Temperature-adjustable silicon sol reaction kettle

Abstract

The utility model discloses a kind of temperature-adjustable silicon sol reaction kettle, it is related to production device technical field, including reaction kettle and temperature control component, reaction kettle includes the inner cavity for reaction, temperature control component includes the outer cavity for containing steam, pressure regulating component for adjusting steam intake and multi-pass pipe, pressure regulating component gas outlet end is communicated with multi-pass pipe, multiple gas outlets of multi-pass pipe are all communicated with outer cavity. Steam intake can be accurately adjusted by pressure regulating component, effectively match the temperature requirement of silicon powder hydrolysis method and ethyl silicate hydrolysis method, reduce temperature fluctuation;Through multi-pass pipe and outer cavity different height intercommunication, can let steam be evenly distributed in outer cavity, and set up the guiding groove of multi-pass pipe outlet matching and guide airflow evenly flow, avoid airflow local retention, reduce the temperature difference in kettle to guarantee that reaction system temperature is consistent;Condensate pipe can promptly discharge steam condensate to avoid affecting heat transfer efficiency, and can quickly exhaust when needing rapid cooling, improve operation convenience.

Description

Technical Field

[0001] This utility model belongs to the field of production equipment technology, and specifically relates to an adjustable temperature silica sol reactor. Background Technology

[0002] In the industrial production of silica sol, the temperature control of the reactor is directly related to the uniformity of product particle size and storage stability. The mainstream preparation processes mainly include silica powder hydrolysis and ethyl silicate hydrolysis. Silica powder hydrolysis requires mixing silica powder with an alkaline or acidic catalyst solution, then gradually increasing the temperature to 80-95℃ and maintaining a constant temperature within this range. Ethyl silicate hydrolysis requires first adding the raw material dropwise at 60-70℃, then holding at 70-80℃. Both processes require strict control of reaction temperature fluctuations.

[0003] To ensure a narrow particle size distribution and long shelf life of the silica sol, the reactor must also meet the temperature control requirements for uniform temperature difference within the reactor. Steam, due to its high heat transfer efficiency, has become the mainstream temperature control medium. Therefore, in actual production, it is necessary to control the steam flow rate to control the heating or heat preservation, and to solve the problem that the airflow in the jacket easily forms local stagnation areas, leading to unstable heating rate and uneven temperature distribution within the reactor. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an adjustable temperature silica sol reactor to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An adjustable temperature silica sol reactor includes a reactor and a temperature control component. The reactor includes an inner cavity for reaction, and the temperature control component includes an outer cavity for containing steam, a pressure regulating component for adjusting the steam intake, and a multi-port pipe. The outlet of the pressure regulating component is connected to the multi-port pipe, and multiple outlets of the multi-port pipe are all connected to the outer cavity.

[0007] Preferably, the multiple outlets of the multi-port pipe are distributed along the height direction of the reactor.

[0008] Preferably, a spiral guide groove is provided on the inner wall of the outer cavity, and the air inlet end of the guide groove is connected to the outlet end of the multi-port pipe.

[0009] Preferably, a condensate pipe connected to the outside is installed at the bottom of the outer cavity, and a second valve is installed on the condensate pipe.

[0010] Preferably, the pressure regulating component includes a baffle perpendicular to the airflow direction and a mounting plate. The baffle has a vent hole extending through its thickness, and the mounting plate is equipped with an air baffle that covers the radial projection range of the vent hole, thereby adjusting the actual flow cross-sectional area of ​​the vent hole.

[0011] Preferably, there are multiple sets of vent holes and air baffles, and they correspond one-to-one.

[0012] Preferably, multiple sets of air-blocking plates rotate around the baffle axis.

[0013] Preferably, the cross-sections of the air baffle and the vent are similar, and the area of ​​the air baffle is larger than that of the vent.

[0014] This invention proposes an adjustable temperature silica sol reactor. Through a pressure regulating component, the steam intake can be precisely adjusted to effectively match the temperature requirements of both silica powder hydrolysis and ethyl silicate hydrolysis methods, reducing temperature fluctuations. Multiple pipes connected to the outer cavity at different heights allow for uniform steam distribution within the outer cavity. Guide grooves matching the outlets of these multiple pipes guide the airflow evenly, preventing localized stagnation and minimizing temperature differences within the reactor to ensure consistent reaction system temperature. A condensate pipe promptly discharges steam condensate to avoid affecting heat transfer efficiency and allows for rapid venting when rapid cooling is required, improving operational convenience. The uniform temperature also effectively controls the silica sol particle size distribution, reducing particle size inconsistencies and ensuring product storage stability. Simultaneously, it reduces the risk of production failures due to abnormal temperatures, improving production continuity.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the adjustable temperature silica sol reactor proposed in this utility model.

