Aluminum oxide ceramic powder preparation device

Abstract

The utility model discloses an alumina ceramic powder preparation device, which relates to the technical field of powder processing, and comprises a uniform mixing treatment pipe and a cooling treatment pipe, the uniform mixing treatment pipe is communicated with the cooling treatment pipe through a connecting pipe, and one end of the uniform mixing treatment pipe far away from the connecting pipe is provided with a feed port. Compared with an existing passive turbulent flow mode, an active turbulent flow mode is adopted, so that the turbulent flow effect is better, meanwhile, a surface modifier can be more uniformly dispersed, and the surface modifier can be uniformly dispersed, so that the surface modifier can be uniformly dispersed, and the service life of the surface modifier is prolonged. The surface modifier is sprayed out, so that the surface modifier is more uniformly contacted with the aluminum oxide ceramic powder after being sprayed out, the time and the movement stroke required by surface treatment can be shortened, a preset treatment effect can be obtained in a short single-stage pipeline, the number of mixing pipelines in equipment can be reduced, and the equipment cost is saved while the treatment effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of powder processing, in particular to a device for preparing alumina ceramic powder. Background Art

[0002] During the preparation process, alumina ceramic powders require surface modification with functional materials to achieve better functionality. This process typically involves uniformly mixing the surface modifier with the inorganic powder (alumina ceramic powder) and simultaneously heating it. After modification, the mixture is cooled and bagged, typically using a continuous microchannel mixer for continuous processing.

[0003] In the existing technology, microchannel mixers mostly use a deflector in conjunction with a nozzle to spray a surface modifier into a pipe that transports alumina ceramics, so that the surface modifier and the alumina ceramic powder are evenly mixed. However, the surface modifier has a poor short-distance mixing effect with the alumina ceramic powder after being sprayed, and multi-stage pipes are required for continuous turbulence to ensure that the surface modifier and the alumina ceramic powder are evenly mixed. As a result, the existing equipment is large in size and the equipment cost is high. Therefore, an alumina ceramic powder preparation device is needed. Utility Model Content

[0004] The purpose of this application is to provide an alumina ceramic powder preparation device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present application provides the following technical solutions: an alumina ceramic powder preparation device, comprising a mixing treatment tube and a cooling treatment tube, the mixing treatment tube and the cooling treatment tube being connected via a connecting tube, a feed port being provided at one end of the mixing treatment tube away from the connecting tube, and a discharge port being provided at one end of the cooling treatment tube away from the connecting tube;

[0006] An intermediate column is fixed in the middle of the mixing process tube and the cooling process tube. A guide swirl is fixed around the outside of the two intermediate columns. The outer side of the guide swirl in the mixing process tube is fixed to the inner wall of the mixing process tube, and the outer side of the guide swirl in the cooling process tube is fixed to the inner wall of the cooling process tube.

[0007] A rotating spoiler is fixed on one side of the two middle columns, and the spoiler is located at the material-facing end of the guide rotary plate;

[0008] A surface modifier delivery pipe is fixed on one side of the mixing treatment pipe. A nozzle extending into the mixing treatment pipe is fixedly connected to the surface modifier delivery pipe. The nozzle corresponds to the position of the spoiler in the mixing treatment pipe.

[0009] A cold air delivery pipe is fixed on one side of the cooling treatment pipe. The cold air delivery pipe is also fixedly connected to a nozzle extending into the mixing treatment pipe. The nozzle corresponds to the position of the spoiler in the cooling treatment pipe.

[0010] As a further supplement to this solution, the spoiler includes a disturbance wheel, which includes a shaft column and a blade group. The shaft column is rotatably connected to the side wall of the intermediate column, and the blade group is rotatably sleeved on the shaft column.

[0011] As a further supplement to this solution, the blades of the impeller group are twisted plate-shaped blades, and the middle line of the blades of the impeller group is arranged parallel to the axis of the shaft column;

[0012] The axes of the nozzles on the surface modifier delivery pipe and the cold air delivery pipe are perpendicular to each other on the horizontal plane, and the nozzles are located on the upper part of the blade group.

