Screening device for high-purity aluminum oxide research

Abstract

The utility model discloses a screening device for high purity alumina research, which comprises a mounting rack, the top end of the mounting rack is fixedly connected with a filter box, the top end of the filter box is sleeved with a primary filter frame, the tops of the two sides of the filter box are provided with switch seats, one end of the mounting rack is fixedly provided with a connecting plate, and the other end of the mounting rack is provided with a secondary filter frame. And a screening mechanism is installed on the connecting plate, a flow guide plate is connected to the bottom end of the mounting frame, and a collecting frame is arranged below the mounting frame. According to the screening device for high-purity aluminum oxide research, due to the multi-stage screening structure of the device, an operator only needs to add high-purity aluminum oxide materials into the primary filtering frame at a time, after the device is started, all screening parts work cooperatively, and the multi-stage screening process is automatically completed. Materials sequentially pass through different filter screens in the device, products with different granularities can be obtained without manual intervention, an operator does not need to repeatedly replace equipment or the screens, the operation steps and time are reduced, and the research process is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of alumina technology, and in particular to a sieving device for high-purity alumina research. Background Technology

[0002] High-purity alumina, with its excellent physicochemical properties such as high purity, high hardness, high melting point, good insulation, corrosion resistance, and unique optical and electrical characteristics, has shown great application potential in many high-end fields. In the semiconductor manufacturing industry, high-purity alumina, as an important raw material, is widely used in key components such as insulating layers and diffusion barrier layers in chip manufacturing processes. Precise control of its purity and particle size distribution directly affects chip performance, yield, and reliability. With the rapid development of technology and the continuous improvement of material performance requirements in various industries, research on high-purity alumina is deepening, and the requirements for its purity, particle size distribution, crystal structure, and other indicators are becoming increasingly stringent. Only through precise sieving can alumina particles that meet different research needs be obtained, thereby accurately assessing its physicochemical properties and providing reliable data support for subsequent research and applications.

[0003] Chinese patent application CN202021537154.1 discloses a screening device for producing powdered alumina, comprising a housing with a control panel and motor on the front. The bottom of the housing is supported by legs. An inlet, a collection inlet, and a discharge outlet are sequentially located at the top, outer side, and bottom of the housing. Two sets of baffles are symmetrically arranged at the bottom of the inlet within the housing cavity to close it. A sieve plate is inclinedly positioned below the baffles to connect with the collection inlet. An inclined plate is inclinedly positioned at the bottom of the housing cavity to connect with the discharge outlet. A fixed box is fixedly mounted on the inner wall of the housing, and a movable frame is movably connected to the inner cavity of the fixed box. A vibrating plate is fixedly connected to the movable frame and contacts the bottom of the sieve plate. This utility model employs a semi-automatic baffle design to facilitate feeding and closing of the inlet, enabling continuous feeding. Furthermore, a reciprocating structure drives the vibrating plate to vibrate the sieve plate, resulting in more thorough screening. The overall structure offers excellent practical performance.

[0004] However, existing screening devices still have some shortcomings. They only have single-stage screening function and cannot achieve multi-stage particle size separation in one screening process. This results in the need to use screening equipment of different specifications multiple times for screening, which increases experimental costs and operational difficulty. Utility Model Content

[0005] To address the aforementioned shortcomings in the existing technology, this utility model provides a sieving device for high-purity alumina research. Its purpose is to solve the problems of having only single-stage sieving function, being unable to achieve multi-stage particle size separation in a single sieving process, resulting in the need to use sieving equipment of different specifications multiple times for sieving, which increases experimental costs and operational difficulty.

[0006] To achieve the above-mentioned utility model objectives, the technical solution adopted by this utility model is as follows: a sieving device for high-purity alumina research, comprising a mounting frame, a filter box fixedly connected to the top of the mounting frame, a primary filter frame sleeved on the top of the filter box, switch seats installed on the top of both sides of the filter box, a sieving frame slidably connected to the upper surface of the mounting frame, a connecting plate fixedly installed at one end of the mounting frame, a sieving mechanism installed on the connecting plate, a guide plate connected to the bottom of the mounting frame, and a collection frame provided below the mounting frame;

[0007] The screening mechanism includes a drive motor fixedly mounted on a connecting plate. The output end of the drive motor is connected to a turntable. A pull rod is rotatably connected to the turntable. One end of the pull rod is rotatably connected to a movable rod. One end of the screening frame is fixedly connected to a hinge seat. One end of the movable rod is rotatably connected to the hinge seat.

