Mixing device for magnetic materials

Abstract

A mixing device for magnetic materials, characterized in that it comprises a device frame, wherein a storage container and a water container are arranged on the outside of a base plate, and further comprising: a mixing container, wherein the two ends of the mixing container are each rotatably connected to a first connecting pipe and a second connecting pipe, the first connecting pipe is firmly connected to the device frame, the second connecting pipe is rotatably connected to the device frame, the outer sides of the first connecting pipe and the second connecting pipe are rotatably connected to the connecting frame, and the connecting frames are firmly connected to the mixing container; a fixed cylinder firmly connected to the first connecting pipe, wherein the fixed cylinder is arranged inside the mixing container, through-grooves are formed on the top and bottom of the fixed cylinder, and a mixing part is arranged in a flow-connected manner between the first connecting pipe and the second connecting pipe, wherein the mixing part is arranged inside the fixed cylinder; Several separating frames arranged in a ring around the mixing part, with arcuate plates firmly connected between each of the several separating frames, the separating frames firmly connected to the second connecting tube via support plates, separating units arranged inside the separating frames, and inlet grooves formed on the undersides of the separating frames; and the inner side of the fixed cylinder is firmly connected to several stirring elements, and the stirring elements are arranged in a ring around the central axis of the fixed cylinder.

Description

Technical area

[0001] The present utility model relates to the technical field of mixing and in particular to a mixing device for magnetic materials. State of the art

[0002] The production of magnetic materials, including ferrites, neodymium-iron-boron (NdFeB) and soft magnetic materials, involves several process steps such as mixing, shaping and sintering, with the mixing process having a decisive influence on the material properties.

[0003] In wet mixing processes for magnetic materials, such as NdFeB powder, powder agglomeration and loss of temperature control are key problems that negatively impact material properties. Conventional methods rely on a single propeller agitator, which prevents homogeneous mixing; moreover, the heat generated by friction leads to increased agglomeration.

[0004] Therefore, it is necessary to provide a mixing device for magnetic materials that aims to solve the aforementioned technical problems. Content of the utility model

[0005] Against this background, and taking into account the shortcomings of the prior art, the present utility model proposes a mixing device for magnetic materials which is intended to solve the aforementioned problems in the prior art.

[0006] The present utility model provides a mixing device for magnetic materials, comprising a device frame, wherein a storage container and a water container are arranged on the outside of a base plate. The mixing device further comprises: a mixing container, wherein the two ends of the mixing container are each rotatably connected to a first connecting pipe and a second connecting pipe, the first connecting pipe is fixedly connected to the device frame, the second connecting pipe is rotatably connected to the device frame, the outer sides of the first connecting pipe and the second connecting pipe are rotatably connected to the connecting frames, and the connecting frames are fixedly connected to the mixing container; a fixed cylinder firmly connected to the first connecting pipe, wherein the fixed cylinder is arranged inside the mixing container, through-grooves are formed on the top and bottom of the fixed cylinder, and a mixing part is arranged in a flow-connected manner between the first connecting pipe and the second connecting pipe, wherein the mixing part is arranged inside the fixed cylinder; several separating frames arranged in a ring around the mixing part, with arc-shaped plates firmly connected between each of the several separating frames, the separating frames firmly connected to the second connecting pipe via support plates, separating units arranged inside the separating frames, and inlet grooves formed on the undersides of the separating frames; and the inner side of the solid cylinder is firmly connected to several stirring elements, and the stirring elements are arranged in a ring around the central axis of the solid cylinder.

[0007] Furthermore, the top of the mixing tank is permanently connected to an inlet pipe. The bottom of the mixing tank is permanently connected to an outlet pipe. Electrically operated valves are located on the outer sides of both the inlet and outlet pipes. Connection devices for connecting and disconnecting external pipelines are also located on the outer sides of both the inlet and outlet pipes.

[0008] Furthermore, the mixing part comprises a stirring cylinder, wherein one end of the stirring cylinder is rigidly connected to the first connecting pipe, the other end of the stirring cylinder is rotatably connected to a turntable, the turntable is rigidly connected to the second connecting pipe, the stirring cylinder is fluidically connected to the second connecting pipe, one side of the turntable is rigidly connected to several stirring rods, and inlet and outlet grooves are formed on the outside of the stirring cylinder.

