Separation apparatus for different solubility products

Abstract

This application belongs to the field of separation device technology, specifically relating to a separation device for products with different solubilities, including: a material bin, a solvent bin, a dissolution separation device, a material recovery bin, a first product collection bin, a solvent recovery bin, a solvent evaporator, a second product collection bin, and a condenser. This application, through the design of a system for the automatic flow of recycled organic solvents and materials, allows the materials to be cleaned to be continuously extracted, cleaned, and collected in a streamlined manner. This enables the batch separation of main and by-products from chemical synthesis, effectively reducing the content of by-products in the main product, increasing the purity of the main product, enhancing the value of the main product, and recovering by-products in batches for full utilization, increasing output value. Furthermore, the recycling of organic solvents reduces production costs and minimizes environmental pollution.

Description

Technical Field

[0001] This application belongs to the field of separation device technology, specifically relating to a separation device for products with different solubilities. Background Technology

[0002] In chemical synthesis, while obtaining the main product through chemical reactions, byproducts are often generated, and the main product and byproducts are mixed together. Since most main and byproducts have different solubilities in specific organic solvents, in order to purify the main product, the mixed products are usually washed with organic solvents to remove the byproducts. The washed-off byproducts need to be further extracted and separated from the washing liquid. This process is complex, consumes a large amount of organic solvents, and has high production costs. Utility Model Content

[0003] The purpose of this application is to provide a separation device for products with different solubilities to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this application adopts the following technical solution: A separation device for products with different solubilities, comprising: The material silo is configured to store the mixed products to be cleaned; A solvent tank is configured to store a cleaning solvent for cleaning the mixture; A dissolution and separation device is connected to the output ends of the material bin and the solvent bin, respectively, and is configured to use the cleaning solvent to rinse the mixed product to obtain the separated main product and the recovered solvent. A material recovery bin, which is connected to the dissolution and separation device, is configured to receive the mixed products spilled from the dissolution and separation device; A solvent recovery chamber, connected to the material recovery chamber, is configured to receive the recovered solvent separated from the material recovery chamber; A solvent evaporator, the input of which is connected to the output of the solvent recovery chamber, is configured to separate recovered gas and byproducts from the recovered solvent; A condenser, the input of which is connected to the output of the solvent evaporator and the output of which is connected to the solvent chamber, is configured to convert the recovered gas into the cleaning solvent.

[0005] This application may further include the following technical solution, wherein the dissolution and separation device includes: A first conveyor belt is inclined and its height near the material bin is lower than its height near the solvent bin. It is configured to transport the mixed product from the location of the material bin to the location of the solvent bin. The first screen, and multiple first screens are provided. The multiple first screens are fixed on the conveying surface of the first conveyor belt at a first preset distance. Two adjacent first screens and the first conveyor belt form a first space to accommodate the mixed product, so that the main product after washing is output to the main product outlet of the dissolving and separating device as the first space moves. A rinsing tank is at least inclinedly disposed below the output ends of the material bin and the solvent bin, and accommodates the upper conveying surface of the first conveyor belt. The inclination direction is parallel to the conveying direction of the first conveyor belt, so that the cleaning solvent rinses the mixed product contained in the first screen when it flows in the rinsing tank. A separation shell is inclined along the first conveyor belt and covers the first conveyor belt. The left and right ends of the separation shell are respectively connected to the material recovery bin and the first product collection bin.

[0006] This application may further include the following technical solution: the distance from the top of the rinsing tank to the output end of the solvent tank is greater than a first threshold.

[0007] This application may further include the following technical solution: the distance from the right end of the first conveyor belt to the output end of the solvent tank is greater than a second threshold.

[0008] This application may further include the following technical solution: a second screen is provided on the material recovery bin, the second screen is inclined and set directly below the left end of the first conveyor belt, the second screen is configured to separate the mixed product and the recovered solvent, and the second screen is inclined downward so that the mixed product and the recovered solvent slide into the material recovery port of the material recovery bin after separation.

[0009] This application may further include the following technical solution: the mesh count of the second screen is less than or equal to the mesh count of the first screen, and the mesh count of the first screen is 60 to 80 mesh.

