Drying device for alumina powder prepared from alumina ceramics

Abstract

The utility model discloses an alumina powder drying device for alumina ceramic preparation, which belongs to the technical field of ceramic preparation and comprises a base and a motor, one side of the base is fixedly connected with a support plate, a filter component is arranged in the base, and alumina powder and alumina particles are stirred and mixed by stirring blades. Alumina particles can adsorb water molecules, so that the purpose of drying alumina powder is achieved, and then the mixture achieves a centrifugal effect under the high-speed rotation of the first rotary drum and the second rotary drum; light aluminum oxide powder diffuses towards the inner walls of the first rotary drum and the second rotary drum and flows to the aluminum oxide powder outlet along the stirring blades and gaps between the first rotary drum and the second rotary drum, heavy aluminum oxide particles flow out of the aluminum oxide particle outlet, and the first outlet is opposite to the aluminum oxide particle outlet in position. And the second outlet is opposite to the alumina powder outlet, so that the separated alumina powder and alumina particles can be accurately collected.

Description

Technical Field

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

[0002] Alumina powder may contain a certain amount of moisture or solvent during the preparation process. The presence of these moisture or solvents will affect the performance and quality of ceramic products. Through drying treatment, the moisture and solvent in the alumina powder can be effectively removed to ensure the density and mechanical properties of the ceramic products.

[0003] It is only applicable to high-purity alumina powder. Since it has no dust removal effect, it is not applicable to ordinary alumina powder mixed with dust, so its application level is low.

[0004] The existing patent (Announcement No.: CN219693697U) is an alumina powder drying and storage device. The alumina powder enters the dust removal chamber from the feed pipe, and the stirring motor drives the stirring shaft to drive the stirring rod. The stirring rod drives the friction block to rub against the inner wall of the dust removal chamber to generate static electricity, which absorbs fine dust impurities mixed in the alumina powder. After dust removal, the alumina powder falls into the drying cylinder for drying, and finally falls into the storage box for storage for use.

[0005] In view of the above problems, existing patents have provided solutions, but there are certain problems in removing dust from alumina powder through static electricity. Alumina powder is often prone to static electricity due to its tiny particle size and high specific surface area. When alumina powder is charged by friction, contact or induction, they will show the characteristics of electrostatic adsorption, and will adsorb alumina powder while removing dust. At the same time, there is a lack of certain exhaust measures during operation, and the internal water vapor cannot be discharged, which will lead to low drying efficiency.

[0006] Therefore, an alumina powder drying device prepared by alumina ceramics is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide an alumina powder drying device prepared from alumina ceramics, which can solve the problem that alumina powder is adsorbed while removing dust, and there is a lack of certain exhaust measures during operation, so that internal water vapor cannot be discharged, thereby causing low drying efficiency.

[0008] To achieve the above object, the utility model provides the following technical solution: an alumina powder drying device prepared by alumina ceramics, comprising a base and a motor, a support plate is fixedly connected to one side of the base, and a filter assembly is arranged inside the base;

[0009] The filtering assembly includes a first drum, a second drum, a stirring shaft, a feed shaft, a feed channel, a feed port, an alumina particle outlet, an alumina powder outlet, a spiral outlet and a stirring blade. The first drum is arranged at one end of the base, one end of the second drum is threadedly connected to one end of the first drum, one end of the stirring shaft is threadedly connected to the other end of the second drum, the stirring shaft is coaxially arranged with the first drum and the second drum, the feed shaft is arranged inside the stirring shaft, the feed channel is opened inside the stirring shaft, the feed port is opened inside the feed shaft and is coaxially arranged with the feed channel, the alumina particle outlet is opened at one end of the first drum, the alumina powder outlet is opened at one end of the second drum close to the feed port, the spiral outlet is opened on the surface of the stirring shaft and passes through the feed channel, and the stirring blade is fixedly connected to the surface of the stirring shaft.

[0010] Preferably, a first thread is provided between the first rotating drum and the second rotating drum, and a second thread is provided between the stirring shaft and the second rotating drum.

[0011] Preferably, a first outlet is provided at a side of the bottom of the base close to the motor, and a second outlet is provided at a side of the bottom of the base away from the support plate.

[0012] Preferably, the first outlet is opposite to the outlet of the aluminum oxide particles, and the second outlet is opposite to the outlet of the aluminum oxide powder.

[0013] Preferably, the circular cross-sections at both ends of the first drum and the second drum are different in size, and the cross-section of the first drum is a smooth transition shape as a whole, presenting a certain slope.

[0014] Preferably, a protective shell is rotatably connected to the top of the base, and a handle is fixedly connected to one side of the protective shell.

[0015] Preferably, the feeding shaft is configured to be hollow and communicated with the feeding port.

[0016] Preferably, the output end of the motor is fixedly connected to a rotating shaft, and the other end of the rotating shaft is rotatably connected to the second rotating drum.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The present application sets a filtering component, and the stirring blade stirs and mixes the alumina powder and alumina particles. The alumina particles will absorb water molecules to achieve the purpose of drying the alumina powder. Then the mixture has a centrifugal effect under the high-speed rotation of the first drum and the second drum. The light alumina powder diffuses toward the inner walls of the first drum and the second drum, and flows toward the alumina powder outlet along the gap between the stirring blade and the first drum and the second drum, and the heavier alumina particles flow out from the alumina particle outlet.

