PET (Polyethylene Terephthalate) reaction kettle convenient for feeding

By introducing a feeding block and a multi-stage sealing structure into the PET reactor, the problems of leakage and impurity mixing during the feeding process were solved, achieving sealed feeding, improving feeding accuracy and reaction stability, and enhancing production efficiency and product quality.

CN224086674UActive Publication Date: 2026-04-07ANQING TIANLI PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing PET reactors are prone to leakage during the feeding process, leading to material waste and environmental pollution. At the same time, external impurities can easily mix in, affecting product quality.

Method used

A PET reactor including a feeding block and a sealing assembly was designed. The feeding block's temporary storage port and multi-stage sealing structure achieve sealed feeding, ensuring that the reactor does not leak during feeding and preventing external impurities from entering.

Benefits of technology

This achieves a well-sealed feeding process, reducing material loss and impurity contamination, improving feeding accuracy and reaction stability, and enhancing production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of reaction kettles, and discloses a PET (Polyethylene Terephthalate) reaction kettle convenient for feeding, which comprises a reaction kettle, a feeding opening is formed in one side of the reaction kettle, and an adding assembly convenient for adding materials into the reaction kettle is arranged in the feeding opening. The adding assembly is provided with a sealing assembly capable of keeping the sealing performance of the reaction kettle when materials are added; and by arranging the adding assembly and the sealing assembly, the convenient, efficient and well-sealed feeding process is achieved. A first temporary storage opening and a controllable baffle in the adding assembly facilitate quantitative adding of materials, and the feeding precision and the reaction stability are improved; each stage of sealing structure comprises a first sealing plate, a second sealing plate, a sealing cover, a third sealing plate and the like, so that the sealing performance of the reaction kettle during feeding is effectively ensured, the risks of material leakage and impurity mixing are reduced, the product quality is further improved, the production cost is reduced, and the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, and in particular to a PET reaction vessel that is easy to feed materials into. Background Technology

[0002] An easy-to-feed PET reactor is a device specifically designed for the production of PET (polyethylene terephthalate). It addresses the inconvenience of feeding in traditional reactors by optimizing the design. Typically, it features a special feeding port, feeding device, or auxiliary structure, such as a flexible, appropriately sized feeding port, or a feeding system with automatic conveying and metering functions. This effectively improves the efficiency, accuracy, and safety of feeding, reduces manual labor intensity, ensures the smooth operation of the PET production process, and maintains product quality stability. It may also take into account coordination with other functions within the reactor, such as stirring and heating.

[0003] In the current PET reactor, when workers need to add materials, they need to open the reactor, add the materials, and then close the feed port. This operation results in the reactor being in a leaking state during the time materials are added. Frequent leaks not only waste materials but may also pollute the production environment. At the same time, external impurities can easily enter the reactor, interfering with the PET reaction process and affecting product quality. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a PET reactor that is easy to feed materials into.

[0005] This utility model is achieved by the following technical solution: a PET reactor that is easy to feed materials into, including a reactor, a feeding port is provided on one side of the reactor, and an feeding component is provided inside the feeding port to facilitate the addition of materials into the reactor. The feeding component is provided with a sealing component that can maintain the sealing of the reactor when adding materials. The feeding component includes a feeding block disposed inside the feeding port, a first temporary storage port penetrating through itself is provided in the middle of the feeding block, and a baffle is provided at the bottom of the feeding block.

[0006] With the above technical solution, when feeding materials into the reactor, the materials can be placed in the first temporary storage port first, the feeding block can be pushed to move the first temporary storage port into the reactor, and then the control baffle can be pulled out. The materials will fall into the reactor from the first temporary storage port. The whole feeding process can prevent the reactor from leaking and achieve quantitative addition of materials, avoiding a large amount of materials from rushing into the reactor at one time, which would affect the stability of the reaction. This makes the feeding operation more convenient and controllable.

