Glass-lined oxidation reaction kettle

By using a central rotating gas pipe and a bottom inclined stirring blade in a glass-lined reactor, the problems of poor stirring effect and swirling flow were solved, achieving efficient mixing and oxidation reactions.

CN224142255UActive Publication Date: 2026-04-21LIN YI HONG YE HUA GONG SHE BEI YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIN YI HONG YE HUA GONG SHE BEI YOU XIAN GONG SI
Filing Date
2025-07-17
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing glass-lined reactors suffer from poor stirring effect, severe swirling phenomenon, low mixing efficiency, and high maintenance costs during the stirring process.

Method used

The system employs a central rotating air tube to install fixed blades and bottom inclined stirring blades, along with stirring blades rotating in the opposite direction. By blowing in gas to cut air bubbles and combining this with the turbulence effect of the blades, the mixing efficiency is improved.

Benefits of technology

It effectively improves the upward and downward turbulence of the liquid, increases the stirring area, avoids the generation of vortex, and significantly improves the efficiency of mixing and oxidation reactions.

✦ Generated by Eureka AI based on patent content.

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Abstract

A jacket is sleeved on the outer side of a tank body, a water inlet and a gas outlet are fixedly communicated on the side wall of the jacket, a water outlet is fixedly communicated at the bottom of the jacket, a discharge port is fixedly communicated at the bottom of the tank body, a thermodetector II is mounted on the tank body on one side of the discharge port, and a plurality of flange connectors are arranged at the top of the tank body. Wherein one group of flange interfaces is provided with a thermodetector I, the other group of flange interfaces is provided with a heat exchanger, the other group of flange interfaces are provided with sight holes, a support frame is arranged on a central flange plate at the top of the tank body, a speed reducer is arranged above the support frame, and the input end of the speed reducer is fixedly connected with the output end of a motor. According to the utility model, the fixed blade is mounted on the central rotating gas pipe and matched with the stirring blade II obliquely mounted at the bottom, so that the vertical turbulent flow of liquid can be enhanced, the mixing efficiency is improved, and meanwhile, the stirring blade I with opposite rotating directions is arranged outside the rotating gas pipe, so that the stirring and mixing effects can be further improved while rotational flow is avoided.
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Description

Technical Field

[0001] This utility model belongs to the technical field of glass-lined reactors, and specifically relates to a glass-lined oxidation reactor. Background Technology

[0002] Glass-lined reactors are double-jacketed reactors used for high-temperature and high-pressure material production. Existing glass-lined oxidation reactors have the following technical problems during use: 1) Due to the limited installation diameter, the stirring blades are relatively simple, resulting in poor mixing and stirring of materials in the reactor. It requires a long stirring time to achieve the required effect, which is inefficient; 2) Existing reactors have baffles fixedly installed on the inner wall to cooperate with the stirring blades to achieve the purpose of mixing and turbulence. However, the welding points will damage the smoothness of the glaze on the inner wall of the tank. During the stirring process, the contact points are easily damaged by repeated impacts from the materials, causing them to be unable to function properly and resulting in high maintenance costs.

[0003] A search revealed that prior art CN220737561U discloses a glass-lined reactor. The glass-lined tank body and lid are locked together by clips. A drive mechanism is mounted on the upper end of the glass-lined lid. The upper end of a stirring shaft passes through the upper end of the glass-lined lid and is connected to the drive mechanism. An impeller-type stirrer is mounted on the lower end of the stirring shaft. The glass-lined tank body is provided with a discharge port and a jacket, while the glass-lined lid is provided with a feed port, a thermometer sleeve, and a manhole. It also includes a baffle cage, which comprises a limiting ring and baffle plates. The inner end of the limiting ring... The array is equipped with multiple baffles, and the outer end of the limiting ring is placed between the glass-lined tank body and the glass-lined tank lid and secured with clips. The above solution can quickly and evenly mix the material, and its rotational stirring can facilitate flow breaking and mixing. However, the above solution still has the following problems in use: the installation of the outer end of the limiting ring between the glass-lined tank body and the glass-lined tank lid will indirectly affect the overall sealing and stability of the tank body. In addition, the single impeller-type agitator is very prone to generating swirling flow around the center during the stirring process, resulting in poor stirring effect.

