Reaction device for preparing nano silver powder through solid-liquid mixing method

Abstract

The utility model relates to a reaction device for preparing nano silver powder by a solid-liquid mixing method, which belongs to the technical field of nano silver powder preparation and comprises a freezing tank and a reaction tank for preparing the nano silver powder and a portal frame arranged above the freezing tank and the reaction tank, and a stirring device is arranged between the portal frame and the freezing tank. An adjusting mechanism for moving the stirring equipment is arranged on the portal frame; the stirring equipment comprises a stirring motor, a stirring shaft fixedly mounted on an output shaft of the stirring motor and a plurality of fixed circular rings which are arranged outside the stirring shaft at equal intervals. According to the reaction device for preparing the nano silver powder through the solid-liquid mixing method, reaction materials are frozen into a solid state in the freezing tank, solid-liquid reaction is carried out in the reaction tank, the reaction for preparing the nano silver powder through the solid-liquid mixing method is completed, and compared with a common liquid-liquid reaction device, the reaction efficiency is greatly improved. The device has the effects of freezing and solidifying the materials, enhancing the fixing effect of the solidified materials, slowly releasing the solidified materials and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to nanometer silver powder preparation technical field, concretely is a kind of solid-liquid mixing method preparation nanometer silver powder's reaction device. BACKGROUND

[0002] Nanometer silver powder is prepared by physical method, and nanometer silver powder product has high purity.Nanometer silver powder's conductive layer surface is smooth, and it has good conductivity;It is high-performance conductive filling material, and has good oxidation resistance.Nanometer silver powder application direction:1, antibacterial material: utilize nanometer silver powder with high specific surface area and high-efficiency autocatalytic function, adsorb on bacterial cell surface, hinder the normal metabolism and reproduction of bacteria, can be widely applied in medical, daily fabric and health care products etc.2, conductive paste: nanometer silver powder is used to replace noble metal powder to prepare superior electronic paste.This technology can promote the further optimization of microelectronic technology.3, catalyst: greatly improve chemical reaction speed and efficiency etc., for example, ethylene oxidation, alcohol oxidation to aldehyde etc.4, biological pharmacy: superfine nanometer silver powder is used for cell staining and gene diagnosis.

[0003] Reaction device is needed in nanometer silver powder preparation process and adds mixing function, and stirring mechanism is the key component for ensuring that solid-liquid raw materials are fully mixed.The design of existing reaction device is mainly based on completing reaction in liquid-liquid system, and the device basically has heating effect, and stirring shaft and stirring paddle are mostly designed to enhance mixing effect to meet the reaction mechanism of liquid-liquid system.

[0004] However, although the reaction device for completing reaction in liquid-liquid system has heating effect and stirring shaft and stirring paddle to enhance mixing effect, there is still insufficient mixing efficiency and uniformity, which cannot meet production requirements, so a reaction device for preparing nanometer silver powder by solid-liquid mixing method is proposed to solve the problems in the above. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of prior art, the utility model provides a reaction device for preparing nanometer silver powder by solid-liquid mixing method, which has the advantages of strong practicability, good reaction effect, etc., and solves the problem of insufficient mixing efficiency and uniformity in liquid-liquid system.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a reaction device for preparing nanometer silver powder by solid-liquid mixing method, which comprises a freezing tank and a reaction tank for nanometer silver powder preparation, and a gantry arranged above the freezing tank and the reaction tank, a stirring device is arranged between the gantry and the freezing tank, and an adjusting mechanism for moving the stirring device is arranged on the gantry.

[0007] The stirring device comprises a stirring motor, a stirring shaft fixedly installed on an output shaft of the stirring motor, and a plurality of equidistantly arranged fixed rings arranged outside the stirring shaft, a connecting frame is fixedly connected between the stirring shaft and the fixed rings, and a connecting line is fixedly connected between the plurality of equidistantly arranged fixed rings.

