Unipol vapor phase method polypropylene production device
By introducing a motor-driven guide tube and guide plate structure into the Unipol gas-phase polypropylene production unit, the problem of uneven contact between polypropylene particles and the heat source on the inner wall was solved, achieving more efficient mixing and discharge.
Patent Information
- Application Number
- CN202520195695.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-07
AI Technical Summary
In existing Unipol gas-phase polypropylene production equipment, polypropylene particles in the center of the production cylinder cannot effectively contact the inner wall edge, resulting in low mixing efficiency.
By setting up an adjustment structure, including a motor-driven guide tube and guide plate, polypropylene granules are propelled towards the heat source area on the inner wall, and larger particles are intercepted by the filter plate, ensuring uniform mixing and discharge.
This improved the mixing efficiency of polypropylene particles and catalyst, ensuring rapid melting of polypropylene particles and no large particle residue during the discharge process.
Smart Images
Figure CN223818679U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polypropylene production technology, specifically to a Unipol gas-phase polypropylene production apparatus. Background Technology
[0002] Gas-phase polypropylene production is a common polypropylene production technology, belonging to the gas-phase polymerization process. This process is widely used in the industrial production of polypropylene, offering advantages such as high efficiency, energy saving, and low cost. Its core advantage lies in polymerizing propylene monomers in the gas phase through the action of a catalyst to produce high-performance polypropylene resin.
[0003] During the heating and fusion of polypropylene particles and catalyst, the heating area of the production cylinder is generally located at the edge of the inner wall. As a result, the polypropylene particles in the center of the production cylinder cannot make better contact with the edge of the inner wall, which leads to the polypropylene particles not being able to mix with the catalyst quickly. Utility Model Content
[0004] The purpose of this invention is to provide a Unipol gas-phase polypropylene production apparatus to solve the problem that the heating area of the existing production cylinder is generally located at the edge of the inner wall, and the polypropylene particles in the center of the production cylinder cannot make better contact with the edge of the inner wall, resulting in the polypropylene particles not being able to mix with the catalyst quickly.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a Unipol gas-phase polypropylene production apparatus, comprising a production cylinder, a top cover fixedly mounted on the upper end of the production cylinder, a heating chamber opened inside the production cylinder, an inlet pipe fixedly mounted on one side of the heating chamber, a drain pipe fixedly mounted on one side of the lower end of the heating chamber, an adjustment structure fixedly mounted on the upper end of the top cover, the adjustment structure including a motor fixedly mounted on the upper end of the top cover, a guide tube fixedly mounted on the outer wall of the output shaft of the motor, a guide plate fixedly mounted on the lower end of the guide tube, the front and rear ends of the guide plate being planar, a fixing member fixedly mounted on the inner wall of the production cylinder, and a filter plate fixedly mounted on the upper end of the fixing member.
[0006] Preferably, an installation plate is fixedly provided at the upper end of the guide tube, a fixing plate is fixedly provided on the outer wall of the motor output shaft, a first screw is fixedly provided at the upper end of the installation plate, the output end of the first screw passes through the fixing plate and a hexagonal nut is fixedly provided on its outer wall.
[0007] Preferably, the lower end of the guide plate is attached to the upper end of the filter plate.
[0008] Preferably, the upper end of the fixing member is fixedly provided with a second screw on both sides, and the filter plate has two mounting holes. The output end of the second screw passes through the mounting hole and the outer wall is threaded with a nut.
[0009] Preferably, the nut is a hexagonal nut with a closed upper end, and the nut is made of steel.
[0010] Preferably, a discharge pipe is fixedly provided at the lower end of the production cylinder, and a control valve is fixedly provided on the outer wall of the discharge pipe.
[0011] Preferably, the upper end of the production cylinder is fixedly provided with a plurality of bolts in a ring, the output end of the bolts passing through the upper cover and having a nut threaded on the outer wall.
