.

[0019] Furthermore, the present invention optimizes the matching structure of the coarse particle discharge pipe and the outer layer powder selection gap and provides one feasible option: the coarse particle discharge pipe includes a conical transition body, the transition body includes a middle cone connected to the outer layer powder selection gap, the lower part of the middle cone is connected to the lower cone, and the middle cone and the lower cone are connected to form a collection channel. When such a solution is adopted, the connection between the middle cone and the lower cone is sealed to avoid leakage of materials.

[0020] Furthermore, the present invention makes the same arrangement for the medium particle discharge pipe, and one feasible option is given here: the medium particle discharge pipe comprises an inner cone, the inner cone comprises an inner cone upper part connected to the inner layer powder selection gap, the inner cone upper part is connected to the inner cone lower part and communicates with the inner cone lower part to form a collection channel. When such a scheme is adopted, the connection between the inner cone upper part and the inner cone lower part is sealed to avoid leakage of materials.

[0021] Compared with the prior art, some beneficial effects of the technical solution disclosed in the present invention include:

[0022] The rotor structure adopted in the present invention is divided into an outer rotor body and an inner rotor body, which can sort the material into coarse, medium and fine grades step by step, thereby improving the sorting effect of the material; at the same time, the rotor structure can break up the vortex, and the airflow entering the rotor structure is changed from vortex to vertical flow, thereby reducing the wear on the rotor structure and the airflow duct, thereby ensuring the sorting effect while increasing the effective service life of the powder classifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only represent some embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the front view structure of the powder classifier.

[0025] Figure 2 It is a side view structural diagram of the powder classifier.

[0026] Figure 3 It is a schematic diagram of the top view of the powder classifier.

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the powder classifier.

[0028] Figure 5 This is a schematic diagram of the structure of the powder selector rotor.

[0029] Figure 6 This is a schematic diagram of the rotor structure from another perspective.

[0030] In the above drawings, the meanings of the various reference numerals are as follows:

[0031] 1. Powder selection shell; 101. Powder selection chamber; 2. Transfer structure; 201. Transfer space; 3. Top mounting shell; 4. Feeding structure; 5. Outer powder selection gap; 5a. Inner powder selection gap; 6. Sprinkling plate; 7. Material blocking structure; 8. Inner rotor body; 8a. Outer rotor body; 9. Eddy current breaking up structure; 10. Air guide structure; 11. Driving motor; 12. Driving shaft; 13. Coarse particle discharge pipe; 14. Fine particle discharge pipe; 15. Oil station system; 16. Sealing ring structure; 17. Sealing groove structure; 18. Medium particle discharge pipe. DETAILED DESCRIPTION

[0032] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0033] In view of the fact that the powder classifier in the prior art has unsatisfactory material sorting effect and large equipment loss, the following embodiments are optimized to solve the defects in the prior art.

[0034] Example

[0035] This embodiment provides a horizontal eddy current three-separation powder classifier, which aims to ensure the powder selection effect and extend the service life of the equipment.

[0036] like Figure 1 to Figure 4As shown, as the powder classifier provided in this embodiment, one of its structures includes:

[0037] The powder selection chamber 101 used for material separation is provided with an air guide structure 10 for forming a vortex inside, and a rotating space for placing a rotor structure is formed in the middle of the air guide structure 10; the upper part of the powder selection chamber 101 is provided with a feeding structure 4 for material entry and a fine particle discharge pipe 14, and the lower part is provided with a coarse particle discharge pipe 13 and a medium particle discharge pipe 18, and the fine particle discharge pipe 14 is connected to a negative pressure fan to form a negative pressure in the powder selection chamber 101.

[0038] Preferably, the powder selection chamber 101 in this embodiment can be constructed as a cylindrical cavity.

[0039] When setting the powder selection chamber 101 structure in this embodiment, considering that the longer the distance the material falls, the better the separation effect, optimization is performed and one of the feasible options is adopted: the powder selection chamber 101 is formed in the powder selection housing 1, and the upper part of the powder selection housing 1 is connected with a transfer structure 2 for accommodating the material spreading disc 6 and the material blocking structure 7, and a transfer space 201 is formed in the transfer structure 2, and the material spreading disc 6 and the material blocking structure 7 are both located in the material blocking space. When such a scheme is adopted, no eddy current is formed in the transfer structure 2, and the material is centrifugally processed only by the rotation of the material spreading disc 6, so that the material entering from the feeding structure 4 can fall smoothly into the material spreading disc 6.

