Reaction kettle for silicone oil processing

Abstract

The utility model relates to the technical field of silicone oil production, in particular to a silicone oil processing reaction kettle which comprises a reaction kettle body, a stirring component is arranged in the reaction kettle body, a feeding transfer box is arranged above the top end of the outer wall of the reaction kettle body, and a primary mixing component is arranged between the bottom end of the outer wall of the feeding transfer box and the top end of the inner wall of the reaction kettle body. According to the material mixing device disclosed by the utility model, raw materials are firstly conveyed into the feeding transfer box, so that the feeding transfer box can distribute the raw materials into the supporting and feeding pipe, the supporting and feeding pipe can primarily mix the raw materials through the rotating second stirring blade and the distributing disc, and the mixed raw materials can enter the inner material mixing tank; the raw materials are mixed and stirred again through the first stirring blades rotating in the inner mixing tank, and finally the raw materials flow into the reaction kettle and are continuously heated and stirred through the first stirring rods, so that the device can be fully pre-stirred in the feeding process in the manner, and the subsequent stirring time can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of silicone oil production, and particularly relates to a reaction kettle for silicone oil processing. Background Art

[0002] Silicone oil generally refers to linear polysiloxane products that remain in a liquid state at room temperature. It is generally divided into two categories: methyl silicone oil and modified silicone oil. The most commonly used silicone oil - methyl silicone oil, also known as ordinary silicone oil, has all its organic groups as methyl groups. Methyl silicone oil has good chemical stability, insulation properties, and good hydrophobic properties. It is prepared by hydrolyzing dimethyldichlorosilane with water to obtain a primary polycondensed cyclic body. The cyclic body is obtained by cracking and rectifying to obtain a low cyclic body. Then, the cyclic body, end-capping agent, and catalyst are put together for telomerization to obtain mixtures with different degrees of polymerization. After vacuum distillation to remove low-boiling substances, silicone oil can be prepared.

[0003] During the production process of silicone oil, the cyclic body and some other catalysts and auxiliary additives need to be added into the reaction kettle for production to obtain silicone oil. During the reaction production process of silicone oil, personnel need to ensure that various auxiliary materials and the cyclic body can be fully mixed to obtain silicone oil of the required quality. However, the stirring device in the reaction kettle is prone to the situation of stirring dead corners during the reaction process, resulting in the need to extend the stirring time to make the silicone oil mix more evenly. Although the required mixing effect can be achieved, it will extend the processing time required, and the production efficiency of silicone oil will be affected accordingly. Therefore, there are still certain deficiencies in the existing silicone oil reaction kettle during use.

[0004] In summary, it is very necessary to invent a reaction kettle for silicone oil processing. Content of the Utility Model

[0005] Therefore, the utility model provides a reaction kettle for silicone oil processing to solve the problem that the stirring device in the reaction kettle is prone to the situation of stirring dead corners during the reaction process, resulting in the need to extend the stirring time to make the silicone oil mix more evenly. Although the required mixing effect can be achieved, it will extend the processing time required, and the production efficiency of silicone oil will be affected accordingly.

[0006] To achieve the above object, the utility model provides the following technical solution: A reaction kettle for silicone oil processing, including a reaction kettle, a stirring component is arranged inside the reaction kettle, a feed transfer tank is arranged above the top of the outer wall of the reaction kettle, and a primary mixing component is arranged between the bottom of the outer wall of the feed transfer tank and the top of the inner wall of the reaction kettle, and a second mixing component is arranged at the top of the inner wall of the reaction kettle.

[0007] Preferably, the stirring member includes a first stirring rod, which is arranged inside the reaction kettle and is rotationally connected to the centers of the upper and lower sides of the inner wall of the reaction kettle at its upper and lower ends. At the top of the outer wall of the reaction kettle and at the position corresponding to the first stirring rod, a first stirring motor is fixed, and the bottom output shaft of the first stirring motor is fixedly connected to the upper end of the first stirring rod.

