Small-capacity experimental reaction device and method

Abstract

The invention relates to the technical field of laboratory reaction devices, and provides a small-capacity experimental reaction device and method.The reaction device comprises a rack, a supporting table, a reaction kettle, a guide rail, a lifting assembly, a kettle cover and a stirring assembly; the supporting table comprises a proportioning area and a stirring area, the bottom of the reaction kettle is connected with a plurality of rollers, and the reaction kettle is movably arranged on the supporting table; the guide rails are connected to the two sides of the supporting table, and the two guide rails are parallel to each other and used for limiting the reaction kettle; the kettle cover is arranged on the rack and located over the stirring area, the kettle cover is used for covering an opening of the reaction kettle, and the lifting assembly is located below the stirring area and used for jacking the reaction kettle to the kettle cover; the stirring assembly is arranged in the kettle cover and is used for stirring raw materials in the reaction kettle. The method has the effect of improving the continuity of each flow of the experiment.

Description

Technical Field

[0001] This application relates to the technical field of laboratory reaction devices, and in particular to a small-capacity experimental reaction device and method. Background Art

[0002] Laboratory small-capacity reaction devices are important tools for experimental research in fields such as chemistry, biology, and medicine. With the diversification and refinement of experimental requirements, higher demands are placed on the accuracy, efficiency, and safety of small-capacity reaction devices.

[0003] During the experiment, it is necessary to first proportion the raw materials, then place the raw materials in the reaction kettle, and then stir the raw materials in the reaction kettle. Usually, a stirring device is used to mix various raw materials.

[0004] Currently, common small-capacity reaction devices on the market lack an integrated design, and the two processes of proportioning and stirring in the reaction kettle are relatively separated, resulting in discontinuous experimental processes and affecting the experimental efficiency and the accuracy of results. Therefore, improvement is needed. Summary of the Invention

[0005] In order to improve the coherence of each process of the experiment, this application provides a small-capacity experimental reaction device.

[0006] In a first aspect, the small-capacity experimental reaction device provided by this application adopts the following technical solution: A small-capacity experimental reaction device includes a frame, a support platform, a reaction kettle, guide rails, a lifting assembly, a kettle cover, and a stirring assembly; The support platform is horizontally arranged on the frame and is used for placing the reaction kettle. The reaction kettle is open. The support platform includes a proportioning area and a stirring area. The bottom of the reaction kettle is connected with a plurality of rollers, and the reaction kettle is movably arranged on the support platform; The guide rails are connected to both sides of the support platform. The two guide rails are parallel to each other and are used for limiting the reaction kettle; The kettle cover is arranged on the frame and is located directly above the stirring area. The kettle cover is used to cover the opening of the reaction kettle. The lifting assembly is located below the stirring area and is used to lift the reaction kettle to the kettle cover; The stirring assembly is arranged in the kettle cover and is used for stirring the raw materials in the reaction kettle.

[0007] By adopting the above technical solution, during the experiment, the staff first place the empty reaction kettle on the proportioning area of the support platform, and then put the weighed raw materials into the reaction kettle according to the specified proportion.

[0008] Then, the reaction kettle is pushed along the guide rail to the stirring area. After the reaction kettle is placed stably, the lifting assembly is started. The lifting assembly slowly lifts the reaction kettle and makes it fit and contact with the kettle cover. At this time, the reaction kettle and the kettle cover form a closed space, and the lifting assembly controls the reaction kettle to maintain at the current height position.

[0009] Then, the stirring assembly is started. The stirring assembly stirs the mixture in the reaction kettle, and the rotation speed is adjusted according to the experimental needs during stirring. After stirring is completed, the stirring assembly is turned off, and at the same time, the lifting assembly is used to control the reaction kettle to slowly descend to avoid violent vibration. After the reaction kettle is stably placed on the support table, the reaction kettle is taken out.

