Distillation tower for wool oil production

Abstract

The utility model relates to the technical field of wool oil processing, and provides a distillation tower for wool oil production, which comprises a tower body, a vacuum tube, a distribution device, a support device, an upper filler, a lower filler, a feed inlet, an air inlet, a reflux inlet and an observation device, the vacuum tube is arranged at the top of the tower body, the feed inlet is arranged in the middle of the tower body, and the distribution device is arranged at the bottom of the tower body. The distribution device is arranged in the tower body, the upper filler and the lower filler are both arranged in the tower body, the upper filler is located in the middle of the distribution device, and by arranging the lower filler, the gas-liquid contact area in the tower is increased, effective mass transfer between gas and liquid phases is promoted, and the distillation efficiency is improved; the lower filler is beneficial to more uniform distribution of liquid entering from the feed port, non-uniform flow (wall flow phenomenon) of the liquid on the inner wall surface of the tower is reduced, the uniformity of the gas-liquid mass transfer process is ensured, the lower filler layer can disperse steam entering from the air inlet, and the steam is prevented from directly impacting the tower wall or intensively flowing.

Description

Technical Field

[0001] The utility model relates to the technical field of wool oil processing, in particular to a distillation tower for wool oil production. Background Art

[0002] Lanolin, also known as wool oil, is a natural oil extracted from wool that has a variety of uses, particularly in the cosmetic, pharmaceutical, and industrial sectors. Composed of various fatty acids and fatty alcohols, it has emulsifying properties and can absorb large amounts of water.

[0003] Traditional distillation towers can suffer from insufficient gas-liquid contact, resulting in low mass transfer efficiency. During the distillation process, uneven liquid distribution within the tower can lead to wall flow, which not only reduces the effective gas-liquid contact area but can also cause flow instability within the tower, impacting distillation performance. In light of these issues, the present application is filed. Utility Model Content

[0004] This application proposes a distillation tower for wool oil production to address the problem of insufficient gas-liquid contact in conventional distillation towers in the prior art, resulting in low mass transfer efficiency. During the distillation process, uneven distribution of liquid within the tower can lead to wall flow, which not only reduces the effective gas-liquid contact area but also may cause instability in the flow within the tower, affecting the distillation effect. The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A distillation tower for producing lanolin comprises a tower body, a vacuum tube, a distribution device, a supporting device, an upper filler, a lower filler, a feed port, an air inlet, a reflux port, and an observation device, wherein the vacuum tube is opened at the top of the tower body, the feed port is arranged in the middle of the tower body, the distribution device is arranged in the tower body, the upper filler and the lower filler are both arranged in the tower body, the upper filler is located in the middle of the distribution device, the lower filler is located below the feed port, the air inlet is arranged at the lower side of the tower body, the reflux port is arranged at the upper side of the tower body, and the observation device is arranged at the lower side of the tower body.

[0006] Furthermore, the distribution device includes an upper oil distribution plate and a lower oil distribution plate, the upper oil distribution plate and the lower oil distribution plate are arranged in the tower body, and the upper filler is located between the upper oil distribution plate and the lower oil distribution plate.

[0007] Furthermore, the supporting device includes a first filling rack and a second filling rack, the first filling rack and the second filling rack are arranged in the tower body, and the first filling rack and the second filling rack support the upper filling and the lower filling respectively.

[0008] Furthermore, the observation device includes a viewing mirror, which is arranged at the lower side of the tower body and located at the lower side of the air inlet.

[0009] Furthermore, the number of the viewing mirrors is two.

[0010] Furthermore, a discharge port is provided at the bottom of the tower body.

