Integrated preparation device for precious metal nanoparticles

Abstract

The embodiment of the invention discloses an integrated preparation device for precious metal nanoparticles, and relates to the technical field of chemical equipment. The preparation device comprises a mounting frame; the reaction bin is fixed on the mounting frame, and a stirring through hole is formed in the top of the reaction bin; the stirring mechanism is fixed on the mounting frame and extends into the reaction bin through the stirring through hole; the at least one solution bottle is arranged on the mounting rack and is used for loading a to-be-reacted solution, and the height of the bottom of the solution bottle is greater than that of the top of the reaction bin; the driving mechanism is arranged on the mounting frame; the siphon is fixed to the driving end of the driving mechanism, and the driving mechanism can drive the siphon to move in the height direction; the drying mechanism is arranged on one side of the mounting frame, and the drying output end of the drying mechanism is communicated with the reaction bin. The preparation process of the precious metal nanoparticles can be effectively simplified, and the preparation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of chemical equipment, and in particular to an integrated preparation device for precious metal nanoparticles. Background Art

[0002] In the related art, the method for obtaining precious metal nanoparticles is a chemical reduction method, which requires steps such as stirring, mixing, mixing and drying of multiple solutions. Each step requires the use of different equipment. After one step is completed, the solution in the equipment needs to be taken out and transferred to the equipment needed for the next step, resulting in a complicated preparation process of precious metal nanoparticles and a low degree of automation. Summary of the invention

[0003] The embodiment of the present application provides an integrated preparation device for precious metal nanoparticles, which is used to improve the problem that the preparation of precious metal nanoparticles needs to be transferred to multiple devices for separate execution, resulting in a relatively complicated preparation process.

[0004] In a first aspect, an embodiment of the present application provides an integrated preparation device for precious metal nanoparticles, comprising:

[0005] Mounting frame;

[0006] A reaction chamber is fixed on the mounting frame, and a stirring through hole is provided on the top of the reaction chamber;

[0007] A stirring mechanism, fixed on the mounting frame and extending into the reaction chamber through the stirring through hole;

[0008] At least one solution bottle, which is arranged on the mounting frame and is used to load the liquid to be reacted, and the bottom of the solution bottle is at a height greater than the top of the reaction chamber;

[0009] A driving mechanism, arranged on the mounting frame;

[0010] A siphon tube is fixed to the driving end of the driving mechanism, and the driving mechanism can drive the siphon tube to move in the height direction;

[0011] A drying mechanism is arranged on one side of the mounting frame, and a drying output end of the drying mechanism is connected to the reaction chamber;

[0012] Wherein, the siphon comprises a first pipe segment, a second pipe segment, a third pipe segment and a fourth pipe segment, one end of the first pipe segment is connected to one end of the second pipe segment through a first U-shaped pipe, the other end of the second pipe segment is connected to one end of the third pipe segment through a second U-shaped pipe, and the other end of the third pipe segment is connected to the fourth pipe segment through a third U-shaped pipe;

[0013] The driving mechanism includes a driving siphon mode. When the driving mechanism is in the driving siphon mode, the driving mechanism can drive the siphon tube to move toward the bottom of the solution bottle, so that the end of the first tube segment facing away from the second tube segment is located in the solution bottle, the fourth tube segment is located outside the solution bottle, and the end of the fourth tube segment facing away from the third tube segment is located in the reaction chamber, the first tube segment, the first U-shaped tube, the second tube segment, the second U-shaped tube, the third tube segment and a part of the third U-shaped tube close to the third tube segment are all located below the liquid surface of the liquid to be reacted, and the height of the second U-shaped tube is greater than the height of the end of the first tube segment facing away from the first U-shaped tube.

[0014] In some embodiments of the present application, the driving mechanism includes a driving motor, a turntable, a first driving tooth arm, a first fixed plate and a first reciprocating gear rod, the driving motor is fixed on the mounting frame, the center of the turntable is connected to the output end of the driving motor, and a first active column is provided on the edge of the turntable surface on the side away from the driving motor, the first driving tooth arm includes a first driving rod and a first fan-shaped toothed disc, the first driving rod is provided with a first waist-shaped groove, the first active column is sleeved in the first waist-shaped groove, one end of the first driving rod is connected to the first fan-shaped toothed disc, the first fixed plate is fixed to the mounting frame, the first reciprocating gear rod is movably sleeved on the first fixed plate, the axial surface of the first reciprocating gear rod is meshed with the teeth on the side of the first fan-shaped toothed disc away from the first driving rod, and the axial surface of the first reciprocating gear rod is connected to the third U-shaped tube or the fourth tube section of the siphon tube.

