High-thermal-conductivity aluminum oxide purification device

By introducing a cleaning mechanism and a stirring component into the alumina purification unit, the problem of floating matter reflux was solved, achieving efficient separation and stirring of alumina and improving purification purity and efficiency.

CN224162982UActive Publication Date: 2026-04-24HENAN YUFA ABRASIVE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN YUFA ABRASIVE CO LTD
Filing Date
2025-05-09
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In existing alumina purification equipment, during the cleaning process, floating matter may flow back when the receiving tray moves up and down, resulting in incomplete filtration of impurities and affecting the purification effect.

Method used

A high thermal conductivity alumina purification device was designed, which employs a cleaning mechanism and a stirring assembly. The top plate and cleaning frame are driven by a hydraulic cylinder to move inside the crucible. Combined with the rotation of the bidirectional lead screw and threaded seat, the floating impurities are effectively separated, and the purification is accelerated by stirring the stirring blades.

Benefits of technology

It significantly improves the purity of alumina, ensures effective separation of impurities from the alumina melt, avoids crystal accumulation, and enhances purification efficiency.

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Abstract

The utility model discloses a high thermal conductivity aluminum oxide purification device, which relates to the technical field of aluminum oxide purification and comprises a crucible, a heating seat is fixedly arranged outside the lower end of the crucible, a top cover is movably mounted at the top of the crucible, a cleaning mechanism is mounted at the lower end of the top cover, and a stirring component is arranged at the lower end of an inner cavity of the crucible. A first motor is fixedly arranged on one side of the left end of the crucible. After the top plate is located on the crucible, the cleaning frames are located on the two sides of the interior of the crucible, the threaded bases can be driven to rotate through the rotating two-way lead screw, the threaded bases are made to be close to each other, then the vertical rods and the cleaning frames are driven to move synchronously, and therefore the cleaning frames on the two sides push and remove impurities floating on the liquid level of aluminum oxide; after the two groups of cleaning frames are close and closed, light impurities in the aluminum oxide can be completely separated, so that the purity of the purified aluminum oxide can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of alumina purification technology, specifically to a high thermal conductivity alumina purification device. Background Technology

[0002] Alumina is an inorganic substance with the chemical formula Al2O3. It is a high-hardness compound with a melting point of 2054℃ and a boiling point of 2980℃. It is an ionic crystal that can ionize at high temperatures and is often used in the manufacture of refractory materials.

[0003] Alumina is mainly used in biochemical engineering for the extraction, screening, separation and decolorization of organic compounds. Specifically, it is used for the separation, purification and decolorization of effective components of traditional Chinese medicine and antibiotics. In the pre-melting sintering process of high-purity alumina, the crucible is a very important piece of equipment, which is directly related to the success or failure of the pre-melting sintering process and the purity of the sintered product.

[0004] Chinese patent CN213569557U discloses an alumina purification reaction device. The device describes a scheme in which a screw rotates on a cover, causing a pressing block to rotate along with the screw thread, which in turn moves a receiving plate up and down inside a crucible to scoop out floating matter. The screw thread rotation causes the receiving plate to rise until it contacts the top rod under the fixed block, causing impurities in the receiving plate to be poured into a filter box and filtered through a filter screen. This process is repeated multiple times to improve the purification effect of alumina.

[0005] However, in the process of using the above solution, the receiving plate needs to move up and down inside the crucible to scoop out the floating objects. But when the receiving plate moves upward, the floating objects may continue to drift back into the crucible from both sides of the receiving plate, which results in the impurities not being filtered cleanly and reduces the effectiveness of the device. Utility Model Content

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A high thermal conductivity alumina purification device includes a crucible, a heating seat fixedly provided on the lower exterior of the crucible, a top cover movably installed on the top of the crucible, a cleaning mechanism installed on the lower end of the top cover, a stirring assembly provided on the lower end of the inner cavity of the crucible, and a motor fixedly provided on one side of the left end of the crucible.

[0008] The cleaning mechanism includes a hydraulic cylinder. The lower end of the hydraulic cylinder is fixedly connected to the middle of the upper end of the top cover. A top plate is fixedly connected to the top of the output rod of the hydraulic cylinder. Sliding rods are symmetrically fixedly connected to the lower ends of both sides of the top plate. Sliding holes are symmetrically opened through both ends of the top cover. A horizontal plate is movably provided at the lower end of the top cover. A cleaning frame is provided below the horizontal plate. A second motor is fixedly provided on one side of the middle of the horizontal plate. A two-way lead screw is driven and installed at the output end of the second motor. Threaded seats are threaded on both sides of the two-way lead screw. Guide blocks are symmetrically fixedly installed on the front and rear sides of the threaded seats. A vertical rod is fixedly connected to the lower end of the threaded seats. Guide grooves are opened at both the front and rear ends of the horizontal plate.

