Batching device for 2-vinylpyridine production

Abstract

The utility model discloses a 2 -vinyl pyridine production is with batching device relates to 2 -vinyl pyridine production technical field, the utility model discloses a reaction kettle main part, the side and the bottom of reaction kettle main part are fixed with feed inlet and discharge gate respectively, the top of reaction kettle main part is provided with the central rotation hole. The utility model discloses through starting control motor, can drive hollow rotating shaft and stirring vane to and fro rotation, and the material in the reaction kettle main part is back and forth staggered stirring, and simultaneously, also can drive lengthened rotating shaft and spiral blade together rotation, the raw material in the reaction kettle bottom or discharge gate place is continuously conveyed upward, thereby can let material will be in the reaction kettle more complex and comprehensive stirring, fully breaks the flow dead zone that can exist in the reaction kettle, greatly enhanced the mixing effect of material, makes material can fully intermingled mixing, effectively improved the reaction rate and conversion rate of material, provides powerful guarantee for efficient production 2 -vinyl pyridine.

Description

Technical Field

[0001] This utility model relates to the field of 2-vinylpyridine production technology, and specifically to a batching device for 2-vinylpyridine production. Background Technology

[0002] 2-Vinylpyridine is an organic compound with the chemical formula C7H7N. It has shown great application value in the industrial and pharmaceutical fields. It is mainly used to synthesize styrene-butadiene-pyridine latex, and it is also a key raw material for manufacturing drugs such as styrene-butadiene and beta-dimethicone hydrochloride. In the production of 2-vinylpyridine, various raw materials, catalysts and other ingredients are usually put into a reaction vessel or mixing tank and thoroughly stirred and mixed to ensure that the reaction proceeds uniformly.

[0003] Currently, most commercially available reactors use unidirectional rotating agitators to drive the material to flow axially, thus achieving radial mixing. However, this method has significant limitations, resulting in relatively poor radial mixing. This leads to the formation of flow dead zones within the reactor, such as in corners or near the reactor wall at the far end of the agitator blades. Material struggles to reach these areas, preventing thorough and uniform mixing within the reactor. This significantly impacts the chemical reaction, ultimately resulting in low reaction rates and conversion rates, necessitating optimization and improvement. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a batching device for the production of 2-vinylpyridine, which solves the problem that the proposed method of using a stirring blade to drive the material to generate axial flow and achieve radial mixing can easily lead to the formation of some flow dead zones in the reactor, resulting in the material not being fully and evenly mixed.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a batching device for the production of 2-vinylpyridine, comprising a reactor body, with an inlet and an outlet fixedly provided on the side and bottom of the reactor body, respectively; a central rotating hole opened at the top of the reactor body, with a hollow rotating shaft rotatably installed inside the central rotating hole; multiple stirring blades uniformly fixedly installed on the hollow rotating shaft located inside the reactor body; a connecting rotating shaft rotatably installed at the top of the reactor body, with a sector gear fixedly sleeved on the connecting rotating shaft; a driven gear fixedly sleeved on the hollow rotating shaft; the sector gear meshing with the driven gear; a mounting box fixedly installed at the top of the reactor body; a control motor fixedly installed at the top of the mounting box; the output end of the control motor extending into the mounting box and fixedly installed with a control rotating shaft; and a drive assembly for driving the connecting rotating shaft to rotate back and forth connected to the control rotating shaft.

[0006] Preferably, the drive assembly includes a connecting arm fixedly mounted on the bottom end of the control shaft, an eccentric drive column fixedly mounted on the bottom of the connecting arm, a connecting rocker arm fixedly mounted on the top end of the connecting shaft, a strip-shaped sliding hole being formed at the top of the connecting rocker arm, and the eccentric drive column being adapted to be installed in the strip-shaped sliding hole.

[0007] Preferably, an extended rotating shaft is rotatably mounted on the top inner wall of the mounting box. The bottom end of the extended rotating shaft passes through the hollow rotating shaft and extends into the discharge port. A spiral blade adapted to the discharge port is fixedly sleeved on the extended rotating shaft. A transmission unit for driving the extended rotating shaft to rotate synchronously is connected to the control rotating shaft.

[0008] Preferably, the transmission unit includes two transmission pulleys, which are respectively fixedly sleeved on the control shaft and the extended shaft, and a transmission belt is tensioned and sleeved on both transmission pulleys.

[0009] Preferably, a heating jacket is fixedly installed on the outer periphery of the reactor body, and a fluid inlet and a fluid outlet are fixedly installed on the heating jacket.