[0015] In some embodiments of the present application, the driving mechanism also includes a second driving tooth arm, a second fixed plate and a second reciprocating gear rod. A second active column is provided at the edge of the disk surface on the side of the turntable facing away from the driving motor. The second driving tooth arm includes a second driving rod and a second fan-shaped gear disk. The second driving rod is provided with a second waist-shaped groove, and the second active column is sleeved in the second waist-shaped groove. One end of the second driving rod is connected to the second fan-shaped gear disk. The second fixed plate is fixed to the mounting frame. The second reciprocating gear rod is movably sleeved on the second fixed plate. The axial surface of the second reciprocating gear rod is meshed with the teeth on the side of the second fan-shaped gear disk facing away from the second driving rod.

[0016] In some embodiments of the present application, the first active column and the second active column are centrally symmetrical.

[0017] In some embodiments of the present application, there are multiple solution bottles, and the multiple solution bottles are fixed on the mounting frame and arranged around the reaction chamber. The number of siphon tubes is equal to the number of solution bottles, and the liquid inlet end of each siphon tube is arranged in alignment with one solution bottle, and the liquid outlet end of each siphon tube is arranged in alignment with the reaction chamber, and the number of the driving mechanisms is one half of the number of the siphon tubes.

[0018] In some embodiments of the present application, the number of the solution bottles is two, including a first solution bottle and a second solution bottle, the number of the siphon tubes is two, including a first siphon tube and a second siphon tube, the first reciprocating gear rod is connected to the first siphon tube, and the liquid inlet of the first siphon tube is arranged in alignment with the first solution bottle, the second reciprocating gear rod is connected to the second siphon tube, and the liquid inlet of the second siphon tube is arranged in alignment with the second solution bottle.

[0019] In some embodiments of the present application, the driving mechanism further includes a reducer connected between the driving motor and the turntable.

[0020] In some embodiments of the present application, the siphon tube includes a plurality of sub-section tubes, the first tube segment, the second tube segment, the third tube segment and the fourth tube segment are all composed of a plurality of sub-section tubes sealed together, and adjacent sub-section tubes are detachably connected; the solution bottle includes a plurality of annular bottle bodies, and the plurality of annular bottle bodies are detachably and sealably connected in sequence along the height direction.

[0021] In some embodiments of the present application, the stirring mechanism includes a stirring motor and a stirring rod. The stirring motor is arranged on the mounting bracket and located on the top of the reaction chamber. One end of the stirring rod is connected to the output end of the stirring motor, and the other end is located in the reaction chamber, and the stirring rod is arranged at an angle.

[0022] In some embodiments of the present application, a discharge port is provided at the bottom of the reaction bin and an electric valve is provided at the discharge port. The preparation device also includes a material receiving storage bin, and the bin opening of the material receiving storage bin is arranged to be aligned with the discharge port.

[0023] It can be seen that the embodiment of the present application is mainly to integrate the mounting frame, reaction chamber, stirring mechanism, solution bottle, driving mechanism, siphon and drying mechanism into one device, so that the preparation device can stir a variety of solutions separately, and mix, mix and stir, and dry a variety of stirred solutions. The whole process does not need to transfer the solution, simplifying the preparation process of precious metal nanoparticles. The above four processes only need to be completed in one device, which improves efficiency. In detail, the liquid required is loaded mainly by using the solution bottle, and then the liquid is automatically transported to the reaction chamber by using the siphon and driving mechanism, and then the liquid is stirred for standby by using the stirring mechanism. The whole process is automatic, which reduces the labor intensity. Then the second liquid is transported and stirred until all liquids are transported to the reaction chamber, and a variety of liquids react in the reaction chamber to obtain metal nanoparticles with liquids, and then the drying mechanism is used to dry the metal nanoparticles, and finally the preparation of metal nanoparticles is completed. It should be noted that in the case where the liquids cannot be put into the reaction chamber one by one, multiple solution bottles can also be used to transport a variety of solutions to the reaction chamber at the same time to complete the mixing and reaction of a variety of liquids. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic structural diagram of an integrated preparation device for noble metal nanoparticles provided in an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the structure of a siphon tube in an integrated preparation device for noble metal nanoparticles provided in an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the structure of a driving mechanism in an integrated preparation device for noble metal nanoparticles provided in an embodiment of the present invention;

[0028] Figure 4 A schematic structural diagram of another driving mechanism in an integrated device for preparing noble metal nanoparticles provided in an embodiment of the present invention;

