Polymerizing kettle for producing silane oligomer

Abstract

The utility model discloses a polymerization kettle for producing silane oligomer, and belongs to the technical field of chemical production equipment. A polymerization kettle for silane oligomer production comprises a kettle body and a stirring assembly and is characterized in that materials are stirred in the kettle body through the stirring assembly, a discharging port is formed in the lower end of the kettle body, a discharging pipeline is connected to the discharging port, a heat preservation sleeve is arranged outside the kettle body, and a conveying shaft is arranged in the discharging pipeline. Due to the design that the heat preservation sleeve is matched with the S-shaped flow guide plate, the flowing path of heat conduction oil in the heat preservation sleeve is longer, and heat transfer is more uniform; the combined use of the anchor type stirring paddle and the turbine stirring paddle realizes the simultaneous stirring of materials on the inner wall and in the central area of the kettle body, and the combined design of the spiral scraping blade and the inclined discharge pipeline facilitates cleaning and reduces the risk of cross contamination.

Description

Technical Field

[0001] This utility model relates to the field of chemical production equipment technology, and more specifically, to a polymerization reactor for the production of silane oligomers. Background Technology

[0002] Silane oligomers are important intermediates in the preparation of organosilicon materials. Traditional polymerization reactors have the following problems: large viscosity changes during the reaction, low stirring efficiency, and easy to cause local overheating or uneven reaction; high viscosity materials are difficult to completely discharge in the later stage of the reaction, resulting in waste of raw materials. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a polymerization reactor for the production of silane oligomers to solve the above-mentioned deficiencies.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] This utility model discloses a polymerization reactor for producing silane oligomers, comprising a reactor body and a stirring assembly. The reactor body is characterized by the stirring assembly achieving material stirring within the reactor body. A discharge port is located at the lower end of the reactor body, connected to a discharge pipe. An insulation sleeve is provided outside the reactor body. A conveying shaft is installed inside the discharge pipe, with one end of the conveying shaft movably connected to the inner wall of the discharge pipe via a bracket. Spiral scraper blades are connected to the outer wall of the conveying shaft.

[0006] Preferably, a guide plate is provided between the insulation jacket and the vessel body, and circulating heat transfer oil flows inside the insulation jacket. The guide plate forms an "S"-shaped flow channel, which improves the uniformity of heat distribution inside the vessel body through the circulating heat transfer oil.

[0007] Preferably, the stirring assembly includes a drive motor, a stirring shaft, an anchor-type stirring paddle, and a turbine-type stirring paddle. The drive motor is installed on the top of the vessel body, and the output end of the drive motor is connected to the upper end of the stirring shaft via magnetic transmission. The lower end of the stirring shaft is connected to the anchor-type stirring paddle, which is close to the inner wall of the vessel body. The turbine-type stirring paddle is connected to the middle position of the stirring shaft. When the drive motor is working, it drives the stirring shaft to rotate. The stirring shaft controls the anchor-type stirring paddle and the turbine-type stirring paddle to rotate simultaneously, thereby stirring the materials at different positions in the vessel body.

[0008] Preferably, a first actuating lever is provided on the stirring shaft near the discharge port.

[0009] Preferably, a second actuating rod is fixedly connected to one end of the conveying shaft at the discharge port. The first actuating rod and the second actuating rod are evenly distributed in a ring, and the first actuating rod and the second actuating rod are intersected. The first actuating rod rotates with the stirring shaft, which can both stir the material and drive the second actuating rod to rotate.

[0010] Preferably, the edge of the spiral scraper blades contacts the inner wall of the discharge pipe, and the discharge pipe is inclined with an inclination angle ≥60°.

[0011] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0012] This invention relates to a polymerization reactor for the production of silane oligomers. The design of the insulation jacket combined with an "S"-shaped guide plate allows for a longer flow path of the heat transfer oil within the insulation jacket, resulting in more uniform heat transfer and improved temperature stability within the reactor body. This is beneficial for the uniform polymerization reaction of silane oligomers. The combination of an anchor-type agitator and a turbine agitator enables simultaneous stirring of materials on the inner wall and in the central area of ​​the reactor, preventing material adhesion to the wall and promoting thorough mixing, thus improving reaction efficiency and product quality. An innovative linkage structure between the first and second agitator levers allows for forward and reverse rotation of the agitator shaft to control the discharge direction, eliminating the need for an additional power unit, simplifying the structure, and improving the automation and safety of the equipment. The combined design of the spiral scraper blades and the inclined discharge pipe not only increases the discharge speed but also effectively reduces material residue in the pipe, facilitating cleaning and reducing the risk of cross-contamination. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the polymerization reactor for producing silane oligomers according to this utility model;

[0014] Figure 2 This is an enlarged view of point A in this utility model;

[0015] Figure 3 This is a structural diagram showing the connection between the first actuating lever and the discharge pipe of this utility model;

[0016] Figure 4 This is an exploded view of the discharge pipe of this utility model.

[0017] In the figure: 1. Reactor body; 11. Insulation sleeve; 12. Baffle plate; 2. Stirring assembly; 21. Drive motor; 22. Stirring shaft; 221. First actuating lever; 23. Anchor-type stirring paddle; 24. Turbine stirring paddle; 3. Discharge pipe; 31. Conveying shaft; 311. Support; 312. Second actuating lever; 32. Spiral scraper blade. Detailed Implementation

[0018] 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.

