ITO powder mixing equipment

Abstract

The utility model relates to the technical field of ITO (Indium Tin Oxide) powder mixing, in particular to ITO powder mixing equipment which comprises a dispersing box and a mixing box, the dispersing box and the mixing box are communicated with each other through a connecting pipe, the bottom of the mixing box is fixedly connected with supporting legs, the top of the dispersing box is provided with a feeding hopper, a dispersing part is arranged in the dispersing box, and the feeding hopper is provided with a feeding hole. The bottom of the dispersing box is conical, a gap is formed between the dispersing part and the conical inner wall of the bottom of the dispersing box, when the dispersing part rotates, powder cakes falling into the gap can be extruded and ground to form powder particles, and a stirring part is arranged in the mixing box. According to the utility model, through the matching of related structures, powder blocks falling into the interval can be extruded and ground to form powder particles, so that the I TO powder with different specifications can be fully and uniformly mixed under the stirring of the stirring part, and non-uniform mixing caused by the existence of the blocks in the powder is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ITO powder mixing, in particular to an ITO powder mixing device. Background Art

[0002] ITO powder is a mixture composed of indium oxide (In2O3) and tin oxide (SnO2), and is usually used to prepare conductive films. It has high transparency and good electrical conductivity, and is often used as a transparent conductive material, widely used in liquid crystal displays, solar cells, touch screens and other fields. For the manufacturing and shaping technology using ITO powder, it is usually necessary to perform grading on the ITO powder. Grading refers to the process of mixing particles of different particle sizes in a certain proportion so that the particle size distribution of each particle in the mixture meets certain requirements. Through reasonable grading design, the material can have better compactness, stability and strength to meet the manufacturing requirements. Therefore, a mixing device is needed during the grading process of the powder.

[0003] For example, Chinese Patent Publication No. CN208911959 discloses an ITO target material mixing device. Although this mixing device can well stir and mix the target material by using the common rotation of the stirring device and the cylinder body, this mixing device cannot perform dispersion treatment on the agglomerates in the ITO powder before mixing the target material. Moreover, the ITO powder is a mixture of metal particles, and the formed agglomerates have a high hardness. By simply mixing and stirring, even if some larger powder agglomerates can be broken up, multiple small powder agglomerates will be formed after breaking up, resulting in the inability to well mix particles of different particle sizes evenly together during the mixing process, affecting the uniformity of grading. Summary of the Utility Model[[ID=e14]]

[0004] In view of this, the purpose of the present utility model is to provide an ITO powder mixing device to solve the problem that when the existing mixing device mixes powders of different specifications, it cannot first disperse the agglomerates in the powder, resulting in insufficient and uneven mixing of the agglomerated powder during mixing.

[0005] Based on the above purpose, the present utility model provides an ITO powder mixing device, including a dispersion tank and a mixing tank, and the dispersion tank and the mixing tank are connected and communicated with each other through a connecting pipe. A support leg is fixedly connected to the bottom of the mixing tank. A feeding hopper is arranged at the top of the dispersion tank. A dispersion part is arranged in the dispersion tank. The bottom of the dispersion tank is conical, and there is a gap between the dispersion part and the conical inner wall at the bottom of the dispersion tank. When the dispersion part rotates, it can extrude and disperse the powder agglomerates falling into the gap to form powder particles.

[0006] A stirring part is arranged in the mixing box. The stirring part is used to stir and mix powder particles of different specifications that fall from the dispersion box into the mixing box. The top of the stirring part is connected to the bottom end of the dispersion part. A driving machine for driving the stirring part to rotate is installed at the bottom of the mixing box, and a discharge port is formed on the mixing box.

[0007] Preferably, the stirring part includes a rotating shaft fixedly connected to the output end of the driving machine. Stirring blades are fixedly connected to the rotating shaft, and a lower dispersion cone is fixedly connected to the circumferential surface of the rotating shaft near the top end.

[0008] Preferably, a plurality of through grooves for powder particles to fall through are formed in the lower dispersion cone.

[0009] Preferably, the dispersion part includes an extrusion cone fixedly connected to the top end of the rotating shaft, and an upper dispersion cone is fixedly connected to the top of the extrusion cone.

[0010] Preferably, protrusions are fixedly connected to the circumferential surface of the extrusion cone.

