Natural rubber epoxidation preparation equipment

Abstract

The utility model discloses natural rubber epoxidation preparation equipment and relates to the technical field of natural rubber processing. The upper side and the lower side of the inner wall of the protective barrel are fixedly connected with a reaction barrel together, a heater is arranged between the protective barrel and the reaction barrel, a barrel cover is clamped at an opening of the reaction barrel, a cavity is formed in the barrel cover, and the middle of the top surface of the barrel cover is fixedly connected with a motor; the output end of the motor penetrates through the top face of the cylinder cover and extends to the inner wall of the cavity, the output end of the motor is fixedly connected with a first rotating rod, and the lower end of the first rotating rod penetrates through the lower side of the inner wall of the cavity and extends to the bottom face of the cylinder cover. When natural rubber is melted, the natural rubber can be fully stirred, low melting efficiency caused by non-uniform melting of the natural rubber is prevented, meanwhile, in the epoxidation reaction process of the natural rubber, full stirring and mixing between a natural rubber solution and an oxidizing agent can be guaranteed, and the natural rubber solution can be fully stirred and mixed. The occurrence of more unreacted raw materials after the reaction is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of natural rubber processing, in particular to natural rubber epoxidation preparation equipment. Background Art

[0002] The preparation of natural rubber epoxidation is to mix the melted natural rubber solution with an oxidant, and carry out epoxidation reaction at a certain temperature and pressure. After the epoxidation reaction is completed, the product is separated and purified, and the excess solvent and unreacted raw materials are removed to finally obtain epoxidized natural rubber. The polar epoxy groups in the epoxidized natural rubber strengthen the interaction between molecules, and the epoxidized natural rubber has a similar structure to natural rubber. After introduction, the entanglement of the natural rubber itself is destroyed, and the gel produced in the molecule is weakened, so that the fluidity of the natural rubber becomes better and the processing performance is improved.

[0003] When melting natural rubber, it is necessary to fully stir the natural rubber to prevent low melting efficiency due to uneven melting. At the same time, during the epoxidation reaction of natural rubber, it is necessary to ensure sufficient stirring and mixing between the natural rubber solution and the oxidant to avoid a large amount of unreacted raw materials after the reaction. To this end, we proposed a natural rubber epoxidation preparation equipment. Utility Model Content

[0004] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0005] A natural rubber epoxidation preparation device comprises a protective cylinder, wherein the upper and lower sides of the inner wall of the protective cylinder are fixedly connected to a reaction cylinder, a heater is arranged between the protective cylinder and the reaction cylinder, a cylinder cover is clamped at the opening of the protective cylinder, a cavity is opened inside the cylinder cover, a motor is fixedly connected to the middle of the top surface of the cylinder cover, the output end of the motor passes through the top surface of the cylinder cover and extends to the inner wall of the cavity, a first rotating rod is fixedly connected to the output end of the motor, the lower end of the first rotating rod passes through the lower side of the inner wall of the cavity and extends to the bottom surface of the cylinder cover, a rod wall of the first rotating rod is located on the inner wall of the cavity and is fixedly connected to a first gear, a second gear is meshedly connected to the surface of the first gear around the periphery, and a plurality of The inner wall of the second gear is fixedly connected with a second rotating rod, and the upper ends of the plurality of second rotating rods are rotatably connected to the upper side of the inner wall of the cavity, and the lower ends of the plurality of second rotating rods pass through the lower side of the inner wall of the cavity and extend to the bottom surface of the cylinder cover. The rod wall of the first rotating rod is fixedly connected with a plurality of first stirring rods, and the rod walls of the plurality of second rotating rods are fixedly connected with a plurality of second stirring rods. When the natural rubber is melted, the natural rubber can be fully stirred to prevent the low melting efficiency of the natural rubber due to uneven melting. At the same time, during the epoxidation reaction of the natural rubber, sufficient stirring and mixing of the natural rubber solution and the oxidant can be guaranteed to avoid a large amount of unreacted raw materials after the reaction.

[0006] Furthermore, an air pipe is fixedly connected to the rear side of the top surface of the cylinder cover.