[0019] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0020] Combination Figures 1-4 This utility model discloses a polymerization reactor for producing silane oligomers, comprising a reactor body 1 and a stirring assembly 2. The stirring assembly 2 is used to stir the materials inside the reactor body 1. A discharge port is provided at the lower end of the reactor body 1, and a discharge pipe 3 is connected to the discharge port. An insulation sleeve 11 is provided on the outside of the reactor body 1. A guide plate 12 is provided between the insulation sleeve 11 and the reactor body 1. Circulating heat transfer oil flows inside the insulation sleeve 11. The guide plate 12 forms an "S" shaped flow channel, which improves the uniformity of heat distribution inside the reactor body 1 through the circulation of heat transfer oil.

[0021] Specifically, the stirring assembly 2 includes a drive motor 21, a stirring shaft 22, an anchor stirring paddle 23, and a turbine stirring paddle 24. The drive motor 21 is installed on the top of the vessel body 1. The output end of the drive motor 21 is connected to the upper end of the stirring shaft 22 via magnetic transmission. The lower end of the stirring shaft 22 is connected to the anchor stirring paddle 23, which is close to the inner wall of the vessel body 1. The turbine stirring paddle 24 is connected to the middle position of the stirring shaft 22. When the drive motor 21 is working, it drives the stirring shaft 22 to rotate. The stirring shaft 22 controls the anchor stirring paddle 23 and the turbine stirring paddle 24 to rotate simultaneously, respectively stirring the materials at different positions on the vessel body 1.

[0022] In this embodiment, a conveying shaft 31 is provided inside the discharge pipe 3. One end of the conveying shaft 31 is movably connected to the inner wall of the discharge pipe 3 through a bracket 311. A spiral scraper blade 32 is connected to the outer wall of the conveying shaft 31. The edge of the spiral scraper blade 32 contacts the inner wall of the discharge pipe 3. The discharge pipe 3 is inclined with an inclination angle ≥60°. A second actuating rod 312 is fixedly connected to one end of the conveying shaft 31 at the discharge port.

[0023] More specifically, a first actuating rod 221 is provided near the discharge port on the stirring shaft 22. The first actuating rod 221 and the second actuating rod 312 are evenly distributed in a ring, and the first actuating rod 221 and the second actuating rod 312 are intersected. The first actuating rod 221 rotates with the stirring shaft 22, which can both stir the material and drive the second actuating rod 312 to rotate. When the stirring shaft 22 rotates in the forward direction, the spiral scraper blades 32 push the material towards the discharge port through the transmission of the first actuating rod 221 and the second actuating rod 312, preventing the material from being discharged from the discharge pipe 3. Conversely, when the stirring shaft 22 rotates in the reverse direction, the first actuating rod 221 and the second actuating rod 312 drive the spiral scraper blades 32 to discharge the material to the lower end of the discharge pipe 3.

[0024] Working process: The drive motor 21 drives the stirring shaft 22 to rotate forward through magnetic transmission, so that the anchor stirring paddle 23 and the turbine stirring paddle 24 work simultaneously. The anchor stirring paddle 23 rotates close to the inner wall of the vessel body 1 to prevent materials from sticking to the wall and improve heat transfer efficiency. The turbine stirring paddle 24 is located in the middle of the vessel body to enhance axial and radial mixing and make the reaction system more uniform. The circulating heat transfer oil flows along the "S"-shaped flow channel in the heat insulation jacket 11 to improve heat exchange efficiency and make the temperature distribution in the vessel more uniform, avoiding local overheating or uneven temperature. At this time, when the stirring shaft 22 rotates forward, the first actuating rod 221 drives the second actuating rod 312 to rotate, so that the spiral scraper blades 32 push the material into the vessel to prevent the material from being discharged prematurely. During discharge, the stirring shaft 22 rotates in the opposite direction, and the first actuating rod 221 and the second actuating rod 312 cooperate to make the spiral scraper blades 32 push the material to the lower end of the discharge pipe 3 to achieve efficient discharge and reduce residue.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A polymerization reactor for producing silane oligomers, comprising a reactor body (1) and a stirring assembly (2), characterized in that, The material is stirred by the stirring assembly (2) inside the vessel body (1). The lower end of the vessel body (1) is provided with a discharge port, and a discharge pipe (3) is connected to the discharge port. The vessel body (1) is provided with a heat insulation sleeve (11). A conveying shaft (31) is provided inside the discharge pipe (3). One end of the conveying shaft (31) is movably connected to the inner wall of the discharge pipe (3) through a bracket (311). A spiral scraper blade (32) is connected to the outer wall of the conveying shaft (31).

2. The polymerization reactor for producing silane oligomers according to claim 1, characterized in that, A guide plate (12) is provided between the insulation sleeve (11) and the vessel body (1), and circulating heat transfer oil flows inside the insulation sleeve (11).

3. The polymerization reactor for producing silane oligomers according to claim 1, characterized in that, The stirring assembly (2) includes a drive motor (21), a stirring shaft (22), an anchor stirring paddle (23), and a turbine stirring paddle (24). The output end of the drive motor (21) is connected to the upper end of the stirring shaft (22) via magnetic transmission. The lower end of the stirring shaft (22) is connected to the anchor stirring paddle (23), and the turbine stirring paddle (24) is connected to the middle position of the stirring shaft (22).

4. The polymerization reactor for producing silane oligomers according to claim 3, characterized in that, The stirring shaft (22) is provided with a first actuating rod (221) near the discharge port.

5. The polymerization reactor for producing silane oligomers according to claim 4, characterized in that, The material conveying shaft (31) is fixedly connected to a second actuating rod (312) at one end of the discharge port. The first actuating rod (221) and the second actuating rod (312) are distributed in a ring at equal distances, and the first actuating rod (221) and the second actuating rod (312) are distributed in a cross pattern.

6. The polymerization reactor for producing silane oligomers according to claim 1, characterized in that, The edge of the spiral scraper blade (32) contacts the inner wall of the discharge pipe (3), and the discharge pipe (3) is inclined with an inclination angle ≥60°.

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