Synthetic equipment of organic silicon polyurethane copolymer

Abstract

The utility model discloses synthesis equipment of an organic silicon polyurethane copolymer, which comprises a kettle body, a discharging structure and a sealing structure, and a reaction cavity is formed in the kettle body; the discharging structure comprises a discharging pipe and a filtering pipe, the filtering pipe is arranged in the reaction cavity of the kettle body, a plurality of filtering holes for filtering materials are formed in the peripheral surface of the filtering pipe, and the discharging pipe is in butt joint communication with the discharging end of the filtering pipe; the sealing structure comprises a driving part and a sealing pipe arranged between the discharging pipe and the filtering pipe in a sliding mode, and the driving part is used for driving the sealing pipe to slide into the filtering pipe to seal a first station of the filtering hole and move away from a second station of the filtering pipe; according to the device, the filter pipe is arranged in the kettle body to filter materials, so that impurities in reaction products are removed, the purity of the products is improved, the quality and the performance of the products are ensured not to be influenced by incompletely reacted solids, and filtered solid particles can continue to react in subsequent synthesis work.

Description

Technical Field

[0001] The utility model relates to the technical field of organosilicon chemical industry, in particular to a synthesis device for organosilicon polyurethane copolymer. Background Art

[0002] Silicone-polyurethane copolymers (Si-PU) combine the advantages of silicone and polyurethane polymers. These materials typically exhibit excellent flexibility, heat and weather resistance, and tear strength. The synthesis of these copolymers typically requires laboratory or industrial production, involving multiple chemical reaction steps, including prepolymer synthesis, chain extension, and cross-linking.

[0003] The patent with publication number CN206304744U provides a synthesis equipment for silicone-polyurethane copolymer, including a synthesis kettle body, a stirring device and a temperature control device. The synthesis kettle body includes an upper synthesis kettle body and a lower synthesis kettle body, which are interlocked and connected by a hinge. A sealing ring is provided between the upper synthesis kettle body and the lower synthesis kettle body. A feed port, an exhaust port and a temperature test port are provided on the upper synthesis kettle body. The lower synthesis kettle body includes an inner shell and an outer shell. Multiple groups of heating devices are provided between the inner shell and the outer shell. The heating devices are electromagnetic heating. The multiple groups of heating devices are respectively connected to the temperature control device. A discharge port is provided at the bottom of the lower synthesis kettle body. The temperature inside the lower synthesis kettle body can be well controlled by the temperature control device.

[0004] However, in actual operation, the raw materials may not be completely dissolved or the reaction may be incomplete, resulting in some solid particles remaining in the raw materials. After the synthesis work is completed, these solid particles will be discharged together with the materials, which affects the quality of the product. It is necessary to set up an additional filtering device to remove the unreacted solids or other impurities. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies and propose a synthesis device for silicone polyurethane copolymers to solve the technical problem in the prior art that solid particles will remain during production of the synthesis device and the solid particles will be discharged together with the material, affecting the quality of the product.

[0006] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a synthesis device for an organosilicon polyurethane copolymer, comprising: a kettle body, a discharge structure and a sealing structure, wherein a reaction chamber is formed inside the kettle body; the discharge structure comprises a discharge pipe and a filter pipe, the filter pipe is arranged inside the reaction chamber of the kettle body, and a plurality of filter holes for filtering materials are formed on the outer peripheral surface of the filter pipe, and the discharge pipe is connected to one end of the filter pipe at which the material is discharged; the sealing structure comprises a driving member and a sealing pipe slidably arranged between the discharge pipe and the filter pipe, the driving member being used to drive the sealing pipe to slide to a first station in the filter pipe to seal the filter holes and to a second station away from the filter pipe.

[0008] In some embodiments, the kettle body includes an inner cylinder and an outer cylinder, a heating chamber is formed between the inner cylinder and the outer cylinder, a medium inlet and a medium outlet are respectively provided on both sides of the outer cylinder, and the interior of the inner cylinder forms the reaction chamber.

