Separation system

Abstract

This invention provides a separation system, relating to the field of purification technology. The separation system includes an adjusting tank, a feeding mechanism, a drying mechanism, and a condensing mechanism. The adjusting tank contains the raw material to be separated. The feeding mechanism is connected to the adjusting tank and atomizes the raw material to be separated, forming a spray-like material. The feeding mechanism is at least partially located within the drying mechanism, which heats the spray-like raw material to form solid residue and vapor. The condensing mechanism is connected to the drying mechanism and liquefies the vapor to form a liquid. The feeding mechanism atomizes the raw material to be separated, forming a spray-like material, and the drying mechanism heats the spray-like material, resulting in rapid drying and improved drying efficiency. This invention's separation system has a high degree of automation, high material handling capacity, and can achieve continuous separation.

Description

Technical Field

[0001] This utility model generally relates to the field of purification technology, and more specifically, to a separation system. Background Technology

[0002] 1,5-Pentanediamine (DN5, abbreviated as pentanediamine), also known as cadaverine, has wide applications in agriculture, medicine, and industry. 1,5-Pentanediamine can be prepared through biotransformation, specifically through fermentation or enzymatic conversion. During the extraction of 1,5-pentanediamine from the fermentation broth or enzymatic conversion solution, the resulting solid-liquid mixture contains sugars, proteins, metabolic byproducts, and inorganic salt impurities from the biotransformation process. The solid content of this mixture is typically 10%–80%, and it also contains pentanediamine and water. Pentanediamine is liquid at room temperature. If evaporation or distillation is used to extract the 1,5-pentanediamine product from this solid-liquid mixture, the viscosity of the system increases in the later stages of evaporation or distillation, reducing distillation efficiency and increasing energy consumption. Furthermore, the currently used intermittent evaporation or distillation separation and purification methods generally cannot achieve continuous production. Evaporation of 1,5-pentanediamine has low production efficiency and results in energy waste and high production costs. At the same time, the instability of product quality will also have an adverse effect, failing to meet the quality requirements of 1,5-pentanediamine products. Utility Model Content

[0003] The separation system provided by this invention can improve separation efficiency.

[0004] According to one aspect of the present invention, a separation system is provided, comprising:

[0005] Adjustment tank, the adjustment tank being used to contain the raw materials to be separated;

[0006] A fabric feeding mechanism is connected to the adjustment tank. The fabric feeding mechanism is used to atomize the raw material to be separated into a spray-like form.

[0007] A drying mechanism, wherein the cloth-making mechanism is at least partially disposed within the drying mechanism, the drying mechanism being used to heat the raw material to be separated in a spray form to form solid residue and steam;

[0008] A condensing mechanism, connected to the drying mechanism, is used to liquefy the vapor into a liquid.

[0009] In some embodiments, the drying mechanism includes:

[0010] A drying tower, wherein the fabric feeding mechanism is at least partially disposed inside the drying tower, and a first air outlet is provided at the top of the drying tower for discharging the steam, and the air outlet is connected to the condensation mechanism;

[0011] The first heating structure is disposed on the inner wall and / or outer wall of the drying tower.

[0012] In some embodiments, a crushing mechanism is also included, which is connected to the small end of the drying tower and is used to crush the solid residue inside the drying tower.

[0013] The crushing mechanism includes a crushing drive source and a guide member. The guide member has a spiral structure. The output end of the crushing drive source is connected to the guide member. The crushing drive source can drive the guide member to rotate, so that the guide member can guide the solid residue to move along a spiral trajectory.

[0014] In some embodiments, the fabric mechanism includes:

[0015] A rotating disk is disposed within the drying mechanism. The rotating disk has a liquid inlet at its top along the axial direction. The liquid inlet is used to receive the raw material to be separated output from the adjusting tank. The rotating disk has multiple liquid outlets along the circumferential direction. The liquid outlets are connected to the liquid inlet.

[0016] A rotary drive source is located outside the drying mechanism. The output end of the rotary drive source is connected to the rotary disk. The rotary drive source can drive the rotary disk to rotate relative to the drying mechanism, so that the liquid outlet hole sprays out the raw material to be separated in a spray form.

[0017] In some embodiments, the rotating disk includes:

[0018] A cover plate, wherein the liquid inlet is disposed on the cover plate;

[0019] The chassis is arranged parallel to and spaced apart from the cover plate. A connecting shaft is provided on the side of the chassis facing the cover plate. The connecting shaft passes through the cover plate and is connected to the output end of the rotary drive source.

[0020] Multiple connecting posts are disposed between the chassis and the cover plate and arranged around the chassis. The liquid outlet is disposed between two adjacent connecting posts, the chassis and the cover plate.

[0021] In some embodiments, a separation mechanism is also included, which is disposed between the drying mechanism and the condensing mechanism and communicates with the drying mechanism and the condensing mechanism respectively, so that the steam discharged from the drying mechanism is separated into solid and gas by the separation mechanism and then enters the condensing mechanism.

