Decarboxylation equipment and system for continuously preparing PSVE

Abstract

The utility model relates to the field of generation equipment, and provides a decarboxylation device and system for continuously preparing PSVE, and the decarboxylation device comprises a feeding mechanism, a decarboxylation reaction chamber and a PSVE collector, the feeding mechanism is connected with the decarboxylation reaction chamber and is used for spraying a specified solution into the decarboxylation reaction chamber; a solution can enter the decarboxylation reaction chamber in an atomized liquid drop state, the reaction efficiency is improved, and powder and PSVE gas are generated; the decarboxylation reaction chamber is communicated with the PSVE collector so as to collect the generated PSVE gas; the PSVE collector is used for converting PSVE gas into a PSVE product and inputting the PSVE product into the collecting tank, through the arrangement of the feeding mechanism, a specified solution can continuously react in the decarboxylation reaction chamber, and through the arrangement of the PSVE collector, the gas-phase PSVE gas can enter the PSVE collector for further purification, so that the PSVE is prevented from remaining in the decarboxylation reaction chamber and carrying out other reactions with raw materials or the PSVE collector; therefore, impurities are generated; through the setting, the production efficiency and the yield of the PSVE can be improved respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment, in particular to a decarboxylation device and a system for continuously preparing PSVE. Background Art

[0002] Perfluoro-2-(2-sulfonylfluoroethoxy)propyl vinyl ether (PSVE for short) is a colorless transparent liquid. It is an important comonomer of a widely used polymer organic fluorine material. It can be copolymerized with other monomers to prepare fluororesins, fluororubbers and other materials with special functions used under specific conditions. It is an indispensable main monomer for the preparation of perfluorosulfonic acid ion exchange resins. Its main function is to introduce functional sulfonic acid group chains into polymers. It was first developed and widely used as a functional membrane material in the 1970s. It has excellent heat resistance, mechanical properties, electrochemical properties and chemical stability, and is therefore widely used in the chlor-alkali industry and fuel cell industry.

[0003] There are two main methods for the synthesis of PSVE in the industrial route at present: 1) Sulfonyl fluorination method: This method first synthesizes sulfonyl chloride or sulfite containing perfluorovinyl through different raw materials, and then prepares PSVE through fluorination of fluorination reagent. CN105753742A reports a method of adding perfluoro iodoacetyl fluoride and hexafluoropropylene oxide in a solvent, and then cracking and preparing perfluoro iodo olefin ether monomer in a solvent, and then preparing perfluoro olefin ether sulfite by a mild reaction of the monomer. The sulfite intermediate is then chlorinated with a chlorinating agent to prepare perfluoro olefin ether sulfonyl chloride, and finally the perfluoro olefin ether sulfonyl chloride is subjected to a mild phase transfer catalytic fluorination reaction to prepare the desired perfluoro olefin ether sulfonyl fluoride monomer in high yield. Also similar are CN108863854B and US7005545, and the raw materials of this method are not easy to obtain, and the yield is low, and the three wastes are large. 2) Thermal decarboxylation method: Different from the first method, a precursor containing a sulfonyl fluoride group is first synthesized, and then carbonate is added for heating and decarboxylation. For example, KR101956826B1, US3560568A and CN 112250603 A all use pre-synthesized perfluorosulfonyl fluoride containing an acyl fluoride end group (synthesis see Macromolecules, Vol. 35, No. 4, 2002) to heat in the presence of carbonate to generate the product.

[0004] The main problem of the above two PSVE preparation methods is that the generated PSVE cannot be separated from the reaction system in time, and will further react with the raw materials or itself to generate various impurities, thereby affecting the yield of PSVE. Utility Model Content

[0005] After long-term production practice, it was found that the main problem of the existing PSVE preparation method is that the generated PSVE cannot be separated from the reaction system in time, and will further react with the raw materials or itself to generate a variety of impurities, thereby affecting the yield of PSVE, and it is not easy to carry out continuous production, thus leading to the main technical problem of low production efficiency.

[0006] The utility model aims to provide a decarboxylation device for continuously preparing PSVE, the decarboxylation device comprising a feeding mechanism, a decarboxylation reaction chamber and a PSVE collector; the feeding mechanism is connected with the decarboxylation reaction chamber and is used for spraying a specified solution into the decarboxylation reaction chamber; the decarboxylation reaction chamber is connected with the PSVE collector, the PSVE collector is used for collecting PSVE gas generated by the reaction of the specified solution sprayed in the decarboxylation reaction chamber; the PSVE collector is used for converting the PSVE gas into a PSVE product and inputting the PSVE product into a collection tank.