[0010] Preferably, the lifting assembly includes a lifting tray and a jacking cylinder. The lifting tray is arranged on the frame in a lifting manner and is located directly below the kettle cover. The jacking cylinder is located below the lifting tray and is connected to the lifting tray. The jacking cylinder is used to control the vertical movement of the lifting tray, and the jacking cylinder has a stroke control mechanism; The lifting tray is used to support the reaction kettle. A plurality of positioning blocks are arranged on the lifting tray. Each positioning block is in the same plane and is distributed at intervals. Corresponding positioning grooves are opened at the bottom of the reaction kettle, and each positioning block is respectively clamped in each positioning groove.

[0011] By adopting the above technical solution, after the reaction kettle is transferred to the stirring area, the staff places the reaction kettle on the lifting tray, and at the same time inserts the bottom of the reaction kettle onto each positioning block. The positioning groove and the positioning block cooperate with each other, which can improve the connection stability between the reaction kettle and the lifting tray. After the reaction kettle is stably placed, the jacking cylinder is operated to control the lifting tray to move vertically upward, so that the reaction kettle gradually approaches the kettle cover.

[0012] The jacking cylinder is equipped with a stroke control mechanism. The stroke control mechanism can control the piston rod of the cylinder to stop at a predetermined position, realizing precise mechanical actions (such as clamping, pushing, jacking, etc.), and can provide continuous, stable and reliable pressure. Typical types of stroke control mechanisms include but are not limited to mechanical stoppers, magnetic switches plus solenoid valves, displacement sensors plus controllers. These belong to existing technical means and will not be elaborated here.

[0013] Preferably, the stirring assembly includes a stirring motor, a mounting disc and stirring forks. The stirring motor is arranged on the frame. The mounting disc is connected to the output shaft of the stirring motor, and the mounting disc falls within the opening range of the reaction kettle; the stirring forks are arranged on the mounting disc and are used to stir the materials in the reaction kettle.

[0014] By adopting the above technical solution, the stirring motor controls the mounting disc to rotate, and then drives the stirring forks to rotate, realizing the stirring of the raw materials in the reaction kettle by the stirring forks.

[0015] Preferably, it further includes a pressing assembly, the pressing assembly is connected to the lifting cylinder, and two groups of the pressing assemblies are symmetrically arranged, and the two pressing assemblies are jointly used to press the reaction kettle.

[0016] By adopting the above technical solution, since the lifting assembly lifts the reaction kettle to a certain height to fit and contact with the kettle cover, during the stirring process, the reaction kettle is unstable only relying on the supporting effect of the lifting tray. By adding a pressing assembly, the pressing assembly can press the reaction kettle, thereby improving the stability of the reaction kettle.

[0017] Preferably, the pressing assembly includes a fixed shell, a connecting plate, a return spring, a wedge block, an arc-shaped pressing plate and a connecting frame; The fixed shell is horizontally fixed on the frame, one end of the fixed shell is provided with an opening and forms a cavity, the return spring is arranged in the cavity and is far away from the opening of the fixed shell; both ends of the return spring are respectively connected to the fixed shell and the connecting plate, and the connecting plate is movably arranged in the cavity; The wedge block is connected to the side of the connecting plate away from the return spring, the wedge surface of the wedge block is arranged downward, and the wedge block is movably arranged in the cavity; the arc-shaped pressing plate is arranged at the opening of the fixed shell and is connected to the end of the wedge block away from the connecting plate, and the arc-shaped pressing plate is used to press the reaction kettle; One end of the connecting frame is connected to the piston rod of the lifting cylinder, and the other end passes through the fixed shell and is connected to the wedge surface of the wedge block. When the piston rod moves upward, the connecting frame drives the wedge block to move horizontally, so that the return spring is subjected to a pulling force and is stretched, and at the same time the arc-shaped pressing plate moves along the direction close to the reaction kettle.

[0018] By adopting the above technical solution, when the piston rod of the lifting cylinder extends, the lifting tray drives the reaction kettle to rise and move along the direction close to the kettle cover. At the same time, the extension of the piston rod will drive the connecting frame to rise synchronously, and the end of the connecting frame will generate a vertically upward pressure on the wedge block, thereby forcing the wedge block to move horizontally, realizing the movement of the arc-shaped pressing plate along the direction close to the reaction kettle. Under the connection of the connecting plate, the return spring will also be stretched.