[0007] Furthermore, connecting columns are fixedly connected to the left and right sides of the top surface of the cylinder cover, a rotating plate is fixedly connected to the top surfaces of the two connecting columns, a lifting plate is rotatably connected to the right side of the bottom surface of the rotating plate, and an electric telescopic rod is fixedly connected to the bottom surface of the lifting plate.

[0008] Furthermore, a U-shaped fixing frame is provided on the surface of the electric telescopic rod, and both ends of the fixing frame penetrate the top surface of the lifting plate and extend to the bottom surface thereof.

[0009] Furthermore, a bottom plate is provided on the bottom surface of the protective tube, and the lower end of the electric telescopic rod and both ends of the fixing frame are fixedly connected to the right side of the top surface of the bottom plate.

[0010] Furthermore, positioning blocks are fixedly connected to the lower sides of the front and rear surfaces of the protective tube, positioning groove blocks are snap-fitted to the surfaces of the two positioning blocks, and the bottom surfaces of the two positioning groove blocks are fixedly connected to the left side of the top surface of the bottom plate.

[0011] Furthermore, mounting holes are provided at the four corners of the top surface of the bottom plate.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. When using the epoxidation preparation equipment, after the crushed natural rubber raw material is placed in the reaction cylinder, the heater is started to heat the surface of the reaction cylinder to melt the natural rubber raw material. At the same time, the motor is started, the motor rotates the first rotating rod and the first stirring rod, and the second rotating rod and the second stirring rod are rotated through the transmission between the gears. Under the joint action of the first stirring rod and the second stirring rod, the stirring effect of the natural rubber raw material is enhanced, so that the natural rubber raw material melts more evenly, which is conducive to the rapid melting of the natural rubber raw material. After the natural rubber raw material is melted into a natural rubber solution, the oxidant is poured into the reaction cylinder, and then the motor is started again to rotate the first stirring rod and the second stirring rod to fully stir the natural rubber solution and the oxidant, thereby avoiding a large amount of unreacted raw materials after the reaction.

[0014] 2. The air pipe can deflate the reaction cylinder to avoid excessive air pressure when melting the natural rubber raw materials, which will cause an explosion reaction and help improve the safety of the equipment. The cylinder cover can be raised and lowered by the electric telescopic rod, thereby improving the convenience of the equipment. The fixed frame has a limiting effect, making the cylinder cover more stable during the lifting process.

[0015] 3. All devices on the equipment are indirectly or directly connected to the base plate, thereby improving the overall stability of the equipment. The positioning block and positioning slot block position the protective tube to facilitate the installation of the protective tube. The mounting hole allows the entire equipment to be installed on the operating platform, thereby increasing the stability of the equipment and improving the performance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front cross-sectional structural schematic diagram of the utility model;

[0017] Figure 2 It is a front structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the cylinder cover of the utility model;

[0021] Figure numerals: 1. protective cylinder; 2. reaction cylinder; 3. heater; 4. cylinder cover; 5. cavity; 6. motor; 7. first rotating rod; 8. first gear; 9. second gear; 10. second rotating rod; 11. first stirring rod; 12. second stirring rod; 13. air pipe; 14. connecting column; 15. rotating plate; 16. lifting plate; 17. electric telescopic rod; 18. fixing frame; 19. bottom plate; 20. positioning block; 21. positioning slot block; 22. mounting hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0023] The "front, back, left, right" viewing angles of this device are Figure 1 The directions in the attached drawings are taken as reference.

