Organic salt continuous sublimation and desublimation purification device

Abstract

The utility model provides an organic salt continuous sublimation and desublimation purification device, which relates to the field of organic salt continuous purification equipment and comprises a purification component, and the purification component comprises a rotary feed valve, an evaporator, a three-way change-over valve, a first buffer tank, a second buffer tank, a condenser, a dust remover, a vacuum pump and a rotary discharge device. The evaporator is used for sublimating organic salt, the condenser is used for desublimating the organic salt, and the dust remover is used for gas-solid separation; according to the utility model, the evaporator and the condenser are arranged, the stirring shafts are arranged in the evaporator and the condenser and are matched with a hot medium and a cold medium, so that the sublimation and desublimation rates of organic salt are increased, and the three-way conversion valve is arranged between the evaporator and the condenser, so that impurities can be found in time and converted through the valve; and the whole sublimation and desublimation process is continuous, so that the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of organic salt continuous purification equipment, in particular to an organic salt continuous sublimation and desublimation purification device. Background Art

[0002] Organic salt purification is the process of purifying and refining organic salts to remove impurities and improve purity to meet specific application requirements. Organic salts can be a salt form of an organic compound. They are usually different from inorganic salts in biological activity and application fields. Common organic salt purification methods include crystallization, sublimation, extraction, etc. Sublimation is to sublimate organic matter directly from solid to gas under heating conditions to reduce impurities;

[0003] The sublimation process is a key technology to improve the purity of organic salts. At present, sublimation technology is often used to purify organic salts. Generally, a high vacuum atmosphere is obtained by combining mechanical pumps, molecular pumps, etc., and then a segmented temperature control method is used to control different temperature zones. Different materials have different sublimation temperature characteristics, and high-purity organic salts are separated and purified;

[0004] However, in the current sublimation process, the equipment used is general sublimation equipment, which generally has the problem of slow sublimation rate; and due to the inaccurate temperature control, impurities will also sublime together, and the sputtering effect of low-boiling point materials makes it difficult to separate the product and impurities; at the same time, the sublimated product often causes agglomeration and blockage of the sublimation equipment due to the use of inappropriate condensation equipment, thereby affecting the long-term normal operation of the condensation equipment; in addition, most of the current sublimation processes use intermittent processes, which makes the production equipment have a low processing capacity, resulting in low overall production efficiency.

[0005] In summary, the utility model provides an organic salt continuous sublimation and desublimation purification device to solve the above problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] An organic salt continuous sublimation and desublimation purification device comprises a purification component, wherein the purification component comprises a rotary feed valve, an evaporator, a three-way conversion valve, a first buffer tank, a second buffer tank, a condenser, a dust collector, a vacuum pump and a transfer device, wherein the evaporator is used to sublimate the organic salt, the condenser is used to desublimate the organic salt, the dust collector is used for gas-solid separation, the dust collector is installed on one side of the top of the condenser, the first buffer tank and the second buffer tank are used to store sublimated organic salt materials, the vacuum pump is used to discharge volatile components, the transfer device is used for discharging materials, the rotary feed valve is connected to the feed port of the evaporator through a pipeline, the three-way conversion valve is connected to the outlet of the evaporator through a pipeline, the inlets of the first buffer tank and the second buffer tank are both connected to the outlet of the three-way conversion valve through a pipeline, the exhaust ports of the first buffer tank, the second buffer tank and the dust collector are all connected to the air inlet of the vacuum pump through a pipeline, the outlet of the second buffer tank is connected to the inlet of the condenser through a pipeline, and the interiors of the evaporator and the condenser are both provided with a stirring shaft for accelerating the sublimation and desublimation of the material.

[0008] Furthermore, in the utility model, the two ends of the evaporator are respectively connected with a heat source inlet and a heat source outlet, and the top of the evaporator is respectively connected with a wet material inlet and a compressed nitrogen inlet.

[0009] Furthermore, in the utility model, the two ends of the condenser are respectively connected with a cooling inlet and a cooling outlet, one end of the bottom of the condenser is connected with a dry material outlet and is connected with a transfer device, and the surface of the dust collector is connected with a compressed nitrogen inlet.

[0010] Furthermore, in the utility model, the evaporator and the condenser are both spiral-shaped and horizontal, the heat carrier of the evaporator is steam or heat-conducting oil, and the cooling medium of the condenser is cooling water.

[0011] Furthermore, in the utility model, the filter bag of the dust collector is a PTFE filter bag, the vacuum pump is a Roots pump, and the rotary feed valve and the rotary discharger are both pneumatic disc valves.

[0012] Furthermore, in the utility model, the evaporator uses a heat carrier to indirectly heat the material for sublimation, and the condenser uses a circulating cooling medium as a cold carrier to indirectly cool the material for condensation.

