Reaction kettle capable of preventing materials from adhering to inner wall of reaction kettle
By designing a combination of annular scraper and scraper in the reactor, the problem of liquid materials sticking to the inner wall after stirring and speed reduction is solved, effectively scraping the material and cleaning the inner wall are achieved, and cleaning difficulties caused by drying are avoided.
Patent Information
- Application Number
- CN202421573785.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-04
AI Technical Summary
During the stirring process of existing reactors, the liquid material adhered to the inner wall is difficult to wet again due to slowing down due to the slowing of stirring, and is prone to drying up and firmly attached to the inner wall, resulting in difficulty in cleaning.
A reactor including an annular scraper and a scraper is designed. By moving the annular scraper downward and scraping off the adhered material through the coordination of the moving rod and the scraper, the material adhered to the bottom end of the annular scraper is ensured that the material does not dry up on the scraper, and at the same time, the material adhered to the bottom end of the annular scraper is scraped off.
It effectively avoids materials sticking to the inner wall of the reactor due to drying, resulting in inconvenience in cleaning, and ensures the cleanliness and service life of the inner wall of the reactor.
Smart Images
Figure CN222930806U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reaction kettles, in particular to a reaction kettle for preventing materials from adhering to the inner wall of the reaction kettle. Background Art
[0002] Reaction kettles are widely used in the fields of petroleum, chemical industry, rubber, pesticides, dyes, medicine, food, etc. They are pressure vessels used to complete processes such as vulcanization, nitrification, hydrogenation, alkylation, polymerization, and condensation, such as reactors, reaction pots, decomposition pots, polymerization kettles, etc.; the materials are generally carbon manganese steel, stainless steel, zirconium, nickel-based, Hastelloy, Monel, Inconel, alloys and other composite materials, etc.
[0003] At present, the materials in the reaction kettle are mostly stirred during the reaction. During stirring, the liquid materials in the reaction kettle will form a vortex, so that the liquid materials can touch a higher position on the inner wall of the reaction kettle. If the stirring suddenly decelerates at this time, the height of the position touched by the liquid materials becomes lower. Because the area of the inner wall of the reaction kettle touched by the liquid materials before the speed change is different from the area of the inner wall of the reaction kettle touched after deceleration, the adhered materials in the non-overlapping part of the two areas will not be wetted again, and thus are prone to dry out. The dried materials are more difficult to clean than the wet materials. If the liquid materials are prone to condensation after drying, the dried materials will firmly adhere to the inner wall of the reaction kettle body and are extremely difficult to clean. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the defects in the prior art and provide a reaction kettle for preventing materials from adhering to the inner wall of the reaction kettle, which can scrape off the part of the materials that adhere to the inner wall of the reaction kettle and are difficult to be wetted again during the reaction process, and avoid the technical problem that the part of the materials that are not fully wetted adhere to the inner wall of the reaction kettle due to drying, resulting in difficult cleaning.
[0005] The purpose of the utility model is realized by the following technical solutions:
[0006] A reaction kettle for preventing materials from adhering to the inner wall of the reaction kettle includes a reaction kettle body and a top cover arranged at the top of the reaction kettle body; a rotating cylinder is vertically penetrated through the top cover, a stirring assembly is fixedly installed in the rotating cylinder, and a moving rod is slidably installed. A scraping blade capable of contacting the inner wall of the reaction kettle body is arranged at the bottom end of the moving rod, and a motor for driving the stirring assembly to rotate is arranged above the top cover; an annular scraping plate capable of performing vertical displacement and contacting the inner wall of the reaction kettle body is further arranged in the reaction kettle body; the scraping blade is located below the annular scraping plate.
[0007] Preferably, a hydraulic rod is arranged on the top cover, a connecting rod is arranged at the bottom end of the hydraulic rod, and the connecting rod is connected to the annular scraping plate.
[0008] Preferably, the stirring assembly includes a rotating shaft fixedly arranged in the rotating cylinder and having its top end connected to the output end of the motor, and a plurality of stirring blades arranged outside the rotating shaft.
[0009] Preferably, a stirring rod in contact with the bottom wall of the reaction kettle body is arranged at the bottom end of the rotating shaft.
[0010] Preferably, the moving rod above the top cover and the rotating shaft are fixed through an 8-shaped pipe sleeve.
[0011] Preferably, a slider is arranged on the outer wall of the moving rod below the top cover, and a vertical chute slidably matched with the slider is arranged on the surface of the rotating shaft.
[0012] Preferably, a frame body for placing the motor is arranged on the top cover.
