A scraper for a scraped-film molecular distillation apparatus
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-06
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]目前的刮膜器型号单一且结构为整体焊接式，转盘与转子焊接在一起，转盘下方固定安装有刮膜片等部件，由于刮膜片等部件均为固定结构不能调节，这就导致刮膜片在长期与分子蒸馏器内壁摩擦而产生磨损后，导致刮膜片无法紧贴分子蒸馏器的内壁，为了不影响刮膜器的使用效果，只能整体进行更换，但是实际上磨损后的刮膜片只要能再次接触紧贴分子蒸馏器的内壁还能正常使用，但是由于刮膜片的位置无法调节，只能进行更换，这不仅造成资源的浪费，还大大增加了生产成本，故本申请特提出一种用于刮膜式分子蒸馏器的刮膜器，用于解决上述问题
本申请在使用时，设有的刮膜片通过L型连接杆固定安装在滑块下方，滑块又通过调节丝杠布置在滑道内，解除限位组件对调节丝杠的限制后可以通过调节丝杠对滑块进行调节，进而改变滑块在滑道中的位置，同时L型连接杆连同刮膜片也将随之改变位置，进而可以调节磨损后的刮膜片再次紧贴分子蒸馏器的内壁，进而可以确保刮膜片可以继续正常使用而不需要重新更换，本申请结构简单，使用方便，实用性强。
Smart Images
Figure CN224613193U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of molecular distillation membrane scraper devices, and in particular to a membrane scraper for a scraped-film molecular distillation apparatus. Background Technology
[0002] Molecular distillation is a liquid-liquid separation technology performed under high vacuum conditions. It features low distillation temperature, high vacuum, short material heating time, and high separation degree. The separation is irreversible, without boiling or bubbling, making it particularly suitable for separating high-boiling-point, heat-sensitive, and easily oxidized substances. The key equipment in this technology is the molecular distillation apparatus. Commonly used molecular distillation apparatuses include static, falling film, scraped film, and centrifugal molecular distillers. The key component of the scraped film molecular distiller is the scraper, installed between the internal cooler and the inner wall of the evaporator. The scraper evenly distributes the material to be distilled on the evaporation surface, forming a uniform thin film. The volatile components in the film escape from the liquid phase and are condensed in the internal condenser. The entire evaporation and condensation process is completed in a short time, ensuring that the extract remains unchanged.
[0003] Current scraper models are limited in variety and have a single welded structure, with the turntable and rotor welded together. The scraper blade and other components are fixedly installed below the turntable. Because these components are fixed and cannot be adjusted, the scraper blade wears down over time due to friction with the inner wall of the molecular distillation unit. This causes the scraper blade to lose its grip on the inner wall, requiring replacement of the entire unit to maintain its performance. However, even worn scraper blades can still function properly if they can re-adhere to the inner wall. The inability to adjust the scraper blade's position necessitates replacement, which not only wastes resources but also significantly increases production costs. Therefore, this application proposes a scraper for scraped-film molecular distillation units to address these problems. Utility Model Content
[0004] To address the above issues and overcome the shortcomings of existing technologies, this utility model provides a scraper for a scraped-film molecular distillation apparatus. The solution includes a distillation apparatus body with an end cap connected to a flange at the upper end. The end cap is coaxially rotatably connected to a vertical shaft. A motor for driving the vertical shaft is fixedly connected to the upper end of the end cap. Multiple sets of mounting rods evenly distributed around the vertical shaft are fixedly connected to the lower end of the vertical shaft. Each mounting rod has a centrally located slide rail. Each slide rail is rotatably connected to an adjusting screw. Each adjusting screw is threadedly connected to a slider that slidably connects to its corresponding slide rail. An L-shaped connecting rod is fixedly connected to the lower end of each slider. Each L-shaped connecting rod is fixedly connected to a scraper blade that slidably abuts against the distillation apparatus body. An adjusting dial is coaxially fixedly connected to the end of each adjusting screw. Each mounting rod is equipped with a limiting component that cooperates with the adjusting screw on its corresponding side.
[0005] Preferably, each of the limiting components includes a limiting screw hole on the mounting rod, and the limiting screw hole is threadedly connected to a limiting set screw that abuts against the adjusting screw.
[0006] Preferably, the distiller body and end cap are integrally connected with flanges and connected by bolts.
[0007] The beneficial effects of this utility model are: In use, the scraper blade is fixedly installed below the slider via an L-shaped connecting rod. The slider is arranged in the slide rail via an adjusting screw. After the limiting component restricts the adjusting screw, the slider can be adjusted via the adjusting screw, thereby changing the position of the slider in the slide rail. At the same time, the L-shaped connecting rod and the scraper blade will also change position accordingly. This allows the worn scraper blade to be adjusted to fit tightly against the inner wall of the molecular distillation apparatus again, ensuring that the scraper blade can continue to be used normally without replacement. This application has a simple structure, is easy to use, and is highly practical. Attached Figure Description
[0008] Figure 1 This is a first-person perspective three-dimensional sectional view of the present invention.
