Ceramic powder granulating device
By introducing a particle screening mechanism and a stirring mechanism into the ceramic powder granulation device, the problem of uneven particle sizes is solved, effective particle screening and quality control are achieved, and product quality and production efficiency are improved.
Patent Information
- Application Number
- CN202422102884.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-08-27
AI Technical Summary
Existing microwave dielectric ceramic powder granulation devices are prone to uneven particle sizes during the granulation process and cannot be effectively screened, resulting in particles that do not meet the requirements entering subsequent production, affecting product quality.
A ceramic powder granulation device was designed, which included a granulator, a particle screening mechanism and a stirring mechanism. The particle screening was performed by a vibration motor-driven screening frame. The particles that met the requirements were separated from those that did not by the screening net and the guide plate. The particle quality was improved by a drying mechanism.
It achieves effective screening of ceramic particles, ensures that particles that meet the requirements enter the next process, avoids unqualified particles affecting product quality, and improves production reliability and product yield.
Smart Images
Figure CN223367429U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of ceramic granulation, in particular to a ceramic powder granulation device. Background Art
[0002] Microwave dielectric ceramics are key basic raw materials for modern communication technology. They are mainly used in the manufacture of microwave electronic components such as resonators, filters, dielectric antennas, dielectric waveguide circuits, dielectric substrates, etc. They are widely used in mobile communications, satellite communications, unmanned vehicles, the Internet of Things, radar and other fields.
[0003] In the production process of microwave dielectric ceramic materials, dielectric ceramic powder cannot be directly dry-pressed into sheets. It must first be granulated to make the powder have good fluidity so that products without internal defects can be pressed out. If granulation is not performed, the pressed products will have no strength, be prone to delamination and cracking, and have a poor product yield.
[0004] The existing microwave dielectric ceramic powder granulation preparation device has the following disadvantages: the particle size is easily uneven during the granulation process, the existing granulation device cannot screen the particles, and it is easy for particles that do not meet the requirements to be directly transported to subsequent production and processing, affecting product quality and being inconvenient to use. Utility Model Content
[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is to provide a ceramic powder granulation device, including a granulator for making ceramic powder into ceramic granules, the input end of the granulator is used to feed ceramic powder, and the output end of the granulator flows out the ceramic granules; a base is arranged below the granulator and is fixedly connected to the granulator; a discharge pipe passes through the base, and one end of the discharge pipe is connected to the output end of the granulator; a particle screening mechanism is arranged below the base and connected to the other end of the discharge pipe to screen the ceramic granules; wherein the particle screening mechanism includes: a screening box, the screening box has a first discharge port and a second discharge port outlet; a vibration motor is arranged on the outside of the screening box, and the vibration motor has a vibration end, and the vibration end enters the interior of the screening box; a screening frame is arranged in the screening box so that the other end of the discharge pipe is aligned with the screening frame; one side of the screening frame is also connected to the vibration end and can be driven to vibrate by the vibration motor; the bottom of the screening frame is provided with a screening net, and the screening net has screening holes, and one side of the screening frame has a screening material outlet adapted to the first discharge port; when the screening frame vibrates, ceramic particles with a diameter larger than the screening hole flow to the first discharge port, and ceramic particles with a diameter smaller than the screening hole pass through the screening net and flow to the second discharge port.
[0006] In some embodiments of the present application, the particle screening mechanism also includes a guide plate, which is provided in plurality and is arranged obliquely at the top of the screening frame along the circumference of the screening frame, so that the ceramic particles flowing out of the discharge pipe can enter the screening frame through the guide plate.
[0007] In some embodiments of the present application, the particle screening mechanism further includes a connecting spring, and a plurality of the connecting springs are provided between the screening frame and the inner wall of the screening box along the vibration direction of the screening frame.
[0008] In some embodiments of the present application, in the height direction of the screening box, the first discharge port is located above the second discharge port.