[0013] Preferably, support legs are arranged at the bottom end of the reaction kettle body.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] By providing an annular scraper capable of displacing in the vertical direction, after deceleration, the annular scraper can move downward, thereby scraping down the materials adhering to the inner wall of the reaction kettle (here, the materials refer to: the areas of the inner wall of the reaction kettle body that the liquid materials can touch before speed change and after deceleration are different, and the materials adhering to the non-overlapping parts of the two areas). This can prevent the materials in this area from drying out due to long-term non-wetting and adhering to the inner wall of the reaction kettle, resulting in inconvenient cleaning. However, for some liquid materials with high viscosity, when scraping down, they will not directly fall into the reaction kettle body, but adhere to the annular scraper. Once the annular scraper is not in use, these materials will directly adhere to the bottom end of the annular scraper after drying, resulting in unsmooth or even difficult scraping of the materials again. Based on this, a moving rod is slidably arranged in the rotating cylinder, and a scraping blade is arranged at the bottom end of the moving rod. By moving the moving rod in the rotating cylinder until the scraping blade moves to contact the bottom end of the annular scraper, and then during the rotation of the rotating cylinder, the scraping blade is rotated to scrape off the materials adhering to the bottom end of the annular scraper, preventing the materials from adhering to the annular scraper. Then, the scraping blade is moved downward to the area where the materials can touch after deceleration to ensure that the materials will not dry on the scraping blade. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic cross-sectional structure view of the present utility model in the front view direction;
[0017] Figure 2 is Figure 1 the schematic structure view of the annular scraper in the top view direction in
[0018] Figure 3 is Figure 1 a schematic structural view of the scraping blade in the top-down direction in
[0019] Figure 4 a schematic structural view of the rotating cylinder in the top-down direction in the present utility model;
[0020] In the figure: 1 - reactor body, 2 - top cover, 3 - rotating cylinder, 4 - moving rod, 5 - scraping blade, 6 - motor, 7 - annular scraping plate, 8 - hydraulic rod, 9 - connecting rod, 10 - rotating shaft, 11 - stirring blade, 16 - stirring rod, 12 - pipe sleeve, 13 - slider, 14 - vertical chute, 15 - frame. Specific embodiments
[0021] The following combines the appended Figures 1 to 4 drawings in the present utility model to clearly and completely describe the technical solutions in the embodiments of the present utility model, but the protection scope of the present utility model is not limited to the following description.
[0022] Embodiment 1
[0023] A reactor for preventing materials from adhering to the inner wall of the reactor, as Figure 1 shown, includes a reactor body 1 and a top cover 2 provided at the top of the reactor body 1. The top cover 2 can be directly placed on the top of the reactor body 1 or can be limited by some limiting structures (prior art); as shown in FIGS. 1 and Figure 4 shown, a rotating cylinder 3 is vertically penetrated through the top cover 2, and the rotating cylinder 3 is rotatably connected to the top cover 2; a stirring assembly is fixedly installed in the rotating cylinder 3, and a moving rod 4 is slidably installed in the rotating cylinder 3, as Figures 1-3As shown, a scraping blade 5 capable of contacting the inner wall of the reactor body 1 is provided at the bottom end of the moving rod 4, and a motor 6 for driving the stirring assembly to rotate is provided above the top cover 2; an annular scraping plate 7 capable of performing vertical displacement and contacting the inner wall of the reactor body 1 is further provided in the reactor body 1; the scraping blade 5 is located below the annular scraping plate 7. Further, the stirring assembly includes a rotating shaft 10 fixedly arranged in the rotating cylinder 3 and having its top end connected to the output end of the motor 6, and a plurality of stirring blades 11 arranged outside the rotating shaft 10. Further, at least two hydraulic rods 8 are provided on the top cover 2, and a connecting rod 9 is provided at the bottom end of each hydraulic rod 8, and the connecting rod 9 is connected to the annular scraping plate 7. In addition, the moving rod 4 above the top cover 2 and the rotating shaft 10 are fixed by an 8-shaped sleeve 12, and screws are provided in the sleeve 12. Further, a frame body 15 for placing the motor 6 is provided on the top cover 2, and the frame body 15 includes two support rods provided at the top end of the top cover 2 and a top plate provided at the top ends of the support rods, and the motor 6 is located on the top plate.
[0024] Working principle: Liquid materials (referring to solid-liquid mixtures) are placed in the reactor body 1. After covering the top cover 2, the motor 6 is turned on to drive the rotating shaft 10 to drive the rotating cylinder 3 and multiple stirring blades 11 to rotate synchronously. Since the moving rod 4 and the rotating shaft 10 are fixed by the sleeve 12, the moving rod 4 will also rotate with the rotating shaft 10. Under the action of the stirring blades 11, the materials in the reactor body 1 can be fully mixed or fully reacted. After deceleration, the sleeve 12 is removed, and the moving rod 4 is moved down to the area that can be reached after deceleration. Then, the hydraulic rod 8 is started to move the annular scraping plate 7 down. During the downward movement, the materials adhering to the inner wall of the reactor body 1 (here the materials refer to: the areas on the inner wall of the reactor body 1 that can be reached by the liquid materials before speed change and the areas on the inner wall of the reactor body 1 that can be reached after deceleration are different, and the materials adhering to the non-overlapping parts of the two areas) are scraped down, thereby preventing this part of the materials from adhering to the inner wall of the reactor body 1 and making it difficult to clean the inner wall when it dries up and adheres to the inner wall of the reactor body 1. Then, the moving rod 4 is moved up until it contacts the bottom end of the annular scraping plate 7. Then, the moving rod 4 and the rotating shaft 10 are fixed with the sleeve 12, and the motor 6 is driven. Under the action of the motor 6, the moving rod 4 drives the scraping blade 5 to rotate, and during the rotation, the viscous materials adhering to the bottom end of the annular scraping plate 7 can be scraped off. Then, the annular scraping plate 7 is moved up. At this time, the motor 6 is turned off, and the sleeve 12 is removed, and the moving rod 4 is moved down until the scraping blade 5 is located in the area that can be reached by the materials after deceleration, so as to ensure that the viscous materials adhering to the scraping blade 5 will not dry up. Then normal deceleration stirring can be carried out.