[0008] Preferably, on the outer wall of the feed transfer tank and on the side far from the reaction kettle, feed pipes for feeding are communicated. The initial mixing member includes a supporting feeding pipe, and the upper and lower ends of the supporting feeding pipe are communicated with the bottom end of the inner wall of the feed transfer tank and the top end of the inner wall of the reaction kettle respectively.

[0009] Preferably, a plurality of the supporting feeding pipes are uniformly arranged in an annular array. On the bottom end of the inner wall of the feed transfer tank and inside the supporting feeding pipes, material distribution cones are fixed, and rotating shafts are rotationally connected to the inner walls of the vertical sections of the supporting feeding pipes.

[0010] Preferably, at the top of the outer wall of the supporting feeding pipe and above the rotating shaft, a second stirring motor is fixed, and the bottom output shafts of the second stirring motors are fixedly connected to the tops of the rotating shafts respectively. The upper end of the rotating shaft is rotationally connected to the corresponding position at the top end of the inner wall of the supporting feeding pipe.

[0011] Preferably, on the outer walls of the rotating shafts and inside the supporting feeding pipes, second stirring blades are fixed. A plurality of the second stirring blades are vertically arranged in a strip array. Between two adjacent second stirring blades above and below in sequence, a first flow dividing disc, a second flow dividing disc, a third flow dividing disc and a fourth flow dividing disc are arranged. The upper and lower sides of the outer walls of the first flow dividing disc, the second flow dividing disc, the third flow dividing disc and the fourth flow dividing disc are rotationally connected to the outer wall of the rotating shaft through avoidance holes opened, and the outer walls of the first flow dividing disc, the second flow dividing disc, the third flow dividing disc and the fourth flow dividing disc are fixedly connected to the side ends of the inner wall of the supporting feeding pipe.

[0012] Preferably, the second mixing member includes an internal mixing tank, which is fixed to the top end of the inner wall of the reaction kettle. The upper end of the first stirring rod penetrates through the internal mixing tank and is rotationally connected to the top end of the inner wall of the reaction kettle. A sleeve ring is fixedly sleeved on the outer wall of the first stirring rod and inside the internal mixing tank.

[0013] Preferably, on both sides of the outer wall of the sleeve ring, first stirring blades for stirring are fixed. On the bottom end of the inner wall of the internal mixing tank, liquid discharging outlets for discharging liquid are arranged in an annular array.

[0014] The beneficial effects of the present utility model are:

[0015] In the present utility model, by first conveying raw materials into the feeding transfer tank, the feeding transfer tank can divert the raw materials into the supporting feeding pipe. The supporting feeding pipe can initially mix the raw materials through the rotating second stirring blades and the diversion plate. The mixed raw materials will enter the internal mixing tank, and the raw materials are further mixed and stirred by the rotating first stirring blades in the internal mixing tank. Finally, the raw materials flow into the reaction kettle, where the first stirring rod continues to heat and stir. Through the above method, the device can perform sufficient pre-stirring during the feeding process, thereby shortening the subsequent stirring time and improving the production efficiency of silicone oil. Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the external structure in the front view direction of the present utility model;

[0017] Figure 2 It is a schematic diagram of the partial sectional structure in the front view direction of the present utility model;

[0018] Figure 3 For the present utility model Figure 2 The enlarged schematic diagram of the structure at A;

[0019] Figure 4 It is a three-dimensional structure schematic diagram of the second stirring blade in the top view direction of the present utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the first diversion plate in the top view direction of the present utility model;

[0021] Figure 6 It is a schematic diagram of the structure of the second diversion plate in the top view direction of the present utility model;

[0022] Figure 7 It is a schematic diagram of the structure of the third diversion plate in the top view direction of the present utility model;

[0023] Figure 8 It is a schematic diagram of the structure of the fourth diversion plate in the top view direction of the present utility model.