[0040] Preferably, the rotor body 8 is driven downward from the top, and the specific scheme that can be adopted is not limited to the only one. This embodiment is optimized and adopts one of the feasible options: a top mounting shell 3 is arranged above the adapter structure 2, and the driving structure is arranged on the top mounting shell 3. When such a scheme is adopted, the driving motor 11 can be fixedly mounted on the top mounting shell 3, and the driving shaft 12 extends downward into the powder selection chamber 101, and drives the rotor body 8 to rotate.

[0041] Preferably, the feeding structure 4 in this embodiment adopts a feeding pipe, which is matched with the roller pressing system for providing materials, and the materials after roller pressing enter the powder selection chamber 101 from the feeding pipe. In this embodiment, the feeding pipe is extended to the middle of the powder selection chamber 101, and the materials are thrown around by centrifugal force, thereby achieving preliminary separation of the materials and making it easier to separate the materials during the falling process.

[0042] Preferably, Figure 5 As shown, the air guide structure 10 used in this embodiment includes a plurality of air guide plates, which are vertically arranged in the powder selection chamber 101 and evenly spaced along the circumference to form a rotating space; the plate surface of the air guide plate forms an angle with the radial direction of the circle where it is located, so that the airflow entering the rotating space forms a vortex.

[0043] In this embodiment, the powder classifier is further connected to an oil station system 15, and the oil station system 15 uses a thin oil station and provides oil lubrication for the powder classifier.

[0044] The second structure of the powder classifier provided in this embodiment includes:

[0045] like Figure 5 , Figure 6 As shown, the rotor structure includes a cage-shaped inner rotor body 8 and an outer rotor body 8a arranged in the rotating space, an outer powder selection gap 5 is formed between the outer rotor body 8a and the air guide structure 10, and an inner powder selection gap 5a is formed between the outer rotor body 8a and the inner rotor body 8; the inner rotor body 8 is provided with rotor blades evenly spaced along the circumference, and the rotor blades are used to scatter the coarse particles and medium particles entering the inner rotor body 8 to the outside of the inner rotor body 8; the fine particle discharge pipe 14 is located above the inner rotor body 8 and is used to discharge the fine particles in the inner rotor body 8, and the coarse particle discharge pipe 13 is located on the outside of the outer rotor body 8a and is used to receive and discharge the coarse particles; the medium particle discharge pipe 18 is located below the outer rotor body 8a and is used to discharge the medium particles.

[0046] In this embodiment, in order to improve the protection of the fine particle discharge pipe 14 and reduce the wear of the fine particle discharge pipe 14 by the materials carried in the airflow, the airflow is constrained to reduce the loss of the fine particle discharge pipe 14. Here, an optimization is performed and one of the feasible options is adopted: the inner rotor body 8 is provided with a vortex breaking structure 9, and the vortex breaking structure 9 is used to transform the airflow in the inner rotor body 8 from a vortex airflow to a vertical airflow and enter the fine particle discharge pipe 14. When such a scheme is adopted, the original airflow in the inner rotor body 8 is a vortex, which flows horizontally in the inner rotor body 8 and causes friction and certain wear on the drive shaft 12 and the fine particle discharge pipe 14; after the vortex is broken up, the airflow in the inner rotor body 8 is a fluid that enters the fine particle discharge pipe 14 vertically, and the flow rate is reduced to a certain extent, thereby reducing the damage to the fine particle discharge pipe 14.

[0047] Preferably, in this embodiment, the vortex breaking up structure 9 includes a plurality of breaking up blades that rotate synchronously with the rotor structure. The rotation of the breaking up blades breaks up the vortex airflow entering the inner rotor body 8, so that the airflow entering the fine particle discharge pipe 14 flows along the extension direction of the pipe.

[0048] In this embodiment, the force of negative pressure airflow is used to separate coarse, medium and fine materials, and the fine particle materials are separated and transported as finished products. The specific separation structure is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: a synchronously rotating scattering disc 6 is provided on the upper part of the rotor structure, and the material entering from the feeding structure 4 falls on the scattering disc 6 and is centrifugally thrown around and then separated from the scattering disc 6. When such a scheme is adopted, the material thrown out from the scattering disc 6 will fall, and in the process of falling, it will be affected by centrifugal force and airflow force. The coarse, medium and fine particle materials are affected by different forces, among which the fine particle materials are more obviously affected by the airflow force, and the medium particle materials and coarse particle materials are affected by the centrifugal force step by step, thereby achieving rapid separation of materials.