[0029] Figure 5 A schematic structural diagram of a solution bottle in an integrated preparation device for precious metal nanoparticles provided in an embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 1. Mounting frame; 2. Reaction chamber; 21. Discharge port; 3. Stirring mechanism; 31. Stirring motor; 32. Stirring rod; 4. Solution bottle; 41. Ring-shaped bottle body; 5. Driving mechanism; 51. Driving motor; 52. Turntable; 521. First active column; 522. Second active column; 53. First driving tooth arm; 531. First driving rod; 5311. First waist-shaped groove; 532. First fan-shaped tooth disk; 54. First fixed plate; 57. First reciprocating tooth rod; 58. Second driving tooth arm; 581. Second driving rod; 5811. Second waist-shaped groove; 582. Second fan-shaped tooth disk; 59. Second fixed plate; 591. Second reciprocating tooth rod; 6. Siphon; 61. First pipe section; 62. Second pipe section; 63. Third pipe section; 64. Fourth pipe section; 65. First U-shaped tube; 66. Second U-shaped tube; 67. Third U-shaped tube. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0033] In the description of this application, it should be understood that the words "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] See also Figures 1 to 4 ,,The embodiment of the present application provides an integrated preparation device for precious metal nanoparticles, comprising:

[0035] Mounting frame 1;

[0036] A reaction chamber 2 is fixed on the mounting frame 1, and a stirring through hole is provided on the top of the reaction chamber 2;

[0037] A stirring mechanism 3, fixed on the mounting frame 1 and extending into the reaction chamber 2 through the stirring through hole;

[0038] At least one solution bottle 4, the solution bottle 4 is arranged on the mounting frame 1, and is used to load the liquid to be reacted, and the height of the bottom of the solution bottle 4 is greater than the height of the top of the reaction chamber 2;

[0039] A driving mechanism 5 is provided on the mounting frame 1;

[0040] The siphon tube 6 is fixed to the driving end of the driving mechanism 5, and the driving mechanism 5 can drive the siphon tube 6 to move in the height direction;

[0041] A drying mechanism is provided on one side of the mounting frame 1, and a drying output end of the drying mechanism is connected to the reaction chamber 2;

[0042] The siphon 6 includes a first pipe segment 61, a second pipe segment 62, a third pipe segment 63 and a fourth pipe segment 64, one end of the first pipe segment 61 is connected to one end of the second pipe segment 62 via a first U-shaped pipe 65, the other end of the second pipe segment 62 is connected to one end of the third pipe segment 63 via a second U-shaped pipe 66, and the other end of the third pipe segment 63 is connected to the fourth pipe segment 64 via a third U-shaped pipe 67;

[0043] The driving mechanism 5 includes a driving siphon mode. When the driving mechanism 5 is in the driving siphon mode, the driving mechanism 5 can drive the siphon tube 6 to move toward the bottom of the solution bottle 4, so that the end of the first tube segment 61 away from the second tube segment 62 is located in the solution bottle 4, the fourth tube segment 64 is located outside the solution bottle 4, and the end of the fourth tube segment 64 away from the third tube segment 63 is located in the reaction chamber 2, the first tube segment 61, the first U-shaped tube 65, the second tube segment 62, the second U-shaped tube 66, the third tube segment 63 and a part of the third U-shaped tube 67 close to the third tube segment 63 are all located below the liquid surface of the liquid to be reacted, and the height of the second U-shaped tube 66 is greater than the height of the end of the first tube segment 61 away from the first U-shaped tube 65.

[0044] The technical solution provided by the present application is mainly to integrate the mounting frame 1, the reaction chamber 2, the stirring mechanism 3, the solution bottle 4, the driving mechanism 5, the siphon 6 and the drying mechanism (not shown in the figure) into a device, so that the preparation device can stir a variety of solutions separately, and mix, mix and stir, and dry a variety of stirred solutions. The whole process does not need to transfer the solution, simplifying the preparation process of precious metal nanoparticles. The above four processes only need to be completed in one device to improve efficiency. In detail, the liquid required is loaded by using the solution bottle 4, and then the liquid is automatically transported to the reaction chamber 2 by using the siphon 6 and the driving mechanism 5, and then the liquid is stirred for standby by using the stirring mechanism 3. The whole process is automatic, which reduces the labor intensity. Then the second liquid is transported and stirred until all the liquids are transported to the reaction chamber 2, and the various liquids react in the reaction chamber 2 to obtain metal nanoparticles with liquids, and then the drying mechanism is used to dry the metal nanoparticles, and finally the preparation of the metal nanoparticles is completed. It should be noted that, if the liquids cannot be put into the reaction chamber 2 one by one, multiple solution bottles 4 can also be used to simultaneously transport multiple solutions into the reaction chamber 2 to complete the mixing and reaction of the multiple liquids.