[0007] In one embodiment, a contact plate and a first driving member are connected in the decarboxylation reaction chamber; the contact plate is formed with a first surface and a second surface with a heating component, and the first surface and the second surface are used for contacting the designated solution to promote the reaction of the designated solution; the first driving member is connected to the contact plate, and is used to drive the connecting plate to rotate relative to the decarboxylation reaction chamber so that the first surface and the second surface are alternately facing the feeding mechanism.

[0008] In one embodiment, the contact plate includes at least two contact plates; the two contact plates are respectively rotatably connected to the decarboxylation reaction chamber and rotate relative to the decarboxylation reaction chamber under the drive of the first driving member; the axial projections of the two contact plates are not parallel.

[0009] In one embodiment, the feeding mechanism is a high-pressure atomizing nozzle, and the aperture of the high-pressure atomizing nozzle is 0.2-0.6 mm.

[0010] In one embodiment, the PVSE collector includes a cyclone separator, a condenser, a stratification tank and a collection tank, which are connected in sequence; the cyclone separator is connected to the decarboxylation reaction chamber, and the PVSE gas passes through the cyclone separator, the condenser and the stratification tank in sequence to generate a solvent and a PVSE product; the collection tank includes a solvent collection tank and a product collection tank, both of which are connected to the stratification tank, and are respectively used to collect the solvent and the PVSE product separated in the stratification tank.

[0011] In one embodiment, the solvent collection tank is connected to a first recovery pump, and the first recovery pump is used to pump the solvent out of the solvent collection tank; the product collection tank is connected to a second recovery pump, and the second recovery pump is used to pump the PSVE product out of the product collection tank.

[0012] In one embodiment, a powder conveying mechanism is connected to the bottom of the decarboxylation reaction chamber; the powder generated after the reaction of the designated solution enters the powder conveying mechanism through the bottom of the decarboxylation reaction chamber; the powder conveying mechanism is used to convey the powder to an external container.

[0013] In one embodiment, the powder conveying mechanism includes a second driving member, a conveying shell and a conveying screw; the second driving member is drivingly connected to the conveying screw, and the conveying screw is rotatably connected in the conveying shell; the conveying shell is formed with an inlet and an outlet, which are respectively arranged on both sides of the conveying screw, the inlet is connected to the bottom of the decarboxylation reaction chamber, and the outlet is connected to an external container; when the powder enters the conveying shell through the inlet, the conveying screw, driven by the second driving member, conveys the powder to the outlet for discharge, so as to be conveyed to an external container.

[0014] In one embodiment, circulating heat transfer oil is arranged in the conveying shell; the conveying shell is connected to the PSVE collector to receive the PSVE gas generated by heating of the heat transfer oil.

[0015] The utility model aims to provide a decarboxylation system on the other hand. The decarboxylation system at least comprises the decarboxylation device for continuously preparing PSVE.

[0016] The utility model discloses a decarboxylation device for continuously preparing PSVE, which comprises a feeding mechanism, a decarboxylation reaction chamber and a PSVE collector; the feeding mechanism is connected with the decarboxylation reaction chamber and is used for spraying a specified solution into the decarboxylation reaction chamber; the solution can enter the decarboxylation reaction chamber in the state of atomized droplets, and the reaction efficiency is improved to generate powder and PSVE gas; the decarboxylation reaction chamber is connected with the PSVE collector to collect the generated PSVE gas; the PSVE collector is used for converting the PSVE gas into a PSVE product and inputting the PSVE product into a collection tank; the feeding mechanism is arranged so that the specified solution can react continuously in the decarboxylation reaction chamber; the PSVE collector is arranged so that the gaseous PSVE gas can enter the PSVE collector for further purification, and the PSVE is prevented from remaining in the decarboxylation reaction chamber and reacting with the raw material or itself in other ways, thereby generating impurities; the above-mentioned arrangements can respectively improve the production efficiency and yield of PSVE.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic implementation modes and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0019] Figure 1 The present invention is a schematic diagram of a decarboxylation device for continuously preparing PSVE according to an embodiment of the present invention.