[0010] The present application may further include the following technical solution: a third screen is provided on the first product collection chamber. The third screen is inclined and positioned directly below the right end of the first conveyor belt. The third screen is configured to separate the main product and the residual recycled solvent. The third screen is inclined downward so that the main product slides into the main product collection port of the first product collection chamber after being separated from the recycled solvent.

[0011] This application may further include the following technical solution, wherein the solvent evaporator includes: An evaporation chamber is configured to receive the recovered solvent and heat the recovered solvent to separate the recovered gas and the byproducts. A centrifugal pump, connected to the solvent recovery chamber, is configured to pump recovered solvent from the solvent recovery chamber to the evaporation chamber; The second conveyor belt is disposed at the bottom of the evaporation chamber and is configured to at least transport the byproduct precipitated in the evaporation chamber to the byproduct outlet of the solvent evaporator. The fourth screen, of which multiple fourth screens are provided, is fixed on the conveying surface of the second conveyor belt at a second preset distance. Two adjacent fourth screens and the second conveyor belt form a second space for accommodating the by-product, so that the by-product is output to the by-product outlet as the second space moves.

[0012] The application may further include the following technical solution: a fifth screen is provided on the second product collection chamber, the fifth screen is configured to separate the by-product and part of the recovered solvent, the fifth screen is inclined downward so that the by-product slides into the by-product collection port of the second product collection chamber after being separated from the recovered solvent.

[0013] Furthermore, this application may include the following technical solution: a buffer chamber is provided between the solvent evaporator and the second product collection chamber, and the input and output ends of the buffer chamber are respectively connected to the output end of the solvent evaporator and the input end of the second product collection chamber.

[0014] This application may further include the following technical solution: the separation device is also provided with a first recovery hopper, a second recovery hopper and a third recovery hopper, the output ends of the first recovery hopper, the second recovery hopper and the third recovery hopper are all connected to the solvent recovery chamber, and the input ends of the first recovery hopper, the second recovery hopper and the third recovery hopper are respectively connected to the second screen, the third screen and the fifth screen. Beneficial effects

[0015] This application designs a system for the automatic flow of recycled organic solvents and materials, enabling the materials to be cleaned to be continuously extracted, cleaned, and collected in a streamlined manner. This allows for the batch separation of main and by-products from chemical synthesis, effectively reducing the content of by-products in the main product, increasing the purity of the main product, enhancing the value of the main product, and recovering by-products in batches for full utilization and increased output value. Furthermore, the recycling of organic solvents reduces production costs and minimizes environmental pollution. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the separation device for products with different solubilities in this application.

[0017] The attached figures are labeled as follows: 100. Material bin; 200. Solvent bin; 300. Dissolution and separation device; 310. First conveyor belt; 320. First screen; 330. Washing tank; 340. Separation shell; 400. Material recovery bin; 410. Second screen; 500. First product collection bin; 510. Third screen; 600. Solvent recovery bin; 610. First recovery hopper; 620. Second recovery hopper; 630. Third recovery hopper; 700. Solvent evaporator; 710. Evaporation bin; 720. Centrifugal pump; 730. Second conveyor belt; 740. Fourth screen; 800. Second product collection bin; 810. Fifth screen; 820. Buffer bin; 900. Condenser. Detailed Implementation

[0018] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0019] In related technologies, chemical synthesis often generates byproducts along with the main product. Effectively improving the purity of the main product and recycling byproducts is a challenge faced by chemical synthesis companies. For main products and byproducts with different solubilities in organic solvents (taking ethanol as the solvent, where the main product is insoluble in ethanol but the byproduct is soluble in ethanol; conversely, the names of the collection components for the main and byproducts would also change), Soxhlet extraction of the main product can be used. However, this requires collecting the byproducts from the post-extraction washing solution, resulting in cumbersome procedures, poor extraction efficiency, and significant solvent and product losses.

[0020] In view of this, the embodiments of this application design a system for the automatic flow of recycled organic solvents and materials, which enables the materials to be cleaned to be continuously cleaned and collected in an assembly line manner. This allows for the batch separation of main and by-products of chemical synthesis, effectively reducing the content of by-products in the main product, increasing the purity of the main product, enhancing the value of the main product, and recovering by-products in batches for full utilization and increased output value. Furthermore, the recycling of organic solvents reduces production costs and minimizes environmental pollution.

