Chemical pharmaceutical mixing liquid preparation device capable of preventing precipitation
By designing horizontally distributed mixing tanks and internal mixing components, the problems of low mixing efficiency and sedimentation are solved, achieving efficient mixing and preventing sedimentation, thereby improving the production efficiency and product quality of the chemical pharmaceutical process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING INST OF SCI & TECH
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-28
AI Technical Summary
Existing chemical pharmaceutical mixing and preparation equipment has low mixing efficiency and is prone to precipitation, which affects drug quality and production efficiency.
The system employs a horizontally distributed mixing tank and internal mixing components, including upper and lower spiral mixing blades and scrapers. Bidirectional stirring and scraping prevent sedimentation, ensuring thorough mixing and uniformity of the liquid.
It improves mixing efficiency, prevents sedimentation, ensures drug quality and production efficiency, and reduces the time and cost of sediment removal.
Smart Images

Figure CN224167360U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical pharmaceutical mixing and preparation technology, specifically to a chemical pharmaceutical mixing and preparation device for preventing precipitation. Background Technology
[0002] In the field of chemical pharmaceuticals, mixing and preparation of solutions is a crucial step in the drug manufacturing process. Accurate and uniform mixing of various chemical agents is essential to ensuring the stability and consistency of drug quality.
[0003] Existing chemical pharmaceutical mixing and preparation devices mostly employ a vertical cylindrical mixing tank with a central mixing shaft. This traditional structure has several shortcomings:
[0004] Limited mixing efficiency: The liquid inside the vertical cylindrical mixing tank flows along a relatively simple path during the stirring process, making it difficult to fully mix liquids of different components. The central mixing shaft is usually equipped with only stirring blades in one direction, resulting in an unsatisfactory stirring effect. It is impossible to quickly and evenly mix various agents, thus prolonging the mixing time and reducing production efficiency.
[0005] Precipitation is prone to occur: Due to insufficient flow of liquid within the vertical mixing tank, the reagent easily accumulates at the bottom of the tank under gravity, forming sediment. This problem is particularly severe for reagents with higher density or viscosity. Sedimentation not only affects the homogeneity of the mixture, thus impacting drug quality, but can also lead to blockages and other issues in subsequent production processes, increasing production costs and risks. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] To address the shortcomings of existing technologies, this invention provides a chemical pharmaceutical mixing and preparation device to prevent precipitation, thereby solving the aforementioned problems.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a chemical pharmaceutical mixing and dispensing device for preventing precipitation, comprising a horizontally distributed mixing tank, specifically installed between the tops of a U-shaped support, an L-shaped bracket protruding into the mixing tank on the left side of the U-shaped support, several mixing components evenly installed from left to right on the lower side of the L-shaped bracket, a scraper with horizontal distribution installed at the bottom of the lower side of the L-shaped bracket, the bottom edge of the scraper closely fitting against the bottom wall of the mixing tank, and a reduction motor for driving the mixing tank to rotate is installed on the right side of the U-shaped support.
[0010] Preferably, the mixing assembly includes a drive motor installed inside the cantilever end of the L-shaped bracket, a mixing shaft connected to the output end of the drive motor, and an upper spiral mixing blade, a lower spiral mixing blade, and a mixing rod installed on the mixing shaft.
[0011] Preferably, the upper and lower spiral mixing blades are installed at the upper and lower ends of the mixing shaft respectively, the upper and lower spiral mixing blades have opposite thread directions, and the mixing rods are installed at multiple corresponding central positions on the mixing shaft.
[0012] Preferably, the overall length of the scraper is consistent with the length between the left and right ends of the horizontally placed mixing tank.
[0013] Preferably, the top of the vertical distribution section of the L-shaped bracket is connected to the fixed seat set on the left side of the U-shaped support. The fixed seat is cylindrical in shape and passes through the center of the left end face of the mixing tank.
[0014] Preferably, the output end of the geared motor is connected to the center of the right end face of the mixing tank via a coupling.
[0015] Preferably, the length of the L-shaped bracket cantilever section is slightly less than the distance between the left and right end faces inside the mixing tank.
[0016] Compared with the prior art, this utility model provides a chemical pharmaceutical mixing and preparation device to prevent precipitation, which has the following beneficial effects:
[0017] Regarding mixing efficiency:
[0018] The device uses horizontally distributed mixing tanks, which provides a wider mixing space for the liquid, allowing the liquid to flow and come into contact more fully during the stirring process.
