Reaction kettle feeding device

Abstract

The utility model discloses a reaction kettle feeding device which comprises a reaction kettle, the reaction kettle is communicated with the feeding device through a feeding pipeline, the feeding device is used for sucking materials, the reaction kettle is communicated with an air extracting device through an air extracting pipeline, and the air extracting device is used for extracting air; the feeding device comprises a switching connector, the switching connector is connected with a liquid separation connector, and the liquid separation connector is communicated with the feeding container through a feeding pipeline. According to the utility model, the top of the reaction kettle is respectively communicated with the air extractor and the feeding device through the pipelines, during production, the air extractor is used for extracting air in the reaction kettle to generate a vacuum negative pressure environment, and then the feeding device is used for sucking an auxiliary agent in the funnel and a raw material in the charging basket into the reaction kettle together; and the water vapor content is effectively reduced while the vacuum of the reaction kettle is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, and specifically to a reaction vessel feeding device. Background Technology

[0002] Polyurethane adhesives are adhesives whose molecular chains contain urethane and isocyanate groups. Due to the presence of highly polar isocyanate and urethane groups, they have high reactivity and can cure at room temperature. Therefore, they have excellent adhesive properties on a variety of materials such as metals, rubber, glass, ceramics, plastics, wood, fabrics, and leather.

[0003] Polyurethane adhesives sometimes require vacuum dehydration and air isolation during production to prevent moisture from affecting adhesive quality. Currently, solid raw materials (such as adipic acid) are often manually added to the reactor during production. Since the feeding port is usually open, this allows a large amount of outside air to enter the reactor. Moisture in the air mixes into the reactor, affecting the quality of the polyurethane adhesive and potentially triggering side reactions that reduce product performance. Utility Model Content

[0004] The purpose of this utility model is to provide a reactor feeding device in order to solve the above problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including:

[0006] The reactor is connected to a feeding device via a feeding pipe. The feeding device is used to absorb materials. The reactor is connected to a gas extraction device via a gas extraction pipe. The gas extraction device is used to extract gases.

[0007] The feeding device includes an adapter, which is connected to a liquid separator, which is connected to a feeding container via a feeding pipe.

[0008] As a further description of the above technical solution, a feed inlet is provided on one side of the top of the reactor, and the feed inlet is connected to the adapter through a feed pipe.

[0009] As a further description of the above technical solution, an exhaust port is provided on the other side of the top of the reactor, and the exhaust port is connected to an exhaust device through an exhaust pipe.

[0010] As a further description of the above technical solution, the bottom of the reactor is provided with a discharge port, and the discharge port is provided with a discharge valve.

[0011] As a further description of the above technical solution, the feeding container includes a funnel and a material tank, and the liquid separator is connected to the funnel and the material tank respectively through the feeding pipe.

[0012] As a further description of the above technical solution, a first feed valve and a second feed valve are respectively provided on the feed pipes connected to both ends of the liquid separator.

[0013] As a further description of the above technical solution, the liquid separator is connected to the feed inlet through a first feed valve.

[0014] As a further description of the above technical solution, the liquid separator is connected to the funnel and the material tank through the second feed valve.

[0015] As a further description of the above technical solution, the air extraction device is a vacuum pump.

[0016] As a further description of the above technical solution, an air extraction valve is provided on the air extraction pipe connected to the air extraction device.

[0017] The beneficial effects of this utility model are as follows:

[0018] In this invention, the top of the reactor is connected to a vacuum pump and a feeding device via pipelines. During production, the vacuum pump extracts gas from the reactor to create a vacuum negative pressure environment, and the feeding device draws the additives from the funnel and the raw materials from the feed bucket into the reactor together. This effectively reduces the moisture content without affecting the vacuum of the reactor.

[0019] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the reactor feeding device of this utility model;

[0021] Figure 2 yes Figure 1 Enlarged diagram of point AA in the middle.