[0019] When the opening of the reaction kettle abuts against the kettle cover, the arc-shaped pressing plate just fits and contacts the side wall of the reaction kettle, and the two arc-shaped pressing plates jointly press on the reaction kettle, thereby improving the stability of the reaction kettle during the stirring process.

[0020] Preferably, it further includes an electronic balance and a storage basket. The storage basket is close to the proportioning area and is used for placing raw material bottles. The electronic balance is located on one side of the storage basket and is used for weighing raw materials.

[0021] By adopting the above technical solution, raw material bottles can be placed in the storage basket, and the staff can use an electronic balance to accurately weigh the raw materials. Each raw material is prepared according to a certain proportion, and then the weighed raw materials are put into the reaction kettle.

[0022] Preferably, it further includes a vacuum tube. The vacuum tube is arranged on the frame. One end of the vacuum tube is communicated with the kettle cover, and the other end is communicated with an external vacuum generator.

[0023] By adopting the above technical solution, when the experiment needs to be carried out in a vacuum environment, the air in the reaction kettle can be pumped out by using an external vacuum generator through the vacuum tube. Since the kettle cover and the reaction kettle are sealed, a vacuum environment is created for stirring.

[0024] Preferably, it further includes an observation window. An extension column is inclinedly arranged on the kettle cover. An opening is penetrated through the extension column, and the observation window is hermetically arranged at the opening of the extension column.

[0025] By adopting the above technical solution, the observation window can transmit light. When the reaction kettle is being stirred, the staff can view the situation inside the reaction kettle through the observation window.

[0026] Preferably, a pair of handrails are arranged on the outer side wall of the reaction kettle.

[0027] By adopting the above technical solution, the presence of the handrails facilitates the staff to apply an external force to the reaction kettle, so as to better move or relocate the reaction kettle.

[0028] In a second aspect, the present application also provides a small-capacity experimental reaction method. An experiment is carried out by using the reaction device with the above-mentioned overall structure, including the following steps: S1. The staff first place the reaction kettle in the proportioning area, and then put the weighed raw materials into the reaction kettle according to the specified proportion; S2. Then move the reaction kettle along the guide rail to the stirring area, start the lifting assembly, and slowly lift the reaction kettle until it is in close contact with the kettle cover; S3. Start the stirring assembly to stir the mixture in the reaction kettle; S4. After stirring is completed, turn off the stirring assembly, slowly lower the reaction kettle by using the lifting assembly, and finally take out the reaction kettle.

[0029] In summary, the present application includes at least one of the following beneficial technical effects: (1) By setting up a support platform, a reaction kettle, guide rails, a lifting component, a kettle cover, and a stirring component, during the experiment, the staff first place the empty reaction kettle on the proportioning area of the support platform, and then put the weighed raw materials into the reaction kettle according to the specified proportion. Then, push the reaction kettle along the guide rails to translate it to the stirring area. After the reaction kettle is placed stably, start the lifting component. The lifting component slowly jacks up the reaction kettle and makes it fit and contact with the kettle cover. Then, start the stirring component. The stirring component stirs the mixture in the reaction kettle, and adjusts the rotation speed according to the experimental needs during stirring. After stirring is completed, turn off the stirring component, and at the same time, use the lifting component to control the reaction kettle to slowly descend. After the reaction kettle is stably placed on the support platform, take out the reaction kettle. The entire experimental reaction device has a compact structure, and the proportioning and stirring processes are coherent, improving the experimental accuracy and being suitable for small-capacity reaction experiments in the laboratory.

[0030] (2) By setting up a pressing component, the pressing component can press the reaction kettle, thereby improving the stability of the reaction kettle during stirring.