[0010] Preferably, the bottom of the heating jacket is uniformly fixedly equipped with multiple support legs, the bottom end of each support leg is fixedly equipped with a fixing plate, and the top of the fixing plate is uniformly provided with multiple bolt holes.

[0011] The beneficial effects of this utility model are as follows: 1. This utility model has a reasonable structure. When the control motor is started, it drives the connecting shaft and sector gear to rotate back and forth through the control shaft, connecting arm, eccentric drive column and connecting rocker arm. The rotation of the sector gear drives the hollow shaft and stirring blade to rotate back and forth through the driven gear. This allows the material in the reactor body to be stirred back and forth in an alternating manner. Compared with the traditional unidirectional stirring method, the alternating stirring method allows the material to be subjected to a more complex and comprehensive stirring effect in the reactor body. The material no longer flows in a single direction, but under the alternating stirring, the flow dead zone that may exist in the reactor body is fully broken, which greatly enhances the mixing effect of the material. This makes the contact between material molecules more frequent and uniform, effectively improving the reaction rate and conversion rate of the material, and providing a strong guarantee for the efficient production of 2-vinylpyridine. 2. In this utility model, when the control shaft rotates, the extended shaft and the spiral blades will also rotate together through the transmission pulley and transmission belt. The rotation of the spiral blades will exert an upward thrust on the raw materials in the discharge port and the raw materials deposited at the bottom of the reactor body, thereby continuously conveying these raw materials that were originally at the bottom or discharge port upward, so that the materials in the reactor can be fully mixed, further improving the reaction rate and conversion rate of the materials, and the reaction effect is better. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a partial cross-sectional structural diagram of the reactor body and heating jacket in this utility model; Figure 3 This is an enlarged three-dimensional structural diagram of the control motor, drive assembly, and hollow rotating shaft in this utility model; Figure 4 This is an exploded structural diagram of the hollow rotating shaft and the extended rotating shaft in this utility model.

[0013] Reference numerals in the attached drawings: 1. Reactor body; 2. Mounting box; 3. Control motor; 4. Heating jacket; 5. Support leg; 6. Fixing plate; 7. Hollow rotating shaft; 8. Stirring blade; 9. Connecting rotating shaft; 10. Sector gear; 11. Driven gear; 12. Control rotating shaft; 13. Connecting rotating arm; 14. Eccentric drive column; 15. Connecting swing arm; 16. Extended rotating shaft; 17. Spiral blade; 18. Transmission pulley; 19. Transmission belt. Detailed Implementation

[0014] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0015] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 -Appendix Figure 4 The present invention will be further described below.

[0016] A batching device for the production of 2-vinylpyridine includes a reactor body 1. The reactor body 1 has an inlet and an outlet fixed to its side and bottom, respectively. It should be noted that in actual use, both the inlet and outlet are connected to conveying pipes equipped with valves. By opening or closing the valves, the start / stop and flow rate of the material conveying can be controlled. For those skilled in the art, the operation and use methods are standard industry knowledge and will not be described in detail here. A central rotating hole is opened at the top of the reactor body 1. A hollow rotating shaft 7 is rotatably mounted in the central rotating hole via bearings. Multiple stirring blades 8 are evenly fixedly mounted on the hollow rotating shaft 7 located inside the reactor body 1. A connecting rotating shaft 9 is rotatably mounted on the top of the reactor body 1. A sector gear 10 is fixedly sleeved on the connecting rotating shaft 9. A driven gear 11 is fixedly sleeved on the idle shaft 7. A sector gear 10 meshes with the driven gear 11. An installation box 2 is fixedly installed on the top of the reactor body 1. The hollow shaft 7, the connecting shaft 9, and the sector gear 10 are all located inside the installation box 2. A control motor 3 is fixedly installed on the top of the installation box 2. The output end of the control motor 3 extends into the installation box 2 and is fixedly installed on the control shaft 12. A drive assembly for driving the connecting shaft 9 to rotate back and forth is connected to the control shaft 12. The drive assembly includes a connecting arm 13 fixedly installed on the bottom end of the control shaft 12. An eccentric drive column 14 is fixedly installed on the bottom of the connecting arm 13. A connecting rocker arm 15 is fixedly installed on the top of the connecting shaft 9. A strip-shaped sliding hole is opened on the top of the connecting rocker arm 15. The eccentric drive column 14 is adapted to be installed in the strip-shaped sliding hole.