[0009] In some embodiments, the length of the sealing tube is greater than that of the filter tube; the diameters of the discharge tube and the inner wall of the filter tube are equal, the outer wall of the sealing tube slides in contact with the inner wall of the filter tube, and a valve is provided at the end of the discharge tube away from the filter tube.

[0010] In some embodiments, the filter tube is an annular mesh tube, and a tube cover is provided at one end thereof away from the discharge tube.

[0011] In some embodiments, the driving member includes a cylinder, a housing, and a connecting rod. The housing is sleeved on the outside of the discharge pipe, and the cylinder is installed within the housing. One end of the connecting rod is connected to the telescopic shaft of the cylinder, and the other end of the connecting rod is connected to the sealing tube to drive the sealing tube to slide within the discharge pipe. Two cylinders are provided, and a sliding groove is provided on the outside of the discharge pipe at a position corresponding to the connecting rod, extending along the sliding direction of the sealing tube.

[0012] In some embodiments, the synthesis equipment of the silicone polyurethane copolymer also includes a stirring structure, which includes a motor, a rotating shaft and a stirring blade. The rotating shaft is vertically installed inside the inner cylinder, and a plurality of stirring blades are arranged in sequence on the outside of the rotating shaft along the height direction. The driving end of the motor is connected to the rotating shaft to drive the rotating shaft to rotate and drive the stirring blade to rotate.

[0013] In some embodiments, the filter tube is centrally located at the bottom of the inner wall of the inner tube, and the stirring structure further includes a filter scraper, which is attached to one side of the filter tube and has a top end connected to the rotating shaft. A bottom scraper is provided at the bottom end of the filter scraper, and the bottom of the bottom scraper is engaged with the bottom wall of the inner tube.

[0014] Compared with the prior art, the synthesis equipment for silicone polyurethane copolymers provided by the utility model is provided with a kettle body, a discharging structure and a sealing structure. The discharging structure is used to discharge the material in the kettle body. The filter tube is arranged inside the reaction chamber of the kettle body, and a plurality of filter holes for filtering the material are formed on its outer peripheral surface. When the material is discharged, it will first be filtered through the filter holes of the filter tube to remove impurities in the reaction product and improve the purity of the product. At the same time, since the filter tube is arranged inside the reaction chamber of the kettle body, the filtered solid particles will remain in the reaction chamber of the reactor, and the solid particles can continue to react in subsequent synthesis work to avoid wasting materials and ensure that no unreacted solid matter affects the quality and performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main cross-sectional structure of the synthesis equipment of the organosilicon polyurethane copolymer provided by an embodiment of the present utility model;

[0016] Figure 2 This is a structural schematic diagram of the sealing tube of the synthesis equipment of the organosilicon polyurethane copolymer provided by an embodiment of the present utility model when it is in the first working position;

[0017] Figure 3 This is a structural schematic diagram of the sealing pipe of the synthesis equipment of the organosilicon polyurethane copolymer provided by an embodiment of the present utility model when it is in the second working position;

[0018] Figure 4 It is a structural schematic diagram of a filtering scraper and a bottom wall scraper in the synthesis equipment of the organosilicon polyurethane copolymer provided by an embodiment of the present utility model.

[0019] Description of reference numerals:

[0020] 1. Kettle body; 11. Inner cylinder; 12. Outer cylinder; 13. Heating chamber; 14. Medium inlet; 15. Medium outlet;

[0021] 2. Discharge structure; 21. Discharge pipe; 22. Filter pipe; 23. Valve; 24. Pipe cover;

[0022] 3. Sealing structure; 31. Driving member; 311. Cylinder; 312. Cover; 313. Connecting rod; 32. Sealing tube;

[0023] 4. Stirring structure; 41. Motor; 42. Rotating shaft; 43. Stirring blade; 44. Filter scraper; 45. Bottom wall scraper. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] In order to solve the technical problem that solid particles will remain during the production of synthesis equipment, and the solid particles will be discharged together with the materials, affecting the quality of the product, the utility model provides a synthesis equipment for silicone polyurethane copolymers. By arranging a filter tube in the kettle body to filter the materials, impurities in the reaction products are removed, the purity of the product is improved, and it is ensured that there are no unreacted solids that affect the quality and performance of the product. The filtered solid particles can continue to react in subsequent synthesis work.

