A vacuum drying apparatus for preparing pyrazole alcohol hydrochloride

Abstract

The utility model discloses a vacuum drying equipment for preparing pyrazole alcohol hydrochloride, including rack, mounting bracket, press down drive component, sealing element and vacuum pump, the mounting bracket is located the table surface of rack, the upper plate and lower plate are equipped respectively on the mounting bracket, press down drive component is located the mounting bracket, press down drive component includes cylinder, press down board and a group of guide rod, sealing element is located between press down board and lower plate, sealing element includes sealed peripheral wall and base, is equipped with the heating plate on the base, is equipped with pressure sensor and air pressure sensor on the heating plate, the lower surface of press down board is equipped with temperature -controlled probe, vacuum pump is located in the rack, the vacuum drying equipment for preparing pyrazole alcohol hydrochloride of the application, has designed multiple temperature -controlled probes, and the temperature of real -time monitoring vacuum drying environment, when pressure sensor reading no longer changes, namely dry completely, has improved preparation efficiency, simultaneously, the design of pressure -relief valve has prevented product to be blown away or equipment damage, has prolonged equipment life.

Description

Technical Field

[0001] This invention belongs to the field of chemical preparation, and specifically relates to a vacuum drying device for preparing pyrazolium hydrochloride. Background Technology

[0002] In the preparation of pyrazol hydrochloride, the material is extremely sensitive to temperature and pressure. Traditional vacuum drying equipment has many shortcomings, seriously affecting production efficiency and product quality. First, traditional equipment has poor sealing performance, resulting in frequent vacuum leaks, which not only reduces drying efficiency but also increases energy consumption and maintenance costs. Second, traditional equipment lacks real-time monitoring capabilities, making it impossible to accurately control temperature and determine whether drying is complete, leading to significant fluctuations in product quality.

[0003] Meanwhile, in terms of operation, traditional equipment relies heavily on manual intervention, which is complex and prone to errors, and has a low degree of automation. In terms of safety, traditional equipment lacks an effective pressure relief device during vacuum recovery, which can easily lead to equipment damage or even safety accidents.

[0004] Therefore, the above problems urgently need to be solved. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide a vacuum drying device for preparing pyrazol hydrochloride. It is designed with multiple temperature control probes to monitor the temperature of the vacuum drying environment in real time; in conjunction with a pressure sensor, drying is complete when the pressure sensor reading no longer changes, thus improving the preparation efficiency; at the same time, the design of the pressure relief valve prevents the product from being blown away or the equipment from being damaged, thus extending the service life of the equipment.

[0006] Technical Solution: To achieve the above objectives, this utility model provides a vacuum drying device for preparing pyrazolium hydrochloride, including a frame, a mounting frame, a downward pressure drive assembly, a sealing assembly, and a vacuum pump; the mounting frame is mounted on the platform of the frame; the mounting frame has an upper plate and a lower plate respectively; the lower plate is mounted on the platform of the frame; the upper plate is mounted above the lower plate by several columns; the design of the frame and mounting frame provides stable support for the equipment, ensuring that the equipment will not shake or shift during the drying process; the downward pressure drive assembly is mounted on the mounting frame; the downward pressure drive assembly includes a cylinder, a downward pressure plate, and a set of guide rods; the cylinder is mounted on the upper plate; the downward pressure plate is located at the output end of the cylinder; the lower end of the guide rod is fixedly connected to the downward pressure plate, and the upper end is connected to the upper surface of the upper plate through a bushing; the downward movement of the downward pressure plate can be easily realized by the extension and retraction of the cylinder, thereby completing the sealing operation; the sealing assembly is located between the downward pressure plate and the lower plate; the sealing assembly includes a sealing peripheral wall and a base; the sealing peripheral wall and the lower plate are connected to the lower plate. The lower surface of the pressure plate is connected; the base is located on the lower plate; the sealing peripheral wall and the base fit together with the pressure plate to form a vacuum space; the base is provided with a corresponding sealing groove after the sealing peripheral wall moves down, and a rubber ring is provided in the sealing groove; the double sealing design of the sealing groove and the rubber ring on the base ensures the sealing performance of the equipment under vacuum conditions and reduces the possibility of vacuum leakage; the base is also provided with a heating plate; the heating plate can provide a stable heat source to promote the evaporation of solvents in the material; a set of pressure sensors are arranged side by side on the heating plate, and when the pressure sensor reading does not change, it can be determined that vacuum drying is complete, improving production efficiency; a gas pressure sensor is also provided between the pressure sensors; a set of temperature control probes are provided on the lower surface of the pressure plate, which can monitor and control the temperature in real time during the drying process to ensure the accuracy and consistency of drying conditions; the vacuum pump is located inside the frame; the suction end of the vacuum pump passes through the platform, the lower plate, the base and the heating plate in sequence, and is located between a set of pressure sensors.