[0009] Preferably, the outer side of the slide rod is slidably connected to the inner side of the slide hole, and the lower end of the slide rod is symmetrically fixed to both sides of the upper end of the cross plate.

[0010] Preferably, the guide block matches the guide groove and is slidably installed.

[0011] Preferably, the lower end of the vertical rod is fixedly connected to the upper end of the cleaning frame, the bottom of the cleaning frame is inclined, and the two sets of cleaning frames can form a closed space inside when they are close together.

[0012] Preferably, the stirring assembly includes two sets of rotating shafts, with both ends of the two sets of rotating shafts rotatably mounted to the lower sides of the crucible. A pulley one and a pulley two are rotatably mounted on the lower right side of the crucible, and a drive belt is rotatably sleeved on the outside of the pulley one and the pulley two.

[0013] Preferably, the two sets of rotating shafts are fixedly equipped with stirring blades on their exteriors, which facilitates the stirring of alumina and accelerates the purification efficiency of alumina.

[0014] Preferably, the bottom ends of the two sets of rotating shafts are respectively connected to the front ends of pulley one and pulley two for transmission.

[0015] Preferably, the output end of the motor is driven and mounted on the top of a set of rotating shafts, and the exterior of the cleaning frame matches the interior of the crucible and is movably mounted.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention provides a high thermal conductivity alumina purification device. Through a cleaning mechanism, a top plate is positioned on the crucible, causing cleaning frames to be located on both sides inside the crucible. A rotating bidirectional lead screw drives the threaded seats to rotate, bringing them closer together. This, in turn, causes the vertical rod and cleaning frames to move synchronously, allowing the cleaning frames on both sides to push and skim off floating impurities on the alumina surface. After the two sets of cleaning frames approach and close, the light impurities inside the alumina can be completely separated, thus improving the purity of the purified alumina. Simultaneously, a hydraulic cylinder can move the top plate up and down, allowing the top plate to move synchronously with the horizontal plate via a sliding rod. This adjusts the position of the cleaning frames within the crucible, ensuring they are positioned on the surface of the molten alumina raw material for easy separation of light impurities.

[0018] This invention provides a high thermal conductivity alumina purification device. Through the coordination of a stirring assembly, a rotating shaft, stirring blades, pulley one, pulley two, and a drive belt, a motor drives a set of rotating shafts to rotate. The rotating shafts, through the transmission effect of pulley one, pulley two, and the drive belt, drive another set of rotating shafts to rotate synchronously. The synchronous rotation of the two sets of rotating shafts drives the stirring blades to rotate, which facilitates uniform stirring of the alumina raw material in the crucible, thereby accelerating the purification effect of alumina and preventing alumina crystallization inside the crucible. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the high thermal conductivity alumina purification device of this utility model;

[0020] Figure 2 This is a side view of the high thermal conductivity alumina purification device of this utility model.

[0021] Figure 3 This is a schematic diagram of the cleaning mechanism of this utility model;

[0022] Figure 4 This is a structural schematic diagram showing the details of the cleaning mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the stirring assembly of this utility model.

[0024] In the diagram: 1. Crucible; 2. Heating base; 3. Top cover; 4. Cleaning mechanism; 5. Stirring assembly; 6. Motor 1; 41. Hydraulic cylinder; 42. Top plate; 43. Slide rod; 44. Slide hole; 45. Horizontal plate; 46. Cleaning frame; 47. Motor 2; 48. Double-acting lead screw; 49. Threaded seat; 410. Guide block; 411. Vertical rod; 412. Guide groove; 51. Rotating shaft; 52. Stirring blade; 53. Pulley 1; 54. Pulley 2; 55. Drive belt. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to embodiments:

[0026] like Figures 1-5 As shown, this utility model provides a high thermal conductivity alumina purification device, including a crucible 1, a heating seat 2 fixedly provided on the lower external side of the crucible 1, a top cover 3 movably installed on the top of the crucible 1, a cleaning mechanism 4 installed on the lower end of the top cover 3, a stirring assembly 5 provided on the lower end of the inner cavity of the crucible 1, and a motor 6 fixedly provided on one side of the left end of the crucible 1.

