Pseudo-boehmite synthesis aging device
By designing the uniform feeder, stirring components, and turning components of the pseudo-boehmite synthesis aging device, the problem of poor mixing effect caused by uneven material distribution was solved, achieving uniform material distribution and mixing, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHIPING YUTIAN CATALYTIC MATERIALS CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-28
AI Technical Summary
During the aging process of pseudoboehmite, uneven addition of new materials leads to poor mixing, affecting product quality, and the stirring process is time-consuming and uncontrollable.
Design a pseudo-boehmite synthesis aging device, including a feed homogenizer, a stirring component, and a turning component. The feed homogenizer ensures uniform material distribution, the stirring component stirs the material in different directions using large and small stirring blades, and the turning component turns the material vertically to ensure uniform mixing.
It achieves uniform distribution and mixing of materials, shortens mixing time, and improves product quality and production efficiency.
Smart Images
Figure CN224167525U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pseudoboehmite production technology, and in particular relates to a pseudoboehmite synthesis and aging device. Background Technology
[0002] Boehmite, also known as monohydrate alumina or pseudo-monohydrate diatomite, is a non-toxic, tasteless, odorless, white colloidal (wet) or powder (dry) substance with high crystal purity, good colloidal properties, strong adhesion, high specific surface area, and large pore volume. Its aqueous state is a thixotropic gel.
[0003] Currently, in the carbonization process of pseudoboehmite production, a low-temperature, low-concentration industrial sodium aluminate solution is used as raw material. High-concentration CO2 gas is rapidly introduced as a precipitant to neutralize and form a gel. The gelation temperature and the final pH value are controlled. Then, after heating, aging, washing, and drying, ordinary pseudoboehmite products are obtained.
[0004] In the aforementioned aging process for boehmite production, the process is carried out within an aging unit. This involves first synthesizing the material in a tank and then aging it. Considering that the raw materials cannot be added to the aging tank all at once, the synthesis and feeding time is relatively long, affecting product quality. In existing technologies, two auxiliary tanks are typically added to the aging unit for convenient material feeding. While this method can ensure product molding quality to some extent, there is still a possibility of uneven feeding of materials from the auxiliary tanks into the aging unit. Although subsequent stirring will mix the newly added material with the existing material, the unevenness of the material's fall requires considerable time for stirring. Furthermore, the mixing effect and stirring process are uncontrollable due to the unevenness of the material, resulting in uneven boehmite grain size. Simultaneously, the uniformity of the material particles at the bottom of the aging unit is also crucial. If the material is not fully mixed and exhibits differences upon discharge, it will also affect product quality. Utility Model Content
[0005] This invention addresses the technical problems existing in the above-mentioned pseudoboehmite grain processing process by proposing a pseudoboehmite synthesis aging device that is reasonably designed, simple in structure, easy to process, and capable of achieving uniform distribution of newly added materials to ensure relatively consistent stirring process, reducing the impact of uneven addition of new and old materials on the aging process, and significantly improving the working process. At the same time, it homogenizes the materials to be output to ensure uniformity of material output, guarantee product quality, and meet the usage requirements.
[0006] To achieve the above objectives, the present invention employs a pseudo-boehmite synthesis aging device, comprising an aging device body, an aging tank, a rotating shaft inside the aging tank, a feeding auxiliary tank above the aging tank, a heating component inside the aging tank, a uniform feeder sleeved on the outside of the rotating shaft above the aging tank, and a stirring component on the rotating shaft below the uniform feeder. The stirring component includes a sleeve, a first support rod on the outside of the sleeve, a large arc-shaped stirring blade at the end of the first support rod located in the middle, and the other end of the first support rod connected to the end of the first support rod on the adjacent side. A small spiral-shaped stirring blade is also provided on the first support rod located inside the large stirring blade and in the middle, and a second support rod is provided at the end of the small stirring blade and connected to the sleeve. A turning and stirring component is provided on the rotating shaft below the aging tank.