[0045] The mounting frame 1 is used to fix all components to ensure the stability of the device and the relative position of each component. The reaction chamber 2 is fixed on the mounting frame 1 and is the main area for chemical reactions. The top of the reaction chamber 2 is designed with a stirring through hole, which is convenient for the stirring mechanism 3 to be inserted therein for mixing and stirring. The stirring mechanism 3 includes a stirring motor 31 and a stirring rod 32. The stirring motor 31 is fixed on the top of the mounting frame 1, and its output end is connected to the stirring rod 32. The stirring rod 32 enters the reaction chamber 2 through the stirring through hole and is set to an inclined state to ensure uniform mixing of the entire reaction liquid. During the stirring process, the motor drives the stirring rod 32 to rotate, so that the precious metal precursor and the reducing agent in the solution are fully in contact, promoting the uniform progress of the reaction. The solution bottle 4 is used to store different reaction solutions, such as precious metal precursor solutions and reducing agent solutions. The solution bottle 4 is fixed on the mounting frame 1 and is designed to be higher than the reaction chamber 2 to use gravity to assist the siphon transfer of the liquid. Through such a design, when the siphon action is started, the liquid can flow smoothly from the solution bottle 4 into the reaction chamber 2. The siphon tube 6 is a key component for realizing automatic liquid transfer. It includes four pipe sections and three U-shaped tubes, forming a continuous liquid flow channel. The design of the siphon tube 6 utilizes the siphon principle and drives the liquid flow through the liquid level difference. The first pipe section 61 of the siphon tube 6 is inserted into the solution bottle 4 through the driving mechanism 5, and the liquid flows along the siphon tube 6 under the action of gravity. The height of the second U-shaped tube 66 is designed to be higher than the end of the first pipe section 61 to ensure the continuity of the liquid flow and prevent air from entering and destroying the siphon effect. The driving mechanism 5 realizes precise control of the siphon tube 6 through components such as the driving motor 51, the turntable 52, the tooth arm and the tooth rod. The driving motor 51 drives the turntable 52 to rotate, and the tooth arm on the turntable 52 is connected to the siphon tube 6 through the tooth rod, thereby controlling the lifting and lowering of the siphon tube 6. When the first pipe section 61 of the siphon tube 6 descends into the solution bottle 4 and reaches a sufficient liquid level difference, the siphon action is activated, and the liquid is automatically transferred to the reaction chamber 2. The precise control of the driving mechanism 5 ensures the accuracy and consistency of each liquid transfer. After the reaction is completed, the drying mechanism is started to dry the solution after the reaction. The dried precious metal nanoparticles are discharged through the discharge port 21 at the bottom of the reaction chamber 2 and enter the receiving storage chamber (not shown in the figure). An electric valve is designed at the discharge port 21 to control the discharge of particles and ensure accurate control of each discharge.

[0046] In some embodiments, see Figure 3The driving mechanism 5 includes a driving motor 51, a rotating disk 52, a first driving tooth arm 53, a first fixing plate 54 and a first reciprocating tooth rod 57. The driving motor 51 is fixed to the mounting frame 1. The center of the rotating disk 52 is connected to the output end of the driving motor 51. A first active column 521 is provided on the edge of the rotating disk 52 on the side away from the driving motor 51. The first driving tooth arm 53 includes a first driving rod 531 and a first fan-shaped toothed disk 532. The first driving rod 531 is provided with a first waist-shaped groove 5311. The first active column 521 is provided on the edge of the rotating disk 52 on the side away from the driving motor 51. The moving column 521 is sleeved in the first waist-shaped groove 5311, one end of the first driving rod 531 is connected to the first fan-shaped toothed disc 532, the first fixed plate 54 is fixed on the mounting frame 1, the first reciprocating gear rod 57 is movably sleeved on the first fixed plate 54, the axial surface of the first reciprocating gear rod 57 is engaged with the side teeth of the first fan-shaped toothed disc 532 away from the first driving rod 531, and the axial surface of the first reciprocating gear rod 57 is connected to the third U-shaped tube 67 or the fourth tube section 64 of the siphon tube 6.