[0009] In some embodiments of the present application, the ceramic powder granulation device also includes a stirring mechanism, which is arranged at the top of the granulator and is used to stir the ceramic powder; wherein the stirring mechanism includes: a stirring box, the stirring box having a stirring cavity, and the bottom of the stirring cavity is connected to the top of the granulator; a feeding pipe, which is arranged at the top of the stirring box and is used to convey ceramic powder into the stirring box; a stirring motor, which is arranged at the top of the stirring box, and the rotating shaft of the stirring box enters the stirring box; a rotating rod, which is arranged in the stirring cavity along the vertical direction of the stirring box and is fixedly connected to the rotating shaft of the stirring box; a stirring part, which is distributed along the circumference of the rotating rod and is fixedly connected to the rotating rod.
[0010] In some embodiments of the present application, the stirring portion includes a top stirring blade and a bottom stirring blade, wherein the top stirring blade is provided in plurality, is evenly distributed along the circumference of the rotating rod and is fixed to the top of the rotating rod; the bottom stirring blade is provided in plurality, is evenly distributed along the circumference of the rotating rod and is fixed to the bottom of the rotating rod.
[0011] In some embodiments of the present application, the stirring part also includes a plurality of scrapers, the top of the scraper is fixedly connected to the side of the top stirring blade away from the rotating rod, and the bottom of the scraper is fixedly connected to the side of the bottom stirring blade away from the rotating rod.
[0012] In some embodiments of the present application, the stirring part also includes a spiral blade mounted on the rotating rod, the spiral blade is located between the top stirring blade and the bottom stirring blade, and the radial distance between the spiral blade and the rotating rod is smaller than the radial distance between the scraper and the rotating rod.
[0013] In some embodiments of the present application, the ceramic powder granulation device also includes a drying mechanism, which includes a drying fan and an air supply duct. The drying fan is arranged on the base, and one end of the air supply duct is connected to the air supply port of the drying fan, and the other end is connected to the stirring cavity.
[0014] In some embodiments of the present application, the base includes a support platform and support legs arranged around the bottom of the support platform.
[0015] The beneficial effects of the present invention are as follows: the present invention discloses a ceramic powder granulation device, comprising a granulator, a base, a discharge pipe, and a particle screening mechanism, wherein the granulator is used to make ceramic powder into ceramic particles, the base is arranged below the granulator, and is fixedly connected to the granulator; the discharge pipe runs through the base, and one end of the discharge pipe is connected to the output end of the granulator, and the other end of the discharge pipe is connected to the particle screening mechanism, which is arranged below the base to screen the ceramic particles; in the present invention, ceramic particles that meet the requirements can be screened out through the particle screening mechanism, and ceramic particles that do not meet the requirements can be recycled, thereby avoiding the use of ceramic particles that do not meet the requirements in production and processing to affect product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a three-dimensional schematic diagram of a ceramic powder granulation device of the present invention;
[0017] Figure 2 This is a partial cross-sectional view of a ceramic powder granulation device of the present utility model;
[0018] Figure 3 This is a partial structural diagram of a stirring mechanism in a ceramic powder granulation device of the present invention;
[0019] Figure 4 The utility model is a partial structural diagram of a particle screening mechanism in a ceramic powder granulating device. DETAILED DESCRIPTION
[0020] To facilitate understanding of the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.
[0021] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art in the technical field of this utility model. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" as used in this specification includes any and all combinations of one or more of the relevant listed items.
[0022] like Figures 1 to 4 As shown, the present application provides a ceramic powder granulation device, which includes a granulator 10, a base 20, a discharge pipe 30 and a particle screening mechanism 40. The ceramic powder can be made into ceramic particles by the granulator 10, and the ceramic particles that meet the requirements can be screened out by the particle screening mechanism 40, and the ceramic particles that do not meet the requirements can be recycled to avoid the use of ceramic particles that do not meet the requirements in production and processing and affect product quality.
[0023] Specifically, in Figure 1 In the figure, the granulator 10 has an input end (not shown) and an output end (not shown). The input end of the granulator 10 is used to feed ceramic powder, and the output end of the granulator 10 flows out ceramic particles; the base 20 is arranged below the granulator 10 and is fixedly connected to the granulator 10; Figure 2 In the embodiment, the discharge pipe 30 passes through the base 20, one end of the discharge pipe 30 is connected to the output end of the granulator 10, and the other end of the discharge pipe 30 enters the particle screening mechanism 40 to transmit ceramic particles to the particle screening mechanism 40. In this embodiment, the granulator 10 adds a certain amount of plasticizer to the fine ceramic powder to produce spherical particles with larger particle size, a certain particle size distribution, and good fluidity. This embodiment does not limit the specific structure of the granulator 10, and an existing ceramic particle granulator 10 can be used.
