A suspension stirred tank
Patent Information
- Application Number
- CN202522324812.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-03
AI Technical Summary
[0003]在混悬液生产流程中,混悬液配置完成后会进入容器中等待罐装,由于罐装过程往往持续时间较长,在此期间,暂存容器中的混悬液处于静置状态,固体颗粒会出现沉降并聚集粘结于容器底部现象,导致所分装出的产品中成分含量不均,影响产品质量,为应对这一问题,目前常见的做法是在容器中加装搅拌结构来维持固体颗粒的悬浮,但现有技术中的这类搅拌结构多采用单一的搅拌桨形式,实际工作中存在明显的搅拌死角问题(如容器底部边角、近容器侧壁区域等),对于固体颗粒的维持悬浮效果较差
配置完成的混悬液进入到罐体进行罐装作业,罐装过程中,通过搅拌组件对混悬液进行搅拌,结合剪切组件从罐体底侧持续循环抽取混悬液进行剪切分散,以及通过刮板转动对罐体内壁进行刮动,防止固体颗粒粘结于罐体内壁上,在刮板转动的过程中,流经穿过通槽的液流带动桨叶转动,通过桨叶转动对混悬液起到协同搅动的作用效果,从而使得混悬液中的固体颗粒维持良好的悬浮状态,保证混悬液罐装质量统一。
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Figure CN224793362U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of suspension production technology, specifically a suspension stirring tank. Background Technology
[0002] Suspension is an important drug dosage form. In a suspension, solid components are uniformly suspended in a liquid matrix, and when left to stand, two or more layers may separate. Therefore, suspensions need to be shaken frequently to maintain the uniform distribution of the components.
[0003] In the suspension production process, after the suspension is prepared, it enters a container to await bottling. Since the bottling process often takes a long time, during this period, the suspension in the temporary storage container is in a static state, and solid particles will settle and aggregate at the bottom of the container, resulting in uneven component content in the packaged product and affecting product quality. To address this issue, the common practice is to add a stirring structure to the container to maintain the suspension of solid particles. However, the existing stirring structures mostly use a single stirring paddle, which has obvious dead zones in actual operation (such as the bottom corners of the container, the area near the side wall of the container, etc.), resulting in poor suspension maintenance of solid particles.
[0004] Therefore, this utility model proposes a suspension mixing tank to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a suspension mixing tank to solve the above-mentioned problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A suspension mixing tank includes a tank body and a stirring assembly for stirring the suspension, the mixing tank further comprising: A shearing assembly used for continuously circulating and extracting suspensions from the bottom of the tank for shearing and dispersion. An L-shaped scraper is rotatably installed inside the tank. The outer edge of the scraper contacts and adheres to the inner wall and bottom of the tank. Multiple through grooves are arranged on the scraper, and blades are rotatably installed in the through grooves.
[0007] In one alternative embodiment: the stirring assembly includes a shaft disposed in a tank and a driving component for driving the shaft to rotate, wherein stirring blades are evenly distributed on the shaft.
[0008] In one alternative: the scraper is fixedly connected to the shaft and performs scraping action as the shaft rotates.
[0009] In one alternative embodiment: the shearing assembly includes a hollow spraying disc mounted on a shaft and a circulating pump located at the bottom of the tank for pumping suspension into the spraying disc. The spraying disc has drainage holes arranged circumferentially on its side, and shearing rods are evenly distributed around the spraying disc in the tank.
[0010] In one alternative: the shaft body is provided with a flow channel communicating with the spraying disc, and a liquid guide pipe is provided between the output end of the circulating pump and the end of the flow channel away from the spraying disc, and the end of the liquid guide pipe is rotatably connected to the flow channel.
[0011] In one alternative: the outer edge of the scraper is provided with an adhesive strip, and the outer edge of the scraper is in contact with and adhered to the inner wall and bottom of the tank through the adhesive strip.
[0012] Compared with the prior art, the beneficial effects of this utility model embodiment are as follows: The prepared suspension enters the tank for filling. During the filling process, the suspension is stirred by the stirring component, and the suspension is continuously circulated from the bottom of the tank by the shearing component for shearing and dispersion. The inner wall of the tank is scraped by the rotating scraper to prevent solid particles from sticking to the inner wall of the tank. As the scraper rotates, the liquid flow through the channel drives the paddle to rotate, and the rotation of the paddle has a synergistic stirring effect on the suspension, thereby maintaining the solid particles in the suspension in a good suspended state and ensuring the uniformity of the filling quality of the suspension.
[0013] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.
[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle.
[0017] Figure 3 This is a front view of the scraper in an embodiment of this utility model.
[0018] Figure 4 for Figure 1 Enlarged view of section B in the middle.
[0019] Figure 5 This is a schematic diagram showing the arrangement between the shaft and the spraying disc in an embodiment of this utility model.
[0020] Figure 6 This is a bottom view of the spraying disc and the shearing rod in an embodiment of this utility model.
[0021] Figure reference numerals: 1-Tank body, 2-Agitator assembly, 201-Shaft, 202-Agitator blade, 203-Drive component, 3-Shearing assembly, 301-Circulation pump, 302-Spraying plate, 303-Drain hole, 304-Flow channel, 305-Shearing rod, 4-Scraper, 5-Through groove, 6-Impeller, 7-Rubber strip. Detailed Implementation
[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0023] Please see Figures 1-3 A suspension mixing tank includes a tank body 1 and a mixing assembly 2 for mixing the suspension. The tank body 1 has a feed inlet and a filling outlet at its top and bottom, respectively. The mixing tank also includes: Shearing assembly 3 is used to continuously circulate and extract suspension from the bottom side of tank 1 for shearing and dispersion. A scraper 4, which is L-shaped and is rotatably installed in the tank body 1, is attached to the inner wall and bottom of the tank body 1 by its outer side. A plurality of through grooves 5 are also arranged on the scraper 4, and a paddle 6 is rotatably installed in the through grooves 5.
