Efficient stirring reaction kettle

Abstract

The utility model relates to an efficient stirring reaction kettle and aims to solve the problems of low stirring efficiency, high energy consumption and serious material residue in the prior art. The reaction kettle comprises a kettle body, a top cover, an air inlet pipe, a stirring shaft, a gear disc and a mounting plate, a jacket is sleeved outside the kettle body to form a sealed cavity, and a discharge hole and a condensed water outlet are formed in the bottom of the kettle body; a thermometer, a pressure gauge and the like are integrated on the top cover; the stirring shaft is connected with a motor and a stirring paddle, and a U-shaped scraper is arranged on the paddle; the gear disc is connected with the stirring shaft, and the mounting plate is provided with a planetary gear and a pinion to drive the L-shaped stirring rod to rotate. Through multi-dimensional and multi-layer stirring and efficient heat transfer design, the stirring efficiency and the heat transfer effect are remarkably improved, the energy consumption is reduced, and operation safety and reaction stability are ensured. The device is suitable for chemical reaction processes requiring efficient stirring and heat transfer.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of reaction kettles, in particular to a high-efficiency stirring reaction kettle. BACKGROUND

[0002] In the chemical, pharmaceutical, food and other industries, the reaction kettle is a key equipment for realizing material mixing, reaction, dispersion, dissolution, crystallization and other process. However, the traditional reaction kettle has problems of low stirring efficiency, high energy consumption and serious material residue, which limits the production efficiency and product quality and increases the production cost and maintenance difficulty. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a high-efficiency energy-saving and easy-to-clean reaction kettle to solve the problems of low stirring efficiency, high energy consumption and serious material residue in the prior art. In order to achieve the above-mentioned purpose, the application provides the following technical scheme: a high-efficiency stirring reaction kettle comprising:

[0004] A kettle body is provided with a jacket, a sealed cavity is formed between the kettle body and the jacket, a discharge port is arranged at the bottom of the kettle body, the discharge port penetrates the jacket, and a condensate outlet is arranged at the bottom of the jacket;

[0005] A top cover is arranged above the kettle body, and a temperature gauge, a pressure gauge, a stirring shaft seal, a manhole and a feeding port are integrated on the top cover;

[0006] An air inlet pipe is arranged on the side wall of the jacket;

[0007] A stirring shaft is arranged in the stirring shaft seal, one end of the stirring shaft is connected with a motor, the other end of the stirring shaft extends into the kettle body, a stirring paddle is connected to the end portion of the stirring shaft, and U-shaped scrapers are connected to both ends of the stirring paddle and are matched with the inner wall of the kettle body;

[0008] A gear disc is connected to the stirring shaft through a spline, and a central gear is arranged on the gear disc;

[0009] A mounting plate is arranged on the stirring shaft, a plurality of planetary gears are arranged on the periphery of the mounting plate and are uniformly arranged in the circumferential direction of the central gear, the planetary gears are double-head gears, one end of each planetary gear is engaged with the central gear, the other end of each planetary gear is engaged with a pinion, an L-shaped stirring rod is connected to the shaft of the pinion, a plurality of arc-shaped blades are arranged on the end portion of the stirring rod, and under the driving of the motor, the stirring shaft drives the stirring paddle and the stirring rod to rotate.

[0010] Preferably, two air inlet pipes are symmetrically arranged on the side wall of the jacket.

[0011] The preferred technical scheme further comprises an observation mirror, which is arranged on the cover plate of the manhole.

[0012] The preferred technical scheme further comprises a heating pipe, which is arranged in the cavity and spirally wound outside the kettle body.

[0013] The preferred technical scheme is that a plurality of gas outlets are uniformly arranged on the periphery of one end of the gas inlet pipe in the cavity.

[0014] The preferred technical scheme further comprises a support, which is arranged outside the jacket.

[0015] The preferred technical scheme is that the U-shaped scraper is close to but not in contact with the inner wall of the kettle body.

[0016] The preferred technical scheme is that the included angle between the arc-shaped blade and the vertical axis of the stirring paddle is 5-15 degrees.

[0017] The preferred technical scheme further comprises a material taking port, which is arranged on the side wall of the kettle body.