[0019] The upper and lower spiral mixing blades in the mixing assembly have opposite thread directions. Driven by the motor, they can generate strong opposing rotational forces. This bidirectional stirring method greatly improves the mixing efficiency. Compared with traditional unidirectional stirring, it can mix liquids of different components more quickly and greatly shorten the mixing time.
[0020] Multiple mixing rods are installed at the center of the mixing shaft, which further enhances the mixing effect. During the stirring process, they can agitate the liquid at multiple angles, ensuring that all components in the liquid are evenly distributed throughout the mixing tank, avoiding insufficient mixing in certain areas, thereby improving the overall mixing efficiency and quality.
[0021] Regarding preventing sedimentation:
[0022] The horizontally distributed mixing tanks, combined with the unique internal mixing structure, ensure that the liquid is always in motion during the stirring process, preventing sedimentation at the bottom due to gravity.
[0023] The scraper is installed at the bottom of the L-shaped bracket, with its bottom edge tightly fitting against the bottom wall of the mixing tank. As the mixing tank rotates, the scraper can promptly scrape up the sediment at the bottom, preventing sediment buildup. Even during prolonged mixing, it effectively avoids sedimentation, ensuring the uniformity and stability of the mixture, which is of great significance for chemical pharmaceutical processes that require high-quality mixtures.
[0024] The design of the entire device enables the mixing and anti-precipitation functions to work together. The rotation of the mixing tank drives the scraper to move, while the mixing components perform efficient stirring. The two work together to effectively solve the precipitation problem commonly encountered in chemical pharmaceuticals, thereby improving production efficiency and product quality.
[0025] In summary, this anti-precipitation chemical pharmaceutical mixing and preparation device, through its horizontally distributed mixing tanks and meticulously designed internal mixing components and scrapers, effectively prevents bottom sedimentation while ensuring high mixing efficiency. This not only improves the mixing quality in the chemical pharmaceutical process and avoids product quality issues caused by sedimentation, but also reduces the time and cost waste associated with subsequent operations such as sediment removal. It provides the chemical pharmaceutical industry with an efficient and reliable mixing and preparation solution, possessing significant practical application value and promotional significance. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0028] Figure 3 This is a schematic diagram of the distribution structure of the L-shaped bracket and several mixing components of this utility model;
[0029] Figure 4 This is a schematic diagram of the structure of the mixing component of this utility model.
[0030] The components include: 1. U-shaped support; 2. mixing tank; 3. L-shaped bracket; 4. mixing assembly; 5. scraper; 6. geared motor.
[0031] 31. Fixture;
[0032] 41. Mixing shaft; 42. Upper spiral mixing blade; 43. Lower spiral mixing blade; 44. Mixing rod; 45. Drive motor. Detailed Implementation
[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.
[0034] It should be noted that if the utility model embodiment involves directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0035] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.
[0036] Please see Figure 1-4 A specific embodiment of a chemical pharmaceutical mixing and preparation device for preventing precipitation:
[0037] The device includes a horizontally distributed mixing tank 2, which is specifically installed between the top of a U-shaped support 1, which provides stable support for the entire device.
[0038] An L-shaped bracket 3, extending into the mixing tank 2, is installed on the left side of the U-shaped support 1. The top of the vertically distributed section of the L-shaped bracket 3 is connected to a fixed seat 31 located on the left side of the U-shaped support 1. The fixed seat 31 is cylindrical and inserts into the center of the left end face of the mixing tank 2 to ensure the installation stability of the L-shaped bracket 3, allowing it to rotate and separate from the mixing tank 2 and remain fixed. The length of the cantilever section of the L-shaped bracket 3 is slightly less than the distance between the left and right end faces inside the mixing tank 2, which allows for better operation inside the mixing tank 2.
[0039] Several mixing components 4 are evenly installed from left to right on the lower side of the L-shaped bracket 3. Each mixing component 4 includes a drive motor 45 installed inside the cantilever end of the L-shaped bracket 3, a mixing shaft 41 connected to the output end of the drive motor 45, and upper spiral mixing blades 42, lower spiral mixing blades 43, and mixing rods 44 mounted on the mixing shaft 41. The upper spiral mixing blades 42 and lower spiral mixing blades 43 are correspondingly installed at the upper and lower ends of the mixing shaft 41, with opposite thread directions. This generates opposite rotational forces during operation, better stirring the mixed liquid and preventing sedimentation. Multiple mixing rods 44 are correspondingly installed at the center positions on the mixing shaft 41, further enhancing the mixing effect.
