A reaction kettle for processing silicone surfactant

Abstract

The utility model discloses a kind of reaction kettle for organic silicon surfactant processing, the center position on the upper surface of kettle cover on kettle top end is provided with motor by motor base, the output shaft of motor is connected with main shaft by coupling, main shaft bottom end is provided with stirring paddle, kettle outer surface is provided with coil pipe, kettle outside is also wrapped with jacket, jacket is also set to the outside of coil pipe, jacket top end is provided with annular sealing plate, the bottom of jacket inside is provided with several support plates, support plate inside is supported in kettle bottom, first heat exchange medium inlet is connected with one end of coil pipe lower part, first heat exchange medium outlet is connected with one end of coil pipe upper part, the utility model structure is reasonable, kettle outside is provided with coil pipe and jacket, start stirring, heating is carried out by jacket, when adding catalyst, after emptying jacket, cooling can be carried out by coil pipe, heating and cooling heat exchange are carried out using jacket and coil pipe two ways, compared with the structure of traditional single jacket or single coil pipe, heat exchange medium can be quickly switched.

Description

Technical Field

[0001] This utility model relates to the field of chemistry, and in particular to a reaction vessel, specifically a reaction vessel for processing organosilicon surfactants. Background Technology

[0002] Organosilicon surfactants are a class of special surfactants with polydimethylsiloxane as the hydrophobic backbone and one or more hydrophilic groups (such as polyether, polyglycerol, quaternary ammonium salt, etc.) attached to it. They have good spreadability, low surface tension, wettability, and defoaming properties.

[0003] During the processing of organosilicon surfactants, a specific temperature must be maintained; excessively high or low temperatures will lead to production failure. When adding hydrogen-containing silicone oil and unsaturated polyether, hot gas or oil is introduced into the jacket, and the internal temperature of the reactor is maintained at 80-120°C for stirring. Then, the catalyst is added. Because this is an exothermic reaction, cooling is required using the heat exchange medium in the jacket. Current technology uses only one jacket, resulting in low cooling efficiency. Therefore, an improved technology is urgently needed to solve the aforementioned problems in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a reaction vessel for processing organosilicon surfactants, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reaction vessel for processing organosilicon surfactants, comprising a vessel body, a vessel cover, a motor, a main shaft, a stirring paddle, a jacket, and a coil. The vessel body is provided with a vessel cover at its top. A motor is mounted on the center of the upper surface of the vessel cover via a motor mount. The output shaft of the motor is connected to the main shaft via a coupling. A stirring paddle is provided at the bottom of the main shaft and is rotatably mounted inside the vessel body. A coil is provided on the outer surface of the vessel body. The vessel body is also wrapped with a jacket, which is located outside the coil. An annular sealing plate is provided at the top of the jacket, and the inner wall of the annular sealing plate is connected to the outer surface of the vessel body. Several support plates are provided at the bottom of the jacket, and the inner side of the support plates supports the bottom of the vessel body. A first heat exchange medium inlet is connected to the lower end of the coil, and a first heat exchange medium outlet is connected to the upper end of the coil. Both the first heat exchange medium outlet and the first heat exchange medium inlet pass through the side wall of the jacket and are welded to the jacket at their connection points.

[0006] Preferably, the present invention provides a reaction vessel for processing organosilicon surfactants, wherein a discharge port is provided at the center of the bottom of the vessel body.

[0007] Preferably, the present invention provides a reaction vessel for processing organosilicon surfactants, wherein the bottom of the vessel body is provided with support legs at each support plate.

[0008] Preferably, the present invention provides a reaction vessel for processing organosilicon surfactants, wherein a second heat exchange medium inlet is provided at the bottom of the jacket, and a second heat exchange medium outlet is provided on one side of the upper part of the jacket.

[0009] Preferably, the present invention provides a reaction vessel for processing organosilicon surfactants, wherein the vessel cover is provided with several feed inlets, thermometer ports and pressure gauge ports, and inert gas inlets and exhaust ports are also provided on both sides of the vessel cover.

[0010] Preferably, the present invention provides a reaction vessel for processing organosilicon surfactants, wherein the upper end and the lower end of the coil are both bent outward at 90°, and the outer surface of the bent portion of the upper end and the lower end of the coil is provided with a reinforcing plate, which is also connected to the outer surface of the vessel body.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The vessel body is equipped with a coil and a jacket. The coil is located between the jacket and the vessel body. The jacket is used for the flow of heat medium, while the coil is used for the flow of cold medium. When stirring begins, heating is carried out through the jacket. When a catalyst is added, cooling is carried out through the coil after the jacket is emptied. The heat exchange is carried out through two paths, the jacket and the coil, which allows for rapid switching of the heat exchange medium, greatly improving efficiency compared to the traditional single jacket or single coil structure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top view of the jacket structure.