[0007] As a further improvement to the above solution, the bottom of the feeding block is provided with a sliding groove, the inside of the sliding groove is provided with a first sealing plate, the top of the first sealing plate is fixedly installed with the top of the sliding groove, the top of the first sealing plate is provided with a second temporary storage port that penetrates itself, the second temporary storage port has the same length and width as the first temporary storage port, the baffle is located inside the sliding groove, and the top of the baffle is in contact with the bottom of the first sealing plate.

[0008] Through the above technical solution, the first sealing plate and the baffle cooperate with each other. When the baffle is closed, the first sealing plate can fit with the baffle, effectively preventing leakage at the bottom of the feeding block, further enhancing the sealing performance during the feeding process, and reducing material loss and environmental pollution.

[0009] As a further improvement to the above solution, the feeding block has movable grooves on both sides, and movable blocks are slidably installed inside the two movable grooves. The two movable blocks are arranged in an "L" shape, and one end of the two movable blocks is fixedly installed with a baffle.

[0010] With the above technical solution, operators can push or pull the moving block to move the baffle in the sliding groove, making operation more convenient and improving feeding efficiency.

[0011] As a further improvement to the above solution, the sealing assembly includes a limiting frame fixedly installed inside the feeding port in an open shape, and a second sealing plate in an open shape is fixedly installed on the inner wall of the limiting frame, the inner wall of the second sealing plate being in contact with the outer surface of the feeding block.

[0012] Through the above technical solution, the second sealing plate fits tightly with the feeding block, further ensuring the sealing of the reactor during the feeding process, preventing gas leakage and the entry of external impurities, ensuring that the reaction takes place in a stable environment, and helping to improve product quality.

[0013] As a further improvement to the above solution, both ends of the feeding block are fixedly installed with sealing caps, and a third sealing plate with an opening shape is fixedly installed inside the two sealing caps. A first handle is fixedly installed on one side of the sealing cap located outside the reactor. The same end of the two moving blocks and the baffle passes through the adjacent sealing cap, and a second handle is fixedly installed at the end of the baffle that passes through the sealing cap.

[0014] Through the above technical solutions, the sealing cover and the third sealing plate further enhance the sealing effect of the feeding port; the first handle allows the operator to operate the feeding block as a whole, such as pulling the feeding block out of or pushing it into the feeding port; the second handle allows for individual control of the opening and closing of the baffle, making the operation more user-friendly and convenient.

[0015] As a further improvement to the above solution, a limiting plate with an "L" shape is provided on one side of the second handle. One side of the limiting plate is in contact with the adjacent sealing cover. A limiting plate with a concave shape is fitted on the outside of the limiting plate. The limiting plate is fixedly installed with the adjacent sealing cover.

[0016] Through the above technical solution, the limiting plate and the restricting plate work together to effectively limit the movement range of the baffle, prevent the baffle from moving excessively and causing the seal to fail, and also prevent the baffle from being removed from the normal working position due to operator misoperation, thereby improving the safety and stability of the equipment.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention achieves a convenient, efficient, and well-sealed feeding process by incorporating a feeding component and a sealing component. The first temporary storage port and controllable baffle in the feeding component facilitate quantitative material addition, improving feeding accuracy and reaction stability. The multi-stage sealing structure, including a first sealing plate, a second sealing plate, a sealing cover, and a third sealing plate, effectively ensures the sealing of the reactor during feeding, reducing the risk of material leakage and impurity contamination, thereby improving product quality, reducing production costs, and increasing production efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the reaction vessel of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the present invention, which includes an adding component and a sealing component;

[0022] Figure 4 A cross-sectional structural diagram of the added components and sealing components of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the feeding block of this utility model.

[0024] Explanation of key symbols:

[0025] 1. Reactor; 2. Feed port; 301. Feed block; 302. First temporary storage port; 303. Baffle; 401. Limiting frame; 402. Second sealing plate; 5. First sealing plate; 6. Moving block; 7. Sealing cover; 8. Third sealing plate; 9. First handle; 10. Second handle; 11. Limiting plate; 12. Restriction plate. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Please combine Figures 1-5 This embodiment of a PET reactor that facilitates material feeding includes a reactor 1. A feeding port 2 is provided on one side of the reactor 1. The feeding port 2 is provided with an adding component that facilitates adding materials into the reactor 1. The adding component is provided with a sealing component that can maintain the sealing of the reactor 1 when adding materials.