[0008] The adjusting mechanism comprises a shell slidingly arranged between the left and right inner walls of the gantry, a first driving motor fixedly installed on the upper surface of the gantry, a lifting lead screw rotatably installed in the gantry and fixed to the upper surface of the shell, a first worm fixedly installed on the output shaft of the first driving motor, and a first worm wheel fixedly installed on the outer surface of the lifting lead screw and meshing with the first worm.

[0009] The adjusting mechanism further comprises a second driving motor fixedly installed in the shell, a moving lead screw rotatably installed between the inner walls on the opposite side of the shell, a sliding seat slidingly installed in the shell and threadedly connected with the lead screw, a second worm fixedly installed on the output shaft of the second driving motor, and a second worm wheel fixedly installed on the end of the moving lead screw and meshing with the second worm, and the stirring motor is bolted to the lower surface of the sliding seat.

[0010] Further, the freezing tank is provided with a freezing groove, the reaction tank is provided with a reaction groove, the freezing groove is matched with a refrigeration device, and the reaction groove is provided with a refrigeration heating device.

[0011] Further, the plurality of fixed rings are vertically arranged from top to bottom, and the number of the connecting lines is several and equidistantly arranged.

[0012] Further, the inner diameters of the freezing groove and the reaction groove are greater than the fixed rings, the freezing tank and the reaction tank are horizontally arranged, and the heights of the freezing groove and the reaction groove are the same.

[0013] Further, the interior of the gantry is provided with a through hole, the lifting lead screw penetrates the interior of the gantry through the through hole, and the inner wall of the through hole is provided with a bearing connected with the outer surface of the lifting lead screw.

[0014] Further, the outer walls on the left and right sides of the shell are both fixedly installed with guide blocks, and the inner walls on the opposite sides of the gantry are both provided with guide grooves slidingly matched with the guide blocks.

[0015] Further, the interior of the shell is hollow, the sliding seat extends to the outside of the shell, and the inner walls on the opposite sides of the shell are both fixedly installed with guide rods penetrating the interior of the sliding seat.

[0016] Compared with the prior art, the reaction device for preparing nano silver powder by a solid-liquid mixing method has the following beneficial effects:

[0017] 1. The solid-liquid mixed method for preparing nano-silver powder reaction device, through the reaction material in the freezing tank frozen into solid, and in the reaction tank solid-liquid reaction, so that solid, liquid mixed method for preparing nano-silver powder reaction is completed, compared with ordinary liquid, liquid reaction device, the device provides material freezing solidification, strengthen the fixed effect of solidified material, slow release of solidified material and other effects.

[0018] 2. The solid-liquid mixed method for preparing nano-silver powder reaction device, mainly combining to realize the process requirement, design out liquid material can freeze solidification, slow melting and in the process of material reaction, the design strengthens the fixed function of solidified material, purposefully weakens the effect of material rapid mixing, so that the process meets the process requirement of slow release of solid material in solid-liquid reaction system. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is the structure perspective drawing of the utility model;

[0020] Fig. 2 It is the structure perspective drawing of the stirring equipment of the utility model;

[0021] Fig. 3 It is the structure sectional view of the shell of the utility model.

[0022] In the drawing: 1, freezing tank; 2, reaction tank; 3, gantry; 4, stirring equipment; 401, stirring motor; 402, stirring shaft; 403, connecting frame; 404, fixed ring; 405, connecting line; 5, shell; 6, first drive motor; 7, lifting screw; 8, first worm; 9, first worm wheel; 10, second drive motor; 11, moving screw; 12, second worm; 13, second worm wheel; 14, sliding seat; 15, guide block; 16, guide groove. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Please refer to Figs. 1 to 3The utility model provides a kind of reaction device for preparing nanometer silver powder by solid-liquid mixing method, including freezing tank 1 and reaction tank 2 for preparing nanometer silver powder and portal frame 3 being arranged above freezing tank 1 and reaction tank 2, freezing groove is arranged in freezing tank 1, reaction groove is arranged in reaction tank 2, freezing groove is matched with refrigeration device, freezing groove is as batching and freezing material.Reaction groove is provided with refrigeration heating device.Freezing tank 1 and reaction tank 2 are horizontally arranged, the height of freezing groove and reaction groove is same.Reaction groove is as system material reaction groove, its inner diameter is 1.5 times of freezing groove.