[0007] Preferably, the feeder includes a disc body, on which multiple wedge-shaped guide strips are evenly distributed. The end face of the disc body between two adjacent guide strips is inclined from the inside to the outside, and a material drop hole is opened inside.
[0008] Preferably, the mixing assembly includes a connecting sleeve connected to the rotating shaft, and the outer side of the connecting sleeve is provided with a mixing plate designed in the shape of an 8, and the mixing plate is provided with a plurality of material conveying holes evenly distributed inside.
[0009] Preferably, the heating component includes an input pipe, a circulation pipe is provided on one side of the input pipe, and an output pipe is provided on the upper outer side of the circulation pipe.
[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0011] This utility model provides a pseudo-boehmite synthesis aging device. Utilizing a uniform feeder, the newly added material is evenly distributed within the aging tank, ensuring a relatively uniform drop position and reducing the possibility of accumulation. This makes the subsequent mixing process smoother, significantly shortening the mixing time and saving time. Furthermore, the included mixing components, depending on the orientation of the large and small mixing blades, can agitate the material at different locations within the aging tank to varying degrees—such as external dispersion and internal concentration, or vice versa—disrupting the material's flow direction for more uniform mixing and ensuring optimal molding results. The installed mixing components vertically tumble the materials to improve the mixing effect. Simultaneously, during the material discharge process, they ensure greater homogenization, guaranteeing output quality, ensuring processing progress, and meeting usage requirements. This device is rationally designed, simple in structure, and easy to manufacture. It can achieve uniform distribution of newly added materials, ensuring a relatively consistent mixing process and reducing the impact of uneven addition of new and old materials on the aging process, thus significantly improving the working efficiency. Furthermore, it homogenizes the materials before discharge to ensure uniform material discharge, guaranteeing product quality and meeting usage requirements. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Fig. 1 This is a schematic diagram of a pseudo-boehmite synthesis and aging device.
[0014] Fig. 2 A front view of a pseudo-boehmite synthesis and aging device;
[0015] Fig. 3 This is a schematic diagram of the material equalizer.
[0016] Fig. 4 This is a schematic diagram of the stirring assembly.
[0017] In the above figures, 1. Aging tank; 11. Rotating shaft; 2. Feeding auxiliary tank; 3. Heating component; 31. Input pipe; 32. Circulation pipe; 33. Output pipe; 4. Distributor; 41. Disc; 42. Guide bar; 43. Material drop hole; 5. Stirring component; 51. Sleeve; 52. First support rod; 53. Large stirring blade; 54. Small stirring blade; 55. Second support rod; 6. Tilting component; 61. Connecting sleeve; 62. Tilting plate; 621. Feeding hole. Detailed Implementation
[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0020] Examples, such as Figs. 1-4As shown, a pseudo-boehmite synthesis aging device includes an aging device body, which includes an aging tank 1. A rotating shaft 11 is installed inside the aging tank 1. A feeding auxiliary tank 2 is installed above the aging tank 1. A heating component 3 is installed inside the aging tank 1. The above-mentioned devices are all existing mature and conventional technologies. The specific setup and usage process will not be described in detail. This embodiment aims to solve the problem of uneven addition of new materials to the aging tank 1 in the prior art. Specifically, a uniform feeder 4 is sleeved on the outside of the rotating shaft 11 located above the aging tank 1. The uniform feeder 4 is sleeved on the outside of the rotating shaft 11 and is detachably installed inside the aging tank 1. When stirring is carried out in the aging tank 1, it will not affect the uniform distribution of materials. By using the uniform feeder 4, the newly added materials are evenly distributed in the aging tank 1, making their falling position relatively uniform, reducing the possibility of accumulation and falling, and making the subsequent stirring process smoother, greatly shortening the stirring process and saving time and costs.A stirring assembly 5 is mounted on the rotating shaft 11 located below the equalizer 4. The stirring assembly 5 includes a sleeve 51, with a first support rod 52 on the outer side of the sleeve 51. A large, arc-shaped stirring blade 53 is mounted at the end of the first support rod 52 located in the middle position, and the other end of the blade is connected to the end of the first support rod 52 on the adjacent side. A small, spiral-shaped stirring blade 54 is also mounted on the first support rod 52 located in the middle position