Magnetic fluid preparation equipment

Abstract

The utility model provides magnetic fluid preparation equipment which comprises a grinding box, a first-stage grinding cavity is formed in the grinding box, a plurality of second-stage grinding cavities are formed in the bottom of the first-stage grinding cavity, and a grinding mechanism matched with the second-stage grinding cavities and the first-stage grinding cavity is arranged in the grinding box. Compared with the prior art, the magnetic fluid preparation device has the advantages that due to the design of the grinding mechanism, materials forming magnetic fluid can be quickly ground, and the preparation efficiency of the magnetic fluid can be improved through primary grinding and secondary grinding.

Description

Technical Field

[0001] This invention relates to a magnetic fluid preparation device, belonging to the field of magnetic fluid preparation. Background Technology

[0002] Magnetofluid is a functional material that possesses both the fluidity of a liquid and the magnetic properties of a solid magnetic material. It is a stable colloidal liquid composed of magnetic solid particles with a diameter on the nanometer scale (10 nm), a carrier liquid, and a surfactant. This fluid has no magnetic attraction when static, but exhibits magnetism when an external magnetic field is applied. This allows it to be widely used in various demanding applications such as magnetic fluid sealing, vibration damping, medical devices, sound modulation, optical displays, and magnetic fluid mineral processing. However, currently used magnetic fluid preparation processes are complex, inefficient, and costly, greatly limiting their widespread application, especially in mineral processing. Mineral processing requires a large amount of magnetic fluid, resulting in significant losses; therefore, a simple, efficient, and low-cost preparation process is needed. Traditional ball milling directly grinds magnetite (Fe3O4). However, ball mills have low energy utilization, requiring long processing times and consuming high energy. Furthermore, Fe3O4 is oxidized to Fe2O3, thus degrading the effectiveness of the prepared magnetic fluid. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a magnetofluid preparation device.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] A magnetohydrodynamic (MHD) preparation apparatus includes a grinding chamber, wherein a primary grinding chamber is provided inside the grinding chamber, and a plurality of secondary grinding chambers are provided at the bottom of the primary grinding chamber. The grinding chamber is provided with a grinding mechanism that cooperates with the secondary grinding chambers and the primary grinding chambers.

[0006] Furthermore, the grinding mechanism includes a primary grinding assembly and a secondary grinding assembly. The primary grinding assembly includes two sets of rotating shafts rotatably connected to the top of the primary grinding chamber. A grinding roller is installed on the outer surface of one end of the rotating shaft inside the primary grinding chamber. A gear is installed on one end of the rotating shaft that extends movably through to the outside of the grinding box. Several gears on the same side mesh with each other. A pulley is installed on the rotating shaft at the end and outside the gear.

[0007] Furthermore, the secondary grinding assembly includes a motor shaft rotatably connected to the bottom of the primary grinding chamber and a motor installed on the outside of the grinding box. Several grinding wheels are mounted on the outer surface of one end of the motor shaft inside the primary grinding chamber. The grinding wheels cooperate with the secondary grinding chamber. The end of the motor shaft extends movably through to the outside of the grinding box and connects to the output end of the motor. A second pulley is mounted on the outer surface of the motor shaft at one end outside the grinding box. The second pulley and the first pulley are connected by a transmission belt.

[0008] Furthermore, a collection chamber is provided at the bottom of the grinding box, the top of the collection chamber is connected to the bottom of several secondary grinding chambers, and a baffle plate is inserted into the top of the collection chamber, the top of the baffle plate is sealed together with the bottom opening of the secondary grinding chamber.

[0009] Furthermore, the outer surface of the baffle plate is connected and fixed to the grinding box by bolts.

[0010] Furthermore, the secondary grinding chamber has a trapezoidal structure that is wider at the top and narrower at the bottom, and the grinding surface of the grinding wheel is adapted to the bottom of the secondary grinding chamber.

[0011] Furthermore, a mounting base is installed on the side of the grinding box, and the motor is mounted on the mounting base.

[0012] Furthermore, a conical support is installed at the bottom of the primary grinding chamber and between the two secondary grinding chambers, and the motor shaft is rotatably connected to the conical support.

[0013] The beneficial effects of this utility model are:

[0014] The grinding mechanism is designed to quickly grind the materials that form the magnetic fluid. Through primary and secondary grinding, the preparation efficiency of the magnetic fluid can be improved.

[0015] Through the design of the primary grinding component, the transmission belt drives the pulley to rotate, and the pulley rotation drives the side shaft to rotate. The rotation of the shaft, through the meshing of several gears, enables the four grinding rollers to rotate synchronously. The four grinding rollers are paired up to form two grinding and crushing areas, so that the zirconia beads added to the primary grinding chamber will be crushed into powder particles by the primary grinding component.

