Planetary cage-shaped liquid film-forming mechanism suitable for distillation kettle

Abstract

The present invention discloses a planetary cage-shaped liquid film-forming mechanism suitable for a distillation kettle, comprising a rotating cage, arranged in the distillation kettle, and having: a top cover connected to the driving end of the distillation kettle, on which a first mounting hole is arranged; a supporting seat, arranged at a distance from the top cover, on which a second mounting hole corresponding to the position of the first mounting hole is arranged; a connecting column, one end of which is fixedly connected to the top cover, and the other end of which is fixedly connected to the supporting seat; and also comprising a film scraping column, having a first connecting end shaft and a second connecting end shaft, the first connecting end shaft being movably inserted in the first mounting hole, and the second connecting end shaft being movably inserted in the second mounting hole; wherein, when the rotating cage rotates in the distillation kettle, the film scraping column moves toward the inner wall of the distillation kettle. The present invention can automatically adjust the distance between the film scraping column and the container wall, form a stable film with a consistent thickness, make up for the manufacturing precision error of glass products, and solve the problem of product quality degradation caused by uneven film scraping in the past.

Description

Technical Field

[0001] The invention relates to the technical field of molecular distillation equipment, in particular to a planetary cage-shaped liquid film-forming mechanism suitable for a distillation kettle. Background Art

[0002] In the production process of biopharmaceuticals, natural flavors, health products, etc., there are often physical liquid-liquid separation processes that have strict requirements on thermal sensitivity, require separation temperatures far below the standard boiling point, and have high separation purity requirements. This can be achieved using a scraped film molecular distillation instrument. Under high vacuum conditions, the liquid mixture in the scraped film molecular distillation instrument is formed into a film by the scraping film mechanism, and then the difference in the mean free path of the molecular motion of different substances is used to achieve liquid-liquid separation under heating conditions. Due to the limitations of the manufacturing process, the existing glass scraped film molecular distillation instruments have low precision, and the scraping film mechanism is prone to uneven scraping, which affects the separation effect and causes the product purity to not meet the standards. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a planetary cage-shaped liquid film-forming mechanism suitable for a distillation kettle, and the following technical solutions can be specifically adopted:

[0004] The planetary cage-shaped liquid film-forming mechanism suitable for a distillation kettle of the present invention comprises:

[0005] The rotating cage is set in the still, having

[0006] A top cover connected to the driving end of the distillation kettle and having a first mounting hole;

[0007] A supporting seat, spaced apart from the top cover, and provided with a second mounting hole corresponding to the position of the first mounting hole;

[0008] A connecting column, one end of which is fixedly connected to the top cover, and the other end of which is fixedly connected to the supporting seat;

[0009] The film scraping column has a first connecting end shaft and a second connecting end shaft, wherein the first connecting end shaft is movably inserted in the first mounting hole, and the second connecting end shaft is movably inserted in the second mounting hole;

[0010] When the rotating cage rotates in the distillation kettle, the film scraping column moves toward the inner wall of the distillation kettle.

[0011] The upper surface of the top cover is a conical surface.

[0012] The top cover, the supporting seat and the distillation kettle are coaxially arranged, and the top cover and the supporting seat have the same diameter.

[0013] The supporting seat is a circular ring structure.

[0014] There are multiple connecting columns and film scraping columns, which are evenly spaced and staggered at the edge of the top cover.

[0015] The first mounting hole is a long hole whose width matches the first connection end axis, the second mounting hole is a long hole whose width matches the second connection end axis, and the long axes of the first mounting hole and the second mounting hole are both set away from the top cover radius.

[0016] The angles α between the long axes of the first mounting hole and the second mounting hole and the radius of the top cover are both 5-45°.

[0017] The planetary cage-shaped liquid film-forming mechanism suitable for the distillation kettle provided by the present invention has a simple structure and is stable and reliable. Under the centrifugal effect, the film-scraping column can automatically adjust the distance between it and the container wall to form a stable film with consistent thickness, thereby compensating for the manufacturing accuracy error of the glass products and solving the problem of product quality degradation caused by uneven film scraping in the past. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 yes Figure 1 Schematic diagram of the assembly in the still.

[0020] Figure 3 yes Figure 1 Top view of the .

