Mass transfer enhanced centrifuge with horizontal strip inner wall
Patent Information
- Application Number
- CN202522598492.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-08
AI Technical Summary
The smooth inner wall structure of traditional centrifuges results in low mass transfer efficiency, making it difficult to effectively handle difficult-to-separate systems, requiring multiple extractions, which is time-consuming and increases costs.
The centrifuge features a transverse bar-shaped inner wall designed to enhance mass transfer. The inner wall is designed with a gear-shaped transverse bar structure, combined with diamond and T-shaped bars. By cutting and stirring the fluid, it increases the contact area and movement speed of the two phases. The design of the diamond bars allows for quick replacement and facilitates maintenance.
It significantly improves extraction rate and solute transfer speed, reduces extraction stages, and lowers costs, especially for difficult-to-extract and high-viscosity systems.
Smart Images

Figure CN224926258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of centrifuge technology, specifically to a transverse bar-shaped centrifuge inner wall that enhances mass transfer. Background Technology
[0002] The essence of extraction is the transfer of solute between two immiscible phases. For example, in the case of lithium extractant and lithium precipitation mother liquor, lithium ions need to be fully contacted to achieve the mass transfer process from lithium precipitation mother liquor to lithium extractant.
[0003] Traditional centrifugal extractors are essentially a combination of centrifugal separation and liquid-liquid extraction. They utilize centrifugal force to accelerate the initial contact and mass transfer between the light and heavy phases (the solute is transferred from one phase to another). The inner wall is mostly smooth or has a simple flow-guiding structure, resulting in low mass transfer efficiency. Under a smooth inner wall, the contact between the two phases depends on natural diffusion and centrifugal-driven convection. The contact area is small, the residence time is short, and the solute transfer rate is slow. This method is only suitable for easily extractable systems. For systems that are difficult to separate, multiple extractions are required to achieve the desired results, which increases the number of stages in the centrifuge, is time-consuming, and increases costs. Therefore, we propose a transverse bar type inner wall for centrifuges to enhance mass transfer. Utility Model Content
[0004] The purpose of this invention is to provide a transverse bar-shaped centrifuge inner wall that enhances mass transfer.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a transverse bar centrifuge inner wall for enhanced mass transfer, comprising an outer cylinder, an inner cylinder connected to the center of the inner cylinder, a plurality of transverse bars connected to the side of the outer cylinder near the outer cylinder, a plurality of T-shaped bars slidably connected to the inner cylinder on the side near the outer cylinder, and a diamond-shaped bar connected to the side of the T-shaped bars away from the inner cylinder.
[0006] As a further embodiment of this utility model: the top of the inner cylinder is slidably connected with multiple elastic plates, and the elastic plates are composed of telescopic rods, springs and plates.
[0007] As a further embodiment of this utility model: a plurality of the horizontal bars are evenly distributed at equal intervals around the inside of the outer cylinder, and the number of the horizontal bars is eight.
[0008] As a further embodiment of this utility model: magnetic strips are connected to the sides of the multiple T-shaped strips and the inner cylinder that are close to each other.
[0009] As a further embodiment of this utility model: the multiple elastic plates and the multiple T-shaped strips are arranged in a one-to-one correspondence.
[0010] As a further embodiment of this utility model: the height of the plurality of horizontal bars and the plurality of diamond bars is less than the height of the outer cylinder.
[0011] Compared with the prior art, the beneficial effects of this utility model by adopting the above technical solution are as follows:
[0012] 1. This utility model utilizes the gear-shaped transverse structure on the inner wall to cut and stir the fluid during centrifugal extraction, breaking the laminar flow between the two phases, increasing the degree of turbulence, and forcibly increasing the contact area and relative velocity of the two phases, thereby enhancing mass transfer efficiency and greatly improving the extraction rate. The gear-shaped transverse structure forcibly cuts the liquid into tiny droplets, increasing the contact area by 30% to 100% compared to traditional smooth inner wall centrifuges. The solute transfer speed is fast, which can handle systems that are difficult to extract (low partition coefficient). Moreover, its single extraction purity is higher. Due to its sufficient mass transfer, a single extraction process can achieve the effect of multiple extractions in traditional smooth inner wall centrifugal extractors, reducing the number of extraction stages and thus reducing costs. For long-term processing of highly difficult extraction systems, especially systems that are difficult to extract, have high viscosity, and require rapid mass transfer, its overall cost is lower.
[0013] 2. This utility model, through the combined arrangement of diamond-shaped strips and T-shaped strips, enhances mass transfer efficiency while enabling rapid replacement of the diamond-shaped strips. Specifically, by moving the elastic plate, the diamond-shaped strips are exposed in the T-shaped groove inside the inner cylinder wall. Then, the diamond-shaped strips are moved upwards, causing the T-shaped strips to move out of the T-shaped grooves, thus completing the rapid disassembly and assembly of the diamond-shaped strips and facilitating maintenance. Attached Figure Description
[0014] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;
[0015] Figure 2 This is a schematic diagram showing the position of the elastic card plate in an embodiment of this utility model;
[0016] Figure 3 This is a schematic diagram showing the position of the T-shaped strip in an embodiment of this utility model;
[0017] Figure 4 This is a schematic diagram showing the position of the rhombus strip in an embodiment of this utility model.
