Polycarbosilane synthesis reaction heater

Abstract

The utility model discloses a polycarbosilane synthesis reaction heater which is characterized in that the top of a kettle body is connected with a kettle cover, the kettle cover is provided with a connecting column extending into the kettle body, the connecting column is provided with a connecting disc, the bottom of the connecting disc is provided with a spiral heating pipe, and the bottom of an inner cavity of the connecting column is provided with a connecting shaft which penetrates through the two sides of the connecting column and is rotationally connected with the connecting column; the connecting shaft is connected with the connecting disc, the outer surface of the connecting shaft is fixedly connected with a driven bevel gear, the interior of the connecting column is rotationally connected with a longitudinally-arranged rotating shaft, and the bottom of the rotating shaft is fixedly connected with a driving bevel gear connected with the driven bevel gear in an engaged mode. Through the connecting disc at the bottom of the connecting column and the spiral heating pipe, materials are stirred through rotation of the connecting disc and the spiral heating pipe during heating, the contact opportunity of the materials and the heating pipe can be increased without depending on a traditional stirring paddle, convection and mixing of the materials are promoted, and the stirring device is particularly suitable for high-viscosity or easily-precipitated reaction materials; the heating uniformity and the reaction effect are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of polycarbosilane processing technology, specifically to a polycarbosilane synthesis reaction heater. BACKGROUND

[0002] Polycarbosilane is an organic silicon polymer with unique properties and important application value, which is usually in liquid or solid state, the main chain of the molecule is composed of alternating silicon and carbon atoms, and the side chain contains hydrogen or other organic groups, and it has good thermal stability and can maintain good chemical structure integrity at high temperature, and can be used to prepare high-temperature resistant materials, at the same time, it also has processability, and can be made into fibers, films, coatings and other different forms of materials through various molding processes, in the field of ceramics, polycarbosilane is an important precursor for preparing silicon carbide ceramics, which can be converted into high-performance silicon carbide ceramics through high-temperature pyrolysis, and has excellent properties such as high strength, high hardness and oxidation resistance, and is widely used in aerospace, automobile industry, electronics and other fields.

[0003] The Chinese patent with publication number CN219186932U discloses a polycarbosilane synthesis reaction heater, which comprises a reaction kettle and a heating device, the reaction kettle comprises a kettle body and a kettle cover, the heating device comprises a bottom disc, a connecting column and a heating element, one end of the connecting column is connected with the kettle cover, the other end is connected with the bottom disc, the heating element is fixed on the bottom disc, and after the kettle cover is matched with the kettle body, the bottom disc and the heating element are located in the kettle body.

[0004] In the above-mentioned patent, after the liquid small molecule polysilane enters the kettle body, the bottom disc and the heating element can increase the disturbance of the liquid, and at the same time, due to the better heating effect, the conventional stirring device matched in the reaction kettle can be cancelled under the premise of ensuring the reaction effect and efficiency, thereby reducing the equipment cost and energy consumption, but the polycarbosilane synthesis reaction heater has unsatisfactory stirring effect under the following conditions: the viscosity of the liquid small molecule polycarbosilane is large, the reaction system contains solid particles, the reaction scale is large, and the stirring intensity requirement is high, such as the bottom disc and the heating element have limited disturbance to the liquid when the viscosity is high, it is difficult to uniformly disperse the particles when containing solid particles, it is difficult to fully mix the liquid when the scale is large, and the intensity provided is insufficient when the stirring intensity requirement is high, thereby affecting the reaction effect and product quality. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a polycarbosilane synthesis reaction heater, through the connecting disc and the spiral heating pipe at the bottom of the connecting column, the stirring of the material is realized by the rotation of the connecting disc and the spiral heating pipe while heating, and the heating uniformity and the reaction effect are effectively improved.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a kind of polycarbosilane synthesis reaction heater, the top of the kettle body is connected with kettle cover, the bottom of the kettle cover is fixedly provided with the connecting column that extends into the inside of kettle body, the lower side of the connecting column is equipped with connecting disc, the bottom of the connecting disc is fixedly connected with spiral heating tube, the inner cavity bottom of the connecting column is provided with the connecting axle that is connected with the connecting column and is penetrated through both sides of connecting column, and the connecting axle is connected with connecting disc, the outer surface of the connecting axle is fixedly connected with passive bevel gear, the inside of the connecting column is rotatably connected with the rotation shaft that is arranged longitudinally, the bottom of the rotation shaft is fixedly connected with driving bevel gear that is meshed with passive bevel gear;The rotation shaft is driven to rotate, to drive driving bevel gear and passive bevel gear to meshed connection, to drive connecting axle to drive connecting disc and spiral heating tube to swing in kettle body.

