Reaction kettle for isopropanol production

By introducing a filter and agitator into the reactor used for isopropanol production, the problems of gas pressure and pollution during aeration were solved, and safety and agitation efficiency were improved.

CN223931392UActive Publication Date: 2026-02-24WEIFANG ZHONGAN RUBBER MATERIAL CO LTD
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Patent Information

Application Number
CN202520102361.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2026-02-24
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

The existing isopropanol production reactors do not have exhaust devices during the aeration process, which leads to increased gas pressure and pollution of the indoor environment by harmful substances, posing a safety hazard.

Method used

A filter assembly containing activated carbon and a catalyst is installed in the reactor to adsorb and convert harmful gases. The stirring efficiency is improved by a stirring assembly and an aeration assembly, and a scraper is used to prevent material from adhering.

Benefits of technology

It effectively reduces the gas pressure inside the reactor, converts harmful gases into harmless gases, prevents pollution and safety accidents, and improves stirring efficiency and uniformity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a reaction kettle for isopropanol production, which belongs to the technical field of reaction kettles and comprises a reaction kettle body, a filter component is fixedly connected to one side of the upper surface of the reaction kettle body, a stirring component is fixedly mounted in the middle of the upper surface of the reaction kettle body, and a threaded hole is formed in the end of the stirring component. The interior of the threaded hole is in threaded connection with a rubbing assembly, and the bottom end of the outer surface of the stirring assembly is rotationally connected with an aeration assembly. According to the present invention, with the arrangement of the filtration assembly, the gas generated in the reaction kettle body rises into the first box body, the active carbon primarily adsorbs the harmful molecules in the gas, and the gas enters the catalyst in the second box body through the gas outlet pipe to react with the harmful gas so as to convert the gas into the harmless gas, and the harmless gas is discharged through the exhaust pipe; on one hand, dangerous accidents caused by overlarge gas pressure in the reaction kettle body can be avoided, and on the other hand, harmful substances in the gas can be prevented from polluting the indoor environment.
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Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, specifically a reaction vessel for isopropanol production. Background Technology

[0002] Isopropanol (C3H8O), also known as 2-propanol, is a colorless, volatile liquid with an irritating odor. It is mainly used as a solvent and disinfectant. It is usually produced by the reaction of propylene with water or the dehydrogenation reaction of propane. It is widely used in industrial, medical and personal care fields. Isopropanol is flammable and has a certain degree of toxicity. Safety precautions should be taken when using it to avoid inhalation of high concentrations of vapor and skin contact.

[0003] An investigation revealed that a Chinese utility model patent discloses a reaction vessel for isopropanol production (publication number: CN215312399U), which includes a support base. A reaction vessel body is installed at the middle of the top of the support base. A first air inlet pipe is fixedly installed on one side of the top of the reaction vessel body. A silent air extraction structure is fixedly installed at one end of the first air inlet pipe. A second air inlet pipe is fixedly installed on the other side of the top of the reaction vessel body. A sealing sleeve is threaded onto one end of the second air inlet pipe. A gas guide pipe communicating with the first and second air inlet pipes is fixedly installed at the top of the inner cavity of the reaction vessel body. Extension pipes are fixedly installed at both ends of the gas guide pipe.

[0004] Although the aforementioned patent uses an aeration method for stirring via a gas guide pipe, extension pipe, first gas disc, gas pipe frame, and second gas disc, which not only improves the efficiency of the stirring reaction, but also consumes less power compared to a drive motor, reducing electricity costs, and uses a silent fan for extraction to reduce noise and optimize the workshop environment, the aeration disc increases the gas pressure in the reactor during use, requiring venting. However, the aforementioned device does not have a venting device, and isopropanol is toxic during the reaction; indiscriminate discharge could easily pollute the indoor environment and harm operators.

[0005] Therefore, this invention provides a reaction vessel for isopropanol production to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a reaction vessel for isopropanol production, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: including a reaction vessel body, a filter assembly fixedly connected to one side of the upper surface of the reaction vessel body, a stirring assembly fixedly installed in the middle of the upper surface of the reaction vessel body, a threaded hole opened at the end of the stirring assembly, a scraping assembly threadedly connected inside the threaded hole, and an aeration assembly rotatably connected to the bottom of the outer surface of the stirring assembly.

[0010] The filtration assembly includes a first housing, the lower surface of which is fixedly connected to one side of the upper surface of the reactor body. Activated carbon is disposed inside the first housing. An exhaust pipe is fixedly connected to the upper surface of the first housing. A second housing is fixedly connected to the outer surface of the exhaust pipe. A catalyst is disposed inside the second housing. An exhaust pipe is fixedly connected to the upper surface of the second housing.

[0011] As a preferred technical solution of this application, the stirring assembly includes a drive motor, the lower surface of which is fixedly installed in the middle of the upper surface of the reactor body, the output end of which is fixedly connected to a stirring rod, and the outer surface of which is fixedly connected to a stirring blade.