[0013] As a further supplement to this solution, the guide vortex in the mixing treatment tube extends spirally upward, and the guide vortex in the cooling treatment tube extends spirally downward. The two guide vortex plates in the mixing treatment tube and the cooling treatment tube are both inclined, and the inclination directions of the two guide vortex plates are opposite.

[0014] As a further supplement to this solution, a spoiler is also fixed on the guide vortex plate in the mixing treatment tube, and a plurality of spoilers are provided, and the plurality of spoilers are respectively fixed on the opposite side surfaces of the guide vortex plate;

[0015] The spoiler is tilted and inclined toward the material flow direction. The end of the spoiler away from the guide vortex plate forms an inwardly curved turbulent end plate, which is opposite to the material movement direction.

[0016] As a further supplement to this solution, a cavity is provided in the middle column of the mixing treatment tube;

[0017] A tubular electric heater is also installed on one side of the mixing processing tube. The air outlet of the tubular electric heater is set at the upper end, and the air outlet of the tubular electric heater is fixed and connected to the upper end of the intermediate column in the mixing processing tube through a pipe. The air inlet of the tubular electric heater is set at the lower end, and the air inlet of the tubular electric heater is fixed and connected to the lower end of the intermediate column in the mixing processing tube through a pipe.

[0018] In summary, the technical effects and advantages of the utility model are:

[0019] 1. In the utility model, alumina ceramic powder is transported from the feed port to the mixing treatment tube through an external pump body, and at the same time, a surface modifier is transported into the mixing treatment tube through a surface modifier delivery tube. The surface modifier is sprayed out through a nozzle and mixed with the moving alumina ceramic powder. During this process, the sprayed surface modifier drives the spoiler to rotate. When the spoiler rotates, it disturbs the alumina ceramic powder passing through the feed end of the guide rotary plate and evenly distributes the surface modifier, so that the surface modifier and the alumina ceramic powder are fully mixed, so that the alumina ceramic powder can be quickly mixed with the surface modifier to complete the modification;

[0020] Compared with the existing passive turbulence, the active turbulence method has a better turbulence effect and can more evenly distribute the surface modifier, so that the surface modifier can contact the alumina ceramic powder more evenly after being sprayed, thereby shortening the time and movement stroke required for surface treatment, and being able to obtain the predetermined treatment effect in a shorter single-stage pipeline, thereby reducing the number of mixing pipelines in the equipment, saving equipment costs while ensuring the treatment effect.

[0021] 2. In the present invention, by setting the guide vortex in the mixing treatment tube and the guide vortex in the cooling treatment tube in opposite directions, the material can flow smoothly when passing through the mixing treatment tube and the cooling treatment tube, avoiding major interference with the overall material flow. While ensuring the mixing and cooling effects, the flow speed of the material is guaranteed, so that the improved alumina ceramic powder preparation device can process more alumina ceramic powder in the same time, further improving its processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 Schematic diagram of the three-dimensional structure in this embodiment;

[0024] Figure 2 Schematic diagram of the cross-sectional structure in this embodiment;

[0025] Figure 3 Schematic diagram of the side view of the guide vortex plate and disturbance wheel in this embodiment.

[0026] In the figure: 1. Mixing treatment pipe; 11. Feed port; 2. Cooling treatment pipe; 21. Discharge port; 3. Connecting pipe; 4. Tubular electric heater; 5. Surface modifier delivery pipe; 6. Cold air delivery pipe; 7. Intermediate column; 8. Guide vortex plate; 81. Spoiler; 811. Turbulence end plate; 9. Disturbing wheel; 91. Shaft column; 92. Blade group. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example: Reference Figure 1-Figure 3 The device for preparing alumina ceramic powder shown includes a mixing tube 1 and a cooling tube 2. The mixing tube 1 and the cooling tube 2 are connected by a connecting tube 3. The mixing tube 1 is provided with a feed port 11 at one end away from the connecting tube 3, and the cooling tube 2 is provided with a discharge port 21 at one end away from the connecting tube 3.