[0024] Furthermore, the particle screening mechanism 40 is provided below the base 20 for screening ceramic particles. Figure 1 、 Figure 2 as well as Figure 4 The particle screening mechanism 40 includes a screening box 41, a vibration motor 42, and a screening frame 43. Figure 1 The middle screening box 41 has a first discharge port 411 and a second discharge port 412 , wherein the ceramic particles meeting the requirements flow out from the first discharge port 411 , and the ceramic particles not meeting the requirements flow out from the second discharge port 412 .
[0025] The vibration motor 42 is arranged on the outside of the screening box 41. The vibration motor 42 has a vibration end. The vibration end enters the interior of the screening box 41 and is connected to the screening frame 43 located in the screening box 41. When the vibration motor 42 is working, it can drive the screening frame 43 to vibrate in the screening box 41 through its vibration end to screen the ceramic particles.
[0026] like Figure 4 As shown, in this embodiment, the other end of the discharge pipe 30 passes through the screening box 41 and is aligned with the screening frame 43, and the ceramic particles are transported into the screening frame 43 for vibration screening; and the bottom of the screening frame 43 is provided with a screening mesh 431, the screening mesh 431 has screening holes, and one side of the screening frame 43 is provided with a screening outlet 432 adapted to the first discharge port 411; when the screening frame 43 vibrates, ceramic particles with a diameter larger than the screening holes flow through the screening outlet 432 to the first discharge port 411, and ceramic particles with a diameter smaller than the screening holes pass through the screening mesh 431 and flow to the second discharge port 412. In this way, ceramic particles that meet the requirements (i.e., ceramic particles with a diameter larger than the screening holes) can be screened out from the first discharge port 411, while ceramic particles that do not meet the requirements can be recovered from the second discharge port 412.
[0027] Furthermore, in this embodiment, the screening frame 43 is tilted in the screening box 41, the distance between the screening material outlet 432 and the top of the screening box 41 is H1, and the distance between one end of the screening frame 43 away from the screening material outlet 432 and the top of the screening box 41 is H2, H1>H2, so that the ceramic particles that meet the requirements of the screening frame 43 automatically flow to the first discharge port 411 during the vibration process.
[0028] Furthermore, in this embodiment, the screening net 431 is detachably connected to the screening frame 43, which facilitates replacement of the screening net 431 with different screening holes to adjust the screening standard; and also facilitates maintenance and replacement when the screening net 431 is damaged.
[0029] Furthermore, in this embodiment, the particle screening mechanism 40 also includes a guide plate 44, which is provided in plurality and is obliquely arranged at the top of the screening frame 43 along the circumference of the screening frame 43, so that the ceramic particles flowing out of the discharge pipe 30 can enter the screening frame 43 through the guide plate 44.
[0030] Furthermore, in this embodiment, the particle screening mechanism 40 also includes connecting springs 45. Along the vibration direction of the screening frame 43, multiple connecting springs 45 are arranged between the screening frame 43 and the inner wall of the screening box 41. The connecting springs 45 can fix the two sides of the screening frame 43 on the one hand, and on the other hand, can also prevent the screening frame 43 from colliding with the inner wall of the screening box 41 during the vibration process.
[0031] Furthermore, in this embodiment, in the height direction of the screening box 41, the first discharge port 411 is located above the second discharge port 412, and the second discharge port 412 can be set on the side wall of the screening box 41 or at the bottom of the screening box 41, and the bottom wall of the screening box 41 is set at an angle, which can automatically flow ceramic particles that do not meet the requirements to the second discharge port 412.
[0032] Furthermore, in this embodiment, the ceramic powder granulation device also includes a stirring mechanism 50, which is arranged on the top of the granulator 10 and can fully stir the ceramic powder to avoid accumulation of ceramic powder. The fully stirred ceramic powder enters the granulator 10 for granulation.
