Temperature control mechanism of reaction kettle for preparing methyl phenyl silicone resin

Abstract

The utility model provides a temperature control mechanism of a reaction kettle for preparing methyl phenyl silicone resin, which comprises a kettle body and a kettle cover, a stirring mechanism is arranged on the kettle cover, a temperature control mechanism is arranged on the kettle body, and the temperature control mechanism comprises a hot air inlet pipe, a cold air inlet pipe, a plurality of nozzles and a driving assembly. The hot air inlet pipe and the cold air inlet pipe are connected with a hot air source and a cold air source respectively, the hot air inlet pipe and the cold air inlet pipe are connected with the corresponding sprayers respectively, and the driving assembly can drive the sprayers to move in the radial direction. When the temperature is regulated and controlled, nitrogen is introduced, through intermittent positive and negative rotation of the driving motor, the spray head realizes radial reciprocating movement in the kettle body, the sprayed nitrogen is uniformly fused on a reactant from bottom to top and exchanges heat with the reactant, and the gas after heat exchange is discharged from the exhaust port. Compared with a water bath type heat exchange device, the gas is used for directly exchanging heat with reactants, so that the heat conduction efficiency is high, the conduction is rapid, and the temperature in the reaction kettle can be accurately adjusted and controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical engineering, and particularly relates to a temperature control mechanism for a reaction kettle for preparing methyl phenyl silicone resin. Background Technique

[0002] When the materials in the reaction kettle react, they need to be carried out under certain temperature conditions. Therefore, a temperature control device needs to be provided on the reaction kettle so that the materials can react under suitable conditions.

[0003] At present, the generally adopted temperature control device generally adopts the water bath method. For example, a method for controlling the temperature of a reaction kettle with the Chinese patent publication number CN1695791A, its main steps are: passing hot water into the jacket of the reaction kettle to heat the reaction kettle, and the flow rate of the hot water is more than 100 tons per hour, and the temperature difference between the water inlet and the water outlet of the jacket does not exceed 5 °C. The advantages of the above temperature control method are: the stability of the temperature control in the reaction kettle is good, which is beneficial to industrial production; and the temperature rises relatively smoothly and there will be no sudden change, making the safety and reliability of the reaction kettle during operation higher.

[0004] However, passing water in the jacket needs to conduct heat through the outer wall of the reaction kettle. Not only is the heat conduction efficiency low, the heat loss is large, but also the heat conduction speed is slow, and there is a heat conduction lag. It is impossible to accurately and quickly adjust and control the temperature in the reaction kettle. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a temperature control mechanism for a reaction kettle for preparing methyl phenyl silicone resin, and solves the problems put forward in the above background technique.

[0007] (2) Technical Solutions

[0008] To achieve the above purposes, the utility model is realized through the following technical solutions: A temperature control mechanism for a reaction kettle for preparing methyl phenyl silicone resin, including a kettle body and a kettle cover. A stirring mechanism is arranged on the kettle cover, and a temperature control mechanism is arranged on the kettle body. The temperature control mechanism includes a hot gas inlet pipe, a cold gas inlet pipe, a plurality of nozzles and a driving component. The hot gas inlet pipe and the cold gas inlet pipe are respectively connected to a hot gas source and a cold gas source. The hot gas inlet pipe and the cold gas inlet pipe are respectively connected to the corresponding nozzles. The driving component can drive the plurality of nozzles to move radially. An exhaust port is arranged on the kettle cover.

[0009] Preferably, the driving assembly includes a fixed disk, a driving disk, a driving gear, a driving motor, and several groups of slide rails and sliders slidably adapted on the slide rails. The fixed disk is fixed at the lower part of the kettle body, and several slide rails are radially arranged on the fixed disk and distributed at equal angles around the center of the kettle body. Several nozzles are arranged one by one on the slider. The driving disk is pivoted at the bottom center of the kettle body, and the driving gear is pivoted at the bottom of the kettle body and meshes with the driving disk. The driving motor is connected to the driving gear in transmission. The driving disk is provided with several guide slides extending in an arc shape from the inside to the outside, and several of the guide slides correspond one by one to several sliders. Each slider is provided with a sliding shaft slidably adapted on the corresponding guide slide.

[0010] Preferably, the slide rails, sliders and nozzles are arranged in six groups in total, the hot air inlet pipe and the cold air inlet pipe are connected to three nozzles respectively, and the three nozzles connected to the hot air inlet pipe and the cold air inlet pipe are arranged alternately.

[0011] Preferably, a discharge valve is provided at the bottom of the kettle body, and a discharge hole corresponding to the discharge valve is opened at the center of the fixed disk and the driving disk.

[0012] Preferably, the stirring mechanism comprises a stirring paddle and a stirring motor, the stirring paddle is rotatably connected to the kettle cover, and the stirring motor is arranged on the kettle cover and connected to the stirring paddle.

[0013] Preferably, the hot air source and the cold air source are nitrogen or an inert gas.