[0017] Specifically, when the control motor 3 is started, it drives the control shaft 12 to rotate. This rotation, via the connecting arm 13, causes the eccentric drive column 14 to rotate around its axis. The eccentric drive column 14's rotation, constrained by the slotted hole, causes the connecting rocker arm 15 to swing back and forth. This swinging motion further drives the connecting shaft 9 and the sector gear 10 to rotate back and forth. The sector gear 10's rotation, in turn, drives the hollow shaft 7 to rotate back and forth via the driven gear 11 it meshes with. The hollow shaft 7's rotation... The stirring blades 8 agitate the material in the reactor body 1 back and forth. Compared with the traditional unidirectional stirring method, the back and forth stirring method allows the material to be subjected to a more complex and comprehensive stirring effect in the reactor body 1. The material no longer flows in just one direction, but under the back and forth stirring, the flow dead zones that may exist in the reactor body 1 are fully broken, which greatly enhances the mixing effect of the material. This makes the contact between material molecules more frequent and uniform, effectively improving the reaction rate and conversion rate of the material, and providing a strong guarantee for the efficient production of 2-vinylpyridine.

[0018] like Figure 2 and Figure 4As shown, an extended shaft 16 is rotatably mounted on the top inner wall of the mounting box 2. The bottom end of the extended shaft 16 passes through the hollow shaft 7 and extends into the discharge port. A spiral blade 17 adapted to the discharge port is fixedly sleeved on the extended shaft 16. A transmission unit for driving the extended shaft 16 to rotate synchronously is connected to the control shaft 12.

[0019] Specifically, when the control shaft 12 starts to rotate, it will drive the extended shaft 16 to rotate synchronously through the transmission unit. The rotation of the extended shaft 16 will drive the spiral blade 17 to rotate together. During the continuous rotation of the spiral blade 17, an upward thrust will be applied to the raw materials in the discharge port and the raw materials deposited at the bottom of the reactor body 1, causing these raw materials that were originally at the bottom or discharge port to be continuously transported upward, so that the materials in the reactor can be fully mixed, further improving the reaction rate and conversion rate of the materials.

[0020] like Figure 3 As shown, the transmission unit includes two transmission pulleys 18, which are fixedly sleeved on the control shaft 12 and the extended shaft 16 respectively. A transmission belt 19 is tensioned and sleeved on both transmission pulleys 18.

[0021] Specifically, when the control shaft 12 rotates, it will drive one of the transmission pulleys 18 connected to it to rotate. Since the transmission belt 19 is tightly fitted between the two transmission pulleys 18, the transmission belt 19 starts to run due to the friction between the belt and the pulley, which can drive the other transmission pulley 18 to rotate together, and then drive the extended shaft 16 connected to it to rotate synchronously, thus playing the role of transmission.

[0022] like Figure 2 As shown, a heating jacket 4 is fixedly installed on the outer periphery of the reactor body 1. A fluid inlet and a fluid outlet are fixedly installed on the heating jacket 4. Through the coordinated arrangement of the heating jacket 4, the fluid inlet, and the fluid outlet, hot fluid can be injected into the heating jacket 4 through the fluid inlet during use. The hot fluid flows within the heating jacket 4, continuously transferring heat to the reactor body 1, thereby achieving the heating function of the reactor body 1 and providing a suitable temperature environment for the reaction.

[0023] like Figure 1 As shown, multiple support legs 5 are evenly fixedly installed at the bottom of the heating jacket 4, and a fixing plate 6 is fixedly installed at the bottom end of the support legs 5. Multiple bolt holes are evenly opened on the top of the fixing plate 6. Through the combination of the fixing plate 6 and the bolt holes, it is convenient for the staff to use anchor bolts or other means to fix the reactor body 1 to the ground, so that it can operate stably.