[0004] For example, existing technology CN213995878U discloses a glass-lined reactor stirrer. The reactor surface is fixed with a top cover by bolts. The top cover surface has a protrusion, and a motor is fixed to the protrusion by bolts. A stirring shaft is fixed to the end face of the drive shaft at the lower end of the motor. A circular plate is installed on the outer surface of the stirring shaft. A stirring blade is fixed around the outer surface of the circular plate. The outer end of the stirring blade has a toothed groove. A triangular strip is fixed to the inner end of the stirring blade. A support ring is fixed to the inner surface of the lower end of the stirring blade. The above technical solution adopts a multi-toothed stirring structure, which facilitates flow breaking and stirring during rotation. The stirring is uniform. The circular plate is fixed by locking with nuts, which facilitates the assembly and use of the stirring mechanism. However, the above technical solution is prone to swirling during the stirring process, which affects the stirring and mixing efficiency. Moreover, the effect of disturbing the liquid's vertical flow is not obvious, and it cannot mix quickly. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a glass-lined oxidation reactor. By installing fixed blades on the central rotating gas pipe and combining them with the bottom inclined stirring blade II, the vertical turbulence of the liquid can be enhanced, and the mixing efficiency can be improved. At the same time, stirring blade I with the opposite rotation direction is set outside the rotating gas pipe, which avoids the generation of swirling flow and further enhances the stirring and mixing effect.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A glass-lined oxidation reactor includes a tank body, a thermometer I, a heat exchanger, a sight glass, a discharge port, a thermometer II, and an air blowing pipe. The tank body is fitted with a jacket, with an inlet and an outlet fixedly connected to the side wall of the jacket. An outlet is fixedly connected to the bottom of the jacket. The discharge port is fixedly connected to the bottom of the tank body. A thermometer II is installed on one side of the tank body near the discharge port. Several flange interfaces are provided on the top of the tank body. One set of flange interfaces is fitted with the thermometer I, another set with the heat exchanger, and another set with the sight glass. A support frame is provided on the central flange at the top of the tank body. A speed reducer is located above the support frame. The input end of the speed reducer is fixedly connected to the output end of a motor, and the output end of the speed reducer is connected to one end of a rotary interface. An air inlet is located on one side of the rotary interface, and a rotary air pipe is fixedly connected to the other end. Several fixed blades are provided on the rotary air pipe, and several air blowing pipes are fixedly connected to the bottom of the rotary air pipe. Several air blowing pipes have several air holes. A fixed grid is installed on one side of the air blowing pipe near the air holes, and stirring blades II are fixedly installed on one side of the fixed grid.

[0008] A fixed tube is fitted around the outside of the rotating air pipe. The fixed tube is fixedly connected to the bottom of the support frame. A limit buckle is provided at the bottom of the fixed tube. The driven gear at the bottom of the limit buckle meshes with the driving gear on the rotating air pipe. A gear ring cavity is movably installed below the limit buckle. The rotating air pipe passes through the gear ring cavity. A sealing ring is provided at the movable connection between the rotating air pipe and the gear ring cavity. The gear ring is set on the side wall of the gear ring cavity. The limit buckle is fastened to the bottom of the gear ring cavity. A sealing ring is provided at the connection between the two to prevent the material in the tank from entering the gear ring cavity during rotation and affecting the gear transmission. The gear ring meshes with the driven gear. A connecting rod is provided below the gear ring cavity. Several stirring blades I are movably installed on the connecting rod. One end of the stirring blades I is provided with a turbulence blade.

[0009] A stop bar I is provided on one side of the connecting rod of the stirring blade I, and a stop bar II is provided on the connecting rods on both sides of the rotating shaft of the stirring blade I. The stop bar I and the stop bar II can prevent the stirring blade I from swinging excessively, so that the two adjacent sets of stirring blades I and the turbulence blades can be staggered and spread out, further increasing the stirring area and improving the stirring and mixing efficiency.