[0033] Specific, combined Figure 2 and Figure 3 In this embodiment, the stirring mechanism 50 includes a stirring box 51, a feed pipe 52, a stirring motor 53, a rotating rod 54, and a stirring portion. The stirring box 51 has a stirring cavity 511, the bottom of which is connected to the top of the granulator 10. The feed pipe 52 is disposed at the top of the stirring box 51, through which ceramic powder is transported into the stirring box 51. The stirring motor 53 is disposed at the top of the stirring box 51, with the rotating shaft of the stirring box 51 extending into the stirring box 51. The rotating rod 54 is disposed vertically within the stirring cavity 511 and is fixedly connected to the rotating shaft of the stirring box 51. The stirring portion is distributed along the circumference of the rotating rod 54 and is fixedly connected to the rotating rod 54. When the stirring motor 53 is in operation, it drives the rotating rod 54 and the stirring portion to rotate, stirring the ceramic powder in the stirring box 51. The stirred ceramic powder flows from the bottom of the stirring box 51 into the granulator 10.
[0034] Furthermore, in this embodiment, the stirring portion includes a top stirring blade 55 and a bottom stirring blade 56, wherein the top stirring blade 55 is provided in plurality and is evenly distributed along the circumference of the rotating rod 54 and fixed to the top of the rotating rod 54; the bottom stirring blade 56 is provided in plurality and is evenly distributed along the circumference of the rotating rod 54 and fixed to the bottom of the rotating rod 54. A first stirring groove 551 and a second stirring groove 552 are provided through the top stirring blade 55 and the bottom stirring blade 56, and the shapes of the first stirring groove 551 and the second stirring groove 552 are both concave, and the shape and size of the first stirring groove 551 are smaller than the shape and size of the second stirring groove 552; during the stirring process, the ceramic powder can flow from one side of the top stirring blade 55 and the bottom stirring blade 56 to the other side of the top stirring blade 55 and the bottom stirring blade 56 through the first stirring groove 551 and the second stirring groove 552, so that the ceramic powder is fully stirred.
[0035] Furthermore, in this embodiment, the stirring part also includes a plurality of scrapers 57, the top of the scraper 57 is fixedly connected to the side of the top stirring blade 55 away from the rotating rod 54, and the bottom of the scraper 57 is fixedly connected to the side of the bottom stirring blade 56 away from the rotating rod 54; in this embodiment, the scraper 57 is a vertical rod-shaped structure as a whole, and its cross-section is triangular, and the tip of the scraper 57 is in contact with the inner wall of the stirring cavity 511; during the rotation of the stirring part, the scraper 57 can scrape the inner wall of the stirring cavity 511 to prevent the ceramic powder from sticking to the inner wall of the stirring cavity 511.
[0036] Furthermore, the stirring part also includes a spiral blade 58 mounted on the rotating rod 54, and the spiral blade 58 is located between the top stirring blade 55 and the bottom stirring blade 56. The radial distance between the spiral blade 58 and the rotating rod 54 is smaller than the radial distance between the scraper 57 and the rotating rod 54, that is, the scraper 57 is located outside the spiral blade 58; in this embodiment, the spiral blade 58 rotates with the rotating rod 54, and can stir the ceramic powder while transferring the ceramic powder from the top of the stirring cavity 511 to the bottom of the stirring cavity 511, thereby flowing into the granulator 10.
[0037] Further, such as Figure 1 and Figure 2 As shown, in this embodiment, the ceramic powder granulation device further includes a drying mechanism 60, which includes a drying fan 61 and an air supply duct 62. The drying fan 61 is disposed on the base 20. One end of the air supply duct 62 is connected to the air supply port of the drying fan 61, and the other end is connected to the stirring cavity 511 and fixed to the top of the stirring cavity 511. Hot air can be generated by the drying fan 61 and transported into the stirring cavity 511 through the air supply duct 62 to dry the ceramic powder, thereby facilitating the subsequent granulation of the granulator 10 to improve the granulation quality and efficiency.
[0038] Furthermore, in this embodiment, the base 20 includes a support platform 21 and support legs 22 arranged around the bottom of the support platform 21 .