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] refer to Figure 1 As shown, a separation device for products with different solubilities includes: Material silo 100 is configured to store mixed products to be cleaned. Optionally, material silo 100 includes a material holding container and a closed flange disposed at the bottom of the material container. In some embodiments, material silo 100 is provided with a maintenance window, and a solvent replenishment chamber is connected to the periphery of the maintenance window via a flange. In other embodiments, material silo 100 may also be equipped with a material detection probe and flange to form an automatic control system to achieve automatic feeding function. Optionally, an observation window is provided on the side wall of material silo 100 so that the user can observe the status of the mixed products in material silo 100, such as whether there is any remaining mixed product.

[0023] The solvent tank 200 is configured to store the cleaning solvent of the cleaning mixture. Optionally, the cleaning solvent is typically an organic solvent, and accordingly, the solvent tank 200 includes an organic solvent storage box and a closed flange located at the bottom of the organic solvent storage box. It should be understood that the cleaning solvent can also be an inorganic solvent, or a solvent obtained by mixing organic and inorganic solvents in a preset proportion according to a preset cleaning target. In some embodiments, a recovery valve is also provided at the bottom of the solvent tank 200, which can be opened to drain the cleaning solvent in the solvent tank 200. Optionally, an inspection port and / or a vent are also provided at the upper end of the solvent tank 200. The inspection port allows the user to easily check the status of the cleaning solvent in the solvent tank 200, and the vent allows the solvent to flow smoothly downwards.

[0024] A dissolution and separation device 300 is connected to the output ends of a material tank 100 and a solvent tank 200, respectively. The material tank 100 is positioned on the feeding side of the solvent tank 200, allowing the dissolution and separation device 300 to use the cleaning solvent within the solvent tank 200 to rinse the mixed product output from the material tank 100, thereby obtaining the separated main product and recovered solvent. The main product refers to the product remaining after removing impurities soluble in the cleaning solvent from the mixed product, and the recovered solvent refers to the solution containing some of the compounds in the mixed product.

[0025] A material recovery bin 400 is connected to the dissolution and separation device 300. The material recovery bin 400 is configured to receive the mixed product spilled from the dissolution and separation device 300. Therefore, the material recovery bin 400 is located below the left side of the dissolution and separation device 300, and a closing flange is provided at the bottom of the material recovery bin 400 to collect a sufficient amount of mixed product before transferring it. In some embodiments, the output end of the material recovery bin 400 can be connected to a material bin 100 so that the mixed material spilled in the material recovery bin 400 can be put into the material bin 100 for further washing.

[0026] The first product collection chamber 500 is connected to the dissolution and separation device 300 and is configured to receive the main product that has been completely cleaned by the dissolution and separation device 300. Therefore, the first product collection chamber 500 is located below the right side of the dissolution and separation device 300, and a closed flange is provided at the bottom of the first product collection chamber 500 to facilitate the buffering of the main product so that it can be transferred by the user after collecting a sufficient amount of main product in the first product collection chamber 500.

[0027] A solvent recovery chamber 600 is connected to a material recovery chamber 400 and a first product collection chamber 500, respectively. The solvent recovery chamber 600 is configured to receive the recovered solvent separated from the material recovery chamber 400 and the first product collection chamber 500. Therefore, the solvent recovery chamber 600 is located below the material recovery chamber 400 and the first product collection chamber 500. Optionally, a closed flange is provided at the bottom of the solvent recovery chamber 600 to achieve controlled collection and transfer of the recovered solvent. Optionally, an inspection port and / or a vent are also provided at the top of the solvent recovery chamber 600. The inspection port allows the user to easily check the status of the recovered solvent inside the solvent recovery chamber 600, and the vent allows the solvent to flow smoothly downwards.

[0028] Solvent evaporator 700, the input of which is connected to the output of solvent recovery chamber 600, is configured to separate recovered gas and byproducts from the recovered solvent.