[0022] The separation mechanism includes:

[0023] A separation tower, wherein a second gas outlet is provided at the top of the separation tower and the second gas outlet is connected to the condensation mechanism;

[0024] The second heating structure is disposed on the inner wall and / or outer wall of the separation tower.

[0025] In some embodiments, a vacuum component is also included, which is in communication with the condensation mechanism and is used to extract air from the drying mechanism through the condensation mechanism;

[0026] And / or, it also includes a vacuum component, which is connected to the drying mechanism and is used to extract air from the drying mechanism.

[0027] In some embodiments, a stirring assembly is also included, which is at least partially rotatably disposed within the adjusting tank, and the stirring assembly is used to stir the raw material to be separated;

[0028] And / or, it also includes a temperature control component, which is disposed in the adjustment tank for preheating the raw material to be separated.

[0029] In some embodiments, a feed pump is also included, which is disposed between the adjusting tank and the spreading mechanism, and the feed pump is used to transport the raw material to be separated in the adjusting tank to the spreading mechanism;

[0030] And / or, it also includes a filter disposed between the adjustment tank and the fabric feeding mechanism, the filter being used to filter the raw material to be separated within the adjustment tank.

[0031] In some embodiments, a refining mechanism is also included, which is connected to the condensation mechanism and is used to refine the liquid.

[0032] The refining apparatus includes at least one of a distillation apparatus, a distillation apparatus, and an evaporation apparatus.

[0033] One embodiment of this utility model has the following advantages or beneficial effects:

[0034] The separation system provided in this embodiment transports the raw material to be separated in the adjustment tank to the feeding mechanism. The feeding mechanism distributes the raw material to be separated into the drying mechanism. The drying mechanism heats the raw material to be separated to form solid residue and steam. The solid residue is deposited in the drying mechanism, and the steam enters the condensation mechanism and liquefies to form liquid. The equipment has a high degree of automation and high material handling capacity, and can obtain high-purity products such as 1,5-pentanediamine, thereby achieving continuous separation of 1,5-pentanediamine.

[0035] Simultaneously, the fabric feeding mechanism atomizes the raw materials to be separated, forming a spray-like substance that breaks down into small droplets. The drying mechanism heats the spray-like raw materials, increasing the contact area between them and the drying mechanism, resulting in faster drying and improved efficiency. This method also allows for increasing the solid content of the raw materials, with a solid content (based on dry weight) ranging from 15% to over 60%, making it highly versatile. Attached Figure Description

[0036] To better understand this invention, reference can be made to the embodiments shown in the following drawings. Components in the drawings are not necessarily to scale, and related elements may be omitted to emphasize and clearly illustrate the technical features of this invention. Furthermore, related elements or components may have different arrangements as known in the art. Additionally, in the drawings, the same reference numerals denote the same or similar components in various figures. The above and other features and advantages of this invention will become more apparent by describing exemplary embodiments of the invention in detail with reference to the drawings.

[0037] in:

[0038] Figure 1 The diagram shown is a structural schematic of the separation system according to Embodiment 1 of this utility model;

[0039] Figure 2 The diagram shown is a schematic representation of the fabric distribution mechanism in the separation system of Embodiment 1 of this utility model. Figure 1 ;

[0040] Figure 3 The diagram shown is a schematic representation of the fabric distribution mechanism in the separation system of Embodiment 1 of this utility model. Figure 1 ;

[0041] Figure 4 The diagram shown is a structural schematic of the fabric distribution mechanism in the separation system of Embodiment 2 of this utility model;

[0042] Figure 5 The diagram shown is a partial schematic of the fabric distribution mechanism in the separation system of Embodiment 2 of this utility model.

[0043] The reference numerals in the attached figures are explained as follows:

[0044] 1. Adjustment tank; 2. Fabric feeding mechanism; 3. Drying mechanism; 4. Condensation mechanism; 5. Crushing mechanism; 6. Separation mechanism; 7. Vacuum components; 8. Feed pump; 9. Filter; 10. Refining mechanism;

[0045] 100. Feed inlet; 101. First feed inlet; 102. Second feed inlet;

[0046] 21. Rotary disc; 2101. Liquid inlet; 2102. Liquid outlet; 2103. Centrifugal flow channel;

[0047] 211. Cover plate; 212. Chassis; 2121. Connecting shaft; 213. Connecting column; 210. Through hole;

[0048] 31. Drying tower; 32. First heating structure;

[0049] 61. Separation tower; 62. Second heating structure. Detailed Implementation

[0050] The technical solutions of the exemplary embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The exemplary embodiments described herein are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of this utility model.

[0051] In the description of this utility model, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more; and the term "and / or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the / described" object or "an" object are also intended to indicate one of a possible plurality of such objects.

[0052] Unless otherwise specified or stated, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Furthermore, in the description of this utility model, it should be understood that the directional terms such as "upper," "lower," "inner," and "outer" described in the exemplary embodiments of this utility model are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the exemplary embodiments of this utility model. It should also be understood that, in the context, when an element or feature is mentioned as being "upper," "lower," "inner," or "outer" of another element (one or more), it can be directly connected to the other element (one or more) "upper," "lower," "inner," or "outer," or it can be indirectly connected to the other element (one or more) "upper," "lower," "inner," or "outer" through an intermediate element.

