Far infrared steam double-heating stirring and crushing reaction kettle
By designing a far-infrared steam double heating stirring and crushing reaction kettle, the problems of inconvenient addition of sulfuric acid, easy coking and carbonization of materials and single heating methods in traditional sulfonation reaction equipment are solved, and more uniform stirring and crushing are achieved, reaction efficiency and safety are improved, and reaction interruption is avoided through multi-heat source heating.
Patent Information
- Application Number
- CN202421450708.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-24
AI Technical Summary
Traditional sulfonation reaction equipment has problems such as inconvenient addition of sulfuric acid, easy coking and carbonization of materials, and single heating methods, resulting in operational safety hazards, uneven reactions and inevitable losses.
A far-infrared steam double heating stirring and crushing reactor is designed, and a U-shaped stirring shaft and scraper are used for stirring and crushing. A liquid cloth pipe is set to facilitate the addition of sulfuric acid, and multi-heat source heating is realized through a steam heating chamber and a far-infrared heater.
The reaction kettle avoids coking and carbonization of the materials through uniform stirring and crushing, improves reaction efficiency and safety, and avoids reaction interruptions caused by power outages or steam shutdowns through multiple heat sources.
Smart Images
Figure CN222901087U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reaction kettles, in particular to a far-infrared steam double-heating stirring and crushing reaction kettle. Background Technique
[0002] The traditional sulfonation reaction is to build an arched furnace with refractory bricks, add a small ball mill with high manganese wear-resistant steel balls, seal it in the furnace, heat the furnace, drive the ball mill to run with an electric motor, suck the material into the ball mill with a vacuum, then add a certain proportion of sulfuric acid and heat it to make the sulfuric acid react with the material. Evaporate the water in the sulfuric acid, and suck the evaporated water vapor and the acidic gas generated by the material and sulfuric acid into the alkaline water neutralization tank for neutralization. Bake and grind the material to 80-100 meshes, add water and discharge it to complete this operating procedure.
[0003] The traditional sulfonation equipment has the following disadvantages:
[0004] 1. When adding sulfuric acid, if the worker makes an operation error or the vacuum degree is insufficient, or the pipeline between the steam sucked in the ball mill and the acidic gas generated by the sulfuric acid and the material and the alkaline neutralization tank is blocked, positive pressure will be generated in the ball mill, and there is a risk of acid spraying, which may pose a safety hazard to the operating workers;
[0005] 2. When baking and grinding, it is not easy to control the time. If the grinding time of the material is short, the humidity of the retained material, and when discharging the material, the material adheres to the steel balls and the inner wall of the ball mill, which is difficult to clean;
[0006] 3. It is not easy to check the baking state, and the material is easy to coke and carbonize; in addition, the material adhering to the steel balls and the inner wall of the ball mill is also easy to coke and carbonize after being heated for a long time, increasing the subsequent usage amount of the extractant;
[0007] 4. The heating method is single. In case of gas or power outage, if the reaction is not complete, irreparable losses will be caused.
[0008] Therefore, it is very necessary to propose a far-infrared steam double-heating stirring and crushing reaction kettle to solve the above problems. Content of the Utility Model
[0009] (1) Technical Problems to be Solved
[0010] The purpose of the utility model is to provide a far-infrared steam double-heating stirring and crushing reaction kettle to solve the problems of inconvenient addition of sulfuric acid, easy coking and carbonization of materials, and single heating method in the traditional sulfonation equipment mentioned in the above background technique.
[0011] (2) Technical Solutions
[0012] To achieve the above objectives, the present utility model is realized through the following technical solutions: A far-infrared steam double-heating stirring and pulverizing reactor, comprising a reactor body and an upper head. At the inner bottom of the reactor body, there is a U-shaped stirring shaft and a horizontal stirring shaft driven by a variable-frequency motor to rotate. At positions corresponding to the side wall and the bottom of the reactor body, the horizontal stirring shaft is fixedly connected with scraping plates.