[0024] like Figure 1-5As shown, a natural rubber epoxidation preparation device comprises a protective cylinder 1, a reaction cylinder 2 is fixedly connected to the upper and lower sides of the inner wall of the protective cylinder 1, a heater 3 is arranged between the protective cylinder 1 and the reaction cylinder 2, a cylinder cover 4 is clamped at the opening of the protective cylinder 1, a cavity 5 is opened inside the cylinder cover 4, a motor 6 is fixedly connected to the middle of the top surface of the cylinder cover 4, the output end of the motor 6 passes through the top surface of the cylinder cover 4 and extends to the inner wall of the cavity 5, a first rotating rod 7 is fixedly connected to the output end of the motor 6, and the lower end of the first rotating rod 7 passes through the lower side of the inner wall of the cavity 5 and extends to the bottom surface of the cylinder cover 4. The rod wall of the first rotating rod 7 is located on the inner wall of the cavity 5 and is fixedly connected to the first gear 8. The surface of the first gear 8 is meshed with the second gear 9 all around. The inner walls of multiple second gears 9 are fixedly connected to second rotating rods 10. The upper ends of multiple second rotating rods 10 are rotatably connected to the upper side of the inner wall of the cavity 5. The lower ends of multiple second rotating rods 10 pass through the lower side of the inner wall of the cavity 5 and extend to the bottom surface of the cylinder cover 4. The rod wall of the first rotating rod 7 is fixedly connected to multiple first stirring rods 11. The rod walls of multiple second rotating rods 10 are fixedly connected to multiple second stirring rods 12. A stirring rod 11 is arranged on the first rotating rod 7 at intervals, and a second stirring rod 12 is arranged on the second rotating rod 10 at intervals. When the first rotating rod 7 and the second rotating rod 10 rotate, the first stirring rod 11 and the second stirring rod 12 are staggered and will not collide. When using the epoxidation preparation equipment, after the crushed natural rubber raw material is placed in the reaction tube 2, the heater 3 is started to heat the surface of the reaction tube 2 to melt the natural rubber raw material. At the same time, the motor 6 is started, and the motor 6 rotates the first rotating rod 7 and the first stirring rod 11, and the second rotating rod 10 and the second stirring rod 12 are rotated through the transmission between the gears. Under the joint action of the first stirring rod 11 and the second stirring rod 12, the stirring effect of the natural rubber raw material is enhanced, so that the natural rubber raw material melts more evenly, which is conducive to the rapid melting of the natural rubber raw material. After the natural rubber raw material is melted into a natural rubber solution, an oxidant is poured into the reaction tube 2, and then the motor 6 is started again to rotate the first stirring rod 11 and the second stirring rod 12 to fully stir the natural rubber solution and the oxidant, thereby avoiding a large amount of unreacted raw materials after the reaction.

[0025] like Figure 1-5As shown, in some embodiments, the rear side of the top surface of the cylinder cover 4 is fixedly connected with an air pipe 13, the left and right sides of the top surface of the cylinder cover 4 are fixedly connected with connecting columns 14, the top surfaces of the two connecting columns 14 are commonly fixedly connected with a rotating plate 15, and the right side of the bottom surface of the rotating plate 15 is rotatably connected with a lifting plate 16, and the rotating plate 15 can be rotated on the lifting plate 16, so that the cylinder cover 4 can be rotated. After the cylinder cover 4 rises, the cylinder cover 4 can be manually rotated to a position away from the reaction cylinder 2, so as to facilitate the addition, cleaning, and transportation of the reaction cylinder 2. The bottom surface of the lifting plate 16 is fixedly connected It is connected to an electric telescopic rod 17, and a U-shaped fixing frame 18 is arranged on the surface of the electric telescopic rod 17. Both ends of the fixing frame 18 penetrate the top surface of the lifting plate 16 and extend to its bottom surface. The air pipe 13 can deflate the reaction cylinder 2 to avoid excessive air pressure when the natural rubber raw material is melted, thereby preventing an explosion reaction, which helps to improve the safety of the equipment. The cylinder cover 4 can be raised and lowered by the electric telescopic rod 17, thereby improving the convenience of the equipment. The fixing frame 18 has a limiting effect, making the cylinder cover 4 more stable during the lifting process.