[0008] Furthermore, the primary filter frame is equipped with fixed seats on both sides of the top, and a pair of placement rods are connected to the inner wall of the primary filter frame. The placement rods are connected to the primary filter screens, and the bottom of the primary filter frame is connected to the secondary filter screen.

[0009] Furthermore, in the cavity structure of the switch base, a limiting seat is movably connected inside the switch base. A push rod is installed at one end of the limiting seat, and a return spring is connected between the other end of the limiting seat and the inner wall of the switch base. The limiting seat is inserted into and connected to the fixed seat.

[0010] Furthermore, the upper surface of the mounting bracket is provided with a pair of rectangular slots, and a sliding rod is connected to the rectangular slot.

[0011] Furthermore, a powder filter screen is connected to the bottom of the sieving frame, and a pair of sliders are provided at the bottom end of the sieving frame, with the sliders slidably connected to the slide rod.

[0012] Furthermore, a discharge port is connected to the bottom of the filter box.

[0013] Furthermore, a push handle is connected to one end of the collection box.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention relates to a sieving device for high-purity alumina research. The device's multi-stage sieving structure allows operators to simply add the high-purity alumina material to the primary filter frame once. After starting the device, all sieving components work together to automatically complete the multi-stage sieving process. The material passes sequentially through different filter screens within the device, obtaining products of different particle sizes without manual intervention. Operators no longer need to repeatedly change equipment or screens, reducing operational steps and time, significantly improving work efficiency, and enabling faster provision of samples of the required particle size for high-purity alumina research, thus accelerating the research process.

[0016] This invention relates to a sieving device for high-purity alumina research. The pore sizes of the primary filter, secondary filter, and powder filter can be precisely designed and selected according to research needs, enabling accurate separation of particles of different sizes. During the sieving process, particles of each size are strictly separated according to the preset pore size, resulting in a sample with a uniform particle size distribution. This reduces mixing and cross-contamination between particles of different sizes, effectively improving sample quality and providing a strong guarantee for the accuracy and reliability of high-purity alumina research. Attached Figure Description

[0017] Figure 1 This is a front view of a sieving device for high-purity alumina research according to this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a high-purity alumina sieving device for research according to this utility model;

[0019] Figure 3 This is a bottom view of the sieving frame of a high-purity alumina research sieving device according to the present invention;

[0020] Figure 4 This is a top view of the sieving frame of a high-purity alumina research sieving device according to the present invention;

[0021] Figure 5 This is a top view of the primary filter frame of a high-purity alumina research sieving device according to the present invention;

[0022] Figure 6 This is a cross-sectional view of the primary filter frame of a high-purity alumina research sieving device according to the present invention;

[0023] Figure 7 This is a cross-sectional view of the switch base of a high-purity alumina research sieving device according to this utility model;

[0024] Figure 8 This is an enlarged view of the collection frame of a high-purity alumina research sieving device according to the present invention;

[0025] Figure 9This is a bottom view of the filter box of a high-purity alumina research sieving device according to this utility model.

[0026] Reference table for attached figures:

[0027] 1. Mounting frame; 101. Rectangular groove; 102. Slide rod; 2. Filter box; 201. Discharge port; 3. Primary filter frame; 301. Fixing seat; 302. Placement rod; 303. Secondary filter screen; 304. Primary filter screen; 4. Switch seat; 401. Limit seat; 402. Push rod; 403. Return spring; 5. Screening frame; 501. Sliding block; 502. Powder filter screen; 6. Connecting plate; 7. Screening mechanism; 701. Drive motor; 702. Turntable; 703. Pull rod; 704. Movable rod; 705. Hinge seat; 8. Guide plate; 9. Collection frame; 901. Push handle. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0029] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0030] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0031] like Figures 1 to 9 As shown, a sieving device for high-purity alumina research includes a mounting frame 1, a filter box 2 fixedly connected to the top of the mounting frame 1, a primary filter frame 3 sleeved on the top of the filter box 2, switch seats 4 installed on the top of both sides of the filter box 2, a sieving frame 5 slidably connected to the upper surface of the mounting frame 1, a connecting plate 6 fixedly installed at one end of the mounting frame 1, a sieving mechanism 7 installed on the connecting plate 6, a guide plate 8 connected to the bottom of the mounting frame 1, and a collection frame 9 provided below the mounting frame 1.