[0009] Furthermore, the separation units comprise dispersing cylinders arranged inside the separation frames. The outer surfaces of the dispersing cylinders are rigidly connected to several drive brushes. The two ends of the dispersing cylinders are rigidly connected to rotary rods. The outer surfaces of both rotary rods are rotatably connected to sliding blocks. The outer surfaces of one of the rotary rods are rigidly connected to gears. Racks are meshed on the outer surfaces of the gears. The racks are rigidly connected to the separation frames. Reciprocating threaded spindles are arranged on the outer surfaces of the other rotary rods, penetrating the sliding blocks and connected to them via ball nuts. The outer surfaces of the reciprocating threaded spindles are rotatably connected to cross plates. The cross plates are rigidly connected to the separation frames. First bevel gears are rigidly connected to one end of the reciprocating threaded spindles.A bevel gear plate is rigidly connected to one end of the fixed cylinder. The bevel gear plate is meshed with the first bevel gears.

[0010] Furthermore, several centrifugal grooves are formed on the outer surfaces of the dispersion cylinders. Several striking balls are arranged inside the dispersion cylinders. Elastic plates are firmly connected between the striking balls and the interior of the dispersion cylinders.

[0011] Furthermore, the stirring elements comprise stirring frames, wherein the stirring frames are firmly connected inside the mixing vessel, cooling plates are arranged inside the stirring frames, the cooling plates penetrate one side of the stirring frames and are slidably connected to the stirring frames, cooling plates are firmly connected at the lower and upper ends inside the stirring frames, the cooling plates rest against the cooling plates, and the ends of the cooling plates facing the fixed cylinder are firmly connected with contact pins.

[0012] Furthermore, the stirring elements include sieve plates, wherein the sieve plates are arranged on the upper sides of the stirring frames, two sliding rods are firmly connected to the upper sides of the stirring frames, both sliding rods penetrate the sieve plates and are slidably connected to the sieve plates, springs are firmly connected between the sieve plates and one end of the sliding rods, which serve to retract the sieve plates to their starting position, and pull ropes are firmly connected between the ends of the cooling plates facing the fixed cylinder and the sieve plates.

[0013] Furthermore, a feed pipe is rotatably arranged between the bottom of the storage tank and the second connecting pipe, and a water pipe is rotatably connected between the water tank and the first connecting pipe.

[0014] Furthermore, both ends of the mixing vessel are rigidly connected to fixed frames. The outer sides of the fixed frames are rotatably connected to rotating rings. The outer sides of the rotating rings are rigidly connected to inlet water pipes. The inlet water pipes are rigidly connected to the feed pipe. Control valves are rigidly mounted on the outer sides of the inlet water pipes. Distribution pipes are flow-connected between the rotating rings and the multiple mixing frames. A support column is mounted on the side wall of the bottom of the mixing vessel. A rotating column is mounted vertically on the support column via a bearing. A second bevel gear is mounted on the top of the rotating column. A bevel gear ring, meshing with the second bevel gear, is mounted on the outer surface of the fixed cylinder. A scraper is mounted on the side wall of the rotating column. A brush is mounted on the side wall of the scraper facing the mixing vessel.

[0015] Compared to the prior art, the advantageous effects of the present utility model are as follows: Within the mixing section, zinc stearate and water are supplied through the first and second connecting tubes, whereby the powder passing through the separating frames is mixed batchwise. The second connecting tube drives the fixedly attached rotary disc to rotate; the stirring rods on one side of the rotary disc stir the powder and water, and with the rotation of the multiple separating frames, the mixed liquid exits through the downward-facing separating frames and is again guided through the separating frames for separation and mixing, thereby improving the overall mixing effect. Description of the attached drawings Fig. Figure 1 is a schematic representation of a mixing device according to an embodiment of the present utility model; Fig. Figure 2 is a structural representation of a mixing container according to an embodiment of the present utility model; Fig. Figure 3 is a structural representation of a fixed cylinder according to an embodiment of the present utility model; Fig. Figure 4 is a sectional view of a mixing container according to an embodiment of the present utility model; Fig. Figure 5 is a sectional view of the fixed cylinder according to an embodiment of the present utility model; Fig. Figure 6 is a sectional view of a partition frame according to an embodiment of the present utility model; Fig. Figure 7 is a structural representation of a stirring cylinder according to an embodiment of the present utility model; Fig. Figure 8 is a structural representation of a bevel gear plate according to an embodiment of the present utility model; Fig. Figure 9 is a sectional view of a dispersion cylinder according to an embodiment of the present utility model; Fig. Figure 10 is a structural representation of a stirring frame according to an embodiment of the present utility model; Fig. Figure 11 is a sectional view of the stirring frame according to an embodiment of the present utility model; and Fig. Figure 12 is another sectional view of the mixing container according to an embodiment of the present utility model.