[0027] The output end of motor 6 is connected to the top drive of a set of rotating shafts 51, and the exterior of cleaning frame 46 matches the interior of crucible 1 and is movably mounted.

[0028] like Figures 3-4 As shown, the cleaning mechanism 4 includes a hydraulic cylinder 41. The lower end of the hydraulic cylinder 41 is fixedly connected to the middle of the upper end of the top cover 3. The top of the output rod of the hydraulic cylinder 41 is fixedly connected to a top plate 42. Slide rods 43 are symmetrically fixedly connected to the lower ends of both sides of the top plate 42. Slide holes 44 are symmetrically opened through both ends of the top cover 3. A horizontal plate 45 is movably provided at the lower end of the top cover 3. A cleaning frame 46 is provided below the horizontal plate 45. A second motor 47 is fixedly provided on one side of the middle of the horizontal plate 45. A two-way lead screw 48 is driven and installed at the output end of the second motor 47. Threaded seats 49 are threaded on both sides of the two-way lead screw 48. Guide blocks 410 are symmetrically fixedly installed on the front and rear sides of the threaded seats 49. A vertical rod 411 is fixedly connected to the lower end of the threaded seats 49. Guide grooves 412 are opened at both the front and rear ends of the horizontal plate 45.

[0029] The outer side of the slide rod 43 is slidably connected to the inner side of the slide hole 44, and the lower end of the slide rod 43 is symmetrically fixed to both sides of the upper end of the cross plate 45.

[0030] The guide block 410 matches the guide groove 412 and is slidably installed.

[0031] The lower end of the vertical rod 411 is fixedly connected to the upper end of the cleaning frame 46. The bottom of the cleaning frame 46 is sloping. When the two sets of cleaning frames 46 are close together, they can form a closed space inside.

[0032] In this scheme, the guide block 410 and the guide groove 412 are closely matched. When the threaded seat 49 moves, the guide block 410 slides along the guide groove 412, ensuring that the threaded seat 49 can only move along a predetermined straight trajectory. The cleaning frames 46 located on both sides inside the crucible 1 gradually move towards the center, so that they can push and skim off the impurities floating on the surface of the alumina liquid. During this process, the cleaning frames 46 are in full contact with the surface of the alumina liquid, gradually gathering the light impurities floating on the liquid surface. When the two sets of cleaning frames 46 are close together and finally closed, a relatively closed area is formed. This closed area can completely trap the light impurities inside the alumina, realizing the effective separation of impurities from the alumina melt. After such cleaning operation, the impurity content in the alumina is greatly reduced, thereby significantly improving the purity of the purified alumina.

[0033] like Figure 5 As shown, the stirring assembly 5 includes two sets of rotating shafts 51. The two ends of the two sets of rotating shafts 51 are rotatably installed on both sides of the lower end of the crucible 1. A pulley 1 53 and a pulley 2 54 are rotatably installed on the lower right side of the crucible 1, and a drive belt 55 is rotatably sleeved on the outside of the pulley 1 53 and the pulley 2 54.

[0034] Two sets of rotating shafts 51 are externally fixed with stirring blades 52, which facilitate the stirring of alumina and accelerate the purification efficiency of alumina.

[0035] The bottom ends of the two sets of rotating shafts 51 are respectively connected to the front ends of pulley 53 and pulley 54 for transmission.

[0036] In this scheme, two sets of rotating shafts 51 drive the stirring blades 52 to rotate, thereby enabling uniform stirring of alumina, thus accelerating the purification efficiency of alumina and preventing accumulation.

[0037] The working principle of this high thermal conductivity alumina purification device will be explained in detail below.