[0014] Preferably, the kettle body and the kettle cover are fixedly connected via connecting ears.

[0015] (III) Beneficial effects

[0016] The utility model provides a temperature control mechanism for a reaction kettle for preparing methylphenyl silicone resin, which has the following beneficial effects:

[0017] 1. The temperature control mechanism of the reactor for preparing methylphenyl silicone resin, when adjusting the temperature, introduces nitrogen, and drives the motor to rotate forward and reverse intermittently, so that the nozzle can move radially back and forth in the reactor body, and the nitrogen sprayed is evenly integrated on the reactants from bottom to top, and heat is exchanged with the reactants, and the gas after heat exchange is discharged from the exhaust port. Compared with the water bath type heat exchange device, the heat transfer efficiency is high and the heat transfer is rapid, and the temperature in the reactor can be accurately adjusted and controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an external axonometric drawing of the utility model;

[0019] Figure 2 It is a half-section schematic diagram of the kettle body of the utility model;

[0020] Figure 3 Schematic diagram of the connection between the driving disk and the fixed disk of the present utility model;

[0021] Figure 4 Schematic diagram of the fixed disk of the present utility model.

[0022] In the figure: 1 kettle body, 2 kettle cover, 3 temperature control mechanism, 4 stirring paddle, 5 stirring motor, 6 discharge valve, 7 hot gas inlet pipe, 8 cold gas inlet pipe, 9 connecting ear, 10 discharge hole, 31 fixed disk, 32 slide rail, 33 slider, 34 spray head, 35 driving disk, 36 guiding slideway, 37 sliding shaft, 38 driving gear, 39 driving motor. Specific implementation manner

[0023] An embodiment of the present utility model provides a temperature control mechanism for a reaction kettle for preparing methylphenyl silicone resin. As Figures 1-4 shown, it includes a kettle body 1 and a kettle cover 2. A number of corresponding connecting ears 9 are provided on the kettle body 1 and the kettle cover 2, and the connecting ears 9 of the two are fixedly connected by bolts.

[0024] As Figure 2 shown, a stirring mechanism is provided on the kettle cover 2. The stirring mechanism includes a stirring paddle 4 and a stirring motor 5. The stirring paddle 4 is rotatably connected to the kettle cover 2, and the stirring motor 5 is provided on the kettle cover 2 and is connected to the stirring paddle 4.

[0025] As Figure 2 shown, a temperature control mechanism 3 is provided on the kettle body 1. The temperature control mechanism 3 includes a hot gas inlet pipe 7, a cold gas inlet pipe 8, a number of spray heads 34 and a driving assembly. The hot gas inlet pipe 7 and the cold gas inlet pipe 8 are respectively connected to a hot gas source and a cold gas source. The hot gas source and the cold gas source are nitrogen or inert gas. Nitrogen and inert gas are relatively stable and are not easy to react with chemical raw materials. The hot gas inlet pipe 7 and the cold gas inlet pipe 8 are respectively connected to the corresponding spray heads 34. The driving assembly can drive a number of spray heads 34 to move radially. An exhaust port is provided on the kettle cover 2.

[0026] The air supply principle of the hot gas source is: a chamber is provided, an electric heating wire is provided in the chamber, nitrogen is heated in the chamber and then introduced into the hot gas inlet pipe 7, and the gas after heat exchange is discharged through the exhaust port. The air supply principle of the cold gas source is: nitrogen is refrigerated by a refrigeration compressor and then introduced into the cold gas inlet pipe 8, and the gas after heat exchange is discharged through the exhaust port. Of course, other heating or refrigeration methods can also be used.

[0027] As Figures 2-4As shown in the figure, the driving component includes a fixed disk 31, a driving disk 35, a driving gear 38, a driving motor 39, several groups of slide rails 32, and sliders 33 slidably fitted on the slide rails 32. The fixed disk 31 is fixed at the lower part inside the kettle body 1. Several slide rails 32 are radially arranged on the fixed disk 31 and are equally angularly distributed around its center. Several spray heads 34 are respectively arranged on the sliders 33. In this embodiment, six groups of slide rails 32, sliders 33, and spray heads 34 are provided. The hot gas inlet pipe 7 and the cold gas inlet pipe 8 are respectively connected to three spray heads 34, and the three spray heads 34 connected to the hot gas inlet pipe 7 and the cold gas inlet pipe 8 are alternately arranged. The driving disk 35 is pivotally connected to the center of the bottom inside the kettle body 1. The driving disk 35 is a gear. The driving gear 38 is pivotally connected to the bottom inside the kettle body 1 and meshes with the driving disk 35. The driving motor 39 is arranged at the bottom of the kettle body 1, and the driving motor 39 is drivingly connected to the driving gear 38. The driving motor 39 drives the driving gear 38 to rotate, and drives the driving disk 35 to rotate through the driving gear 38. Then the driving disk 35, and the driving motor 39 is a motor that can rotate forward and backward.

