Pressure-adjustable reaction kettle for paclobutrazol production

Abstract

The utility model discloses a pressure-adjustable reaction kettle for paclobutrazol production, which comprises a kettle body, a servo motor is mounted in the center of the top of the kettle body, the output end of the servo motor is connected with a driving rotating shaft, and a bevel gear I is mounted at the tail end of the driving rotating shaft; the gear box is connected to the lower part in the kettle body through a transverse plate; the driven rotating shaft is connected to the surface of the gear box through a bearing sleeve and extends to the inner wall of the kettle body, and a bevel gear I meshed with the bevel gear II is mounted at one end of the driven rotating shaft; and the cleaning plate is mounted at the tail end of the driving rotating shaft, and a cleaning brush is arranged at the bottom of the cleaning plate. According to the stirring device disclosed by the utility model, the bevel gear I, the bevel gear II and the driven rotating shaft are adopted, so that the auxiliary stirring rod fully stirs impurities which are gathered and precipitated at the bottom so as to improve the overall stirring speed, and the cleaning plate is adopted to clean the impurities accumulated on the surface of the cleaning plate so as to reduce the occurrence of the condition that the filter plate is blocked due to the accumulation of the impurities.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, in particular to a reaction kettle with adjustable pressure for producing paclobutrazol. Background Art

[0002] Reactor is a kind of equipment for chemical reaction, which is widely used in industrial production. Paclobutrazol is a plant growth regulator, which has the effects of delaying plant growth, inhibiting stem elongation, shortening internodes, promoting plant tillering, increasing plant stress resistance, and improving yield. In the synthesis process of paclobutrazol, the reactor is one of the most important equipment. Combined with the existing literature, a fully automatic refining reactor for synthesizing paclobutrazol (CN212468109U);

[0003] The existing technology has the following problems:

[0004] 1. During the reaction of the raw materials, as described in the reference patent, the raw materials are usually stirred by a stirring component, but impurities or solid particles may exist in the reaction. When the concentration of the product is higher than the saturation in the solution, these substances will aggregate and form precipitation, which will accumulate at the bottom and affect the stirring rate.

[0005] 2. In order to remove impurities, solid particles or other insoluble substances in the reaction mixture, the through grooves in the kettle are filtered through filter plates. However, as the filter plates are used more, impurities will inevitably accumulate on their surfaces, causing blockage of the filter plates.

[0006] To this end, we proposed a reactor for paclobutrazol production with adjustable pressure to solve the above-mentioned drawbacks. Utility Model Content

[0007] The utility model aims to solve the shortcomings in the prior art and proposes a reaction kettle for producing paclobutrazol with adjustable pressure.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A reaction kettle for producing paclobutrazol with adjustable pressure, comprising a kettle body, a servo motor is installed at the top center of the kettle body, an output end of the servo motor is connected to a driving shaft, and a bevel gear 1 is installed at the end of the driving shaft;

[0010] A gear box connected to the lower interior of the kettle body through a transverse plate;

[0011] A driven rotating shaft is connected to the surface of the gear box through a bearing sleeve and extends to the inner wall of the kettle body, and a bevel gear 1 meshing with bevel gear 2 is installed at one end of the driven rotating shaft;

[0012] A cleaning plate is installed at the end of the active rotating shaft, and a cleaning brush is arranged at the bottom of the cleaning plate.

[0013] Preferably, the kettle body further comprises:

[0014] A support frame installed below the surface of the kettle body;

[0015] A visual window, which is arranged on the surface of the kettle body;

[0016] A pressure gauge is installed on the top of the kettle body.

[0017] Preferably, the kettle body further comprises:

[0018] A feed inlet, which is installed on the top of the kettle body;

[0019] The discharge port is installed at the bottom of the kettle body, and a control valve is installed on the surface of the discharge port.

[0020] Preferably, the kettle body further comprises:

[0021] A pressure regulating mechanism, which is installed on the top of the kettle body;

[0022] a threaded post extending through and engaging the top of the pressure regulating mechanism;

[0023] A sealing plug is installed at the end of the threaded column in a cone shape.

[0024] Preferably, the pressure regulating mechanism further comprises:

[0025] A rubber seat installed inside the pressure regulating mechanism;

[0026] An air inlet is arranged at the bottom center of the pressure regulating mechanism and is connected with the kettle body.

[0027] Preferably, an electric heating tube for increasing the internal temperature is installed inside the kettle body, and a filter plate for filtering raw materials is installed below the inside of the kettle body, and the filter plate is located below the cleaning plate.

[0028] Preferably, main stirring rods for stirring the raw materials are equidistantly mounted on the surface of the active rotating shaft, and a plurality of groups of auxiliary stirring rods are symmetrically mounted on the surface of the driven rotating shaft.