[0054] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0055] Example 1

[0056] This embodiment provides a separation system, such as Figure 1 As shown, the separation system includes an adjusting tank 1, a feeding mechanism 2, a drying mechanism 3, and a condensing mechanism 4. The adjusting tank 1 is used to contain the raw material to be separated. The feeding mechanism 2 is connected to the adjusting tank 1 and is used to atomize the raw material to be separated, forming a spray-like material. The feeding mechanism 2 is at least partially disposed within the drying mechanism 3, which is used to heat the spray-like raw material to be separated, forming solid residue and steam. The condensing mechanism 4 is connected to the drying mechanism 3 and is used to liquefy the steam to form a liquid.

[0057] The raw material to be separated is specifically a feed solution containing 1,5-pentanediamine. The adjusting tank 1 is equipped with an inlet 100, through which the raw material to be separated can be directly added. Alternatively, various raw materials for preparing the feed solution containing 1,5-pentanediamine can be added to the adjusting tank 1 through the inlet 100, and then reacted in the adjusting tank 1 to obtain the raw material to be separated. The feed solution containing 1,5-pentanediamine can be, for example, a solution system containing 1,5-pentanediamine salt and an alkaline substance. The two react to form a solution system containing free 1,5-pentanediamine, i.e., a feed solution containing 1,5-pentanediamine.

[0058] For example, the feed inlet 100 includes a first feed inlet 101 and a second feed inlet 102. The first feed inlet 101 is used to introduce a solution system containing 1,5-pentanediamine salt. For example, the solution system containing 1,5-pentanediamine salt includes fermentation broth or enzyme conversion broth containing 1,5-pentanediamine salt. The second feed inlet 102 is used to introduce an alkaline substance. For example, the alkaline substance may include, but is not limited to, alkali metal oxides / hydroxides, alkaline earth metal oxides / hydroxides, and corresponding alkaline salts.

[0059] Specifically, if the solution system containing 1,5-pentanediamine salt is an enzyme conversion solution of 1,5-pentanediamine salt, it can be obtained by reacting a lysine salt solution with lysine decarboxylase (LDC). The lysine salt can be an inorganic or organic salt of lysine, such as commercially available lysine hydrochloride or lysine sulfate.

[0060] Specifically, if the solution system containing 1,5-pentanediamine salt is a fermentation broth containing 1,5-pentanediamine salt, when the fermentation broth containing 1,5-pentanediamine salt needs to be produced, the expression of lysine decarboxylase can be upregulated in a strain capable of producing lysine using gene technology, or lysine decarboxylase can be recombinantly expressed. This allows the lysine produced during fermentation to be simultaneously converted into pentanediamine, thereby directly obtaining a fermentation broth containing 1,5-pentanediamine salt. This embodiment does not have special requirements for the recombinant strain, as long as 1,5-pentanediamine can be obtained.

[0061] It is understood that this embodiment does not particularly limit the specific preparation method of 1,5-pentanediamine by enzyme conversion solution containing 1,5-pentanediamine salt or by direct fermentation. The specific raw materials can be selected according to actual production needs, and the specific process parameters of the enzyme conversion process can be determined to obtain an aqueous solution containing 1,5-pentanediamine salt.

[0062] The solid content (solid content) of the feed liquid containing 1,5-pentanediamine is 10% to 80%, further 20% to 70%, further 40% to 60%, for example, 30%, 40%, 50%, etc.

[0063] The feed liquid containing 1,5-pentanediamine includes 1,5-pentanediamine and water, and the content (moisture content) of 1,5-pentanediamine and water is 20% to 90%, further 30% to 80%, further 40% to 60%, for example, 40%, 50%, 60%, etc.

[0064] The 1,5-pentanediamine content in the feed solution is 8% to 75%, for example, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, etc.

[0065] For example, the shape of the adjusting tank 1 can be a cylindrical structure, a cuboid structure, etc. Along the axial direction of the adjusting tank 1, the feed inlet 100 can be provided at the top of the adjusting tank 1, and the discharge outlet is provided at the bottom of the adjusting tank 1 for discharging the raw material to be separated.

[0066] For example, the feeding mechanism 2 is connected to the outlet of the adjusting tank 1, so that the raw material to be separated output from the adjusting tank 1 is distributed into the drying mechanism 3 through the feeding mechanism 2. For example, the feeding mechanism 2 can be a feeding pipe, a feeding nozzle or a rotating nozzle. For example, the raw material to be separated can be fed into the drying mechanism 3 in a certain radius and in the form of small droplets, thin layers or the like.

[0067] For example, the heating method of the drying unit 3 can be selected from at least one of metal plate heating, steam heating, circulating water heating, heat transfer oil heating, and electric heating. Under the heating action of the drying unit 3, the raw material to be separated, which is in a liquid state, can be evaporated to achieve solid-liquid separation, forming a solid residue in a solid state and steam in a gaseous state. Specifically, the steam contains 1,5-pentanediamine, for example, the steam specifically includes 1,5-pentanediamine gas and water vapor.