[0028] The added component includes a feeding block 301 disposed inside the feeding port 2. The feeding block 301 has a first temporary storage port 302 extending through itself at its middle end. The feeding block 301 has a baffle 303 at its bottom and a sliding groove at its bottom. The sliding groove has a first sealing plate 5 disposed inside it. The top of the first sealing plate 5 is fixedly installed with the top of the sliding groove. The top of the first sealing plate 5 has a second temporary storage port extending through itself. The second temporary storage port has the same length and width as the first temporary storage port 302. The baffle 303 is located inside the sliding groove, and the top of the baffle 303 is in contact with the bottom of the first sealing plate 5.

[0029] When feeding material into reactor 1, the material can be placed in the first temporary storage port 302 first, the feeding block 301 can be pushed to move the first temporary storage port 302 into the reactor 1, and then the control baffle 303 can be pulled out. The material will fall into reactor 1 from the first temporary storage port 302. The whole feeding process can prevent reactor 1 from leaking and achieve quantitative feeding of material, avoiding a large amount of material from rushing into reactor 1 at one time, which would affect the stability of the reaction. This makes the feeding operation more convenient and controllable.

[0030] The feeding block 301 has movable slots on both sides, and movable blocks 6 are slidably installed inside the two movable slots. The two movable blocks 6 are both arranged in an "L" shape, and one end of the two movable blocks 6 is fixedly installed to the baffle 303.

[0031] Operators can push or pull the movable block 6 to move the baffle 303 within the sliding groove, making operation more convenient and improving feeding efficiency.

[0032] The sealing assembly includes a limiting frame 401 fixedly installed inside the feeding port 2 in an open shape, and a second sealing plate 402 fixedly installed on the inner wall of the limiting frame 401 in an open shape, the inner wall of the second sealing plate 402 being in contact with the outer surface of the feeding block 301.

[0033] The second sealing plate 402 fits tightly against the feeding block 301, further ensuring the sealing of the reactor 1 during the feeding process, preventing gas leakage and external impurities from entering the reactor 1, ensuring that the reaction takes place in a stable environment, which is conducive to improving product quality.

[0034] Both ends of the feeding block 301 are fixedly installed with sealing caps 7. Inside the two sealing caps 7, a third sealing plate 8 with an opening shape is fixedly installed. A first handle 9 is fixedly installed on one side of the sealing cap 7 located outside the reactor 1. The same end of the two moving blocks 6 and the baffle 303 passes through the adjacent sealing cap 7. A second handle 10 is fixedly installed at the end of the baffle 303 that passes through the sealing cap 7.

[0035] The sealing cover 7 and the third sealing plate 8 further enhance the sealing effect of the feeding port 2; the first handle 9 makes it convenient for operators to operate the feeding block 301 as a whole, such as pulling the feeding block 301 out of the feeding port 2 or pushing it in; the second handle 10 makes it convenient to control the opening and closing of the baffle 303 separately, making the operation more user-friendly and convenient.

[0036] The second handle 10 has an L-shaped limiting plate 11 on one side. One side of the limiting plate 11 is in contact with the adjacent sealing cover 7. The limiting plate 11 is fitted with a concave limiting plate 12 on the outside. The limiting plate 12 is fixedly installed with the adjacent sealing cover 7.

[0037] The limiting plate 11 and the restricting plate 12 work together to effectively limit the movement range of the baffle 303, preventing the baffle 303 from moving excessively and causing the seal to fail. At the same time, they can also prevent the baffle 303 from being removed from its normal working position due to operator error, thus improving the safety and stability of the equipment.

[0038] The implementation principle of a PET reactor that facilitates material feeding in this application embodiment is as follows: When performing the feeding operation, the operator first holds the first handle 9, pulls the feeding block 301 out of the feeding port 2 a certain distance, and then pours the material into the first temporary storage port 302.