[0018] In the diagram: 1. Outer cylinder; 2. Inner cylinder; 3. Horizontal bar; 4. T-shaped bar; 5. Diamond-shaped bar; 6. Flexible clamping plate; 7. Magnetic strip. Detailed Implementation
[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.
[0020] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0021] Please see the appendix Figure 1 - Appendix Figure 4 The present invention relates to a transverse bar centrifuge inner wall for enhancing mass transfer, comprising an outer cylinder 1, an inner cylinder 2 connected to the center of the inner cylinder 1, a plurality of transverse bars 3 connected to the side of the outer cylinder 1 near the outer cylinder 1, a plurality of T-shaped bars 4 slidably connected to the inner cylinder 2 on the side near the outer cylinder 1, and a diamond-shaped bar 5 connected to the side of the T-shaped bars 4 away from the inner cylinder 2.
[0022] In Embodiment 1, multiple elastic clamping plates 6 are slidably connected to the top of the inner cylinder 2. The elastic clamping plates 6 are composed of telescopic rods, springs and clamping plates. Magnetic strips 7 are connected to the sides of multiple T-shaped strips 4 and the inner cylinder 2 that are close to each other.
[0023] Specifically, by using the combination of diamond strip 5 and T-shaped strip 4, the mass transfer efficiency is enhanced while allowing the diamond strip 5 to be quickly replaced. This is achieved by moving the elastic plate 6 to expose the T-shaped groove inside the inner cylinder 2, and then moving the diamond strip 5 upwards, which in turn moves the T-shaped strip 4 out of the T-shaped groove, thus completing the quick installation and removal of the diamond strip 5 and facilitating maintenance.
[0024] In Example 2, multiple horizontal bars 3 are evenly distributed at equal intervals around the inside of the outer cylinder 1, and there are eight horizontal bars 3 in total;
[0025] Specifically, the gear-shaped crossbars 3 on the inner wall cut and stir the fluid during centrifugal extraction, breaking the laminar flow between the two phases, increasing the degree of turbulence, and forcibly increasing the contact area and relative velocity of the two phases, thereby enhancing mass transfer efficiency.
[0026] Working principle:
[0027] During use, the gear-shaped transverse bars 3 and multiple diamond-shaped bars 5 on the inner wall work together to cut and stir the fluid during centrifugal extraction, breaking the laminar flow between the two phases, increasing turbulence, and forcibly increasing the contact area and relative velocity between the two phases, thereby enhancing mass transfer efficiency and greatly improving the extraction rate. The gear-shaped transverse bars 3 forcibly cut the liquid into tiny droplets, increasing the contact area by 30% to 100% compared to traditional centrifuges with smooth inner walls. This results in faster solute transfer, making it suitable for systems with low partition coefficients and difficult extraction. Furthermore, it achieves higher purity per extraction due to its thorough mass transfer. This design achieves the effect of multiple extractions achieved by traditional smooth-walled centrifugal extractors, reducing the number of extraction stages and thus reducing costs. For long-term processing of complex extraction systems, especially those that are difficult to extract, have high viscosity, and require rapid mass transfer, the overall cost is even lower. Through the coordinated design of the diamond-shaped strips 5 and T-shaped strips 4, mass transfer efficiency is enhanced while allowing the diamond-shaped strips 5 to be quickly replaced. This is achieved by moving the elastic plate 6 to expose the T-shaped groove inside the inner cylinder 2, then moving the diamond-shaped strips 5 upwards, which in turn moves the T-shaped strips 4 out of the T-shaped groove, completing the quick installation and removal of the diamond-shaped strips 5 for easy maintenance. This concludes the entire workflow.
[0028] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.
[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.
[0031] For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.
Claims
1. A transverse bar centrifuge inner wall for enhanced mass transfer, comprising an outer cylinder (1), characterized in that: The inner cylinder (2) is connected to the center of the outer cylinder (1). Multiple horizontal bars (3) are connected to the side of the outer cylinder (1) close to the outer cylinder (1). Multiple T-shaped bars (4) are slidably connected to the side of the inner cylinder (2) close to the outer cylinder (1). A diamond-shaped bar (5) is connected to the side of the T-shaped bar (4) away from the inner cylinder (2).
2. The transverse bar centrifuge inner wall for enhanced mass transfer according to claim 1, characterized in that: The top of the inner cylinder (2) is slidably connected with multiple elastic plates (6), which are composed of telescopic rods, springs and plates.
3. The transverse bar centrifuge inner wall for enhanced mass transfer according to claim 1, characterized in that: The multiple horizontal bars (3) are evenly distributed at equal intervals around the inside of the outer cylinder (1), and there are eight horizontal bars (3).
4. The transverse bar centrifuge inner wall for enhanced mass transfer according to claim 1, characterized in that: Magnetic strips (7) are connected to the sides of the multiple T-shaped strips (4) and the inner cylinder (2) that are close to each other.
5. The transverse bar centrifuge inner wall for enhanced mass transfer according to claim 2, characterized in that: The multiple elastic plates (6) and multiple T-shaped strips (4) are arranged in a one-to-one correspondence.
6. The transverse bar centrifuge inner wall for enhanced mass transfer according to claim 1, characterized in that: The heights of the multiple horizontal bars (3) and multiple diamond bars (5) are all less than the height of the outer cylinder (1).
