Nano silver powder preparation reaction device

Abstract

The invention relates to the technical field of nano silver powder production, in particular to a nano silver powder preparation reaction device which comprises a reaction tank, multiple sets of diaphragm pieces are arranged on the surface of the reaction tank, multiple sets of stirring rollers are arranged outside the reaction tank, the stirring rollers and the diaphragm pieces are in one-to-one correspondence, and the stirring rollers in the same column are jointly connected with a connecting frame. The connecting frame is connected with the reaction tank through a synchronous moving mechanism, the synchronous moving mechanism is arranged, the stirring roller can be driven to move, the stirring roller can push a diaphragm piece to deform and move into the reaction tank, the stirring roller is driven to rotate through a rotating mechanism, and reaction liquid in the reaction tank is stirred; in the stirring process, the stirring roller does not make direct contact with the reaction liquid, the stirring roller does not need to be cleaned, in addition, after the stirring roller is moved out of the reaction tank, the diaphragm piece can restore to make the inner surface of the reaction tank smooth, and the inner surface of the reaction tank can be cleaned conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of nano silver powder production, in particular to a nano silver powder preparation reaction device. Background Art

[0002] The preparation methods of ultrafine silver powder mainly include gas phase method, liquid phase method and solid phase method. The gas phase method has large investment, high energy consumption and low yield; the ultrafine silver powder prepared by the solid phase method has a large particle size and a wide particle size distribution range; the liquid phase chemical reduction method is currently a common method for preparing ultrafine silver powder in small batches at low cost. The principle of preparing ultrafine silver powder by liquid phase chemical reduction method is to use a reducing agent to deposit silver from its salt or complex aqueous solution or organic system in the form of powder. Commonly used reducing agents include formaldehyde, ascorbic acid, glycerol, organic amines, unsaturated alcohols, sodium citrate, hydrazine and hydrazine compounds, etc., and hydrazine hydrate is generally used. In the silver ammonia aqueous solution, a certain amount of additive nitrate is added, and under the action of the reducing agent hydrazine hydrate, the amount of the additive is adjusted to obtain silver powder of different particle sizes. At present, in the production process of nano silver powder, it is necessary to use a stirring device to stir the reaction liquid. The existing stirring device is located inside the reaction tank, and the stirring device is directly in contact with the reaction liquid, which is not convenient for cleaning. For this reason, a nano silver powder preparation reaction device is proposed. Summary of the invention

[0003] The purpose of the present invention is to provide a nano silver powder preparation reaction device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a nano silver powder preparation reaction device, comprising a reaction tank, a plurality of groups of diaphragm parts are arranged on the surface of the reaction tank, a plurality of groups of stirring rollers are arranged outside the reaction tank, the stirring rollers correspond to the diaphragm parts one by one, the stirring rollers in the same row are connected to a connecting frame, the connecting frame is connected to the reaction tank through a synchronous moving mechanism, and the synchronous moving mechanism can move the stirring rollers into the reaction tank through the diaphragm parts; The outer surfaces of the connecting frames are all provided with rotating mechanisms, and the rotating mechanisms enable the stirring rollers on the same connecting frame to rotate simultaneously.

[0005] Preferably, the diaphragm member includes a frame plate, a rubber layer and a mounting groove, wherein the mounting groove is provided on the surface of the reaction tank, the mounting groove is matched with the frame plate, the frame plate is fixedly mounted inside the mounting groove, and the rubber layer is fixedly mounted inside the frame plate.

[0006] Preferably, support columns are fixedly connected at four corners of the lower surface of the reaction tank, and a base is fixedly connected to the support columns, and the base is located below the reaction tank.

[0007] Preferably, the synchronous movement mechanism includes a main gear rotatably mounted on the upper surface of the base, the connecting frames are all arranged in an L-shape, a slide groove connected to the horizontal part of the connecting frame is opened at the bottom of the reaction tank, the horizontal part of the connecting frame is cooperated and mounted inside the slide groove, the horizontal part of the connecting frame is fixedly connected with a toothed plate, a plurality of groups of upper gears are rotatably connected to the lower surface of the reaction tank, the upper gears correspond to the toothed plates one by one and mesh with each other, a plurality of groups of lower gears are rotatably connected to the upper surface of the base, the lower gears are all meshed with the main gear, a rotating shaft is fixedly connected between the upper gears and the lower gears in the same row, a first motor is fixedly mounted on the lower surface of the base, and the output shaft of the first motor is fixedly connected to the main gear.

[0008] Preferably, the horizontal parts of the connecting frame are all arranged along the radial direction of the reaction tank, and the main gear is arranged coaxially with the reaction tank.