[0010] Preferably, the jacket is provided with several mounting plates, which can be used for hoisting equipment and for installation and fixation.

[0011] The advantages of this utility model compared with the prior art are as follows:

[0012] 1) The rotating air pipe drives the fixed blades and the blowing pipe to rotate synchronously. At this time, the blown bubbles will be blocked by the stirring blade II and cut by the fixed grid, thereby achieving the purpose of cutting and breaking the bubbles, increasing the contact area between the bubbles and the solution. In addition, the fixed blades are spiral in shape, which can play a role in turbulence of the solution during the stirring process. Under the turbulence and stirring of the fixed blades and stirring blade II, the mixing and oxidation efficiency of the solution is effectively improved.

[0013] 2) During the initial installation, the stirring blade I can be manually rotated to allow it to smoothly enter through the opening at the top of the tank. Once inside the tank, the stirring blade I will automatically unfold due to the greater gravity of the stirring blade I compared to the turbulence blade, thus exposing the stirring blade I and the turbulence blade, thereby increasing the mixing area. At the same time, the rotating air pipe drives the gear ring to rotate in the opposite direction through gear transmission, thereby controlling the rotation direction of the stirring blade I and the fixed blade to be opposite, which can effectively improve the mixing effect and greatly improve the mixing efficiency.

[0014] 3) Both the stirring blade I and the turbulence blade have serrated sides, which can break up solid materials during the stirring process and cut and break up air bubbles, thereby further improving the effect of oxidation stirring. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the structure of a glass-lined oxidation reactor according to this utility model;

[0016] Appendix Figure 2 This is a schematic diagram of the internal structure of a glass-lined oxidation reactor according to this utility model;

[0017] Appendix Figure 3 This is a schematic diagram of a fixed tube structure;

[0018] Appendix Figure 4 This is a schematic diagram of the connecting rod structure;

[0019] Appendix Figure 5 It is attached Figure 4 Enlarged view of a portion of point A in the middle;

[0020] In the diagram: 10. Tank body; 11. Flange interface; 12. Thermometer I; 13. Heat exchanger; 14. Sight hole; 15. Support frame; 16. Reducer; 17. Motor; 18. Rotary interface; 19. Air inlet; 20. Rotary air pipe; 21. Drive gear; 22. Fixed pipe; 23. Gear ring; 24. Connecting rod; 25. Stirring blade I; 26. Jacket; 101. Discharge port; 102. Thermometer II; 201. Fixed blade; 202. Air blowing pipe; 203. Fixed grid; 204. Stirring blade II; 221. Driven gear; 222. Limit buckle; 241. Stop bar I; 242. Stop bar II; 251. Turbine blade; 261. Water inlet; 262. Air vent; 263. Water outlet; 264. Mounting plate. Detailed Implementation

[0021] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-5 The technical solution of this utility model will be further described in detail below.