[0029] A condenser 900 is configured to cool the recovered gas and liquefy it into a cleaning solvent. The input end of the condenser 900 is connected to the output end of the solvent evaporator 700, and the output end is connected to the solvent chamber 200. The condenser 900 is configured to cool the recovered gas and liquefy it into a cleaning solvent. The connecting pipe between the condenser 900 and the solvent evaporator 700 is insulated to form a thermally insulated pipe, isolating it from room temperature influences. This reduces the likelihood of the evaporated recovered gas liquefying back into the cleaning solvent during transport and flowing back into the solvent evaporator 700, thus improving circulation efficiency. Optionally, the distance between the solvent evaporator 700 and the condenser 900 is greater than the distance between the solvent evaporator 700 and the solvent recovery chamber 600, thereby reducing the length of the thermally insulated pipe and lowering equipment configuration costs.

[0030] This application may further include the following technical solutions, wherein the dissolution and separation device 300 includes: The first conveyor belt 310 is inclined, and the height of the first conveyor belt 310 near the material bin 100 is lower than the height of the first conveyor belt near the solvent bin 200, so that the organic solvent flowing out of the solvent bin 200 can be inclined downward along the direction of the conveyor belt to wash the continuously upward transported mixed product. The first conveyor belt 310 is configured to transport the mixed product from the position of the material bin 100 to the position of the solvent bin 200, so that the mixed product is output after being cleaned by the solvent bin 200.

[0031] Multiple first screens 320 are provided, and the multiple first screens 320 are fixed on the conveying surface of the first conveyor belt 310 at a first preset distance. Two adjacent first screens 320 and the first conveyor belt 310 form a first space for containing the mixed product. The mixed product is fixed in the first space. The cleaning solvent can flow in and out along the first screens 320 on both sides of the first space. The rinsing process is realized by the cooperation of the mesh and the movement of the first conveyor belt 310, and the main product after cleaning is output to the main product outlet of the dissolution and separation device 300 along with the movement of the first space. The mesh size of the first screens 320 is 60 mesh to 80 mesh.

[0032] The rinsing tank 330 is made of corrosion-resistant stainless steel or corrosion-resistant plastic. It is at least inclined and located below the output end of the material bin 100 and the solvent bin 200, and accommodates the upper conveying surface of the first conveyor belt 310. The inclination direction is parallel to the conveying direction of the first conveyor belt 310. The rinsing tank 330 can limit the level of the cleaning solvent, allowing the cleaning solvent to flow in the rinsing tank 330 to rinse the mixed product contained in the first space, thereby increasing the contact between the cleaning solvent and the mixed product.

[0033] The separation shell 340 is inclined along the first conveyor belt 310 and covers the first conveyor belt 310. The left and right ends of the separation shell 340 are respectively connected to the material recovery bin 400 and the first product collection bin 500.

[0034] In some embodiments, the distance h from the top of the rinsing tank 330 to the output end of the solvent tank 200 is greater than a first threshold. The higher top of the rinsing tank 330 can buffer the solvent output from the solvent tank 200, prevent the solvent from overflowing from the top of the rinsing tank 330, and allow the main product after rinsing more time to drain the solvent.

[0035] In other embodiments, the distance d from the right end of the first conveyor belt 310 to the output end of the solvent tank 200 is greater than the second threshold. By extending the distance, it is beneficial to allow the main product after rinsing more time to drain the solvent.

[0036] The inclination angle of the rinsing tank should not be set too small; otherwise, the cleaning solvent will have difficulty filling the rinsing tank, resulting in some material on the side away from the first conveyor belt not being able to fully contact the cleaning solvent, thus affecting the cleaning effect. The inclination angle of the rinsing tank should be no less than 20°. For example, the inclination angle of the rinsing tank is 20°, 30°, 45°, or 60°. As the angle increases, the shape and layout of the material bin, solvent bin, material recovery bin, solvent recovery bin, product collection bin, etc., connected to the rinsing tank can be reasonably adjusted according to the available space.