[0019] 2. The present application provides a first thread and a second thread to facilitate the installation of the filter assembly. The first outlet is opposite to the outlet of the alumina particles, and the second outlet is opposite to the outlet of the alumina powder. This ensures that the separated alumina powder and alumina particles can be accurately collected. The protective shell can effectively protect the staff. At the same time, the feed shaft is hollow and connected to the feed port, which reduces the additional feeding device and simplifies the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is the overall structural view of the utility model;

[0022] Figure 2 This is a view of the internal structure of the base of the utility model;

[0023] Figure 3 This is the overall structural view of the filter assembly of the utility model;

[0024] Figure 4 This is a view of the internal structure of the filter assembly of the utility model;

[0025] Figure 5 This is a partial structural view of the filter component of the utility model.

[0026] Description of reference numerals:

[0027] 1. Base; 2. Motor; 3. Support plate; 4. Filter assembly; 5. First thread; 6. Second thread; 7. First outlet; 8. Second outlet; 9. Protective shell; 10. Handle; 11. Rotating shaft; 401. First rotating drum; 402. Second rotating drum; 403. Stirring shaft; 404. Feeding shaft; 405. Feeding channel; 406. Feeding port; 407. Alumina particle outlet; 408. Alumina powder outlet; 409. Spiral outlet; 410. Stirring blade. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 5 , the utility model provides a technical solution:

[0030] An alumina powder drying device prepared from alumina ceramics comprises a base 1 and a motor 2, a support plate 3 is fixedly connected to one side of the base 1, and a filter assembly 4 is arranged inside the base 1;

[0031] The filter assembly 4 includes a first drum 401, a second drum 402, a stirring shaft 403, a feed shaft 404, a feed channel 405, a feed port 406, an alumina particle outlet 407, an alumina powder outlet 408, a spiral outlet 409 and a stirring blade 410. The first drum 401 is arranged at one end of the base 1, one end of the second drum 402 is threadedly connected to one end of the first drum 401, one end of the stirring shaft 403 is threadedly connected to the other end of the second drum 402, and the stirring shaft 403 is coaxial with the first drum 401 and the second drum 402. The feed shaft 404 is arranged inside the stirring shaft 403, the feed channel 405 is opened inside the stirring shaft 403, the feed port 406 is opened inside the feed shaft 404 and is coaxially arranged with the feed channel 405, the alumina particle outlet 407 is opened at one end of the first rotating drum 401, the alumina powder outlet 408 is opened at one end of the second rotating drum 402 close to the feed port 406, the spiral outlet 409 is opened on the surface of the stirring shaft 403 and passes through the feed channel 405, and the stirring blade 410 is fixedly connected to the surface of the stirring shaft 403.

[0032] By setting the filter component 4, the alumina particles are first fed into the agitator from the feed port 406, and then the alumina powder is fed from the feed port 406 during drying, and the alumina powder flows out through the spiral outlet 409. The stirring blade 410 stirs and mixes the alumina powder and the alumina particles. The alumina particles will absorb water molecules to achieve the purpose of drying the alumina powder. Then, the mixture has a centrifugal effect under the high-speed rotation of the first drum 401 and the second drum 402. The light alumina powder diffuses toward the inner walls of the first drum 401 and the second drum 402, and flows toward the alumina powder outlet 408 along the gap between the stirring blade 410 and the first drum 401 and the second drum 402, and the heavier alumina particles flow out from the alumina particle outlet 407.

[0033] Specifically, Figure 4 As shown, a first thread 5 is provided between the first rotating drum 401 and the second rotating drum 402 , and a second thread 6 is provided between the stirring shaft 403 and the second rotating drum 402 .

[0034] Specifically, Figure 2 As shown, a first outlet 7 is provided at a side of the bottom of the base 1 close to the motor 2 , and a second outlet 8 is provided at a side of the bottom of the base 1 away from the support plate 3 .

[0035] Specifically, Figure 1 As shown, the first outlet 7 is opposite to the aluminum oxide particle outlet 407 , and the second outlet 8 is opposite to the aluminum oxide powder outlet 408 .

[0036] Specifically, Figure 4 As shown, the circular cross-sections at both ends of the first drum 401 and the second drum 402 are different in size, and the cross-section of the first drum 401 is a smooth transition shape as a whole, showing a certain slope.

[0037] Specifically, Figure 1 As shown, a protective shell 9 is rotatably connected to the top of the base 1, and a handle 10 is fixedly connected to one side of the protective shell 9.

[0038] Specifically, Figure 4 As shown, the feeding shaft 404 is configured to be hollow and communicated with the feeding port 406 .

[0039] Specifically, Figure 3 As shown, the output end of the motor 2 is fixedly connected to the rotating shaft 11 , and the other end of the rotating shaft 11 is rotatably connected to the second rotating drum 402 .