[0047] In detail, the driving motor 51 is fixed on the mounting frame 1 and serves as the power source of the entire driving system. The turntable 52 is connected to the output end of the driving motor 51 and is responsible for transmitting the rotational motion of the motor to the tooth arm and the tooth rod. The edge of the turntable 52 is provided with a first active column 521, which is inserted into the waist-shaped groove of the first driving tooth arm 53. The design of the waist-shaped groove allows the active column to drive the tooth arm to move when the turntable 52 rotates, generating linear reciprocating motion. One end of the first driving tooth arm 53 is connected to the first sector tooth disc 532, and the other end is connected to the active column of the turntable 52 through the first waist-shaped groove 5311. When the turntable 52 rotates, the active column moves along the waist-shaped groove, pushing the tooth arm to swing in an arc, and the swing of the tooth arm further drives the sector tooth disc to rotate. The first fixed plate 54 is used to fix the first reciprocating tooth rod 57 so that it moves on a fixed track. The first reciprocating tooth rod 57 is meshed with the teeth of the sector tooth disc, and under the drive of the sector tooth disc, the reciprocating tooth rod generates a linear reciprocating motion. The movement of the gear rod drives the third U-shaped tube 67 or the fourth tube section 64 of the siphon tube 6 to rise and fall, thereby realizing the automatic transfer of the liquid. The rotation of the drive motor 51 is converted into the swing of the gear arm through the turntable 52, and then the swing of the gear arm drives the gear disc to rotate, and the gear disc engages with the gear rod, thereby converting the rotational motion into linear motion. This series of mechanical transmissions ensures the precise movement of the siphon tube 6, ensuring that the liquid can be smoothly sucked in and transferred to the reaction chamber 2. The design of the turntable 52, gear arm, gear disc and gear rod ensures the motion accuracy and repeatability of the entire system, so that each operation can be performed according to the predetermined path, avoiding errors and inconsistencies in traditional manual operations.

[0048] The first reciprocating toothed rod 57 is connected to the third U-shaped tube 67 or the fourth tube section 64 of the siphon tube 6. The reciprocating motion of the toothed rod drives the siphon tube 6 to rise and fall. During the continuous rise and fall of the siphon tube 6, the liquid in the solution bottle 4 can reach the third U-shaped tube 67, and then use gravity to pass over the third U-shaped tube 67 and flow out from the fourth tube section 64. After that, the siphon tube 6 can continuously transport the liquid in the solution bottle 4 to the reaction chamber 2. Of course, it should be noted that the siphon tube 6 used in this embodiment is a self-starting siphon tube 6, that is, the siphon tube 6 can realize automatic siphoning without repeatedly raising and lowering the siphon tube 6. However, its automatic siphoning requires that the other U-shaped tubes and tube sections except the third U-shaped tube 67 and the fourth tube section 64 are all located below the liquid surface of the solution, and there can be no error. Therefore, for the sake of safety, the toothed rod is used here to drive the siphon tube 6 to make a linear reciprocating motion to ensure that the siphon tube 6 can definitely siphon the solution into the reaction chamber 2.

[0049] For further information, see Figure 4 The driving mechanism 5 also includes a second driving tooth arm 58, a second fixed plate 59 and a second reciprocating gear rod 591. A second active column 522 is provided on the edge of the disk surface of the rotating disk 52 away from the driving motor 51. The second driving tooth arm 58 includes a second driving rod 581 and a second fan-shaped toothed disk 582. The second driving rod 581 is provided with a second waist-shaped groove 5811. The second active column 522 is sleeved in the second waist-shaped groove 5811. One end of the second driving rod 581 is connected to the second fan-shaped toothed disk 582. The second fixed plate 59 is fixed on the mounting frame 1. The second reciprocating gear rod 591 is movably sleeved on the second fixed plate 59. The axial surface of the second reciprocating gear rod 591 is meshed with the teeth of the second fan-shaped toothed disk 582 on one side away from the second driving rod 581.

[0050] In detail, the second driving tooth arm 58 is similar in structure to the first driving tooth arm 53, and is composed of a second driving rod 581 and a second sector-shaped tooth disc 582. The arrangement of the driving tooth arm enables the device to control two siphon tubes 6 at the same time. The second driving rod 581 of the second driving tooth arm 58 is also designed with a second waist-shaped groove 5811, and the second active column 522 is sleeved in the second waist-shaped groove 5811. One end of the second driving rod 581 is connected to the second sector-shaped tooth disc 582 to form a complete driving chain. When the rotating disk 52 rotates, the second tooth arm is driven to swing through the second active column 522, and then the linear motion of the second reciprocating tooth rod 591 is controlled through the second sector-shaped tooth disc 582. The rotating disk 52 is also provided with a first active column 521 and a second active column 522, which work in conjunction with the first driving tooth arm 53 and the second driving tooth arm 58, respectively. Driven by the driving motor 51, the two tooth arms respectively control two independent siphon tubes 6 to achieve synchronous or coordinated liquid transfer operations. The motion trajectory and time control of the two tooth arms can achieve highly synchronized or delayed precise control, thereby adapting to the needs of different liquid transfers. For example, when two solutions need to be mixed in a certain proportion, the asynchronous operation of the tooth arms can ensure accurate liquid ratios. The second fixed plate 59 is used to fix the second reciprocating tooth rod 591 so that the tooth rod can perform precise reciprocating motion on a fixed track. The second reciprocating tooth rod 591 is connected to the second siphon tube, and the transfer of liquid from the second solution bottle to the reaction chamber 2 is achieved by driving the tooth arm.