[0007] Preferably, the top of the connecting disc is fixedly connected with a pair of connecting blocks, and the connecting axle is fixedly connected between the two connecting blocks.

[0008] Preferably, the outer surface of the kettle body is fixedly connected with a heat preservation sleeve, and the inside of the kettle body is fixedly connected with a discharge pipe that penetrates through the bottom of the heat preservation sleeve.

[0009] Preferably, the inside of the connecting column is provided with a plurality of bearings for the rotation shaft to pass through, and the lowermost bearing is located above the driving bevel gear.

[0010] Preferably, the number of bearings is 3, and the three bearings are equally spaced along the height direction of the connecting column.

[0011] Preferably, it further includes a transmission assembly for driving the rotation of the rotation shaft, the transmission assembly includes a straight gear one fixedly connected with the rotation shaft, the top of the kettle cover is rotatably connected with a gear tooth on one side close to the straight gear one, the top of the kettle cover is rotatably connected with a straight gear two on one side close to the gear tooth, the top of the kettle cover is rotatably connected with a straight gear three on one side close to the straight gear two, the straight gear three and the straight gear one are both fixedly connected with a transmission wheel, and a transmission belt is sleeved between the two transmission wheels.

[0012] Preferably, the straight gear one, the gear tooth, the straight gear two and the straight gear three are sequentially meshed with each other.

[0013] Preferably, the kettle cover is provided with a driving motor for driving the rotation of the gear tooth.

[0014] Preferably, the top of the kettle cover is fixedly connected with a mounting bracket, the driving motor is fixedly connected to the top of the mounting bracket, and the output shaft of the driving motor penetrates through the bottom of the mounting bracket and is fixedly connected with the gear tooth.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. The poly-carbosilane synthesis reaction heater provided by the utility model, through the connecting disc at the bottom of the connecting column and the spiral heating pipe, the stirring of the material is realized by the rotation of the connecting disc and the spiral heating pipe while heating, the contact opportunity of the material and the heating pipe is increased without relying on the traditional stirring paddle, the convection and mixing of the material are promoted, and the poly-carbosilane synthesis reaction heater is especially suitable for high-viscosity or easily precipitated reaction materials, and the heating uniformity and the reaction effect are effectively improved.

[0017] 2. The poly-carbosilane synthesis reaction heater provided by the utility model, the bearing installed in the connecting column can support the rotating shaft, the shaking condition of the rotating shaft in the rotating process is greatly reduced, the stability and reliability of the rotating mechanism are ensured, and the stirring and heating process can be accurately controlled.

[0018] 3. The poly-carbosilane synthesis reaction heater provided by the utility model, the special design of the straight gear and the residual tooth meshing transmission structure on the kettle cover is matched with the transmission wheel and the transmission belt, the residual tooth is driven to rotate by the driving motor, the connecting disc can realize reciprocating swing rotation, the problem that the connecting disc and the spiral heating pipe continuously rotate to cause the collision with the kettle body is avoided, the safety and stability of the equipment operation are improved, and the service life of the equipment is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective structural schematic view of the poly-carbosilane synthesis reaction heater of the utility model;

[0020] Figure 2 It is a kettle body longitudinal analysis view of the poly-carbosilane synthesis reaction heater of the utility model;

[0021] Figure 3 It is a connecting column exploded view of the poly-carbosilane synthesis reaction heater of the utility model;

[0022] Figure 4 It is a kettle body longitudinal analysis view of the poly-carbosilane synthesis reaction heater of the utility model;

[0023] Figure 5 It is Figure 4 The enlarged view of A part in the middle.