[0024] In summary: When using this invention, various raw materials and catalysts for the production of 2-vinylpyridine are first added to the reactor body 1 through the feed inlet in proportion. Then, hot fluid is injected into the heating jacket 4 through the fluid inlet until the reactor body 1 is heated to a suitable reaction temperature. During this process, the control motor 3 is started. The operation of the control motor 3 will drive the control shaft 12 to rotate. The rotation of the control shaft 12 will drive the eccentric drive column 14 to rotate around the axis of the control shaft 12 through the connecting arm 13. The eccentric drive column 14 rotates in a circular motion, which, constrained by the strip-shaped sliding hole, causes the connecting rocker arm 15 to swing back and forth. The swinging of the connecting rocker arm 15 further drives the connecting shaft 9 and the sector gear 10 to rotate back and forth. The rotation of the sector gear 10, in turn, drives the hollow shaft 7 to rotate back and forth through the driven gear 11 meshing with it. The rotation of the hollow shaft 7 causes the stirring blades 8 to stir the material in the reactor body 1 in a back-and-forth alternating manner. At this time, the material is subjected to more complex and comprehensive stirring in the reactor body 1. This process ensures that the material no longer flows in a single direction, but rather, through repeated stirring, it effectively breaks down any dead zones that may exist within the reactor body 1. This results in more frequent and uniform contact between material molecules. Simultaneously, the rotation of the control shaft 12 also drives one of the connected drive pulleys 18 to rotate. Since the drive belt 19 is tightly fitted between the two drive pulleys 18, the friction between the belt and the pulleys causes the drive belt 19 to start rotating, which in turn drives the other drive pulley 18 to rotate. This, in turn, drives the extended shaft 16 connected to it to rotate synchronously. The rotation of the extended shaft 16 drives the spiral blades 17 to rotate as well. The rotation of the spiral blades 17 applies an upward thrust to the raw materials in the discharge port and those deposited at the bottom of the reactor body 1, causing these raw materials, which were originally at the bottom or discharge port, to be continuously transported upwards. This allows the materials in the reactor to fully mix and blend, greatly enhancing the mixing effect and effectively improving the reaction rate and conversion rate of the materials, providing a strong guarantee for the efficient production of 2-vinylpyridine.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

A batching device for the production of 1,2-vinylpyridine, comprising a reactor body (1), wherein an inlet and an outlet are respectively fixed to the side and bottom of the reactor body (1), characterized in that, The reactor body (1) has a central rotating hole at the top, and a hollow rotating shaft (7) is rotatably installed in the central rotating hole. Multiple stirring blades (8) are uniformly fixedly installed on the hollow rotating shaft (7) located in the reactor body (1). A connecting rotating shaft (9) is rotatably installed on the top of the reactor body (1). A sector gear (10) is fixedly sleeved on the connecting rotating shaft (9). A driven gear (11) is fixedly sleeved on the hollow rotating shaft (7). The sector gear (10) meshes with the driven gear (11). A mounting box (2) is fixedly installed on the top of the reactor body (1). A control motor (3) is fixedly installed on the top of the mounting box (2). The output end of the control motor (3) extends into the mounting box (2) and a control rotating shaft (12) is fixedly installed thereon. A drive assembly for driving the connecting rotating shaft (9) to rotate back and forth is connected to the control rotating shaft (12).

2. The batching apparatus for producing 2-vinylpyridine according to claim 1, characterized in that, The drive assembly includes a connecting arm (13) fixedly mounted on the bottom end of the control shaft (12), an eccentric drive column (14) fixedly mounted on the bottom of the connecting arm (13), a connecting rocker arm (15) fixedly mounted on the top end of the connecting shaft (9), a strip-shaped sliding hole being opened on the top of the connecting rocker arm (15), and the eccentric drive column (14) being adapted to be installed in the strip-shaped sliding hole.

3. The batching apparatus for producing 2-vinylpyridine according to claim 1, characterized in that, An extended shaft (16) is rotatably mounted on the top inner wall of the mounting box (2). The bottom end of the extended shaft (16) passes through the hollow shaft (7) and extends into the discharge port. A spiral blade (17) adapted to the discharge port is fixedly sleeved on the extended shaft (16). A transmission unit for driving the extended shaft (16) to rotate synchronously is connected to the control shaft (12).

4. The batching apparatus for producing 2-vinylpyridine according to claim 3, characterized in that, The transmission unit includes two transmission pulleys (18), which are respectively fixedly sleeved on the control shaft (12) and the extended shaft (16), and a transmission belt (19) is tensioned and sleeved on both transmission pulleys (18).

5. The batching apparatus for producing 2-vinylpyridine according to claim 1, characterized in that, A heating jacket (4) is fixedly installed on the outer periphery of the reactor body (1), and a fluid inlet and a fluid outlet are fixedly installed on the heating jacket (4).

6. The batching apparatus for producing 2-vinylpyridine according to claim 5, characterized in that, The bottom of the heating jacket (4) is uniformly fixedly equipped with multiple support legs (5), and the bottom end of the support legs (5) is fixedly equipped with a fixing plate (6). The top of the fixing plate (6) is uniformly provided with multiple bolt holes.

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