[0039] After the material is added, push the feeding block 301 to reset it. At this time, the sealing cover 7 will be put on the limiting frame 401, so that the second sealing plate 402 is in contact with the feeding block 301, and the sealing of the connection between the limiting frame 401 and the feeding block 301 is guaranteed.

[0040] Next, when adding materials into the reactor 1, the operator pulls the limiting plate 11 out of the limiting plate 12 a certain distance to prevent the limiting plate 11 from affecting the movement of the baffle 303. Then, the operator holds the second handle 10 and pulls the baffle 303. After the baffle 303 moves a certain distance, the first temporary storage port 302 and the second temporary storage port will be exposed. At this time, the material falls into the reactor 1 from the first temporary storage port 302 through the second temporary storage port.

[0041] After feeding is completed, simply reinsert the baffle 303, then pull the first handle 9 to pull the feeding block 301 out of the feeding port 2. The sealing cover 7 inside the reactor 1 will be placed on the limiting frame 401 to prevent gas from leaking from the limiting frame 401. The limiting plate 11, together with the limiting plate 12, will block the baffle 303 again to prevent the baffle 303 from separating from the feeding block 301.

[0042] Throughout the feeding process, the sealing structures at all levels work together to ensure the stability of the internal environment of reactor 1 and prevent material leakage and the entry of external impurities.

[0043] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A PET reactor for easy feeding, comprising a reactor (1), characterized in that, The reactor (1) has a feeding port (2) on one side. The feeding port (2) is provided with a feeding component for adding materials into the reactor (1). The feeding component is provided with a sealing component that can maintain the sealing of the reactor (1) when adding materials. The feeding component includes a feeding block (301) disposed inside the feeding port (2). The feeding block (301) has a first temporary storage port (302) that penetrates through itself at the middle end. The feeding block (301) has a baffle (303) at the bottom.

2. The PET reactor for easy feeding as described in claim 1, characterized in that, The bottom of the feeding block (301) is provided with a sliding groove, and the inside of the sliding groove is provided with a first sealing plate (5). The top of the first sealing plate (5) is fixedly installed with the top of the sliding groove. The top of the first sealing plate (5) is provided with a second temporary storage port that penetrates through itself. The second temporary storage port has the same length and width as the first temporary storage port (302). The baffle (303) is located inside the sliding groove, and the top of the baffle (303) is in contact with the bottom of the first sealing plate (5).

3. The PET reactor for easy feeding as described in claim 1, characterized in that, The feeding block (301) has a moving groove on both sides, and a moving block (6) is slidably installed inside the two moving grooves. The two moving blocks (6) are both arranged in an "L" shape, and one end of the two moving blocks (6) is fixedly installed with the baffle (303).

4. The PET reactor for easy feeding as described in claim 1, characterized in that, The sealing assembly includes a limiting frame (401) fixedly installed inside the feeding port (2) in an open shape. A second sealing plate (402) in an open shape is fixedly installed on the inner wall of the limiting frame (401). The inner wall of the second sealing plate (402) is in contact with the outer surface of the feeding block (301).

5. A PET reactor for easy feeding as described in claim 3, characterized in that, Both ends of the feeding block (301) are fixedly installed with sealing caps (7). Inside the two sealing caps (7), a third sealing plate (8) with an opening shape is fixedly installed. A first handle (9) is fixedly installed on one side of the sealing cap (7) located outside the reactor (1). The same end of the two moving blocks (6) and the baffle (303) penetrates the adjacent sealing cap (7). A second handle (10) is fixedly installed at one end of the baffle (303) that penetrates the sealing cap (7).

6. A PET reactor for easy feeding as described in claim 5, characterized in that, The second handle (10) has an L-shaped limiting plate (11) on one side. One side of the limiting plate (11) is in contact with the adjacent sealing cover (7). The limiting plate (11) is fitted with a concave limiting plate (12) on the outside of the limiting plate (11). The limiting plate (12) is fixedly installed with the adjacent sealing cover (7).