[0026] like Figure 1-5 As shown, in some embodiments, a bottom plate 19 is provided on the bottom surface of the protective tube 1, the lower end of the electric telescopic rod 17 and the two ends of the fixing frame 18 are fixedly connected to the right side of the top surface of the bottom plate 19, and the lower sides of the front and rear surfaces of the protective tube 1 are fixedly connected with positioning blocks 20, and the surfaces of the two positioning blocks 20 are clamped with positioning groove blocks 21, and the bottom surfaces of the two positioning groove blocks 21 are fixedly connected to the left side of the top surface of the bottom plate 19, and mounting holes 22 are provided at the four corners of the top surface of the bottom plate 19. Each device on the equipment is indirectly or directly connected to the bottom plate 19, thereby improving the overall stability of the equipment. The positioning block 20 and the positioning groove block 21 position the protective tube 1 to facilitate the installation of the protective tube 1, and avoid shaking or displacement during the use of the protective tube 1 to ensure the normal use of the equipment. The mounting hole 22 allows the entire equipment to be installed on the operating platform, thereby increasing the stability of the equipment and improving the performance of the equipment.

[0027] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A natural rubber epoxidation preparation device, comprising a protective tube (1), characterized in that: The upper and lower sides of the inner wall of the protective tube (1) are fixedly connected to a reaction tube (2); a heater (3) is arranged between the protective tube (1) and the reaction tube (2); a tube cover (4) is clamped at the opening of the protective tube (1); a cavity (5) is provided inside the tube cover (4); a motor (6) is fixedly connected to the middle of the top surface of the tube cover (4); the output end of the motor (6) passes through the top surface of the tube cover (4) and extends to the inner wall of the cavity (5); the output end of the motor (6) is fixedly connected to a first rotating rod (7); the lower end of the first rotating rod (7) passes through the lower side of the inner wall of the cavity (5) and extends to the bottom surface of the tube cover (4); the first rotating rod ( The rod wall of the first rotating rod (7) is located on the inner wall of the cavity (5) and is fixedly connected to a first gear (8); the first gear (8) is meshed with second gears (9) at four sides of the surface; the inner walls of a plurality of the second gears (9) are fixedly connected to second rotating rods (10); the upper ends of a plurality of the second rotating rods (10) are rotatably connected to the upper side of the inner wall of the cavity (5); the lower ends of a plurality of the second rotating rods (10) pass through the lower side of the inner wall of the cavity (5) and extend to the bottom surface of the cylinder cover (4); the rod wall of the first rotating rod (7) is fixedly connected to a plurality of first stirring rods (11); and the rod walls of a plurality of the second rotating rods (10) are fixedly connected to a plurality of second stirring rods (12).

2. A natural rubber epoxidation preparation equipment according to claim 1, characterized in that: The rear side of the top surface of the cylinder cover (4) is fixedly connected with an air pipe (13).

3. A natural rubber epoxidation preparation equipment according to claim 1, characterized in that: The left and right sides of the top surface of the cylinder cover (4) are fixedly connected to connecting columns (14), the top surfaces of the two connecting columns (14) are commonly fixedly connected to a rotating plate (15), the right side of the bottom surface of the rotating plate (15) is rotatably connected to a lifting plate (16), and the bottom surface of the lifting plate (16) is fixedly connected to an electric telescopic rod (17).

4. A natural rubber epoxidation preparation equipment according to claim 3, characterized in that: A U-shaped fixing frame (18) is provided on the surface of the electric telescopic rod (17), and both ends of the fixing frame (18) penetrate the top surface of the lifting plate (16) and extend to the bottom surface thereof.

5. A natural rubber epoxidation preparation equipment according to claim 4, characterized in that: The bottom surface of the protective tube (1) is provided with a bottom plate (19), and the lower end of the electric telescopic rod (17) and the two ends of the fixing frame (18) are fixedly connected to the right side of the top surface of the bottom plate (19).

6. A natural rubber epoxidation preparation equipment according to claim 5, characterized in that: The lower sides of the front and rear surfaces of the protective tube (1) are fixedly connected with positioning blocks (20), the surfaces of the two positioning blocks (20) are clamped with positioning groove blocks (21), and the bottom surfaces of the two positioning groove blocks (21) are fixedly connected to the left side of the top surface of the bottom plate (19).

7. The natural rubber epoxidation preparation equipment according to claim 5, characterized in that: The four corners of the top surface of the bottom plate (19) are provided with mounting holes (22).

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