Chemical raw material stirring and mixing device

Abstract

This utility model belongs to the technical field of mixing equipment, specifically relating to a chemical raw material mixing equipment, including a tank body with a drive device on it. Inside the tank body is a mixing assembly connected to the drive device. The tank body includes an outer shell and an inner liner, with a first heating assembly sandwiched between the outer shell and the inner liner. The mixing assembly includes a stirring shaft, and first and second stirring blades staggered on the stirring shaft. The second stirring blades are T-shaped, with their ends close to the side wall of the inner liner. The top of the tank body has several nozzles with different spray angles, the spray direction of which is centered on the tank body's axis and faces the inner wall of the tank. Its structure is simple and rationally designed. The first and second heating assemblies work together to achieve more uniform heating, and the second stirring blades work in conjunction with the nozzles to prevent sticking.

Description

Technical Field

[0001] This utility model belongs to the technical field of mixing equipment, and specifically relates to a chemical raw material mixing equipment. Background Technology

[0002] In the pharmaceutical field, the mixing of chemical raw materials is a crucial step in drug research and development and production, directly affecting the purity, stability, efficacy, and safety of the drug. Its core objective is to ensure that the final product meets stringent quality standards by uniformly mixing different chemical raw materials (such as active pharmaceutical ingredients, excipients, and solvents).

[0003] Currently, the mixing equipment used in the pharmaceutical industry still has the following pain points in actual production:

[0004] First, some raw materials undergo chemical reactions during mixing and stirring, and temperature is a key factor affecting the reaction rate. Existing equipment uses heating components on the tank to regulate the internal temperature, but this often results in a higher temperature on the outside of the tank and a lower temperature in the middle, affecting the reaction. Second, for powdered raw materials that need to be dissolved in water, the powder tends to clump and stick to the sides of the tank, resulting in insufficient mixing. 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 chemical raw material stirring and mixing device with a simple structure and reasonable design, which aims to solve the above technical problems.

[0006] Technical solution: In order to achieve the above objectives, this utility model provides a chemical raw material stirring and mixing device, including a tank, a driving device on the tank, a stirring assembly connected to the driving device inside the tank, the tank including an outer shell and an inner liner, a first heating assembly in the interlayer between the outer shell and the inner liner, and a second heating assembly inside the stirring assembly, the first heating assembly and the second heating assembly being used to heat the internal temperature of the tank;

[0007] The stirring assembly includes a stirring shaft, a first stirring blade and a second stirring blade arranged alternately on the stirring shaft. The second stirring blade is T-shaped, and the end of the second stirring blade is close to the side wall of the inner liner. The first stirring blade and the second stirring blade stir and mix the chemical raw materials as the stirring shaft rotates. The second stirring blade can also scrape off the material adhering to the inner wall of the tank to ensure that it is fully mixed.

[0008] The top of the tank is equipped with several nozzles with different spray angles. The spray direction of the nozzles is centered on the axis of the tank and faces the inner wall of the tank. The nozzles can be used to clean the tank after stirring, or to add liquid materials to the tank during stirring. At the same time, the liquid materials wash the side wall of the tank, and the scraping action of the second stirring blades makes it difficult for the materials to stick to the side wall of the tank.

[0009] Furthermore, the first heating component is a heating tube spirally arranged on the outside of the inner liner, and the second heating component is an electric heating wire disposed inside the stirring shaft, the first stirring blade, and the second stirring blade. The heating tube on the outside of the inner liner mainly heats the inner liner, and the electric heating wire inside the stirring shaft, the first stirring blade, and the second stirring blade gives them a certain temperature, thus heating the material during stirring.

[0010] Furthermore, the tank is equipped with multiple temperature probes for measuring the internal temperature of the tank.

[0011] Furthermore, a scraper is provided at the end of the second stirring blade. The scraper is inclined, which can increase the working area and reduce the resistance when scraping materials, thus maintaining the stable operation of the system.

[0012] Furthermore, the driving device is located at the top of the tank and includes a drive motor, a reducer connected to the output end of the drive motor, and a coupling connected to the output end of the reducer. The other end of the coupling is connected to the stirring shaft.

[0013] Furthermore, the top of the tank is provided with a feeding port, and the feeding port is provided with a cover for closing the feeding port.

[0014] Furthermore, the bottom surface of the inner liner is conical, and a discharge pipe is provided in communication with the conical bottom surface, and a solenoid valve is provided on the discharge pipe.