[0015] In the diagram: 1. Vessel body; 2. Vessel cover; 3. Motor; 4. Main shaft; 5. Stirring paddle; 6. Jacket; 7. Coil; 8. Annular sealing plate; 9. Support plate; 10. First heat exchange medium inlet; 11. First heat exchange medium outlet; 12. Discharge port; 13. Support leg; 14. Second heat exchange medium inlet; 15. Second heat exchange medium outlet; 16. Feed inlet; 17. Thermometer port; 18. Pressure gauge port; 19. Inert gas inlet; 20. Exhaust port; 21. Reinforcing plate. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., 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.

[0018] Please see Figure 1-2 This utility model provides a technical solution: a reaction vessel for processing organosilicon surfactants, comprising a vessel body 1, a vessel cover 2, a motor 3, a main shaft 4, a stirring paddle 5, a jacket 6, and a coil 7. The vessel cover 2 is located at the top of the vessel body 1. The motor 3 is mounted on the center of the upper surface of the vessel cover 2 via a motor mount. The output shaft of the motor 3 is connected to the main shaft 4 via a coupling. The stirring paddle 5 is located at the bottom of the main shaft 4 and is rotatably mounted inside the vessel body 1. The coil 7 is located on the outer surface of the vessel body 1. The vessel body 1 is also wrapped with a jacket 6, which is located outside the coil 7. A second heat exchange medium inlet 14 is located at the bottom of the jacket 6, and a second heat exchange medium outlet 15 is located on one side of the upper part of the jacket 6, so as to realize the entry or exit of the heat exchange medium into or out of the jacket 6. The jacket 6 is provided with an annular sealing plate 8 at the top. The inner wall of the annular sealing plate 8 is connected to the outer surface of the vessel body 1. Several support plates 9 are provided at the bottom inside the jacket 6. The inner side of the support plates 9 supports the bottom of the vessel body 1. The lower end of the coil 7 is connected to the first heat exchange medium inlet 10, and the upper end of the coil 7 is connected to the first heat exchange medium outlet 11. The first heat exchange medium outlet 11 and the first heat exchange medium inlet 10 are both inserted through the side wall of the jacket 6 and the connection is welded to the jacket 6. The center of the bottom of the vessel body 1 is provided with a discharge port 12 to realize the discharge of materials. Support legs 13 are provided at each support plate 9 at the bottom of the vessel body 1 to realize the overall support and fixation. The support legs 13 correspond to the support plates 9 to avoid deformation of the corresponding position of the jacket 6.

[0019] The vessel lid 2 is provided with several feed inlets 16, thermometer ports 17 and pressure gauge ports 18. Inert gas inlets 19 and exhaust ports 20 are also provided on both sides of the vessel lid 2. The feed inlets 16 are used for adding raw materials, the thermometer ports 17 are used for installing thermometers to monitor the temperature inside the vessel body 1, the pressure gauge ports 18 are used for installing pressure gauges to monitor the pressure inside the vessel body 1, the inert gas inlets 19 are used for adding inert gas into the vessel body 1, and the exhaust ports 20 are used for venting air.

[0020] Both the upper and lower ends of the coil 7 are bent outward at 90°. Reinforcing plates 21 are provided on the outer surfaces of the bent portions at both ends of the coil 7, and these reinforcing plates 21 are also connected to the outer surface of the vessel body 1. The reinforcing plates 21 provide support to ensure that the ends of the coil 7 do not deform when connecting the first heat exchange medium inlet 10 and the first heat exchange medium outlet 11.