[0049] In order to better achieve the separation of coarse and fine materials, the falling process of coarse and fine materials can be restricted. This embodiment is optimized and adopts one of the feasible options: a material blocking structure 7 is provided in the powder selection chamber 101, and the material blocking structure 7 is used to block the material thrown out from the scattering plate 6 and make the material fall into the outer powder selection gap 5. When such a scheme is adopted, the material blocking structure 7 can limit the distance that the material is thrown out, so that the material can fall smoothly into the powder selection gap 5; due to the existence of the material blocking structure 7, the thrown and thrown material is broken up after impact, so that the material is initially dispersed, which is conducive to the subsequent separation of coarse and fine materials.

[0050] The material blocking structure 7 used in this embodiment is not limited to a single one. For example, in some schemes, an inclined surface can be used for material blocking, and in some schemes, a conical protrusion or a spherical protrusion can be used for material blocking. This embodiment optimizes and adopts one of the feasible options: the material blocking structure 7 includes a material blocking lining plate, which surrounds the outer side of the material spreading plate 6 and is connected end to end to form a cylindrical shape. When such a scheme is adopted, the cylindrical material blocking lining plate collides with the material almost vertically, which can achieve a better scattering effect and also facilitate the falling of the material to reduce the residue of the material on the material blocking lining plate.

[0051] In the process of conveying fine particle materials, the fine particle materials flow with the air flow and pass through the inner rotor body 8 to reach the fine particle discharge pipe 14. In order to reduce the adhesion and even blockage of the fine particle materials to the lower part of the inner rotor body 8 and maintain the smooth operation of the inner rotor body 8, this embodiment optimizes the matching structure of the inner rotor body 8 and the fine particle discharge pipe 14 to improve the sealing performance: the lower part of the inner rotor body 8 is matched with the fine particle discharge pipe 14 in a clearance, and a sealing groove structure 17 and a sealing ring structure 16 are provided at the matching position. When such a solution is adopted, the inner rotor body 8 and the fine particle discharge pipe 14 are kept in communication, and at the same time, the fine particle materials can be prevented from entering between the inner rotor body 8 and the fine particle discharge pipe 14, thereby avoiding blockage.

[0052] In this embodiment, a sealing groove is provided at the upper end of the inner rotor body 8, and the pipe opening of the fine particle discharge pipe 14 is inserted into the sealing groove to achieve a matching seal.

[0053] The powder selecting machine provided in this embodiment includes the following structure:

[0054] The driving structure includes a driving motor 11 and a driving shaft 12. The driving shaft 12 is driven to rotate by the driving motor 11. The driving shaft 12 is connected and cooperated with the rotor structure to drive the inner rotor body 8 and the outer rotor body 8a to rotate synchronously.

[0055] Preferably, the driving motor 11 is a variable frequency motor, which is connected to the driving shaft 12 via a coupling and drives the driving shaft 12 to rotate synchronously.

[0056] Preferably, a bearing seat is provided on the powder selection shell, and the drive shaft 12 is arranged and rotated in conjunction with the bearing and the bearing seat, and a dust-proof and oil-leakage-proof sealing structure is provided at the bearing seat, which is preferably a lip seal ring in this embodiment.

[0057] The powder selection machine disclosed in this embodiment introduces the coarse and fine mixed materials into the powder selection chamber 101 through the feeding structure 4. The fine particles are first sucked into the inner rotor body 8 in the negative pressure powder selection chamber 101. The fine particles are simultaneously subjected to the force of the airflow and a certain centrifugal force, but the airflow force is greater than the centrifugal force, resulting in the fine particles entering the fine particle discharge pipe 14 with the airflow to become finished products; the coarse particles and medium particles that partially enter the inner rotor body 8 are subjected to a centrifugal force greater than the airflow force, and are thrown out from the high-speed rotating inner rotor body 8 and fall into the medium particle discharge pipe 18; and most of the coarse particles and medium particles that enter the inner powder selection gap 5a directly fall into the medium particle discharge pipe 18; moreover, most of the coarse particles that enter the outer powder selection gap directly fall into the coarse particle discharge pipe. In this way, the separation and processing of materials is achieved. The materials discharged from the coarse particle discharge pipe 13 and the medium particle discharge pipe 18 after sorting are transported to the roller press and other equipment for further rolling and crushing until the subsequent sorting is completed.