[0018] Compared with the prior art, the application has the following beneficial effects:

[0019] The utility model discloses a stirring shaft is provided with U-shaped scraper and L-shaped stirring rod, and combines the planetary gear transmission system, makes stirring paddle and stirring rod realize multi-dimension, multilevel stirring effect under the drive of motor. This design not only enhances the flowability of material in the kettle body, but also significantly improves the uniformity and completeness of stirring, thereby greatly improving the stirring efficiency of the reaction kettle. The jacket outside the kettle body forms a sealed cavity, which facilitates the circulation of cold and hot medium, thereby improving the heat transfer efficiency. The condensate outlet design at the bottom of the jacket enables the condensate to be discharged in time, avoiding the problem of affecting the heat transfer effect due to condensate accumulation. The top cover integrates temperature gauge, pressure gauge, manhole and feeding port, which are convenient for real-time monitoring of the temperature and pressure changes in the reaction kettle, and ensures the safety of operation and the stability of reaction. Efficient stirring and heat transfer design make the reaction process more rapid and uniform, thereby shortening the reaction time and reducing the energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic view of the efficient stirring reaction kettle proposed in the embodiment of the application.

[0021] Figure 2 It is a three-dimensional schematic view of the partial structure of the efficient stirring reaction kettle proposed in the embodiment of the application.

[0022] Figure 3 It is an upper view of the efficient stirring reaction kettle proposed in the embodiment of the application.

[0023] Figure 4 For Figure 3 Figure 2 is a cross-sectional view along A-A of Figure 1;

[0024] Figure 5 Figure 1 is a schematic diagram of the internal structure of a high-efficiency stirring reaction kettle according to an embodiment of the present application; in the figure: 1, kettle body; 2, jacket; 3, cavity; 4, discharge port; 5, condensed water outlet; 6, top cover; 7, temperature gauge; 8, pressure gauge; 9, stirring shaft seal; 10, manhole; 11, feed inlet; 12, gas inlet pipe; 13, stirring shaft; 14, motor; 15, stirring paddle; 16, U-shaped scraper; 17, gear disc; 18, central gear; 19, mounting plate; 20, planetary gear; 21, pinion; 22, L-shaped stirring rod; 23, arc-shaped blade; 24, sight glass; 25, heating pipe; 26, support; 27, material taking port. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0026] It should be noted that, in the description of the present application, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, it should be understood that, for the convenience of description, the sizes of the various components shown in the drawings are not drawn in accordance with the actual proportional relationship, for example: the thickness or width of certain layers can be exaggerated relative to other layers.

[0028] It should be noted that similar reference numerals and letters in the following drawings represent similar items, and therefore, once an item is defined or described in one drawing, it will not need to be further specifically discussed and described in the description of subsequent drawings.

[0029] To solve the technical problems in the background art, as shown in Figures 1-5 The present application provides a technical solution: a high-efficiency stirring reaction kettle, characterized as follows:

[0030] The kettle body 1 is made of alloy steel, stainless steel or enamel and other corrosion-resistant materials to ensure durability in various chemical environments. The side wall of the kettle body 1 is provided with a gas outlet. The jacket 2 is wrapped outside the kettle body 1, and the sealed cavity 3 formed between the two can be used to inject or circulate heating or cooling medium to control the temperature of the material in the kettle. The discharge port 4 at the bottom of the kettle body 1 is designed to penetrate the jacket 2, so as to discharge the material after the reaction is completed, while avoiding leakage of the medium in the jacket 2. The jacket 2 is provided with a condensate outlet 5 at the bottom for discharging condensate to keep the inside of the equipment dry. The top cover 6 is tightly covered on the kettle body 1, and the temperature gauge 7 and pressure gauge 8 are integrated on it to monitor the temperature and pressure in the kettle in real time. The top cover 6 is also provided with a stirring shaft seal 9 for sealing the stirring shaft 13 and the top cover 6 to prevent material leakage. The manhole 10 and the feed inlet 11 are respectively used for personnel to enter the kettle for maintenance and addition of material. The gas inlet pipe 12 is provided on the side wall of the jacket 2 for conveying gas into the jacket 2 to meet the temperature requirement of the specific chemical reaction. The stirring shaft 13 penetrates the stirring shaft seal 9, one end of which is connected to the motor 14, and the other end extends into the kettle body 1 and is connected to the stirring paddle 15. The stirring paddle 15 is connected to the U-shaped scraper 16 at both ends, which is matched with the inner wall of the kettle body 1 to ensure that the accumulated material on the inner wall can be scraped off during stirring to avoid residue. The gear disc 17 is connected to the stirring shaft 13 through the spline, and the center gear 18 is provided on it, and the gear disc 17 rotates with the stirring shaft 13. The mounting plate 19 is sleeved on the stirring shaft 13, and a plurality of planetary gears 20 are uniformly arranged on the periphery of the mounting plate 19. These planetary gears 20 are double-headed, one end of which is engaged with the center gear 18, and the other end is engaged with the pinion 21. The mounting plate 19 is not synchronous with the rotation of the stirring shaft 13, and a bearing seat is provided between them, so that the rotation of the stirring shaft 13 will not drive the mounting plate 19 to rotate. The shaft of the pinion 21 is connected with the L-shaped stirring rod 22, and the end of the L-shaped stirring rod 22 is provided with a plurality of arc blades 23. Under the drive of the motor 14, the stirring shaft 13 drives the stirring paddle 15 and the L-shaped stirring rod 22 to rotate, realizing efficient stirring of the material in the kettle. The rotation of the stirring paddle 15 and the U-shaped scraper 16 ensures uniform mixing of the material, while the rotation of the L-shaped stirring rod 22 and the arc blade 23 further improves the stirring efficiency, realizing sufficient dispersion and dissolution of the material.

