Stirring device for polytetrafluoroethylene modified plastic production
By introducing multiple annular jets and gas-solid separation mechanisms into the stirring device, the problem of uneven stirring is solved, and uniform stirring and air flow management of polytetrafluoroethylene is realized, thereby improving the stirring effect and efficiency.
Patent Information
- Application Number
- CN202420686019.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-07
AI Technical Summary
When the existing stirring device stirs polytetrafluoroethylene, especially in the upper and middle layers of the stirring barrel, the stirring effect is poor, resulting in uneven stirring and making it difficult to achieve efficient material mixing.
A stirring device is designed including a plurality of jets distributed in an annular array, forming an airflow stirring area at the bottom of the stirring space through the jets, providing a stirring air flow in conjunction with a coil and a gas supply mechanism, and avoiding materials through a sealing and gas-solid separation mechanism. Enter the jet pipe and airflow leaks.
The uniform stirring of materials in the stirring area is achieved, the stirring effect is improved, the jet pipe is blocked and the airflow is leaked, and the efficiency and effect of the stirring process is ensured.
Smart Images
Figure CN222135545U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of polytetrafluoroethylene production equipment, and specifically relates to a stirring device for the production of polytetrafluoroethylene modified plastics. Background Art
[0002] In the process of developing ultra-high cleanliness of polytetrafluoroethylene, it is necessary to add a certain amount of solid or liquid additives to polytetrafluoroethylene to modify the polytetrafluoroethylene and facilitate the production of polytetrafluoroethylene. A stirring device is required in the production process to stir the polytetrafluoroethylene.
[0003] The existing stirring device includes a stirring barrel, a stirring rod and a driving member for driving the stirring rod to stir. The existing stirring rod is generally at the bottom of the stirring barrel during stirring. The stirring effect of the upper and middle layers of the stirring barrel is poor during stirring, and uneven stirring is prone to occur. Utility Model Content
[0004] The purpose of the utility model is to provide a stirring device for producing polytetrafluoroethylene modified plastics, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a stirring device for the production of polytetrafluoroethylene modified plastics, comprising: an equipment body and a stirring mechanism connected to a stirring space in the equipment body, the stirring mechanism comprising a plurality of jet parts for jetting, the plurality of jet parts are distributed in a circular array at the bottom of the stirring space, and a stirring area for aerating and stirring the material is formed above the plurality of jet parts.
[0006] Preferably, the equipment body comprises a stirring barrel and a feed hopper installed on the top of the stirring barrel, and the stirring space is formed between the feed hopper and the stirring barrel.
[0007] Preferably, the jet component comprises a jet pipe, the top ends of the plurality of jet pipes are all passed through the bottom of the mixing barrel into the mixing space, a coil is installed between the bottom ends of the plurality of jet pipes, and an air supply mechanism for air supply is installed on the coil.
[0008] Preferably, the air supply mechanism comprises an air suction pump, and an air inlet pipe is connected between the air suction pump and the coil.
[0009] Preferably, a blocking mechanism is also installed on the top of the inside of the air jet pipe, and the blocking mechanism is used to limit the material from entering the air jet pipe.
[0010] Preferably, the sealing mechanism includes a sealing plate, a ring seat, a mounting frame and a baffle which are sequentially installed in the air jet pipe from top to bottom, the sealing plate is sealed on the top of the ring seat, the ring seat and the mounting frame are both installed on the inner wall of the air jet pipe, a guide rod which movably passes through the mounting frame is installed between the sealing plate and the baffle, and a second spring which is sleeved on the guide rod is installed between the mounting frame and the baffle.
[0011] Preferably, a gas-solid separation mechanism is installed between the feed hopper and the stirring barrel, and the separation mechanism is used to limit the material from leaving the stirring space.
[0012] Preferably, the separation mechanism includes a material discharge cone and a material stop ring installed at intervals from top to bottom, the top of the material discharge cone extends into the feed hopper, a connecting piece is installed between the material discharge cone and the mixing barrel, and a channel for gas-solid separation is formed in the gap between the feed hopper, the material discharge cone and the material stop ring, the inner diameter of the material stop ring is smaller than the outer diameter of the bottom end of the material discharge cone, and an oblique wave for material discharge is provided between the top outer diameter and the inner diameter of the material stop ring.
[0013] Preferably, the separation mechanism also includes two movable blanking plates, and the ends of the two movable blanking plates that are separated from each other are respectively rotatably installed on the inner walls on both sides of the symmetrical side of the feed hopper. A buffer mechanism connected to the feed hopper is installed at the bottom of each movable blanking plate, and the two buffer mechanisms are used to drive one end of the two movable blanking plates to move inward or expand outward.