[0051] Furthermore, the first active column 521 and the second active column 522 are centrally symmetrical, so that the first reciprocating gear rod 57 and the second reciprocating gear rod 591 can move synchronously, and the lifting and lowering of the first reciprocating gear rod 57 and the lifting and lowering of the second reciprocating gear rod 591 are staggered, that is, when the first reciprocating gear rod 57 rises, the second reciprocating gear rod 591 falls, and when the first reciprocating gear rod 57 falls, the second reciprocating gear rod 591 rises.

[0052] In some embodiments, there are multiple solution bottles 4, and the multiple solution bottles 4 are fixed on the mounting frame 1 and arranged around the reaction chamber 2. The number of the siphon tubes 6 is equal to the number of the solution bottles 4, and the liquid inlet end of each of the siphon tubes 6 is arranged in alignment with one of the solution bottles 4, and the liquid outlet end of each of the siphon tubes 6 is arranged in alignment with the reaction chamber 2, and the number of the driving mechanisms 5 is half of the number of the siphon tubes 6.

[0053] In detail, by setting a plurality of solution bottles 4, fixing them on the mounting frame 1, and arranging them around the reaction chamber 2, it is ensured that the distance between each solution bottle 4 and the reaction chamber 2 is minimized, thereby reducing the possible flow loss or delay during the liquid transfer process. The bottom position of each solution bottle 4 is higher than the top of the reaction chamber 2, and the height difference is used to assist the liquid transfer of the siphon 6. This arrangement not only improves the efficiency of liquid flow, but also reduces the burden on the driving mechanism 5. Each solution bottle 4 corresponds to an independent siphon 6, which is lifted and lowered by the driving mechanism 5 to control the liquid to flow from the solution bottle 4 into the reaction chamber 2. In order to reduce the complexity of the device, the driving of multiple siphons 6 can be controlled by relatively few driving mechanisms 5 (such as one driving mechanism 5 for every two siphons 6). This design allows the liquids in multiple solution bottles 4 to enter the reaction chamber 2 simultaneously or sequentially, so that different reaction steps can be completed more efficiently. This is particularly important for nanoparticle preparation processes involving multiple reaction solutions. The number of driving mechanisms 5 is half the number of siphons 6, which means that each driving mechanism 5 can control two siphons 6 at the same time. This shared drive design optimizes the structure of the device, reduces the number of required drive motors 51 and the control complexity. The drive mechanism 5 converts rotation into linear motion through mechanical transmission, and controls the siphon 6 to move up and down on the liquid surface. Through precise mechanical design, the accuracy and consistency of each liquid transfer are ensured.

[0054] In some embodiments, there are two solution bottles 4, including a first solution bottle and a second solution bottle, and there are two siphon tubes 6, including a first siphon tube and a second siphon tube. The first reciprocating gear rod 57 is connected to the first siphon tube, and the liquid inlet of the first siphon tube is arranged in alignment with the first solution bottle. The second reciprocating gear rod 591 is connected to the second siphon tube, and the liquid inlet of the second siphon tube is arranged in alignment with the second solution bottle.

[0055] In detail, two solution bottles 4 are provided, namely, a first solution bottle and a second solution bottle. Each solution bottle 4 is independently mounted on the mounting frame 1 and is higher than the top of the reaction chamber 2. The first solution bottle 4 may be loaded with a precursor solution of a precious metal, while the second solution bottle 4 is loaded with a reducing agent or other auxiliary reaction solution. In the process of preparing precious metal nanoparticles, precise reaction condition control is achieved by independently controlling the inflow of the two solutions. By independently setting the two solution bottles 4, unnecessary mixing of the two solutions before entering the reaction chamber 2 can be avoided, ensuring the controllability and accuracy of the reaction. The two solution bottles 4 are respectively equipped with their own siphons 6, respectively referred to as the first siphon and the second siphon. These siphons 6 are responsible for drawing liquid from the solution bottle 4 and introducing it into the reaction chamber 2. The design of the siphon 6 takes into account the self-starting siphon principle, driving the liquid flow through the height difference in the pipeline without the need for an additional pump or power source. The first reciprocating gear rod 57 is connected to the first siphon to control the liquid transfer in the first solution bottle; the second reciprocating gear rod 591 is connected to the second siphon to control the liquid transfer in the second solution bottle. This design ensures that the liquids in the two solution bottles 4 can be independently and accurately transferred to the reaction chamber 2, which is convenient for the subsequent chemical reaction. The driving mechanism 5 controls the operation of the two siphon tubes 6 through two independent gear rods. These gear rods move the siphon tubes 6 at a precise time point by driving the swing of the gear arms, so that the liquid is sucked in and transferred to the reaction chamber 2. By controlling the synchronous or asynchronous movement of the gear rods, the ratio control and phased addition of the two solutions can be achieved. The precise design of the driving mechanism 5 enables the siphon tube 6 to move smoothly into the solution bottle 4 at startup, and through precise height control, ensures that the siphon action is carried out smoothly and prevents air from entering and destroying the siphon phenomenon.