[0022] A glass-lined oxidation reactor includes a tank body 10, a flange interface 11, a thermometer I 12, a heat exchanger 13, a sight glass 14, a support frame 15, a reducer 16, a motor 17, a rotary interface 18, an air inlet 19, a rotary air pipe 20, a jacket 26, a discharge port 101, a thermometer II 102, fixed blades 201, an air blowing pipe 202, a fixed grid 203, stirring blades II 204, a water inlet 261, an air vent 262, and a water outlet 263. The tank body 10 is fitted with a jacket 26 on its outer side. The side wall of the jacket 26 is fixedly connected to the water inlet 261 and the air vent 262, and the bottom of the jacket 26 is fixedly connected to the water outlet 263. The bottom of the tank body 10 is fixedly connected to a discharge port 101. A thermometer II 102 is installed on one side of the tank body 10. The top of the tank body 10 is provided with several flange interfaces 11. One set of flange interfaces 11 is equipped with a thermometer I 12, another set of flange interfaces 11 is equipped with a heat exchanger 13, and another set of flange interfaces 11 is provided with a sight glass 14. A support frame 15 is provided on the central flange at the top of the tank body 10. A reducer 16 is provided above the support frame 15. The input end of the reducer 16 is fixedly connected to the output end of a motor 17, and the output end of the reducer 16 is connected to one end of a rotary interface 18. One side of the rotary interface 18 is provided with an air inlet 19, and the other end is fixedly connected to a rotary air pipe 20. The rotating air pipe 20 is equipped with several fixed blades 201, and several blowing pipes 202 are fixedly connected to the bottom of the rotating air pipe 20. Several air holes are provided on the blowing pipes 202, and a fixed grid 203 is installed on one side of each blowing pipe 202. A stirring blade II 204 is fixedly installed on one side of the fixed grid 203. The material to be processed can be poured into the tank body 10 by opening the top flange interface 11. After closing the flange interface 11, multiple thermometers can monitor the temperature inside the tank body 10 in real time. The temperature inside the tank body 10 can also be adjusted at any time by controlling the heat exchanger 13. A heat source can also be injected into the jacket 26 at the water inlet 261 to achieve temperature control. After the speed of the motor 17 is adjusted by the reducer 16, it drives the rotating air pipe 20 to rotate through the rotating interface 18. The air inlet 19 on the rotating interface 18 is connected to the factory air source, blowing the gas into the rotating air pipe 20 and blowing it out through the bottom air pipe 202. During the blowing process, the rotating air pipe 20 drives the fixed blade 201 to rotate synchronously with the air pipe 202. At this time, the blown bubbles will be blocked by the stirring blade II 204 and cut by the fixed grid 203, thereby achieving the purpose of cutting and breaking the bubbles, increasing the contact area between the bubbles and the solution. Under the turbulence and stirring of the fixed blade 201 and the stirring blade II 204, the mixing reaction efficiency of the solution is effectively improved.

[0023] A fixed tube 22 is fitted around the outside of the rotating air pipe 20. The fixed tube 22 is fixedly connected to the bottom of the support frame 15. A limit buckle 222 is provided at the bottom of the fixed tube 22. The driven gear 221 at the bottom of the limit buckle 222 meshes with the driving gear 21 on the rotating air pipe 20 and is movably installed. A gear ring cavity is movably installed at the lower part of the limit buckle 222. The rotating air pipe 20 passes through the gear ring cavity. A sealing ring is provided at the movable connection between the rotating air pipe 20 and the gear ring cavity. The gear ring 23 is set on the side wall of the gear ring cavity. The limit buckle is fastened to the bottom of the gear ring cavity. A sealing ring is provided at the connection between the two to prevent the material in the tank from entering the gear ring cavity during rotation and affecting the gear transmission. The gear ring 23 meshes with the driven gear 221. A connecting rod 24 is provided below the gear ring cavity. Several stirring blades I 25 are movably installed on the connecting rod 24. One end of the stirring blade I25 is equipped with a baffle 251. During the initial installation, the stirring blade I25 can be manually rotated to allow it to smoothly enter the tank body 10 through the top opening. After entering the tank body 10, the stirring blade I25 will automatically rotate and unfold due to the greater gravity at the stirring blade I25 than the baffle 251, thus exposing the stirring blade I25 and the baffle 251, thereby increasing the stirring area. At the same time, when the rotating air pipe 20 rotates, it drives the driven gear through the set active gear, which further drives the gear ring 23 to reverse, thereby controlling the rotation direction of the stirring blade I25 and the fixed blade 201 to be opposite, which can effectively improve the mixing effect and greatly improve the mixing efficiency.

[0024] A stop bar I241 is provided on one side of the connecting rod 24 of the stirring blade I25, and a stop bar II242 is provided on the connecting rods 24 on both sides of the rotating shaft of the stirring blade I25. The stop bar I241 and the stop bar II242 can prevent the stirring blade I25 from swinging excessively, so that the two adjacent sets of stirring blades I25 and the turbulence blades 251 can be staggered, further increasing the stirring area and improving the stirring and mixing efficiency.

[0025] The sleeve 26 is provided with several mounting plates 264, which can be used for hoisting equipment and for installation and fixation.