[0009] Figure 2 This utility model Figure 1 A magnified view of region A in the middle.
[0010] Figure 3 This utility model Figure 2 A magnified view of region B in the middle.
[0011] Figure 4 This is a partial stereoscopic view of the present invention from a second perspective.
[0012] Figure 5 This utility model Figure 4 A magnified view of region C in the middle.
[0013] Figure Labels 1. Distillation apparatus body, 2. End cap, 3. Vertical shaft, 4. Motor, 5. Mounting rod, 6. Slide rail, 7. Adjusting screw, 8. Slider, 9. L-shaped connecting rod, 10. Scraper blade, 11. Adjusting dial, 12. Limiting assembly, 13. Limiting screw hole, 14. Limiting set screw, 15. Flange, 16. Bolt. Detailed Implementation
[0014] The following is in conjunction with the appendix Figure 1-5 The specific embodiments of this utility model will be described in further detail.
[0015] In the first embodiment, the technical solution is as follows: When in use, the scraper 10 is fixedly installed below the slider 8 via an L-shaped connecting rod 9. The slider 8 is arranged in the slide rail 6 via an adjusting screw 7. After the limiting component 12 releases the restriction on the adjusting screw 7, the slider 8 can be adjusted via the adjusting screw 7, thereby changing the position of the slider 8 in the slide rail 6. At the same time, the L-shaped connecting rod 9 and the scraper 10 will also change position accordingly, thereby adjusting the worn scraper 10 to fit tightly against the inner wall of the molecular distillation apparatus again, thus ensuring that the scraper 10 can continue to be used normally without replacement. This application has a simple structure, is easy to use, and is highly practical.
[0016] In Example 2, based on Example 1, specifically, in use, the motor 4 can drive the vertical shaft 3 to rotate. When the vertical shaft 3 rotates, the mounting rod 5, along with the slider 8, the L-shaped connecting rod 9, the scraper 10, and other related components, will also rotate. As a result, the scraper 10 can uniformly disperse the material into a film, so that the molecular distillation apparatus can work.
[0017] When the scraper blade 10 wears down due to long-term friction with the inner wall of the molecular distillation apparatus, causing it to fail to adhere tightly to the inner wall of the distillation apparatus body 1, it can be adjusted by adjusting the screw 7. Specifically, first, the limiting screw 14 in the limiting screw hole 13 is turned outward to disengage it from the adjusting screw 7. Then, the adjusting screw 7 can be rotated by adjusting the dial 11. Rotating the adjusting screw 7 clockwise will drive the slider 8, which is restricted by the slide rail 6. Rotating the adjusting screw 7 clockwise will drive the slider 8 to move away from the vertical axis 3 along the slide rail 6, that is, to move closer to the inner wall of the distillation apparatus body 1. The L-shaped connecting rod 9 and the scraper blade 10, which are fixedly connected to the slider 8, will also move synchronously. After adjusting the position of the scraper blade 10, tighten the limiting screw 14 again so that the limiting screw 14 presses against the adjusting screw 7, restricting the rotation of the adjusting screw 7.
[0018] In Example 3, based on Example 2, the end cap 2 is fastened to the upper end of the distiller body 1 by a flange 15 and bolts 16, which facilitates the disassembly of the end cap 2 and the adjustment of the scraper 10.
Claims
1. A scraper for a scraped-film molecular distillation apparatus, comprising a distillation apparatus body (1), wherein an end cap (2) is connected to the upper flange of the distillation apparatus body (1), characterized in that, The end cap (2) is rotatably connected to a vertical shaft (3). The upper end of the end cap (2) is fixedly connected to a motor (4) for driving the vertical shaft (3). The lower end of the vertical shaft (3) is fixedly connected to multiple sets of mounting rods (5) evenly distributed around its axis. Each mounting rod (5) is provided with a slide rail (6) in the center. Each slide rail (6) is rotatably connected to an adjusting screw (7). Each adjusting screw (7) is threadedly connected to a slider (8) that is slidably connected to the slide rail (6) on its corresponding side. Each slider (8) is fixedly connected to an L-shaped connecting rod (9) at its lower end. Each L-shaped connecting rod (9) is fixedly connected to a scraper (10) that slides against the still body (1). Each adjusting screw (7) is coaxially fixedly connected to an adjusting dial (11) at its end. Each mounting rod (5) is provided with a limiting component (12) that works in conjunction with the adjusting screw (7) on its corresponding side.
2. The scraper for a scraped-film molecular distillation apparatus according to claim 1, characterized in that, Each of the limiting components (12) includes a limiting screw hole (13) opened on the mounting rod (5), and the limiting screw hole (13) is threadedly connected to a limiting set screw (14) that abuts against the adjusting screw (7).
3. The scraper for a scraped-film molecular distillation apparatus according to claim 1, characterized in that, The distiller body (1) and end cap (2) are integrally connected to a flange (15) and connected by bolts (16).