[0024] The prepared suspension enters tank 1 for filling. During the filling process, the suspension is stirred by the stirring component 2, and the suspension is continuously drawn from the bottom of tank 1 by the shearing component 3 for shearing and dispersion. The inner wall of tank 1 is scraped by the rotating scraper 4 to prevent solid particles from sticking to the inner wall of tank 1. As the scraper 4 rotates, the liquid flow passing through the channel 5 drives the paddle 6 to rotate. The rotation of the paddle 6 plays a synergistic role in stirring the suspension, thereby maintaining the solid particles in the suspension in a good suspended state and ensuring the uniformity of the filling quality of the suspension.
[0025] Furthermore, the outer side of the scraper 4 is provided with a rubber strip 7. The outer side of the scraper 4 is in contact with and adheres to the inner wall and bottom side of the tank 1 through the rubber strip 7. The rubber strip 7 has a certain hardness and can scrape off solid particles normally. By setting the rubber strip 7, scratches are avoided on the inner wall and bottom side of the tank 1.
[0026] Please see Figure 1 In one embodiment of the present invention, the stirring assembly 2 includes a shaft 201 disposed in the tank 1 and a driving component 203 for driving the shaft 201 to rotate (the driving component 203 is a servo motor, a geared motor, etc. in the prior art), and stirring blades 202 are evenly distributed on the shaft 201. The scraper 4 is fixedly connected to the shaft 201 and performs scraping action as the shaft 201 rotates.
[0027] In this embodiment, the drive unit 203 drives the shaft 201 to rotate, thereby driving the stirring blade 202 and the scraper 4 to rotate, thereby stirring the suspension and scraping the inner wall of the tank 1 by rotating the scraper 4.
[0028] Please see Figure 1 , Figures 4-6 In one embodiment of the present invention, the shearing assembly 3 includes a spraying disc 302 disposed on the shaft 201 and hollow inside, and a circulation pump 301 disposed on the bottom side of the tank 1 for pumping suspension into the spraying disc 302. The spraying disc 302 is provided with drainage holes 303 circumferentially arranged on its side. Shearing rods 305 are also evenly arranged around the spraying disc 302 in the tank 1. The shaft 201 is provided with a flow channel 304 that communicates with the spraying disc 302. A liquid guide pipe (the liquid guide pipe is a flexible hose) is provided between the output end of the circulating pump 301 and the end of the flow channel 304 away from the spraying disc 302. The end of the liquid guide pipe is rotatably connected to the flow channel 304 (such as through a rotary joint, or other structures, which are not limited in this embodiment).
[0029] In this embodiment, when the drive shaft 201 rotates, the drive component 203 also drives the spraying disc 302 to rotate. The circulating pump 301 continuously circulates and draws the suspension from the bottom side of the tank 1 and sends it into the spraying disc 302. Under the action of centrifugal force, the suspension is thrown out in a circumferential direction to impact the shearing rod 305. The shearing rod 305 plays a role in shearing and dispersing the solid particles in the thrown suspension, eliminating the tendency of solid particles to aggregate.
[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A suspension mixing tank, comprising a tank body (1) and a mixing assembly (2) for mixing the suspension, characterized in that, The mixing tank also includes: Shearing assembly (3) for continuously circulating and extracting suspension from the bottom side of tank (1) for shearing and dispersion. A scraper (4) is rotatably installed in the tank (1) and is L-shaped. The outer side of the scraper (4) is in contact with the inner wall and bottom side of the tank (1). Multiple through grooves (5) are arranged on the scraper (4), and blades (6) are rotatably installed in the through grooves (5).
2. The suspension mixing tank according to claim 1, characterized in that, The stirring assembly (2) includes a shaft (201) disposed in the tank (1) and a driving component (203) for driving the shaft (201) to rotate. Stirring blades (202) are evenly distributed on the shaft (201).
3. The suspension mixing tank according to claim 2, characterized in that, The scraper (4) is fixedly connected to the shaft (201) and performs scraping action as the shaft (201) rotates.
4. The suspension mixing tank according to claim 2, characterized in that, The shearing assembly (3) includes a spraying disc (302) disposed on the shaft (201) and hollow inside, and a circulation pump (301) disposed on the bottom side of the tank (1) for pumping suspension into the spraying disc (302). The spraying disc (302) is provided with drainage holes (303) circumferentially arranged on the side. Shearing rods (305) are also evenly arranged around the spraying disc (302) in the tank (1).
5. The suspension mixing tank according to claim 4, characterized in that, The shaft (201) is provided with a flow channel (304) that communicates with the spraying plate (302). A liquid guide pipe is provided between the output end of the circulating pump (301) and the end of the flow channel (304) away from the spraying plate (302), and the end of the liquid guide pipe is rotatably connected to the flow channel (304).
6. The suspension mixing tank according to claim 1, characterized in that, The outer side of the scraper (4) is provided with a rubber strip (7), and the outer side of the scraper (4) is in contact with the inner wall and bottom side of the tank (1) through the rubber strip (7).