CN220513959U - Silver powder and powder high-homogenization high-speed dispersing device - Google Patents
Silver powder and powder high-homogenization high-speed dispersing device Download PDFInfo
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- CN220513959U CN220513959U CN202321811789.XU CN202321811789U CN220513959U CN 220513959 U CN220513959 U CN 220513959U CN 202321811789 U CN202321811789 U CN 202321811789U CN 220513959 U CN220513959 U CN 220513959U
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000000265 homogenisation Methods 0.000 title claims abstract description 35
- 239000000843 powder Substances 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000003756 stirring Methods 0.000 claims abstract description 35
- 239000006185 dispersion Substances 0.000 claims description 88
- 239000007788 liquid Substances 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000003607 modifier Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The utility model relates to the field of silver powder material manufacturing, in particular to a high-speed dispersing device for high homogenization of silver powder and powder, which comprises a dispersing kettle and an external circulating mechanism, wherein the dispersing kettle comprises a kettle body, a kettle cover and a stirring mechanism, the kettle cover is fixedly arranged at the top of the kettle body, the stirring mechanism is vertically arranged and stretches into the kettle cover and the kettle body, and the kettle cover is provided with a feed inlet and a connecting port connected with the external circulating mechanism; the bottom of the kettle body is provided with a discharge port, and a discharge valve is communicated with the outside of the discharge port; the bottom end of the external circulation mechanism is communicated with the discharge valve, and the top end of the external circulation mechanism is communicated with the connecting port of the kettle cover; according to the silver powder and powder high-homogenization high-speed dispersing device, the original structural design is adopted, so that the overall uniformity of the silver powder high-speed dispersing process can be improved, and the quality stability of silver powder products can be improved.
Description
Technical Field
The utility model relates to the field of silver powder material manufacturing, in particular to a silver powder high-homogenization high-speed dispersion device.
Background
Silver powder is an indispensable key conductive material in the photovoltaic industry, and a common silver powder production process is a liquid phase reduction method at present. The silver powder obtained through liquid phase reaction often has some agglomeration phenomenon, and the particle distribution is not uniform. In order to enable silver powder to be uniformly dispersed in a slurry system and meet printing requirements, homogenization modification treatment is needed. If the homogenization modification effect is poor, the suitability of the silver powder to a slurry system is affected, and therefore, the stability of the homogenization modification process directly affects the quality of the silver powder.
The dispersing device is a homogenization modifying device which is commonly used in the powder industry, and the materials are uniformly dispersed through stirring. The dispersing device is generally composed of a cylindrical container and a dispersing disc, the low-speed dispersing device cannot meet the production requirement, the developed high-speed dispersing device is higher in stirring and dispersing speed, aggregates among the powder can be easily opened, and dispersing efficiency is higher. However, the powder high-speed dispersing device in the prior art has certain defects, such as the problem that the whole high-speed dispersing process is uneven, and the dispersion liquid cannot be controlled in temperature, so that the dispersing effect has certain defects, and the fluctuation of the powder quality is easy to cause unstable quality of batch products.
Disclosure of Invention
The utility model aims to overcome the defects described in the background art, thereby realizing a silver powder and powder high-homogenization high-speed dispersing device.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the high-speed dispersing device comprises a dispersing kettle and an external circulating mechanism, wherein the dispersing kettle comprises a kettle body, a kettle cover and a stirring mechanism, the kettle cover is fixedly arranged at the top of the kettle body, the stirring mechanism is vertically arranged and stretches into the kettle cover and the kettle body, and the kettle cover is provided with a feed inlet and a connecting port connected with the external circulating mechanism; the bottom of the kettle body is provided with a discharge port, and a discharge valve is communicated with the outside of the discharge port; the bottom of external circulation mechanism with the bleeder valve intercommunication sets up, external circulation mechanism's top with the connector intercommunication of kettle cover sets up.
In the high-speed dispersing device for high homogenization of silver powder and powder, the external circulating mechanism comprises a three-way ball valve, a first connecting pipe, a second connecting pipe and a circulating pump, wherein two ends of the first connecting pipe are respectively communicated with a liquid inlet of the three-way ball valve and a liquid inlet of the circulating pump, one end of the second connecting pipe is communicated with a liquid outlet of the circulating pump, and the other end of the second connecting pipe is connected with a connecting port of the kettle cover and stretches into the kettle body.
In the silver powder and powder high-homogenization high-speed dispersing device, the stirring mechanism comprises a stirring rod driven by a stirring motor, a primary dispersing disc and a secondary dispersing disc, wherein the stirring rod is connected with an output shaft of the stirring motor, the primary dispersing disc and the secondary dispersing disc are coaxially and fixedly arranged on the stirring rod, and the diameter of the secondary dispersing disc is smaller than that of the primary dispersing disc.
In the silver powder and powder high-homogenization high-speed dispersing device, the kettle body is in an inverted conical shape, and the included angle between the generatrix of the conical surface where the side wall of the kettle body is positioned and the vertical central axis of the kettle body is not more than 45 degrees. The inclination of the kettle body is larger, the structure can enable the up-and-down flowing speed of silver powder dispersion liquid in the kettle to be faster, and the silver powder dispersion liquid has the function of collecting materials after high-speed dispersion is completed, so that the discharging is more convenient.