[0011] Preferably, the gap formed between the extrusion cone and the conical inner wall of the dispersion box gradually decreases from top to bottom.

[0012] The beneficial effects of the present invention: An ITO powder mixing device provided by the present invention has a conical bottom for the dispersion box and a dispersion part arranged in the dispersion box, so that there is a gap between the dispersion part and the conical inner wall at the bottom of the dispersion box. When different specifications of powders need to be mixed, the driving machine can drive the dispersion part and the stirring part to rotate. When the dispersion part rotates, it can extrude and disperse powder agglomerates of different volumes that fall into the gap to form powder particles, which facilitates the full and uniform mixing of different specifications of ITO powders under the stirring of the stirring part, avoiding uneven mixing caused by the presence of agglomerates in the powder. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of an embodiment of the present invention;

[0015] Figure 2 It is a cross-sectional view of an embodiment of the present invention;

[0016] Figure 3This is a schematic structural diagram of the dispersion part and the stirring part of the embodiment of the present utility model.

[0017] In the figure: 1, dispersion tank; 2, mixing tank; 3, connecting pipe; 4, dispersion part; 41, extrusion cone; 42, upper dispersion cone; 43, protrusion; 5, stirring part; 51, rotating shaft; 52, stirring blade; 53, lower dispersion cone; 54, through groove; 6, driving machine; 7, feeding hopper. Specific embodiments

[0018] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the following further details the present utility model in combination with specific embodiments and with reference to the accompanying drawings.

[0019] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present utility model should be the general meanings understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar words used in the present utility model do not represent any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0020] As Figure 1 , Figure 2 , Figure 3 shown, an ITO powder mixing device includes a dispersion tank 1 and a mixing tank 2, and the dispersion tank 1 and the mixing tank 2 are communicated with each other through a connecting pipe 3. A support leg is fixedly connected to the bottom of the mixing tank 2. A feeding hopper 7 is arranged at the top of the dispersion tank 1. The bottom end of the feeding hopper 7 is fixedly connected with a feeding pipe, and the feeding pipe is fixedly connected to the top of the dispersion tank 1. A control valve is installed on the feeding pipe. A dispersion part 4 is arranged in the dispersion tank 1. The bottom of the dispersion tank 1 is conical, and there is a gap between the dispersion part 4 and the conical inner wall at the bottom of the dispersion tank 1. When the dispersion part 4 rotates, it can extrude and disperse the powder agglomerates falling into the gap to form powder particles;

[0021] A stirring part 5 is arranged in the mixing tank 2. The stirring part 5 is used for stirring and mixing powder particles of different specifications falling from the dispersion tank 1 into the mixing tank 2. The top of the stirring part 5 is connected to the bottom end of the dispersion part 4. A driving machine 6 for driving the stirring part 5 to rotate is installed at the bottom of the mixing tank 2. An outlet is opened on the mixing tank 2.

[0022] When it is necessary to carry out grading and mixing of various specifications of ITO powder, first put various specifications of ITO powder into the feeding hopper 7, open the control valve, so that the ITO powder can flow into the dispersion box 1, and the driving machine 6 drives the stirring part 5 and the dispersion part 4 to rotate. When the dispersion part 4 rotates, it can extrude and disperse the powder agglomerates falling into the gap to form powder particles. The powder particles after extrusion and dispersion enter the mixing box 2 through the connecting pipe 3. Under the stirring action of the stirring part 5, different specifications of ITO powder particles can be well stirred and mixed, improving the mixing uniformity.

[0023] In a preferred embodiment of the present invention, the stirring part 5 includes a rotating shaft 51 fixedly connected to the output end of the driving machine 6. A stirring blade 52 is fixedly connected to the rotating shaft 51, and a lower dispersion cone 53 is fixedly connected to the circumferential surface of the rotating shaft 51 near the top.

[0024] The driving machine 6 drives the rotating shaft 51 and the lower dispersion cone 53 to rotate. The lower dispersion cone 53 extrudes and disperses the agglomerates in the powder, so that the powder particles will fall into the mixing box 2 through the connecting pipe 3. And because the lower dispersion cone 53 is directly below the connecting pipe 3, the falling powder particles will directly fall on the lower dispersion cone 53. The lower dispersion cone 53 rotates, and under the action of centrifugal force, it can throw the falling powder particles to the surroundings. Subsequently, under the stirring of the stirring blade 52, the thrown powder particles can be stirred and mixed.

