A mixing device for raw materials used in sintering high-purity mullite
By combining four independent raw material mixing cylinders with rotation and revolution modes, the problems of uneven mixing and powder residue of mullite raw materials are solved, achieving efficient and low-noise mullite raw material mixing, and improving operation efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JINGXIN NEW MATERIAL
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-03
AI Technical Summary
The existing mullite raw material mixing device has an unsatisfactory mixing effect and poor powder flowability, resulting in the need for manual intervention for residual material at the bottom, which reduces the efficiency of operation.
It adopts four independent raw material mixing cylinders, each equipped with a stirring mechanism. Combining rotation and revolution motion modes, it drives the drive plate and mixing frame through a reducer to achieve complex three-dimensional motion. The outside of the mixing cylinder is wrapped with a double-layer soundproof protective cover to reduce noise, and the inclined design facilitates material discharge.
It significantly improves mixing uniformity and efficiency, reduces equipment noise, avoids residual materials, and enhances operational efficiency and safety.
Smart Images
Figure CN224446364U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mullite processing equipment, specifically a mixing device for raw materials used in sintering high-purity mullite. Background Technology
[0002] In 1983, FJKlug et al. synthesized mullite transparent ceramics using the sol-gel method and studied their infrared transmission properties, obtaining infrared-transparent mullite ceramics. A Chinese patent with publication number CN114644513A disclosed a method for preparing infrared-transparent mullite ceramics. In the process of preparing infrared-transparent mullite ceramics, it is necessary to prepare mixed powders, which requires the use of mixing and stirring equipment. The existing raw material mixing device is a conventional stirrer, which usually uses a motor to drive the stirring paddle on the stirring shaft to stir and mix the powders. Stirring is achieved by turning the powders. The stirring tank and stirring shaft are fixed, which usually requires a long stirring time and the mixing effect is not ideal.
[0003] To address the aforementioned issues, a search revealed Chinese patent CN218590345U, which discloses a raw material mixing device for preparing infrared-transparent mullite ceramics. The device includes a base and a mixing tank. An upper housing is fixed to the upper part of the base via a support plate. A vertically arranged rotating shaft is rotatably connected to the upper housing. A drive mechanism for rotating the rotating shaft is located inside the upper housing. A stirring shaft is connected to the lower end of the rotating shaft via a universal joint. The mixing tank is located at the lower part of the upper housing.
[0004] Although the above-mentioned device can simultaneously shake and stir the powder, greatly improving the mixing efficiency, in actual use, the powder has poor flowability. The discharge port at the bottom of the mixing drum alone cannot fully discharge the powder. This means that when discharging the powder, some material cannot be completely released from the bottom of the mixing drum. The residual material at the bottom requires manual intervention, such as tapping the drum wall or disassembling parts, to be discharged, increasing non-productive operation time and reducing work efficiency. Utility Model Content
[0005] The purpose of this invention is to provide a mixing device for raw materials used in sintering high-purity mullite, so as to solve the defects mentioned in the background art.
[0006] To achieve the above objectives, a mixing device for raw materials used in sintering high-purity mullite is provided, comprising a stabilizing base, a reducer fixedly installed inside the stabilizing base, a drive disc fixedly connected to the output shaft of the reducer, a mixing frame installed on the outer side of the drive disc, mounting holes provided on the mixing frame, a raw material mixing cylinder inserted and fixed inside the mounting holes, a top cover fixedly installed on the top of the raw material mixing cylinder, a stirring mechanism provided on the raw material mixing cylinder, a bottom cover installed on the bottom of the raw material mixing cylinder, an upper soundproof protective cover covering the outer side of the raw material mixing cylinder, and a lower soundproof protective cover provided at the bottom of the upper soundproof protective cover.