[0031] (3) By setting up a vacuum tube, when the experiment needs to be carried out in a vacuum environment, the air in the reaction kettle can be pumped out by using an external vacuum generator through the vacuum tube to create a vacuum environment for the raw material stirring. Description of the Drawings

[0032] Figure 1 is a schematic structural diagram of the experimental reaction device in an embodiment of the present application; Figure 2 is a schematic structural diagram of the experimental reaction device from another perspective in an embodiment of the present application; Figure 3 is a schematic partial structural diagram of the experimental reaction device in an embodiment of the present application; Figure 4 is a schematic structural diagram of the stirring component in an embodiment of the present application; Figure 5 is a schematic structural diagram of the experimental reaction device in another embodiment of the present application; Figure 6 is a schematic partial structural diagram of the experimental reaction device in another embodiment of the present application; Figure 7 is a schematic cross-sectional view of the pressing component, the lifting component, and the reaction kettle in another embodiment of the present application.

[0033] Reference numerals: 1, frame; 2, support platform; 3, reactor; 4, guide rail; 5, lifting assembly; 51, lifting tray; 52, jacking cylinder; 6, kettle lid; 7, stirring assembly; 71, stirring motor; 72, mounting plate; 73, stirring fork; 8, roller; 9, proportioning area; 10, stirring area; 11, electronic balance; 12, storage basket; 13, positioning block; 14, extension column; 15, observation window; 16, vacuum tube; 17, pressing assembly; 171, fixed shell; 172, connecting plate; 173, return spring; 174, wedge block; 175, arc-shaped pressing plate; 176, connecting frame; 18, handrail. Detailed implementation manners

[0034] Next, the technical solutions of the present application will be described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can be embodied in many different forms and is not limited to the embodiments described herein.

[0035] In the description of the present application, the reference terms "an embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented by combining the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in any one or more embodiments or examples in a suitable manner.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0037] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation" etc. should be understood in a broad sense. For example, it can be a fixed connection; it can also be a detachable connection; or integrated; it can also be a mechanical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0038] Next, some embodiments of the present application will be described in detail with reference to the drawings. Without conflict, those skilled in the art can combine and combine the different embodiments or examples represented in the present application and the features of different embodiments or examples.

[0039] The embodiments of the present application disclose a small-capacity experimental reaction device. Refer toFigure 1 and Figure 2 , the experimental reaction device includes a frame 1, a support table 2, a reaction kettle 3, guide rails 4, a lifting assembly 5, a kettle cover 6 and a stirring assembly 7. The frame 1 serves as a carrier and is fixedly installed on the ground. The support table 2 is fixedly installed on the frame 1 and is horizontally arranged. The support table 2 is used for placing the reaction kettle 3. The reaction kettle 3 is open at the top, and raw materials can be placed in the cavity inside the reaction kettle 3. A plurality of rollers 8 are fixedly connected to the bottom of the reaction kettle 3, so that the reaction kettle 3 can move horizontally on the support table 2. The guide rails 4 are fixedly connected to both sides of the support table 2, and the two guide rails 4 are parallel to each other, and are used for limiting the movement of the reaction kettle 3. Among them, two handrails 18 are also fixedly connected to the outer side wall of the reaction kettle 3, and the two handrails 18 are symmetrically arranged. The presence of the handrails 18 facilitates the staff to apply an external force to the reaction kettle 3, so as to better move or relocate the reaction kettle 3.

[0040] The support table 2 includes a proportioning area 9 and a stirring area 10. The kettle cover 6 is fixedly installed on the frame 1 and is located directly above the stirring area 10. The kettle cover 6 is hollow and is used to cover the opening of the reaction kettle 3. To improve the sealing performance between the kettle cover 6 and the reaction kettle 3, a sealing ring can also be provided on the side of the kettle cover 6 facing the reaction kettle 3. The lifting assembly 5 is located below the stirring area 10 and is used to lift the reaction kettle 3 onto the kettle cover 6. The stirring assembly 7 is installed inside the kettle cover 6 and is used to stir the raw materials in the reaction kettle 3.