[0020] Description of reference numerals:

[0021] 1. Feeding mechanism; 11. High-pressure atomizing nozzle; 2. Decarboxylation reaction chamber; 21. Contact plate; 3. Powder conveying mechanism; 4. Cyclone separator; 5. Condenser; 6. Stratification tank; 7. Solvent collecting tank; 8. Product collecting tank. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the utility model described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices; "fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connection, welding or bonding, etc.

[0025] Figure 1 This is a schematic diagram of a decarboxylation device for continuously preparing PSVE according to an embodiment of the utility model. Figure 1 ;

[0026] The utility model aims to provide a decarboxylation device for continuously preparing PSVE, the decarboxylation device comprising a feeding mechanism 1, a decarboxylation reaction chamber 2 and a PSVE collector; the feeding mechanism 1 is connected with the decarboxylation reaction chamber 2 and is used for spraying a specified solution into the decarboxylation reaction chamber 2; the decarboxylation reaction chamber 2 is connected with the PSVE collector, the PSVE collector is used for collecting PSVE gas generated by the reaction of the specified solution sprayed in the decarboxylation reaction chamber 2; the PSVE collector is used for converting the PSVE gas into a PSVE product and inputting the PSVE product into a collection tank.

[0027] The utility model discloses a decarboxylation device for continuously preparing PSVE, which comprises a feeding mechanism 1, a decarboxylation reaction chamber 2 and a PSVE collector; the feeding mechanism 1 is connected with the decarboxylation reaction chamber 2 and is used for spraying a specified solution into the decarboxylation reaction chamber 2; the solution can enter the decarboxylation reaction chamber 2 in the state of atomized droplets, and the reaction efficiency is improved to generate powder and PSVE gas; the decarboxylation reaction chamber 2 is connected with the PSVE collector to collect the generated PSVE gas; the PSVE collector is used for converting the PSVE gas into a PSVE product and inputting the PSVE product into a collection tank; the feeding mechanism 1 is arranged so that the specified solution can react continuously in the decarboxylation reaction chamber 2; the PSVE collector is arranged so that the gaseous PSVE gas can enter the PSVE collector for further purification, so that the PSVE is prevented from remaining in the decarboxylation reaction chamber 2 and reacting with raw materials or itself in other ways, thereby generating impurities; the above-mentioned arrangements can respectively improve the production efficiency and yield of PSVE.

[0028] In the embodiment of the utility model, the decarboxylation equipment includes a feeding mechanism 1; the feeding mechanism 1 is used to spray a specified solution into the decarboxylation reaction chamber 2, and the solution can be a carboxylate solution; the feeding mechanism 1 can be a high-pressure atomizing nozzle 11, and the aperture of the high-pressure atomizing nozzle 11 is 0.2-0.6 mm, wherein the particle size of the atomized droplets of the carboxylate solution is closely related to the aperture and pressure, and under the conditions of pressure and nozzle aperture, the salt solution can be quickly atomized into tiny droplets with a diameter of 100-300um, greatly increasing the specific surface area of ​​the droplets, and can be quickly heated to the required reaction temperature in a short time, avoiding the generation of various impurities, and improving the reaction yield. Among them, the decarboxylation reaction chamber 2 is preheated in advance to facilitate the reaction of the specified solution. The feeding mechanism 1 is a high-pressure atomizing nozzle 11, and its high-pressure power source is nitrogen, and the nitrogen pressure is 0.2-2.0MPa. Nitrogen is used because nitrogen can not only provide the pressure required for the feeding nozzle, but also effectively reduce the risk of solvent flammability in the salt solution.

[0029] The output end of the feeding mechanism 1 is connected to the decarboxylation reaction chamber 2, which is a place for the carboxylate solution to react. A reaction chamber is formed in the decarboxylation reaction chamber 2, and the cavity is filled with a specified gas, specifically, nitrogen. The decarboxylation reaction chamber 2 heats the nitrogen to a specified temperature to promote the decarboxylation of the carboxylate solution, wherein the specified temperature can be 180°C to 250°C. Specifically, the decarboxylation reaction chamber 2 adopts Haver fast electric heating and is connected to a temperature controller to control the temperature in the reaction chamber.