[0013] Beneficial effects: The utility model has the following beneficial effects:

[0014] The utility model increases the sublimation and desublimation rates of organic salts by arranging an evaporator and a condenser, and by cooperating with a hot medium and a cold medium through a stirring shaft arranged in the evaporator and the condenser. A three-way conversion valve is arranged between the evaporator and the condenser, so that impurities can be found in time and converted through the valve, thereby achieving the purpose of improving the purity of materials. The entire sublimation and desublimation process is continuous, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the purification process of the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the evaporator of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the connection state of the condenser and the dust collector of the utility model.

[0018] In the figure:

[0019] 1. Rotary feed valve; 2. Evaporator; 3. Three-way conversion valve; 4. First buffer tank; 5. Second buffer tank; 6. Condenser; 7. Dust collector; 8. Vacuum pump; 9. Discharging device. DETAILED DESCRIPTION

[0020] In order to better understand the technical content of the utility model, specific embodiments are cited and described as follows in conjunction with the accompanying drawings. In this disclosure, various aspects of the utility model are described with reference to the accompanying drawings, and many illustrative embodiments are shown in the accompanying drawings. The embodiments of the present disclosure are not necessarily defined to include all aspects of the utility model. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the utility model are not limited to any implementation method. In addition, some aspects disclosed in the utility model can be used alone, or used in any appropriate combination with other aspects disclosed in the utility model.

[0021] Example 1

[0022] like Figure 1-3As shown, it is the first embodiment of the utility model, which provides an organic salt continuous sublimation and desublimation purification device, including a purification component, the purification component includes a rotary feed valve 1, an evaporator 2, a three-way conversion valve 3, a first buffer tank 4, a second buffer tank 5, a condenser 6, a dust collector 7, a vacuum pump 8 and a transfer device 9, the evaporator 2 is used to sublimate the organic salt, the condenser 6 is used to desublimate the organic salt, the dust collector 7 is used for gas-solid separation, the dust collector 7 is installed on one side of the top of the condenser 6, the first buffer tank 4 and the second buffer tank 5 are used to store the sublimated organic salt material, the vacuum pump 8 and the transfer device 9 are used to store the organic salt material, and the evaporator 2 is used to sublimate the organic salt, the condenser 6 is used to desublimate the organic salt, the dust collector 7 is used for gas-solid separation, and the dust collector 7 is installed on one side of the top of the condenser 6. The pump 8 is used to discharge volatiles, the discharging device 9 is used to discharge materials, the rotary feed valve 1 is connected to the feed port of the evaporator 2 through a pipeline, the three-way conversion valve 3 is connected to the outlet of the evaporator 2 through a pipeline, the inlets of the first buffer tank 4 and the second buffer tank 5 are connected to the outlet of the three-way conversion valve 3 through a pipeline, the exhaust ports of the first buffer tank 4, the second buffer tank 5 and the dust collector 7 are connected to the air inlet of the vacuum pump 8 through a pipeline, the outlet of the second buffer tank 5 is connected to the inlet of the condenser 6 through a pipeline, and the interior of the evaporator 2 and the condenser 6 are provided with a stirring shaft for accelerating the sublimation and desublimation of the material.

[0023] like Figure 1-3 As shown, the organic salt wet material is continuously and evenly added into the evaporator 2 through the rotary feeder 1, and the heat carrier also enters the shell of the evaporator 2. The material sublimates under the indirect heating of the heat carrier. The sublimated material enters the condenser 6 after passing through the second buffer tank 5. At the same time, a cooling medium is introduced into the jacket of the condenser 6. Under the indirect cooling of the cooling medium, the sublimated gas of the material entering the condenser 6 is condensed and sublimated into a solid product, and finally discharged through the rotary discharger 9. The volatile matter coming out of the condenser 6 enters the dust collector 7 for gas-solid separation. The separated powder falls directly into the condenser 6 by gravity and nitrogen blowing. The purified volatile matter is discharged through the vacuum pump 8. The unsublimated solid residue remaining in the evaporator 2 can be discharged through the discharge port at the bottom of the evaporator 2. In order to ensure the purity of the sublimated gas during the initial operation, the sublimated gas is collected through the first buffer tank 4 and discharged through the three-way conversion valve 3 and the vacuum pump 8. After the purity of the sublimated gas reaches the requirement, it is switched to the subsequent condenser 6 through the three-way conversion valve 3 to collect the high-purity product.

[0024] Example 2

[0025] Reference Figure 1-3 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0026] In this embodiment, both ends of the evaporator 2 are connected with a heat source inlet and a heat source outlet respectively, and the top of the evaporator 2 is connected with a wet material inlet and a compressed nitrogen inlet respectively.

[0027] The two ends of the condenser 6 are connected with a cooling inlet and a cooling outlet respectively, one end of the bottom of the condenser 6 is connected with a dry material outlet and is connected with the transfer device 9, and the surface of the dust collector 7 is connected with a compressed nitrogen inlet.

[0028] The evaporator 2 and the condenser 6 are both spiral-shaped and horizontal. The heat carrier of the evaporator 2 is steam or heat-conducting oil, and the cooling medium of the condenser 6 is cooling water.

[0029] The filter bag of the dust collector 7 is a PTFE filter bag, the vacuum pump 8 is a Roots pump, and the rotary feed valve 1 and the discharging device 9 are both pneumatic disc valves.