[0024] In the drawing: 1, kettle body; 2, heat preservation sleeve; 3, kettle cover; 4, discharge pipe; 5, connecting column; 6, connecting block; 7, connecting disc; 8, spiral heating pipe; 9, connecting shaft; 10, passive bevel gear; 11, driving bevel gear; 12, rotating shaft; 13, bearing; 14, mounting frame; 15, driving motor; 16, straight gear one; 17, residual tooth; 18, straight gear two; 19, straight gear three; 20, transmission wheel; 21, transmission belt. DETAILED DESCRIPTION

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., 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, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Example

[0030] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A polycarbosilane synthesis reactor heater includes a vessel body 1, a vessel cover 3 connected to the top of the vessel body 1, a connecting column 5 extending into the vessel body 1 fixedly installed at the bottom of the vessel cover 3, a connecting plate 7 provided on the lower side of the connecting column 5, a spiral heating tube 8 fixedly connected to the bottom of the connecting plate 7, a connecting shaft 9 provided at the bottom of the inner cavity of the connecting column 5 passing through both sides of the connecting column and rotatably connected to the connecting column, and the connecting shaft 9 fixedly connected to the connecting block 6 on the connecting plate 7, a passive bevel gear 10 fixedly connected to the outer surface of the connecting shaft 9, a longitudinally arranged rotating shaft 12 rotatably connected inside the connecting column 5, and an active bevel gear 11 meshing with the passive bevel gear 10 fixedly connected to the bottom of the rotating shaft 12; the rotating shaft 12 is driven to rotate, so as to drive the active bevel gear 11 to mesh with the passive bevel gear 10, thereby driving the connecting shaft 9 to drive the connecting plate 7 and the spiral heating tube 8 to swing inside the vessel body 1.

[0031] In actual operation, when the reactor needs to be used, open the reactor lid 3, put the material into the reactor body 1, and then close the reactor lid 3. At this time, start the spiral heating tube 8 to react the material at a suitable temperature. When the material reaction is complete, open the discharge pipe 4 to discharge the material.

[0032] Specifically, rotating the shaft 12 drives the active bevel gear 11 to rotate, which in turn drives the passive bevel gear 10 to rotate, thereby driving the connecting shaft 9 and the two connecting blocks 6 to rotate together. This causes the connecting plate 7 and the spiral heating tube 8 to oscillate, thereby stirring the material inside the vessel 1. The spiral heating tube 8 stirs the material inside the vessel 1, increasing the contact opportunity between the material and the heating tube without relying on a traditional stirring paddle, promoting material convection and mixing. This is especially effective for high-viscosity or easily precipitated reactive materials, improving heating uniformity and reaction efficiency.

[0033] See Figure 1 An insulation sleeve 2 is fixedly connected to the outer surface of the vessel body 1, and a discharge pipe 4 is fixedly connected to the bottom of the insulation sleeve 2 inside the vessel body 1.

[0034] See Figure 3 The connecting column 5 is provided with several bearings 13 for the rotating shaft 12 to pass through, and the lowest bearing is located above the driving bevel gear 11; there are 3 bearings 13, and the 3 bearings 13 are evenly distributed along the height direction of the connecting column 5.

[0035] The three bearings 13 can support the rotating shaft 12, greatly reducing the vibration of the rotating shaft 12 during rotation.

[0036] See Figure 5It also includes a transmission assembly for driving the rotating shaft 12 to rotate. The transmission assembly includes a spur gear 16 fixedly connected to the rotating shaft 12. A residual tooth 17 is rotatably connected to the top of the lid 3 near the side of the spur gear 16. A spur gear 28 is rotatably connected to the top of the lid 3 near the side of the residual tooth 17. A spur gear 39 is rotatably connected to the top of the lid 3 near the side of the spur gear 28. Both the spur gear 39 and the spur gear 16 are fixedly connected to a transmission wheel 20. A transmission belt 21 is sleeved between the two transmission wheels 20. The spur gear 16, the residual tooth 17, the spur gear 28 and the spur gear 39 are sequentially meshed with each other.

[0037] Rotating the residual gear 17 clockwise causes the spur gear 16 to rotate counterclockwise. When the residual gear 17 is no longer meshing with the spur gear 16, the residual gear 17 begins to mesh with the spur gear 2 18, which in turn causes the spur gear 2 18 to rotate counterclockwise, and then causes the spur gear 3 19 to rotate clockwise. Through the cooperation of the two transmission wheels 20 and the transmission belt 21, the spur gear 16 is driven to rotate clockwise. Therefore, the continuous clockwise rotation of the residual gear 17 can drive the spur gear 16 to rotate back and forth, which in turn drives the rotating shaft 12 to rotate back and forth. This can drive the connecting plate 7 to rotate back and forth in an oscillating manner, thereby avoiding the continuous rotation of the connecting plate 7 and the spiral heating tube 8, which could lead to a collision with the vessel body 1.