[0026] See also Figures 1 to 3 The synthesis equipment of silicone polyurethane copolymer includes: a kettle body 1, a discharge structure 2 and a sealing structure 3, wherein a reaction chamber is formed inside the kettle body 1; the discharge structure 2 includes a discharge pipe 21 and a filter tube 22, the filter tube 22 is arranged inside the reaction chamber of the kettle body 1, and a plurality of filter holes for filtering materials are formed on the outer peripheral surface thereof, and the discharge pipe 21 is connected to one end of the filter tube 22 for discharging the material by docking; the sealing structure 3 includes a driving member 31 and a sealing tube 32 slidably arranged between the discharge pipe 21 and the filter tube 22, the driving member 31 is used to drive the sealing tube 32 to slide into the filter tube 22 to seal the filter holes in the first station and to move away from the filter tube 22 to the second station.

[0027] In this solution, the synthesis reaction of the raw materials is carried out through the reaction chamber formed inside the kettle body 1, and a discharge structure 2 is provided for discharging the materials. The discharge structure 2 includes a discharge pipe 21 and a filter tube 22. The filter tube 22 is provided inside the reaction chamber of the kettle body 1, and a plurality of filter holes for filtering the materials are formed on its outer peripheral surface. When the materials are discharged, they will first be filtered through the filter holes of the filter tube 22 to remove impurities in the reaction products and improve the purity of the products. At the same time, since the filter tube 22 is provided inside the reaction chamber of the kettle body 1, the filtered solid particles will remain in the reaction chamber of the reactor, and the solid particles can continue to react in subsequent synthesis work to avoid wasting materials.

[0028] In order to promote the reaction of materials, in this example, please refer to Figure 1 The kettle body 1 includes an inner tube 11 and an outer tube 12. The interior of the inner tube 11 forms the reaction chamber, and a heating chamber 13 is formed between the inner tube 11 and the outer tube 12. A medium inlet 14 and a medium outlet 15 are respectively provided on both sides of the outer tube 12. The medium inlet 14 and the medium outlet 15 are connected to the reaction chamber.

[0029] During implementation, a heating medium can be introduced into the heating chamber 13 through the medium inlet 14. The heating medium in the heating chamber 13 can heat the material, and the heated medium after heat exchange is discharged through the medium outlet 15, achieving cyclic heating. By heating the material, the solubility of the reactants or solvent can be increased, making it easier to mix evenly the originally difficult-to-dissolve substances, thereby promoting the reaction.

[0030] In this example, see Figures 1 to 3 The filter tube 22 is an annular mesh tube. A cap 24 is provided at one end of the filter tube 22, facing away from the discharge tube 21. The cap 24 seals one end of the filter tube 22. The filter tube 22 is located within the reaction chamber, and its outer surface forms a filtering surface. After being filtered by the filtering surface, the material passes through the interior of the filter tube 22 and is discharged from the other end of the filter tube 22. The sealing tube 32 is longer than the filter tube 22, fully sealing the filter tube 22. The inner walls of the discharge tube 21 and filter tube 22 have equal diameters. The outer wall of the sealing tube 32 slidably fits against the inner wall of the filter tube 22. A valve 23 is provided at the end of the discharge tube 21 facing away from the filter tube 22, achieving a double seal at the discharge port. By sliding the sealing tube 32 into the interior of the filter tube 22, the filter holes are sealed, preventing material from flowing into the discharge tube 21 and ensuring that the material can fully react within the reaction chamber.

[0031] In one embodiment, see Figure 2 and Figure 3 The driving member 31 includes a cylinder 311, a cover 312 and a connecting rod 313. The cover 312 is fixedly mounted on the outside of the discharge pipe 21, and the cylinder 311 is installed in the cover 312. One end of the connecting rod 313 is connected to the telescopic shaft of the cylinder 311, and the other end of the connecting rod 313 is connected to the sealing tube 32 to drive the sealing tube 32 to slide inside the discharge pipe 21. The outer side of the discharge pipe 21 and the corresponding position of the connecting rod 313 are provided with a sliding groove along the sliding direction of the sealing tube 32 for the connecting rod 313 to slide on the sliding groove, thereby driving the sealing tube 32 to switch between the first station and the second station.