[0068] For example, the condensation mechanism 4 may be a heat exchanger. Steam output from the drying mechanism 3 enters the condensation mechanism 4. The high-temperature steam is cooled and liquefied in the condensation mechanism 4 to form a liquid, so as to obtain a finished product containing 1,5-pentanediamine.

[0069] The separation system provided in this embodiment, after the raw material to be separated in the adjusting tank 1 is conveyed to the feeding mechanism 2, can distribute the raw material to be separated into the drying mechanism 3. The drying mechanism 3 heats the raw material to be separated to form solid residue and steam. The solid residue is deposited in the drying mechanism 3, and the steam enters the condensation mechanism 4 and liquefies to form liquid. This separation system has a high degree of automation and a high material handling capacity, and can obtain high-purity finished products, such as 1,5-pentanediamine, thereby achieving continuous separation of 1,5-pentanediamine.

[0070] Simultaneously, the fabric feeding mechanism 2 atomizes the raw material to be separated, forming a spray-like substance that breaks down into small droplets. The drying mechanism 3 heats the spray-like raw material, increasing the contact area between the material and the drying mechanism 3, resulting in faster drying and improved efficiency. This method also allows for increasing the solid content of the raw material; for example, it is applicable to solid content (based on dry weight) ranging from 15% to over 60%, demonstrating strong versatility.

[0071] In one embodiment, the separation system further includes a stirring assembly (not shown in the figure), which is at least partially rotatably disposed in the adjustment tank 1. The stirring assembly is used to stir the raw materials to be separated in order to ensure the uniformity of the mixing of the raw materials to be separated.

[0072] For example, the stirring assembly includes a stirring drive source and a stirring paddle. The stirring drive source is located outside the adjustment tank 1, and the stirring paddle is located inside the adjustment tank 1. The output end of the stirring drive source is connected to the stirring paddle. The stirring drive source can drive the stirring paddle to rotate relative to the adjustment tank 1 to achieve the purpose of mixing the raw materials to be separated.

[0073] In one embodiment, the separation system further includes a temperature control component (not shown in the figure). For example, the temperature control component may be at least one of metal plate heating, steam heating, heat transfer oil heating, and electric heating. The temperature control component is disposed in the adjustment tank 1 and is used to preheat the raw material to be separated so that the raw material to be separated has a certain temperature before entering the drying mechanism 3, which is beneficial to the drying efficiency of the raw material to be separated in the drying mechanism 3.

[0074] In one embodiment, such as Figure 1 As shown, the separation system also includes a feed pump 8, which is located between the adjustment tank 1 and the material distribution mechanism 2. The feed pump 8 is used to transport the raw material to be separated in the adjustment tank 1 to the material distribution mechanism 2, and the feed pump 8 provides the conveying power for the conveying of the raw material to be separated.

[0075] Specifically, the separation system includes a first infusion pipe and a second infusion pipe. One end of the first infusion pipe is connected to the outlet of the adjusting tank 1, and the other end is connected to the inlet of the feed pump 8. One end of the second infusion pipe is connected to the outlet of the feed pump 8, and the other end is connected to the material distribution mechanism 2. Under the driving action of the feed pump 8, the raw material to be separated in the adjusting tank 1 is transported to the material distribution mechanism 2 through the first infusion pipe and the second infusion pipe.

[0076] In one embodiment, the separation system further includes a filter 9 disposed between the adjustment tank 1 and the cloth feeding mechanism 2. The filter 9 is used to filter the raw material to be separated in the adjustment tank 1 to remove impurities in the raw material to be separated and improve the cleanliness of the raw material to be separated.

[0077] For example, the filter 9 can be installed in the first infusion pipe so that the raw material to be separated is filtered before entering the feed pump 8, thus preventing impurities in the raw material to be separated from entering the feed pump 8 and causing blockage of the feed pump 8.

[0078] In one embodiment, such as Figures 2-3 As shown, the fabric feeding mechanism 2 includes a rotating disk 21, which is disposed in the drying mechanism 3. The rotating disk 21 has a liquid inlet 2101 at the top along the axial direction of the rotating disk 21. The liquid inlet 2101 is used to receive the raw material to be separated from the adjusting tank 1. The rotating disk 21 has a plurality of liquid outlet holes 2102 along the circumferential direction of the rotating disk 21. The liquid outlet holes 2102 are connected to the liquid inlet 2101.

[0079] For example, the raw material to be separated output from the adjustment tank 1 enters the liquid inlet 2101 and is discharged by multiple liquid outlet holes 2102 arranged around the rotating disk 21, thereby refining the raw material to be separated and achieving the atomization effect of the raw material to be separated.

[0080] Specifically, the fabric feeding mechanism 2 also includes a rotary drive source (not shown in the figure). The rotary drive source is located outside the drying mechanism 3. The output end of the rotary drive source is connected to the rotary disk 21. The rotary drive source can drive the rotary disk 21 to rotate relative to the drying mechanism 3, so that the liquid outlet 2102 sprays out the raw material to be separated in a spray form.