[0012] As a preferred technical solution of this application, the scraping component includes a fixing plate, the interior of which is connected to the end of the stirring blade by bolts, and a scraper is fixedly connected to the exterior of the fixing plate.

[0013] As a preferred technical solution of this application, the aeration assembly includes an air distribution plate, the middle part of which is rotatably connected to the bottom end of the outer surface of the stirring rod, an aeration plate is fixedly installed on the upper surface of the air distribution plate, an air inlet pipe is fixedly connected to one side of the outer surface of the air distribution plate, and a fan is fixedly connected to one end of the air inlet pipe.

[0014] As a preferred technical solution of this application, a discharge port is provided on one side of the lower surface of the reactor body, and a discharge pipe is fixedly connected inside the discharge port.

[0015] As a preferred technical solution of this application, a feed inlet is provided on the other side of the upper surface of the reactor body, and a feed pipe is fixedly connected inside the feed inlet.

[0016] (III) Beneficial Effects

[0017] 1. Through the set filter components, the gas generated in the reactor body rises into the first chamber, where activated carbon preliminarily adsorbs the harmful molecules in the gas. The gas then enters the catalyst inside the second chamber through the gas outlet pipe, where it reacts with the harmful gas and converts it into harmless gas, which is then discharged through the exhaust pipe. This not only avoids excessive gas pressure inside the reactor body, which could lead to dangerous accidents, but also prevents harmful substances in the gas from polluting the indoor environment and causing harm to the operators.

[0018] 2. The set stirring and aeration components are connected to an external power source to start the drive motor, which drives the stirring rod to rotate, causing the stirring blades to rotate and mix the liquid inside the reactor. At the same time, the blower is started to deliver gas into the gas distribution plate through the air inlet pipe and spray it out through the aeration plate to mix the liquid inside the reactor. The combination of the two components can improve the stirring efficiency and make the stirring more uniform and thorough. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a reaction vessel used for isopropanol production.

[0020] Figure 2 This is a schematic diagram of the structure of a reactor body in a reactor used for isopropanol production.

[0021] Figure 3 This is a schematic diagram of the structure of activated carbon in a reactor used for isopropanol production.

[0022] Figure 4 This is a schematic diagram of the drive motor in a reactor used for isopropanol production.

[0023] Figure 5 This is a schematic diagram of the structure of a blower in a reactor used for isopropanol production.

[0024] In the picture:

[0025] 1. Reactor body; 2. First chamber; 3. Activated carbon; 4. Gas outlet pipe; 5. Second chamber; 6. Catalyst; 7. Exhaust pipe; 8. Drive motor; 9. Stirring rod; 10. Stirring blade; 11. Fixing plate; 12. Bolt; 13. Scraper; 14. Gas distribution plate; 15. Aeration plate; 16. Gas inlet pipe; 17. Blower; 18. Discharge pipe; 19. Feed pipe. Detailed Implementation

[0026] 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.

[0027] This utility model provides a reaction vessel for isopropanol production, such as... Figures 1-5As shown, a reactor for isopropanol production includes a reactor body 1. A filter assembly is fixedly connected to one side of the upper surface of the reactor body 1. A stirring assembly is fixedly installed in the middle of the upper surface of the reactor body 1. A threaded hole is opened at the end of the stirring assembly. A scraping assembly is threadedly connected inside the threaded hole. An aeration assembly is rotatably connected to the bottom of the outer surface of the stirring assembly.

[0028] The filtration assembly includes a first housing 2, the lower surface of which is fixedly connected to one side of the upper surface of the reactor body 1. Activated carbon 3 is installed inside the first housing 2. An exhaust pipe 4 is fixedly connected to the upper surface of the first housing 2. A second housing 5 is fixedly connected to the outer surface of the exhaust pipe 4. A catalyst 6 is installed inside the second housing 5. An exhaust pipe 7 is fixedly connected to the upper surface of the second housing 5. Gas generated in the reactor body 1 rises into the first housing 2. The activated carbon 3 preliminarily adsorbs harmful molecules in the gas. The gas then enters the catalyst 6 inside the second housing 5 through the exhaust pipe 4, reacting with the harmful gas and converting it into harmless gas, which is then discharged through the exhaust pipe 7. This design avoids excessive gas pressure inside the reactor body 1, preventing dangerous accidents, and also prevents harmful substances in the gas from polluting the indoor environment and causing harm to operators.

[0029] The stirring assembly includes a drive motor 8. The lower surface of the drive motor 8 is fixedly installed in the middle of the upper surface of the reactor body 1. The output end of the drive motor 8 is fixedly connected to a stirring rod 9. The outer surface of the stirring rod 9 is fixedly connected to a stirring blade 10. When the external power supply starts the drive motor 8, it drives the stirring rod 9 to rotate, causing the stirring blade 10 to rotate, which can mix and stir the liquid inside the reactor body 1.