inside the large stirring blade 53. A second support rod 55 is mounted at the end of the small stirring blade 54 and is connected to the sleeve 51. It should be further explained that the two large stirring blades 53 and the two small stirring blades 54 are symmetrically arranged about the first support rod 52. The two large stirring blades 53 are arranged vertically as a group, with one end of each blade resting on the first support rod 52 located in the middle. The other two ends are connected to the other two first support rods 52 according to their arc angles. There are two groups of large stirring blades 53 arranged sequentially. When the rotating shaft 11 rotates in accordance with the rotation of the two large stirring blades 53, it can stir the material in a separated state. Conversely, when the rotation direction is reversed, the two large stirring blades 53 will gather the materials in a combined manner, and work with the small stirring blades 54 to mix the materials, ensuring a good mixing effect. The small stirring blades 54 are set up in the same way as the large stirring blades 53, except that their connection points are symmetrical about the first support rod 52. That is, when the large stirring blades 53 are separating and stirring, the small stirring blades 54 are combining and stirring; conversely, when the large stirring blades 53 are combining and stirring, the small stirring blades 54 are separating and stirring. The stirring mechanism, depending on the different directions of the large stirring blade 53 and the small stirring blade 54, can stir the material in different positions in the aging tank 1 to different degrees, such as external dispersion and internal mixing or external mixing and internal dispersion, to disrupt the flow direction of the material, making it more uniformly mixed and ensuring the molding effect. The rotating shaft 11 located below the aging tank 1 is equipped with a stirring component 6, which stirs the material vertically to improve the mixing effect of the material. At the same time, during the material discharge process, it makes the material more homogeneous, ensuring the output quality of the material, ensuring the processing progress, and meeting the usage requirements.
[0021] In the above process: the uniform feeder 4 evenly distributes the newly added material within the aging tank 1, ensuring a relatively uniform drop position and reducing the possibility of accumulation. This makes the subsequent mixing process smoother, significantly shortening the mixing time and saving time. The mixing components 5, depending on the orientation of the large mixing blades 53 and small mixing blades 54, can mix the material at different locations within the aging tank 1 to varying degrees, such as either external dispersion and internal concentration or vice versa, disrupting the material's flow direction and ensuring more uniform mixing and optimal molding results. The mixing component 6 vertically mixes the materials to improve the mixing effect. Simultaneously, it homogenizes the materials during the discharge process, ensuring output quality, guaranteeing processing progress, and meeting usage requirements. This device is rationally designed, simple in structure, and easy to manufacture. It can achieve uniform distribution of newly added materials, ensuring a relatively consistent mixing process and reducing the impact of uneven addition of new and old materials on the aging process, thus significantly improving the working efficiency. Furthermore, it homogenizes the materials before discharge to ensure uniform material discharge, guaranteeing product quality and meeting usage requirements.
[0022] To ensure even distribution of newly added material and uniform mixing with the preceding material, thus shortening the subsequent mixing process, the equalizer 4 includes a disc 41. Multiple wedge-shaped guide strips 42 are evenly distributed above the disc 41. The end face of the disc 41 between adjacent guide strips 42 is inclined from the inside out, and a material drop hole 43 is provided inside this area. Specifically, when material from the feeding auxiliary tank 2 is conveyed down, the material falls onto the equalizer 4. On one hand, the material follows the direction between adjacent guide strips 42... The material flows through the area and falls through the discharge hole 43 during the flow. The inclined surface of the disc 41 makes the material fall more smoothly. At the same time, when it falls into the aging tank 1 through the discharge hole 43, it is more uniform. This also provides convenient conditions for the stirring component 5 to agitate the material. In other words, the newly added material can be evenly distributed in the aging tank 1 to a certain extent by the uniform feeder 4, so that its falling position is relatively uniform, reducing the possibility of it accumulating and falling. The subsequent stirring process is also smoother, greatly shortening the stirring process and saving time and costs.