[0016] In the figures: 1. Device frame; 101. Base plate; 102. Water tank; 1021. Water pipe; 103. Storage tank; 1031. Feed pipe; 2. Mixing container; 201. Inlet pipe; 202. Outlet pipe; 301. First connecting pipe; 302. Second connecting pipe; 303. Connecting frame; 4. Fixed cylinder; 401. Bevel gear plate; 5. Agitator frame; 501. Cooling plate; 502. Cooling plate; 503. Contact pin; 504. Slide rod; 505. Sieve plate; 506. Spring; 507. Pull cable; 6. Agitator cylinder; 601. Turntable; 602. Inlet and outlet groove; 603. Agitator rod; 7. Separation frame; 700. Arc-shaped plate; 701. Inlet groove; 702. Dispersing cylinder; 7021. Drive brush; 7022. Impact ball; 7023. Elastic plate; 7024. Centrifugal groove; 703. Gear; 704. Rack; 705. Sliding block; 706. Reciprocating threaded spindle; 707. First bevel gear; 708. Rotary rod; 8. Fixed frame; 801. Rotating ring; 802. Inlet water pipe; 803. Distribution pipe; 901. Support column; 902. Rotating column; 903. Second bevel gear; 904. Bevel gear ring; 905. Scraper. Examples of implementation

[0017] The technical solutions of the embodiments of this utility model are described clearly and completely below with reference to the accompanying drawings. It is obvious that the described embodiments are only parts of the embodiments of this utility model and not all embodiments. Based on the embodiments in this utility model, all further embodiments that a person skilled in the art could obtain in the field without inventive activity fall within the scope of protection of this utility model.

[0018] In the description of this utility model, it is understood that the terms "center," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "upper edge," "lower edge," "inside," "outside," etc., denote the orientations or positional relationships based on those shown in the drawings. These terms serve only to better describe this utility model and to simplify the description, but do not indicate or imply that the designated device or component must have a specific orientation, be designed and operated in a specific orientation, and therefore must not be understood as a limitation of this utility model.

[0019] With reference to the Fig. Figures 1 to 11 describe the present embodiment as a mixing device for magnetic materials, comprising a device frame 1, wherein a storage container 103 and a water container 102 are arranged on the outside of a base plate 101. The mixing device further comprises: a mixing container 2, wherein the two ends of the mixing container 2 are each rotatably connected to a first connecting pipe 301 and a second connecting pipe 302, the first connecting pipe 301 is fixedly connected to the device frame 1, the second connecting pipe 302 is rotatably connected to the device frame 1, the outer sides of the first connecting pipe 301 and the second connecting pipe 302 are rotatably connected to connecting frames 303, and the connecting frames 303 are fixedly connected to the mixing container 2; a fixed cylinder 4 connected to the first connecting pipe 301, wherein the fixed cylinder 4 is arranged inside the mixing container 2, through-grooves are formed on the top and bottom of the fixed cylinder 4, and a mixing part is arranged in a flow-connected manner between the first connecting pipe 301 and the second connecting pipe 302, wherein the mixing part is arranged inside the fixed cylinder 4; several separating frames 7 arranged in a ring around the mixing part, with arcuate plates 700 firmly connected between each of the several separating frames 7, the separating frames 7 being firmly connected to the second connecting tube 302 via support plates, separating units arranged inside the separating frames 7, and inlet grooves 701 formed on the undersides of the separating frames 7; and the inner side of the fixed cylinder 4 is firmly connected to several stirring elements, and the stirring elements are arranged in a ring around the central axis of the fixed cylinder 4.