[0015] Furthermore, a liquid storage tank is also provided on the side of the tank body. The bottom of the liquid storage tank is connected to the inside of the tank body through a pipe. The liquid storage tank has graduation lines on its body and a water inlet on its side. The liquid storage tank can store a fixed amount of liquid, which can be injected into the tank body through the pipe at the bottom. The amount of liquid injected can be clearly indicated by the graduation lines.

[0016] Furthermore, the tank is equipped with a pressure relief pipe and a pressure relief valve, and a pressure gauge for monitoring its internal pressure is also provided on the side of the tank.

[0017] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0018] 1. The purpose of this utility model is to provide a chemical raw material mixing device with a simple structure and reasonable design. The inner liner of the tank is heated by a spiral first heating component set on its outer side. At the same time, an electric heating wire is set inside the mixing component. The mixing component contacts and heats the material while mixing it, so that the material inside the tank is heated more evenly, which is conducive to the high-quality preparation of raw materials.

[0019] 2. The T-shaped second stirring blade can not only stir and mix the materials, but also scraper at its end can scrape off the materials adhering to the inner wall of the tank and break them up and mix them through the stirring component. At the same time, multiple nozzles are set on the top of the tank, facing the inner side wall of the tank. When liquid materials are added, the side wall of the tank is flushed. In conjunction with the second stirring blade, it can effectively prevent the materials from caking and sticking to the side wall of the tank, which would cause uneven mixing. In addition, after the stirring and mixing work is completed, the inside of the tank can be cleaned by spraying clean water through the nozzles. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a chemical raw material mixing device according to the present invention;

[0021] Figure 2 This is a cross-sectional view of a chemical raw material mixing device according to the present invention.

[0022] In the diagram: 1-Tank body, 11-Outer shell, 12-Inner liner, 13-First heating component, 14-Temperature probe, 15-Drive motor, 16-Reducer, 18-Coupling, 19-Feeding port, 101-Discharge pipe, 102-Solenoid valve, 103-Storage tank, 104-Scale line, 105-Water inlet, 106-Pressure relief pipe, 107-Nozzle, 108-Pressure gauge;

[0023] 2-Stirring assembly, 21-Second heating assembly, 22-Stirring shaft, 23-First stirring blade, 24-Second stirring blade. Detailed Implementation

[0024] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0025] Example 1

[0026] In a preferred embodiment, such as Figure 1-2 As shown, a chemical raw material stirring and mixing device includes a tank 1, a driving device is provided on the tank 1, a stirring assembly 2 connected to the driving device is provided inside the tank 1, the tank 1 includes an outer shell 11 and an inner liner 12, a first heating assembly 13 is provided in the interlayer between the outer shell 11 and the inner liner 12, and a second heating assembly 21 is provided inside the stirring assembly 2.

[0027] The stirring assembly 2 includes a stirring shaft 22, and first stirring blades 23 and second stirring blades 24 staggered on the stirring shaft 22. The second stirring blades 24 are T-shaped, and the ends of the second stirring blades 24 are close to the side wall of the inner liner 12.

[0028] The top of the tank body 1 is provided with several nozzles 107 with different spray angles. The spray direction of the nozzles 107 is centered on the axis of the tank body 1 and toward the inner wall of the tank body 1.

[0029] In a further optimized design, the first heating component 13 is a heating tube spirally arranged on the outside of the inner liner 12, and the second heating component 21 is an electric heating wire disposed inside the stirring shaft 22, the first stirring blade 23, and the second stirring blade 24.

[0030] The tank 1 is equipped with multiple temperature probes 14 for measuring the internal temperature of the tank 1. The temperature probes 14 measure the internal temperature of the tank 1 from multiple locations, and adjust the heating temperature of the first heating component 13 and the second heating component 21 according to the temperature adjustment, so that the temperature in the tank 1 is closer to the desired temperature.

[0031] In addition, a scraper 241 is provided at the end of the second stirring blade 24, and the scraper 241 is inclined.

[0032] Specifically, the drive device is located at the top of the tank 1. The drive device includes a drive motor 15, a reducer 16 connected to the output end of the drive motor 15, and a coupling 18 connected to the output end of the reducer 16. The other end of the coupling 18 is connected to the stirring shaft 22.

[0033] The tank body 1 is equipped with a feeding port 19 at the top, and a cover is provided on the feeding port 19 for closing the feeding port. After opening the cover, the operator can feed a fixed amount of raw materials into the tank body 1 through the feeding port 19.