[0023] To achieve homogenization and mixing of the material located at the bottom of the aging tank 1, ensuring more uniform output, the mixing assembly 6 includes a connecting sleeve 61 connected to the rotating shaft 11. The outer side of the connecting sleeve 61 is provided with a figure-eight shaped mixing plate 62. Multiple material conveying holes 621 are evenly distributed within the mixing plate 62. Specifically, the mixing plate 62, viewed from the front, has a figure-eight shape and a certain degree of twisting effect. Its purpose is twofold: firstly, to mix the material passing through during rotation, that is, to make the material be mixed by tumbling. The stirring and mixing effect is significant. Secondly, it can guide the agitated material to the rear and mix it with other materials. As for the established feed hole 621, it can not only improve the smoothness of the rotation process, but also reorganize the flow path of the material, thereby ensuring the mixing effect between materials. The stirring component 6 is set at a lower position and is mainly for the output process of the synthesized material. That is, when the material is discharged, according to its stirring effect on the material, it can improve the homogeneity of the mixture, ensure that the discharged material particles are uniform, and ensure product quality.
[0024] To ensure the aging device has a heating function, the heating component 3 includes an input pipe 31, a circulation pipe 32 on one side of the input pipe 31, and an output pipe 33 on the upper outer side of the circulation pipe 32. Specifically, the circulation pipe 32 is installed in the jacketed aging tank 1 from bottom to top. The input pipe 31 receives an external heat source, such as hot steam or hot water, and inputs it into the circulation pipe 32. Its bottom-up operation causes the temperature in the aging tank 1 to rise, and finally it is discharged through the output pipe 33, completing the heating process of the aging device, ensuring the synthesis process of the pseudoboehmite particles, and meeting the usage requirements.
[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A pseudo-boehmite synthesis aging device, comprising an aging device body, the aging device body including an aging tank, a rotating shaft disposed inside the aging tank, and a feeding auxiliary tank disposed above the aging tank, characterized in that, The aging tank is equipped with a heating component. A material equalizer is fitted on the outside of the rotating shaft above the aging tank. A stirring component is mounted on the rotating shaft below the material equalizer. The stirring component includes a sleeve. A first support rod is mounted on the outside of the sleeve. A large, arc-shaped stirring blade is mounted at the end of the first support rod located in the middle position, and the other end of the blade is connected to the end of the first support rod on the adjacent side. A small, spiral-shaped stirring blade is mounted on the first support rod located inside the large stirring blade and in the middle position. A second support rod is mounted at the end of the small stirring blade and connected to the sleeve. A turning and stirring component is mounted on the rotating shaft below the aging tank.
2. The pseudo-boehmite synthesis aging device according to claim 1, characterized in that, The feed equalizer includes a disc body, on which multiple wedge-shaped guide strips are evenly distributed. The end face of the disc body between two adjacent guide strips is inclined from the inside to the outside, and a material drop hole is opened inside the feed equalizer.
3. The pseudo-boehmite synthesis aging device according to claim 2, characterized in that, The mixing assembly includes a connecting sleeve connected to a rotating shaft. The outer side of the connecting sleeve is provided with a mixing plate designed in the shape of an 8. Multiple material conveying holes are evenly distributed inside the mixing plate.
4. The pseudoboehmite synthesis aging device according to claim 3, characterized in that, The heating component includes an input pipe, a circulation pipe on one side of the input pipe, and an output pipe on the upper outer side of the circulation pipe.