[0007] Furthermore, a pressure relief valve is also provided beside the vacuum pump; the pressure relief valve's relief pipe leads to the side of the vacuum pump's suction end and is also located among a set of pressure sensors. The slow pressure relief provided by the pressure relief valve can reduce wear on internal components of the equipment, thereby reducing maintenance costs and repair frequency.

[0008] Furthermore, an observation window is provided on one side of the sealed peripheral wall, allowing operators to observe in real time and ensure that the equipment operation process is under control.

[0009] Furthermore, a protective frame is provided around the sealing assembly to prevent external interference from affecting the operation of the equipment.

[0010] Furthermore, the protective frame is equipped with a set of light gratings on the open side to prevent operators from accidentally coming into contact with the high-temperature heating plate during equipment operation.

[0011] Furthermore, the upper part of the protective frame is also equipped with a control console; the control console is equipped with an emergency stop button. The control console provides an integrated control center, while the emergency stop button provides safety redundancy and safety assurance in the event of an accident.

[0012] Furthermore, the bottom of the platform is equipped with several casters and feet. The flexibility of the casters allows the equipment to be quickly moved to a designated location, while the stabilizing function of the feet ensures that the equipment can quickly stabilize after arriving at the position, reducing the operator's waiting time.

[0013] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0014] 1. This utility model discloses a vacuum drying device for preparing pyrazolium hydrochloride, which is designed with multiple temperature control probes to monitor the temperature of the vacuum drying environment in real time; in conjunction with a pressure sensor, drying is complete when the pressure sensor reading no longer changes, thus improving the preparation efficiency;

[0015] 2. This utility model provides a vacuum drying device for preparing pyrazol hydrochloride. The design of the pressure relief valve prevents the product from being blown away or the equipment from being damaged, thus extending the service life of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a vacuum drying device for preparing pyrazolium hydrochloride according to the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of a vacuum drying device for preparing pyrazolium hydrochloride according to the present invention, with the protective frame removed.

[0018] Figure 3 This is a schematic diagram of the vacuum pump extraction end in a vacuum drying device for preparing pyrazolium hydrochloride according to the present invention.

[0019] Figure 4 This is a partial structural diagram of the base in a vacuum drying device for preparing pyrazolium hydrochloride according to the present invention;

[0020] In the picture:

[0021] 1-Frame; 11-Casual casters; 12-Foot support;

[0022] 2-Mounting bracket; 21-Upper plate; 22-Lower plate;

[0023] 3-Press drive assembly; 31-Cylinder; 32-Press plate; 33-Guide rod; 321-Temperature control probe;

[0024] 4-Sealing assembly; 41-Sealing perimeter wall; 42-Base; 411-Observation window; 421-Sealing groove; 422-Heating plate; 423-Pressure sensor; 424-Air pressure sensor;

[0025] 5-Vacuum pump;

[0026] 6-Pressure relief valve;

[0027] 7-Protective frame; 71-Light grating; 72-Control panel; 721-Emergency stop button. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example