[0030] The evaporator 2 uses a heat carrier to indirectly heat the material for sublimation, and the condenser 6 uses a circulating cooling medium as a cold carrier to indirectly cool the material for condensation.

[0031] like Figure 1-3 As shown, the stirring shafts arranged inside the evaporator 2 and the condenser 6 can be single-axis, and a scraper can be installed on the surface of the stirring shaft to prevent the material from agglomerating and causing blockage. The organic salt purification can be operated by micro-positive pressure or vacuum negative pressure. The connecting pipes and valves used in the purification components are of universal type to facilitate subsequent maintenance. The settings of the evaporator 2 and the condenser 6 can be suitable for the purification or recovery of organic matter with a low sublimation point of 50-200°C.

[0032] When in use, firstly, the organic salt wet material is continuously and evenly added into the evaporator 2 through the rotary feeder 1, and at the same time, the heat carrier also enters the shell of the evaporator 2, and the material sublimates under the indirect heating of the heat carrier. The sublimated material enters the condenser 6 after passing through the second buffer tank 5, and at the same time, the cooling medium is introduced into the jacket of the condenser 6. Under the indirect cooling of the cooling medium, the sublimation gas of the material entering the condenser 6 is condensed and sublimated into a solid product, and finally discharged through the rotary discharger 9. The volatile matter coming out of the condenser 6 enters the dust collector. Gas-solid separation is carried out in the evaporator 7, and the separated powder falls directly into the condenser 6 by gravity and nitrogen blowing. The purified volatile matter is discharged through the vacuum pump 8, and the unsublimated solid residue remaining in the evaporator 2 can be discharged through the discharge port at the bottom of the evaporator 2. In order to ensure the purity of the sublimated gas during the initial operation, the sublimated gas is collected by the first buffer tank 4 and discharged through the three-way conversion valve 3 and the vacuum pump 8. After the purity of the sublimated gas reaches the requirement, it is switched to the subsequent condenser 6 through the three-way conversion valve 3 to condense and collect high-purity products.

[0033] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0034] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. An organic salt continuous sublimation and desublimation purification device, comprising a purification component, characterized in that: The purification component comprises a rotary feed valve (1), an evaporator (2), a three-way conversion valve (3), a first buffer tank (4), a second buffer tank (5), a condenser (6), a dust collector (7), a vacuum pump (8) and a transfer device (9), wherein the evaporator (2) is used to sublimate the organic salt, the condenser (6) is used to condense the organic salt, the dust collector (7) is used for gas-solid separation, the dust collector (7) is installed on one side of the top of the condenser (6), the first buffer tank (4) and the second buffer tank (5) are used to store the sublimated organic salt material, the vacuum pump (8) is used to discharge the volatile matter, and the transfer device (9) is used to discharge the volatile matter. The rotary feed valve (1) is connected to the feed port of the evaporator (2) through a pipeline, the three-way conversion valve (3) is connected to the outlet of the evaporator (2) through a pipeline, the inlets of the first buffer tank (4) and the second buffer tank (5) are connected to the outlet of the three-way conversion valve (3) through a pipeline, the exhaust ports of the first buffer tank (4), the second buffer tank (5) and the dust collector (7) are connected to the air inlet of the vacuum pump (8) through a pipeline, the outlet of the second buffer tank (5) is connected to the inlet of the condenser (6) through a pipeline, and the evaporator (2) and the condenser (6) are both provided with a stirring shaft inside to accelerate the sublimation and condensation of the material.

2. The organic salt continuous sublimation and desublimation purification device as claimed in claim 1, characterized in that: The two ends of the evaporator (2) are respectively connected to a heat source inlet and a heat source outlet, and the top of the evaporator (2) is respectively connected to a wet material inlet and a compressed nitrogen inlet.

3. The organic salt continuous sublimation and desublimation purification device as claimed in claim 1, characterized in that: The two ends of the condenser (6) are respectively connected to a cooling inlet and a cooling outlet, one end of the bottom of the condenser (6) is connected to a dry material outlet and is connected to a transfer device (9), and the surface of the dust collector (7) is connected to a compressed nitrogen inlet.

4. The organic salt continuous sublimation and desublimation purification device as claimed in claim 1, characterized in that: The evaporator (2) and the condenser (6) are both spiral-shaped and horizontal. The heat carrier of the evaporator (2) is steam or heat-conducting oil, and the cooling medium of the condenser (6) is cooling water.

5. The organic salt continuous sublimation and desublimation purification device as claimed in claim 1, characterized in that: The filter bag of the dust collector (7) is a PTFE filter bag, the vacuum pump (8) is a Roots pump, and the rotary feed valve (1) and the discharging device (9) are both pneumatic disc valves.

6. The organic salt continuous sublimation and desublimation purification device as claimed in claim 1, characterized in that: The evaporator (2) uses a heat carrier to indirectly heat the material for sublimation, and the condenser (6) uses a circulating cooling medium as a cold carrier to indirectly cool the material for condensation.

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