[0016] Through the design of the two-stage grinding assembly, the motor drives the motor shaft to rotate, and the motor shaft drives several grinding wheels to rotate. The rotating grinding wheels grind and crush the material accumulated inside the two-stage grinding chamber, ultimately forming a magnetic fluid.

[0017] With the baffle plate designed, the baffle plate acts as the bottom inner wall of the secondary grinding chamber when the device is working normally. When unloading is required, the baffle plate can be pulled out to open the connecting channel between the secondary grinding chamber and the collection chamber, so that the material can fall into the collection chamber for material collection.

[0018] Through the design of pulley one, transmission belt and pulley two, the first grinding component can be driven to operate synchronously when the motor drives the second grinding component. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a magnetofluid preparation device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of a magnetohydrodynamic preparation device according to the present invention. Figure 1 ;

[0022] Figure 3 This is a partial structural diagram of a magnetohydrodynamic preparation device according to the present invention. Figure 1 ;

[0023] Figure 4 This is a partial structural diagram of a magnetohydrodynamic preparation device according to the present invention. Figure 2 ;

[0024] Figure 5 This is a schematic diagram of the internal structure of a magnetohydrodynamic preparation device according to the present invention. Figure 2 .

[0025] In the diagram, 1. Grinding box; 2. Primary grinding chamber; 3. Secondary grinding chamber; 4. Collection chamber; 5. Baffle plate; 6. Rotating shaft; 7. Grinding roller; 8. Gear; 9. Belt pulley one; 10. Transmission belt; 11. Motor shaft; 12. Grinding wheel; 13. Belt pulley two; 14. Motor; 15. Mounting base. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 This utility model provides a technical solution for a magnetofluid preparation device, including a grinding box 1. The grinding box 1 has a primary grinding chamber 2 inside, and a plurality of secondary grinding chambers 3 are formed at the bottom of the primary grinding chamber 2. The secondary grinding chambers 3 have a trapezoidal structure that is wider at the top and narrower at the bottom. The grinding surface of the grinding wheel 12 is adapted to the bottom of the secondary grinding chambers 3. The grinding box 1 is provided with a grinding mechanism that cooperates with the secondary grinding chambers 3 and the primary grinding chambers 2. Through the design of the grinding mechanism, the material for forming magnetofluid can be ground quickly. Through the primary grinding and secondary grinding, the preparation efficiency of magnetofluid can be improved.

[0028] See Figures 1-4 The grinding mechanism includes a primary grinding assembly and a secondary grinding assembly. The primary grinding assembly includes two sets of rotating shafts 6 rotatably connected to the top of the primary grinding chamber 2. Grinding rollers 7 are mounted on the outer surface of one end of the rotating shaft 6 inside the primary grinding chamber 2. A gear 8 is mounted on one end of the rotating shaft 6 that extends movably through the outer side of the grinding box 1. Several gears 8 on the same side mesh with each other. A pulley 9 is mounted on the end of the rotating shaft 6 and outside the gear 8. Through the design of the primary grinding assembly, the transmission belt 10 drives the pulley 9 to rotate. The rotation of the pulley 9 drives the rotating shaft 6 on the side to rotate. The rotation of the rotating shaft 6, through the meshing of several gears 8, enables the synchronous rotation of the four grinding rollers 7. The four grinding rollers 7 form two grinding and pulverizing areas in pairs, so that the zirconia beads added to the primary grinding chamber 2 are pulverized into powder particles by the primary grinding assembly.

[0029] See Figures 1-5The secondary grinding assembly includes a motor shaft 11 rotatably connected to the bottom of the primary grinding chamber 2 and a motor 14 mounted on the outside of the grinding box 1. A mounting base 15 is mounted on the side of the grinding box 1, and the motor 14 is mounted on the mounting base 15. Several grinding wheels 12 are mounted on the outer surface of one end of the motor shaft 11 inside the primary grinding chamber 2. The grinding wheels 12 cooperate with the secondary grinding chamber 3. The end of the motor shaft 11 extends movably through to the outside of the grinding box 1 and connects to the output end of the motor 14. A second pulley 13 is mounted on the outer surface of one end of the motor shaft 11 outside the grinding box 1. The second pulley 13 and the first pulley 9 are connected by a transmission belt 10. Through the design of the secondary grinding assembly, the motor 14 drives the motor shaft 11 to rotate, and the motor shaft 11 drives several grinding wheels 12 to rotate. The rotating grinding wheels 12 grind and crush the material accumulated inside the secondary grinding chamber 3, ultimately forming a magnetic fluid.