[0032] Preferably, in this embodiment, two cylinders 311 are provided.

[0033] During implementation, the extension of the cylinder 311 can drive the sealing tube 32 to move upward, so that the sealing tube 32 is in the first position, and the filter tube 22 is sealed. At this time, the synthesis reaction can be carried out normally. The contraction of the cylinder 311 can drive the sealing tube 32 to move downward, and drive the sealing tube 32 to the second position. At this time, the material discharge will be filtered through the filter holes of the filter tube 22 to remove impurities in the reaction product. Finally, the material without impurities is discharged through the discharge pipe 21.

[0034] It should be noted that, in other possible embodiments, the specific form of the driving member 31 is not limited, and the cylinder 311 can also be replaced by an electric telescopic rod, a hydraulic cylinder or a ball screw structure.

[0035] In order to promote the reaction of materials, in this example, please refer to Figure 1 The synthesis equipment of the silicone polyurethane copolymer also includes a stirring structure 4, which is composed of a motor 41, a rotating shaft 42 and a stirring blade 43. The rotating shaft 42 is vertically installed inside the inner cylinder 11, and its top end is rotatably connected to the inner cylinder 11 through a bearing, and its bottom end is rotatably connected to the pipe cover 24. The outer side of the rotating shaft 42 is sequentially provided with a plurality of stirring blades 43 along the height direction for stirring the raw materials. The driving end of the motor 41 is connected to the rotating shaft 42 to drive the rotating shaft 42 to rotate and drive the stirring blade 43 to rotate, thereby stirring the raw materials and mixing the raw materials evenly for a uniform reaction.

[0036] Further, in some embodiments, see Figures 1 to 4 The filter tube 22 is centrally located at the bottom of the inner wall of the inner drum 11. The stirring structure 4 further includes a filter scraper 44 and a bottom wall scraper 45. Specifically, two sets of the filter scraper 44 and bottom wall scraper 45 are provided, one on each side of the filter tube 22. The filter scraper 44 is fitted on one side of the filter tube 22. The top of the filter scraper 44 is fixedly connected to the rotating shaft 42. The bottom wall scraper 45 is fixedly located on one side of the bottom end of the filter scraper 44. The bottom of the bottom wall scraper 45 fits into the bottom wall of the inner drum 11. When the motor 41 drives the rotating shaft 42 to rotate, it also drives the filter scraper 44 and the bottom wall scraper 45 to rotate synchronously, causing the filter scraper 44 to scrape the outside of the filter tube 22 to prevent clogging of the filter screen during discharge. At the same time, the bottom wall scraper 45 scrapes the bottom wall of the inner drum 11 to prevent scale from forming on the bottom of the inner drum 11.

[0037] Working principle: When in operation, the sealed tube 32 is in the first position, the raw material enters the interior of the inner cylinder 11 through the feed pipe, and the heating medium is fed into the heating chamber 13 through the medium inlet 14. The heating medium in the heating chamber 13 can heat the material, and the heated medium after heat exchange is discharged through the medium outlet 15 to achieve circulating heating. At the same time, the motor 41 drives the rotating shaft 42 and the stirring blade 43 to rotate to stir the material. By heating and stirring the material, the solubility of the reactant or solvent is increased. When discharging is required, the cylinder 311 is adjusted to contract and drive the sealed tube 32 to move downward, thereby driving the sealed tube 32 to the second position. At this time, the material will be filtered through the filter holes of the filter tube 22 to remove impurities in the reaction product. Finally, the material with impurities removed is discharged through the discharge pipe 21.