[0041] During the experimental operation process, the staff first place the empty reaction kettle 3 in the proportioning area 9 of the support table 2, and then put the weighed raw materials into the reaction kettle 3 according to the established ratio.

[0042] After the feeding is completed, push the reaction kettle 3 to translate along the guide rails 4 towards the stirring area 10. After the reaction kettle 3 is stably positioned in the stirring area 10, start the lifting assembly 5. The lifting assembly 5 vertically lifts the reaction kettle 3 at a uniform speed until it is completely sealed and fitted with the kettle cover 6. At this time, the reaction kettle 3 and the kettle cover 6 form a closed reaction space, and the lifting assembly 5 synchronously locks the current height position of the reaction kettle 3.

[0043] Then start the stirring assembly 7 to perform a stirring operation on the mixture in the reaction kettle 3. During the stirring process, the rotation speed can be dynamically adjusted according to the experimental requirements. After the stirring process is completed, first turn off the stirring assembly 7, and then control the reaction kettle 3 to slowly descend through the lifting assembly 5 to avoid violent vibration. After the reaction kettle 3 stably falls onto the surface of the support table 2, then perform the discharging or taking-out operation.

[0044] Specifically, an electronic balance 11 and a storage basket 12 are respectively installed on the frame 1. The storage basket 12 is close to the proportioning area 9 and is horizontally arranged. The storage basket 12 is used for placing raw material bottles. The electronic balance 11 is horizontally placed on the frame 1 and is located on one side of the storage basket 12. The electronic balance 11 is used for weighing raw materials.

[0045] Combined with Figure 3 , the lifting assembly 5 includes a lifting tray 51 and a jacking cylinder 52. The lifting tray 51 is arranged to be lifted on the frame 1. The lifting tray 51 is located above the support table 2 and directly below the kettle lid 6. The lifting tray 51 is used to support the reaction kettle 3. A number of positioning blocks 13 are fixedly connected to the lifting tray 51. The positioning blocks 13 are in the same plane and are spaced apart. Corresponding positioning grooves are formed at the bottom of the reaction kettle 3, and each positioning block 13 is respectively clamped in each positioning groove. The jacking cylinder 52 is fixed on the frame 1 and is located directly below the lifting tray 51. The piston rod of the jacking cylinder 52 is connected to the lifting tray 51 and is used to control the vertical up and down movement of the lifting tray 51. In this embodiment, the jacking cylinder 52 is equipped with a stroke control mechanism.

[0046] After the reaction kettle 3 is transferred to the stirring area 10, the staff needs to accurately place the reaction kettle 3 on the lifting tray 51, and at the same time ensure that the bottom of the reaction kettle 3 is in plug-in fit with each positioning block 13. Through the mutual engagement of the positioning groove and the positioning block 13, the stability of the connection structure between the reaction kettle 3 and the lifting tray 51 can be effectively improved. After the reaction kettle 3 is stably positioned, the jacking cylinder 52 is started to drive the lifting tray 51 to move upward in the vertical direction, so that the reaction kettle 3 gradually approaches the position of the kettle lid 6. The stroke control mechanism of the jacking cylinder 52 can control the piston rod of the cylinder to stop at a predetermined position, realize an accurate jacking action, provide continuous, stable and reliable pressure, and ensure the abutment of the reaction kettle 3 and the kettle lid 6.

[0047] Combined with Figure 4 , the stirring assembly 7 includes a stirring motor 71, a mounting plate 72 and stirring forks 73. The stirring motor 71 is mounted on the frame 1. The mounting plate 72 is fixedly connected to the output shaft of the stirring motor 71. The mounting plate 72 is within the opening range of the reaction kettle 3. The stirring forks 73 are fixedly connected to the side of the mounting plate 72 away from the stirring motor 71. The stirring forks 73 are used to stir the materials in the reaction kettle 3. The stirring motor 71 controls the mounting plate 72 to rotate, and then drives the stirring forks 73 to rotate, realizing the stirring of the raw materials in the reaction kettle 3 by the stirring forks 73.