[0056] In some embodiments, the driving mechanism 5 also includes a reducer (not shown in the figure), which is connected between the driving motor 51 and the turntable 52, and is used to slow down the rotation speed of the driving motor 51 output to the turntable 52, so as to prevent the reciprocating gear rod from being damaged due to excessive reciprocating motion, and is also more conducive to accurately stopping the siphon tube 6 at the bottom of the solution bottle 4, or other preset positions. Specifically, the relationship between the reciprocating gear rod, the reducer and the rotation speed can be calculated to obtain the number of revolutions that the driving motor 51 needs to rotate, so that the siphon tube 6 can stop at the preset position.

[0057] In some embodiments, see Figure 2 and Figure 5, the siphon tube 6 includes a plurality of sub-tubes, the first tube section 61, the second tube section 62, the third tube section 63 and the fourth tube section 64 are all formed by sealingly connecting a plurality of the sub-tubes, and the adjacent sub-tubes are detachably connected; the solution bottle 4 includes a plurality of annular bottle bodies 41, and the plurality of annular bottle bodies 41 are sequentially detachably and sealedly connected along the height direction. By setting the siphon tube 6 to be composed of a plurality of sub-tubes, the length of the siphon tube 6 can be adjusted according to actual conditions, ensuring that the other tube sections of the siphon tube 6 except the third U-shaped tube 67 and the fourth tube section 64 are all located below the liquid level of the liquid in the solution bottle 4, so as to adapt to solutions of different capacities. Correspondingly, the solution bottle 4 is composed of a plurality of annular bottle bodies 41, which is also mainly used to carry solutions of different capacities. It should be noted that the connection between the plurality of sub-tubes must be sealed, and the connection between the plurality of annular bottle bodies 41 must also be sealed, such as providing a sealing rubber ring at the connection of adjacent sub-tubes, and providing a sealing rubber ring at the connection of adjacent annular bottle bodies 41.

[0058] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0059] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0060] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more application embodiments, in the above description of the embodiments of this application, multiple features are sometimes merged into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0061] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this application is hereby incorporated by reference in its entirety, except for application history documents that are inconsistent with or conflicting with the content of this application, and documents that limit the broadest scope of the claims of this application (currently or later attached to this application). It should be noted that if the descriptions, definitions, and / or use of terms in the attached materials of this application are inconsistent or conflicting with the content of this application, the descriptions, definitions, and / or use of terms in this application shall prevail.

[0062] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An integrated preparation device for precious metal nanoparticles, characterized in that: include: Mounting frame; A reaction chamber is fixed on the mounting frame, and a stirring through hole is provided on the top of the reaction chamber; A stirring mechanism, fixed on the mounting frame and extending into the reaction chamber through the stirring through hole; At least one solution bottle, which is arranged on the mounting frame and is used to load the liquid to be reacted, and the bottom of the solution bottle is at a height greater than the top of the reaction chamber; A driving mechanism, arranged on the mounting frame; A siphon tube is fixed to the driving end of the driving mechanism, and the driving mechanism can drive the siphon tube to move in the height direction; A drying mechanism is arranged on one side of the mounting frame, and a drying output end of the drying mechanism is connected to the reaction chamber; Wherein, the siphon comprises a first pipe segment, a second pipe segment, a third pipe segment and a fourth pipe segment, one end of the first pipe segment is connected to one end of the second pipe segment through a first U-shaped pipe, the other end of the second pipe segment is connected to one end of the third pipe segment through a second U-shaped pipe, and the other end of the third pipe segment is connected to the fourth pipe segment through a third U-shaped pipe; The driving mechanism includes a driving siphon mode. When the driving mechanism is in the driving siphon mode, the driving mechanism can drive the siphon tube to move toward the bottom of the solution bottle, so that the end of the first tube segment facing away from the second tube segment is located in the solution bottle, the fourth tube segment is located outside the solution bottle, and the end of the fourth tube segment facing away from the third tube segment is located in the reaction chamber, the first tube segment, the first U-shaped tube, the second tube segment, the second U-shaped tube, the third tube segment and a part of the third U-shaped tube close to the third tube segment are all located below the liquid surface of the liquid to be reacted, and the height of the second U-shaped tube is greater than the height of the end of the first tube segment facing away from the first U-shaped tube.