[0007] Furthermore, the drive disk is rectangular, and a mixing frame is fixedly installed on each of the four outer surfaces of the drive disk. Each of the four sets of mixing frames has a mounting hole, and a raw material mixing cylinder is installed inside each of the four sets of mounting holes. The four sets of raw material mixing cylinders are centrally symmetrical about the central axis of the drive disk.
[0008] Furthermore, each of the four sets of hybrid frames is equipped with a limit seat at its bottom, and the surface of the stabilizer is provided with a ring-shaped limit track, the size of which is compatible with the size of the limit track and the limit seat.
[0009] Furthermore, the limiting seat is slidably disposed inside the limiting track, and the cross-sectional shape of the limiting track and the limiting seat is an isosceles trapezoid.
[0010] Furthermore, both the upper and lower soundproof protective covers are conical in shape, and soundproofing felt is fixedly installed on the inner wall of the upper soundproof protective cover and the outer wall of the lower soundproof protective cover. The upper and lower soundproof protective covers are evenly wrapped around the outside of the four sets of raw material mixing cylinders.
[0011] Furthermore, five sets of connecting frames are evenly installed at the bottom of the upper soundproof protective cover. The lower soundproof protective cover is fixedly installed at the end of the connecting frame away from the upper soundproof protective cover. The connecting frame is inclined and is mounted on the stable seat by a bracket.
[0012] Furthermore, all four mixing frames are inclined and vertically distributed between the mixing frames and the raw material mixing cylinders, and the four raw material mixing cylinders are of the same size.
[0013] Furthermore, all four sets of raw material mixing cylinders discharge material through the bottom cover. The bottom cover has four sets of perforations evenly distributed, and the bottom circumference of the raw material mixing cylinder has four sets of screw holes evenly distributed. The fixing bolts pass through the perforations and are screwed into the screw holes. The inclination angle of the raw material mixing cylinder is 45 degrees.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model ensures that the mixing process of each group of raw materials is independent and does not interfere with each other, thus guaranteeing the independence and stability of the mixing. The mullite raw materials form more sufficient convection and shearing action in the cylinder, achieving uniform mixing. While achieving rotational mixing, the raw materials inside the mixing cylinder are also mixed by rotation, and the drive disk and mixing frame are driven by the reducer to achieve revolution mixing. The dual motion mode of rotation and revolution can make the raw materials form a more complex three-dimensional motion trajectory in the mixing cylinder. Not only can the local shearing and convection mixing in the cylinder be achieved by the rotation of the stirring blades, but the overall revolution of the mixing cylinder can also drive the raw materials to generate a large range of displacement and exchange between different areas, significantly improving the uniformity and efficiency of mixing.
[0016] 2. This utility model uses four sets of raw material mixing cylinders that are wrapped with an upper soundproof protective cover and a lower soundproof protective cover when they rotate. Soundproof felt is fixedly installed on the inner wall of the upper soundproof protective cover and the outer wall of the lower soundproof protective cover. Through the design of double-layer protective cover combined with soundproof felt, the mechanical noise generated by the rotation of the mixing cylinder and the operation of the stirring mechanism can be effectively blocked from spreading outward, significantly reducing the operating noise of the equipment and improving the working environment.
[0017] 3. This utility model uses a 45-degree inclined raw material mixing cylinder. After the raw material mixing cylinder has been mixed and discharged, the bottom cover can be removed. Under the action of gravity, the raw material inside the mixing cylinder can be fully released, avoiding residual material inside the mixing cylinder. No manual intervention is required, reducing non-productive operation time and improving work efficiency. Attached Figure Description
[0018] Figure 1 This is a front view schematic diagram of the structure of this utility model;
[0019] Figure 2 for Figure 1 A bottom view;
[0020] Figure 3 for Figure 1 Top view;
[0021] Figure 4 for Figure 1 Rear view;
[0022] Figure 5 for Figure 1 Cross-sectional view.
