Material conveying structure for polypropylene reaction kettle
By using a connecting pipe, a shaped adjusting wheel, and an extrusion ring in the polypropylene reactor, the problem of poor sealing of the feed pipe was solved, achieving a firm connection and seal between the feed pipe and the connecting pipe, preventing propylene leakage, and improving production efficiency.
Patent Information
- Application Number
- CN202520181560.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-05
AI Technical Summary
When the feed pipe of the existing polypropylene reactor is connected to the air inlet, there is a problem of poor air tightness, which can easily lead to air leakage or detachment, resulting in propylene leakage and economic losses.
A feeding structure for a polypropylene reactor is adopted, including a connecting pipe, a shaped adjusting wheel, an extrusion ring, and an elastic sealing sleeve. By rotating the control, the shaped adjusting wheel is driven to push the driven rod, so that the extrusion ring extrudes the elastic sealing sleeve to achieve a seal on the feed pipe. The feed pipe is fixed by adjusting the screw sleeve and the extrusion plate.
It improves the sealing effect between the feed pipe and the connecting pipe, avoids air leakage, has a simple structure, is easy to operate, is firmly fixed, and improves installation efficiency.
Smart Images
Figure CN223579195U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material conveying technology, specifically to a material conveying structure for a polypropylene reactor. Background Technology
[0002] Polypropylene (PP) is a thermoplastic resin, a polymer produced by the addition polymerization of propylene monomers. PP is non-toxic, odorless, has low density, and superior strength, rigidity, hardness, and heat resistance compared to low-density polyethylene (LDPE), allowing it to be used above 100°C. PP possesses good electrical properties and high-frequency insulation, unaffected by humidity. However, it becomes brittle, less wear-resistant, and prone to aging at low temperatures. When producing PP in a reactor, propylene gas needs to be filled into the reactor. During material transfer, the propylene gas is typically pumped into the reactor using an air pump, which is usually fixed to the reactor's inlet via a pipeline.
[0003] Currently, when most pipes are connected to the air inlet of the polypropylene reactor, they are usually directly fitted onto the inlet and fixed with clamps. Although this method is easy to install, it has poor airtightness and is prone to leakage or falling off. This phenomenon causes propylene to leak and be wasted, resulting in economic losses. Utility Model Content
[0004] The purpose of this invention is to provide a material conveying structure for a polypropylene reactor to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a conveying structure for a polypropylene reactor, comprising a connecting pipe, one end of which has two rotating grooves, each with a rotatably connected shaped adjusting wheel inside; the inner surface of each of the two rotating grooves has an adjusting groove, and each of the two adjusting grooves has a driven rod slidably connected inside; the other end of the connecting pipe has a positioning groove, the inner surface of which communicates with the interior of the connecting pipe, and the two adjusting grooves communicate with the interior of the positioning groove; a compression ring is slidably connected inside the positioning groove, one end of which is fixedly connected to one end of each of the two driven rods; a fixing head is threadedly connected to one end of the connecting pipe at the positioning groove, and an elastic sealing sleeve is fixedly connected inside the fixing head, one end of which is inserted into the interior of the positioning groove.
[0006] As a further preferred embodiment of this technical solution, four extrusion plates are fixedly connected inside the fixing head, and an adjusting sleeve is threadedly connected to one end of the fixing head, with one end of the adjusting sleeve contacting one end of each of the four extrusion plates.
[0007] As a further preferred embodiment of this technical solution, one end of the adjusting screw sleeve is provided with a guide surface, and one end of each of the four extrusion plates is fixedly connected with a driven head, the outer surface of the four driven heads being in contact with the surface of the guide surface.
[0008] As a further preferred embodiment of this technical solution, each of the two irregularly shaped adjusting wheels has a control handle fixedly connected to one end through the inner surface of the adjusting groove, and a fixing seat is fixedly connected to the outer surface of the connecting pipe.
[0009] As a further preferred embodiment of this technical solution, a limiting plate is rotatably connected inside the fixed base, and fixed rings are slidably connected on both sides of the fixed base. The outer surface of the fixed rings is slidably disposed with the surface of the limiting plate, and the outer surface of the control arm is engaged with the inside of the fixed base.
[0010] As a further preferred embodiment of this technical solution, a connector is fixedly inserted into the other end of the connecting pipe, and a connector nut is rotatably connected to one end of the connector.
[0011] As a further preferred embodiment of this technical solution, a sealing gasket is fixedly connected to the other end of the connector, and the other end of the sealing gasket is in close contact with the inside of the connecting pipe.
