A laboratory mixing apparatus

Abstract

The utility model discloses a kind of experimental mixing equipment including mixing chamber and stirring device, mixing chamber is formed with mixing cavity and the discharge port and multiple feed ports of intercommunication described mixing cavity;Stirring device includes driving motor, stirring shaft and multiple stirring blades, the driving motor is directly connected with the stirring shaft, the stirring shaft extends into the mixing cavity and is sealed rotationally connected with the mixing chamber, the stirring blade is located in the stirring cavity and is detachably connected with the stirring shaft.Compared with prior art, the experimental mixing equipment provided by the utility model adopts driving motor and stirring shaft direct connection, no longer set speed change mechanism, but stirring blade and stirring shaft are detachably connected, the number of stirring blade on stirring shaft is increased or reduced to control mixing rate, in the case where the same technical effect is reached, the structural complexity of mixing equipment is reduced, and the reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, specifically to an experimental mixing device. Background Technology

[0002] Mixing materials is a routine experimental procedure. The most important aspect of mixing materials is controlling the mixing rate. The mixing rate is primarily related to two factors: the shape of the agitator and the mixing speed.

[0003] Existing mixing equipment typically uses a motor connected to the mixing shaft via a speed-changing mechanism. The speed-changing mechanism reduces the motor's high speed to a suitable low speed to control the mixing rate. This method inevitably requires a speed-changing mechanism, increasing the complexity of the equipment and reducing its reliability. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose an experimental mixing device to solve the technical problem that the use of a speed-changing mechanism in existing laboratory mixing devices leads to complex structure and low reliability.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This invention provides a laboratory mixing device, comprising: a mixing chamber and a stirring device. The mixing chamber has a mixing cavity and an outlet and multiple inlets connected to the mixing cavity; The stirring device includes a drive motor, a stirring shaft, and multiple stirring blades. The drive motor is directly connected to the stirring shaft, which extends into the mixing chamber and is rotatably and sealed to the mixing chamber. The stirring blades are located in the mixing chamber and are detachably connected to the stirring shaft.

[0006] In some embodiments, the mixing chamber includes a sleeve and two sealing caps. The two ends of the sleeve are respectively sealed and detachably connected to the sealing caps, and together form the mixing chamber. A first inlet and a first outlet are formed on the sleeve, which communicate with the mixing chamber.

[0007] In some embodiments, the sealing cap is further provided with a second inlet and a second outlet that are respectively connected to the first inlet and the first outlet.

[0008] In some embodiments, the mixing chamber further includes a feed pipe and a discharge pipe. The feed pipe is detachably and sealed to both the first feed port and the second feed port. The discharge pipe is detachably and sealed to both the first discharge pipe and the second discharge pipe. One end of the feed pipe and the discharge pipe communicates with the mixing chamber, and the other end extends out of the mixing chamber and forms a quick-release connector.

[0009] In some embodiments, the mixing chamber further includes multiple anchor rods, each anchor rod having external threads at both ends, and each of the two sealing caps having corresponding threaded holes, with the anchor rods threadedly connected to the two sealing caps respectively.

[0010] In some embodiments, the mixing chamber is arranged horizontally, and the inlet and outlet are located at opposite ends of the mixing chamber; the experimental mixing equipment further includes at least two sets of temperature sensors and pressure sensors, with one set of temperature sensors and one set of pressure sensors arranged at each end of the mixing chamber.

[0011] In some embodiments, the stirring blades are arranged axially along the stirring shaft, and a plurality of through holes are formed on the stirring blades.

[0012] In some embodiments, the surface of the stirring shaft is formed with a plurality of sets of slots along its circumference, and the stirring blade is formed with a locking block corresponding to the slot, each set of the slots being used to install one of the stirring blades.

[0013] In some embodiments, a water bath heating tube is further included, which is fixedly sleeved outside the sleeve to form a water bath heating cavity with the sleeve. The water bath heating tube has an inlet and an outlet. The inlet is connected to the bottom of the water bath heating cavity and is close to the outlet. The outlet is connected to the top of the water bath heating cavity and is close to the inlet.

[0014] In some embodiments, a support frame is also included, the support frame including a base and a plurality of platforms, the lower end of the platforms being fixedly connected to the base, and the drive motor and the sealing cover being respectively disposed on different platforms.