[0011] Compared with the prior art, the beneficial effects of the present invention include:

[0012] By setting up the lower packing, the gas-liquid contact area in the tower is increased, the effective mass transfer between the gas and liquid phases is promoted, and the distillation efficiency is improved. The lower packing helps to more evenly distribute the liquid entering from the feed inlet, reduce the uneven flow of liquid on the inner wall of the tower (wall flow phenomenon), and ensure the uniformity of the gas-liquid mass transfer process. The lower packing layer can disperse the steam entering from the air inlet, preventing the steam from directly impacting the tower wall or concentrated flow, thereby improving the uniformity of steam distribution in the packing layer;

[0013] In the packing layer, the liquid may tend to flow toward the tower wall due to gravity. The lower packing layer helps to redistribute the liquid during the descending process, reducing the high concentration area near the tower wall and improving the overall separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] In the figure: 1. Tower body; 2. Vacuum tube; 3. Upper packing; 4. Lower packing; 5. Feed port; 6. Air inlet; 7. Reflux port; 8. Upper oil distribution plate; 9. Lower oil distribution plate; 10. First packing rack; 11. Second packing rack; 12. Sight glass; 13. Discharge port. DETAILED DESCRIPTION

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0018] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0019] Please see the attached Figure 1 A distillation tower for producing wool oil includes a tower body 1, a vacuum tube 2, a distribution device, a supporting device, an upper filler 3, a lower filler 4, a feed port 5, an air inlet 6, a reflux port 7, and an observation device. The vacuum tube 2 is opened at the top of the tower body 1, the feed port 5 is set in the middle of the tower body 1, the distribution device is set in the tower body 1, the distribution device includes an upper oil distribution plate 8 and a lower oil distribution plate 9, the upper oil distribution plate 8 and the lower oil distribution plate 9 are set in the tower body 1, and the upper filler 3 is located between the upper oil distribution plate 8 and the lower oil distribution plate 9. In the middle, the upper filler 3 and the lower filler 4 are both arranged on a supporting device, and the supporting device includes a first filler rack 10 and a second filler rack 11. The first filler rack 10 and the second filler rack 11 are arranged in the tower body 1, and the first filler rack 10 and the second filler rack 11 support the upper filler 3 and the lower filler 4 respectively. The upper filler 3 is located in the middle of the distribution device, the lower filler 4 is located at the lower side of the feed port 5, the air inlet 6 is arranged on the lower side of the tower body 1, the reflux port 7 is arranged on the upper side of the tower body 1, and the observation device is arranged on the lower side of the tower body 1.

[0020] Using the above technical solution, the tower body 1 is the main structure of the distillation tower, which is loaded with fillers, distribution devices and other components inside, and is provided with interfaces such as vacuum tube 2, feed port 5, air inlet 6, reflux port 7 and observation device on the outside. The interior of the tower body 1 is divided into different areas to meet the needs of gas-liquid flow and mass transfer during the distillation process; the vacuum tube 2 is installed at the top of the tower, which is used to connect the vacuum system to reduce the pressure inside the tower and make the material evaporate at a lower temperature, which is suitable for the distillation of heat-sensitive substances and avoid thermal decomposition; the feed port 5 is located in the middle of the tower body 1. The feed port 5 is responsible for introducing the preheated wool oil raw material into the tower. The setting position of the feed port 5 is conducive to the full mixing of the raw material with the rising steam in the tower, and preliminary flash evaporation and separation. The distribution device includes an upper oil distribution plate 8 and a lower oil distribution plate 9, which are installed in the tower body 1 and are used to evenly distribute the wool oil entering the tower to ensure that it is evenly distributed over the entire cross section and improve the mass transfer efficiency;

[0021] The upper packing 3 and the lower packing 4 are arranged in the tower body 1 to increase the gas-liquid contact area and promote the mass transfer process between the gas-liquid two phases. The upper packing 3 is located between the upper oil distribution plate 8 and the lower oil distribution plate 9, and the lower packing 4 is located on the lower side of the feed port 5. The two layers of packing work together to achieve more efficient separation. In detail, the purpose of arranging the lower packing 4 below the middle is mainly to improve the contact efficiency between the gas and the liquid and enhance the mass transfer effect. The lower packing 4 provides a larger contact area, so that the gas-liquid two phases can fully contact and transfer mass on the surface or gap of the packing, thereby improving the separation efficiency. In addition, the lower packing 4 also helps to disperse the feed liquid, avoid direct impact on the tower wall or the formation of large droplets, reduce wall flow phenomenon, and ensure the uniformity of gas-liquid distribution;

[0022] The air inlet 6 is arranged at the lower side of the tower body 1 for introducing heating steam to heat the material in the tower and evaporate it. The position and design of the air inlet 6 help to form a uniform rising steam flow. The reflux port 7 is located on the upper side of the tower body 1 for collecting steam at the top of the tower. Part of the steam flows back into the tower through the reflux port 7 as liquid phase reflux in the distillation process to maintain the mass transfer balance in the tower.