2. The integrated preparation device for noble metal nanoparticles according to claim 1, characterized in that: The driving mechanism includes a driving motor, a rotating disk, a first driving tooth arm, a first fixed plate and a first reciprocating gear rod, the driving motor is fixed on the mounting frame, the center of the rotating disk is connected to the output end of the driving motor, and a first active column is provided on the edge of the disk surface of the rotating disk away from the driving motor, the first driving tooth arm includes a first driving rod and a first fan-shaped toothed disk, the first driving rod is provided with a first waist-shaped groove, the first active column is sleeved in the first waist-shaped groove, one end of the first driving rod is connected to the first fan-shaped toothed disk, the first fixed plate is fixed to the mounting frame, the first reciprocating gear rod is movably sleeved on the first fixed plate, the axial surface of the first reciprocating gear rod is meshed with the teeth on one side of the first fan-shaped toothed disk away from the first driving rod, and the axial surface of the first reciprocating gear rod is connected to the third U-shaped tube or the fourth tube section of the siphon tube.

3. The integrated preparation device for noble metal nanoparticles according to claim 2, characterized in that: The driving mechanism also includes a second driving tooth arm, a second fixed plate and a second reciprocating gear rod. A second active column is provided on the edge of the disk surface on the side of the rotating disk away from the driving motor. The second driving tooth arm includes a second driving rod and a second fan-shaped gear disk. The second driving rod is provided with a second waist-shaped groove. The second active column is sleeved in the second waist-shaped groove. One end of the second driving rod is connected to the second fan-shaped gear disk. The second fixed plate is fixed to the mounting frame. The second reciprocating gear rod is movably sleeved on the second fixed plate. The axial surface of the second reciprocating gear rod is meshed with the teeth on the side of the second fan-shaped gear disk away from the second driving rod.

4. The integrated preparation device for noble metal nanoparticles according to claim 3, characterized in that: The first active column and the second active column are centrally symmetrical.

5. The integrated preparation device for noble metal nanoparticles according to claim 3, characterized in that: There are multiple solution bottles, all of which are fixed on the mounting frame and arranged around the reaction chamber. The number of siphon tubes is equal to the number of solution bottles, and the liquid inlet end of each siphon tube is aligned with a solution bottle, and the liquid outlet end of each siphon tube is aligned with the reaction chamber, and the number of driving mechanisms is half of the number of siphon tubes.

6. The integrated preparation device for noble metal nanoparticles according to claim 3, characterized in that: There are two solution bottles, including a first solution bottle and a second solution bottle. There are two siphon tubes, including a first siphon tube and a second siphon tube. The first reciprocating gear rod is connected to the first siphon tube, and the liquid inlet of the first siphon tube is arranged in correspondence with the first solution bottle. The second reciprocating gear rod is connected to the second siphon tube, and the liquid inlet of the second siphon tube is arranged in correspondence with the second solution bottle.

7. The integrated preparation device for noble metal nanoparticles according to any one of claims 2 to 6, characterized in that: The driving mechanism further includes a reducer connected between the driving motor and the rotating disk.

8. The integrated preparation device for noble metal nanoparticles according to any one of claims 1 to 6, characterized in that: The siphon tube includes a plurality of sub-tubes, and the first tube segment, the second tube segment, the third tube segment and the fourth tube segment are all composed of a plurality of sub-tubes sealed together, and adjacent sub-tubes are detachably connected; the solution bottle includes a plurality of annular bottle bodies, and the plurality of annular bottle bodies are detachably and sealably connected in sequence along the height direction.

9. The integrated preparation device for noble metal nanoparticles according to any one of claims 1 to 6, characterized in that: The stirring mechanism includes a stirring motor and a stirring rod. The stirring motor is arranged on the mounting frame and located at the top of the reaction chamber. One end of the stirring rod is connected to the output end of the stirring motor, and the other end is located in the reaction chamber. The stirring rod is arranged at an angle.

10. The integrated preparation device for noble metal nanoparticles according to any one of claims 1 to 6, characterized in that: A discharge port is provided at the bottom of the reaction bin and an electric valve is arranged at the discharge port. The preparation device also includes a material receiving storage bin, and the bin opening of the material receiving storage bin is arranged to be aligned with the discharge port.

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