[0025] Furthermore, if the liquid material is too viscous and the bottom end of the stirring blade 11 cannot contact the bottom wall of the reaction kettle body 1, it will cause the material in this part to not be fully stirred, and further cause the material on the inner wall of the reaction kettle body 1 to be not fully stirred or reacted. Based on this, on the basis of Embodiment 1, as Figures 1-3 shown, a stirring rod 16 that contacts the bottom wall of the reaction kettle body 1 is provided at the bottom end of the rotating shaft 10. By providing the stirring rod 16, the material on the inner wall of the reaction kettle body 1 can be effectively mixed with other materials, improving the mixing uniformity.
[0026] Furthermore, in order to firmly connect the moving rod 4 and the rotating shaft 10 and enable the moving rod 4 to move smoothly, as Figures 1-3 shown, a slider 13 is provided on the outer wall of the moving rod 4 below the top cover 2, and a vertical chute 14 that is slidably matched with the slider 13 is provided on the surface of the rotating shaft 10.
[0027] Furthermore, in order to support the reaction kettle body 1, support legs (prior art, not shown in the figure) are provided at the bottom end of the reaction kettle body 1.
[0028] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "longitudinal", "transverse", etc. is the orientation or positional relationship shown based on the traveling direction of the RV. It is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this patent.
[0029] The above are only the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope conceived herein through the above teachings or the technology or knowledge in related fields. And the changes and modifications made by those skilled in the art that do not depart from the spirit and scope of the present invention should all be within the protection scope of the appended claims of the present invention.
Claims
1. A reactor for preventing materials from adhering to the inner wall of the reactor, comprising a reactor body (1) and a top cover (2) arranged on the top of the reactor body (1); characterized in that: A rotating cylinder (3) is vertically penetrated through the top cover (2), a stirring assembly is fixedly installed in the rotating cylinder (3), and a moving rod (4) is slidably installed, a scraper (5) capable of contacting the inner wall of the reactor body (1) is arranged at the bottom end of the moving rod (4), and a motor (6) for driving the stirring assembly to rotate is arranged above the top cover (2); an annular scraper (7) capable of vertical displacement and contacting the inner wall of the reactor body (1) is also arranged in the reactor body (1); the scraper (5) is located below the annular scraper (7).
2. A reactor for preventing materials from adhering to the inner wall of the reactor according to claim 1, characterized in that: A hydraulic rod (8) is provided on the top cover (2), a connecting rod (9) is provided at the bottom end of the hydraulic rod (8), and the connecting rod (9) is connected to the annular scraper (7).
3. A reactor for preventing materials from adhering to the inner wall of the reactor according to claim 1, characterized in that: The stirring assembly comprises a rotating shaft (10) fixedly arranged in the rotating cylinder (3) and having a top end connected to an output end of the motor (6), and a plurality of stirring blades (11) arranged outside the rotating shaft (10).
4. A reactor for preventing materials from adhering to the inner wall of the reactor according to claim 3, characterized in that: The bottom end of the rotating shaft (10) is provided with a stirring rod (16) which is in contact with the bottom wall of the reactor body (1).
5. The reactor for preventing materials from adhering to the inner wall of the reactor according to claim 3, characterized in that: The moving rod (4) located above the top cover (2) and the rotating shaft (10) are fixed via an 8-shaped pipe sleeve (12).
6. A reactor for preventing materials from adhering to the inner wall of the reactor according to claim 3, characterized in that: A sliding block (13) is provided on the outer wall of the moving rod (4) below the top cover (2), and a vertical sliding groove (14) that is slidably matched with the sliding block (13) is provided on the surface of the rotating shaft (10).
7. A reactor for preventing materials from adhering to the inner wall of the reactor according to claim 1, characterized in that: The top cover (2) is provided with a frame (15) for accommodating the motor (6).
8. The reactor for preventing materials from adhering to the inner wall of the reactor according to claim 1, characterized in that: The bottom end of the reactor body (1) is provided with supporting legs.