[0081] The rotary drive source can be a drive motor, which can drive the rotating disk 21 to rotate relative to the drying tower 31. It adopts a high-pressure, high-speed centrifugal spray method to quickly atomize the raw material liquid to be separated into small droplets. The diameter of the sprayed raw material to be separated is about 100μm.

[0082] Specifically, the rotating disk 21 has a hollow structure with an internal cavity. A through hole 210, circular in shape, is provided on the top surface of the rotating disk 21 facing the rotary drive source. A connecting shaft 2121 passes through the through hole 210 and connects to the output end of the rotary drive source. An inlet 2101, annular in shape, is formed between the inner wall of the through hole 210 and the connecting shaft 2121 to improve the uniformity of the raw material entering the rotating disk 21.

[0083] The raw material to be separated enters the cavity of the rotating disk 21 through the liquid inlet 2101. As the rotating drive source drives the rotating disk 21 to rotate at high speed, under the centrifugal action, the raw material to be separated forms droplets with smaller particle size and is discharged from the liquid outlet 2102.

[0084] The multiple liquid outlet holes 2102 can have various distribution patterns, for example, such as Figure 2 As shown, multiple liquid outlet holes 2102 can be evenly distributed on the outer peripheral wall of the rotating disk 21, and the included angle between two adjacent liquid outlet holes 2102 is the same; it can also be, as... Figure 3 As shown, multiple layers of liquid outlet holes are provided on the outer peripheral wall of the rotating disk 21 along the axial direction of the rotating disk 21. Each layer of liquid outlet holes has multiple liquid outlet holes 2102. The multiple liquid outlet holes 2102 are arranged at equal intervals, and the liquid outlet holes 2102 corresponding to adjacent layers of liquid outlet holes are staggered. That is, the liquid outlet hole 2102 on one side of the liquid outlet hole group on both sides is located between two adjacent liquid outlet holes 2102 on the other side.

[0085] In one embodiment, such as Figure 1As shown, the drying mechanism 3 includes a drying tower 31 and a first heating structure 32. The drying tower 31 can be cylindrical, rectangular, conical, or a combination of at least two structures. The first heating structure 32 is disposed on the inner wall and / or outer wall of the drying tower 31. Exemplarily, the first heating structure 32 is a heating layer disposed on the outer wall of the drying tower 31. The first heating structure 32 heats the drying tower 31, causing the temperature of the drying tower 31 to rise. The material distribution mechanism 2 is at least partially disposed inside the drying tower 31 and is used to distribute the raw materials to be separated into the drying tower 31. The drying tower 31 is provided with a first air outlet, which is connected to the condensation mechanism 4. The first air outlet is used to discharge steam, allowing the steam discharged from the first air outlet to enter the condensation mechanism 4.

[0086] For example, the material distribution mechanism 2 is at least partially disposed above the drying tower 31 along the axial direction of the drying tower 31, so that the raw material to be separated, which is sprayed in a spray form by the material distribution mechanism 2, can fall freely from top to bottom inside the drying tower 31, thereby increasing the contact time between the raw material to be separated and the drying tower 31.

[0087] For example, the first outlet is located at the top of the drying tower 31 along the axial direction of the drying tower 31, so that steam can be discharged from the first outlet during the upward flow.

[0088] The upper part of the drying tower 31 is cylindrical, and the lower part is conical. The drying tower 31 has a large opening and a small opening. Because the large opening has a relatively large space, a material distribution mechanism 2 is at least partially located within it, meaning the material distribution mechanism 2 is at least partially situated at the top of the drying tower 31. This allows the material distribution mechanism 2 to distribute the raw materials to be separated over a larger area. A first air outlet is located at the top of the drying tower 31, allowing a large amount of steam to collect upwards to the large opening, facilitating its discharge from the first air outlet. A solid discharge port is located at the small opening of the drying tower 31. The drying tower 31 has an inclined inner wall surface. Solid residues formed within the drying tower 31 are guided by the inner wall surface to converge towards the small opening, achieving the concentration and aggregation of solid residues, facilitating their discharge from the solid discharge port.

[0089] In one embodiment, such as Figure 1 As shown, the separation system also includes a crushing mechanism 5, which is connected to the small opening of the drying tower 31. Exemplarily, the crushing mechanism 5 is connected to a solid discharge port, and the solid residue discharged from the solid discharge port enters the crushing mechanism 5, which is used to crush the solid residue inside the drying tower 31.

[0090] The crushing mechanism 5 includes a crushing drive source (not shown in the figure) and a guide (not shown in the figure). The guide has a spiral structure. The output end of the crushing drive source is connected to the guide. The crushing drive source can drive the guide to rotate, so that the guide can guide the solid residue to move along the spiral trajectory.

[0091] In this way, the spiral-structured guide can move the fixed residue away from the solid discharge port of the drying tower 31, preventing the fixed residue from accumulating at the small end of the drying tower 31. When the solid residue moves along the spiral trajectory, it has a certain tendency to tumble and move up and down, which produces a certain impact effect, which is beneficial to the crushing of the solid residue.