[0022] Figure label:

[0023] 1. Reactor; 11. Feed inlet; 12. Vacuum outlet; 13. Discharge outlet; 14. Discharge valve; 2. Feed pipe; 3. Feeding device; 31. Adapter joint; 32. Liquid separator joint; 33. First feed valve; 34. Second feed valve; 4. Vacuum pipe; 5. Vacuum device; 51. Vacuum pump; 52. Vacuum valve; 6. Feed container; 61. Funnel; 62. Material bucket. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figures 1-2 As shown, in one embodiment, a reactor feeding device includes: a reactor 1, a feeding device 3, and a vacuum device 5. The reactor 1 is connected to the feeding device 3 via a feeding pipe 2, allowing the feeding device 3 to draw material from the feeding container 6 into the reactor 1 for reaction. Correspondingly, the reactor 1 is connected to the vacuum device 5 via a vacuum pipe 4, allowing the vacuum device 5 to extract gas from the reactor 1 to create a vacuum. After opening the corresponding pipeline valve, the material can be gradually drawn into the reactor 1 under the action of the internal and external pressure difference.

[0026] Furthermore, the feeding device 3 includes a detachable adapter 31 and a liquid separator 32: the adapter 31 serves as a connecting component between the feeding device 3 and the feed inlet 11 of the reactor 1, acting as a transition and sealing component to ensure that the material can smoothly enter the reactor 1 from the feeding device 3, while the liquid separator 32 is connected to the feed container 6 through the feed pipe 2, so as to transport materials from different sources into the reactor 1 together.

[0027] In addition, the gas extraction device 5 uses a vacuum pump 51 to continuously extract the gas inside the reactor 1 to form a vacuum negative pressure environment. The vacuum pump 51 is connected to the gas extraction port 12 of the reactor 1 through the gas extraction pipe 4, and a gas extraction valve 52 is also provided on the gas extraction pipe 4 to control the start and stop of gas extraction and the gas extraction speed.

[0028] It should be noted in detail that a feed inlet 11 is provided on one side of the top of the reactor 1, which is connected to the adapter 31 of the feed device 3 via the feed pipe 2. This inlet is designed to be sealed to ensure that no air leakage enters the reactor 1 during the feeding process. Correspondingly, an exhaust port 12 is provided on the other side of the top of the reactor 1, which is connected to the exhaust device 5 via the exhaust pipe 4. The exhaust port 12 is designed to efficiently extract gas from the reactor 1, creating a vacuum environment. Furthermore, a discharge port 13 is provided at the bottom of the reactor 1, and a discharge valve 14 is installed at the discharge port 13 to control the discharge of materials after the reaction is completed. This valve, with its excellent sealing performance, prevents outside air from entering the reactor 1 during the discharge process.

[0029] Furthermore, the feed container 6 includes a funnel 61 and a storage tank 62. The funnel 61 is used to store solid or poorly flowing materials such as additives, while the storage tank 62 is used to store raw materials. Specifically, a first feed valve 33 is installed on the feed pipe 2 between the liquid separator 32 and the feed inlet 11 of the reactor 1, and is used to control the flow rate and on / off state of the material entering the reactor 1 from the liquid separator 32; while a second feed valve 34 is respectively installed on the feed pipe 2 connecting the liquid separator 32 to the funnel 61 and the storage tank 62, and controls the feed amount and feed rate of the additives and raw materials respectively.

[0030] It is understandable that the top of the reactor 1 is connected to the vacuum pump 5 and the feed device 3 through pipelines. During production, the vacuum pump 5 extracts the gas in the reactor 1 to create a vacuum negative pressure environment, and then the feed device 3 sucks the additives in the funnel 61 and the raw materials in the material bucket 62 into the reactor 1 together, which effectively reduces the water vapor content without affecting the vacuum of the reactor 1.

