Reaction device for preparing acetaminophen

Abstract

The utility model discloses a reaction device for preparing acetaminophen, which relates to the technical field of reaction devices and comprises a reaction structure, the reaction structure comprises a tank body, a servo motor is fixedly connected to the top of a support, a rotating rod is fixedly connected to the output end of the servo motor, and a connecting plate is fixedly connected to the bottom of the outer wall of the rotating rod. One side of the connecting plate is fixedly connected with a scraper, the top of the outer wall of the rotating rod is fixedly connected with a driving gear, one side of the driving gear is in meshed connection with a driven gear, the bottom of the driven gear is fixedly connected with a rotating shaft, the bottom of the rotating shaft is fixedly connected with a fixing block, and the bottom of the fixing block is fixedly connected with a stirring rod. A driving gear and a driven gear are matched with each other to drive a fixed block and a stirring rod to rotate, and a scraper arranged at the bottom of a rotating rod is used for cleaning the bottom of the tank body, so that the problems of easiness in causing precipitation at the bottom, insufficient reaction and influence on the subsequent reaction purity are solved, and the reaction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction devices, in particular to a reaction device for preparing paracetamol. Background Art

[0002] Paracetamol (PAP), as a commonly used non-anti-inflammatory antipyretic analgesic, has a wide range of applications in the medical field. Its preparation process involves multiple chemical reaction steps, and the acylation reaction is one of the key steps. In order to prepare paracetamol efficiently and safely, the design and selection of the reaction device are particularly important.

[0003] Chinese Patent CN210449196U discloses a reaction device for preparing ethylbenzene, including a reaction main body. A ring plate is fixedly sleeved on the outer side of the bottom of the reaction main body. Four fixed seats are welded on the ring plate. The tops on both sides of the ring plate are fixedly installed with second motor boxes through screws. The top of the reaction main body is provided with a top cover. The middle of the top of the top cover is fixedly installed with a first motor box through screws. The output end of the motor in the first motor box is in transmission connection with a transmission rod. Feed hoppers are installed on both sides of the edge of the top of the top cover. A groove is formed in the edge of the top of the reaction main body. The bottom end of the reaction main body is provided with a discharge pipe. Multiple support rods are welded to the bottom end of the ring plate. By installing the top cover on the reaction main body on an electric lifting rod, the top cover can be lifted from the reaction main body by using the electric lifting rod, with a high degree of automation and convenient for flushing the inside of the reaction main body. However, this structure has certain defects. The stirring and mixing effect is not ideal. Since the physical state of paracetamol is powdery, it is easy to cause precipitation at the bottom, resulting in insufficient reaction and affecting the purity of the subsequent reaction, and it is difficult to meet the usage requirements of users.

[0004] Therefore, in order to solve such problems, we propose a reaction device for preparing paracetamol. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems in the prior art that the structure has certain defects, the stirring and mixing effect is not ideal. Since the physical state of paracetamol is powdery, it is easy to cause precipitation at the bottom, resulting in insufficient reaction and affecting the purity of the subsequent reaction, and it is difficult to meet the usage requirements of users. A reaction device for preparing paracetamol is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A reaction device for preparing paracetamol, including a reaction structure. The reaction structure includes a tank body. A feeding member is fixedly connected to the outer wall of the tank body. A discharging member is fixedly connected to the bottom of the tank body. A valve is fixedly connected to the discharging member. A top plate is fixedly connected to the top of the tank body. A bracket is fixedly connected to the top of the top plate;

[0007] A servo motor is fixedly connected to the top of the bracket. The output end of the servo motor is fixedly connected to a rotating rod. The bottom of the outer wall of the rotating rod is fixedly connected to a connecting plate. One side of the connecting plate is fixedly connected to a scraper. The top of the outer wall of the rotating rod is fixedly connected to a driving gear. One side of the driving gear is meshed with a driven gear. The bottom of the driven gear is fixedly connected to a rotating shaft. The bottom of the rotating shaft is fixedly connected to a fixing block. The bottom of the fixing block is fixedly connected to a stirring rod. The servo motor drives the rotating rod to rotate. The rotating rod drives the connecting plate and the scraper to rotate around the rotating rod. While the rotating rod rotates, it drives the driving gear to rotate. The driving gear drives the driven gear to rotate. The driven gear drives the fixing block and the stirring rod to rotate.

[0008] Preferably, a support structure is provided at the bottom of the tank body. The support structure includes a bottom plate fixedly connected to the bottom of the tank body. Legs are fixedly connected to the bottom of the bottom plate. A controller is fixedly connected to the top of the bottom plate.