[0024] In the figure: 100, reaction kettle; 110, first stirring motor; 120, first stirring rod; 200, internal mixing tank; 210, collar; 220, first stirring blade; 230, liquid outlet; 300, feeding transfer tank; 310, material distribution cone; 320, feeding pipe; 330, supporting feeding pipe; 331, second stirring motor; 332, rotating shaft; 333, second stirring blade; 334, first diversion plate; 335, second diversion plate; 336, third diversion plate; 337, fourth diversion plate. Detailed Description of the Embodiment

[0025] The preferred embodiments of the present utility model will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present utility model, and are not intended to limit the present utility model.

[0026] Referring to the attached Figures 1-8 , a reactor for silicone oil processing provided by the present utility model includes a reactor 100. A stirring component is arranged inside the reactor 100. The stirring component includes a first stirring rod 120. The first stirring rod 120 is arranged inside the reactor 100 and is rotatably connected to the centers of the upper and lower sides of the inner wall of the reactor 100 at its upper and lower ends. At the top of the outer wall of the reactor 100 and at a position corresponding to the first stirring rod 120, a first stirring motor 110 is fixed. The bottom output shaft of the first stirring motor 110 is fixedly connected to the upper end of the first stirring rod 120. The arranged first stirring motor 110 can drive the first stirring rod 120 to rotate after being powered on, so that the first stirring rod 120 can stir the silicone oil inside the reactor 100. And a circular heating wire is arranged at the bottom of the side wall of the reactor 100, which can perform heating treatment during the silicone oil reaction process;

[0027] Above the top of the outer wall of the reaction kettle 100, a feed transfer tank 300 is provided. Between the bottom end of the outer wall of the feed transfer tank 300 and the top end of the inner wall of the reaction kettle 100, a primary mixing component is provided. On the outer wall of the feed transfer tank 300 and on the side far from the reaction kettle 100, feed pipes 320 for feeding are connected. The feed pipes 320 are provided to facilitate personnel to add various raw materials into the feed transfer tank 300 in proportion. The primary mixing component includes a support feeding pipe 330. The upper and lower ends of the support feeding pipe 330 are respectively connected to the bottom end of the inner wall of the feed transfer tank 300 and the top end of the inner wall of the reaction kettle 100. Multiple support feeding pipes 330 are evenly arranged in an annular array. The feed transfer tank 300 is arranged in a bent manner. The feed transfer tank 300 can not only convey raw materials but also support the feed transfer tank 300. At the bottom end of the inner wall of the feed transfer tank 300 and inside the support feeding pipe 330, a material distribution cone 310 is fixed. The material distribution cone 310 is provided to enable the raw materials in the feed transfer tank 300 to be discharged through the support feeding pipe 330. Inside the vertical section of the support feeding pipe 330, a rotating shaft 332 is rotatably connected. Above the rotating shaft 332 and at the top end of the outer wall of the support feeding pipe 330, a second stirring motor 331 is fixed. The bottom output shaft of the second stirring motor 331 is fixedly connected to the top of the rotating shaft 332. The upper end of the rotating shaft 332 is rotatably connected to the corresponding position at the top end of the inner wall of the support feeding pipe 330. By setting the second stirring motor 331, the rotating shaft 332 can be driven to rotate. And a sealing treatment needs to be done at the connection between the rotating shaft 332 and the inner wall of the support feeding pipe 330. On the outer wall of the rotating shaft 332 and inside the support feeding pipe 330, second stirring blades 333 are fixed. Multiple second stirring blades 333 are vertically arranged in a strip array. When the rotating shaft 332 rotates, it can drive the second stirring blades 333 to rotate. When the second stirring blades 333 rotate, they can stir the raw materials conveyed by the support feeding pipe 330. Between two adjacent second stirring blades 333 up and down, a first diversion plate 334, a second diversion plate 335, a third diversion plate 336 and a fourth diversion plate 337 are arranged in sequence. The upper and lower sides of the outer walls of the first diversion plate 334, the second diversion plate 335, the third diversion plate 336 and the fourth diversion plate 337 are rotatably connected to the outer wall of the rotating shaft 332 by opening avoidance holes. The outer walls of the first diversion plate 334, the second diversion plate 335, the third diversion plate 336 and the fourth diversion plate 337 are fixedly connected to the side end of the inner wall of the support feeding pipe 330. The first diversion plate 334, the second diversion plate 335, the third diversion plate 336 and the fourth diversion plate 337 are provided to increase the contact time between the second stirring blades 333 and the raw materials and improve the stirring effect. The shape of the first diversion plate 334 is a semi-circular solid, and the other half circle is evenly provided with grids. The shape of the second diversion plate 335 is circular and the outer wall is evenly provided with circular through holes.The set third flow dividing plate 336 is circular in shape and has square through holes evenly opened on its outer wall, while the set fourth flow dividing plate 337 is in the shape of a semi-circular solid, and hexagonal grooves are evenly opened on the other semi-circle. The set first flow dividing plate 334, second flow dividing plate 335, third flow dividing plate 336 and fourth flow dividing plate 337 can enable the raw materials to be discharged through different through holes, so that the raw materials can also be mixed when flowing through the first flow dividing plate 334, second flow dividing plate 335, third flow dividing plate 336 and fourth flow dividing plate 337, improving the mixing and stirring effect of the second stirring blade 333 on the materials;