[0034] Specifically, the bottom surface of the inner liner 12 is conical, and a discharge pipe 101 is connected to the conical bottom surface. A solenoid valve 102 is installed on the discharge pipe 101. After the material is stirred and mixed evenly, it is discharged from the tank 1 through the discharge pipe 101, and the solenoid valve 102 controls the conduction of the discharge pipe 101.

[0035] Specifically, a liquid storage tank 103 is provided on the side of the tank body 1. The bottom surface of the liquid storage tank 103 is connected to the inside of the tank body 1 through a pipe. The liquid storage tank 103 has a scale line 104 on its body and a water inlet 105 on its side.

[0036] In a further optimized design, the tank 1 is equipped with a pressure relief pipe 106, and a pressure relief valve is installed on the pressure relief pipe 106. A pressure gauge 108 for monitoring the internal pressure of the tank 1 is also installed on the side of the tank 1. Some raw materials may react during the mixing process, and some reactions may be accompanied by the generation of gas, causing the pressure inside the tank 1 to rise. The pressure relief pipe 106 is used to release pressure and maintain the stability of the internal pressure of the tank 1. The rear end of the pressure relief pipe 106 is connected to a gas treatment device to treat some reaction gases that require processing.

[0037] Example 2

[0038] Based on the embodiments, a water outlet pipe can be added to the side of the liquid storage tank 103. The water outlet pipe is connected to the nozzle 107. The nozzle 107 does not need to be connected to a separate pipe. The nozzle can still achieve the functions of cleaning and feeding. However, a pressurizing device needs to be installed at the front or rear end of the liquid storage tank 103 to provide sufficient water pressure for the nozzle 107.

[0039] 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 chemical raw material mixing device, comprising a tank (1), a driving device provided on the tank (1), and a stirring assembly (2) connected to the driving device inside the tank (1), characterized in that, The tank (1) includes an outer shell (11) and an inner liner (12). A first heating component (13) is provided in the interlayer between the outer shell (11) and the inner liner (12). A second heating component (21) is provided inside the stirring component (2). The stirring assembly (2) includes a stirring shaft (22), and is staggered with a first stirring blade (23) and a second stirring blade (24). The second stirring blade (24) is T-shaped, and the end of the second stirring blade (24) is close to the side wall of the inner liner (12). The top of the tank (1) is provided with several nozzles (107) with different spray angles. The spray direction of the nozzles (107) is centered on the axis of the tank (1) and toward the inner wall of the tank (1).

2. The chemical raw material mixing equipment according to claim 1, characterized in that, The first heating component (13) is a heating tube spirally arranged on the outside of the inner liner (12), and the second heating component (21) is an electric heating wire arranged inside the first stirring blade (23) and the second stirring blade (24) on the stirring shaft (22).

3. The chemical raw material mixing equipment according to claim 1, characterized in that, The tank (1) is equipped with multiple temperature probes (14) for measuring the internal temperature of the tank (1).

4. The chemical raw material mixing equipment according to claim 1, characterized in that, The end of the second stirring blade (24) is provided with a scraper (241), which is inclined.

5. A chemical raw material mixing and stirring device according to claim 1, characterized in that, The driving device is located on the top of the tank (1). The driving device includes a drive motor (15), a reducer (16) connected to the output end of the drive motor (15), and a coupling (18) connected to the output end of the reducer (16). The other end of the coupling (18) is connected to the stirring shaft (22).

6. The chemical raw material mixing equipment according to claim 1, characterized in that, The top of the tank (1) is also provided with a feeding port (19), and the feeding port (19) is provided with a cover for closing the feeding port.

7. A chemical raw material mixing device according to claim 1, characterized in that, The bottom surface of the inner liner (12) is conical, and a discharge pipe (101) is provided in communication with the bottom surface of the conical shape. A solenoid valve (102) is provided on the discharge pipe (101).

8. A chemical raw material mixing device according to claim 1, characterized in that, The side of the tank body (1) is also provided with a liquid storage tank (103). The bottom surface of the liquid storage tank (103) is connected to the inside of the tank body (1) through a pipe. The liquid storage tank (103) has a scale line (104) on its body and a water inlet (105) on its side.

9. A chemical raw material mixing device according to claim 1, characterized in that, The tank (1) is provided with a pressure relief pipe (106), and a pressure relief valve is provided on the pressure relief pipe (106). The side of the tank (1) is also provided with a pressure gauge (108) for monitoring its interior.

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