[0012] This utility model provides a material conveying structure for a polypropylene reactor, which has the following advantages:
[0013] (1) This utility model drives two irregularly shaped adjusting wheels to rotate simultaneously by rotating the control handle. During the rotation, the irregularly shaped adjusting wheels push two driven rods to move in the adjusting groove, thereby driving the extrusion ring to extrude the elastic sealing sleeve. Under the pressure, the elastic sealing sleeve deforms and is extruded into the positioning groove and the connection position of the connecting pipe. This realizes that the elastic sealing sleeve extrudes the outer surface of the feed pipe of the reactor, so that the connection position of the connecting pipe and the feed pipe is sealed, which improves the sealing effect. The structure is simple, the operation is convenient, and the air leakage is avoided.
[0014] (2) By rotating the adjusting screw sleeve, the adjusting screw sleeve enters the fixed head. During the movement, it contacts the guide surface and the driven head. Under the action of the subsequent adjusting screw sleeve, the extrusion plate shrinks inward and extrudes and fixes the feed pipe, thereby achieving rapid and firm fixing between the fixed head and the feed pipe and improving installation efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0016] Figure 2 This is an exploded view of the overall structure of this utility model;
[0017] Figure 3This is a schematic diagram of the internal structure of the connecting pipe and the fixing head of this utility model;
[0018] Figure 4 This is an exploded view of the fixed head structure of this utility model.
[0019] In the diagram: 1. Connecting pipe; 2. Rotating groove; 3. Irregularly shaped adjusting wheel; 4. Adjusting groove; 5. Driven rod; 6. Positioning groove; 7. Extrusion ring; 8. Elastic sealing sleeve; 9. Fixed head; 10. Extrusion plate; 11. Adjusting screw sleeve; 12. Guide surface; 13. Driven head; 14. Connecting head; 15. Sealing gasket; 16. Connecting nut; 17. Control handle; 18. Fixed seat; 19. Limiting plate; 20. Fixed ring. Detailed Implementation
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0021] This utility model provides a technical solution: such as Figure 1-3 As shown in this embodiment, a material conveying structure for a polypropylene reactor includes a connecting pipe 1. One end of the connecting pipe 1 has two rotating grooves 2, and each of the two rotating grooves 2 is rotatably connected to a shaped adjusting wheel 3. The inner surface of each of the two rotating grooves 2 has an adjusting groove 4, and each of the two adjusting grooves 4 is slidably connected to a driven rod 5. The other end of the connecting pipe 1 has a positioning groove 6, the inner surface of which is connected to the inside of the connecting pipe 1. The two adjusting grooves 4 are connected to the inside of the positioning groove 6. A compression ring 7 is slidably connected inside the positioning groove 6, one end of which is fixedly connected to one end of each of the two driven rods 5. A fixing head 9 is threadedly connected to one end of the connecting pipe 1 at the positioning groove 6. An elastic sealing sleeve 8 is fixedly connected inside the fixing head 9, and one end of the elastic sealing sleeve 8 is inserted into the positioning groove 6. By setting the shaped adjusting wheel 3, the driven rod 5 can be pushed to move within the adjusting groove 4 during rotation, thereby achieving the compression effect of the compression ring 7 on the elastic sealing sleeve 8.
[0022] like Figure 3 and Figure 4 As shown, four extrusion plates 10 are fixedly connected inside the fixing head 9. One end of the fixing head 9 is threadedly connected to an adjusting sleeve 11. One end of the adjusting sleeve 11 is in contact with one end of the four extrusion plates 10. By setting the extrusion plates 10, the outer surface of the feed tube can be wrapped. By setting the adjusting sleeve 11, the extrusion plates 10 can be squeezed, so that the extrusion plates 10 bend under pressure and squeeze the feed tube, thereby fixing the feed tube.
[0023] like Figure 4As shown, one end of the adjusting screw sleeve 11 is provided with a guide surface 12, and one end of each of the four extrusion plates 10 is fixedly connected with a driven head 13. The outer surface of the four driven heads 13 is in contact with the surface of the guide surface 12. Through the cooperation between the guide surface 12 and the driven head 13, it can be ensured that the extrusion plate 10 always retracts towards the center.
[0024] like Figure 2 and Figure 3 As shown, one end of each of the two irregularly shaped adjusting wheels 3 passes through the inner surface of the adjusting groove 4 and is fixedly connected to a control handle 17. The outer surface of the connecting pipe 1 is fixedly connected to a fixing seat 18. By setting the control handle 17, the irregularly shaped adjusting wheels 3 can be easily controlled. By setting the fixing seat 18, the control handle 17 can be fixed.