[0017] Figure 2 This is a front view of the adjustable temperature silica sol reactor proposed in this utility model;

[0018] Figure 3 This is a left view of the adjustable temperature silica sol reactor proposed in this utility model.

[0019] Figure 4 for Figure 3 Perspective view after sectioning along the AA direction;

[0020] Figure 5 This is a three-dimensional structural diagram of the pressure regulating component of the adjustable temperature silica sol reactor proposed in this utility model.

[0021] Figure 6 This is a front view of the pressure regulating component of the adjustable temperature silica sol reactor proposed in this utility model.

[0022] Reference numerals: 1. Reactor; 11. Inner cavity; 12. First motor; 13. Agitator; 14. Outlet pipe; 15. First valve; 2. Temperature control assembly; 21. Pressure regulating assembly; 211. Mounting pipe; 212. Second motor; 213. First bevel gear; 214. Second bevel gear; 215. Baffle; 216. Vent hole; 217. Mounting plate; 218. Air baffle plate; 22. Outer cavity; 23. Condensate pipe; 24. Second valve; 25. Guide groove; 26. Inlet pipe; 27. Multi-port pipe. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] Example 1

[0025] refer to Figures 1 to 6 The adjustable temperature silica sol reactor described in this embodiment includes a reactor 1 and a temperature control component 2. The reactor 1 includes an inner cavity 11 for reaction, a first motor 12, a stirrer 13, and an outlet pipe 14. The temperature control component 2 includes an outer cavity 22 for containing steam. The first motor 12 is installed on the top outer wall of the outer cavity 22 of the reactor 1. The output shaft of the first motor 12 passes through the outer cavity 22 and is inserted into the inner cavity 11 and fixedly connected to the stirrer 13. The first motor 12 is sealed with the top walls of the inner cavity 11 and the outer cavity 22. The outlet pipe 14 is located at the bottom of the inner cavity 11 and passes through the outer cavity 22 to communicate with the outside. A first valve 15 is installed on the outlet pipe 14. The outlet pipe 14 is sealed with the outer wall of the outer cavity 22.

[0026] The temperature control component 2 also includes a pressure regulating component 21 and a multi-port pipe 27 for adjusting the steam intake. The outlet end of the pressure regulating component 21 is connected to the multi-port pipe 27, and multiple outlets of the multi-port pipe 27 are connected to the outer cavity 22. An intake pipe 26 is installed at the intake end of the pressure regulating component 21, and the intake pipe 26 is connected to the steam tank to provide high-temperature steam.

[0027] Preferably, the multiple outlets of the multi-port pipe 27 are distributed along the height direction of the reactor 1, so that the steam enters the outer cavity 22 at different heights, thereby reducing the temperature difference at different heights.

[0028] Preferably, a spiral guide groove 25 is provided on the inner wall of the outer cavity 22. The air inlet end of the guide groove 25 is connected to the outlet end of the multi-port pipe 27. The airflow flows around the inner cavity 11 along the guide groove 25 to avoid local accumulation of airflow and uneven temperature distribution.

[0029] A condensate pipe 23 connected to the outside is installed at the bottom of the outer cavity 22. A second valve 24 is installed on the condensate pipe 23. The condensate pipe 23 is used to drain condensate and can also be used to cool the outer cavity 22.

[0030] The pressure regulating assembly 21 includes an installation pipe 211. Inside the installation pipe 211, there is a baffle 215 perpendicular to the airflow direction and an installation plate 217. The baffle 215 is installed on the inner wall of the installation pipe 211 and has a vent hole 216 that penetrates its thickness. An air baffle 218 is installed on the installation plate 217. The air baffle 218 covers the radial projection range of the vent hole 216 and adjusts the actual flow cross-sectional area of ​​the vent hole 216.

[0031] Preferably, the diameter of the mounting pipe 211 is larger than the diameter of the air inlet pipe 26 to balance the unperforated portion of the baffle 215 and increase the ventilation area.

[0032] Preferably, there are multiple sets of vent holes 216 and air baffles 218, and they correspond one-to-one.