[0013] At the top end of the upper head, there is a vacuum suction pipe. Inside the top end of the reactor body, there is a liquid distribution pipe fixedly connected. Outside the reactor body, there are a feed pipe and an exhaust pipe fixedly connected. One end of each of the feed pipe and the exhaust pipe extends to the middle part inside the reactor body.
[0014] One side of the bottom end of the reactor body is connected with a discharge pipe. At the bottom of the reactor body, there is a steam heating chamber. Outside the reactor body, there are a steam inlet pipe and a steam outlet pipe communicated with the steam heating chamber. Outside the bottom end of the reactor body, there is a far-infrared heater sleeved.
[0015] Preferably, the U-shaped stirring shaft and the horizontal stirring shaft are perpendicular to each other in the horizontal direction.
[0016] Preferably, the liquid distribution pipe is annular, and a plurality of liquid outlets are spaced apart and arranged below the liquid distribution pipe.
[0017] Preferably, the distance between the scraping plate and the reactor wall is 1.5 - 2 mm.
[0018] Preferably, the variable-frequency motor is fixedly connected to the middle part of the bottom end of the reactor body. The output shaft of the reactor body penetrates into the interior of the reactor body and is rotatably connected with the reactor wall through a sealing bearing. Both the U-shaped stirring shaft and the horizontal stirring shaft are fixedly connected with the output shaft of the reactor body.
[0019] Preferably, on the upper head, there are a sight glass and a lighting lamp. Outside the upper head, there are a safety valve, a thermometer, a first pressure gauge, and a vacuum gauge.
[0020] Preferably, outside the middle part of the reactor body, there is a bracket fixedly connected, and a platform is fixed on the bracket.
[0021] Preferably, at the bottom end of the reactor body, there is a pressure relief valve communicated with the steam heating chamber and a second pressure gauge for detecting the steam pressure inside the steam heating chamber.
[0022] (III) Beneficial effects
[0023] Compared with the prior art, the present utility model provides a far-infrared steam double-heating stirring and pulverizing reactor, which has the following beneficial effects:
[0024] 1. The far-infrared steam double-heating stirring and crushing reactor stirs the materials in both horizontal and vertical directions by setting a U-shaped stirring shaft and a scraper, making the material stirring more uniform. At the same time, it can crush the materials, and the scraper scrapes off the materials adhering to the inner wall of the reactor body, avoiding coking and carbonization caused by the long-term baking of the materials adhering to the inner wall.
[0025] 2. The far-infrared steam double-heating stirring and crushing reactor is provided with a liquid distribution pipe to evenly add sulfuric acid into the reactor body, improving the reaction efficiency and making the addition of sulfuric acid more convenient.
[0026] 3. The far-infrared steam double-heating stirring and crushing reactor heats the steam heating chamber by setting a steam heating chamber and a far-infrared heater, adopting multi-source heating to avoid the interruption of the reaction caused by the influence of the reaction temperature due to accidental power failure or steam stop. Description of the Drawings
[0027] Figure 1 is a three-dimensional schematic diagram of the structure of the present utility model;
[0028] Figure 2 is a three-dimensional sectional schematic diagram of the structure of the present utility model;
[0029] Figure 3 is a sectional schematic diagram of the structure of the present utility model.