[0031] It should be noted that the design of the gas inlet pipe 12 takes into account the symmetry to ensure the uniformity of gas distribution. Specifically, two gas inlet pipes 12 are symmetrically arranged on the two side walls of the jacket 2. This layout helps to form uniform gas flow outside the kettle body 1, thereby improving the temperature change efficiency. The inlet end of the gas inlet pipe 12 can be equipped with an adjusting valve to control the flow and pressure of the gas, ensuring the accuracy and controllability of the gas input. The connection between the gas inlet pipe 12 and the jacket 2 is designed with a sealing structure to prevent gas leakage and ensure the safety of operation.

[0032] Further, to facilitate the operator to observe the state of the material in the reactor during operation, an observation mirror 24 is provided on the cover plate of the manhole 10. The observation mirror 24 is usually made of heat-resistant glass or heat-resistant plastic to ensure safety and durability in high temperature or corrosive environment. The position and angle of the observation mirror 24 are designed considering the line of sight of the operator, ensuring that the operator can clearly observe the situation inside the reactor when the cover plate of the manhole 10 is closed. The mounting structure of the observation mirror 24 is designed to be detachable, so as to facilitate cleaning and replacement. When cleaning or maintenance of the reactor is needed, the observation mirror 24 can be easily removed to better access the inside of the reactor. The outer ring of the observation mirror 24 can be equipped with a sealing gasket to ensure the sealing between the observation mirror 24 and the cover plate when the cover plate of the manhole 10 is closed, preventing material leakage or gas escape.

[0033] It should be noted that a heating pipe 25 is provided in the sealing cavity 3 between the reactor body 1 and the jacket 2. The heating pipe 25 is designed to be spirally wound on the outside of the reactor body 1, which can maximize the heating area and improve the heating efficiency and uniformity. The spiral pitch and winding number of the heating pipe 25 are accurately calculated to ensure uniform heat distribution on the outside of the reactor body 1, avoiding local overheating or insufficient heating.

[0034] It should be noted that the gas inlet pipe 12 is uniformly provided with several gas outlets at one end in the cavity 3. Such design makes the gas evenly distributed from the gas inlet pipe 12 to the inside of the cavity 3, ensuring the efficiency of temperature change of the gas. The material of the gas inlet pipe 12 should be compatible with the environment in the cavity 3, usually stainless steel or other corrosion-resistant materials to ensure stability and corrosion resistance in high temperature or corrosive gas environment.

[0035] It is worth mentioning that in order to ensure the stability of the reactor and facilitate installation, a support 26 is provided on the outer wall of the jacket 2. The design of the support 26 takes into account the load capacity and structural stability, usually using steel structure or cast iron structure to ensure firmness and durability under various working conditions. The connection between the support 26 and the jacket 2 can be welding, bolt connection or other reliable fixing methods to ensure stability in long-term operation.

[0036] It is worth noting that the design of the U-shaped scraper 16 aims to improve the stirring efficiency and reduce the residue of the material on the inner wall of the kettle body 1. For this purpose, the U-shaped scraper 16 maintains a close but non-contact state with the inner wall of the kettle body 1. The U-shaped scraper 16 can effectively scrape off the material attached to the wall by driving the fluid inside the kettle body 1 without directly contacting the inner wall of the kettle body 1, and if the residue is too large, it will fall off under the action of the U-shaped scraper 16. The gap between the U-shaped scraper 16 and the inner wall of the kettle body 1 can be adjusted according to the characteristics of the material and the stirring requirements to achieve the best stirring and cleaning effect. The material selection of the U-shaped scraper 16 takes into account the wear resistance and chemical stability to adapt to different chemical media and temperature conditions, while reducing the potential damage to the inner wall of the kettle body 1.