[0030] The decarboxylation reaction chamber 2 is connected to the PSVE collector through a pipeline so that the PSVE gas generated by the reaction of the designated solution sprayed in the decarboxylation reaction chamber 2 enters the decarboxylation reaction chamber 2; the PSVE collector is used to convert the PSVE gas into a PSVE product and input it into a collection tank, thereby realizing the preparation of PVSE. Specifically, the PSVE collector includes a cyclone separator 4, a condenser 5, a stratification tank 6 and a collection tank, which are connected in sequence; the cyclone separator 4 is connected to the decarboxylation reaction chamber 2, so that the PVSE gas can pass through the cyclone separator 4, the condenser 5 and the stratification tank 6 in sequence, wherein the cyclone separator 4 and the condenser 5 can purify and condense the PVSE gas to obtain separated PVSE products and solvents, and the PVSE products and solvents are input into the stratification tank 6. By setting the position of the output pipeline and controlling the valve opening in the pipeline, the interface height is controlled to achieve continuous separation, that is, the PVSE product and the solvent are diverted, so that the generated solvent and the PVSE product enter different collection tanks respectively. Specifically, the collection tank includes a solvent collection tank 7 and a product collection tank 8, both of which are connected to the stratification tank 6; respectively used to collect the solvent and the PVSE product separated in the stratification tank 6. The setting of the stratification tank 6 can realize continuous stratification of PSVE, thereby cooperating with the continuous feeding of the feeding mechanism 1 to realize continuous production of PSVE.

[0031] Furthermore, the solvent collection tank 7 is connected to a first recovery pump, which is used to pump the solvent out of the solvent collection tank 7; the product collection tank 8 is connected to a second recovery pump, which is used to pump the PSVE out of the product collection tank 8. Through the arrangement of the first recovery pump and the second recovery pump, the collection tank and the product collection tank 8 can continuously collect the solvent and the product, thereby cooperating with the continuous production of the PSVE. The recovered solvent is reused multiple times through the discharge pump, and the PSVE can be continuously transported to the post-processing system.

[0032] In one embodiment, a contact plate 21 and a first driving member are connected to the decarboxylation reaction chamber 2; the contact plate 21 is formed with a first surface and a second surface with a heating component, and the first surface and the second surface are used for contact with a specified solution to promote the reaction of the specified solution; the first driving member is connected to the contact plate 21, and is used to drive the connecting plate to rotate relative to the decarboxylation reaction chamber 2 so that the first surface and the second surface are alternately facing the feeding mechanism 1.

[0033] In the embodiment of the utility model, a contact plate 21 and a first driving member are connected in the decarboxylation reaction chamber 2; the first driving member can be a driving motor, which is transmission-connected to the contact plate 21, and the contact plate 21 is rotationally connected in the decarboxylation reaction chamber 2, and can rotate in the decarboxylation reaction chamber 2 under the drive of the driving motor, wherein the contact plate 21 is formed with a first surface and a second surface with a heating component, and the first surface and the second surface are used for contacting with a specified solution, and when the salt solution sprayed by the feeding mechanism 1 reacts with the hot nitrogen, the unreacted liquid and the powder after the reaction will fall on the first surface or the second surface, and further decarboxylation reaction will be carried out under the heating of the heating component, so that the gas-phase PSVE gas is obtained and enters the PSVE collector; specifically, two contact plates 21 can be provided, and the two contact plates 21 are rotationally connected to the decarboxylation reaction chamber 2 respectively, and rotate relative to the decarboxylation reaction chamber 2 under the drive of the first driving member; the projections of the two contact plates 21 in the axial direction are not parallel, so as to ensure that the falling specified solution and powder can be caught; and the powder on the surface of the contact plate 21 is turned over to the bottom of the decarboxylation reaction chamber 2 during the rotation process.

[0034] Specifically, the two contact plates 21 are both heated by winding with a resistance wire and connected to a temperature controller. The two contact plates 21 can be 45 to 90 degrees in the axial direction, and the driving motor can share a set of sprocket chains, so that the rotation speeds of the two are always synchronized. When the decarboxylation reaction is carried out, the two contact plates 21 are rotated simultaneously by a variable frequency motor, and the generated dry powder is turned to the bottom conical discharge port and enters the powder conveyor. The contact plate 21 is a rectangular parallelepiped structure. Preferably, the double-layer rotating contact plate 21 has a thickness of 3 to 5 cm and a rotation speed of 5 to 50 rpm.