[0039] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.
Claims
1. A ceramic powder granulation device, characterized in that: include: A granulator, used to convert ceramic powder into ceramic granules, wherein the input end of the granulator is used to feed ceramic powder and the output end of the granulator is used to discharge the ceramic granules; A base is provided below the granulator and is fixedly connected to the granulator; a discharge pipe, passing through the base, and one end of the discharge pipe being connected to the output end of the granulator; A particle screening mechanism is provided below the base and connected to the other end of the discharge pipe to screen the ceramic particles; wherein the particle screening mechanism includes: A screening box having a first discharge port and a second discharge port; a vibration motor, disposed outside the screening box, the vibration motor having a vibration end, the vibration end entering into the screening box; A screening frame is arranged in the screening box so that the other end of the discharge pipe is aligned with the screening frame; one side of the screening frame is also connected to the vibration end and can be driven to vibrate by the vibration motor; the bottom of the screening frame is provided with a screening net, the screening net has screening holes, and one side of the screening frame has a screening material outlet adapted to the first discharge port; when the screening frame vibrates, ceramic particles with a diameter larger than the screening hole flow to the first discharge port, and ceramic particles with a diameter smaller than the screening hole pass through the screening net and flow to the second discharge port.
2. The ceramic powder granulating device according to claim 1, characterized in that: The particle screening mechanism also includes a guide plate, which is provided in plurality and is arranged obliquely at the top of the screening frame along the circumference of the screening frame, so that the ceramic particles flowing out of the discharge pipe can enter the screening frame through the guide plate.
3. The ceramic powder granulating device according to claim 2, characterized in that: The particle screening mechanism further includes connecting springs. Along the vibration direction of the screening frame, a plurality of the connecting springs are arranged between the screening frame and the inner wall of the screening box.
4. The ceramic powder granulating device according to claim 1, characterized in that: In the height direction of the screening box, the first discharge port is located above the second discharge port.
5. The ceramic powder granulating device according to any one of claims 1 to 4, characterized in that: The ceramic powder granulating device further includes a stirring mechanism, which is arranged on the top of the granulator and is used to stir the ceramic powder; wherein the stirring mechanism includes: A stirring box having a stirring cavity, the bottom of which is connected to the top of the granulator; A feeding pipe is provided at the top of the mixing box and is used to feed ceramic powder into the mixing box; A stirring motor is arranged on the top of the stirring box, and the rotating shaft of the stirring box enters the stirring box; A rotating rod is arranged in the stirring cavity along the vertical direction of the stirring box and is fixedly connected to the rotating shaft of the stirring box; The stirring part is distributed along the circumference of the rotating rod and is fixedly connected to the rotating rod.
6. The ceramic powder granulating device according to claim 5, characterized in that: The stirring part includes a top stirring blade and a bottom stirring blade, wherein the top stirring blade has multiple blades, which are evenly distributed along the circumference of the rotating rod and fixed to the top of the rotating rod; the bottom stirring blade has multiple blades, which are evenly distributed along the circumference of the rotating rod and fixed to the bottom of the rotating rod.
7. The ceramic powder granulating device according to claim 6, characterized in that: The stirring portion further includes a plurality of scrapers, the top of each scraper being fixedly connected to a side of the top stirring blade away from the rotating rod, and the bottom of each scraper being fixedly connected to a side of the bottom stirring blade away from the rotating rod.
8. The ceramic powder granulating device according to claim 7, characterized in that: The stirring portion further includes a spiral blade sleeved on the rotating rod, the spiral blade being located between the top stirring blade and the bottom stirring blade, and a radial distance between the spiral blade and the rotating rod being smaller than a radial distance between the scraper and the rotating rod.
9. The ceramic powder granulating device according to claim 5, characterized in that: The ceramic powder granulating device also includes a drying mechanism, which includes a drying fan and an air supply duct. The drying fan is arranged on the base, one end of the air supply duct is connected to the air supply port of the drying fan, and the other end is connected to the stirring cavity.
10. The ceramic powder granulating device according to claim 1, characterized in that: The base includes a support platform and support legs arranged around the bottom of the support platform.