[0020] It is understood that when the powder enters the interior of the mixing vessel 2, it falls through the through-grooves formed on the fixed cylinder 4 into the separation units inside the separation frames 7. The agglomerates are dispersed by the separation units, and the magnetic material, after passing through the separation frames 7, falls into the interior of the mixing section. Within the mixing section, zinc stearate and water are supplied through the first connecting tube 301 and the second connecting tube 302, whereby the powders passing through the multiple separation frames 7 are mixed batchwise. With the rotation of the second connecting tube 302, the mixture inside the mixing section again falls through the separation frames 7 into the mixing vessel 2, thus ensuring sufficient initial mixing of powder and water. This prevents agglomeration of the magnetic material during the initial entry process and avoids any impairment of subsequent mixing efficiency.

[0021] With reference to the Fig. In some embodiments of the present utility model, the upper side of the mixing vessel 2 is permanently connected to an inlet pipe 201. The lower side of the mixing vessel 2 is permanently connected to an outlet pipe 202. Electrically actuated valves are arranged on the outer sides of both the inlet pipe 201 and the outlet pipe 202. Connection devices for connecting and disconnecting external pipelines are arranged on the outer sides of both the inlet pipe 201 and the outlet pipe 202.

[0022] With reference to the Fig. 7, according to some embodiments of the present utility model, the mixing part comprises a stirring cylinder 6, wherein one end of the stirring cylinder 6 is fixedly connected to the first connecting pipe 301, the other end of the stirring cylinder 6 is rotatably connected to a turntable 601, the turntable 601 is fixedly connected to the second connecting pipe 302, the stirring cylinder 6 is fluidically connected to the second connecting pipe 302, one side of the turntable 601 is fixedly connected to several stirring rods 603, and inlet and outlet grooves 602 are formed on the outside of the stirring cylinder 6.

[0023] It is understandable that after the feeding is completed, the arc-shaped plates 700 close off the lower inlet and outlet grooves 602 of the stirring cylinder 6 when the separating frames 7 rotate, with the rotary disc 601 and the stirring rods 603 forcibly mixing the powder and the liquid.

[0024] With reference to the Fig. Sections 9 to 11 comprise the separation units according to some embodiments of the present utility model, dispersing cylinders 702, which are arranged inside the separation frames 7. The outer surfaces of the dispersing cylinders 702 are rigidly connected to several drive brushes 7021. The two ends of the dispersing cylinders 702 are rigidly connected to rotary rods 708. The outer surfaces of both rotary rods 708 are rotatably connected to sliding blocks 705. The outer surfaces of one of the rotary rods 708 are rigidly connected to gears 703. Racks 704 are meshed on the outer surfaces of the gears 703. The racks 704 are rigidly connected to the separation frames 7. Reciprocating threaded spindles 706 are arranged on the outer surfaces of the other rotary rods 708, which penetrate the sliding blocks 705 and are connected to the sliding blocks 705 via ball nuts. The outer sides of the reciprocating threaded spindles 706 are rotatably connected to cross plates.The cross plates are rigidly connected to the separating frames 7. First bevel gears 707 are rigidly connected to one end of the reciprocating threaded spindles 706. A bevel gear head 401 is rigidly connected to one end of the fixed cylinder 4. The bevel gear head 401 is meshed with the first bevel gears 707.

[0025] Specifically, several centrifugal grooves 7024 are formed on the outer surfaces of the dispersion cylinders 702. Several impact balls 7022 are arranged inside the dispersion cylinders 702. Elastic plates 7023 are rigidly connected between the impact balls 7022 and the interior of the dispersion cylinders 702.

[0026] It is understandable that when the powder falls into the interior of the separating frames 7, the separating frames 7 rotate, with fine powder falling directly through the second connecting tube 302 into the interior of the stirring cylinder 6. If agglomerated powder is present, the separating frames 7 rotate, and the dispersing cylinders 702 rotate and move up and down together with the separating frames 7, while the dispersing cylinders 702 themselves also rotate. During rotation, the drive brushes 7021 come into contact with the powder inside the separating frames 7, continuously breaking up and separating the agglomerated powder. The powder enters the interior of the dispersing cylinders 702, and during rotation, the impact balls 7022 strike the cylinder walls under centrifugal force, breaking up the agglomerated powder.