[0035] In one embodiment, a powder conveying mechanism 3 is connected to the bottom of the decarboxylation reaction chamber 2; the powder generated after the specified solution reacts enters the powder conveying mechanism 3 through the bottom of the decarboxylation reaction chamber 2; the powder conveying mechanism 3 is used to convey the powder to an external container.

[0036] In the embodiment of the utility model, the decarboxylation reaction chamber 2 is connected to a powder conveying mechanism 3, which is arranged at the bottom of the decarboxylation reaction chamber 2 for receiving powder and conveying the powder to an external container.

[0037] Specifically, the powder conveying mechanism 3 includes a second driving member, a conveying shell and a conveying screw; the second driving member is drivingly connected to the conveying screw, and the conveying screw is rotatably connected in the conveying shell; the conveying shell is formed with an inlet and an outlet, which are respectively arranged on both sides of the conveying screw, the inlet is connected to the bottom of the decarboxylation reaction chamber 2, and the outlet is connected to an external container; when the powder enters the conveying shell through the inlet, the conveying screw, driven by the second driving member, conveys the powder to the outlet for discharge, so as to be conveyed to an external container.

[0038] Among them, circulating heat transfer oil is arranged in the conveying shell; the conveying shell is connected with the PSVE collector to receive the PSVE gas generated under the heating of the heat transfer oil, so that the powder can be made drier, thereby facilitating transportation, and at the same time, the unreacted carboxylate solution therein can be further decomposed to obtain PSVE gas, thereby improving the yield.

[0039] Provide a specific embodiment,

[0040] Before the device is used, each heating and cooling device is preheated or cooled to the required temperature, and the contact plate 21 and the powder screw conveyor are operated at a certain speed. When in use, the prepared salt solution is passed through a metering pump and nitrogen into the high-pressure atomizing nozzle 11, and atomized to form tiny droplets. The droplets are uniformly contacted with the hot nitrogen in the decarboxylation reaction chamber 2, and the temperature is rapidly increased for decarboxylation. The unreacted droplets are uniformly dropped on the rotating contact plate 21 for further temperature increase and decarboxylation. The generated solid powder is rapidly separated from the gas phase, and the powder falls to the powder conveying mechanism 3 for output as the rotating contact plate 21 rotates. The gas phase (including solvent, PSVE, CO2 and nitrogen) rapidly leaves the decarboxylation reactor and is collected separately by the cyclone separator 4, the condenser 5, and the layering tank 6 for the solvent and the product PSVE. The solvent is collected in the solvent collection tank 7, and the product PSVE is collected in the product collection tank 8, and the powder is continuously transported. The collected PSVE is subjected to conventional distillation and purification to obtain pure PSVE, and the solvent is recycled for the preparation reaction of the salt solution. The preferred nitrogen pressure of the embodiment is 0.2-2.0 MPa, the aperture of the atomizing nozzle is 0.2-0.6 mm, the heating temperature is 180° C.-250° C., the two double-layer rotating contact plates 21 form an angle of 45-90° with each other, the thickness of the double-layer rotating contact plate 21 is 3-5 cm, and the rotation speed of the double-layer rotating contact plate 21 is 5-50 rpm. Those skilled in the art can make appropriate selections.

[0041] Thereby, the following technical effects can be achieved:

[0042] 1. Realize continuous reaction. Through continuous spray feeding, continuous PSVE stratification and continuous output of powder, the whole decarboxylation reaction is realized continuously;

[0043] 2. Suppress by-products and improve yields. The salt solution is fed through a nozzle atomization to form fine droplets, which greatly increases the specific surface area of ​​the droplets, thereby achieving uniform heating and rapid decarboxylation. At the same time, during the reaction, the generated PSVE gas phase and solid phase are quickly separated, shortening the residence time of PSVE in the system, further suppressing the occurrence of side reactions, and improving the reaction yield. A specific implementation result is provided, as shown in the following table:

[0044] Table 1 Example results

[0045]

[0046] Comparative Example

[0047] In a 1L round-bottom flask with a stirrer and a condenser, 500g of the prepared salt solution was added, and then the vacuum degree was evacuated to 0.095Mpa, and the temperature was slowly raised to 210°C. The generated gas and PSVE were collected and separated by a condenser. The crude PSVE in the lower layer (content 89%) was purified by distillation, and the product yield was 84%.

[0048] The utility model aims to provide a decarboxylation system on the other hand. The decarboxylation system at least comprises the decarboxylation device for continuously preparing PSVE.