[0012] Preferably, a support is fixedly provided at the lower end of the outer wall of the production cylinder.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1) By setting and adjusting the structure, the polypropylene granulator motor output shaft can be moved outwards by rotating the guide plate, so that the polypropylene granules can better contact the heat source area of the inner wall and accelerate the melting of the polypropylene granules.
[0015] 2) By setting a second screw, mounting hole and nut, polypropylene particles can be prevented from falling directly to the vicinity of the discharge pipe, and the polypropylene in particle form can be intercepted to ensure that the material does not contain large polypropylene particles during discharge. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of a Unipol gas-phase polypropylene production apparatus according to an embodiment of this utility model;
[0017] Figure 2 This is a schematic cross-sectional view of the production cylinder in an embodiment of this utility model;
[0018] Figure 3 This is a schematic diagram of the main cross-section structure in an embodiment of this utility model;
[0019] Figure 4 This is a schematic diagram of the separation structure between the fixing plate and the guide tube in an embodiment of this utility model;
[0020] Figure 5 This is a schematic diagram of the disassembled structure of the filter plate and the fixing component in an embodiment of this utility model.
[0021] In the diagram: 1. Production cylinder; 2. Top cover; 3. Heating chamber; 4. Liquid inlet pipe; 5. Liquid outlet pipe; 6. Adjustment structure; 7. Motor; 8. Flow guide cylinder; 9. Guide plate; 10. Fixing plate; 11. Mounting plate; 12. First screw; 13. Fixing component; 14. Filter plate; 15. Second screw; 16. Mounting hole; 17. Nut. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1
[0024] Combination Figures 1-5 A Unipol gas-phase polypropylene production apparatus includes a production cylinder 1, a top cover 2 fixedly mounted on the upper end of the production cylinder 1, a heating chamber 3 opened inside the production cylinder 1, an inlet pipe 4 fixedly mounted on one side of the heating chamber 3, an outlet pipe 5 fixedly mounted on one side of the lower end of the heating chamber 3, an adjustment structure 6 fixedly mounted on the upper end of the top cover 2, the adjustment structure 6 including a motor 7 fixedly mounted on the upper end of the top cover 2, a guide tube 8 fixedly mounted on the outer wall of the output shaft of the motor 7, a guide plate 9 fixedly mounted on the lower end of the guide tube 8, the front and rear ends of the guide plate 9 being planar, a fixing member 13 fixedly mounted on the inner wall of the production cylinder 1, and a filter plate 14 fixedly mounted on the upper end of the fixing member 13.
[0025] See Figure 2 , Figure 3 and Figure 5 Furthermore, the lower end of the guide plate 9 is attached to the upper end of the filter plate 14. The upper ends of the fastener 13 are fixedly provided with second screws 15 on both sides. The filter plate 14 has two mounting holes 16 inside. The output end of the second screw 15 passes through the mounting hole 16 and is provided with a nut 17 on its outer wall. The nut 17 is a hexagonal nut and the upper end is closed. The nut 17 is made of steel. The lower end of the production cylinder 1 is fixedly provided with a discharge pipe. The outer wall of the discharge pipe is fixedly provided with a control valve. The upper end of the production cylinder 1 is fixedly provided with multiple bolts in a ring. The output end of the bolts passes through the upper cover 2 and is provided with a nut on its outer wall. The lower end of the outer wall of the production cylinder 1 is fixedly provided with a bracket.
[0026] Specifically, the second screw 15 passes through the mounting hole 16 and engages with the nut 17 to fix the filter plate 14 on the upper end of the fixing member 13, and the discharge pipe is used to discharge the polypropylene that has been mixed with the catalyst.
[0027] Example 2
[0028] See Figure 4 Furthermore, based on Embodiment 1, the upper end of the guide tube 8 is fixedly provided with an installation plate 11, the outer wall of the output shaft of the motor 7 is fixedly provided with a fixing plate 10, the upper end of the installation plate 11 is fixedly provided with a first screw 12, the output end of the first screw 12 passes through the fixing plate 10 and the outer wall is fixedly provided with a hexagonal nut.