[0025] like Figure 1 and Figure 2 As shown, a limiting plate 19 is rotatably connected inside the fixed base 18, and a fixing ring 20 is slidably connected on both sides of the fixed base 18. The outer surface of the fixing ring 20 is slidably set with the surface of the limiting plate 19, and the outer surface of the control handle 17 is engaged with the inside of the fixed base 18. By setting the limiting plate 19 and the fixing ring 20, the control handle 17 can be limited to prevent it from falling off inside the fixed base 18.
[0026] like Figure 2 and Figure 3 As shown, a connector 14 is fixedly inserted into the other end of the connecting pipe 1, and a connecting nut 16 is rotatably connected to one end of the connector 14. The connector 14 is used to connect with the connecting pipe of the air pump.
[0027] like Figure 2 As shown, a sealing gasket 15 is fixedly connected to the other end of the connector 14. The other end of the sealing gasket 15 is in close contact with the inside of the connecting pipe 1, which can improve the sealing performance.
[0028] This utility model provides a material conveying structure for a polypropylene reactor, the specific working principle of which is as follows:
[0029] The worker inserts the fixing head 9 and the connecting pipe 1 onto the feed pipe. Then, the worker rotates the adjusting screw sleeve 11, causing the adjusting screw sleeve 11 to enter the interior of the fixing head 9. During the movement, the guide surface 12 contacts the driven head 13, and under the thrust of the adjusting screw sleeve 11, the extrusion plate 10 contracts inward, extruding the feed pipe and fixing the connecting pipe 1. After fixing, the worker rotates the control handle 17, which drives the two irregularly shaped adjusting wheels 3 to rotate simultaneously. This causes the irregularly shaped adjusting wheels 3 to push the two driven rods 5 to move, thereby driving the extrusion ring 7 to extrude the elastic sealing sleeve 8. Under pressure, the elastic sealing sleeve 8 deforms and is extruded into the positioning groove 6 and the connecting pipe 1, sealing the feed pipe and the connecting pipe 1.
[0030] 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 these 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 material conveying structure for polypropylene reaction vessels, comprising a butt joint pipe (1), characterized in that: The butt joint pipe (1) is provided with two rotating grooves (2) at one end, two profile adjusting wheels (3) are rotatably connected inside the two rotating grooves (2), adjusting grooves (4) are formed in the inner surfaces of the two rotating grooves (2), two driven rods (5) are slidably connected inside the two adjusting grooves (4), a positioning groove (6) is formed at the other end of the butt joint pipe (1), the inner surface of the positioning groove (6) is connected with the inside of the butt joint pipe (1), the two adjusting grooves (4) and the positioning groove (6) are connected, a pressing ring (7) is slidably connected inside the positioning groove (6), one end of the pressing ring (7) is fixedly connected with one end of the two driven rods (5), a fixed head (9) is threadedly connected at one end of the butt joint pipe (1) located in the positioning groove (6), an elastic sealing sleeve (8) is fixedly connected inside the fixed head (9), and one end of the elastic sealing sleeve (8) is inserted into the inside of the positioning groove (6).
2. The material conveying structure for polypropylene polymerizers according to claim 1, characterized in that: Four pressing pieces (10) are fixedly connected inside the fixed head (9), an adjusting screw sleeve (11) is threadedly connected at one end of the fixed head (9), and one end of the adjusting screw sleeve (11) is in contact with one end of the four pressing pieces (10).
3. The material conveying structure for polypropylene polymerizers according to claim 2, characterized in that: A guide surface (12) is formed at one end of the adjusting screw sleeve (11), and a driven head (13) is fixedly connected at one end of each of the four pressing pieces (10), and the outer surfaces of the four driven heads (13) are in contact with the surface of the guide surface (12).
4. The material conveying structure for polypropylene polymerizers according to claim 1, characterized in that: One end of each of the two profile adjusting wheels (3) penetrates through the inner surface of the adjusting groove (4) and is fixedly connected with a control handle (17), and a fixed seat (18) is fixedly connected to the outer surface of the butt joint pipe (1).
5. The material conveying structure for a polypropylene reactor according to claim 4, wherein: A limiting plate (19) is rotatably connected inside the fixed seat (18), fixed rings (20) are slidably connected on both sides of the fixed seat (18), the outer surfaces of the fixed rings (20) are slidably arranged on the surface of the limiting plate (19), and the outer surface of the control handle (17) is clamped with the inside of the fixed seat (18).
6. The material conveying structure for a polypropylene reactor according to claim 5, wherein: A connecting head (14) is fixedly inserted at the other end of the butt joint pipe (1), and a connecting nut (16) is rotatably connected at one end of the connecting head (14).
7. The material conveying structure for a polypropylene reactor according to claim 6, wherein: A sealing gasket (15) is fixedly connected at the other end of the connecting head (14), and the other end of the sealing gasket (15) is in close contact with the inside of the butt joint pipe (1).