[0009] Preferably, an adjustment mechanism is provided between the rotating end of the rotating mechanism and one end of the stirring roller, and the adjustment mechanism can cause the stirring roller to be eccentrically arranged with respect to the rotating end of the rotating mechanism.

[0010] Preferably, the adjustment mechanism rotatably mounts a turntable on the connecting frame, a groove is provided on the surface of the turntable along the diameter direction, a slider is mounted inside the groove, an electric push rod is fixedly connected to one side of the inner surface of the groove, and the output end of the electric push rod is fixedly connected to the slider.

[0011] Preferably, the rotating mechanism includes a transmission wheel fixedly mounted on the outer surface of the turntable, the outer surfaces of the transmission wheels in the same row are commonly sleeved with a conveyor belt, a second motor is fixedly connected to the connecting frame, and the output shaft of the second motor is fixedly connected to one group of transmission wheels.

[0012] Preferably, the distance between the two groups of rotating mechanisms in the same row is greater than the rotating diameter of the stirring roller.

[0013] Preferably, a discharge pipe is fixedly connected to the bottom of the reaction tank, and a valve body is arranged inside the discharge pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention can drive the stirring roller to move by setting a synchronous moving mechanism, and the stirring roller can push the diaphragm to deform and move into the reaction tank, and the rotating mechanism drives the stirring roller to rotate to stir the reaction liquid in the reaction tank; In the present invention, during the stirring process, the stirring roller does not directly contact the reaction liquid and does not need to be cleaned. In addition, after the stirring roller is removed from the reaction tank, the diaphragm will be restored to make the inner surface of the reaction tank flat, so as to facilitate cleaning of the inner surface of the reaction tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional view of the outer cylinder of the present invention; Figure 3 It is a structural schematic diagram of the synchronous moving mechanism of the present invention; Figure 4 It is a structural schematic diagram of the sedimentation rotation mechanism of the present invention; Figure 5 It is a structural schematic diagram of the regulating mechanism of the present invention; Figure 6 For the present invention Figure 2 Enlarged view of point A in the middle.

[0016] In the accompanying drawings, the list of parts represented by each reference numeral is as follows: 1. reaction tank; 2. diaphragm; 21. frame plate; 22. rubber layer; 23. mounting groove; 3. stirring roller; 4. connecting frame; 5. synchronous moving mechanism; 51. tooth plate; 52. slide groove; 53. upper gear; 54. rotating shaft; 55. lower gear; 56. main gear; 57. first motor; 6. rotating mechanism; 61. second motor; 62. transmission wheel; 63. conveyor belt; 7. adjusting mechanism; 71. turntable; 72. tank body; 73. electric push rod; 74. slider; 8. support column; 9. base; 10. discharge pipe. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 2 , a nano silver powder preparation reaction device is shown in the figure, comprising a reaction tank 1, a plurality of groups of diaphragm members 2 are arranged on the surface of the reaction tank 1, a plurality of groups of stirring rollers 3 are arranged outside the reaction tank 1, the stirring rollers 3 correspond to the diaphragm members 2 one by one, the stirring rollers 3 in the same row are connected to a connecting frame 4, the connecting frame 4 is connected to the reaction tank 1 through a synchronous moving mechanism 5, and the synchronous moving mechanism 5 can make the stirring rollers 3 pass through the diaphragm member 2 and move into the interior of the reaction tank 1; The outer surface of the connecting frame 4 is provided with a rotating mechanism 6, and the rotating mechanism 6 enables the stirring rollers 3 on the same connecting frame 4 to rotate simultaneously.

[0019] In this embodiment, by setting up a synchronous moving mechanism 5, the stirring roller 3 can be driven to move. The stirring roller 3 can push the diaphragm 2 to deform and move into the reaction tank 1, and the rotating mechanism 6 is used to drive the stirring roller 3 to rotate to stir the reaction liquid inside the reaction tank 1. After the stirring is completed, the synchronous moving mechanism 5 is used to drive the stirring roller 3 to reset and move it out of the reaction tank 1. During the stirring process, the stirring roller 3 does not directly contact the reaction liquid, and there is no need to clean the stirring roller 3. In addition, after the stirring roller 3 is moved out of the reaction tank 1, the diaphragm 2 will be restored to make the inner surface of the reaction tank 1 smooth, so as to facilitate the cleaning of the inner surface of the reaction tank 1.

[0020] Furthermore, the diaphragm member 2 includes a frame plate 21 , a rubber layer 22 and a mounting groove 23 . The mounting groove 23 is provided on the surface of the reaction tank 1 . The mounting groove 23 is adapted to the frame plate 21 . The frame plate 21 is fixedly mounted inside the mounting groove 23 . The rubber layer 22 is fixedly mounted inside the frame plate 21 .