[0023] The following are the labels in the diagram: 1. Stabilizer; 2. Reducer; 3. Limit seat; 31. Limit rail; 4. Mixing frame; 41. Mounting hole; 42. Drive disc; 5. Raw material mixing cylinder; 51. Bottom cover; 52. Top cover; 53. Stirring mechanism; 6. Upper soundproof cover; 61. Lower soundproof cover; 62. Connecting frame. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-5 This utility model provides a mixing device for raw materials used in sintering high-purity mullite, including a stabilizing base 1, a reducer 2 fixedly installed inside the stabilizing base 1, a drive disk 42 fixedly connected to the output shaft of the reducer 2, a mixing frame 4 installed on the outside of the drive disk 42, an installation hole 41 opened on the mixing frame 4, a raw material mixing cylinder 5 inserted and fixed inside the installation hole 41, an upper cover 52 fixedly installed on the top of the raw material mixing cylinder 5, a stirring mechanism 53 installed on the raw material mixing cylinder 5, a bottom cover 51 installed on the bottom of the raw material mixing cylinder 5, an upper soundproof protective cover 6 covering the outside of the raw material mixing cylinder 5, and a lower soundproof protective cover 61 installed at the bottom of the upper soundproof protective cover 6.
[0026] Working Principle: In actual use, the mullite raw materials to be mixed evenly are first put into the four sets of raw material mixing cylinders 5. Each of the four sets of raw material mixing cylinders 5 is equipped with a stirring mechanism 53. The reducer on the stirring mechanism 53 drives the stirring blades located inside the raw material mixing cylinder 5 to rotate, stirring and mixing the materials inside the raw material mixing cylinder 5 evenly. It can mix four sets of raw materials at the same time, improving mixing efficiency. Each set of raw material mixing cylinders 5 is independently equipped with a stirring mechanism 53, which can ensure that the mixing process of each set of raw materials does not interfere with each other, ensuring the independence and stability of the mixing. The mullite raw materials form more sufficient convection and shearing action in the cylinder, achieving uniform mixing. The whole set of equipment has a compact structure and concentrated functions, which is convenient for operation and management, reducing the equipment footprint and manpower input. At the same time, through the standardized operation of mechanical stirring, the mixing quality can be effectively controlled, reducing the risk of uneven mixing that may be caused by manual operation or batch processing, and ensuring the consistency and reliability of mullite raw material mixing.
[0027] The raw materials inside the mixing cylinder 5 undergo both rotational mixing and revolution mixing. Specifically, the external switch of the reducer 2 is activated, causing the output shaft of the reducer 2 to rotate the drive disc 42, which in turn rotates the four mixing frames 4 on it. This causes the four mixing cylinders 5 to rotate. While the raw materials inside the mixing cylinder 5 are rotating and mixing, the reducer 2 drives the drive disc 42 and the mixing frames 4 to achieve revolution mixing. This dual motion mode of rotation and revolution allows the raw materials to form more complex three-dimensional motion trajectories within the mixing cylinder. Not only does the rotation of the stirring blades achieve localized shearing and convection mixing within the cylinder, but the overall revolution of the mixing cylinder also drives the raw materials to undergo large-scale displacement and exchange between different areas, significantly improving the uniformity and efficiency of mixing. The synchronous revolution of the four mixing cylinders with the mixing frames 4 ensures that each group of raw materials is mixed under the same motion pattern, avoiding motion problems caused by individual drives. The rhythm difference ensures the consistency and stability of the mixing process; the revolution motion allows the raw materials in the mixing drum to be subjected to periodic centrifugal force changes, further enhancing the mutual collision and diffusion between raw material particles, which is especially suitable for processing mullite raw materials with large particle size differences or high viscosity, effectively overcoming the mixing dead zone problem that may exist in single rotation mixing; this design realizes the revolution motion of four sets of mixing drums through a set of reducer 2 and the stirring structure built into the raw material mixing drum 5. The structure is simple and compact, reducing the number of independent drive devices, reducing equipment costs and energy consumption, while being easy to operate. It is easy to flexibly control the revolution speed by adjusting the speed of reducer 2 to adapt to different mixing process requirements and improve the versatility and practicality of the device; when the drive disc 42 rotates, the four sets of limit seats 3 at its bottom are slidably set inside the limit seats 3, which can limit and guide the drive disc 42 and the four sets of raw material mixing drums 5 during rotation;