[0038] This device is provided with a kettle body 1, a discharge structure 2 and a sealing structure 3. The discharge structure 2 is used to discharge the material in the kettle body 1. The filter tube 22 is arranged inside the reaction chamber of the kettle body 1. The outer peripheral surface of the filter tube 22 is formed with a plurality of filter holes for filtering the material. When the material is discharged, it will first be filtered through the filter holes of the filter tube 22 to remove impurities in the reaction product and improve the purity of the product. At the same time, since the filter tube 22 is arranged inside the reaction chamber of the kettle body 1, the filtered solid particles will remain in the reaction chamber of the reactor. The solid particles can continue to react in subsequent synthesis work to avoid wasting materials and ensure that there are no unreacted solids that affect the quality and performance of the product.

[0039] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A synthesis device for silicone polyurethane copolymer, characterized in that: include: A kettle body, wherein a reaction chamber is formed inside the kettle body; A discharge structure, comprising a discharge pipe and a filter pipe, wherein the filter pipe is disposed inside the reaction chamber of the kettle body and has a plurality of filter holes formed on its outer peripheral surface for filtering materials, and the discharge pipe is connected to one end of the filter pipe for discharging the material; and The sealing structure includes a driving member and a sealing tube slidably arranged between the discharge tube and the filter tube, wherein the driving member is used to drive the sealing tube to slide into the filter tube to seal the filter hole at a first position and move away from the filter tube to a second position.

2. The synthesis equipment of the organosilicon polyurethane copolymer according to claim 1, characterized in that: The kettle body includes an inner cylinder and an outer cylinder, a heating chamber is formed between the inner cylinder and the outer cylinder, a medium inlet and a medium outlet are respectively provided on both sides of the outer cylinder, and the interior of the inner cylinder forms the reaction chamber.

3. The synthesis equipment of the organosilicon polyurethane copolymer according to claim 1, characterized in that: The length of the sealing tube is greater than that of the filtering tube.

4. The synthesis equipment of the organosilicon polyurethane copolymer according to claim 1, characterized in that: The diameters of the discharge pipe and the inner wall of the filter pipe are equal, the outer wall of the sealing pipe is slidably fitted with the inner wall of the filter pipe, and a valve is provided at one end of the discharge pipe away from the filter pipe.

5. The synthesis equipment of the organosilicon polyurethane copolymer according to claim 1, characterized in that: The filter tube is an annular mesh tube, and a tube cover is provided at one end thereof away from the discharge tube.

6. The synthesis equipment of the organosilicon polyurethane copolymer according to claim 1, characterized in that: The driving member includes a cylinder, a cover and a connecting rod. The cover is mounted on the outside of the discharge pipe, and the cylinder is installed in the cover. One end of the connecting rod is connected to the telescopic shaft of the cylinder, and the other end of the connecting rod is connected to the sealing tube to drive the sealing tube to slide inside the discharge pipe.

7. The synthesis equipment of the organosilicon polyurethane copolymer according to claim 6, characterized in that: Two cylinders are provided, and the outer sides of the discharge pipes and the positions corresponding to the connecting rods are both provided with sliding grooves along the sliding direction of the sealing pipe.

8. The synthesis equipment of the organosilicon polyurethane copolymer according to claim 2, characterized in that: The synthesis equipment of the silicone polyurethane copolymer also includes a stirring structure, which includes a motor, a rotating shaft and a stirring blade. The rotating shaft is vertically installed inside the inner cylinder, and a plurality of stirring blades are arranged in sequence on the outside of the rotating shaft along the height direction. The driving end of the motor is connected to the rotating shaft to drive the rotating shaft to rotate and drive the stirring blades to rotate.

9. The synthesis equipment of the organosilicon polyurethane copolymer according to claim 8, characterized in that: The filter tube is centrally arranged at the bottom of the inner wall of the inner cylinder. The stirring structure also includes a filter scraper. The filter scraper is fitted on one side of the filter tube, and the top end of the filter scraper is connected to the rotating shaft.

10. The synthesis equipment of the organosilicon polyurethane copolymer according to claim 9, characterized in that: A bottom wall scraper is provided at the bottom end of the filter scraper, and the bottom of the bottom wall scraper is fitted with the bottom wall of the inner cylinder.

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