[0049] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0050] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0051] In the several embodiments provided by the present utility model, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0052] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0053] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0054] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the utility model, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a mobile terminal, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the utility model.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A decarboxylation device for continuously preparing PSVE, characterized in that, The decarboxylation device comprises a feeding mechanism (1), a decarboxylation reaction chamber (2) and a PSVE collector; The feeding mechanism (1) is connected to the decarboxylation reaction chamber (2) and is used to spray a designated solution into the decarboxylation reaction chamber (2); The decarboxylation reaction chamber (2) is in communication with the PSVE collector, and the PSVE collector is used to collect PSVE gas generated by a reaction of a designated solution sprayed into the decarboxylation reaction chamber (2); The PSVE collector is used to convert the PSVE gas into PSVE products and input them into a collection tank.

2. The decarboxylation device for continuously preparing PSVE according to claim 1, characterized in that The decarboxylation reaction chamber (2) is connected with a contact plate (21) and a first driving member; The contact plate (21) is formed with a first surface and a second surface with a heating component, and the first surface and the second surface are used for contacting the designated solution to promote the designated solution to react; The first driving member is connected to the contact plate (21) and is used to drive the connecting plate to rotate relative to the decarboxylation reaction chamber (2), so that the first surface and the second surface are alternately oriented toward the feeding mechanism (1).

3. The decarboxylation device for continuously preparing PSVE according to claim 2, characterized in that, The contact plate (21) comprises at least two contact plates (21); The two contact plates (21) are respectively connected to the decarboxylation reaction chamber (2) for rotation, and rotate relative to the decarboxylation reaction chamber (2) under the driving of the first driving member; The projections of the two contact plates (21) in the axial direction are not parallel.

4. The decarboxylation device for continuously preparing PSVE according to claim 1, characterized in that The feeding mechanism (1) is a high-pressure atomizing nozzle (11), and the aperture of the high-pressure atomizing nozzle (11) is 0.2 to 0.6 mm.

5. The decarboxylation device for continuously preparing PSVE according to claim 1, characterized in that, The PVSE collector comprises a cyclone separator (4), a condenser (5), a stratification tank (6) and a collection tank, which are connected in sequence; The cyclone separator (4) is connected to the decarboxylation reaction chamber (2), and the PVSE gas passes through the cyclone separator (4), the condenser (5) and the stratification tank (6) in sequence to generate a solvent and a PVSE product; The collecting tank comprises a solvent collecting tank (7) and a product collecting tank (8), both of which are connected to the stratification tank (6) and are used to collect the solvent and the PVSE product separated in the stratification tank (6), respectively.

6. The decarboxylation device for continuously preparing PSVE according to claim 5, characterized in that The solvent collection tank (7) is connected to a first recovery pump, and the first recovery pump is used to pump the solvent out of the solvent collection tank (7); The product collection tank (8) is connected to a second recovery pump, and the second recovery pump is used to pump the PSVE product out of the product collection tank (8).

7. The decarboxylation device for continuously preparing PSVE according to claim 1, characterized in that The bottom of the decarboxylation reaction chamber (2) is connected to a powder conveying mechanism (3); The powder generated after the reaction of the designated solution enters the powder conveying mechanism (3) through the bottom of the decarboxylation reaction chamber (2); The powder material conveying mechanism (3) is used to convey the powder material to an external container.

8. The decarboxylation device for continuously preparing PSVE according to claim 7, characterized in that The powder material conveying mechanism (3) comprises a second driving member, a conveying housing and a conveying screw; The second driving member is drivingly connected to the conveying screw, and the conveying screw is rotatably connected in the conveying housing; The conveying housing is formed with an inlet and an outlet, which are respectively arranged on both sides of the conveying screw, the inlet is communicated with the bottom of the decarboxylation reaction chamber (2), and the outlet is communicated with an external container; When the powder enters the conveying housing through the inlet, the conveying screw, driven by the second driving member, conveys the powder to the outlet for discharge, so as to be conveyed to an external container.

9. The decarboxylation device for continuously preparing PSVE according to claim 8, characterized in that Circulating heat transfer oil is arranged in the conveying shell; The conveying shell is communicated with the PSVE collector to receive the PSVE gas generated by heating of the thermal oil.

10. A decarboxylation system, characterized in that, The decarboxylation system comprises at least the decarboxylation equipment for continuously preparing PSVE according to any one of claims 1 to 9.

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