[0009] Preferably, the output end of the servo motor is fixedly connected to a rotating rod. The bottom of the outer wall of the rotating rod is fixedly connected to a connecting plate. One side of the connecting plate is fixedly connected to a scraper.

[0010] Preferably, one side of the driving gear is meshed with a driven gear. The bottom of the driven gear is fixedly connected to a rotating shaft. The bottom of the rotating shaft is fixedly connected to a fixing block.

[0011] Preferably, legs are fixedly connected to the bottom of the bottom plate.

[0012] Preferably, a servo motor is fixedly connected to the top of the bracket. A controller is fixedly connected to the top of the bottom plate.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, the driving gear and the driven gear are mutually matched to drive the fixing block and the stirring rod to rotate. The number of the stirring rods is set to two, so that the stirring is more sufficient. The scraper arranged at the bottom of the rotating rod cleans the bottom of the tank body, avoiding the problem that it is easy to cause precipitation at the bottom, resulting in insufficient reaction and affecting the purity of the subsequent reaction. A valve and a discharging member are provided. The discharging member discharges paracetamol. The valve controls the discharging speed to prevent blockage, thereby improving the reaction efficiency. The structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional schematic diagram of a reaction device for preparing paracetamol proposed by the utility model;

[0016] Figure 2 is a three-dimensional exploded view of a reaction device for preparing paracetamol proposed by the utility model;

[0017] Figure 3 This is a three-dimensional exploded view of the chip removal structure of a reaction device for the preparation of paracetamol proposed by the present utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the backing plate of a reaction device for the preparation of paracetamol proposed by the present utility model.

[0019] Legend description:

[0020] 1. Reaction structure; 11. Tank body; 111. Feeding part; 112. Discharging part; 113. Valve; 12. Top plate; 121. Bracket; 13. Servo motor; 131. Rotating rod; 132. Connecting plate; 133. Scraper; 14. Driving gear; 141. Driven gear; 142. Rotating shaft; 143. Fixed block; 144. Stirring rod; 2. Support structure; 21. Bottom plate; 22. Leg; 23. Controller. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] Refer to Figures 1-4, an embodiment provided by the present utility model: a reaction device for the preparation of paracetamol, including a reaction structure 1. The reaction structure 1 includes a tank body 11, and the function of the tank body 11 is a reaction tank. A feeding member 111 is fixedly connected to the outer wall of the tank body 11, and the function of the feeding member 111 is to feed materials. A discharging member 112 is fixedly connected to the bottom of the tank body 11, and the function of the discharging member 112 is to discharge materials. A valve 113 is fixedly connected to the discharging member 112, and the function of the valve 113 is to control the opening and closing of discharging. A top plate 12 is fixedly connected to the top of the tank body 11, and the function of the top plate 12 is to fix the support 121. A support 121 is fixedly connected to the top of the top plate 12, and the function of the support 121 is to fix the servo motor 13;

[0024] A servo motor 13 is fixedly connected to the top of the support 121, and the function of the servo motor 13 is to drive the rotating rod 131. The output end of the servo motor 13 is fixedly connected to the rotating rod 131, and the function of the rotating rod 131 is to drive the connecting plate 132 to rotate. A connecting plate 132 is fixedly connected to the bottom of the outer wall of the rotating rod 131, and the function of the connecting plate 132 is to fix the scraper 133. A scraper 133 is fixedly connected to one side of the connecting plate 132, and the function of the scraper 133 is to remove the sediment at the bottom of the tank body 11. A driving gear 14 is fixedly connected to the top of the outer wall of the rotating rod 131, and the function of the driving gear 14 is to drive the driven gear 141 to rotate. A driven gear 141 is meshed and connected to one side of the driving gear 14, and the function of the driven gear 141 is to drive the rotating shaft 142 to rotate. A rotating shaft 142 is fixedly connected to the bottom of the driven gear 141, and the function of the rotating shaft 142 is to drive the fixing block 143 to rotate. A fixing block 143 is fixedly connected to the bottom of the rotating shaft 142, and the function of the fixing block 143 is to drive the stirring rod 144 to rotate. A stirring rod 144 is fixedly connected to the bottom of the fixing block 143, and the function of the stirring rod 144 is to stir for full reaction.

[0025] The servo motor 13 is driven to drive the rotating rod 131 to rotate. The rotating rod 131 drives the connecting plate 132 and the scraper 133 to rotate around the rotating rod 131. While the rotating rod 131 rotates, it drives the driving gear 14 to rotate. The driving gear 14 drives the driven gear 141 to rotate. The driven gear 141 drives the fixing block 143 and the stirring rod 144 to rotate.