[0029] An intermediate column 7 is fixed in the middle of the mixing process tube 1 and the cooling process tube 2. A guide swirl plate 8 is fixed around the outside of the two intermediate columns 7. The outer side of the guide swirl plate 8 in the mixing process tube 1 is fixed to the inner wall of the mixing process tube 1, and the outer side of the guide swirl plate 8 in the cooling process tube 2 is fixed to the inner wall of the cooling process tube 2.

[0030] A rotating spoiler is fixed on one side of each of the two intermediate cylinders 7, and the spoiler is located at the material-facing end of the guide rotary plate 8;

[0031] A surface modifier delivery pipe 5 is fixed to one side of the mixing treatment pipe 1. A nozzle extending into the mixing treatment pipe 1 is fixedly connected to the surface modifier delivery pipe 5. The nozzle corresponds to the position of the spoiler in the mixing treatment pipe 1.

[0032] A cold air delivery pipe 6 is fixed to one side of the cooling treatment pipe 2 , and a nozzle extending into the mixing treatment pipe 1 is also fixed on the cold air delivery pipe 6 , and the nozzle corresponds to the position of the spoiler in the cooling treatment pipe 2 .

[0033] Based on the above structure, the alumina ceramic powder is transported from the feed port 11 to the mixing treatment tube 1 through the external pump body, and at the same time, the surface modifier is transported to the mixing treatment tube 1 through the surface modifier delivery pipe 5, and the surface modifier is sprayed out through the nozzle and mixed with the moving alumina ceramic powder. In this process, the sprayed surface modifier drives the spoiler to rotate. When the spoiler rotates, the alumina ceramic powder passing through the material-facing end of the guide rotary plate 8 (referring to the end where the material enters the guide rotary plate 8) is disturbed, and the surface modifier is evenly distributed, so that the surface modifier and the alumina ceramic powder are fully mixed, so that the alumina ceramic powder can be quickly mixed with the surface modifier to complete the modification;

[0034] The active flow disturbance method has a better effect than the existing passive flow disturbance method. At the same time, it can more evenly distribute the surface modifier, so that the surface modifier contacts the alumina ceramic powder more evenly after being sprayed, thereby shortening the time and movement stroke required for surface treatment. The predetermined treatment effect can be achieved in a shorter single-stage pipeline, thereby reducing the number of mixing pipelines in the equipment, saving equipment costs while ensuring the treatment effect.

[0035] In addition, the processing efficiency is improved, and the surface treatment effect of the treated alumina ceramic powder is more uniform, thereby improving the quality of the finished product of the alumina ceramic powder.

[0036] Furthermore, the spoiler includes a disturbance wheel 9, which includes a shaft column 91 and a blade group 92. The shaft column 91 is rotatably connected to the side wall of the intermediate column 7, and the blade group 92 is rotatably sleeved on the shaft column 91.

[0037] The blades of the impeller assembly 92 are twisted plate-shaped blades, and the middle line of the blades of the impeller assembly 92 is arranged parallel to the axis of the shaft column 91;

[0038] The axes of the shafts 91 of the nozzles on the surface modifier delivery pipe 5 and the cold air delivery pipe 6 are also perpendicular to each other in the horizontal plane, and the nozzles are located on the upper part of the blade group 92.

[0039] Through the setting of the disturbance wheel 9, when the nozzle sprays out the surface modifier (or cold air), the surface modifier pushes the impeller group 92 to rotate, so that the impeller group 92 disturbs the passing alumina ceramic powder. At the same time, since the blades of the impeller group 92 are set as twisted plate blades, the surface modifier can be spread more evenly and widely after contacting the impeller group 92, thereby achieving the effect of quickly mixing the surface modifier and the alumina ceramic powder.