[0021] In actual application, when the frame plate 21 is installed in the installation groove 23 , a sealing gasket needs to be provided in the gap between the frame plate 21 and the installation groove 23 to ensure the sealing performance in the reaction tank 1 .

[0022] See also Figure 2 , Figure 3 as well as Figure 6 , the four corners of the lower surface of the reaction tank 1 are fixedly connected with support columns 8, and the support columns 8 are fixedly connected with a base 9, which is located below the reaction tank 1. The synchronous moving mechanism 5 includes a main gear 56 rotatably mounted on the upper surface of the base 9, the connecting frame 4 is set in an L-shape, the bottom of the reaction tank 1 is provided with a slide 52 connected to the horizontal part of the connecting frame 4, the horizontal part of the connecting frame 4 is matched and installed inside the slide 52, and the horizontal part of the connecting frame 4 is fixedly connected with a tooth plate 51, the lower surface of the reaction tank 1 is rotatably connected with multiple groups of upper gears 53, the upper gears 53 correspond to the tooth plates 51 one by one and mesh with each other, the upper surface of the base 9 is rotatably connected with multiple groups of lower gears 55, and the lower gears 55 are meshed with the main gear 56, and a rotating shaft 54 ​​is fixedly connected between the upper gears 53 and the lower gears 55 in the same row, and a first motor 57 is fixedly installed on the lower surface of the base 9, and the output shaft of the first motor 57 is fixedly connected with the main gear 56.

[0023] Furthermore, the horizontal parts of the connecting frame 4 are all arranged along the radial direction of the reaction tank 1 , and the main gear 56 is coaxially arranged with the reaction tank 1 .

[0024] In this embodiment, when the first motor 57 is used to drive the main gear 56 to rotate forward, the lower gear 55, the rotating shaft 54 ​​and the upper gear 53 can be driven to rotate, thereby driving the tooth plate 51 and the horizontal part of the connecting frame 4 to move along the slide groove 52 toward the bottom center of the reaction tank 1, and the connecting frame 4 thereby drives the stirring roller 3 to move, and the stirring roller 3 can thereby push the rubber layer 22, so that the rubber layer 22 is deformed and moves into the interior of the reaction tank 1; when the first motor 57 is used to drive the main gear 56 to rotate reversely, the lower gear 55, the rotating shaft 54 ​​and the upper gear 53 can be driven to rotate reversely, thereby driving the tooth plate 51 and the horizontal part of the connecting frame 4 to move along the slide groove 52 toward the outside of the reaction tank 1, and the connecting frame 4 can thereby drive the stirring roller 3 to move out of the reaction tank 1.

[0025] See also Figure 4-Figure 5 An adjusting mechanism 7 is provided between the rotating end of the rotating mechanism 6 and one end of the stirring roller 3. The adjusting mechanism 7 can make the stirring roller 3 and the rotating end of the rotating mechanism 6 eccentrically arranged. The adjusting mechanism 7 rotates a turntable 71 installed on the connecting frame 4. A groove body 72 is provided on the surface of the turntable 71 along the diameter direction. A slider 74 is installed inside the groove body 72. An electric push rod 73 is fixedly connected to one side of the inner surface of the groove body 72. The output end of the electric push rod 73 is fixedly connected to the slider 74.

[0026] In this embodiment, by driving the electric push rod 73 to extend, the slider 74 can be driven to move inside the tank 72 to adjust the vertical distance between the axis of the stirring roller 3 and the axis of the rotating end of the rotating mechanism 6, thereby adjusting the stirring range of the stirring roller 3.

[0027] See also Figure 2 and Figure 4 The rotating mechanism 6 includes a transmission wheel 62 fixedly mounted on the outer surface of the turntable 71, and a conveyor belt 63 is commonly sleeved on the outer surfaces of the transmission wheels 62 in the same row. A second motor 61 is fixedly connected to the connecting frame 4, and the output shaft of the second motor 61 is fixedly connected to one group of the transmission wheels 62.

[0028] In this embodiment, the second motor 61 is used to drive the transmission wheel 62 and the conveyor belt 63 to rotate, thereby driving the turntable 71, the slider 74 and the stirring roller 3 to rotate.

[0029] See also Figure 2 The distance between the two groups of rotating mechanisms 6 in the same row is greater than the rotation diameter of the stirring roller 3, which can prevent the stirring rollers 3 from interfering with each other during stirring.

[0030] See also Figure 1 A discharge pipe 10 is fixedly connected to the bottom of the reaction tank 1 and a valve body is arranged inside the discharge pipe 10 .

[0031] In this embodiment, the valve body can be any type of existing solenoid valve, and a corresponding power supply component can be set on the outer surface of the reaction tank 1 to provide power to the solenoid valve. A corresponding button can also be set, and pressing the button can control the switch of the solenoid valve.