[0015] Compared with the prior art, the experimental mixing equipment provided by this utility model adopts a direct connection between the drive motor and the stirring shaft, eliminating the need for a speed change mechanism. Instead, the stirring blades and the stirring shaft are detachably connected, and the mixing rate is controlled by increasing or decreasing the number of stirring blades on the stirring shaft. While achieving the same technical effect, the structural complexity of the mixing equipment is reduced and the reliability is improved. Attached Figure Description

[0016] Figure 1 This is a front view of the experimental mixing equipment provided in this embodiment of the utility model; Figure 2 This is a cross-sectional view of the experimental mixing equipment provided in this embodiment of the utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] To address the technical problem of complex structure and low reliability caused by the use of speed-changing mechanisms in laboratory mixing equipment, this utility model provides a laboratory mixing device that uses a drive motor directly connected to the stirring shaft, eliminating the need for a speed-changing mechanism. Instead, the mixing rate is controlled by increasing or decreasing the number of stirring blades on the stirring shaft, resulting in a simpler structure and higher reliability.

[0019] Please see Figure 1 and Figure 2 , Figure 1 This is a front view of the experimental mixing equipment provided in this embodiment of the utility model; Figure 2 This is a cross-sectional view of the experimental mixing equipment provided in this embodiment of the present invention. The experimental mixing equipment includes a mixing chamber 1 and a stirring device 2.

[0020] The mixing chamber 1 has a mixing cavity, an outlet connected to the mixing cavity, and multiple inlets. The multiple inlets are used to input different raw materials, and the outlet is used to output the mixed raw materials.

[0021] The stirring device 2 includes a drive motor 21, a stirring shaft 22, and multiple stirring blades 23. The drive motor 21 is directly connected to the stirring shaft 22, without a speed-changing mechanism between them. The stirring shaft 22 extends into the mixing chamber and is rotatably sealed to the mixing chamber 1. The stirring blades 23 are located inside the mixing chamber and are detachably connected to the stirring shaft 22. The mixing rate can be controlled by increasing or decreasing the number of stirring blades 23 on the stirring shaft 22. The entire device eliminates the need for a speed-changing mechanism, resulting in a simpler structure and higher reliability.

[0022] In some embodiments, the mixing chamber is arranged horizontally, with the inlet and outlet located at opposite ends of the mixing chamber.

[0023] In some embodiments, the mixing chamber 1 includes a sleeve 11 and two sealing caps 12. Both ends of the sleeve 11 are detachably and sealingly connected to the sealing caps 12, forming a mixing chamber. The ends of the sleeve 11 can form flange-like structures. The sealing caps 12 are fitted onto the ends of the sleeve 11 and connected to the sleeve 11 by bolts. A sealing gasket 31 or a sealing ring 32 can also be provided inside the sealing cap 12 for sealing. The sleeve 11 is arranged horizontally. A first inlet 11a and a first outlet 11b communicating with the mixing chamber are formed on the sleeve 11. The stirring shaft 22 passes through one of the sealing caps 12 and is rotatably and sealingly connected to it.

[0024] Based on the above embodiment, the sealing cover 12 also has a second inlet 12a and a second outlet 12b that are respectively connected to the first inlet 11a and the first outlet 11b. The first inlet 11a and the second inlet 12a constitute the inlet. The first outlet 11b and the second outlet 12b constitute the outlet.

[0025] Based on the above embodiment, the mixing chamber 1 further includes an inlet pipe 13 and an outlet pipe 14. The inlet pipe 13 is detachably and sealingly connected to both the first inlet port 11a and the second inlet port 12a, and the outlet pipe 14 is detachably and sealingly connected to both the first outlet pipe 11b and the second outlet pipe 12b. A threaded connection can be used, and raw material tape can be wrapped around the inlet pipe 13 and the outlet pipe 14 to achieve a seal. One end of the inlet pipe 13 and the outlet pipe 14 communicates with the mixing chamber, and the other end extends out of the mixing chamber to form a quick-release connector for connection with other feeding equipment.

[0026] Based on the above embodiment, the mixing chamber 1 further includes multiple anchor rods 15, each with external threads at both ends. Corresponding threaded holes are formed on the two sealing caps 12, and the anchor rods 15 are threadedly connected to the two sealing caps 12 respectively. The anchor rods 15 are used to rivet the two sealing caps 12, providing tension to make the connection between the sealing caps and the sleeve 11 more secure and improve sealing performance.

[0027] In some embodiments, the stirring device 2 further includes a bearing 24, and the stirring shaft 22 is rotatably connected to the sleeve 11 through the bearing 24.

[0028] In some embodiments, the stirring blades 23 are arranged axially along the stirring shaft 22, and a plurality of through holes are formed on the stirring blades 23 for promoting the mixing of materials.

[0029] Based on the above embodiment, the surface of the stirring shaft 22 is formed with multiple sets of slots 221 along its circumference, and the stirring blade 23 is formed with a corresponding locking block. Each set of slots 221 is used to install one stirring blade 23. The more stirring blades 23 installed, the higher the stirring rate. Figure 2 Only one stirring blade 23 is installed in the middle, which is the lowest stirring speed.