[0030] In the figure: 1. upper head; 2. reactor body; 3. platform; 4. bracket; 5. sight glass; 6. safety valve; 7. thermometer; 8. vacuum suction pipe; 9. first pressure gauge; 10. lighting lamp; 11. vacuum gauge; 12. liquid distribution pipe; 13. feed pipe; 14. far-infrared heater; 15. U-shaped stirring shaft; 16. scraper; 17. horizontal stirring shaft; 18. frequency conversion motor; 19. exhaust pipe; 20. steam heating chamber; 21. pressure relief valve; 22. second pressure gauge; 23. discharge pipe. Detailed Embodiments
[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0032] Please refer to Figures 1-3As shown in the figure, a far-infrared steam double-heating stirring and crushing reactor includes a kettle body 2 and an upper head 1. At the inner bottom of the kettle body 2, there are a U-shaped stirring shaft 15 and a horizontal stirring shaft 17 driven by a variable-frequency motor 18 to rotate. At positions corresponding to the side wall and the bottom of the kettle body 2, the horizontal stirring shaft 17 is fixedly connected with scraping plates 16. At the top of the upper head 1, there is a vacuum suction pipe 8. Inside the top of the kettle body 2, there is a liquid distribution pipe 12 fixedly connected. Outside the kettle body 2, there are a feed pipe 13 and an exhaust pipe 19 fixedly connected. One end of each of the feed pipe 13 and the exhaust pipe 19 extends to the middle inside of the kettle body 2. Preferably, the pipe orifices at the ends of the feed pipe 13 and the exhaust pipe 19 inside the kettle body 2 face downward. One side of the bottom end of the kettle body 2 is connected with a discharge pipe 23. At the bottom of the kettle body 2, there is a steam heating chamber 20. Outside the kettle body 2, there are a steam inlet pipe and an exhaust pipe communicating with the steam heating chamber 20. Outside the bottom end of the kettle body 2, there is a far-infrared heater 14 sleeved.
[0033] The U-shaped stirring shaft 15 and the horizontal stirring shaft 17 are driven by the variable-frequency motor 18 to rotate to stir the materials in both the horizontal and vertical directions, making the stirring of the materials more uniform. At the same time, they are arranged at the bottom of the kettle to crush the materials, and the scraping plates 16 scrape off the materials attached to the inner wall of the kettle body 2 to avoid coking and carbonization caused by the long-term baking of the materials attached to the inner wall. By setting the liquid distribution pipe 12, the reaction liquid can be evenly added to the kettle body 2, improving the reaction efficiency and making the addition of the reaction liquid more convenient. By extending one end of the feed pipe 13 and the exhaust pipe 19 inside the kettle body 2 to the middle inside of the kettle body 2, it is convenient for the water vapor in the kettle body 2 to be discharged and for feeding materials into the kettle body 2. By setting the steam heating chamber 20 and the far-infrared heater 14 to heat the steam heating chamber 20, it can avoid affecting the reaction temperature due to accidental power failure or steam stop, resulting in the interruption of the reaction.
[0034] To further improve the stirring effect, the U-shaped stirring shaft 15 and the horizontal stirring shaft 17 are perpendicular to each other in the horizontal direction.
[0035] In some embodiments, the liquid distribution pipe 12 is annular, and a plurality of liquid outlets are spaced apart below the liquid distribution pipe 12. By adopting the annular liquid distribution pipe 12, the reaction liquid can be evenly fed into the kettle body 2, improving the mixing efficiency of the reaction liquid with the materials in the kettle body 2.
[0036] To avoid the scraping plates 16 damaging the inner wall of the kettle body 2 and at the same time reducing the attachment thickness of the materials on the inner wall of the kettle body 2, the distance between the scraping plates 16 and the kettle wall is 1.5 - 2 mm. By controlling the attachment thickness of the materials on the inner wall of the kettle body 2, the amount of carbonized and coked materials is reduced.
[0037] Specifically, the variable-frequency motor 18 is fixedly connected to the middle of the bottom end of the kettle body 2. The output shaft of the kettle body 2 penetrates through the inside of the kettle body 2 and is rotatably connected with the kettle wall through a sealed bearing. The U-shaped stirring shaft 15 and the horizontal stirring shaft 17 are both fixedly connected to the output shaft of the kettle body 2.
[0038] Specifically, a sight glass 5 and a lighting lamp 10 are provided on the upper head 1. Lighting is carried out through the lighting lamp 10 so as to view the baking degree of the materials in the kettle through the sight glass 5, avoiding carbonization and coking. A safety valve 6, a thermometer 7, a first pressure gauge 9 and a vacuum gauge 11 are provided on the outer side of the upper head 1. By setting the safety valve 6, the pressure can be relieved in time to avoid potential safety hazards caused by overpressure in the reaction kettle. By setting the thermometer 7, the temperature in the kettle can be monitored. By setting the first pressure gauge 9, the air pressure in the kettle can be monitored. By setting the vacuum gauge 11, the vacuum degree in the kettle can be monitored.