[0031] Working principle:

[0032] The top of the reactor 1 is connected to the vacuum pump 5 and the feed pump 3 via pipelines. During the production process, the discharge valve 14, the first feed valve 33 and the second feed valve 34 are closed first to ensure that the reactor 1 is in a closed state. Then the vacuum pump 52 is opened and the vacuum pump 51 is started to extract the gas in the reactor 1 through the vacuum pipe 4, so that a vacuum negative pressure environment is gradually formed in the reactor 1. When the vacuum degree in the reactor 1 reaches the set value, the vacuum pump 52 is closed to stop the vacuuming.

[0033] Next, according to the requirements of the production process, the corresponding second feed valve 34 is opened in sequence. Since the reactor 1 is in a vacuum negative pressure state, the additives in the funnel 61 and the raw materials in the material tank 62 will be drawn into the reactor 1 through the feed pipe 2 via the liquid separator 32 and the adapter 31 under the action of pressure difference. During the feeding process, by adjusting the opening of the first feed valve 33 and the second feed valve 34, the feed amount and feed speed of the material can be precisely controlled to ensure that the material enters the reactor 1 according to the predetermined ratio. When all the material has been fed, the first feed valve 33 and the second feed valve 34 are closed. At this time, the reactor 1 is in a sealed vacuum environment, and the material can react without interference from external air and water vapor.

[0034] Finally, after the reaction is complete, open the discharge valve 14 to discharge the reaction product from the discharge port 13 at the bottom of the reactor 1.

[0035] Through the above technical solution, this application creates a vacuum negative pressure environment inside the reactor 1, preventing the entry of external air and water vapor. At the same time, during the feeding process, the material is also drawn into the reactor 1 under vacuum, further reducing the introduction of water vapor, thereby effectively reducing the water vapor content in the reaction system and improving the quality of the product. By setting multiple feed valves, the feed amount and feed rate of the additives and raw materials can be precisely controlled separately, ensuring accurate material ratio, which is conducive to improving the stability of the reaction and the consistency of the product.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily 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 is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reactor feeding device, characterized in that, include: The reactor (1) is connected to the feeding device (3) through the feeding pipe (2). The feeding device (3) is used to absorb materials. The reactor (1) is connected to the gas extraction device (5) through the gas extraction pipe (4). The gas extraction device (5) is used to extract gas. The feeding device (3) includes an adapter (31), which is connected to a liquid separator (32), which is connected to the feeding container (6) through the feeding pipe (2).

2. The reactor feeding device according to claim 1, characterized in that, The reactor (1) has a feed inlet (11) on one side of its top, and the feed inlet (11) is connected to the adapter (31) through the feed pipe (2).

3. The reactor feeding device according to claim 1, characterized in that, The other side of the top of the reactor (1) is provided with an exhaust port (12), which is connected to the exhaust device (5) through an exhaust pipe (4).

4. The reactor feeding device according to claim 1, characterized in that, The bottom of the reactor (1) is provided with a discharge port (13), and the discharge port (13) is provided with a discharge valve (14).

5. The reactor feeding device according to claim 1, characterized in that, The feed container (6) includes a funnel (61) and a bucket (62), and the liquid separator (32) is connected to the funnel (61) and the bucket (62) respectively through the feed pipe (2).

6. The reactor feeding device according to claim 1, characterized in that, The feed pipes (2) connected to both ends of the liquid separator (32) are respectively equipped with a first feed valve (33) and a second feed valve (34).

7. The reactor feeding device according to claim 1, characterized in that, The liquid separator (32) is connected to the feed inlet (11) through the first feed valve (33).

8. The reactor feeding device according to claim 1, characterized in that, The liquid separator (32) is connected to the funnel (61) and the material tank (62) through the second feed valve (34).

9. The reactor feeding device according to claim 1, characterized in that, The air extraction device (5) is a vacuum pump (51).

10. The reactor feeding device according to claim 1, characterized in that, The air extraction device (5) is connected to an air extraction pipe (4) which is equipped with an air extraction valve (52).

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