[0037] It should be noted that the arc-shaped blade 23 provided at the end of the L-shaped stirring rod 22 is a key component in the stirring system, and the included angle between the arc-shaped blade 23 and the vertical axis of the stirring paddle 15 is precisely designed to be 5-15 degrees. This included angle design enables the arc-shaped blade 23 to generate effective tangential force during stirring, thereby achieving strong stirring and mixing of the material in the kettle and enhancing mixing uniformity. Precise control of the included angle helps to optimize the flow pattern generated by the stirring paddle 15, ensuring uniform distribution of the material throughout the kettle body 1 and avoiding uneven reaction. By adjusting the included angle between the arc-shaped blade 23 and the axis of the stirring paddle 15, different stirring requirements such as materials with different viscosities or specific chemical reaction processes can be adapted.

[0038] It should be noted that a material taking port 27 is provided on the side wall of the kettle body 1. The location of the material taking port 27 takes into account the convenience and safety of operation, and is generally provided at the middle part of the side wall. The design of the material taking port 27 includes a sealing cover or valve to ensure that the kettle body 1 remains sealed when not in use, preventing material leakage or external contamination. The material of the material taking port 27 is matched with the kettle body 1, and is usually made of stainless steel or other corrosion-resistant materials to adapt to different chemical media and temperature conditions. The sealing cover or valve of the material taking port 27 is designed to be easy to operate, and can be quickly opened and closed to meet the needs of continuous production or intermittent operation.

[0039] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high efficiency stirred reactor characterized in that, It includes: The kettle body (1) is provided with a jacket (2), a sealed cavity (3) is formed between the kettle body (1) and the jacket (2), the kettle body (1) is provided with a discharge port (4) at the bottom, the discharge port (4) penetrates the jacket (2), the jacket (2) is provided with a condensate outlet (5) at the bottom; The top cover (6) is covered on the kettle body (1), and a temperature gauge (7), a pressure gauge (8), a stirring shaft seal (9), a manhole (10), a feed inlet (11) are integrated thereon; The air inlet pipe (12) is arranged on the side wall of the jacket (2); The stirring shaft (13) is arranged in the stirring shaft seal (9), one end of the stirring shaft (13) is connected with the motor (14), the other end of the stirring shaft (13) extends into the kettle body (1), the end of the stirring shaft (13) is connected with the stirring paddle (15), and the two ends of the stirring paddle (15) are connected with the U-shaped scraper (16) matched with the inner wall of the kettle body (1); The gear disc (17) is connected to the stirring shaft (13) by spline, and a central gear (18) is arranged on the gear disc (17); The mounting plate (19) is sleeved on the stirring shaft (13), and a plurality of planetary gears (20) are arranged on the periphery of the mounting plate (19) and uniformly arranged along the circumferential direction of the central gear (18), the planetary gears (20) are double-headed gears, one end of the planetary gears (20) is engaged with the central gear (18), the other end of the planetary gears (20) is engaged with the pinion (21), the shaft of the pinion (21) is connected with the L-shaped stirring rod (22), and the end of the stirring rod is provided with a plurality of arc blades (23), under the driving of the motor (14), the stirring shaft (13) drives the stirring paddle (15) and the stirring rod to rotate.

2. The high efficiency stirred reaction vessel of claim 1, wherein, Two air inlet pipes (12) are symmetrically arranged on the side wall of the jacket (2).

3. The high efficiency stirred reaction vessel of claim 2, wherein, It also includes a viewing mirror (24) arranged on the cover plate of the manhole (10).

4. The high efficiency stirred reaction vessel of claim 3, wherein, It also includes a heating pipe (25) arranged in the cavity (3), and the heating pipe (25) is spirally wound outside the kettle body (1).

5. The high efficiency stirred reaction vessel of claim 2, wherein, The air inlet pipe (12) is located in the cavity (3), and a plurality of air outlets are uniformly arranged on the periphery of one end of the air inlet pipe (12).

6. The high efficiency stirred reaction vessel of claim 1, wherein, It also includes a support (26) arranged on the outer side wall of the jacket (2).

7. The high efficiency stirred reaction vessel of claim 1, wherein, The U-shaped scraper (16) is close to the inner wall of the kettle body (1) but not in contact with the inner wall of the kettle body (1).

8. The high efficiency stirred tank reactor according to any one of claims 1 to 7, wherein The included angle between the arc blade (23) and the vertical axis of the stirring paddle (15) is 5-15 degrees.

9. The high efficiency stirred reaction vessel of claim 8, wherein, It also includes a material taking port (27) arranged on the side wall of the kettle body (1).

Images