[0092] In one embodiment, such as Figure 1 As shown, the separation system also includes a separation mechanism 6, which is located between the drying mechanism 3 and the condensing mechanism 4 and is connected to both the drying mechanism 3 and the condensing mechanism 4, so that the steam discharged from the drying mechanism 3 is separated into solid and gas by the separation mechanism 6 and then enters the condensing mechanism 4.

[0093] Since the steam discharged from the first outlet of the drying tower 31 contains not only 1,5-pentanediamine but also carries a small amount of residue, the steam enters the separation mechanism 6 for solid-gas separation, thereby increasing the purity of the steam entering the condensation mechanism 4 and further improving the separation quality.

[0094] Specifically, the separation mechanism 6 includes a separation tower 61 and a second heating structure 62. The separation tower 61 can be cylindrical, rectangular, conical, or have at least two combinations thereof. The second heating structure 62 is disposed on the inner wall and / or outer wall of the separation tower 61. For example, the second heating structure 62 is a heating layer disposed on the outer wall of the separation tower 61. The second heating structure 62 heats the separation tower 61, causing the temperature of the separation tower 61 to rise. The separation tower 61 is located between the drying tower 31 and the condensation mechanism 4. The separation tower 61 is provided with a second gas outlet, which is connected to the condensation mechanism 4. The second gas outlet is used to discharge steam, allowing the steam discharged from the second gas outlet to enter the condensation mechanism 4.

[0095] For example, the second outlet is located at the top of the separation tower 61 along the axial direction of the separation tower 61, so that the steam can be discharged from the second outlet during the upward flow.

[0096] The upper part of the separation tower 61 is a cylindrical structure, and the lower part is a conical structure. The separation tower 61 has a large opening and a small opening. The second gas outlet is located at the large opening, meaning it is at the top of the separation tower 61. A large amount of steam can rise and collect at the large opening, and then be discharged from the second outlet. The separation tower 61 has an inclined inner wall surface. Guided by this inclined inner wall surface, solid residue formed inside the separation tower 61 can collect towards the small opening, thus achieving solid residue collection.

[0097] For example, a filter screen can also be provided at the second air outlet. The filter screen has a certain interception effect and is used to filter fixed residues in the steam, thereby further improving the filtration effect.

[0098] In one embodiment, such as Figure 1 As shown, the separation system also includes a vacuum component 7, which, exemplarily, may be a vacuum pump. The vacuum component 7 is connected to the condensation mechanism 4 and is used to extract air from the drying mechanism 3 through the condensation mechanism 4.

[0099] A vacuum environment is created inside the drying tower 31 by using vacuum component 7 to evacuate the liquid. This negative pressure environment helps lower the boiling point of the liquid, making 1,5-pentanediamine more easily vaporized at a lower temperature and reducing energy waste in the first heating structure 32. For example, 1,5-pentanediamine has a high boiling point at atmospheric pressure, but its boiling point is significantly lowered under vacuum conditions, allowing for more efficient conversion from liquid to gas.

[0100] Meanwhile, the vacuum environment makes it easier for molecules on the surface of the droplets to escape, meaning that the atomized droplets can evaporate faster, thereby accelerating the vaporization process of 1,5-pentanediamine, improving drying efficiency, and reducing the energy consumption of the first heating structure 32.

[0101] Furthermore, the function of the vacuum component 7 is not limited to the interior of the drying tower 31, but extends to the subsequent separation tower 61. Specifically, the vapor containing 1,5-pentanediamine is extracted from the drying tower 31 under vacuum conditions and enters the separation tower 61. The vacuum environment helps reduce the amount of impurities and residues carried in the vapor, enabling the separation tower 61 to more efficiently separate pure 1,5-pentanediamine vapor, improving separation efficiency and thus increasing the purity of the final product.

[0102] In another embodiment, such as Figure 1 As shown, the separation system also includes a vacuum component 7, which is connected to the drying mechanism 3 and is used to extract air from the drying mechanism 3.

[0103] In this way, the vacuum component 7 can directly extract air from the drying unit 3, reduce the pressure inside the drying tower 31, promote the rapid evaporation of atomized droplets, and improve separation efficiency, thereby significantly improving the efficiency of the entire production process and product quality.

[0104] In one embodiment, such as Figure 1 As shown, the separation system also includes a purification unit 10, which includes at least one of a distillation unit, a distillation unit, and an evaporation unit. Exemplarily, the purification unit 10 may be a distillation column. The purification unit 10 is connected to a condensation unit 4, so that the vapor containing 1,5-pentanediamine is condensed into a liquid by the condensation unit 4, and the liquid is then introduced into the purification unit 10 for distillation treatment. The purification unit 10 is used to purify the liquid to obtain the 1,5-pentanediamine product.