[0033] Specifically, the mounting plate 217 is rotatably mounted on the baffle 215. The mounting plate 217 and the baffle 215 are coaxial, so multiple sets of air baffles 218 rotate around the axis of the baffle 215. A second bevel gear 214 is fixedly mounted on the mounting plate 217. A second motor 212 is mounted on the outer wall of the mounting tube 211. The output shaft of the second motor 212 passes through the mounting tube 211 and a first bevel gear 213 is mounted thereon. A seal is made between the output shaft of the second motor 212 and the mounting tube 211. The first bevel gear 213 and the second bevel gear 214 are meshed and connected.

[0034] The air baffle plate 218 and the vent hole 216 have similar cross-sections, and the area of ​​the air baffle plate 218 is larger than that of the vent hole 216, so as to completely block the vent hole 216, thereby stabilizing the airflow and temperature in the outer cavity 22.

[0035] The second motor 212 controls the first bevel gear 213 to rotate, which in turn controls the second bevel gear 214 to rotate. The second bevel gear 214 drives the mounting plate 217 to rotate, which in turn drives the air baffle plate 218 to rotate, thus controlling the size of the orifice through which the actual airflow passes.

[0036] In summary, the silica sol production reaction proceeds normally within the inner cavity 11. The first motor 12 drives the stirrer 13 to accelerate the reaction. After the reaction is completed, the first valve 15 is opened to output the product from the outlet pipe 14. During the reaction, the air intake is controlled by adjusting the actual air passage area of ​​the vent 216, thereby controlling the temperature. If rapid cooling is required, the condensate pipe 23 can be opened to achieve rapid venting.

[0037] This adjustable-temperature silica sol reactor can precisely regulate the steam intake through the pressure regulating component 21, effectively matching the temperature requirements of the silica powder hydrolysis and ethyl silicate hydrolysis methods, and reducing temperature fluctuations. The multi-port pipe 27 connects to the outer cavity 22 at different heights, allowing for uniform steam distribution within the outer cavity. A guide groove 25 at the outlet of the multi-port pipe 27 guides the airflow evenly, preventing localized stagnation and minimizing temperature differences within the reactor to ensure consistent reaction system temperature. The condensate pipe 23 promptly discharges steam condensate to avoid affecting heat transfer efficiency and allows for rapid venting when rapid cooling is required, improving operational convenience. The uniform temperature also effectively controls the silica sol particle size distribution, reduces particle size inconsistency, ensures product storage stability, and lowers the risk of production failures due to abnormal temperatures, thus improving production continuity.

[0038] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A temperature-adjustable silicon sol reactor, comprising a reactor (1) and a temperature control assembly (2), characterized in that: The reactor (1) includes an inner cavity (11) for reaction, and the temperature control component (2) includes an outer cavity (22) for containing steam, a pressure regulating component (21) for regulating the steam intake, and a multi-port pipe (27). The outlet of the pressure regulating component (21) is connected to the multi-port pipe (27), and multiple outlets of the multi-port pipe (27) are connected to the outer cavity (22).

2. The temperature-adjustable silica sol reactor according to claim 1, characterized in that: Multiple outlets of the multi-port pipe (27) are distributed along the height direction of the reactor (1).

3. The temperature-adjustable silica sol reactor according to claim 1, characterized in that: A spiral guide groove (25) is provided on the inner wall of the outer cavity (22), and the air inlet end of the guide groove (25) is connected to the outlet end of the multi-port pipe (27).

4. The adjustable temperature silica sol reactor according to claim 1, characterized in that: A condensate pipe (23) connecting to the outside is installed at the bottom of the outer cavity (22), and a second valve (24) is installed on the condensate pipe (23).

5. The temperature-adjustable silica sol reactor according to claim 1, characterized in that: The pressure regulating assembly (21) includes a baffle (215) perpendicular to the airflow direction and a mounting plate (217). The baffle (215) has a vent hole (216) that penetrates its thickness. The mounting plate (217) is equipped with a baffle plate (218). The baffle plate (218) covers the radial projection range of the vent hole (216) and adjusts the actual flow cross-sectional area of ​​the vent hole (216).

6. The temperature-adjustable silica sol reactor according to claim 5, characterized in that: There are multiple sets of vent holes (216) and air baffles (218), and they correspond one to one.

7. The adjustable temperature silica sol reactor according to claim 6, characterized in that: Multiple air baffles (218) rotate around the axis of baffle (215).

8. The temperature-adjustable silica sol reactor according to any one of claims 5-7, characterized in that: The cross-sections of the air baffle (218) and the vent (216) are similar, and the area of ​​the air baffle (218) is larger than that of the vent (216).

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