[0025] In the embodiment, stirring equipment 4 is arranged between portal frame 3 and freezing tank 1, stirring equipment 4 includes stirring motor 401, stirring shaft 402 fixedly installed on the output shaft of stirring motor 401 and a plurality of equidistantly arranged fixed rings 404 arranged outside stirring shaft 402, connecting frame 403 is fixedly connected between stirring shaft 402 and fixed ring 404, and connecting wire 405 is fixedly connected between a plurality of equidistantly arranged fixed rings 404.

[0026] It should be noted that the inner diameter of freezing groove is slightly larger than the outer diameter of stirring equipment 4, and the height is 30 cm higher than stirring shaft 402.

[0027] In the embodiment, adjusting mechanism for moving stirring equipment 4 is arranged on portal frame 3; adjusting mechanism includes shell 5 slidingly arranged between the left and right inner walls of portal frame 3, first drive motor 6 fixedly installed on the upper surface of portal frame 3, lifting lead screw 7 rotatably installed inside portal frame 3 and fixedly connected with the upper surface of shell 5, first worm 8 fixedly installed on the output shaft of first drive motor 6 and first worm wheel 9 fixedly installed on the outer surface of lifting lead screw 7 and engaged with first worm 8; adjusting mechanism further includes second drive motor 10 fixedly installed inside shell 5, moving lead screw 11 rotatably installed between the inner walls on the opposite side of shell 5, sliding seat 14 slidingly installed inside shell 5 and threadedly connected with lead screw 11, second worm 12 fixedly installed on the output shaft of second drive motor 10 and second worm wheel 13 fixedly installed on the end of moving lead screw 11 and engaged with second worm 12, and stirring motor 401 is bolted to the lower surface of sliding seat 14.

[0028] Specifically, a plurality of fixed rings 404 are vertically arranged from top to bottom, the number of connecting wires 405 is several, and they are equidistantly arranged.The inner diameters of freezing groove and reaction groove are both larger than fixed ring 404, and a through hole is formed in the interior of portal frame 3, lifting lead screw 7 penetrates through the interior of portal frame 3 through the through hole, and a bearing connected with the outer surface of lifting lead screw 7 is installed on the inner wall of the through hole.The reaction material can be frozen and solidified by the refrigeration device in freezing tank 1, and the solidified material can be fixed on stirring shaft 402, then the solidified material is transported into reaction tank 2 by adjusting mechanism, so that the solidified material can slowly rotate and melt in the reaction groove after the reaction groove is converted.

[0029] In order to ensure stable driving of the stirring device 4, in the embodiment, guide blocks 15 are fixedly installed on the outer walls of the left and right sides of the shell 5, and guide grooves 16 that are in sliding cooperation with the guide blocks 15 are arranged between the inner walls of the opposite sides of the gantry 3. The shell 5 is hollow, and the sliding seat 14 extends to the outside of the shell 5. A guide rod that penetrates through the inside of the sliding seat 14 is fixedly installed between the inner walls of the opposite sides of the shell 5.

[0030] The working principle of the above embodiment is as follows:

[0031] In use, first, the reaction material is frozen and solidified by the refrigeration device in the freezing tank 1, and the solidified material is fixed on the stirring shaft 402. Then, the solidified material is transported into the reaction tank 2 by the adjusting mechanism, so that the stirring shaft 402 can slowly rotate and melt the solidified material in the reaction tank after the reaction tank is converted. In addition, the design of the stirring shaft 402 adopts a multi-plate type fixation and a small-angle paddle surface design on the horizontal surface, so that the stirring of the melted material is relatively slow, which meets the requirements of the reaction process.