[0032] It should be noted that the switch interfaces of the first motor 57, the second motor 61 and the electric push rod 73 are all connected to the external power supply, and the circuits and related driver programs involved are all existing conventional technologies and will not be described in detail here.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nano silver powder preparation reaction device, comprising a reaction tank (1), characterized in that: The surface of the reaction tank (1) is provided with a plurality of groups of diaphragm members (2), and the outside of the reaction tank (1) is provided with a plurality of groups of stirring rollers (3), the stirring rollers (3) corresponding to the diaphragm members (2) one by one, and the stirring rollers (3) in the same row are connected to a connecting frame (4), and the connecting frame (4) is connected to the reaction tank (1) via a synchronous moving mechanism (5), and the synchronous moving mechanism (5) can enable the stirring rollers (3) to pass through the diaphragm members (2) and move into the interior of the reaction tank (1); The outer surface of the connecting frame (4) is provided with a rotating mechanism (6), and the rotating mechanism (6) causes the stirring rollers (3) on the same connecting frame (4) to rotate simultaneously.

2. The nano silver powder preparation reaction device according to claim 1, characterized in that: The diaphragm member (2) comprises a frame plate (21), a rubber layer (22) and a mounting groove (23); the mounting groove (23) is formed on the surface of the reaction tank (1); the mounting groove (23) is matched with the frame plate (21); the frame plate (21) is fixedly mounted inside the mounting groove (23); and the rubber layer (22) is fixedly mounted inside the frame plate (21).

3. The nano silver powder preparation reaction device according to claim 2, characterized in that: Support columns (8) are fixedly connected at the four corners of the lower surface of the reaction tank (1), and a base (9) is fixedly connected to the support columns (8), and the base (9) is located below the reaction tank (1).

4. The nano silver powder preparation reaction device according to claim 3, characterized in that: The synchronous moving mechanism (5) comprises a main gear (56) rotatably mounted on the upper surface of the base (9); the connecting frames (4) are all arranged in an L-shape; a slide groove (52) connected to the horizontal portion of the connecting frame (4) is provided at the bottom of the reaction tank (1); the horizontal portion of the connecting frame (4) is mounted in cooperation with the slide groove (52); the horizontal portion of the connecting frame (4) is fixedly connected to a toothed plate (51); a plurality of groups of upper gears (53) are rotatably connected to the lower surface of the reaction tank (1); the upper gears (53) correspond to the toothed plate (51) one by one and mesh with each other; a plurality of groups of lower gears (55) are rotatably connected to the upper surface of the base (9); the lower gears (55) are meshed with the main gear (56); a rotating shaft (54) is fixedly connected between the upper gears (53) and the lower gears (55) in the same row; a first motor (57) is fixedly mounted on the lower surface of the base (9); an output shaft of the first motor (57) is fixedly connected to the main gear (56).

5. The nano silver powder preparation reaction device according to claim 4, characterized in that: The horizontal parts of the connecting frame (4) are all arranged along the radial direction of the reaction tank (1), and the main gear (56) is arranged coaxially with the reaction tank (1).

6. The nano silver powder preparation reaction device according to claim 1, characterized in that: An adjustment mechanism (7) is provided between the rotating end of the rotating mechanism (6) and one end of the stirring roller (3), and the adjustment mechanism (7) can cause the stirring roller (3) and the rotating end of the rotating mechanism (6) to be eccentrically arranged.

7. The nano silver powder preparation reaction device according to claim 6, characterized in that: The adjusting mechanism (7) rotatably mounts a turntable (71) on the connecting frame (4); a groove (72) is provided on the surface of the turntable (71) along the diameter direction; a slider (74) is mounted in the groove (72); an electric push rod (73) is fixedly connected to one side of the inner surface of the groove (72); and an output end of the electric push rod (73) is fixedly connected to the slider (74).

8. The nano silver powder preparation reaction device according to claim 7, characterized in that: The rotating mechanism (6) comprises a transmission wheel (62) fixedly mounted on the outer surface of a rotating disk (71); a conveyor belt (63) is sleeved on the outer surfaces of the transmission wheels (62) located in the same row; a second motor (61) is fixedly connected to the connecting frame (4); and an output shaft of the second motor (61) is fixedly connected to one group of the transmission wheels (62).

9. A nano silver powder preparation reaction device according to claim 8, characterized in that: The distance between the two groups of rotating mechanisms (6) in the same row is greater than the rotating diameter of the stirring roller (3).

10. The nano silver powder preparation reaction device according to claim 1, characterized in that: A discharge pipe (10) is fixedly connected through the bottom of the reaction tank (1), and a valve body is arranged inside the discharge pipe (10).

Images