[0048] Among them, an extension column 14 is inclinedly arranged on the kettle cover 6. A notch is penetrated through the extension column 14, and an observation window 15 is hermetically arranged at the notch. The observation window 15 is made of a transparent material, and the transparent material includes but is not limited to glass and acrylic plates. When the reaction kettle 3 is being stirred, the staff can view the inside of the reaction kettle 3 through the observation window 15. A vacuum tube 16 is also communicatedly arranged on the kettle cover 6. One end of the vacuum tube 16 far from the kettle cover 6 is communicated with an external vacuum generator, and the vacuum generator is used for evacuating. When the experiment needs to be carried out in a vacuum environment, the external vacuum generator can be used to extract the air in the reaction kettle 3 through the vacuum tube 16. Since the kettle cover 6 and the reaction kettle 3 are sealed, a vacuum environment can be created for stirring, and then the experiment can be carried out.

[0049] Referring to Figures 5 to 7 , in addition, in some embodiments, a pressing assembly 17 is also installed on the frame 1. The pressing assembly 17 is connected to the lifting cylinder 52 and is symmetrically arranged in two groups. The two pressing assemblies 17 are jointly used to press the reaction kettle 3. The pressing assembly 17 includes a fixed shell 171, a connecting plate 172, a return spring 173, a wedge block 174, an arc-shaped pressing plate 175 and a connecting frame 176.

[0050] The fixed shell 171 is horizontally arranged and fixedly connected to the frame 1. The fixed shell 171 is rectangular and has an open end at one end, so that the fixed shell 171 forms a rectangular cavity. The return spring 173 is installed in the cavity and is at the end far from the opening of the fixed shell 171. The connecting plate 172 is also located in the cavity. The two ends of the return spring 173 are respectively connected to the fixed shell 171 and the connecting plate 172. The connecting plate 172 is movably installed in the fixed shell 171, and the connecting plate 172 realizes linear movement through the cooperation of a slider and a chute.

[0051] The wedge block 174 is located in the cavity and is also movably connected in the fixed shell 171. The wedge block 174 is fixedly connected to the side of the connecting plate 172 far from the return spring 173. The wedge block 174 also realizes linear movement by relying on the cooperation of a slider and a chute. In this embodiment, the wedge surface of the wedge block 174 is arranged downward. The arc-shaped pressing plate 175 is at the opening of the fixed shell 171 and is fixedly connected to the end of the wedge block 174 far from the connecting plate 172. The arc opening of the arc-shaped pressing plate 175 faces the reaction kettle 3. The wedge block 174 is used to drive the arc-shaped pressing plate 175 to move horizontally, and the arc-shaped pressing plate 175 is used to press the reaction kettle 3. The connecting frame 176 is L-shaped. One end of the connecting frame 176 is connected to the piston rod of the lifting cylinder 52, and the other end passes through the lower end of the fixed shell 171 and is connected to the wedge surface of the wedge block 174.

[0052] When the piston rod of the lifting cylinder 52 extends, the lifting tray 51 drives the reaction kettle 3 to rise and move in the direction close to the kettle cover 6. At the same time, the extension of the piston rod will drive the connecting frame 176 to rise synchronously. Since the fixed shell 171 is fixed on the frame 1, it will not move. The end of the connecting frame 176 will exert a vertically upward pressure on the wedge block 174, thereby forcing the wedge block 174 to move horizontally, realizing the movement of the arc-shaped pressing plate 175 in the direction close to the reaction kettle 3. Under the connection action of the connecting plate 172, the return spring 173 will also be stretched. Among them, one end of the connecting frame 176 located inside the fixed shell 171 can be connected with a universal ball, and a rolling groove for the universal ball to move can be opened on the wedge surface of the wedge block 174, so that the connecting frame 176 can better push the wedge block 174 to move.

[0053] When the opening of the reaction kettle 3 abuts against the kettle cover 6, the arc-shaped pressing plate 175 just fits and contacts the side wall of the reaction kettle 3. The two arc-shaped pressing plates 175 jointly press on the reaction kettle 3. At this time, the lifting cylinder 52 no longer extends, realizing the improvement of the stability of the reaction kettle 3 during the stirring process.