[0040] By setting the first thread 5 and the second thread 6, the installation of the filter assembly 4 is facilitated. The first outlet 7 is opposite to the alumina particle outlet 407, and the second outlet 8 is opposite to the alumina powder outlet 408. This can ensure that the separated alumina powder and alumina particles can be accurately collected. The protective shell 9 can effectively protect the staff. At the same time, the feeding shaft 404 is hollow and communicated with the feeding port 406, which reduces the additional feeding device and simplifies the structure.

[0041] By adopting the above technical solution, certain problems existing in the existing dust removal of alumina powder by static electricity are solved. Alumina powder is often prone to static electricity due to its small particle size and high specific surface area. When the alumina powder is charged by friction, contact or induction, it will show the characteristics of electrostatic adsorption, and will adsorb the alumina powder while removing dust. At the same time, there is a lack of certain exhaust measures during operation, and the internal water vapor cannot be discharged, which will lead to the problem of low drying efficiency.

[0042] Working principle: When the present application is in use, the alumina powder is first fed in from the feed port 406, and the alumina powder flows out through the spiral outlet 409. The stirring blade 410 stirs and mixes the alumina powder and the alumina particles. The alumina particles will absorb water molecules to achieve the purpose of drying the alumina powder. Then the mixture is centrifuged under the high-speed rotation of the first drum 401 and the second drum 402. The light alumina powder diffuses toward the inner walls of the first drum 401 and the second drum 402, and flows toward the alumina powder outlet 408 along the gap between the stirring blade 410 and the first drum 401 and the second drum 402. The heavier alumina particles flow out from the alumina particle outlet 407. During the drying process, the alumina particle outlet 407 and the alumina powder outlet 408 can also play the role of exhaust. The separated alumina powder and alumina particles are accurately collected through the first outlet 7 and the second outlet 8.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A device for drying alumina powder prepared from alumina ceramics, comprising a base (1) and a motor (2), characterized in that: A support plate (3) is fixedly connected to one side of the base (1), and a filter assembly (4) is arranged inside the base (1); The filtering assembly (4) comprises a first rotating drum (401), a second rotating drum (402), a stirring shaft (403), a feeding shaft (404), a feeding channel (405), a feeding port (406), an alumina particle outlet (407), an alumina powder outlet (408), a spiral outlet (409) and a stirring blade (410), wherein the first rotating drum (401) is arranged at one end of the base (1), one end of the second rotating drum (402) is threadedly connected to one end of the first rotating drum (401), one end of the stirring shaft (403) is threadedly connected to the other end of the second rotating drum (402), and the stirring shaft (403) is connected to the first rotating drum (401) and the second rotating drum (402) at the same time. The first rotary drum (401) is provided with a first feed shaft (404), the feed shaft (404) is provided inside the stirring shaft (403), the feed channel (405) is provided inside the stirring shaft (403), the feed port (406) is provided inside the feed shaft (404) and is coaxially provided with the feed channel (405), the alumina particle outlet (407) is provided at one end of the first rotary drum (401), the alumina powder outlet (408) is provided at one end of the second rotary drum (402) close to the feed port (406), the spiral outlet (409) is provided on the surface of the stirring shaft (403) and passes through the feed channel (405), and the stirring blade (410) is fixedly connected to the surface of the stirring shaft (403).

2. The alumina powder drying device for preparing alumina ceramics according to claim 1, characterized in that: A first thread (5) is provided between the first rotating drum (401) and the second rotating drum (402), and a second thread (6) is provided between the stirring shaft (403) and the second rotating drum (402).

3. The alumina powder drying device for preparing alumina ceramics according to claim 1, characterized in that: A first outlet (7) is provided on a side of the bottom of the base (1) close to the motor (2), and a second outlet (8) is provided on a side of the bottom of the base (1) away from the support plate (3).

4. The alumina powder drying device for preparing alumina ceramics according to claim 3, characterized in that: The first outlet (7) is located opposite to the aluminum oxide particle outlet (407), and the second outlet (8) is located opposite to the aluminum oxide powder outlet (408).

5. The alumina powder drying device for preparing alumina ceramics according to claim 1, characterized in that: The circular cross-sections at both ends of the first rotating drum (401) and the second rotating drum (402) are different in size, and the cross-section of the first rotating drum (401) as a whole is in a smoothly transitioned shape, presenting a certain slope.

6. The alumina powder drying device for preparing alumina ceramics according to claim 1, characterized in that: The top of the base (1) is rotatably connected to a protective shell (9), and one side of the protective shell (9) is fixedly connected to a handle (10).

7. The alumina powder drying device for preparing alumina ceramics according to claim 1, characterized in that: The feeding shaft (404) is configured to be hollow and communicates with the feeding port (406).

8. The alumina powder drying device for preparing alumina ceramics according to claim 1, characterized in that: The output end of the motor (2) is fixedly connected to a rotating shaft (11), and the other end of the rotating shaft (11) is rotationally connected to the second rotating drum (402).

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