[0030] See Figures 1-2 The grinding chamber 1 has a collection chamber 4 at its bottom. The top of the collection chamber 4 is connected to the bottom of several secondary grinding chambers 3. A baffle plate 5 is inserted into the top of the collection chamber 4. The top of the baffle plate 5 is sealed to the bottom opening of the secondary grinding chamber 3. The outer surface of the baffle plate 5 is connected and fixed to the grinding chamber 1 by bolts. With the design of the baffle plate 5, when the device is working normally, the baffle plate 5 is used as the bottom inner wall of the secondary grinding chamber 3. When it is necessary to unload the material, the baffle plate 5 can be pulled out to open the communication channel between the secondary grinding chamber 3 and the collection chamber 4, so that the material can fall and be collected into the collection chamber 4 for material collection.

[0031] See Figure 2 , Figure 5 A conical support seat is installed at the bottom of the primary grinding chamber 2 and between the two secondary grinding chambers 3. The motor shaft 11 is rotatably connected to the conical support seat. Through the design of the conical support seat, while providing support for the motor shaft 11, it can also guide the material falling from the primary grinding chamber 2 into the secondary grinding chamber 3 in a conical manner, so that the material can fall into the secondary grinding chamber 3 quickly.

[0032] In use, zirconia beads are filled into the primary grinding chamber 2. After being crushed and ground by the primary grinding components, the zirconia beads fall into several secondary grinding chambers 3 at the bottom of the primary grinding chamber 2. Then, Fe3O4 powder slurry is added to the secondary grinding chambers 3 to perform secondary grinding of the Fe3O4 powder slurry and zirconia bead powder. During the secondary grinding, sodium silicate, sodium hexametaphosphate, iron powder, ferrosilicon powder and sodium oleate are added to the secondary grinding chambers 3 in sequence to finally form a magnetic fluid. Then, the baffle plate 5 is pulled out to open the communication channel between the secondary grinding chambers 3 and the collection chamber 4, so that the magnetic fluid falls and is collected in the collection chamber 4.

[0033] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A magnetohydrodynamic (MHD) preparation apparatus, characterized in that, The equipment includes a grinding box (1), which has a primary grinding chamber (2) inside. The bottom of the primary grinding chamber (2) has several secondary grinding chambers (3). The grinding box (1) is equipped with a grinding mechanism that cooperates with the secondary grinding chambers (3) and the primary grinding chamber (2). The bottom of the grinding box (1) has a collection chamber (4). The top of the collection chamber (4) is connected to the bottom of several secondary grinding chambers (3). A baffle plate (5) is inserted into the top of the collection chamber (4). The top of the baffle plate (5) is sealed together with the bottom opening of the secondary grinding chamber (3). The outer surface of the baffle plate (5) is connected and fixed to the grinding box (1) by bolts.

2. The magnetohydrodynamic preparation apparatus according to claim 1, characterized in that, The grinding mechanism includes a primary grinding assembly and a secondary grinding assembly. The primary grinding assembly includes two sets of rotating shafts (6) rotatably connected to the top of the primary grinding chamber (2). A grinding roller (7) is installed on the outer surface of one end of the rotating shaft (6) inside the primary grinding chamber (2). A gear (8) is installed on one end of the rotating shaft (6) that extends through to the outside of the grinding box (1). Several gears (8) on the same side mesh with each other. A pulley (9) is installed on the rotating shaft (6) at the end and outside the gear (8).

3. The magnetohydrodynamic preparation apparatus according to claim 2, characterized in that, The secondary grinding assembly includes a motor shaft (11) rotatably connected to the bottom of the primary grinding chamber (2) and a motor (14) installed on the outside of the grinding box (1). Several grinding wheels (12) are installed on the outer surface of one end of the motor shaft (11) inside the primary grinding chamber (2). The grinding wheels (12) cooperate with the secondary grinding chamber (3). The end of the motor shaft (11) extends through to the outside of the grinding box (1) and connects to the output end of the motor (14). A second pulley (13) is installed on the outer surface of one end of the motor shaft (11) outside the grinding box (1). The second pulley (13) and the first pulley (9) are connected by a transmission belt (10).

4. The magnetohydrodynamic preparation apparatus according to claim 3, characterized in that, The secondary grinding chamber (3) has a trapezoidal structure that is wider at the top and narrower at the bottom, and the grinding surface of the grinding wheel (12) is adapted to the bottom of the secondary grinding chamber (3).

5. The magnetohydrodynamic preparation apparatus according to claim 4, characterized in that, The grinding box (1) is equipped with a mounting base (15) on its side, and the motor (14) is mounted on the mounting base (15).

6. The magnetohydrodynamic preparation apparatus according to claim 5, characterized in that, A conical support seat is installed at the bottom of the primary grinding chamber (2) and between the two secondary grinding chambers (3), and the motor shaft (11) is rotatably connected to the conical support seat.

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