[0030] In some embodiments, the mixing equipment used in this experiment further includes a water bath heating pipe 4, which is fixedly sleeved outside the sleeve 11, forming a water bath heating chamber together with the sleeve 11. The water bath heating pipe 4 has an inlet 41 and an outlet 42. The inlet 41 is connected to the bottom of the water bath heating chamber and is close to the outlet, while the outlet 42 is connected to the top of the water bath heating chamber and is close to the inlet, thus forming countercurrent water bath heating. Water bath heating can be achieved by connecting the inlet 41 and the outlet 42 to an external water supply device.

[0031] In some embodiments, the mixing equipment used in this experiment further includes at least two sets of temperature sensors 5 and pressure sensors 6, with one set of temperature sensors 5 and one set of pressure sensors 6 arranged at each end of the mixing chamber. The temperature sensors 5 and pressure sensors 6 are also arranged through the sleeve 11 and the sealing cover 12, and are used to measure the temperature and pressure at the inlet and outlet.

[0032] In some embodiments, the mixing equipment used in this experiment further includes a support frame 7, which includes a base 71 and multiple support platforms 72. The lower ends of the support platforms 72 are fixedly connected to the base 71, and the drive motor 21 and the sealing cover 12 are respectively disposed on different support platforms 72 to support the mixing chamber 1 and the stirring device 2. In other embodiments, support platforms 72 may also be added to support the sleeve 11.

[0033] The mixing equipment used in this experiment adopts a direct connection between the drive motor 21 and the stirring shaft 22, without setting a speed change mechanism. Instead, the mixing rate is controlled by increasing or decreasing the number of stirring blades 23 on the stirring shaft 22. The structure is simple and the reliability is higher.

[0034] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A mixing device for laboratory use, characterized in that, include: A mixing chamber having a mixing cavity and an outlet and multiple inlets communicating with the mixing cavity; A stirring device includes a drive motor, a stirring shaft, and multiple stirring blades. The drive motor is directly connected to the stirring shaft, which extends into the mixing chamber and is rotatably and sealed to the mixing chamber. The stirring blades are located in the mixing chamber and are detachably connected to the stirring shaft.

2. The experimental mixing equipment according to claim 1, characterized in that, The mixing chamber includes a sleeve and two sealing caps. The two ends of the sleeve are detachably connected to the sealing caps and together form the mixing chamber. The sleeve has a first inlet and a first outlet that communicate with the mixing chamber.

3. The experimental mixing equipment according to claim 2, characterized in that, The sealing cover also has a second inlet and a second outlet that are respectively connected to the first inlet and the first outlet.

4. The experimental mixing equipment according to claim 3, characterized in that, The mixing chamber also includes a feed pipe and a discharge pipe. The feed pipe is detachably and sealed to both the first feed port and the second feed port. The discharge pipe is detachably and sealed to both the first discharge port and the second discharge port. One end of the feed pipe and the discharge pipe are connected to the mixing chamber, and the other end extends out of the mixing chamber to form a quick-release connector.

5. The experimental mixing equipment according to claim 2, characterized in that, The mixing chamber also includes multiple anchor rods, each anchor rod having external threads at both ends. The two sealing caps each have corresponding threaded holes, and the anchor rods are threadedly connected to the two sealing caps respectively.

6. The experimental mixing equipment according to claim 1, characterized in that, The mixing chamber is arranged horizontally, and the inlet and outlet are located at opposite ends of the mixing chamber. The experimental mixing equipment also includes at least two sets of temperature sensors and pressure sensors, with one set of temperature sensors and one set of pressure sensors arranged at each end of the mixing chamber.

7. The experimental mixing equipment according to claim 1, characterized in that, The stirring blades are arranged along the axial direction of the stirring shaft, and multiple through holes are formed on the stirring blades.

8. The experimental mixing equipment according to claim 7, characterized in that, The surface of the stirring shaft is formed with multiple sets of slots along its circumference, and the stirring blade is formed with a corresponding locking block. Each set of slots is used to install one stirring blade.

9. The experimental mixing equipment according to claim 2, characterized in that, It also includes a water bath heating tube, which is fixedly sleeved outside the sleeve to form a water bath heating cavity. The water bath heating tube has an inlet and an outlet. The inlet is connected to the bottom of the water bath heating cavity and is close to the outlet. The outlet is connected to the top of the water bath heating cavity and is close to the inlet.

10. The experimental mixing equipment according to claim 2, characterized in that, It also includes a support frame, which includes a base and multiple support platforms. The lower end of each support platform is fixedly connected to the base, and the drive motor and the sealing cover are respectively disposed on different support platforms.

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