[0026] A support structure 2 is provided at the bottom of the tank body 11. The support structure 2 includes a bottom plate 21 fixedly connected to the bottom of the tank body 11, and the function of the bottom plate 21 is to install the reaction structure 1. Legs 22 are fixedly connected to the bottom of the bottom plate 21, and the function of the legs 22 is to support the whole device. A controller 23 is fixedly connected to the top of the bottom plate 21. The function of the controller 23 is to control the servo motor 13.

[0027] The output end of the servo motor 13 is fixedly connected to a rotating rod 131. The bottom of the outer wall of the rotating rod 131 is fixedly connected to a connecting plate 132. One side of the connecting plate 132 is fixedly connected to a scraper 133. The rotating rod 131 and the scraper 133 are fixedly connected through the connecting plate 132.

[0028] One side of the driving gear 14 is meshed with a driven gear 141. The bottom of the driven gear 141 is fixedly connected to a rotating shaft 142. The bottom of the rotating shaft 142 is fixedly connected to a fixing block 143. The driven gear 141 and the fixing block 143 are fixedly connected through the rotating shaft 142.

[0029] The bottom of the bottom plate 21 is fixedly connected to a leg 22. The tank body 11 and the leg 22 are fixedly connected through the bottom plate 21.

[0030] The top of the bracket 121 is fixedly connected to a servo motor 13. The top of the bottom plate 21 is fixedly connected to a controller 23. The servo motor 13 is electrically connected to the controller 23.

[0031] Working principle: First, place the acetaminophen to be reacted and water into the tank body 11 through the feeding member 111. Then start the servo motor 13. The servo motor 13 drives the rotating rod 131 to rotate. The rotating rod 131 drives the connecting plate 132 and the scraper 133 to rotate around the rotating rod 131 to process the bottom surface of the tank body 11 to prevent precipitation and insufficient reaction. While the rotating rod 131 rotates, it drives the driving gear 14 to rotate. The driving gear 14 drives the driven gear 141 to rotate. The driven gear 141 drives the fixing block 143 and the stirring rod 144 to rotate. The two stirring rods 144 fully stir the acetaminophen and water to make the reaction more comprehensive. After the reaction is completed, manually open the valve 113 and discharge the material through the discharging member 112. The structure is simple and easy to operate.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reaction device for preparing acetaminophen, comprising a reaction structure (1), characterized in that: The reaction structure (1) comprises a tank body (11), a feed piece (111) is fixedly connected to the outer wall of the tank body (11), a discharge piece (112) is fixedly connected to the bottom of the tank body (11), a valve (113) is fixedly connected to the discharge piece (112), a top plate (12) is fixedly connected to the top of the tank body (11), and a bracket (121) is fixedly connected to the top of the top plate (12); The top of the bracket (121) is fixedly connected to a servo motor (13), the output end of the servo motor (13) is fixedly connected to a rotating rod (131), the bottom of the outer wall of the rotating rod (131) is fixedly connected to a connecting plate (132), one side of the connecting plate (132) is fixedly connected to a scraper (133), the top of the outer wall of the rotating rod (131) is fixedly connected to a driving gear (14), one side of the driving gear (14) is meshingly connected to a driven gear (141), the bottom of the driven gear (141) is fixedly connected to a rotating shaft (142), the bottom of the rotating shaft (142) is fixedly connected to a fixed block (143), and the bottom of the fixed block (143) is fixedly connected to a stirring rod (144).

2. A reaction device for preparing acetaminophen according to claim 1, characterized in that: A support structure (2) is provided at the bottom of the tank body (11), the support structure (2) comprising a bottom plate (21) fixedly connected to the bottom of the tank body (11), a support leg (22) fixedly connected to the bottom of the bottom plate (21), and a controller (23) fixedly connected to the top of the bottom plate (21).

3. A reaction device for preparing acetaminophen according to claim 1, characterized in that: The rotating rod (131) and the scraper (133) are fixedly connected via a connecting plate (132).

4. A reaction device for preparing acetaminophen according to claim 1, characterized in that: The driven gear (141) and the fixed block (143) are fixedly connected via a rotating shaft (142).

5. A reaction device for preparing acetaminophen according to claim 2, characterized in that: The tank body (11) and the supporting legs (22) are fixedly connected via a bottom plate (21).

6. A reaction device for preparing acetaminophen according to claim 2, characterized in that: The servo motor (13) is electrically connected to the controller (23).

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