[0032] The screening mechanism 7 includes a drive motor 701 fixedly mounted on the connecting plate 6. The output end of the drive motor 701 is connected to a turntable 702. A pull rod 703 is rotatably connected to the turntable 702. One end of the pull rod 703 is rotatably connected to a movable rod 704. One end of the screening frame 5 is fixedly connected to a hinge seat 705. One end of the movable rod 704 is rotatably connected to the hinge seat 705.

[0033] With the above scheme, after the device is started, the drive motor 701 of the screening mechanism 7 drives the turntable 702 to rotate. Through the pull rod 703 and the movable rod 704, the screening frame 5 slides back and forth on the slide rod 102 on the mounting frame 1. The powder filter screen 502 automatically completes the classification and screening of the material. The whole process does not require multiple manual interventions, reducing equipment debugging, material transfer and other steps, significantly reducing labor costs. At the same time, the screening time is greatly shortened, and the operator can obtain the required particle size sample more quickly, which speeds up the research process and improves the overall work efficiency.

[0034] The primary filter frame 3 has a fixed base 301 installed on the top of both sides. The inner wall of the primary filter frame 3 has a pair of placement rods 302 connected to it. The placement rods 302 are connected to the primary filter screen 304. The bottom of the primary filter frame 3 is connected to the secondary filter screen 303.

[0035] Through the above scheme, the pore size of the primary filter screen 304 and the secondary filter screen 303 can be precisely designed and selected according to research needs, so as to achieve accurate separation of particles of different sizes. After multi-stage sieving, the obtained sample has a uniform particle size distribution and low impurity content, which effectively improves the purity and quality of the sample, provides more reliable experimental materials for the research of high-purity alumina, and ensures the accuracy and reliability of the research results.

[0036] The switch base 4 has a cavity structure. A limit seat 401 is movably connected inside the switch base 4. A push rod 402 is installed at one end of the limit seat 401. A return spring 403 is connected between the other end of the limit seat 401 and the inner wall of the switch base 4. The limit seat 401 is inserted and connected to the fixed seat 301.

[0037] The upper surface of the mounting bracket 1 has a pair of rectangular slots 101, and a slide rod 102 is connected to the rectangular slot 101.

[0038] With the above solution, during installation, simply align the fixed seat 301 with the limiting seat 401 and insert it. The elastic force of the return spring 403 will cause the limiting seat 401 to firmly lock the fixed seat 301, achieving quick installation. During disassembly, simply push the push rod 402 to remove the limiting seat 401 from the fixed seat 301. The operation is simple and convenient. The screening frame 5 is slidably connected to the slide rod 102 on the upper surface of the mounting frame 1 via the slider 501 at the bottom. This sliding connection method not only makes the installation and disassembly of the screening frame 5 easy and quick, but also ensures the stability during the screening process. It facilitates operators to conduct comprehensive inspections and cleaning maintenance of the equipment, reduces the probability of equipment failure, effectively extends the service life of the equipment, and reduces the operating cost of the equipment.

[0039] The bottom of the sieve frame 5 is connected to a powder filter screen 502, and the bottom end of the sieve frame 5 is provided with a pair of sliders 501, which are slidably connected to the slide rod 102.

[0040] Through the above scheme, the sliding blocks 501 at the bottom of the screening frame 5 are slidably connected to the sliding rod 102. This sliding connection method ensures the stability and accuracy of the reciprocating motion of the screening frame 5. The reciprocating motion of the screening frame 5 causes the material inside to be continuously vibrated and tumbled, which promotes the full dispersion of material particles and avoids particle agglomeration, creating good conditions for subsequent fine screening.

[0041] The bottom of the filter box 2 is connected to a discharge port 201.

[0042] One end of the collection box 9 is connected to a push handle 901.