[0040] A scraper 5 with horizontal lines is installed at the bottom of the L-shaped bracket 3. The overall length of the scraper 5 is consistent with the length between the left and right ends of the horizontally placed mixing tank 2. Its bottom edge is tightly attached to the bottom wall of the mixing tank 2. As the mixing tank 2 rotates, the scraper 5 can scrape up the sediment at the bottom of the tank to prevent the sediment from accumulating.
[0041] A geared motor 6 is installed on the right side of the U-shaped support 1 to drive the mixing tank 2 to rotate. The output end of the geared motor 6 is connected to the center of the right end face of the mixing tank 2 through a coupling. The rotation of the geared motor 6 drives the mixing tank 2 to rotate, thereby making the mixing assembly 4 and the scraper 5 work together to achieve efficient mixing and dispensing and prevent sedimentation.
[0042] Working principle
[0043] The drive motor 45 inside each mixing component 4 is activated. The output of the drive motor 45 drives the mixing shaft 41 to rotate. The upper spiral mixing blades 42 and lower spiral mixing blades 43 on the mixing shaft 41, which are corresponding in the upper and lower directions and have opposite threads, generate opposite rotational forces, stirring and mixing the liquid in the mixing tank 2. At the same time, multiple mixing rods 44 installed at the center of the mixing shaft 41 further enhance the mixing effect and prevent sedimentation. As the liquid in the mixing tank 2 is stirred, the reduction motor 6 on the right side of the U-shaped support 1 rotates, driving the mixing tank 2 to rotate through the coupling. At this time, the scraper 5 installed at the bottom of the L-shaped bracket 3 rotates with the mixing tank 2. The bottom edge of the scraper 5 is in close contact with the bottom wall of the mixing tank 2, scraping up the sediment at the bottom of the tank and preventing sediment accumulation, thereby achieving efficient mixing and preventing sedimentation.
[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0046] 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 chemical pharmaceutical mixing and dispensing device for preventing precipitation, comprising a horizontally distributed mixing tank (2), characterized in that: The mixing tank (2) is specifically installed between the top of a U-shaped support (1). An L-shaped bracket (3) that extends into the mixing tank (2) is installed on the left side of the U-shaped support (1). Several mixing components (4) are evenly installed from left to right on the lower side of the L-shaped bracket (3). A scraper (5) with horizontal distribution is installed at the bottom of the lower side of the L-shaped bracket (3). The bottom edge of the scraper (5) is tightly attached to the bottom wall of the mixing tank (2). A geared motor (6) for driving the mixing tank (2) to rotate is installed on the right side of the U-shaped support (1).
2. The chemical pharmaceutical mixing and dispensing device for preventing precipitation according to claim 1, characterized in that: The mixing assembly (4) includes a drive motor (45) installed inside the cantilever end of the L-shaped bracket (3), a mixing shaft (41) connected to the output end of the drive motor (45), and an upper spiral mixing blade (42), a lower spiral mixing blade (43), and a mixing rod (44) installed on the mixing shaft (41).
3. The chemical pharmaceutical mixing and dispensing device for preventing precipitation according to claim 2, characterized in that: The upper spiral mixing blade (42) and the lower spiral mixing blade (43) are respectively installed at the upper and lower ends of the mixing shaft (41). The upper spiral mixing blade (42) and the lower spiral mixing blade (43) have opposite thread directions. The mixing rod (44) has multiple corresponding installations at the center position on the mixing shaft (41).
4. The chemical pharmaceutical mixing and dispensing device for preventing precipitation according to claim 1, characterized in that: The overall length of the scraper (5) is consistent with the length between the left and right ends of the horizontally placed mixing tank (2).
5. A chemical pharmaceutical mixing and dispensing device for preventing precipitation according to claim 1, characterized in that: The top of the vertical distribution section of the L-shaped bracket (3) is specifically connected to the fixed seat (31) set on the left side of the U-shaped support (1). The fixed seat (31) is cylindrical in shape and passes through the center of the left end face of the mixing tank (2).
6. A chemical pharmaceutical mixing and dispensing device for preventing precipitation according to claim 1, characterized in that: The output end of the geared motor (6) is connected to the center of the right end face of the mixing tank (2) via a coupling.
7. A chemical pharmaceutical mixing and dispensing device for preventing precipitation according to claim 1, characterized in that: The length of the cantilever section of the L-shaped bracket (3) is slightly less than the distance between the left and right end faces inside the mixing tank (2).