[0040] Furthermore, the guide vortex plate 8 in the mixing treatment tube 1 extends spirally upward, and the guide vortex plate 8 in the cooling treatment tube 2 extends spirally downward. The surfaces of the two guide vortex plates 8 in the mixing treatment tube 1 and the cooling treatment tube 2 are both inclined, and the inclination directions of the two guide vortex plates 8 are opposite.

[0041] By setting the guide vortex plate 8 in the mixing treatment tube 1 and the guide vortex plate 8 in the cooling treatment tube 2 in opposite directions, the material can flow smoothly when passing through the mixing treatment tube 1 and the cooling treatment tube 2, avoiding major interference with the overall material flow. While ensuring the mixing and cooling effects, the flow speed of the material is guaranteed, so that the improved alumina ceramic powder preparation device can process more alumina ceramic powder in the same time, further improving its processing efficiency.

[0042] Furthermore, a spoiler 81 is fixed on the guide vortex plate 8 in the mixing treatment tube 1. A plurality of spoilers 81 are provided, and the plurality of spoilers 81 are respectively fixed on the opposite side surfaces of the guide vortex plate 8.

[0043] The spoiler 81 is tilted and inclined toward the material flow direction. The end of the spoiler 81 away from the surface of the guide vortex plate 8 forms an inwardly curved turbulent end plate 811, which is opposite to the material movement direction.

[0044] By setting the spoiler 81, the alumina ceramic powder flowing through can be forced to roll, thereby causing the positions of the alumina ceramic powder inside and outside to change, so that it can be mixed with the surface modifier more evenly, completing the efficient mixing process within a short distance. At the same time, the turbulent end plate 811 can cause the flowing powder to roll twice, that is, reverse rolling occurs at the turbulent end plate 811, and forward rolling occurs after passing the turbulent end plate 811, thereby making its turbulent mixing effect better.

[0045] Furthermore, a cavity is provided in the middle column 7 in the mixing treatment tube 1;

[0046] A tubular electric heater 4 is also installed on one side of the mixing processing tube 1. The air outlet of the tubular electric heater 4 is set at the upper end, and the air outlet of the tubular electric heater 4 is fixed and connected to the upper end of the intermediate column 7 in the mixing processing tube 1 through a pipe. The air inlet of the tubular electric heater 4 is set at the lower end, and the air inlet of the tubular electric heater 4 is fixed and connected to the lower end of the intermediate column 7 in the mixing processing tube 1 through a pipe.

[0047] By introducing the hot air generated by the tubular electric heater 4 into the intermediate column 7, the powder flowing in the mixing treatment tube 1 can be heated more evenly. Compared with directly blowing the powder, on the one hand, it avoids interfering with the flow of the powder, and on the other hand, it can achieve faster circulation flow, making the temperature adjustment response faster, meeting faster alumina ceramic powder surface treatment operations.

[0048] The working principle of the utility model is as follows: in daily use, the alumina ceramic powder is transported from the feed port 11 to the mixing treatment tube 1 through the external pump body, and at the same time, the surface modifier is transported to the mixing treatment tube 1 through the surface modifier delivery pipe 5, and the surface modifier is sprayed out through the nozzle and mixed with the moving alumina ceramic powder. In this process, the sprayed surface modifier drives the impeller group 92 to rotate, so that the impeller group 92 disturbs the passing alumina ceramic powder. At the same time, since the blades of the impeller group 92 are set as twisted plate blades , and can also make the surface modifier spread more evenly and widely after contacting the impeller group 92, so that the surface modifier and the alumina ceramic powder are fully mixed, so that the alumina ceramic powder can be quickly mixed with the surface modifier. The tubular electric heater 4 simultaneously introduces hot air into the intermediate column 7 to heat the alumina ceramic powder fluid mixed with the surface modifier to complete the modification; then the powder enters the cooling treatment tube 2 through the connecting pipe 3 for cooling, and the cooled alumina ceramic powder product is discharged from the discharge port 21 and collected by the bag collector.