[0043] The usage process of this utility model patent involves slowly pouring the high-purity alumina material to be screened into the primary filter frame 3. The material first contacts the primary filter screen 304 placed on the paired placement rods 302 connected to the inner wall of the primary filter frame 3. The primary filter screen 304 has a specific pore size, capable of trapping larger particles or incompletely crushed materials. These trapped particles remain above the primary filter screen 304, while materials smaller than the pore size of the primary filter screen 304 pass through smoothly and continue falling to the secondary filter screen 303 at the bottom of the primary filter frame 3. After the material reaches the secondary filter screen 303... The secondary filter 303 further performs its screening function. The pore size of the secondary filter 303 is smaller than that of the primary filter 304. It can trap particles with a diameter between the pore sizes of the primary filter 304 and the secondary filter 303, keeping these particles on the secondary filter 303. Particles with smaller diameters that meet the requirements for subsequent screening pass through the secondary filter 303 and continue to fall into the screening frame 5, which is slidably connected to the upper surface of the mounting frame 1. The screening mechanism 7 is then activated, and the power to the drive motor 701 is turned on. The drive motor 701 begins to run, and its output drives the turntable 702 to rotate. The turntable 702 rotates... At the same time, the pull rod 703, which is rotatably connected to it, moves accordingly. The pull rod 703 then drives the movable rod 704 to perform reciprocating linear motion. Since one end of the movable rod 704 is rotatably connected to the hinge seat 705, which is fixedly connected to one end of the screening frame 5, the reciprocating linear motion of the movable rod 704 is transmitted to the screening frame 5 through the hinge seat 705, causing the screening frame 5 to slide reciprocally on the upper surface of the mounting frame 1. The paired sliders 501 at the bottom of the screening frame 5 are slidably connected to the slide rod 102 connected to the rectangular groove 101 on the upper surface of the mounting frame 1. This sliding connection method ensures the stability and accuracy of the reciprocating motion of the screening frame 5. During the reciprocating motion, the material inside is constantly subjected to vibration and tumbling, which promotes the full dispersion of material particles and prevents particle agglomeration. At the same time, the powder filter 502 connected to the bottom of the sieve frame 5 performs fine sieving of the material. Only fine particles with a particle size smaller than the pore size of the powder filter 502 can pass through, while slightly larger particles are trapped in the sieve frame 5, thus obtaining a high-purity alumina powder sample with uniform particle size that meets the research requirements. The fine particles that pass through the powder filter 502 slide down the guide plate 8 connected to the bottom of the mounting frame 1 into the collection frame 9 under the action of the reciprocating motion of the sieve frame 5. The operator can easily push the collection frame 9 to transfer the collected sample to the designated location for subsequent research or use through the push handle 901 connected to one end of the collection frame 9.

[0044] The above description is only a preferred embodiment of this utility model patent and is not intended to limit this utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model patent should be included within the protection scope of this utility model patent.

Claims

1. A sieving device for high-purity alumina research, characterized in that, The system includes a mounting frame (1), a filter box (2) fixedly connected to the top of the mounting frame (1), a primary filter frame (3) sleeved on the top of the filter box (2), switch seats (4) installed on the top of both sides of the filter box (2), a screening frame (5) slidably connected to the upper surface of the mounting frame (1), a connecting plate (6) fixedly installed at one end of the mounting frame (1), a screening mechanism (7) installed on the connecting plate (6), a guide plate (8) connected to the bottom end of the mounting frame (1), and a collection frame (9) provided below the mounting frame (1). The screening mechanism (7) includes a drive motor (701) fixedly installed on the connecting plate (6). The output end of the drive motor (701) is connected to a turntable (702). A pull rod (703) is rotatably connected to the turntable (702). One end of the pull rod (703) is rotatably connected to a movable rod (704). One end of the screening frame (5) is fixedly connected to a hinge seat (705). One end of the movable rod (704) is rotatably connected to the hinge seat (705).

2. The sieving device for high-purity alumina research according to claim 1, characterized in that: The primary filter frame (3) has a fixed base (301) installed on the top of both sides. Placement rods (302) are connected in pairs on the inner wall of the primary filter frame (3). A primary filter screen (304) is connected to the placement rod (302). A secondary filter screen (303) is connected to the bottom of the primary filter frame (3).

3. The sieving device for high-purity alumina research according to claim 1, characterized in that: The switch base (4) has a cavity structure, and a limiting seat (401) is movably connected inside the switch base (4). A push rod (402) is installed at one end of the limiting seat (401), and a return spring (403) is connected between the other end of the limiting seat (401) and the inner wall of the switch base (4). The limiting seat (401) is inserted into the fixed seat (301).

4. The sieving device for high-purity alumina research according to claim 1, characterized in that: The upper surface of the mounting bracket (1) is provided with rectangular grooves (101) in pairs, and a slide rod (102) is connected to the rectangular grooves (101).

5. A sieving device for high-purity alumina research according to claim 4, characterized in that: The bottom of the sieving frame (5) is connected to a powder filter screen (502), and the bottom end of the sieving frame (5) is provided with a pair of sliders (501), which are slidably connected to the slide rod (102).

6. The sieving device for high-purity alumina research according to claim 1, characterized in that: The bottom of the filter box (2) is connected to a discharge port (201).

7. The sieving device for high-purity alumina research according to claim 1, characterized in that: One end of the collection box (9) is connected to a push handle (901).

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