[0029] In this embodiment, as Figures 1 to 4 This utility model discloses a vacuum drying device for preparing pyrazolium hydrochloride, including a frame 1, a mounting frame 2, a downward pressure drive assembly 3, a sealing assembly 4, and a vacuum pump 5; the mounting frame 2 is disposed on the table surface of the frame 1; the mounting frame 2 is provided with an upper plate 21 and a lower plate 22 respectively; the lower plate 22 is disposed on the table surface of the frame 1; the upper plate 21 is disposed above the lower plate 22 by a plurality of columns; the downward pressure drive assembly 3 is disposed on the mounting frame 2; the downward pressure drive assembly 3 includes a cylinder 31, a downward pressure plate 32, and a set of guide rods 33; the cylinder 31 is disposed on the upper plate 21; the downward pressure plate 32 is disposed at the output end of the cylinder 31; the lower end of the guide rod 33 is fixedly connected to the downward pressure plate 32, and the upper end is connected to the upper surface of the upper plate 21 through a bushing; the sealing assembly 4 is disposed between the downward pressure plate 32 and the lower plate 22; the sealing assembly 4 includes a sealing peripheral wall 41 and a base 42; the sealing peripheral wall 41 is connected to the lower surface of the lower pressure plate 32; the base 42 is disposed on the lower plate 22; the sealing peripheral wall 41 and the base 42 are closed to cooperate with the lower pressure plate 32 to form a vacuum space; the base 42 is provided with a corresponding sealing groove 421 after the sealing peripheral wall 41 is moved down, and a rubber ring is provided in the sealing groove 421; a heating plate 422 is also provided on the base 42; a set of pressure sensors 423 are arranged side by side on the heating plate 422; a gas pressure sensor 424 is also provided between the pressure sensors 423; a set of temperature control probes 321 is provided on the lower surface of the lower pressure plate 32; the vacuum pump 5 is disposed in the frame 1; the suction end of the vacuum pump 5 passes through the table surface of the frame 1, the lower plate 22, the base 42 and the heating plate 422 in sequence, and is located between the set of pressure sensors 423.

[0030] Specifically, the sealing peripheral wall 41 can be connected to the lower pressure plate 32 by threads or clips; the base 42 can be connected to the lower plate 22 by bolts, which facilitates regular disassembly and cleaning and prevents cross-contamination caused by material residue.

[0031] Specifically, an overheat protection switch can be added to the heating plate 422. When the temperature of the heating plate 422 exceeds the set safety limit, the protection switch will automatically cut off the heating power to prevent equipment damage and safety accidents.

[0032] Specifically, there are two temperature control probes 321. When calculating the temperature, the average value of the readings of the two temperature control probes 321 is taken as the ambient temperature to ensure that the pyrazol hydrochloride is always within a suitable temperature range during the drying process.

[0033] Specifically, the vacuum pump 5 is mounted inside the frame 1 via a bracket; and a condenser can be added to the pumping pipe of the vacuum pump 5 to reduce the impact of the solute on the vacuum pump 5 and facilitate solute recovery.

[0034] In this embodiment, as Figure 2 and Figure 3 A pressure relief valve 6 is also provided on the side of the vacuum pump 5; the pressure relief pipe of the pressure relief valve 6 is connected to the side of the suction end of the vacuum pump 5, and is also located between a set of pressure sensors 423.

[0035] Specifically, a sealing gasket can be installed at the connection between the pressure relief pipe of the pressure relief valve 6 and the base 42 to ensure a tight seal.

[0036] In this embodiment, as Figure 2 An observation window 411 is provided on one side of the sealed peripheral wall 41.

[0037] Specifically, operators can observe the vacuuming space through observation window 411 to monitor the progress in real time.

[0038] In this embodiment, as Figure 1 The sealing assembly 4 is provided with a protective frame 7 on its periphery.

[0039] Specifically, the protective frame 7 is preferably made of mesh.

[0040] In this embodiment, as Figure 1 The protective frame 7 has a set of light gratings 71 on the open side.

[0041] Specifically, during the vacuum drying process, once an object (such as a human body part or tool) is detected passing between the gratings 71, the gratings 71 will immediately trigger a safety signal, causing the equipment to stop operating and thus preventing accidents from occurring.

[0042] In this embodiment, as Figure 1The upper part of the protective frame 7 is also provided with a control console 72; the control console 72 is provided with an emergency stop button 721.

[0043] Specifically, in the event of an emergency, simply press the emergency stop button 721 to cut off the power to the equipment and immediately stop its operation to prevent the situation from worsening.

[0044] In this embodiment, as Figure 2 The bottom of the platform 1 is provided with several casters 11 and foot supports 12.

[0045] Specifically, when the equipment needs to be moved, the foot support 12 moves upward and retracts, and the equipment is moved by the casters 11; when the equipment reaches the designated position, the foot support 12 moves downward to keep the equipment stable and prevent displacement.

