Baking device for rare earth permanent magnet production

By introducing components such as a heating chamber, a blower, and a stirring tube into the baking device for rare earth permanent magnet production, the problem of small hot air coverage was solved, achieving uniform heating and improved fluidity of rare earth permanent magnet raw materials, thus improving the baking effect.

CN223954548UActive Publication Date: 2026-02-27CHENGDU MINGRUI MAGNETICS CO LTD
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Patent Information

Application Number
CN202520632340.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-02-27
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

The existing rare earth permanent magnet material drying equipment has a small hot air coverage area, which cannot fully contact the permanent magnet material, thus affecting the baking effect.

Method used

A baking device for rare earth permanent magnet production was designed. By combining a heating chamber, a blower, a transmission tube, a stirring tube, and an air inlet, the hot air coverage area is increased. The motor drives the transmission gear to stir the rare earth permanent magnet raw material, thereby improving the contact area and fluidity.

Benefits of technology

The increased contact area between the rare earth permanent magnet raw material and the hot air improved the baking effect and fluidity, ensuring uniform heating of the rare earth permanent magnet raw material.

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Abstract

The embodiment of the utility model provides a baking device for rare earth permanent magnet production, and relates to a baking bin, the upper portion of the baking bin is sleeved with a sealing cover, the sealing cover is fixedly connected with a feeding pipe, the top of the sealing cover is fixedly connected with a supporting block, and the top of the supporting block is fixedly connected with a heating bin; a heating wire is fixedly connected to the inner wall of the heating bin, a transmission pipe penetrates through the bottom of the heating bin, the bottom end of the transmission pipe penetrates through the sealing cover, a plurality of stirring pipes are fixedly connected to the transmission pipe, a plurality of air outlet holes are formed in the stirring pipes, an exhaust bin is fixedly connected to the outer wall of the baking bin, and the exhaust bin is fixedly connected to the inner wall of the baking bin. A plurality of air inlet holes are formed in the side wall of the baking bin, exhaust pipes are fixedly connected to the two side walls of the heating bin, the bottom ends of the exhaust pipes penetrate through the top of the exhaust bin, and the rare earth permanent magnet baking device has the advantages that rare earth permanent magnets are baked comprehensively, and an inner cavity is convenient to clean.
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Description

TECHNICAL FIELD

[0001] The embodiment of the application relates to the technical field of baking devices, in particular to a baking device for rare earth permanent magnet production. BACKGROUND

[0002] The rare earth permanent magnet material is an alloy composed of mixed rare earth metals such as samarium and neodymium and transition metals (such as cobalt and iron), which is pressed and sintered by a powder metallurgy method, magnetized in a magnetic field, and then obtained. When the rare earth permanent magnet material is made into a product, the rare earth permanent magnet material needs to be dried.

[0003] According to the search patent network disclosed in application No. CN202121687968.8, a kind of rare earth permanent magnet material's drying device, the technical scheme has the following defects: only by one place setting hot air fan and hot air pipe to the hot air of drying box import, this mode causes hot air coverage small, cannot be contacted with permanent magnet material comprehensively, thereby affecting the baking effect of rare earth permanent magnet material, therefore, in order to correct the defects described above, we propose a kind of rare earth permanent magnet production baking device. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the embodiment of the application provides a baking device for rare earth permanent magnet production to solve the problem that the hot air coverage is small and cannot be contacted with the permanent magnet material comprehensively.

[0005] The embodiment of the application provides a baking device for rare earth permanent magnet production, which comprises a baking bin: a sealing cover is arranged above the baking bin, a feeding pipe is fixedly connected to the sealing cover, a supporting block is fixedly connected to the top of the sealing cover, a heating bin is fixedly connected to the top of the supporting block, heating wires are fixedly connected to the inner wall of the heating bin, a transmission pipe penetrates the bottom of the heating bin, the bottom end of the transmission pipe penetrates the sealing cover, a plurality of stirring pipes are fixedly connected to the transmission pipe, a plurality of air outlets are formed in the stirring pipes, an exhaust bin is fixedly connected to the outer wall of the baking bin, a plurality of air inlets are formed in the side wall of the baking bin, exhaust pipes are fixedly connected to the side walls of the heating bin, the bottom end of the exhaust pipe penetrates the top of the exhaust bin, a discharging pipe is fixedly connected to the bottom of the baking bin, and a valve is installed on the discharging pipe.