[0028] When the four sets of raw material mixing cylinders 5 are rotating, they are wrapped with an upper soundproof protective cover 6 and a lower soundproof protective cover 61. Soundproof felt is fixedly installed on the inner wall of the upper soundproof protective cover 6 and the outer wall of the lower soundproof protective cover 61. Through the design of double-layer protective covers combined with soundproof felt, the mechanical noise generated by the rotation of the mixing cylinder and the operation of the stirring mechanism can be effectively blocked from spreading outward, significantly reducing the operating noise of the equipment and improving the working environment. The flexible material of the soundproof felt can fit the inner and outer walls of the protective cover, fill any gaps, enhance the sound insulation effect, and absorb some vibration energy, reducing secondary noise caused by equipment vibration. The upper and lower split soundproof protective covers are easy to install and disassemble, facilitating the inspection, cleaning, or raw material feeding of the mixing cylinder. The overall sound insulation design meets the requirements of industrial environmental protection and occupational health, reducing noise damage to the hearing of operators and interference with the surrounding environment, improving the safety and comfort of equipment operation, and the structure is simple and practical, maintaining stable sound insulation performance for a long time without complicated maintenance.
[0029] The raw material mixing cylinder 5 is set at an inclination of 45 degrees. After the raw material mixing cylinder 5 has finished mixing and discharging, the bottom cover 51 can be removed. Under the action of gravity, the raw materials inside the raw material mixing cylinder 5 can be fully released, avoiding the residual materials inside the raw material mixing cylinder 5. No manual intervention is required, reducing non-productive operation time and improving work efficiency.
[0030] In a preferred embodiment, the drive disk 42 is rectangular, and a mixing frame 4 is fixedly installed on each of the four outer surfaces of the drive disk 42. Each of the four sets of mixing frames 4 has a mounting hole 41, and a raw material mixing cylinder 5 is installed inside each of the four sets of mounting holes 41. The four sets of raw material mixing cylinders 5 are centrally symmetrical about the central axis of the drive disk 42.
[0031] As a preferred embodiment, each of the four sets of hybrid frames 4 is provided with a limiting seat 3 at its bottom, and the surface of the stabilizing seat 1 is provided with a ring-shaped limiting track 31, the size of which is compatible with that of the limiting track 31 and the limiting seat 3.
[0032] In a preferred embodiment, the limiting seat 3 is slidably disposed inside the limiting track 31, and the cross-sectional shape of the limiting track 31 and the limiting seat 3 is an isosceles trapezoid.
[0033] As a preferred embodiment, both the upper soundproof cover 6 and the lower soundproof cover 61 are conical in shape. Soundproof felt is fixedly installed on the inner wall of the upper soundproof cover 6 and the outer wall of the lower soundproof cover 61. The upper soundproof cover 6 and the lower soundproof cover 61 are evenly wrapped around the outside of the four sets of raw material mixing cylinders 5.
[0034] As a preferred embodiment, five sets of connecting frames 62 are evenly installed at the bottom of the upper soundproof cover 6. The lower soundproof cover 61 is fixedly installed at the end of the connecting frame 62 away from the upper soundproof cover 6. The connecting frame 62 is inclined and is mounted on the stable seat 1 by a bracket.
[0035] In a preferred embodiment, all four sets of mixing frames 4 are inclined and vertically distributed between the mixing frames 4 and the raw material mixing cylinders 5. The four sets of raw material mixing cylinders 5 are of the same size.