[0026] A glass-lined oxidation reactor operates as follows: The material to be processed can be poured into the tank body 10 by opening the top flange interface 11. After closing the flange interface 11, multiple thermometers can monitor the temperature inside the tank body 10 in real time. The temperature inside the tank body 10 can also be adjusted at any time by controlling the heat exchanger 13. A heat source can also be injected into the jacket 26 at the water inlet 261 to achieve temperature control. Simultaneously, the motor 17, after speed adjustment via the reducer 16, drives the rotating air pipe 20 to rotate through the rotating interface 18. The air inlet 19 on the rotating interface 18 is connected to the factory air source, blowing gas into the rotating air pipe 20 and out through the bottom blowing pipe 202. During the blowing process… In the process, the rotating air pipe 20 drives the fixed blade 201 and the blowing pipe 202 to rotate synchronously. At this time, the blown bubbles are blocked by the stirring blade II 204 and cut by the fixed grid 203, thereby achieving the purpose of cutting and breaking the bubbles, increasing the contact area between the bubbles and the solution. Under the turbulence and stirring of the fixed blade 201 and the stirring blade II 204, the mixing reaction efficiency of the solution is effectively improved. Furthermore, when the rotating air pipe 20 rotates, it drives the driven gear 221 through the set active gear 21, which further drives the gear ring 23 to reverse, thereby controlling the stirring blade I 25 and the fixed blade 201 to rotate in opposite directions, which can effectively improve the mixing effect and greatly improve the mixing efficiency.

[0027] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A glass-lined oxidation reactor, comprising a tank body, a thermometer I, a heat exchanger, a sight glass, a discharge port, a thermometer II, and an air blowing pipe; the tank body is fitted with a jacket, an inlet and an outlet are fixedly connected to the side wall of the jacket, an outlet is fixedly connected to the bottom of the jacket, a discharge port is fixedly connected to the bottom of the tank body, a thermometer II is installed on one side of the tank body near the discharge port, and a plurality of flange interfaces are provided on the top of the tank body, wherein a set of flange interfaces is fitted with a thermometer I, a set of flange interfaces is fitted with a heat exchanger, and a set of flange interfaces is provided with a sight glass; characterized in that... A support frame is provided on the center flange at the top of the tank. A speed reducer is provided above the support frame. The input end of the speed reducer is fixedly connected to the output end of the motor. The output end of the speed reducer is connected to one end of the rotary interface. An air inlet is provided on one side of the rotary interface. The other end is fixedly connected to the rotary air pipe. Several fixed blades are provided on the rotary air pipe. Several blowing pipes are fixedly connected to the bottom of the rotary air pipe. Several air holes are provided on the blowing pipes. A fixed grid is installed on the blowing pipe on one side of the air hole. A stirring blade II is fixedly installed on one side of the fixed grid. A fixed tube is fitted around the outside of the rotating air tube. The fixed tube is fixedly connected to the bottom of the support frame. A limit buckle is provided at the bottom of the fixed tube. The driven gear at the bottom of the limit buckle meshes with the driving gear on the rotating air tube and is movably installed. A gear ring cavity is movably installed at the lower part of the limit buckle. The rotating air tube passes through the gear ring cavity. A sealing ring is provided at the movable connection between the rotating air tube and the gear ring cavity. The gear ring is set on the side wall of the gear ring cavity. The limit buckle is fastened to the bottom of the gear ring cavity. A sealing ring is provided at the connection between the two. The gear ring meshes with the driven gear. A connecting rod is provided below the gear ring cavity. Several stirring blades I are movably installed on the connecting rod. One end of the stirring blades I is provided with a turbulence blade.

2. A glass-lined oxidation reaction vessel according to claim 1, characterized in that A stop bar I is provided on one side of the connecting rod of the stirring blade I, and a stop bar II is provided on the connecting rods on both sides of the rotating shaft of the stirring blade I.

3. A glass-lined oxidation reaction vessel according to claim 1, characterized in that The jacket is provided with several mounting plates.

Citation Information

Patent Citations

  • Stirrer of glass-lined reaction kettle

    CN213995878U

  • Glass-lined reaction kettle

    CN220737561U