[0006] In some embodiments, a blower is fixedly connected to the top of the heating bin, a blowing pipe is fixedly connected to the blower, and the bottom end of the blowing pipe penetrates the top of the heating bin.

[0007] In some embodiments, an electric motor is fixedly connected to the top of the sealing cover, the output shaft of the electric motor is fixedly connected to a transmission gear, an annular gear is fixedly connected to the transmission pipe, and the annular gear is engaged with the transmission gear.

[0008] In some embodiments, a limiting ring is fixedly connected to the pipe body of the transmission pipe, and the limiting ring is located above the sealing cover.

[0009] In some embodiments, the stirring pipes are equidistantly distributed on the pipe body of the transmission pipe, and the stirring pipes are arranged obliquely.

[0010] In some embodiments, the air inlet holes are equidistantly distributed on the side wall of the roasting bin, and the air inlet holes are arranged obliquely.

[0011] The above description is only a summary of the technical solutions of the embodiments of the present application. In order to more clearly understand the technical means of the embodiments of the present application, the embodiments can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the following specific embodiments of the present application are described.

[0012] 1. By arranging the heating bin, the air blower, the exhaust bin, the transmission pipe, the stirring pipe and the air inlet hole, the rare earth permanent magnet raw material is discharged into the roasting bin through the feeding pipe, then the power supply of the heating wire is connected, the air blower is started, the air blower blows air into the heating bin through the blowing pipe, then the hot air is discharged into the transmission pipe, the hot air is discharged into the stirring pipe through the transmission pipe, then the hot air is discharged into the roasting bin through the air outlet holes, at the same time, the hot air is discharged into the exhaust bin through the exhaust pipe, then the hot air is discharged into the roasting bin through the air inlet hole, thereby increasing the contact area of the rare earth permanent magnet raw material and the hot air, in order to further improve the roasting effect of the rare earth permanent magnet raw material, the motor is started, the motor drives the transmission gear to rotate, the transmission gear drives the ring gear and the transmission pipe to rotate, thereby stirring the rare earth permanent magnet raw material through the stirring pipe to improve the flowability of the rare earth permanent magnet raw material, increase the contact area of the rare earth permanent magnet raw material and the hot air, and further improve the heating effect of the rare earth permanent magnet raw material.

[0013] 2. By arranging the sealing cover, the roasting bin and the heating bin, when cleaning the inner wall of the roasting bin, the sealing cover is taken out upward, the inner wall of the roasting bin can be cleaned, after the cleaning of the inner wall of the roasting bin is completed, the bottom end of the exhaust pipe is inserted into the top of the exhaust bin, and the sealing cover is covered on the top of the roasting bin, thereby completing the reorganization of the sealing cover. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creating laborious work.

[0015] Figure 1 Some perspective views of the present application.

[0016] Figure 2 It is a schematic view of the whole structure of the present application.

[0017] Figure 3 It is a top view of the transmission pipe and the stirring pipe.

[0018] Figure 4 It is a side view of Figure 1 .

[0019] Explanation of reference signs:

[0020] 1, baking bin; 2, sealing cover; 3, feeding pipe; 4, supporting block; 5, heating bin; 6, heating wire; 7, transmission pipe; 8, stirring pipe; 9, air outlet hole; 10, exhaust bin; 11, air inlet hole; 12, exhaust pipe; 13, discharging pipe; 14, air blower; 15, blowing pipe; 16, motor; 17, transmission gear; 18, ring gear; 19, limiting ring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] The terms “comprise” and “have” and any variations thereof in the specification and claims of the present application and the description of the drawings are intended to cover, but not exclude, other content. The word “one” or “a” does not exclude the presence of multiple. Unless otherwise stated, the meaning of “multiple” is two or more (including two), and similarly, “multiple groups” means two or more groups (including two groups).