[0021] Figure 4 yes Figure 1 Cross-section of the middle top cover. DETAILED DESCRIPTION

[0022] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific working process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0023] like Figure 1-4 As shown, the planetary cage-shaped liquid film-forming mechanism suitable for a distillation kettle described in the present invention includes a rotating cage composed of a top cover 101, a supporting seat 102 and a connecting column 103, and a film scraping column 2 installed on the rotating cage.

[0024] Specifically, the rotating cage is located in the distillation kettle, and its top cover 101 is a conical structure, and the supporting seat 102 is a circular ring structure with the same diameter. The two are coaxially arranged with the distillation kettle and fixedly connected by connecting columns 103; in this embodiment, there are four connecting columns 103, which are evenly arranged along the periphery of the top cover 101 and the supporting seat 102. Usually, threads are provided at both ends of the connecting columns 103, which pass through the through holes opened on the top cover 101 and the supporting seat 102 and are fixed by nuts.

[0025] There are four film scraping columns 2, which are evenly spaced and staggered with the connecting columns 103, and are movably connected with the top cover 101 and the supporting seat 102. Specifically, a first connecting end shaft 201 is extended from the top of each film scraping column 2, and a second connecting end shaft is extended from the bottom. The first connecting end shaft 201 is inserted into the first mounting hole 104 of the top cover 101, and the second connecting end shaft is inserted into the second mounting hole of the supporting seat 102. The above-mentioned first mounting hole 104 is a long hole with a width adapted to the first connecting end shaft 201, and the second mounting hole is a long hole with a width adapted to the second connecting end shaft. Each group of first mounting holes 104 and second mounting holes are located in corresponding positions, and the long axes of both are offset in the same direction with the radius of the top cover 101 by the same angle α, which is usually 5-45°, so that the centrifugal force on the film scraping column 2 is greater, which is more conducive to the film scraping column 2 being close to the inner wall of the distillation kettle.

[0026] The top cover 101 is connected to the driving shaft (i.e., the driving end) of the still. When the rotating cage rotates, the material enters the still from the feed port at the top of the still and falls on the conical surface of the top cover 101. Under the action of centrifugal force, the material is thrown onto the inner wall of the still and flows downward along the inner wall of the still. During this process, each scraping column 2 moves toward the inner wall of the still under the action of centrifugal force to rotate and scrape the material. Since the scraping column 2 can move freely within the long axis range of the first mounting hole 104 and the second mounting hole and always maintains a certain distance from the inner wall of the still (the distance is in micrometers), the material can form a stable film of uniform thickness on the inner wall of the still, thereby compensating for the manufacturing precision error of the glass still and solving the problem of product quality degradation caused by uneven scraping.

[0027] It should be noted that, in the description of the present invention, terms indicating orientation or positional relationships, such as "front", "rear", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

Claims

1. A planetary cage-shaped liquid film-forming mechanism suitable for a distillation kettle, characterized in that: The film forming mechanism comprises: The rotating cage is set in the still, having A top cover connected to the driving end of the distillation kettle and having a first mounting hole; A supporting seat, spaced apart from the top cover, and provided with a second mounting hole corresponding to the position of the first mounting hole; A connecting column, one end of which is fixedly connected to the top cover, and the other end of which is fixedly connected to the supporting seat; The film scraping column comprises a first connecting end shaft and a second connecting end shaft, wherein the first connecting end shaft is movably inserted in the first mounting hole, and the second connecting end shaft is movably inserted in the second mounting hole; Wherein, when the rotating cage rotates in the distillation kettle, the film scraping column moves toward the inner wall of the distillation kettle; The upper surface of the top cover is a conical surface; The top cover, the supporting seat and the distillation kettle are coaxially arranged, and the top cover and the supporting seat have the same diameter; There are multiple connecting columns and film scraping columns, which are evenly spaced and staggered at the edge of the top cover; The first mounting hole is a long hole whose width matches the axis of the first connection end, the second mounting hole is a long hole whose width matches the axis of the second connection end, and the long axes of the first mounting hole and the second mounting hole are both set away from the radius of the top cover; The angles α between the long axes of the first mounting hole and the second mounting hole and the radius of the top cover are both 5-45°.

2. The planetary cage-shaped liquid film-forming mechanism suitable for a distillation kettle according to claim 1, characterized in that: The supporting seat is a circular ring structure.

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