[0027] In some embodiments of the present utility model, the stirring elements comprise stirring frames 5, wherein the stirring frames 5 are rigidly connected inside the mixing vessel 2, cooling plates 501 are arranged inside the stirring frames 5, the cooling plates 501 penetrate one side of the stirring frames 5 and are slidably connected to the stirring frames 5, cooling plates 502 are rigidly connected at the lower and upper ends inside the stirring frames 5, the cooling plates 502 bear against the cooling plates 501, and the ends of the cooling plates 501 facing the fixed cylinder 4 are rigidly connected with contact pins 503.

[0028] Specifically, the stirring elements further comprise sieve plates 505, wherein the sieve plates 505 are arranged on the upper sides of the stirring frames 5, two sliding rods 504 are fixedly connected to the upper sides of the stirring frames 5, both sliding rods 504 penetrate the sieve plates 505 and are slidably connected to the sieve plates 505, springs 506 are fixedly connected between the sieve plates 505 and one end of the sliding rods 504, which serve to retract the sieve plates 505 to the initial position, and pull cables 507 are fixedly connected between the ends of the cooling plates 501 facing the fixed cylinder 4 and the sieve plates 505.

[0029] It is understandable that temperature sensors continuously monitor the temperature inside the mixing vessel 2 and trigger a water circulation system if a threshold value is exceeded. The control valves of the inlet water pipes 802 open, and cooling water is directed through the distribution pipes 803 into the individual agitator frames 5. The water flow pushes the cooling plates 501 outwards, with the contact pins 503 forming gap channels with the fixed cylinder 4. Upon contact with the water, the cooling plates 502 form cold surfaces and simultaneously provide contact-based cooling. The sieve plates 505 unfold to retain agglomerates, with the springs 506 periodically retracting them to their initial position, thus sieving. The rotation of the inclined mixing vessel 2 causes the material to flow past the cooling plates 501, mechanically breaking up any agglomerates.The material entering the separation frames 7 through the through-grooves is subjected to a second dispersion under centrifugal force. When the cooling plates 501 are retracted, any remaining water is squeezed out, thus achieving an efficient circulation of the cooling medium.

[0030] With reference to the Fig. 1 is a feed pipe 1031 according to some embodiments of the present utility model rotatably arranged in a flow-connected manner between the bottom of the storage container 103 and the second connecting pipe 302, and a water pipe 1021 is rotatably connected between the water container 102 and the first connecting pipe 301.

[0031] Specifically, the two ends of the mixing vessel 2 are rigidly connected to fixed frames 8. The outer surfaces of the fixed frames 8 are rotatably connected to rotary rings 801. The outer surfaces of the rotary rings 801 are rigidly connected to inlet water pipes 802. The inlet water pipes 802 are rigidly connected to the feed pipe 1031. Control valves are rigidly arranged on the outer surfaces of the inlet water pipes 802. Distribution pipes 803 are flow-connected between the rotary rings 801 and the multiple mixing frames 5.

[0032] With reference to the Fig.In some embodiments of the present utility model, a support column 901 is arranged on the side bottom wall of the mixing container 2. A rotary column 902 is vertically mounted on the support column 901 via a bearing. A second bevel gear 903 is arranged on the top of the rotary column 902. A bevel gear ring 904, meshing with the second bevel gear 903, is arranged on the outer surface of the fixed cylinder 4. A scraper 905 is arranged on the side wall of the rotary column 902. A brush is arranged on the side wall of the scraper 905 facing the mixing container 2.

[0033] It is understandable that when the mixing container 2 is rotated by the provided second bevel gear 903 and the bevel gear ring 904, the rotating column 902 itself rotates, allowing the scraper 905 and the brush to remove the moist mixture adhering to the bottom of the mixing container 2 and further improving the mixing effect.

[0034] It is obvious that a person skilled in the art can make various modifications and adaptations to the present utility model without altering its concept and scope. Provided that these modifications and adaptations fall within the scope of protection of the claims of the present utility model and their equivalent technical solutions, the present utility model shall also encompass these modifications and adaptations.

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