[0014] Preferably, the buffer mechanism includes a retractable first telescopic rod and a second telescopic rod, one end of the first telescopic rod is rotatably mounted on the corresponding movable unloading plate, one end of the second telescopic rod is rotatably mounted on the inner wall of the feed hopper, and the second telescopic rod is installed with a first spring for driving the first telescopic rod to retract.
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] (1) The utility model adds a plurality of jet parts, which can drive the material to be stirred by airflow in the stirring area, thereby facilitating uniform stirring of materials at different layers in the stirring area and improving the stirring effect of the equipment.
[0017] (2) The utility model can conveniently supply air to multiple jet pipes at the same time through the additional coil and air supply mechanism, so as to provide stirring airflow in the stirring area through the jet pipe.
[0018] (3) The utility model has an additional blocking mechanism, which can prevent materials from entering the jet pipe when the jet pipe is not jetting, thereby preventing the jet pipe from being blocked.
[0019] (4) The utility model adds a separation mechanism to prevent the water flow from being discharged outward through the feed hopper when the material is stirred by the air flow. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a front view of the utility model;
[0021] Figure 2 This is a structural schematic diagram of the first embodiment of the separation mechanism of the utility model;
[0022] Figure 3 This is a structural schematic diagram of the second embodiment of the separation mechanism of the utility model;
[0023] Figure 4 It is a top view of the mixing barrel and the air jet pipe of the utility model;
[0024] Figure 5 This is a schematic diagram of the matching of the buffer mechanism of the utility model;
[0025] Figure 6 This is a schematic diagram of the cooperation between the jet pipe and the blocking mechanism of the utility model;
[0026] In the figure: 1. feed hopper; 2. mixing barrel; 3. jet pipe; 4. coil; 5. air inlet pipe; 6. vacuum pump; 7. baffle ring; 8. unloading cone; 9. movable unloading plate; 10. first telescopic rod; 11. second telescopic rod; 12. first spring; 13. sealing plate; 14. ring seat; 15. baffle; 16. second spring; 17. mounting frame; 18. guide rod. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] refer to Figure 2-3 As shown, the utility model provides a stirring device for the production of polytetrafluoroethylene modified plastics, including an equipment body and a stirring mechanism connected to a stirring space in the equipment body, the stirring mechanism including a plurality of jet parts for jetting, the plurality of jet parts are distributed in a ring array at the bottom of the stirring space, and a stirring area for aerating and stirring the material is formed above the plurality of jet parts.
[0029] Combination Figure 1-3 As shown, the equipment body includes a mixing barrel 2 and a feed hopper 1 installed on the top of the mixing barrel 2 , and a mixing space is formed between the feed hopper 1 and the mixing barrel 2 .
[0030] As mentioned above, when using the equipment body and stirring mechanism provided by the utility model, the stirring barrel 2 in the equipment body provides a container for the material, and the material can be introduced into the stirring barrel 2 through the feed hopper 1. At this time, the external gas can be sprayed into the stirring barrel 2 through the jet part, so that the material can be stirred by the airflow in the stirring barrel 2 with the sprayed airflow, thereby realizing uniform stirring of the material by the equipment.
[0031] In the present utility model, combined with Figure 4 As shown, the jet component of this embodiment includes a jet pipe 3, the top ends of the multiple jet pipes 3 are all penetrated from the bottom of the mixing barrel 2 into the mixing space, the bottom ends of the multiple jet pipes 3 are connected and installed with a coil 4, and the coil 4 is installed with an air supply mechanism for supplying air.
[0032] Combination Figure 1 As shown, the air supply mechanism includes an air pump 6 , and an air inlet pipe 5 is connected between the air pump 6 and the coil 4 .
[0033] As mentioned above, when using the jet component provided by the utility model, the air inlet pipe 5 in the air supply mechanism is connected with the multiple jet pipes 3 through the coil 4, and the external gas can be provided to the multiple jet pipes 3 through the vacuum pump 6, so that the collected gas is sprayed to the stirring area through the multiple jet pipes 3, and then an airflow for stirring the material is formed in the stirring area, so that the material is stirred by the airflow in the stirring area.
[0034] In the present utility model, combined with Figure 6 As shown, a blocking mechanism is also installed at the top of the air injection pipe 3 of this embodiment, and the blocking mechanism is used to limit the material from entering the air injection pipe 3.
[0035] Combination Figure 6 As shown, the blocking mechanism includes a sealing plate 13, a ring seat 14, a mounting frame 17 and a baffle 15 which are sequentially installed in the air injection pipe 3 from top to bottom. The sealing plate 13 blocks the top of the ring seat 14. The ring seat 14 and the mounting frame 17 are both installed on the inner wall of the air injection pipe 3. A guide rod 18 that movably penetrates the mounting frame 17 is installed between the sealing plate 13 and the baffle 15. A second spring 16 that is sleeved on the guide rod 18 is installed between the mounting frame 17 and the baffle 15.