[0046] The working principle of the above embodiments is as follows:

[0047] This utility model discloses a vacuum drying device for preparing pyrazolium hydrochloride. In use, two trays of pyrazolium hydrochloride to be dried can be dried at a time. The trays containing the pyrazolium hydrochloride to be dried are placed on pressure sensors 423. Cylinder 31 drives the lower pressure plate 32 to close the sealing peripheral wall 41 with the sealing groove 421 on the base 42. At this time, the pressure relief valve 6 closes. Vacuum pump 5 starts pumping air, which is monitored in real time by pressure sensor 424. After the environment reaches the set vacuum level, heating plate 422 starts heating, and a set of temperature control probes 321 monitors the ambient temperature in real time. The evaporated solute is removed by vacuum pump 5.

[0048] Pressure sensor 423 monitors the pressure generated by the tray in real time. When the pressure is constant, it is determined that the vacuum drying process is complete, and pressure relief valve 6 begins to slowly release pressure. After the pressure is balanced, cylinder 31 drives the lower pressure plate 32 to move the sealing peripheral wall 41 upward, completing the vacuum drying operation.

[0049] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A vacuum drying apparatus for preparing pyrazolium hydrochloride, characterized in that: include: A platform (1) and a mounting bracket (2), wherein the mounting bracket (2) is disposed on the platform of the platform (1); The mounting frame (2) is provided with an upper plate (21) and a lower plate (22) on the top and bottom respectively; the lower plate (22) is provided on the platform of the frame (1); the upper plate (21) is provided above the lower plate (22) through several columns; A pressure drive assembly (3) is mounted on a mounting bracket (2); The pressure drive assembly (3) includes a cylinder (31), a pressure plate (32), and a set of guide rods (33). The cylinder (31) is mounted on the upper plate (21); the lower pressure plate (32) is mounted on the output end of the cylinder (31); the lower end of the guide rod (33) is fixedly connected to the lower pressure plate (32), and the upper end is connected to the upper surface of the upper plate (21) through a bushing; A sealing assembly (4) is disposed between the lower pressure plate (32) and the lower plate (22); The sealing assembly (4) includes a sealing peripheral wall (41) and a base (42). The sealing peripheral wall (41) is connected to the lower surface of the lower pressure plate (32); the base (42) is located on the lower plate (22); the sealing peripheral wall (41) and the base (42) are closed to cooperate with the lower pressure plate (32) to form a vacuum space; The base (42) is provided with a sealing groove (421) after the sealing peripheral wall (41) is moved down, and a rubber ring is provided in the sealing groove (421); The base (42) is also provided with a heating plate (422); a group of pressure sensors (423) are arranged side by side on the heating plate (422); and a gas pressure sensor (424) is also provided between the pressure sensors (423). A set of temperature control probes (321) is provided on the lower surface of the lower pressure plate (32). Vacuum pump (5), the vacuum pump (5) is located inside the frame (1); the pumping end of the vacuum pump (5) passes through the table surface, lower plate (22), base (42) and heating plate (422) of the frame (1) in sequence, and is located between a set of pressure sensors (423).

2. The vacuum drying apparatus for preparing pyrazolium hydrochloride according to claim 1, characterized in that: A pressure relief valve (6) is also provided on the side of the vacuum pump (5); the pressure relief pipe of the pressure relief valve (6) is connected to the side of the suction end of the vacuum pump (5), and is also located between a set of pressure sensors (423).

3. The vacuum drying apparatus for preparing pyrazolium hydrochloride according to claim 1, characterized in that: An observation window (411) is provided on one side of the sealed peripheral wall (41).

4. The vacuum drying apparatus for preparing pyrazolium hydrochloride according to claim 1, characterized in that: The sealing assembly (4) is provided with a protective frame (7) around its periphery.

5. The vacuum drying apparatus for preparing pyrazolium hydrochloride according to claim 4, characterized in that: The protective frame (7) has a set of gratings (71) on the open side.

6. The vacuum drying apparatus for preparing pyrazolium hydrochloride according to claim 4, characterized in that: The upper part of the protective frame (7) is also provided with a control console (72); the control console (72) is provided with an emergency stop button (721).

7. The vacuum drying apparatus for preparing pyrazolium hydrochloride according to claim 1, characterized in that: The bottom of the platform (1) is provided with several casters (11) and foot supports (12).

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