[0025] In another preferred embodiment of the present invention, a plurality of through grooves 54 for the powder particles to fall are formed on the lower dispersion cone 53. Through the arrangement of the through grooves 54, when the lower dispersion cone 53 rotates under the action of centrifugal force, part of the powder particles falling from the dispersion box 1 into the mixing box 2 will be thrown to the surroundings of the mixing box 2, and the other part will directly fall to the bottom of the dispersion box 1 through the through grooves 54, making the powder particles more dispersed in the mixing box 2. Subsequently, under the stirring of the stirring blade 52, different specifications of powder particles can be fully stirred and mixed evenly, avoiding the powder particles falling directly and piling up somewhere, resulting in insufficient and incomplete mixing.

[0026] In still another preferred embodiment of the present invention, the dispersion part 4 includes an extrusion cone 41 fixedly connected to the top of the rotating shaft 51, and an upper dispersion cone 42 is fixedly connected to the top of the extrusion cone 41.

[0027] When the rotating shaft 51 drives the upper dispersion cone 42 to rotate, under the action of centrifugal force, it can throw the powder particles falling from the feeding hopper 7 to the surroundings of the dispersion box 1, facilitating the powder particles to fall into the gap formed between the extrusion cone 41 and the dispersion box 1, and facilitating the extrusion and dispersion of the agglomerates in the powder under the rotation and extrusion of the extrusion cone 41, improving the uniformity of subsequent mixing.

[0028] It should be noted that a protrusion 43 is fixedly connected to the circumferential surface of the extrusion cone 41. The protrusion 43 increases the roughness of the surface of the extrusion cone 41, making the effect of grinding and dispersing the agglomerates in the powder better.

[0029] It should be noted that the gap formed between the extrusion cone 41 and the conical inner wall of the dispersion box 1 gradually decreases from top to bottom, so that during the rotation of the extrusion cone 41, the agglomerates of different sizes can be gradually ground and dispersed, and the agglomerates in the powder can be more comprehensively and thoroughly ground and dispersed.

[0030] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0031] The embodiments of the present invention are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An ITO powder mixing device, comprising a dispersion tank (1) and a mixing tank (2), and the dispersion tank (1) and the mixing tank (2) are communicated with each other through a connecting pipe (3). A support leg is fixedly connected to the bottom of the mixing tank (2), and it is characterized in that, A feeding hopper (7) is arranged at the top of the dispersion box (1). A dispersion part (4) is arranged inside the dispersion box (1). The bottom of the dispersion box (1) is conical, and there is a gap between the dispersion part (4) and the conical inner wall at the bottom of the dispersion box (1). When the dispersion part (4) rotates, it can extrude and disperse the powder agglomerates falling into the gap to form powder particles. A stirring part (5) is arranged inside the mixing box (2). The stirring part (5) is used for stirring and mixing powder particles of different specifications that fall from the dispersion box (1) into the mixing box (2). The top of the stirring part (5) is connected to the bottom end of the dispersion part (4). A driving machine (6) for driving the stirring part (5) to rotate is installed at the bottom of the mixing box (2). An outlet is provided on the mixing box (2).

2. The ITO powder mixing device according to claim 1, characterized in that, The stirring part (5) includes a rotating shaft (51) fixedly connected to the output end of the driving machine (6). Stirring blades (52) are fixedly connected to the rotating shaft (51). A lower dispersion cone (53) is fixedly connected to the circumferential surface of the rotating shaft (51) near the top.

3. An ITO powder mixing device according to claim 2, characterized in that, A plurality of through grooves (54) for powder particles to fall through are formed in the lower dispersion cone (53).

4. An ITO powder mixing device according to claim 2, characterized in that, The dispersion part (4) includes an extrusion cone (41) fixedly connected to the top end of the rotating shaft (51). An upper dispersion cone (42) is fixedly connected to the top of the extrusion cone (41).

5. The ITO powder mixing device according to claim 4, characterized in that, Protrusions (43) are fixedly connected to the circumferential surface of the extrusion cone (41).

6. The ITO powder mixing device according to claim 4, characterized in that, The gap formed between the extrusion cone (41) and the conical inner wall of the dispersion box (1) gradually decreases from top to bottom.

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