[0029] Compared with the prior art, the beneficial effects of the utility model are:

[0030] (1) The utility model adopts bevel gear 1, bevel gear 2 and a driven shaft. The servo motor drives bevel gear 1 to rotate through the driving shaft. When bevel gear 1 rotates, it meshes with bevel gear 2 and drives the driven shafts on both sides to rotate, so that the auxiliary stirring rod can fully stir the impurities that have accumulated and settled at the bottom, so as to improve the overall stirring rate.

[0031] (2) The utility model adopts a cleaning plate. The cleaning plate rotates inside the kettle body following the active rotating shaft driven by the servo motor. The cleaning brush at the bottom of the cleaning plate continuously contacts the surface of the filter plate during the rotation process to clean the impurities accumulated on the surface, thereby reducing the occurrence of filter plate clogging due to the accumulation of impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below.

[0033] Figure 1 This is a schematic diagram of the overall structure of a reactor for producing paclobutrazol with adjustable pressure proposed by the utility model;

[0034] Figure 2 This is a schematic diagram of the front cross-section structure of a reactor body for producing paclobutrazol with adjustable pressure proposed by the utility model;

[0035] Figure 3 The utility model provides a reactor for producing paclobutrazol with adjustable pressure. Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0036] Figure 4 This is a schematic diagram of the gear box structure of a reactor for producing paclobutrazol with adjustable pressure proposed by the utility model;

[0037] Figure 5 The utility model discloses a pressure regulating mechanism structure diagram of a reactor for producing paclobutrazol with adjustable pressure.

[0038] Legend:

[0039] 1. Kettle body; 2. Support frame; 3. Visual window; 4. Feed inlet; 5. Servo motor; 6. Pressure gauge; 7. Pressure regulating mechanism; 8. Electric heating tube; 9. Active rotating shaft; 10. Main stirring rod; 11. Discharge port; 12. Gear box; 13. Filter plate; 14. Bevel gear 1; 15. Bevel gear 2; 16. Driven rotating shaft; 17. Auxiliary stirring rod; 18. Cleaning plate; 19. Threaded column; 20. Sealing plug; 21. Rubber seat; 22. Air inlet. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0041] Example: Figure 1 As shown, a reactor for producing paclobutrazol with adjustable pressure is used. The servo motor 5 used in the reactor is the 1FK7083 model of the Siemens Simotics S-1FK7 series, which adopts a high-efficiency and low-inertia design, can provide high acceleration, high dynamic response and precise position control, and adopts a multi-stage reducer and a special bearing structure, which can withstand large radial and axial loads and maintain high operating stability and reliability; the support frame 2 is used to support the whole, open the sealing cover to pour the raw materials from the feed port 4 into the reactor body 1 for reaction, and the viewing window 3 is tempered glass, which can directly observe the reaction process inside the reactor body 1 and understand the reaction progress, liquid level, material status and other information.

[0042] like Figure 2 , Figure 3 and Figure 4 As shown, after the raw materials enter the kettle body 1, the electric heating tube 8 operates to convert electrical energy into thermal energy to increase the internal temperature of the kettle body 1. At the same time, the servo motor 5 operates to drive the active shaft 9 at the output end to rotate, and multiple sets of main stirring rods 10 equidistant on the surface of the active shaft 9 stir the incoming raw materials accordingly. The gear box 12 is fixed to the inside of the kettle body 1 through multiple sets of cross bars, which protects the internal bevel gear 14 and bevel gear 2 15. Since the bevel gear 14 is located inside the gear box 12 and meshes with the two sets of bevel gear 2 15, the bevel gear 14 follows the rotation of the active shaft 9 to drive the bevel gear 2 15 to rotate inside the kettle body 1 along with the bearing sleeve, and the multiple sets of auxiliary gears connected on its surface The stirring rod 17 rotates at the same time to stir the material precipitated at the bottom and fully mix the reaction materials to ensure the uniformity and stability of the reactants during the reaction. The filter plate 13 below can intercept impurities such as solid particles in the reaction mixture. At the same time, the cleaning plate 18 is located above the filter plate 13 and rotates with the active shaft 9, and the cleaning brush on one side of the cleaning plate 18 rotates and contacts the surface of the filter plate 13 to loosen and disperse the impurities attached to the filter plate 13, thereby reducing the blockage of the filter plate 13. When the reaction of the internal material is completed, the control valve can be opened to discharge the reacted material from the discharge port 11, which is convenient for personnel to collect.