[0054] The implementation principle of the small-capacity experimental reaction device in the embodiment of the present application is as follows: During the experiment, the staff first place the empty reaction kettle 3 on the proportioning area 9 of the support table 2, and then put the weighed raw materials into the reaction kettle 3 according to the specified proportion.

[0055] Then push the reaction kettle 3 to translate along the guide rail 4 to the stirring area 10. The staff hold the reaction kettle 3 steadily on the lifting tray 51 with both hands, and then start the lifting cylinder 52. The lifting cylinder 52 slowly lifts the reaction kettle 3 and makes it fit and contact with the kettle cover 6.

[0056] Then start the stirring component 7. The stirring component 7 stirs the mixture in the reaction kettle 3, and adjusts the rotation speed according to the experimental needs during stirring. After stirring is completed, turn off the stirring component 7, and at the same time use the lifting component 5 to control the reaction kettle 3 to slowly descend. After the reaction kettle 3 is steadily placed on the support table 2, take out the reaction kettle 3. The entire experimental reaction device has a compact structure, and the proportioning and stirring processes are coherent, improving the experimental accuracy and being suitable for small-capacity reaction experiments in the laboratory.

[0057] Based on the above embodiments, the embodiment of the present application also provides a small-capacity experimental reaction method. This method uses the experimental reaction device with all the above structures for experiments, including the following steps: S1. The staff first place the reaction kettle 3 in the proportioning area 9, and then put the weighed raw materials into the reaction kettle 3 according to the specified proportion; S2. Next, apply force to translate the reaction kettle 3 along the guide rail 4 to the stirring area 10. First, place the reaction kettle 3 stably on the lifting tray 51, and then start the lifting cylinder 52 to slowly lift the reaction kettle 3 and make it in contact with the kettle lid 6. S3. Then start the stirring assembly 7 to stir the mixture in the reaction kettle 3. S4. After stirring is completed, turn off the stirring assembly 7, slowly lower the reaction kettle 3 by using the lifting assembly 5, and finally take out the reaction kettle 3.

[0058] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A small-capacity experimental reaction device, characterized in that: It comprises a frame (1), a support platform (2), a reaction kettle (3), a guide rail (4), a lifting component (5), a kettle cover (6) and a stirring component (7); The support platform (2) is horizontally arranged on the frame (1) and is used for placing the reaction kettle (3), and the reaction kettle (3) is arranged with an opening; the support platform (2) comprises a proportioning area (9) and a stirring area (10), a plurality of rollers (8) are connected to the bottom of the reaction kettle (3), and the reaction kettle (3) is movably arranged on the support platform (2); The guide rails (4) are connected to two sides of the support platform (2), the two guide rails (4) are parallel to each other, and are used to limit the position of the reaction kettle (3); The kettle cover (6) is arranged on the frame (1) and is located directly above the stirring zone (10); the kettle cover (6) is used to cover the opening of the reaction kettle (3); the lifting assembly (5) is located below the stirring zone (10) and is used to lift the reaction kettle (3) onto the kettle cover (6); The stirring component (7) is arranged in the kettle cover (6) and is used to stir the raw materials in the reaction kettle (3).

2. A small-capacity experimental reaction device according to claim 1, characterized in that: The lifting assembly (5) comprises a lifting tray (51) and a lifting cylinder (52); the lifting tray (51) is lifted and arranged on the frame (1) and is located directly below the kettle cover (6); the lifting cylinder (52) is located below the lifting tray (51) and is connected to the lifting tray (51); the lifting cylinder (52) is used to control the vertical movement of the lifting tray (51); and the lifting cylinder (52) has a stroke control mechanism; The lifting tray (51) is used to support the reaction kettle (3). A plurality of positioning blocks (13) are arranged on the lifting tray (51). The positioning blocks (13) are located in the same plane and are spaced apart. A plurality of positioning grooves are correspondingly provided at the bottom of the reaction kettle (3). The positioning blocks (13) are respectively snapped into the positioning grooves.