[0105] Example

[0106] The raw material to be separated in the adjustment tank 1 is heated to 160°C by a temperature control component. The solid content of the raw material to be separated is 34%, the mass concentration of 1,5-pentanediamine in the raw material to be separated is 60%, and the pH is 12.7.

[0107] Driven by the feed pump 8, the raw material to be separated in the adjusting tank 1, after being filtered of impurities by the filter 9, enters the feeding mechanism 2. The rotation drive source of the feeding mechanism 2 can drive the material to... Figure 2 The rotating disk 21 shown rotates relative to the drying mechanism 3, and uses high-pressure, high-speed centrifugal spray to quickly atomize the raw materials to be separated into small droplets;

[0108] Under the action of vacuum component 7, a vacuum environment is formed inside the drying tower 31 of drying mechanism 3. As the feeding mechanism 2 rotates at high speed, the raw material to be separated is uniformly atomized. The drying tower 31 heats the raw material to be separated, and the small droplets generate vapor containing 1,5-pentanediamine when heated. The vapor containing 1,5-pentanediamine carries a small amount of residue and is discharged from the drying tower 31 and enters the separation tower 61. The residue is further separated by the separation tower 61. Then, the vapor containing 1,5-pentanediamine enters the condensation mechanism 4 and condenses to form a liquid.

[0109] The condensed liquid is passed into the refining unit 10 for distillation to obtain 1,5-pentanediamine product. The purity and color test results of the obtained 1,5-pentanediamine product are shown in Table 1. The bottom temperature of the distillation column is 105℃, the top temperature is 85℃, and the pressure is -0.09MPa. The reflux ratio of the distillation column can be selected as 2:1.

[0110] In addition, as 1,5-pentanediamine is vaporized, the remaining solid residue in the drying tower 31 falls freely to the solid discharge port of the drying tower 31. The crushing mechanism 5 rolls the solid residue in a spiral to crush it, thereby obtaining solid particles. The test results of the residual amount of 1,5-pentanediamine in the solid particles are shown in Table 1.

[0111] Table 1 Product Indicator Test Results

[0112]

[0113] Example 2

[0114] This embodiment is similar to Embodiment 1, except that the specific structure of the rotating disk is different.

[0115] like Figures 4-5 As shown, the rotating disk 21 includes a cover plate 211, a base plate 212, and multiple connecting posts 213. The cover plate 211 and the base plate 212 can be of a disc structure. The liquid inlet 2101 is disposed on the cover plate 211. The base plate 212 is arranged parallel to and spaced apart from the cover plate 211 and is located below the cover plate 211 along the axial direction of the rotating disk 21. A connecting shaft 2121 is provided on the side of the base plate 212 facing the cover plate 211. The connecting shaft 2121 passes through the cover plate 211 and is connected to the output end of the rotary drive source. Multiple connecting posts 213 are disposed between the base plate 212 and the cover plate 211 and are arranged around the base plate 212. The liquid outlet 2102 is disposed between two adjacent connecting posts 213.

[0116] For example, a through hole 210 is provided on the cover plate 211. The through hole 210 has a circular structure. The connecting shaft 2121 passes through the through hole 210. An inlet 2101 is formed between the inner wall of the through hole 210 and the connecting shaft 2121. The inlet 2101 has an annular structure, which improves the uniformity of the raw materials to be separated entering the rotating disk 21.

[0117] For example, connecting posts 213 are disposed between cover plate 211 and chassis 212 to form an integral structure of chassis 212 and cover plate 211, enabling the rotary drive source to drive chassis 212 and cover plate 211 to rotate synchronously. Multiple connecting posts 213 are distributed circumferentially along the edge of chassis 212 to form a cylindrical ring structure. A centrifugal flow channel 2103 is formed between two adjacent connecting posts 213 for refining the raw material to be separated. Liquid inlet 2101 is connected to liquid outlet 2102 through centrifugal flow channel 2103.

[0118] Specifically, the raw material to be separated enters between the cover plate 211 and the base plate 212 of the rotating disk 21 through the liquid inlet 2101. Under the action of centrifugal force and its own gravity, the raw material to be separated flows from the liquid inlet 2101 to the centrifugal flow channel 2103 formed between two adjacent connecting columns 213. During the flow process, the raw material to be separated is continuously split and atomized, and finally forms droplets and is discharged from the rotating disk 21 through the liquid outlet 2102.

[0119] The cover plate 211 has the same outer radius and shape as the chassis 212. Since the cover plate 211 and chassis 212 cooperate to cover the centrifugal flow channel 2103 and connecting column 213, they provide a certain degree of sealing and protection for these components. When the rotary drive source drives the rotating disk 21 to rotate at high speed, the raw material to be separated flows within the centrifugal flow channel 2103 and forms smaller droplets that are discharged from the rotating disk 21. The cover plate 211, on the other hand, provides a certain degree of obstruction to the raw material, ensuring that the flow direction of the raw material is consistent with the radial direction of the chassis 212, thereby increasing the controllability of the raw material to be separated.

[0120] It should be noted that the embodiments of this utility model are merely one example of the principles employed by the present utility model, as shown in the accompanying drawings and described herein. Those skilled in the art will clearly understand that the principles of this utility model are not limited to any details or components of the apparatus shown in the accompanying drawings or described in the specification.