[0038] like Figures 1-5As shown, in use, the high thermal conductivity alumina purification device involves pouring alumina into crucible 1, then covering it with top cover 3, positioning the cleaning frame 46 on both sides inside crucible 1. The heating base 2 can then be activated to facilitate heating and purification of the alumina raw material. The motor can also be started, driving a set of rotating shafts 51 to rotate. These shafts 51, in turn, drive pulley 53 to rotate. Pulley 53, via drive belt 55, drives pulley 54 on the other side to rotate, causing pulley 54 to drive another set of rotating shafts 51 to rotate synchronously. The two sets of rotating shafts 51 then drive the stirring blades 52 to rotate, thus uniformly stirring the alumina and accelerating the purification efficiency, preventing accumulation. After the alumina raw material melts, the hydraulic cylinder 41 can be opened. The pressure cylinder 41 can drive the top plate 42 to move down, so that the top plate 42 drives the horizontal plate 45 to move synchronously through the slide rod 43, thereby making the cleaning frames 46 on both sides of the alumina liquid surface. Then, the second motor 47 is started, and the second motor 47 drives the bidirectional lead screw 48 to rotate. The bidirectional lead screw 48 can drive the threaded seats 49 on both sides to move closer to each other, so that the threaded seats 49 drive the cleaning frames 46 to move synchronously through the vertical rod 411. The cleaning frames 46 moving at a uniform speed can push the impurities floating on the alumina liquid surface and gather them towards the center of the crucible 1. After the two sets of cleaning frames 46 have moved closer, the impurities can be collected in the sealed space formed by the two cleaning frames 46, thereby separating the impurities and further improving the purity of the alumina raw material.

[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A high thermal conductivity alumina purification device, comprising a crucible (1), wherein a heating base (2) is fixedly provided on the lower exterior of the crucible (1), characterized in that: The top of the crucible (1) is movably fitted with a top cover (3), and a cleaning mechanism (4) is installed at the lower end of the top cover (3). A stirring assembly (5) is provided at the lower end of the inner cavity of the crucible (1), and a motor (6) is fixedly installed on one side of the left end of the crucible (1). The cleaning mechanism (4) includes a hydraulic cylinder (41), the lower end of which is fixedly connected to the middle of the upper end of the top cover (3). A top plate (42) is fixedly connected to the top of the output rod of the hydraulic cylinder (41). Slide rods (43) are symmetrically fixedly connected to the lower ends of both sides of the top plate (42). Slide holes (44) are symmetrically opened through both ends of the top cover (3). A horizontal plate (45) is movably provided at the lower end of the top cover (3). A cleaning frame is provided below the horizontal plate (45). 46) A second motor (47) is fixedly installed on one side of the middle part of the horizontal plate (45). A two-way lead screw (48) is installed at the output end of the second motor (47). Thread seats (49) are threaded on both sides of the two-way lead screw (48). Guide blocks (410) are symmetrically fixed on both the front and rear sides of the thread seats (49). A vertical rod (411) is fixedly connected to the lower end of the thread seats (49). Guide grooves (412) are opened at both the front and rear ends of the horizontal plate (45).

2. The alumina purification device with high thermal conductivity according to claim 1, characterized in that: The outside of the slide rod (43) is slidably connected to the inside of the slide hole (44), and the lower end of the slide rod (43) is symmetrically fixed to both sides of the upper end of the cross plate (45).

3. The alumina purification device with high thermal conductivity according to claim 1, characterized in that: The guide block (410) matches the guide groove (412) and is slidably installed.

4. The alumina purification device with high thermal conductivity according to claim 1, characterized in that: The lower end of the vertical rod (411) is fixedly connected to the upper end of the cleaning frame (46). The bottom of the cleaning frame (46) is inclined. When the two sets of cleaning frames (46) are close together, they can form a closed space inside.

5. The alumina purification device with high thermal conductivity according to claim 1, characterized in that: The stirring assembly (5) includes two sets of rotating shafts (51). The two ends of the two sets of rotating shafts (51) are rotatably installed on both sides of the lower end of the crucible (1). Pulley 1 (53) and Pulley 2 (54) are rotatably installed on the lower right side of the crucible (1). Drive belts (55) are rotatably sleeved on the outside of Pulley 1 (53) and Pulley 2 (54).

6. The alumina purification device with high thermal conductivity according to claim 5, characterized in that: The two sets of rotating shafts (51) are fixedly provided with stirring blades (52) on the outside. The stirring blades (52) are used to facilitate the stirring of alumina, thereby accelerating the purification efficiency of alumina.

7. The alumina purification device with high thermal conductivity according to claim 5, characterized in that: The bottom ends of the two sets of rotating shafts (51) are respectively driven and installed on the front ends of pulley one (53) and pulley two (54).

8. The alumina purification device with high thermal conductivity according to claim 1, characterized in that: The output end of the motor (6) is driven to the top of a set of rotating shafts (51), and the exterior of the cleaning frame (46) matches the interior of the crucible (1) and is movably mounted.

Citation Information

Patent Citations

  • Aluminum oxide purification reaction device

    CN213569557U