[0043] As 1 and Figure 5As shown, the pressure can be adjusted according to actual needs. The threaded column 19 is rotated counterclockwise, and the sealing plug 20 follows the threaded column 19 to rotate and move upward, and is separated from the rubber seat 21. A small amount of gas will flow into the kettle body 1 and enter the pressure regulating mechanism 7 from the air inlet 22 and be discharged. At the same time, the pressure gauge 6 on one side is observed. When the pressure is adjusted to a suitable pressure, the threaded column 19 can be rotated clockwise. The threaded column 19 drives the sealing plug 20 at the end to be embedded in the rubber seat 21 to prevent the gas from flowing out, thereby realizing the pressure adjustment.

[0044] Working principle: open the sealing cover and pour the raw materials into the kettle body 1 from the feed port 4, the electric heating tube 8 runs to convert electrical energy into thermal energy, and the temperature inside the kettle body 1 is increased. At the same time, the servo motor 5 runs to drive the active shaft 9 at the output end to rotate, and multiple sets of main stirring rods 10 equidistant on the surface of the active shaft 9 stir the incoming raw materials accordingly. The gear box 12 is fixed to the inside of the kettle body 1 through multiple sets of cross bars, and protects the internal bevel gear 14 and bevel gear 2 15. Since the bevel gear 14 is located inside the gear box 12 and meshes with the two sets of bevel gear 2 15, the bevel gear 14 follows the rotation of the active shaft 9 and drives the bevel gear 2 15 to rotate inside the kettle body 1 along with the bearing sleeve, and its surface The multiple groups of auxiliary stirring rods 17 connected to the surface rotate simultaneously to stir the material precipitated at the bottom and fully mix the reaction materials to ensure the uniformity and stability of the reactants during the reaction. The filter plate 13 below can intercept impurities such as solid particles in the reaction mixture. At the same time, the cleaning plate 18 is located above the filter plate 13 and rotates with the active shaft 9, and the cleaning brush on one side of the cleaning plate 18 rotates and contacts with the surface of the filter plate 13 to loosen and disperse the impurities attached to the filter plate 13, thereby reducing the blockage of the filter plate 13. When the reaction of the internal material is completed, the control valve can be opened to discharge the reacted material from the discharge port 11, which is convenient for personnel to collect.

[0045] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A reactor for producing paclobutrazol with adjustable pressure, characterized in that: include: A kettle body (1), wherein a servo motor (5) is installed at the center of the top of the kettle body (1), an output end of the servo motor (5) is connected to a driving shaft (9), and a bevel gear (14) is installed at the end of the driving shaft (9); A gear box (12) connected to the lower part of the kettle body (1) via a transverse plate; A driven rotating shaft (16) is connected to the surface of the gear box (12) through a bearing sleeve and extends to the inner wall of the kettle body (1), and a bevel gear 1 (14) meshing with a bevel gear 2 (15) is installed at one end of the driven rotating shaft (16); A cleaning plate (18) is mounted on the end of the active rotating shaft (9), and a cleaning brush is provided at the bottom of the cleaning plate (18).

2. The reaction kettle for producing paclobutrazol with adjustable pressure according to claim 1, characterized in that: The kettle body (1) further comprises: A support frame (2) installed below the surface of the kettle body (1); A visual window (3) arranged on the surface of the kettle body (1); A pressure gauge (6) is installed on the top of the kettle body (1).

3. The reaction kettle for producing paclobutrazol with adjustable pressure according to claim 1, characterized in that: The kettle body (1) further comprises: A feed inlet (4) installed on the top of the kettle body (1); A discharge port (11) is installed at the bottom of the kettle body (1), and a control valve is installed on the surface of the discharge port (11).

4. The reaction kettle for producing paclobutrazol with adjustable pressure according to claim 1, characterized in that: The kettle body (1) further comprises: A pressure regulating mechanism (7) installed on the top of the kettle body (1); A threaded post (19) extending through the top of the pressure regulating mechanism (7) and engaging therewith; A sealing plug (20) is installed at the end of the threaded column (19) in a cone shape.

5. The reaction kettle for producing paclobutrazol with adjustable pressure according to claim 4, characterized in that: The pressure regulating mechanism (7) further comprises: A rubber seat (21) installed inside the pressure regulating mechanism (7); An air inlet (22) is provided at the center of the bottom of the pressure regulating mechanism (7) and is connected to the kettle body (1).

6. The reaction kettle for producing paclobutrazol with adjustable pressure according to claim 1, characterized in that: An electric heating pipe (8) for increasing the internal temperature is installed inside the kettle body (1), and a filter plate (13) for filtering raw materials is installed below the inside of the kettle body (1), and the filter plate (13) is located below the cleaning plate (18).

7. The reaction kettle for producing paclobutrazol with adjustable pressure according to claim 1, characterized in that: Main stirring rods (10) for stirring the raw materials are equidistantly mounted on the surface of the active rotating shaft (9), and a plurality of groups of auxiliary stirring rods (17) are symmetrically mounted on the surface of the driven rotating shaft (16).

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