[0023] The orientation words appearing in the following description are the directions shown in the drawings, and are not limited to the specific structure of the present application. For example, in the description of the present application, the orientation or position relationship indicated by the terms “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “inner”, “outer”, “axial direction”, “radial direction”, “circumferential direction” and the like are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0024] In addition, the expressions of the indicated directions for explaining the operation and configuration of each component of the present embodiment, such as the X direction, the Y direction, and the Z direction, are not absolute but relative, and although the indications are appropriate when each component is in the position shown in the drawing, the directions should be interpreted differently when the positions are changed to correspond to the changes.

[0025] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, the "connection" or "connecting" of the mechanical structure can mean the physical connection, such as fixed connection, detachable connection or integral connection. The "connection" or "connecting" of the circuit structure can mean not only the physical connection, but also the electrical connection or signal connection, for example, it can be directly connected, that is, physically connected, or indirectly connected through at least one intermediate element, as long as the circuit is connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] In order to facilitate the understanding of the technical scheme of the present application, the technical scheme of the present application will be clearly and completely explained below in combination with the drawings in the present application.

[0027] The present application provides a baking device for rare earth permanent magnet production, which comprises a baking bin 1: a sealing cover 2 is sleeved above the baking bin 1, a feeding pipe 3 is fixedly connected to the sealing cover 2, a supporting block 4 is fixedly connected to the top of the sealing cover 2, a heating bin 5 is fixedly connected to the top of the supporting block 4, heating wires 6 are fixedly connected to the inner wall of the heating bin 5, a transmission pipe 7 penetrates the bottom of the heating bin 5, the bottom end of the transmission pipe 7 penetrates the sealing cover 2, a plurality of stirring pipes 8 are fixedly connected to the transmission pipe 7, a plurality of air outlets 9 are formed in the stirring pipes 8, an exhaust bin 10 is fixedly connected to the outer wall of the baking bin 1, a plurality of air inlets 11 are formed in the side wall of the baking bin 1, exhaust pipes 12 are fixedly connected to the two side walls of the heating bin 5, the bottom end of the exhaust pipe 12 penetrates the top of the exhaust bin 10, a discharge pipe 13 is fixedly connected to the bottom of the baking bin 1, and a valve is installed on the discharge pipe 13.

[0028] In the technical scheme of the present application, the air blower 14 and the blowing pipe 15 blow air into the heating bin 5, so that the hot air is discharged into the baking bin 1, the top of the heating bin 5 is fixedly connected to the air blower 14, the air blower 14 is fixedly connected to the blowing pipe 15, the bottom end of the blowing pipe 15 penetrates the top of the heating bin 5, the top of the sealing cover 2 is fixedly connected to the motor 16, the output shaft of the motor 16 is fixedly connected to the transmission gear 17, the transmission pipe 7 is fixedly connected to the ring gear 18, and the ring gear 18 is engaged with the transmission gear 17.

[0029] The technical scheme of the embodiment of the application limits the transmission pipe 7 through the limiting ring 19, improves the working stability of the transmission pipe 7, the limiting ring 19 is fixedly connected on the pipe body of the transmission pipe 7, the limiting ring 19 is located above the sealing cover 2, the plurality of stirring pipes 8 are equidistantly distributed on the pipe body of the transmission pipe 7, and the plurality of stirring pipes 8 are obliquely arranged, and the plurality of air inlet holes 11 are equidistantly distributed on the side wall of the baking bin 1, and the plurality of air inlet holes 11 are obliquely arranged.