[0036] As mentioned above, when using the blocking mechanism provided by the utility model, the ring seat 14 and the mounting frame 17 in the blocking mechanism are both installed in the jet pipe 3, and the mounting frame 17 provides a mounting position for the guide rod 18, and the baffle 15 and the second spring 16 are installed between the guide rod 18 and the mounting frame 17. When there is no gas in the jet pipe 3, the elastic force of the second spring 16 is released, thereby driving the baffle 15 away from the mounting frame 17, and then driving the sealing plate 13 to abut against the ring seat 14 through the guide rod 18. At this time, the sealing plate 13 and the ring seat 14 block the jet pipe 3 to prevent materials from entering the jet pipe 3. When there is gas in the jet pipe 3, the gas applies a thrust to the sealing plate 13 to keep the sealing plate 13 away from the ring seat 14. At this time, the gas is ejected outward through the gap between the ring seat 14 and the sealing plate 13, thereby allowing the gas to be ejected outward through the jet pipe 3.
[0037] In the present utility model, combined with Figure 2-3 As shown, a gas-solid separation mechanism is installed between the feed hopper 1 and the mixing barrel 2 in this embodiment, and the separation mechanism is used to limit the material from leaving the mixing space.
[0038] As described above, when using the separation mechanism provided by the utility model, the airflow and the material can be separated between the feed hopper 1 and the mixing barrel 2 through the separation mechanism, so that the material enters the mixing barrel 2 and the gas is discharged to the outside through the feed hopper 1.
[0039] The above-mentioned separation mechanism has at least two embodiments when in use.
[0040] Embodiment 1
[0041] In this embodiment, combined with Figure 2 As shown, the separation mechanism of this embodiment includes a feed discharge cone 8 and a material retaining ring 7 installed at intervals from top to bottom, the top of the feed discharge cone 8 extends into the feed hopper 1, a connecting piece is installed between the feed discharge cone 8 and the mixing barrel 2, and a channel for gas-solid separation is formed in the gap between the feed hopper 1, the feed discharge cone 8 and the material retaining ring 7, the inner diameter of the material retaining ring 7 is smaller than the outer diameter of the bottom end of the feed discharge cone 8, and an oblique wave for material discharge is provided between the top outer diameter and the inner diameter of the material retaining ring 7.
[0042] As mentioned above, when using the discharge cone 8 and the baffle ring 7 provided in this embodiment, the discharge cone 8 and the baffle ring 7 are sequentially installed at the bottom of the feed hopper 1, thereby forming a channel for gas-solid separation between the feed hopper 1 and the mixing barrel 2. When the material is fed through the feed hopper 1, the material enters the mixing barrel 2 through the gap between the discharge cone 8 and the baffle ring 7. When the material in the mixing barrel 2 approaches the discharge cone 8 with the airflow, the discharge cone 8 releases force on the material, thereby allowing the material to enter the mixing barrel 2 again, and the approaching airflow is discharged outward through the gap between the baffle ring 7 and the discharge cone 8.
[0043] Embodiment 2
[0044] In this embodiment, combined with Figure 3 As shown, the separation mechanism of this embodiment also includes two movable blanking plates 9, and the ends of the two movable blanking plates 9 that are separated from each other are rotatably installed on the inner walls of the symmetrical sides of the feed hopper 1 respectively, and a buffer mechanism connected to the feed hopper 1 is installed at the bottom of each movable blanking plate 9. The two buffer mechanisms are used to drive one end of the two movable blanking plates 9 to move inward or expand outward.
[0045] As mentioned above, when using the two movable discharge plates 9 provided in the present embodiment, the two movable discharge plates 9 are rotatably installed on both sides symmetrically inside the feed hopper 1, and the two buffer mechanisms can allow the two movable discharge plates 9 to flip inward or flip outward. When the two movable discharge plates 9 are close to each other, the material in the mixing barrel 2 cannot be discharged outward through the feed hopper 1 with the airflow. When the two movable discharge plates 9 are away from each other, the discharge channel between the feed hopper 1 and the mixing barrel 2 is opened to facilitate the material to enter the mixing barrel 2.
[0046] Further, in order to facilitate the buffering adjustment of the movable blanking plate 9, refer to Figure 3 and Figure 5 As shown, the buffer mechanism includes a retractable first telescopic rod 10 and a second telescopic rod 11, one end of the first telescopic rod 10 is rotatably mounted on the corresponding movable unloading plate 9, one end of the second telescopic rod 11 is rotatably mounted on the inner wall of the feed hopper 1, and a first spring 12 for driving the first telescopic rod 10 to retract is installed in the second telescopic rod 11. The first telescopic rod 10 and the second telescopic rod 11 in the buffer mechanism are respectively rotatably installed between the movable discharge plate 9 and the feed hopper 1, and the first telescopic rod 10 and the second telescopic rod 11 are buffered and retracted by a first spring 12. When the material falls onto the two movable discharge plates 9 through the feed hopper 1, the two movable discharge plates 9 will be driven to expand outward, and the material can enter the mixing barrel 2 at this time. When there is no material on the movable discharge plate 9, the elastic force of the first spring 12 is released, thereby driving the first telescopic rod 10 to extend outward on the second telescopic rod 11, and then driving the bottom ends of the two movable discharge plates 9 to move inward, thereby blocking the channel between the mixing barrel 2 and the feed head, and preventing the material in the mixing barrel 2 from being discharged outward through the feed hopper 1 with the airflow.