[0037] This application may further include the following technical solution: a second screen 410 is provided on the material recovery bin 400. The second screen 410 is inclined and positioned directly below the left end of the first conveyor belt 310. The second screen 410 is configured to separate the mixed product and the recovered solvent. The second screen 410 is inclined downward so that the mixed product slides into the material recovery port of the material recovery bin 400 after being separated from the recovered solvent.

[0038] Optionally, the mesh count of the second screen 410 is less than or equal to the mesh count of the first screen 320. Optionally, the mesh count of the second screen 410 is also set to 60 to 80 mesh. In some embodiments, the mesh count of the second screen 410 is less than that of the first screen 320, thereby intercepting and recovering some of the solids that pass through the first screen 320. Furthermore, the mesh count of the first screen 320 is set greater than that of the second screen 410. A larger mesh count facilitates the smooth passage of solvent through the first conveyor belt 310, reducing the occurrence of blockages and improving rinsing efficiency.

[0039] In some embodiments, a first silicone septum is provided on the edge of the first conveyor belt 310 and the edge of the first screen 320. The outer edge of the first silicone septum abuts against the inner wall of the rinsing tank 330 to reduce the probability of the mixed product flowing back into the material recovery bin 400 from the gap.

[0040] This application may further include the following technical solutions, wherein the solvent evaporator 700 includes: Evaporation chamber 710 is configured to receive recovered solvent and heat the recovered solvent to separate recovered gas and byproducts; wherein the recovered solvent is a cleaning solvent containing dissolved byproducts, and the cleaning solvent can be evaporated by heating, thereby precipitating the byproducts. The heating method of evaporation chamber 710 can be at least one of boiling water, steam, or glass wool heating jacket.

[0041] Centrifugal pump 720, connected to solvent recovery chamber 600, is configured to pump the recovered solvent in solvent recovery chamber 600 to evaporation chamber 710, so that evaporation chamber 710 does not need to be located below solvent recovery chamber 600, thus overcoming the influence of gravity on liquid flow direction.

[0042] The second conveyor belt 730 is located at the bottom of the evaporation chamber 710 and is configured to transport the by-products precipitated in the evaporation chamber 710 to the by-product outlet of the solvent evaporator 700. At the same time, the conveying and moving process of the second conveyor belt 730 can be used to stir the liquid in the evaporation chamber 710, thereby improving the evaporation efficiency.

[0043] Multiple fourth screens 740 are provided, and these screens are fixed to the conveying surface of the second conveyor belt 730 at a second preset distance. Adjacent fourth screens 740 and the second conveyor belt 730 form a second space for accommodating by-products, allowing the by-products to be discharged to the by-product outlet as the second space moves. The mesh size of the fourth screens 740 is less than or equal to that of the second screen 410 or the first screen 320. Optionally, the mesh size of the fourth screens 740 is less than 60 mesh to ensure that by-products precipitated in the evaporation chamber 710 can be scraped to the by-product outlet by the fourth screens 740.

[0044] Optionally, the length and tilt angle of the fourth screen 740 can be calculated in conjunction with data such as the radius of the drive wheel and the thickness of the track, so that the fourth screen 740 can collect the by-products precipitated at the bottom of the evaporation chamber 710.

[0045] In some embodiments, the bottom of the evaporation chamber 710 is rounded to avoid residual by-products at the corners. The size of the rounded edge is set according to the length of the third screen 510 when the shaft at the end of the second conveyor belt 730 drives it to rotate. This ensures that the by-products precipitated at the bottom can be collected as much as possible into the scraping path of the third screen 510 during the second conveyor belt 730, and then scraped to the by-product outlet for easy collection.

[0046] The application may further include the following technical solution: the bottom edge of the evaporation chamber 710 is provided with a rounded corner, and the edge of the fourth screen 740 is provided with a second silicone pad. The outer edge of the second silicone pad abuts against the bottom inner wall and the rounded corner of the evaporation chamber 710 to increase the probability of the precipitated byproducts being scraped away.

[0047] Optionally, the fourth screen 740 is configured with a digging function. For example, the top of the fourth screen 740 is slightly curved to have a digging function, so that the angle between the fourth screen 740 as a whole and the conveying direction of the second conveyor belt 730 is less than 90°. The second conveyor belt 730 can be used to dig and clean in time, and the movement of the fourth screen 740 driven by the second conveyor belt 730 can increase the agitation, which not only ensures the evaporation efficiency, but also helps to improve the collection efficiency of by-products.