[0028] The driving disk 35 is provided with several guiding slideways 36 extending in an arc from the inside to the outside. The several guiding slideways 36 correspond to the several sliders 33 one by one. Each slider 33 is provided with a sliding shaft 37 slidably fitted on the corresponding guiding slideway 36. When the driving disk 35 rotates, it drives the sliding shaft 37 to move radially through the guiding slideway 36, thereby driving the slider 33 and the spray head 34 to move radially.

[0029] A temperature sensor is arranged inside the kettle body 1.

[0030] An outlet valve 6 is arranged at the bottom of the kettle body 1. For the convenience of discharging materials, discharge holes 10 corresponding to the outlet valve 6 are opened at the centers of the fixed disk 31 and the driving disk 35. The materials in the kettle body 1 after the reaction enter the outlet valve 6 through the discharge holes 10, and the discharging is controlled through the outlet valve 6.

[0031] Working principle: When the temperature of the materials in the kettle body 1 decreases, hot nitrogen is injected into the kettle body 1. When the temperature of the materials in the kettle body 1 is relatively high, cold nitrogen is injected into the kettle body 1. When nitrogen is introduced, through the intermittent forward and reverse rotation of the driving motor 39, the spray head 34 realizes reciprocating radial movement inside the kettle body 1. The sprayed nitrogen is evenly fused on the reactants from bottom to top and conducts heat exchange with the reactants. The gas after heat exchange is discharged from the exhaust port. Compared with the water bath heat exchange device, the gas is directly used to conduct heat exchange with the reactants, the heat conduction efficiency is high, the conduction is rapid, and the temperature inside the reaction kettle can be accurately adjusted and controlled.

[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A temperature control mechanism for a reaction kettle for preparing methyl phenyl silicone resin, comprising a kettle body (1) and a kettle cover (2), wherein a stirring mechanism is arranged on the kettle cover (2), and it is characterized in that: The kettle body (1) is provided with a temperature control mechanism (3), the temperature control mechanism (3) comprises a hot air inlet pipe (7), a cold air inlet pipe (8), a plurality of nozzles (34) and a drive assembly, the hot air inlet pipe (7) and the cold air inlet pipe (8) are respectively connected to a hot air source and a cold air source, the hot air inlet pipe (7) and the cold air inlet pipe (8) are respectively connected to corresponding nozzles (34), the drive assembly can drive the plurality of nozzles (34) to radially move, and the kettle cover (2) is provided with an exhaust port.

2. The temperature control mechanism of a reaction kettle for preparing methylphenyl silicone resin according to claim 1, characterized in that: The driving assembly comprises a fixed plate (31), a driving plate (35), a driving gear (38), a driving motor (39), a plurality of sets of slide rails (32) and a slide block (33) slidably adapted on the slide rails (32); the fixed plate (31) is fixed to the lower part of the kettle body (1); the plurality of slide rails (32) are radially arranged on the fixed plate (31) and are distributed at equal angles around the center thereof; a plurality of nozzles (34) are arranged one by one on the slide block (33); the driving plate (35) is pivotally connected to the kettle body (1); The bottom center of the kettle body (1), the driving gear (38) is pivotally connected to the bottom of the kettle body (1) and meshes with the driving disk (35), the driving motor (39) is transmission-connected to the driving gear (38), the driving disk (35) is provided with a plurality of guide slideways (36) extending in an arc shape from the inside to the outside, the plurality of guide slideways (36) correspond to a plurality of sliders (33) one by one, and each slider (33) is provided with a sliding shaft (37) slidably adapted on the corresponding guide slideway (36).

3. The temperature control mechanism of a reaction kettle for preparing methylphenyl silicone resin according to claim 2, characterized in that: The slide rails (32), sliders (33) and nozzles (34) are arranged in six groups in total. The hot air inlet pipe (7) and the cold air inlet pipe (8) are respectively connected to three nozzles (34). The three nozzles (34) connected to the hot air inlet pipe (7) and the cold air inlet pipe (8) are arranged alternately.

4. The temperature control mechanism of a reaction kettle for preparing methylphenyl silicone resin according to claim 2, characterized in that: A discharge valve (6) is provided at the bottom of the kettle body (1), and a discharge hole (10) corresponding to the discharge valve (6) is opened at the center of the fixed plate (31) and the driving plate (35).

5. The temperature control mechanism of a reaction kettle for preparing methylphenyl silicone resin according to claim 1, characterized in that: The stirring mechanism comprises a stirring paddle (4) and a stirring motor (5); the stirring paddle (4) is rotatably connected to the kettle cover (2); and the stirring motor (5) is arranged on the kettle cover (2) and connected to the stirring paddle (4).

6. The temperature control mechanism of a reaction kettle for preparing methyl phenyl silicone resin according to claim 1, characterized in that: The hot air source and the cold air source are nitrogen or inert gas.

7. The temperature control mechanism of a reaction kettle for preparing methylphenyl silicone resin according to claim 1, characterized in that: The kettle body (1) and the kettle cover (2) are fixedly connected via a connecting ear (9).

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