[0121] It should be understood that this invention is not limited to the detailed structure and arrangement of the components described herein. This invention can have other embodiments and can be implemented and performed in various ways. The foregoing variations and modifications fall within the scope of this invention. It should be understood that the invention disclosed and defined herein extends to all alternative combinations of two or more individual features mentioned or apparent in the text and / or drawings. All these different combinations constitute multiple alternative aspects of this invention. The embodiments described in this specification illustrate the best known mode for implementing this invention and will enable those skilled in the art to utilize this invention.

[0122] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and exemplary embodiments are to be considered as exemplary only, and the true scope and spirit of the invention are indicated by the appended claims.

[0123] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of protection of this utility model is limited only by the appended claims.

Claims

1. A separation system, characterized in that, include: Adjustment tank, the adjustment tank being used to contain the raw materials to be separated; A fabric feeding mechanism is connected to the adjustment tank. The fabric feeding mechanism is used to atomize the raw material to be separated into a spray-like form. A drying mechanism, wherein the cloth-making mechanism is at least partially disposed within the drying mechanism, the drying mechanism being used to heat the raw material to be separated in a spray form to form solid residue and steam; A condensing mechanism, connected to the drying mechanism, is used to liquefy the vapor into a liquid.

2. The separation system according to claim 1, characterized in that, The drying mechanism includes: A drying tower, wherein the fabric feeding mechanism is at least partially disposed inside the drying tower, and a first air outlet is provided at the top of the drying tower for discharging the steam, and the air outlet is connected to the condensation mechanism; The first heating structure is disposed on the inner wall and / or outer wall of the drying tower.

3. The separation system according to claim 2, characterized in that, It also includes a crushing mechanism, which is connected to the small opening of the drying tower and is used to crush the solid residue inside the drying tower; The crushing mechanism includes a crushing drive source and a guide member. The guide member has a spiral structure. The output end of the crushing drive source is connected to the guide member. The crushing drive source can drive the guide member to rotate, so that the guide member can guide the solid residue to move along a spiral trajectory.

4. The separation system according to claim 1, characterized in that, The fabric-making mechanism includes: A rotating disk is disposed within the drying mechanism. The rotating disk has a liquid inlet at its top along the axial direction. The liquid inlet is used to receive the raw material to be separated output from the adjusting tank. The rotating disk has multiple liquid outlets along the circumferential direction. The liquid outlets are connected to the liquid inlet. A rotary drive source is located outside the drying mechanism. The output end of the rotary drive source is connected to the rotary disk. The rotary drive source can drive the rotary disk to rotate relative to the drying mechanism, so that the liquid outlet hole sprays out the raw material to be separated in a spray form.

5. The separation system according to claim 4, characterized in that, The rotating disk includes: A cover plate, wherein the liquid inlet is disposed on the cover plate; The chassis is arranged parallel to and spaced apart from the cover plate. A connecting shaft is provided on the side of the chassis facing the cover plate. The connecting shaft passes through the cover plate and is connected to the output end of the rotary drive source. Multiple connecting posts are disposed between the chassis and the cover plate and arranged around the chassis. The liquid outlet is disposed between two adjacent connecting posts, the chassis and the cover plate.

6. The separation system according to claim 1, characterized in that, It also includes a separation mechanism, which is disposed between the drying mechanism and the condensing mechanism and is connected to the drying mechanism and the condensing mechanism respectively, so that the steam discharged from the drying mechanism is separated into solid and gas and then enters the condensing mechanism; The separation mechanism includes: A separation tower, wherein a second gas outlet is provided at the top of the separation tower and the second gas outlet is connected to the condensation mechanism; The second heating structure is disposed on the inner wall and / or outer wall of the separation tower.

7. The separation system according to claim 1, characterized in that, It also includes a vacuum component, which is connected to the condensation mechanism and is used to extract air from the drying mechanism through the condensation mechanism. And / or, it also includes a vacuum component, which is connected to the drying mechanism and is used to extract air from the drying mechanism.

8. The separation system according to claim 1, characterized in that, It also includes a stirring assembly, which is at least partially rotatably disposed within the adjusting tank, and the stirring assembly is used to stir the raw material to be separated; And / or, it also includes a temperature control component, which is disposed in the adjustment tank for preheating the raw material to be separated.

9. The separation system according to claim 1, characterized in that, It also includes a feed pump, which is disposed between the adjusting tank and the spreading mechanism, and the feed pump is used to transport the raw material to be separated in the adjusting tank to the spreading mechanism; And / or, it also includes a filter disposed between the adjustment tank and the fabric feeding mechanism, the filter being used to filter the raw material to be separated within the adjustment tank.

10. The separation system according to claim 1, characterized in that, It also includes a refining mechanism, which is connected to the condensation mechanism, and the refining mechanism is used to refine the liquid; The refining apparatus includes at least one of a distillation apparatus, a distillation apparatus, and an evaporation apparatus.

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