[0023] In some embodiments, the observation device includes a sight glass 12, which is arranged at the lower side of the tower body 1. The sight glass 12 is located at the lower side of the air inlet 6. There are two sight glasses 12 for observing the flow and distillation of the material in the tower. The sight glass 12 is located at the lower side of the air inlet 6, and the state of the material near the air inlet 6 can be observed. The two sight glasses 12 can provide a better observation angle and field of view, so that the operator can understand the situation in the tower more accurately.

[0024] In some embodiments, a discharge port 13 is provided at the bottom of the tower body 1, and a discharge port 13 is provided at the bottom of the tower body 1 for collecting the bottom product after the distillation process, such as heavy components or residues, to achieve effective collection and separation of products and waste.

[0025] Working principle:

[0026] Refined anhydrous lanolin is preheated to a liquid state and then added to the middle feed port 5 of a distillation tower. Steam is introduced through the air inlet 6. By controlling the temperature and pressure, separation is achieved by taking advantage of the different mean free paths of different molecules escaping the liquid surface after heating. Primary and secondary molecular distillation are performed at different temperatures and pressures to remove pesticide residues from the lanolin. During the distillation process, light components are concentrated in the vapor phase and move upward to the top of the tower, while heavy components are concentrated in the liquid phase and move downward to the bottom of the tower. The upper packing 3 and lower packing 4 inside the distillation tower provide a place for gas-liquid contact, increasing the contact surface between the two fluids and promoting close contact and mass transfer between the gas and liquid phases. By controlling the temperature and pressure curve within the tower, separation is achieved by taking advantage of the differences in the relative volatility of the mixture components and the phase transition trends. The light components at the top of the tower are collected as pesticide-free lanolin, while the heavy components at the bottom of the tower are pesticide-free lanolin. Through further separation, pesticide-free wool wax can be prepared from the pesticide-free lanolin.

[0027] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A distillation tower for wool oil production, characterized in that: The tower body (1) comprises a tower body (1), a vacuum tube (2), a distribution device, a supporting device, an upper filler (3), a lower filler (4), a feed port (5), an air inlet (6), a reflux port (7) and an observation device, wherein the vacuum tube (2) is opened at the top of the tower body (1), the feed port (5) is arranged in the middle of the tower body (1), the distribution device is arranged in the tower body (1), the upper filler (3) and the lower filler (4) are both arranged in the tower body (1), the upper filler (3) is located in the middle of the distribution device, the lower filler (4) is located below the feed port (5), the air inlet (6) is arranged on the lower side of the tower body (1), the reflux port (7) is arranged on the upper side of the tower body (1), and the observation device is arranged on the lower side of the tower body (1).

2. A distillation tower for wool oil production according to claim 1, characterized in that: The distribution device comprises an upper oil distribution plate (8) and a lower oil distribution plate (9), wherein the upper oil distribution plate (8) and the lower oil distribution plate (9) are arranged in the tower body (1), and the upper filler (3) is located between the upper oil distribution plate (8) and the lower oil distribution plate (9).

3. A distillation tower for wool oil production according to claim 1, characterized in that: The supporting device comprises a first packing frame (10) and a second packing frame (11), wherein the first packing frame (10) and the second packing frame (11) are arranged in the tower body (1), and the first packing frame (10) and the second packing frame (11) respectively support the upper packing (3) and the lower packing (4).

4. A distillation tower for wool oil production according to claim 1, characterized in that: The observation device comprises a viewing mirror (12), the viewing mirror (12) being arranged at a lower side of the tower body (1), and the viewing mirror (12) being located at a lower side of the air inlet (6).

5. A distillation tower for wool oil production according to claim 4, characterized in that: The number of the sight glasses (12) is two.

6. A distillation tower for wool oil production according to claim 1, characterized in that: A discharge port (13) is provided at the bottom of the tower body (1).

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