[0048] In some embodiments, a fifth screen 810 is provided on the second product collection chamber 800. The fifth screen 810 is configured to separate by-products and partially recover solvent. The fifth screen 810 is inclined downward so that the by-products slide into the by-product collection port of the second product collection chamber 800 after being separated from the recovered solvent.

[0049] Optionally, a buffer chamber 820 is also provided between the solvent evaporator 700 and the second product collection chamber 800. The input and output ends of the buffer chamber 820 are connected to the output end of the solvent evaporator 700 and the input end of the second product collection chamber 800, respectively. The input end of the buffer chamber 820 is connected to the solvent evaporator 700 via a controllable flange, and the output end is connected to the second product collection chamber 800 via another controllable flange. Through the buffering effect of the buffer chamber 820, the pressure inside the solvent evaporator 700 can be kept relatively stable, avoiding the loss of recovered gas. Therefore, the flanges at both ends of the buffer chamber 820 cannot be opened simultaneously.

[0050] This application may further include the following technical solution: the separation device is also provided with a first recovery hopper 610, a second recovery hopper 620, and a third recovery hopper 630. The output ends of the first recovery hopper 610, the second recovery hopper 620, and the third recovery hopper 630 are all connected to the solvent recovery chamber 600. The input ends of the first recovery hopper 610, the second recovery hopper 620, and the third recovery hopper 630 are respectively connected to the second screen 410, the third screen 510, and the fifth screen 810. The bucket-shaped first recovery hopper 610, the second recovery hopper 620, and the third recovery hopper 630 facilitate the collection of liquid filtered from a large area. The output ends of the first recovery hopper 610, the second recovery hopper 620, and the third recovery hopper 630 are each connected to the solvent recovery chamber 600 through a controllable flange. Each bucket-shaped first recovery hopper 610, the second recovery hopper 620, and the third recovery hopper 630 can be provided with an observation window on its side wall, allowing the user to observe the liquid collection situation inside the hopper and thus decide whether to open or close the flange.

[0051] The terms "upper" and "lower" are used to describe the relative positions of the various structures in the accompanying drawings. They are only for clarity of description and are not intended to limit the scope of implementation of this application. Any changes or adjustments to the relative positions without substantially altering the technical content shall also be considered within the scope of implementation of this application.

[0052] It should be noted that, in this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] Furthermore, in this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] It will be understood by those skilled in the art that, in the description of the embodiments of this application, the term "and / or" merely indicates a relationship describing the associated objects, meaning that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, the term "at least one" indicates any combination of at least two of a plurality of options, for example, including at least one of A, B, and C, which can represent any one or more elements selected from a set including communication between A, B, and C. Moreover, the term "multiple" means two or more, unless otherwise precisely specified.

[0056] In the description of the embodiments of this application, the terms "first," "second," "third," "fourth," etc. (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A device for separating products with different solubilities, characterized in that, include: The material silo is configured to store the mixed products to be cleaned; A solvent tank is configured to store a cleaning solvent for cleaning the mixture; A dissolution and separation device is connected to the output ends of the material bin and the solvent bin, respectively, and is configured to use the cleaning solvent to rinse the mixed product to obtain the separated main product and the recovered solvent. A material recovery bin, which is connected to the dissolution and separation device, is configured to receive the mixed products spilled from the dissolution and separation device; The first product collection chamber is connected to the dissolution and separation device and is configured to receive the main product that has been completely cleaned by the dissolution and separation device. A solvent recovery chamber is connected to the material recovery chamber and the first product collection chamber, and is configured to receive the recovered solvent separated from the material recovery chamber and the first product collection chamber. A solvent evaporator, the input of which is connected to the output of the solvent recovery chamber, is configured to separate recovered gas and byproducts from the recovered solvent; The second product collection chamber is connected to the solvent evaporator and is configured to receive the by-products separated by the solvent evaporator. A condenser, the input of which is connected to the output of the solvent evaporator and the output of which is connected to the solvent chamber, is configured to cool the recovered gas to obtain the cleaning solvent.