[0038] See Figure 4 The lid 3 is equipped with a drive motor 15 for driving the residual tooth 17 to rotate; the top of the lid 3 is fixedly connected to a mounting bracket 14, the drive motor is fixedly connected to the top of the mounting bracket 14, and the output shaft of the drive motor 15 passes through the bottom of the mounting bracket 14 and is fixedly connected to the residual tooth 17.

[0039] Specifically, starting the drive motor 15 will cause the residual tooth 17 to rotate continuously clockwise.

[0040] 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 the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polycarbosilane synthesis reaction heater, comprising a vessel body (1), characterized in that: The top of the vessel body (1) is connected to a vessel lid (3). A connecting column (5) extending into the vessel body (1) is fixedly installed at the bottom of the vessel lid (3). A connecting plate (7) is provided on the lower side of the connecting column (5). A spiral heating tube (8) is fixedly connected to the bottom of the connecting plate (7). A connecting shaft (9) is provided at the bottom of the inner cavity of the connecting column (5), penetrating both sides of the connecting column and rotatably connected to the connecting column. The connecting shaft (9) is connected to the connecting plate (7). The outer surface of the connecting shaft (9) is... A passive bevel gear (10) is fixedly connected to the surface. A longitudinally arranged rotating shaft (12) is rotatably connected inside the connecting column (5). An active bevel gear (11) that meshes with the passive bevel gear (10) is fixedly connected to the bottom of the rotating shaft (12). The rotating shaft (12) is driven to rotate so as to drive the active bevel gear (11) to mesh with the passive bevel gear (10), thereby driving the connecting shaft (9) to drive the connecting plate (7) and the spiral heating tube (8) to swing inside the vessel body (1).

2. The polycarbosilane synthesis reaction heater according to claim 1, characterized in that: A pair of connecting blocks (6) are fixedly connected to the top of the connecting disk (7), and the connecting shaft (9) is fixedly connected between the two connecting blocks (6).

3. A polycarbosilane synthesis reaction heater according to claim 1, characterized in that: The outer surface of the vessel body (1) is fixedly connected to a heat insulation sleeve (2), and the bottom of the heat insulation sleeve (2) is fixedly connected to the inside of the vessel body (1).

4. A polycarbosilane synthesis reaction heater according to claim 1, characterized in that: The connecting column (5) is provided with several bearings (13) through which the rotating shaft (12) passes, and the lowest bearing is located above the driving bevel gear (11).

5. A polycarbosilane synthesis reaction heater according to claim 4, characterized in that: The number of bearings (13) is 3, and the 3 bearings (13) are evenly distributed along the height direction of the connecting column (5).

6. A polycarbosilane synthesis reaction heater according to claim 1, characterized in that: It also includes a transmission assembly for driving the rotating shaft (12) to rotate. The transmission assembly includes a spur gear one (16) fixedly connected to the rotating shaft (12). A residual tooth (17) is rotatably connected to the top of the lid (3) near the side of the spur gear one (16). A spur gear two (18) is rotatably connected to the top of the lid (3) near the side of the residual tooth (17). A spur gear three (19) is rotatably connected to the top of the lid (3) near the side of the spur gear two (18). Both the spur gear three (19) and the spur gear one (16) are fixedly connected to a transmission wheel (20). A transmission belt (21) is sleeved between the two transmission wheels (20).

7. A polycarbosilane synthesis reaction heater according to claim 6, characterized in that: The first spur gear (16), the residual tooth (17), the second spur gear (18), and the third spur gear (19) are sequentially meshed with each other.

8. A polycarbosilane synthesis reaction heater according to claim 6, characterized in that: The lid (3) is equipped with a drive motor (15) for driving the residual tooth (17) to rotate.

9. A polycarbosilane synthesis reaction heater according to claim 8, characterized in that: The top of the lid (3) is fixedly connected to a mounting bracket (14), the drive motor is fixedly connected to the top of the mounting bracket (14), and the output shaft of the drive motor (15) passes through the bottom of the mounting bracket (14) and is fixedly connected to the residual tooth (17).

Images