[0028] A second mixing component is provided at the top end of the inner wall of the reaction kettle 100. The second mixing component includes an inner mixing tank 200. The inner mixing tank 200 is fixed at the top end of the inner wall of the reaction kettle 100. The upper end of the first stirring rod 120 passes through the inner mixing tank 200 and is rotatably connected to the top end of the inner wall of the reaction kettle 100. A collar 210 is fixedly sleeved on the outer wall of the first stirring rod 120 and located inside the inner mixing tank 200. First stirring blades 220 for stirring are fixed on both sides of the outer wall of the collar 210. Liquid discharge outlets 230 for discharging liquid are arranged at the bottom end of the inner wall of the inner mixing tank 200 in an annular array. Specifically, the raw materials discharged from the support feeding pipe 330 will flow into the inner mixing tank 200. When the set first stirring motor 110 drives the first stirring rod 120 to rotate, the set first stirring rod 120 will drive the first stirring blades 220 to rotate through the collar 210, so that the rotating first stirring blades 220 can mix and stir the raw materials flowing into the inner mixing tank 200 again, and the stirred raw materials will be discharged through the liquid discharge outlets 230.

[0029] The usage process of the present utility model is as follows: First, personnel can convey the raw materials for processing to the feed transfer tank 300 through the feed pipe 320. Some solid additives can be added into the reaction kettle 100 through the feeding pipe opened on the side end of the reaction kettle 100. The raw materials added into the feed transfer tank 300 will enter the support feeding pipe 330 and be conveyed along the support feeding pipe 330 into the inner mixing tank 200. During the process of the raw materials flowing in the support feeding pipe 330, the second stirring motor 331 arranged can be powered on to start the rotation of the rotating shaft 332. When the rotating shaft 332 rotates, it can mix and stir the raw materials through the second stirring blades 333. When the raw materials pass through the through holes on the first shunt plate 334, the second shunt plate 335, the third shunt plate 336, and the fourth shunt plate 337, since the positions of the through holes on the first shunt plate 334, the second shunt plate 335, the third shunt plate 336, and the fourth shunt plate 337 are in a staggered state, the raw materials can also be mixed. The raw materials discharged from the support feeding pipe 330 will flow into the inner mixing tank 200. When the first stirring motor 110 arranged drives the first stirring rod 120 to rotate, the first stirring rod 120 arranged will drive the first stirring blade 220 to rotate through the collar 210, so that the rotating first stirring blade 220 can mix and stir the raw materials flowing into the inner mixing tank 200 again. The stirred raw materials will be discharged into the reaction kettle 100 through the liquid outlet 230. The rotating first stirring rod 120 will continue to stir the raw materials, and the annular heating pipe can also heat the raw materials through the built-in resistance wire to ensure the normal production of silicone oil. The produced silicone oil can be discharged through the drain valve at the bottom of the reaction kettle 100.