[0030] Working principle: in use, the rare earth permanent magnet raw material is discharged into the baking bin 1 through the feeding pipe 3, then the power supply of the heating wire 6 is connected, the air blower 14 is started, the air blower 14 blows air into the heating bin 5 through the blowing pipe 15, then the hot air is discharged into the transmission pipe 7, and then the hot air is discharged into the stirring pipe 8 through the transmission pipe 7, then the hot air is discharged into the baking bin 1 through the plurality of air outlet holes 9, and at the same time, the hot air is discharged into the exhaust bin 10 through the exhaust pipe 12, and then the hot air is discharged into the baking bin 1 through the air inlet hole 11, thereby increasing the contact area of the rare earth permanent magnet raw material and the hot air, in order to further improve the baking effect of the rare earth permanent magnet raw material, the motor 16 is started, the motor 16 drives the transmission gear 17 to rotate, the transmission gear 17 drives the ring gear 18 and the transmission pipe 7 to rotate, thereby stirring the rare earth permanent magnet raw material through the stirring pipe 8, so as to improve the flowability of the rare earth permanent magnet raw material, and further improve the heating effect of the rare earth permanent magnet raw material, when it is needed to discharge the rare earth permanent magnet raw material, the valve of the discharge pipe 13 is opened, and the rare earth permanent magnet raw material can be discharged, when it is needed to clean the inner wall of the baking bin 1, the sealing cover 2 is taken upward, and the inner wall of the baking bin 1 can be cleaned, after the cleaning of the inner wall of the baking bin 1 is completed, the bottom end of the exhaust pipe 12 is inserted into the top of the exhaust bin 10, and the sealing cover 2 is covered on the top of the baking bin 1, so that the recombination of the sealing cover 2 is completed.

[0031] Those skilled in the art can understand that although some embodiments herein include certain features rather than other features included in other embodiments, the combination of features of different embodiments means to be within the scope of the application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0032] The above-described embodiments are only used to illustrate the technical solutions of the application, rather than limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A baking device for rare earth permanent magnet production, characterized by, The utility model provides a baking warehouse (1) is provided with: the upper cover of baking warehouse (1) is equipped with sealing cover (2), sealing cover (2) is fixedly connected with the feeding pipe (3) on, and the top of sealing cover (2) is fixedly connected with support block (4), the top of support block (4) is fixedly connected with heating warehouse (5), and the inner wall of heating warehouse (5) is fixedly connected with heating wire (6), and the bottom of heating warehouse (5) is penetrated with transmission pipe (7), the bottom end of transmission pipe (7) is penetrated sealing cover (2), and transmission pipe (7) is fixedly connected with a plurality of stirring pipe (8), and a plurality of air outlet (9) are formed in stirring pipe (8), and the outer wall of baking warehouse (1) is fixedly connected with exhaust chamber (10), and a plurality of air inlet (11) are formed in the side wall of baking warehouse (1), and the both sides wall of heating warehouse (5) is fixedly connected with exhaust pipe (12), and the bottom end of exhaust pipe (12) is penetrated the top of exhaust chamber (10), and the bottom of baking warehouse (1) is fixedly connected with discharge pipe (13), and discharge pipe (13) is installed with valve.

2. The baking device for producing a rare earth permanent magnet according to claim 1, characterized in that, The top of heating warehouse (5) is fixedly connected with air blower (14), and air blower (14) is fixedly connected with blowing pipe (15), and the bottom end of blowing pipe (15) is penetrated the top of heating warehouse (5).

3. The baking device for producing a rare earth permanent magnet according to claim 1, characterized in that, The top of sealing cover (2) is fixedly connected with motor (16), and the output shaft of motor (16) is fixedly connected with transmission gear (17), and the transmission pipe (7) is fixedly connected with ring gear (18), and ring gear (18) is engaged with transmission gear (17).

4. The baking device for producing a rare earth permanent magnet according to claim 1, characterized in that, The pipe body of transmission pipe (7) is fixedly connected with limiting ring (19), and limiting ring (19) is located above sealing cover (2).

5. The baking device for producing a rare earth permanent magnet according to claim 1, characterized in that, A plurality of stirring pipe (8) are equidistantly distributed on the pipe body of transmission pipe (7), and a plurality of stirring pipe (8) are inclinedly arranged.

6. The baking device for producing a rare earth permanent magnet according to claim 1, characterized in that, A plurality of air inlet (11) are equidistantly distributed on the side wall of baking warehouse (1), and a plurality of air inlet (11) are inclinedly arranged.

Citation Information

Patent Citations

  • Drying device for rare earth permanent magnet material

    CN216048920U