[0049] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An alumina ceramic powder preparation device, comprising a mixing treatment tube (1) and a cooling treatment tube (2), wherein the mixing treatment tube (1) and the cooling treatment tube (2) are connected via a connecting tube (3), a feeding port (11) is provided at one end of the mixing treatment tube (1) away from the connecting tube (3), and a discharging port (21) is provided at one end of the cooling treatment tube (2) away from the connecting tube (3), characterized in that: An intermediate column (7) is fixed in the middle of each of the mixing treatment tube (1) and the cooling treatment tube (2), and a guide swirl plate (8) is fixedly provided around the outside of each of the two intermediate columns (7). The outside of the guide swirl plate (8) in the mixing treatment tube (1) is fixed to the inner wall of the mixing treatment tube (1), and the outside of the guide swirl plate (8) in the cooling treatment tube (2) is fixed to the inner side of the cooling treatment tube (2); A rotating spoiler is fixed on one side of each of the two intermediate columns (7), and the spoiler is located at the material-facing end of the guide rotary plate (8); A surface modifier delivery pipe (5) is fixed to one side of the mixing treatment pipe (1), and a nozzle extending into the mixing treatment pipe (1) is fixedly connected to the surface modifier delivery pipe (5), and the nozzle corresponds to the position of the spoiler in the mixing treatment pipe (1); A cold air delivery pipe (6) is fixed to one side of the cooling treatment pipe (2), and a nozzle extending into the mixing treatment pipe (1) is also fixedly connected to the cold air delivery pipe (6), and the nozzle corresponds to the position of the spoiler in the cooling treatment pipe (2).

2. The alumina ceramic powder preparation device according to claim 1, characterized in that: The spoiler comprises a disturbance wheel (9), and the disturbance wheel (9) comprises a shaft column (91) and a blade group (92). The shaft column (91) is rotatably connected to the side wall of the intermediate column (7), and the blade group (92) is rotatably sleeved on the shaft column (91).

3. The alumina ceramic powder preparation device according to claim 2, characterized in that: The blades of the wheel blade group (92) are twisted plate-shaped blades, and the middle line of the blades of the wheel blade group (92) is arranged parallel to the axis of the shaft column (91); The axes of the nozzles on the surface modifier delivery pipe (5) and the cold air delivery pipe (6) are perpendicular to each other on the horizontal plane, and the nozzles are located above the blade group (92).

4. The alumina ceramic powder preparation device according to claim 1, characterized in that: The guide vortex plate (8) in the mixing treatment pipe (1) extends spirally upward, and the guide vortex plate (8) in the cooling treatment pipe (2) extends spirally downward. The two guide vortex plates (8) in the mixing treatment pipe (1) and the cooling treatment pipe (2) are both inclined, and the inclination directions of the two guide vortex plates (8) are opposite.

5. The device for preparing alumina ceramic powder according to claim 4, characterized in that: A spoiler (81) is also fixed on the guide swirl plate (8) in the mixing treatment tube (1), and a plurality of spoilers (81) are provided. The plurality of spoilers (81) are respectively fixed on the opposite side surfaces of the guide swirl plate (8); The spoiler (81) is tilted and inclined toward the material flow direction, and the end of the spoiler (81) away from the surface of the guide vortex plate (8) forms an inwardly curved turbulent end plate (811), and the turbulent end plate (811) is opposite to the direction of material movement.

6. The device for preparing alumina ceramic powder according to claim 1, characterized in that: A cavity is provided in the middle column (7) in the mixing treatment tube (1); A tubular electric heater (4) is also installed on one side of the mixing treatment tube (1), and an air outlet of the tubular electric heater (4) is arranged at the upper end, and the air outlet of the tubular electric heater (4) is fixed and communicated with the upper end of the intermediate column (7) in the mixing treatment tube (1) through a pipeline, and an air inlet of the tubular electric heater (4) is arranged at the lower end, and the air inlet of the tubular electric heater (4) is fixed and communicated with the lower end of the intermediate column (7) in the mixing treatment tube (1) through a pipeline.

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