[0047] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A stirring device for producing polytetrafluoroethylene modified plastics, characterized in that: include: The equipment body and the stirring mechanism connected to the stirring space in the equipment body, the stirring mechanism includes a plurality of jet parts for jetting, the plurality of jet parts are distributed in a ring array at the bottom of the stirring space, and a stirring area for aerating and stirring the material is formed above the plurality of jet parts.
2. A stirring device for producing polytetrafluoroethylene modified plastics according to claim 1, characterized in that: The equipment body comprises a stirring barrel (2) and a feed hopper (1) installed on the top of the stirring barrel (2), and the stirring space is formed between the feed hopper (1) and the stirring barrel (2).
3. A stirring device for producing polytetrafluoroethylene modified plastics according to claim 2, characterized in that: The jet component comprises a jet pipe (3), the top ends of the plurality of jet pipes (3) are all penetrated from the bottom of the mixing barrel (2) into the mixing space, a coil (4) is installed between the bottom ends of the plurality of jet pipes (3), and an air supply mechanism for supplying air is installed on the coil (4).
4. A stirring device for producing polytetrafluoroethylene modified plastics according to claim 3, characterized in that: The air supply mechanism comprises an air pump (6), and an air inlet pipe (5) is connected between the air pump (6) and the coil (4).
5. The stirring device for producing polytetrafluoroethylene modified plastic according to claim 3, characterized in that: A blocking mechanism is also installed at the top of the inside of the jet pipe (3), and the blocking mechanism is used to limit the entry of materials into the jet pipe (3).
6. A stirring device for producing polytetrafluoroethylene modified plastics according to claim 5, characterized in that: The blocking mechanism comprises a sealing plate (13), a ring seat (14), a mounting frame (17) and a baffle (15) which are sequentially installed in the air jet pipe (3) from top to bottom, the sealing plate (13) blocks the top of the ring seat (14), the ring seat (14) and the mounting frame (17) are both installed on the inner wall of the air jet pipe (3), a guide rod (18) which movably penetrates the mounting frame (17) is installed between the sealing plate (13) and the baffle (15), and a second spring (16) which is sleeved on the guide rod (18) is installed between the mounting frame (17) and the baffle (15).
7. The stirring device for producing polytetrafluoroethylene modified plastic according to claim 2, characterized in that: A gas-solid separation mechanism is also installed between the feed hopper (1) and the stirring barrel (2), and the separation mechanism is used to limit the material from leaving the stirring space.
8. A stirring device for producing polytetrafluoroethylene modified plastics according to claim 7, characterized in that: The separation mechanism comprises a material discharge cone (8) and a material stop ring (7) installed at intervals from top to bottom, the top end of the material discharge cone (8) extends into the feed hopper (1), a connecting piece is installed between the material discharge cone (8) and the mixing barrel (2), a channel for gas-solid separation is formed in the gap between the feed hopper (1), the material discharge cone (8) and the material stop ring (7), the inner diameter of the material stop ring (7) is smaller than the outer diameter of the bottom end of the material discharge cone (8), and an inclined wave for material discharge is provided between the top outer diameter and the inner diameter of the material stop ring (7).
9. A stirring device for producing polytetrafluoroethylene modified plastics according to claim 7, characterized in that: The separation mechanism also includes two movable material removal plates (9), the ends of the two movable material removal plates (9) being rotatably mounted on the inner walls of the symmetrical sides of the feed hopper (1) at opposite ends thereof, and a buffer mechanism connected to the feed hopper (1) is mounted at the bottom of each movable material removal plate (9), and the two buffer mechanisms are used to drive one end of the two movable material removal plates (9) to move inward or outward.
10. A stirring device for producing polytetrafluoroethylene modified plastics according to claim 9, characterized in that: The buffer mechanism comprises a telescopic first telescopic rod (10) and a second telescopic rod (11), one end of the first telescopic rod (10) being rotatably mounted on the corresponding movable unloading plate (9), one end of the second telescopic rod (11) being rotatably mounted on the inner wall of the feed hopper (1), and a first spring (12) for driving the first telescopic rod (10) to extend and retract is installed in the second telescopic rod (11).