[0032] The mounting mode, connection mode or setting mode disclosed in the embodiment are all common mechanical connection modes, as long as the beneficial effects can be achieved. In addition, the electrical components in the embodiment are electrically connected with the master controller and the power supply. The master controller can be a conventional known device such as a computer that plays a control role. A person skilled in the art can control the electrical components through simple programming. The existing disclosed power connection technology also belongs to the common knowledge in the art. Therefore, the specific structure and working principle of the embodiment will not be described in detail.

[0033] It should be noted that, in this document, the terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reaction device for preparing nano-silver powder by solid-liquid mixing method, comprising a freezing tank (1) and a reaction tank (2) for preparing nano-silver powder, and a gantry (3) arranged above the freezing tank (1) and the reaction tank (2), characterized in that: The stirring device (4) is arranged between the gantry (3) and the freezing tank (1), and the gantry (3) is provided with an adjusting mechanism for moving the stirring device (4). The stirring device (4) comprises a stirring motor (401), a stirring shaft (402) fixedly installed on the output shaft of the stirring motor (401), and a plurality of equidistantly arranged fixed rings (404) arranged outside the stirring shaft (402), a connecting frame (403) is fixedly connected between the stirring shaft (402) and the fixed ring (404), and a connecting line (405) is fixedly connected between the plurality of equidistantly arranged fixed rings (404). The adjusting mechanism comprises a shell (5) slidingly arranged between the left and right inner walls of the gantry (3), a first drive motor (6) fixedly installed on the upper surface of the gantry (3), a lifting lead screw (7) rotatably installed in the gantry (3) and fixed to the upper surface of the shell (5), a first worm (8) fixedly installed on the output shaft of the first drive motor (6), and a first worm wheel (9) fixedly installed on the outer surface of the lifting lead screw (7) and engaged with the first worm (8). The adjusting mechanism further comprises a second drive motor (10) fixedly installed in the shell (5), a moving lead screw (11) rotatably installed between the inner walls of the opposite sides of the shell (5), a sliding seat (14) slidingly installed in the shell (5) and threadedly connected with the lead screw (11), a second worm (12) fixedly installed on the output shaft of the second drive motor (10), and a second worm wheel (13) fixedly installed on the end of the moving lead screw (11) and engaged with the second worm (12), and the stirring motor (401) is bolted to the lower surface of the sliding seat (14).

2. The reaction device for preparing nano-silver powder by solid-liquid mixing method according to claim 1, characterized in that: The freezing tank (1) is provided with a freezing groove, the reaction tank (2) is provided with a reaction groove, the freezing groove is matched with a refrigeration device, and the reaction groove is provided with a refrigeration heating device.

3. The reaction device for preparing nano-silver powder by solid-liquid mixing method according to claim 1, characterized in that: A plurality of fixed rings (404) are vertically arranged from top to bottom, and the number of connecting lines (405) is several and they are equidistantly arranged.

4. The reaction device for preparing nano-silver powder by solid-liquid mixing method according to claim 2, characterized in that: The inner diameters of the freezing groove and the reaction groove are greater than the fixed ring (404), and the freezing tank (1) and the reaction tank (2) are horizontally arranged, and the heights of the freezing groove and the reaction groove are the same.

5. The reaction device for preparing nano-silver powder by solid-liquid mixing method according to claim 1, characterized in that: The inside of the gantry (3) is provided with a through hole, the lifting lead screw (7) penetrates the inside of the gantry (3) through the through hole, and the inner wall of the through hole is provided with a bearing connected with the outer surface of the lifting lead screw (7).

6. The reaction device for preparing nano-silver powder by solid-liquid mixing method according to claim 1, characterized in that: The left and right outer walls of the shell (5) are both fixedly installed with guide blocks (15), and the inner walls of the opposite sides of the gantry (3) are both provided with guide grooves (16) slidingly matched with the guide blocks (15).

7. The reaction device for preparing nano-silver powder by solid-liquid mixing method according to claim 1, characterized in that: The inside of the shell (5) is hollow, and the sliding seat (14) extends to the outside of the shell (5), and the inner walls of the opposite sides of the shell (5) are both fixedly installed with guide rods penetrating the inside of the sliding seat (14).

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