[0036] In a preferred embodiment, all four sets of raw material mixing cylinders 5 discharge material through the bottom cover 51. The bottom cover 51 has four sets of through holes evenly distributed. The bottom circumferential outer wall of the raw material mixing cylinder 5 has four sets of screw holes evenly distributed. The fixing bolts pass through the through holes and are screwed into the inside of the screw holes. The inclination angle of the raw material mixing cylinder 5 is 45 degrees.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mixing device for raw materials of sintered high-purity mullite, comprising a stabilizing seat (1), characterized in that: A speed reducer (2) is fixedly installed inside the stabilizer (1). A drive disk (42) is fixedly connected to the output shaft of the speed reducer (2). A mixing frame (4) is installed on the outside of the drive disk (42). An installation hole (41) is opened on the mixing frame (4). A raw material mixing cylinder (5) is inserted and fixed inside the installation hole (41). A top cover (52) is fixedly installed on the top of the raw material mixing cylinder (5). A stirring mechanism (53) is provided on the raw material mixing cylinder (5). A bottom cover (51) is installed on the bottom of the raw material mixing cylinder (5). An upper soundproof protective cover (6) is covered on the outside of the raw material mixing cylinder (5). A lower soundproof protective cover (61) is provided at the bottom of the upper soundproof protective cover (6).
2. The mixing device for raw material of sintered high-purity mullite according to claim 1, characterized in that: The drive disk (42) is rectangular. A mixing frame (4) is fixedly installed on each of the four outer surfaces of the drive disk (42). Each of the four sets of mixing frames (4) has an installation hole (41). Each of the four sets of installation holes (41) has a raw material mixing cylinder (5) inside. The four sets of raw material mixing cylinders (5) are centrally symmetrical about the central axis of the drive disk (42).
3. The mixing device for raw material of sintered high-purity mullite according to claim 2, characterized in that: The bottom of each of the four sets of hybrid frames (4) is provided with a limiting seat (3), and the surface of the stabilizing seat (1) is provided with a ring-shaped limiting track (31). The size of the limiting track (31) and the limiting seat (3) are compatible.
4. The mixing device for raw material of sintered high-purity mullite according to claim 3, characterized in that: The limiting seat (3) is slidably disposed inside the limiting track (31), and the cross-sectional shape of the limiting track (31) and the limiting seat (3) is an isosceles trapezoid.
5. The mixing device for raw material of sintered high-purity mullite according to claim 1, characterized in that: The upper soundproof cover (6) and the lower soundproof cover (61) are both cone-shaped. Soundproof felt is fixedly installed on the inner wall of the upper soundproof cover (6) and the outer wall of the lower soundproof cover (61). The upper soundproof cover (6) and the lower soundproof cover (61) are evenly wrapped around the outside of the four sets of raw material mixing cylinders (5).
6. The mixing device for raw material of sintered high-purity mullite according to claim 5, characterized in that: Five sets of connecting frames (62) are evenly installed at the bottom of the upper soundproof protective cover (6). The lower soundproof protective cover (61) is fixedly installed at the end of the connecting frame (62) away from the upper soundproof protective cover (6). The connecting frame (62) is inclined and is mounted on the stable seat (1) by a bracket.
7. The mixing device for raw material of sintered high-purity mullite according to claim 3, characterized in that: All four sets of mixing frames (4) are set at an angle, and the mixing frames (4) and the raw material mixing cylinders (5) are vertically distributed. The four sets of raw material mixing cylinders (5) have the same size.
8. The mixing device for raw material of sintered high-purity mullite according to claim 7, characterized in that: All four sets of raw material mixing cylinders (5) are unloaded through the bottom cover (51). The bottom cover (51) has four sets of perforations evenly opened. The bottom circumference of the raw material mixing cylinder (5) has four sets of screw holes evenly opened. The fixing bolts pass through the perforations and are screwed into the inside of the screw holes. The inclination angle of the raw material mixing cylinder (5) is 45 degrees.