3. A small-capacity experimental reaction device according to claim 1, characterized in that: The stirring assembly (7) comprises a stirring motor (71), a mounting plate (72) and a stirring fork (73); the stirring motor (71) is arranged on the frame (1); the mounting plate (72) is connected to the output shaft of the stirring motor (71); the mounting plate (72) falls within the opening range of the reaction kettle (3); and the stirring fork (73) is arranged on the mounting plate (72) and is used to stir the material in the reaction kettle (3).

4. A small-capacity experimental reaction device according to claim 2, characterized in that: It also includes a clamping assembly (17), the clamping assembly (17) being connected to the lifting cylinder (52), the clamping assembly (17) being symmetrically arranged in two groups, and the two clamping assemblies (17) being used together to clamp the reaction kettle (3).

5. A small-capacity experimental reaction device according to claim 4, characterized in that: The clamping assembly (17) comprises a fixed shell (171), a connecting plate (172), a return spring (173), a wedge block (174), an arc-shaped pressing plate (175) and a connecting frame (176); The fixed shell (171) is horizontally fixed on the frame (1); one end of the fixed shell (171) is open and forms a cavity; the return spring (173) is arranged in the cavity and is away from the opening of the fixed shell (171); two ends of the return spring (173) are respectively connected to the fixed shell (171) and the connecting plate (172); the connecting plate (172) is movably arranged in the cavity; The wedge block (174) is connected to a side of the connecting plate (172) away from the return spring (173), the wedge surface of the wedge block (174) is arranged downward, and the wedge block (174) is movably arranged in the cavity; the arc-shaped pressing plate (175) is arranged at the opening of the fixed shell (171) and is connected to an end of the wedge block (174) away from the connecting plate (172), and the arc-shaped pressing plate (175) is used to press the reaction kettle (3); One end of the connecting frame (176) is connected to the piston rod of the lifting cylinder (52), and the other end passes through the fixed shell (171) and is connected to the wedge surface of the wedge block (174). When the piston rod moves upward, the connecting frame (176) drives the wedge block (174) to move horizontally, so that the return spring (173) is subjected to tension and is stretched, and at the same time, the arc pressure plate (175) moves in a direction close to the reactor (3).

6. A small-capacity experimental reaction device according to claim 1, characterized in that: It also includes an electronic scale (11) and a storage basket (12), wherein the storage basket (12) is close to the proportioning area (9) and is used to place the raw material bottles, and the electronic scale (11) is located on one side of the storage basket (12) and is used to weigh the raw materials.

7. A small-capacity experimental reaction device according to claim 1, characterized in that: It also comprises a vacuum tube (16), wherein the vacuum tube (16) is arranged on the frame (1), one end of the vacuum tube (16) is connected to the kettle cover (6), and the other end of the vacuum tube (16) is connected to an external vacuum generator.

8. A small-capacity experimental reaction device according to claim 1, characterized in that: It also comprises an observation window (15), an extension column (14) is obliquely arranged on the kettle cover (6), an opening is penetrated through the extension column (14), and the observation window (15) is sealed at the opening of the extension column (14).

9. A small-capacity experimental reaction device according to claim 1, characterized in that: A pair of handrails (18) are provided on the outer side wall of the reaction kettle (3).

10. A method for conducting an experiment using the small-capacity experimental reaction device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The staff first places the reaction kettle (3) in the proportioning area (9), and then puts the weighed raw materials into the reaction kettle (3) according to the specified proportion; S2, then the reaction kettle (3) is translated along the guide rail (4) to the stirring zone (10), the lifting assembly (5) is started, and the reaction kettle (3) is slowly lifted up and brought into contact with the kettle cover (6); S3, starting the stirring component (7) to stir the mixture in the reaction kettle (3); S4. After the stirring is completed, the stirring component (7) is turned off, and the reaction kettle (3) is slowly lowered using the lifting component (5), and finally the reaction kettle (3) is taken out.

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