[0021] Installation method and operating principle: First, weld the coil 7 to the outer wall of the vessel body 1. Bend both the lower and upper ends of the coil 7 outwards by 90°. Weld several reinforcing plates to the outer wall of the bent portions of the lower and upper ends of the coil 7, and weld the reinforcing plates to the outer wall of the vessel body 1 to ensure the structural strength of the bent portions of the lower and upper ends of the coil 7. Then, fit the jacket 6 onto the outside of the vessel body 1 from bottom to top, and support the bottom of the vessel body 1 with the support plate 9. At this time, the hole of the jacket 6 corresponds to the bent portions of the lower and upper ends of the coil 7. Pass the first heat exchange medium inlet 10 through the hole and insert it into the lower end of the coil 7, sealing it with a sealing ring. Pass the first heat exchange medium outlet 11 through the hole and insert it into the upper end of the coil 7, sealing it with a sealing ring. Then, weld both the first heat exchange medium inlet 10 and the first heat exchange medium outlet 11 to the jacket 6. The annular sealing plate 8 is fitted onto the outside of the vessel body 1, and the annular sealing plate 8 is welded to the top end of the jacket 6 and the outer wall of the vessel body 1, thus completing the connection between the jacket 6 and the coil 7 and the vessel body 1. The motor 3 is installed on the top of the vessel cover 2, and the top end of the main shaft 4 with the stirring paddle 5 is connected to the output shaft of the motor 3 through a coupling. After lifting the vessel cover 2, the stirring paddle 5 and the main shaft 4 are placed into the vessel body 1, and the vessel cover 2 is fastened to the vessel body 1 to complete the installation. During operation, the raw materials (containing hydrogen silicone oil and unsaturated polyether) are first fed into the vessel 1 through the various feed inlets 16. Inert gas (high-purity nitrogen or argon) is then introduced into the vessel 1 through the inert gas inlet 19 to remove oxygen and moisture from the air in the vessel 1. Next, the heat medium is introduced into the jacket 6 through the second heat exchange medium inlet 14 to heat the inside of the vessel 1. The motor 3 is then started, which drives the main shaft 4 and the stirring paddle 5 to rotate, thereby agitating the materials. During the agitation process, a catalyst solution is added. This reaction is exothermic, and the heat medium is vented from the jacket 6. Then, the coolant is introduced into the coil 7 through the first heat exchange medium inlet 10 to exchange heat with the inside of the vessel 1, keeping the agitation temperature at 90~120℃ and preventing the temperature from rising continuously during agitation. This utility model has a reasonable structure. The vessel body 1 is equipped with a coil 7 and a jacket 6. The coil 7 is located between the jacket 6 and the vessel body 1. The jacket 6 is used for the flow of heat medium, and the coil 7 is used for the flow of cold medium. When stirring starts, heating is carried out through the jacket 6. When adding catalyst, cooling is carried out through the coil 7 after the jacket 6 is emptied. The heat exchange is carried out through two paths, the jacket 6 and the coil 7, which allows for rapid switching of heat exchange medium compared to the traditional single jacket 6 or single coil 7 structure, greatly improving efficiency.

[0022] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0023] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A reaction vessel for processing organosilicon surfactants, characterized in that: The vessel includes a vessel body (1), a vessel lid (2), a motor (3), a main shaft (4), a stirring paddle (5), a jacket (6), and a coil (7). The vessel body (1) is topped with a vessel lid (2). A motor (3) is mounted on the center of the upper surface of the vessel lid (2) via a motor mount. The output shaft of the motor (3) is connected to the main shaft (4) via a coupling. A stirring paddle (5) is mounted at the bottom of the main shaft (4). The stirring paddle (5) is rotatably mounted inside the vessel body (1). A coil (7) is mounted on the outer surface of the vessel body (1). The vessel body (1) is also enclosed by a jacket (6). The jacket (6) is also equipped with... Outside the coil (7), the top of the jacket (6) is provided with an annular sealing plate (8). The inner wall of the annular sealing plate (8) is connected to the outer surface of the vessel body (1). The bottom of the jacket (6) is provided with several support plates (9). The inner side of the support plates (9) is supported on the bottom of the vessel body (1). The lower end of the coil (7) is connected to the first heat exchange medium inlet (10). The upper end of the coil (7) is connected to the first heat exchange medium outlet (11). The first heat exchange medium outlet (11) and the first heat exchange medium inlet (10) are both inserted through the side wall of the jacket (6) and the connection is welded to the jacket (6).

2. The reaction vessel for processing organosilicon surfactants according to claim 1, characterized in that: The bottom center of the vessel body (1) is provided with a discharge port (12).

3. The reaction vessel for processing organosilicon surfactants according to claim 1, characterized in that: The bottom of the vessel body (1) is provided with support legs (13) at each support plate (9).

4. The reaction vessel for processing organosilicon surfactants according to claim 1, characterized in that: The jacket (6) has a second heat exchange medium inlet (14) at the bottom and a second heat exchange medium outlet (15) on one side of the upper part of the jacket (6).

5. The reaction vessel for processing organosilicon surfactants according to claim 1, characterized in that: The lid (2) is provided with several feed inlets (16), thermometer inlets (17) and pressure gauge inlets (18). Inert gas inlets (19) and exhaust ports (20) are also provided on both sides of the lid (2).

6. The reaction vessel for processing organosilicon surfactants according to claim 1, characterized in that: The upper end and the lower end of the coil (7) are both bent outward at 90°. The outer surface of the bent part of the upper end and the lower end of the coil (7) is provided with a reinforcing plate (21). The reinforcing plate (21) is also connected to the outer surface of the vessel body (1).

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