[0030] The scraping assembly includes a fixing plate 11, the inside of which is threadedly connected to the end of the stirring blade 10 by bolts 12. A scraper 13 is fixedly connected to the outside of the fixing plate 11. The scraper 13 is made of silicone. The fixing plate 11 is fixed to the end of the stirring blade 10 by bolts 12. During the rotation of the stirring blade 10, the scraper 13 is driven to rotate, which can scrape the inner wall of the reaction vessel 1 to prevent isopropanol from adhering too much to its surface and affecting the uniformity of mixing.

[0031] The aeration assembly includes a gas distribution plate 14, the middle of which is rotatably connected to the bottom of the outer surface of the stirring rod 9. An aeration plate 15 is fixedly installed on the upper surface of the gas distribution plate 14. An air inlet pipe 16 is fixedly connected to one side of the outer surface of the gas distribution plate 14. A blower 17 is fixedly connected to one end of the air inlet pipe 16. When the blower 17 is started, gas is delivered into the gas distribution plate 14 through the air inlet pipe 16 and sprayed out through the aeration plate 15 to mix and stir the liquid inside the reactor body 1. Combined with the stirring of the stirring blades 10, the stirring efficiency can be improved, and the stirring can be more uniform and thorough.

[0032] A discharge port is provided on one side of the lower surface of the reactor body 1. A discharge pipe 18 is fixedly connected inside the discharge port, through which the produced isopropanol can be discharged.

[0033] A feed inlet is provided on the other side of the upper surface of the reactor body 1. A feed pipe 19 is fixedly connected inside the feed inlet, through which the raw materials for isopropanol production can be conveniently fed into the reactor body 1.

[0034] Working steps: First, the raw materials for isopropanol production are conveniently fed into the reactor body 1 through the feed pipe 19. Then, the external power supply starts the drive motor 8, which drives the stirring rod 9 to rotate, causing the stirring blades 10 to rotate and mix the liquid inside the reactor body 1. At the same time, the blower 17 is started to deliver gas into the gas distribution plate 14 through the air inlet pipe 16, and sprays it out through the aeration plate 15 to mix the liquid inside the reactor body 1. During the rotation of the stirring blades 10, the scraper 13 is driven to rotate through the fixing plate 11, which can scrape the inner wall of the reactor body 1. Next, the gas generated in the reactor body 1 rises into the first chamber 2, where the activated carbon 3 preliminarily adsorbs the harmful molecules in the gas. The gas then enters the catalyst 6 inside the second chamber 5 through the gas outlet pipe 4, reacts with the harmful gas, and converts it into harmless gas, which is discharged through the exhaust pipe 7. Finally, the produced isopropanol is discharged through the discharge pipe 18.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A reaction vessel for isopropanol production, comprising a reaction vessel body (1), characterized in that: A filter assembly is fixedly connected to one side of the upper surface of the reactor body (1), and a stirring assembly is fixedly installed in the middle of the upper surface of the reactor body (1). A threaded hole is opened at the end of the stirring assembly, and a scraping assembly is threadedly connected inside the threaded hole. An aeration assembly is rotatably connected to the bottom of the outer surface of the stirring assembly. The filter assembly includes a first housing (2), the lower surface of which is fixedly connected to one side of the upper surface of the reactor body (1). Activated carbon (3) is disposed inside the first housing (2). An exhaust pipe (4) is fixedly connected to the upper surface of the first housing (2). A second housing (5) is fixedly connected to the outer surface of the exhaust pipe (4). A catalyst (6) is disposed inside the second housing (5). An exhaust pipe (7) is fixedly connected to the upper surface of the second housing (5).

2. The reaction vessel for isopropanol production according to claim 1, characterized in that: The stirring assembly includes a drive motor (8), the lower surface of which is fixedly installed in the middle of the upper surface of the reactor body (1), and a stirring rod (9) is fixedly connected to the output end of the drive motor (8). A stirring blade (10) is fixedly connected to the outer surface of the stirring rod (9).

3. The reaction vessel for isopropanol production according to claim 1, characterized in that: The scraping assembly includes a fixing plate (11), the interior of which is threaded to the end of the stirring blade (10) by bolts (12), and a scraper (13) is fixedly connected to the outside of the fixing plate (11).

4. The reaction vessel for isopropanol production according to claim 1, characterized in that: The aeration assembly includes an air distribution plate (14), the middle part of which is rotatably connected to the bottom end of the outer surface of the stirring rod (9). An aeration plate (15) is fixedly installed on the upper surface of the air distribution plate (14). An air inlet pipe (16) is fixedly connected to one side of the outer surface of the air distribution plate (14), and a blower (17) is fixedly connected to one end of the air inlet pipe (16).

5. The reaction vessel for isopropanol production according to claim 1, characterized in that: A discharge port is provided on one side of the lower surface of the reactor body (1), and a discharge pipe (18) is fixedly connected inside the discharge port.

6. The reaction vessel for isopropanol production according to claim 1, characterized in that: A feed inlet is provided on the other side of the upper surface of the reactor body (1), and a feed pipe (19) is fixedly connected inside the feed inlet.

Citation Information

Patent Citations

  • Reaction kettle for isopropanol production

    CN215312399U