[0029] Specifically, the mounting plate 11 is used to dock with the fixing plate 10 on the outer wall of the output end of the motor 7, and the first screw 12 passes through the fixing plate 10 and cooperates with the hexagonal nut to realize the fixed connection between the guide tube 8 and the output shaft of the motor 7.
[0030] In actual operation, when it is necessary to heat and mix polypropylene and catalyst, start the heating equipment connected to one side of the liquid inlet pipe 4 to raise the temperature of the inner wall of the production cylinder 1, add polypropylene and catalyst, start motor 7, so that motor 7 drives the guide cylinder 8 to rotate, so that the guide plate 9 moves the polypropylene particles, so that the polypropylene particles are dispersed to the inner wall of the production cylinder 1, thereby accelerating the melting of polypropylene particles.
[0031] The molten polypropylene flows downward through the filter plate 14, and the particles are intercepted at the top of the filter plate 14, thus ensuring that the polypropylene material discharged later does not contain large particles.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A Unipol gas-phase polypropylene production apparatus, comprising a production cylinder (1), characterized in that: The production cylinder (1) is fixedly provided with a top cover (2) at the upper end. The production cylinder (1) is provided with a heating chamber (3) inside. A liquid inlet pipe (4) is fixedly provided on one side of the heating chamber (3). A liquid outlet pipe (5) is fixedly provided on one side of the lower end of the heating chamber (3). An adjustment structure (6) is fixedly provided at the upper end of the top cover (2). The adjustment structure (6) includes a motor (7) fixedly provided at the upper end of the top cover (2). A guide cylinder (8) is fixedly provided on the outer wall of the output shaft of the motor (7). A guide plate (9) is fixedly provided at the lower end of the guide cylinder (8). The front and rear ends of the guide plate (9) are both planar. A fixing member (13) is fixedly provided on the inner wall of the production cylinder (1). A filter plate (14) is fixedly provided at the upper end of the fixing member (13).
2. The Unipol gas-phase polypropylene production apparatus according to claim 1, characterized in that: The upper end of the guide tube (8) is fixedly provided with an installation plate (11), the outer wall of the output shaft of the motor (7) is fixed with a fixing plate (10), the upper end of the installation plate (11) is fixedly provided with a first screw (12), the output end of the first screw (12) passes through the fixing plate (10) and the outer wall is fixedly provided with a hexagonal nut.
3. The Unipol gas-phase polypropylene production apparatus according to claim 1, characterized in that: The lower end of the guide plate (9) is attached to the upper end of the filter plate (14).
4. The Unipol gas-phase polypropylene production apparatus according to claim 1, characterized in that: The upper ends of the fastener (13) are fixedly provided with second screws (15), and the filter plate (14) has two mounting holes (16) inside. The output end of the second screw (15) passes through the mounting hole (16) and the outer wall is threaded with a nut (17).
5. The Unipol gas-phase polypropylene production apparatus according to claim 4, characterized in that: The nut (17) is a hexagonal nut with a closed upper end, and the nut (17) is made of steel.
6. The Unipol gas-phase polypropylene production apparatus according to claim 1, characterized in that: The lower end of the production cylinder (1) is fixedly provided with a discharge pipe, and a control valve is fixedly provided on the outer wall of the discharge pipe.
7. The Unipol gas-phase polypropylene production apparatus according to claim 1, characterized in that: The upper end of the production cylinder (1) is fixed with multiple bolts in a ring. The output end of the bolts passes through the upper cover (2) and the outer wall is threaded with a nut.
8. The Unipol gas-phase polypropylene production apparatus according to claim 1, characterized in that: A support is fixedly installed at the lower end of the outer wall of the production cylinder (1).