[0030] The above are only the preferred embodiments of the present utility model. Any person skilled in the art may modify the present utility model by using the technical solutions described above or modify it into equivalent technical solutions. Therefore, any simple modification or equivalent replacement made according to the technical solutions of the present utility model falls within the scope of protection required by the present utility model.

Claims

1. A reactor for silicone oil processing, comprising a reactor (100), wherein a stirring component is arranged inside the reactor (100), and is characterized in that: Above the top of the outer wall of the reactor (100), a feed transfer tank (300) is provided. Between the bottom of the outer wall of the feed transfer tank (300) and the top of the inner wall of the reactor (100), a primary mixing component is provided. At the top of the inner wall of the reactor (100), a secondary mixing component is provided.

2. The reactor for silicone processing according to claim 1, wherein: The stirring component includes a first stirring rod (120). The first stirring rod (120) is arranged inside the reactor (100) and is rotationally connected to the centers of the upper and lower sides of the inner wall of the reactor (100) at its upper and lower ends. At the top of the outer wall of the reactor (100) and at the position corresponding to the first stirring rod (120), a first stirring motor (110) is fixed. The bottom output shaft of the first stirring motor (110) is fixedly connected to the upper end of the first stirring rod (120).

3. The reactor for silicone oil processing according to claim 1, characterized in that: On the outer wall of the feed transfer tank (300) and on the side far from the reactor (100), a feed pipe (320) for feeding is communicated. The primary mixing component includes a support feeding pipe (330). The upper and lower ends of the support feeding pipe (330) are communicated with the bottom of the inner wall of the feed transfer tank (300) and the top of the inner wall of the reactor (100).

4. A reactor for silicone oil processing according to claim 3, characterized in that: A plurality of the support feeding pipes (330) are uniformly arranged in an annular array. At the bottom of the inner wall of the feed transfer tank (300) and inside the support feeding pipe (330), a material distribution cone (310) is fixed. Inside the vertical section of the support feeding pipe (330), a rotating shaft (332) is rotationally connected to the inner wall.

5. A reactor for silicone oil processing according to claim 4, characterized in that: At the top of the outer wall of the support feeding pipe (330) and above the rotating shaft (332), a second stirring motor (331) is fixed. The bottom output shaft of the second stirring motor (331) is fixedly connected to the top of the rotating shaft (332). The upper end of the rotating shaft (332) is rotationally connected to the corresponding position of the inner wall at the top of the support feeding pipe (330).

6. The reactor for silicone oil processing according to claim 5, characterized in that: On the outer wall of the rotating shaft (332) and inside the support feeding pipe (330), a second stirring blade (333) is fixed. A plurality of the second stirring blades (333) are vertically arranged in a strip array. Between two adjacent second stirring blades (333) up and down, a first flow dividing disc (334), a second flow dividing disc (335), a third flow dividing disc (336), and a fourth flow dividing disc (337) are sequentially arranged. The upper and lower sides of the outer walls of the first flow dividing disc (334), the second flow dividing disc (335), the third flow dividing disc (336), and the fourth flow dividing disc (337) are rotationally connected to the outer wall of the rotating shaft (332) by opening avoidance holes. The outer walls of the first flow dividing disc (334), the second flow dividing disc (335), the third flow dividing disc (336), and the fourth flow dividing disc (337) are fixedly connected to the side end of the inner wall of the support feeding pipe (330).

7. A reactor for silicone oil processing according to claim 2, characterized in that: The second mixing component includes an internal mixing tank (200), the internal mixing tank (200) is fixed to the top end of the inner wall of the reaction kettle (100), the upper end of the first stirring rod (120) penetrates through the internal mixing tank (200) and is rotatably connected to the top end of the inner wall of the reaction kettle (100), and a collar (210) is fixedly sleeved on the outer wall of the first stirring rod (120) and located inside the internal mixing tank (200).

8. A reactor for silicone oil processing according to claim 7, characterized in that: On both sides of the outer wall of the collar (210), first stirring blades (220) for stirring are fixed, and liquid discharge outlets (230) for discharging liquid are arranged at the bottom end of the inner wall of the internal mixing tank (200) in an annular array manner.

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