2. The separation device for products with different solubilities according to claim 1, characterized in that, The dissolution and separation device includes: A first conveyor belt is inclined and its height near the material bin is lower than its height near the solvent bin. It is configured to transport the mixed product from the location of the material bin to the location of the solvent bin. The first screen, and multiple first screens are provided. The multiple first screens are fixed on the conveying surface of the first conveyor belt at a first preset distance. Two adjacent first screens and the first conveyor belt form a first space to accommodate the mixed product, so that the main product after washing is output to the main product outlet of the dissolving and separating device as the first space moves. A rinsing tank is at least inclinedly disposed below the output ends of the material bin and the solvent bin, and accommodates the upper conveying surface of the first conveyor belt. The inclination direction is parallel to the conveying direction of the first conveyor belt, so that the cleaning solvent rinses the mixed product contained in the first screen when it flows in the rinsing tank. A separation shell is inclined along the first conveyor belt and covers the first conveyor belt. The left and right ends of the separation shell are respectively connected to the material recovery bin and the first product collection bin.

3. The separation device for products with different solubilities according to claim 2, characterized in that, The distance from the top of the rinsing tank to the output end of the solvent tank is greater than a first threshold; and / or, the distance from the right end of the first conveyor belt to the output end of the solvent tank is greater than a second threshold.

4. The separation device for products with different solubilities according to claim 2, characterized in that, The material recovery bin is equipped with a second screen, which is inclined and positioned directly below the left end of the first conveyor belt. The second screen is configured to separate the mixed product and the recovered solvent. The second screen is inclined downward so that the mixed product slides into the material recovery port of the material recovery bin after being separated from the recovered solvent.

5. The separation device for products with different solubilities according to claim 4, characterized in that, A third screen is provided on the first product collection chamber. The third screen is inclined and positioned directly below the right end of the first conveyor belt. The third screen is configured to separate the main product and the residual recycled solvent. The third screen is inclined downward so that the main product slides into the main product collection port of the first product collection chamber after being separated from the recycled solvent.

6. The separation apparatus for products with different solubilities according to claim 5, characterized in that, The mesh count of the second screen and the third screen is less than or equal to the mesh count of the first screen, which is 60 to 80 mesh.

7. The separation apparatus for products with different solubilities according to claim 5, characterized in that, The solvent evaporator includes: An evaporation chamber configured to receive the recovered solvent and heat the recovered solvent to separate the recovered gas and the byproducts; A centrifugal pump, connected to the solvent recovery chamber, is configured to pump recovered solvent from the solvent recovery chamber to the evaporation chamber; The second conveyor belt is disposed at the bottom of the evaporation chamber and is configured to at least transport the byproduct precipitated in the evaporation chamber to the byproduct outlet of the solvent evaporator. The fourth screen, of which multiple fourth screens are provided, is fixed on the conveying surface of the second conveyor belt at a second preset distance. Two adjacent fourth screens and the second conveyor belt form a second space for accommodating the by-product, so that the by-product is output to the by-product outlet as the second space moves.

8. The separation apparatus for products with different solubilities according to claim 7, characterized in that, The second product collection chamber is provided with a fifth screen, which is configured to separate the by-product and a portion of the recovered solvent. The fifth screen is inclined downward so that the by-product slides into the by-product collection port of the second product collection chamber after being separated from the recovered solvent.

9. The separation apparatus for products with different solubilities according to claim 8, characterized in that, A buffer chamber is also provided between the solvent evaporator and the second product collection chamber. The input and output ends of the buffer chamber are respectively connected to the output end of the solvent evaporator and the input end of the second product collection chamber.

10. The apparatus of claim 8, wherein the different solubility products are separated by, The separation device is further provided with a first recovery hopper, a second recovery hopper and a third recovery hopper. The output ends of the first recovery hopper, the second recovery hopper and the third recovery hopper are all connected to the solvent recovery chamber. The input ends of the first recovery hopper, the second recovery hopper and the third recovery hopper are respectively connected to the second screen, the third screen and the fifth screen.

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