[0058] The above are the implementation methods listed in this embodiment, but this embodiment is not limited to the above optional implementation methods. Those skilled in the art can arbitrarily combine the above methods to obtain other various implementation methods. Anyone can derive other various implementation methods under the inspiration of this embodiment. The above specific implementation methods should not be understood as limiting the protection scope of this embodiment. The protection scope of this embodiment should be based on the definition in the claims.

Claims

1. Horizontal eddy current three-separation powder separator, characterized in that: include: A powder selection chamber (101) is provided with an air guide structure (10) for forming a vortex, and a rotation space for placing a rotor structure is formed in the middle of the air guide structure (10); a feeding structure (4) for material entry and a fine particle discharge pipe (14) are provided at the upper part of the powder selection chamber (101); a coarse particle discharge pipe (13) and a medium particle discharge pipe (18) are provided at the lower part of the powder selection chamber (101); the fine particle discharge pipe (14) is connected to a negative pressure fan to form a negative pressure in the powder selection chamber (101); The rotor structure comprises a cage-shaped inner rotor body (8) and an outer rotor body (8a) arranged in a rotating space, wherein an outer powder selection gap (5) is formed between the outer rotor body (8a) and the air guide structure (10), and an inner powder selection gap (5a) is formed between the outer rotor body (8a) and the inner rotor body (8); rotor blades are arranged inside the inner rotor body (8) at even intervals along the circumference, and the rotor blades are used to scatter coarse particles and medium particles entering the inner rotor body (8) to the outside of the rotor body (8); the fine particle discharge pipe (14) is located above the inner rotor body (8) and is used to discharge the fine particles in the inner rotor body (8); the coarse particle discharge pipe (13) is located outside the outer rotor body (8a) and is used to receive and discharge the coarse particles; and the medium particle discharge pipe (18) is located below the outer rotor body (8a) and is used to discharge the medium particles; A drive structure, comprising a drive motor (11) and a drive shaft (12), wherein the drive shaft (12) is driven to rotate by the drive motor (11), and the drive shaft (12) is connected and matched with the rotor structure to drive the inner rotor body (8) and the outer rotor body (8a) to rotate synchronously; The inner rotor body (8) is provided with a vortex breaking structure (9), and the vortex breaking structure (9) is used to transform the airflow in the inner rotor body (8) from a vortex airflow into a vertical airflow and enter the fine particle discharge pipe (14); A synchronously rotating spreading disc (6) is provided on the upper part of the rotor structure, and the material entering from the feeding structure (4) falls on the spreading disc (6) and is centrifugally thrown to the surroundings before leaving the spreading disc (6); The upper portion of the inner rotor body (8) is clearance-matched with the fine particle discharge pipe (14), and a sealing groove structure (17) and a sealing ring structure (16) are provided at the fitting position; A material blocking structure (7) is provided in the powder selection chamber (101), and the material blocking structure (7) is used to block the material thrown out from the material spreading plate (6) and make the material fall into the outer layer powder selection gap (5); The powder selection chamber (101) is formed in the powder selection housing (1); the upper part of the powder selection housing (1) is connected to a transfer structure (2) for accommodating a material spreading disc (6) and a material blocking structure (7); a transfer space (201) is formed in the transfer structure (2); and both the material spreading disc (6) and the material blocking structure (7) are located in the material blocking space; The material blocking structure (7) comprises a material blocking lining plate, which surrounds the outer side of the material spreading plate (6) and is connected end to end to form a cylindrical shape.

2. The horizontal eddy current three-separation powder separator according to claim 1 is characterized in that: A top mounting shell (3) is arranged above the adapter structure (2), and the drive structure is arranged on the top mounting shell (3).

3. The horizontal eddy current three-separation powder separator according to claim 1 is characterized in that: The coarse particle discharge pipe (13) comprises a conical transition body, the transition body comprising a middle cone connected to the outer layer powder selection gap (5), the lower part of the middle cone is connected to the lower cone, and the middle cone and the lower cone are connected to form a collection channel.

4. The horizontal eddy current three-separation powder separator according to claim 1 is characterized in that: The medium particle discharge pipe (18) comprises an inner cone, the inner cone comprises an inner cone upper portion connected to the inner layer powder selection gap (5a), the inner cone upper portion is connected to the inner cone lower portion and is connected to the inner cone lower portion to form a material collection channel.

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