[0039] In some embodiments, in order to facilitate viewing the sight glass 5, a bracket 4 is fixedly connected to the outer side of the middle part of the kettle body 2, and a platform 3 is fixed on the bracket 4.
[0040] In some embodiments, a pressure relief valve 21 communicating with the steam heating chamber 20 and a second pressure gauge 22 for detecting the steam pressure in the steam heating chamber 20 are provided at the bottom end of the kettle body 2. By setting the pressure relief valve 21, the pressure can be relieved in time to avoid potential safety hazards caused by overpressure. By setting the second pressure gauge 22, the air pressure in the steam heating chamber 20 can be monitored.
[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A far-infrared steam dual-heating stirring and crushing reaction kettle, comprising a kettle body (2) and an upper head (1), characterized in that: The inner bottom of the kettle body (2) is provided with a U-shaped stirring shaft (15) and a horizontal stirring shaft (17) which are driven to rotate by a variable frequency motor (18); the horizontal stirring shaft (17) is fixedly connected with a scraper (16) at positions corresponding to the side wall and the bottom of the kettle body (2); A vacuum suction pipe (8) is provided at the top end of the upper end cover (1), a liquid distribution pipe (12) is fixedly connected to the inner side of the top end of the kettle body (2), a feed pipe (13) and an exhaust pipe (19) are fixedly connected to the outer side of the kettle body (2), and one end of each of the feed pipe (13) and the exhaust pipe (19) extends to the inner middle part of the kettle body (2); A discharge pipe (23) is connected to one side of the bottom end of the kettle body (2), a steam heating chamber (20) is provided at the bottom of the kettle body (2), a steam inlet pipe and a steam exhaust pipe connected to the steam heating chamber (20) are provided on the outside of the kettle body (2), and a far-infrared heater (14) is sleeved on the outside of the bottom end of the kettle body (2).
2. The far-infrared steam dual-heating stirring and crushing reactor according to claim 1, characterized in that: The U-shaped stirring shaft (15) and the horizontal stirring shaft (17) are perpendicular to each other in the horizontal direction.
3. The far-infrared steam dual-heating stirring and crushing reactor according to claim 1, characterized in that: The liquid distribution pipe (12) is annular in shape, and a plurality of liquid outlets are provided at intervals below the liquid distribution pipe (12).
4. The far-infrared steam dual-heating stirring and crushing reactor according to claim 1, characterized in that: The distance between the scraper (16) and the kettle wall is 1.5-2 mm.
5. The far-infrared steam dual-heating stirring and crushing reactor according to claim 1, characterized in that: The variable frequency motor (18) is fixedly connected to the middle of the bottom end of the kettle body (2); the output shaft of the kettle body (2) passes through the interior of the kettle body (2) and is rotatably connected to the kettle wall via a sealed bearing; the U-shaped stirring shaft (15) and the horizontal stirring shaft (17) are both fixedly connected to the output shaft of the kettle body (2).
6. The far-infrared steam dual-heating stirring and crushing reactor according to claim 1, characterized in that: The upper sealing head (1) is provided with a sight glass (5) and an illuminating lamp (10), and the outer side of the upper sealing head (1) is provided with a safety valve (6), a temperature gauge (7), a first pressure gauge (9) and a vacuum gauge (11).
7. The far-infrared steam dual-heating stirring and crushing reactor according to claim 1, characterized in that: A bracket (4) is fixedly connected to the outer side of the middle part of the kettle body (2), and a platform (3) is fixed on the bracket (4).
8. The far-infrared steam dual-heating stirring and crushing reactor according to claim 1, characterized in that: The bottom end of the kettle body (2) is provided with a pressure relief valve (21) communicating with the steam heating chamber (20) and a second pressure gauge (22) for detecting the steam pressure in the steam heating chamber (20).