In the silver powder and powder high-homogenization high-speed dispersing device, the primary dispersing disc is positioned at one half of the height of the kettle body, and the secondary dispersing disc is positioned at one half of the height from the primary dispersing disc to the bottom of the kettle body. The first-stage dispersing plate and the second-stage dispersing plate are of zigzag disc structures, and the diameters of the first-stage dispersing plate and the second-stage dispersing plate are three quarters of the diameter of the cross section of the kettle body where the first-stage dispersing plate and the second-stage dispersing plate are located respectively.
In the silver powder and powder high-homogenization high-speed dispersing device, the device further comprises a temperature control mechanism, wherein the temperature control mechanism comprises a kettle outer jacket of a hollow structure, a water inlet and a water outlet, the water inlet and the water outlet are communicated with the inside of the kettle outer jacket, the water inlet is arranged on one side of the lower part of the kettle outer jacket, the water outlet is arranged on one side of the upper part of the kettle outer jacket, and the water inlet on the kettle outer jacket is connected with an external constant-temperature water bath to control the temperature of the kettle body. The kettle is characterized in that a temperature sensor is detachably arranged on the side wall of the kettle body, the temperature sensor monitors the temperature of silver powder dispersion liquid in the kettle body in real time, and the temperature control mechanism is connected with an external constant-temperature water bath through a water inlet and a water outlet, so that the temperature of the silver powder dispersion liquid in the kettle is kept constant, and the high-speed dispersion process is more stable.
The silver powder and powder high-homogenization high-speed dispersing device has the beneficial effects that:
1. according to the silver powder and powder high-homogenization high-speed dispersing device, the stirring rod is coaxially provided with the primary dispersing disc and the secondary dispersing disc, the saw-tooth-shaped structures of the primary dispersing disc and the secondary dispersing disc enable all parts of silver powder dispersion liquid to be subjected to very strong shearing force, the silver powder dispersion liquid is dispersed thoroughly, and the silver powder dispersion liquid from the primary dispersing disc to the bottom of the kettle can be dispersed effectively, and the silver powder dispersion liquid is dispersed uniformly and thoroughly.
2. According to the silver powder and powder high-homogenization high-speed dispersing device, the kettle body of the dispersing kettle is of a cone structure, the inclination angle of the cone body is large, the structural design is adopted, so that the up-and-down flowing speed of silver powder dispersing liquid in the kettle is higher, the silver powder dispersing liquid has the function of collecting materials after high-speed dispersing is finished, and the discharging is more convenient.
3. According to the silver powder and powder high-homogenization high-speed dispersing device, the external circulating mechanism is arranged outside the kettle body and is connected with the kettle bottom through the three-way ball valve, so that materials in the kettle can form reciprocating circulation, the overall uniformity of silver powder dispersion liquid in the high-speed dispersing process is improved, and the quality stability of finished silver powder is improved.
4. According to the silver powder and powder high-homogenization high-speed dispersing device, the temperature control mechanism is further arranged on the periphery of the kettle body, the temperature control system keeps the temperature of silver powder dispersion liquid in the kettle constant through jacket water bath, the dispersing effect is prevented from being influenced by precipitation of the modifier, and the stability of the high-speed dispersing process is ensured.
Drawings
FIG. 1 is a schematic diagram of a silver powder and powder high-homogenization and high-speed dispersion apparatus according to the present utility model;
FIG. 2 is a second schematic diagram of the structure of the high-speed dispersion apparatus for high-homogenization of silver powder according to the present utility model.
In the figure: 1-a kettle body and 2-a kettle cover;
3-stirring mechanism, 301-stirring motor, 302-stirring rod, 303-first-stage dispersion plate and 304-second-stage dispersion plate;
4-an external circulating mechanism, 401-a three-way ball valve, 401-a first connecting pipe, 402-a second connecting pipe and 403-a circulating pump;
5-a discharge valve, 6-a temperature control mechanism, 601-a kettle outer jacket, 602-a water inlet and 603-a water outlet;
7-temperature sensor.
Description of the embodiments
The silver powder and the powder high-homogenization high-speed dispersion device according to the present utility model will be described in more detail with reference to the accompanying drawings by means of specific embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1, the silver powder and powder high-homogenization high-speed dispersing device of the embodiment adopts an original structural design, so that the overall uniformity of the silver powder high-speed dispersing process can be improved, and the quality stability of silver powder products can be improved. It mainly includes the dispersion cauldron, the dispersion cauldron includes the cauldron body 1, takes the lid 2 and the rabbling mechanism 3 of feed inlet, the fixed top that sets up in the cauldron body 1 of lid 2, the vertical setting of rabbling mechanism 3 just stretches into the inside of lid 2 and the cauldron body 1, rabbling mechanism 3 pass through the support fixed set up in on the lid 2. Specifically, the stirring mechanism 3 includes a stirring rod 302 driven by a stirring motor 301, a primary dispersion disk 303 and a secondary dispersion disk 304, the stirring rod 302 is connected with an output shaft of the stirring motor 301, the primary dispersion disk 303 and the secondary dispersion disk 304 are coaxially and fixedly arranged on the stirring rod 302, and the diameter of the secondary dispersion disk 304 is smaller than that of the primary dispersion disk 303.
In this embodiment, referring to fig. 1, the primary dispersion plate 303 is located at half of the height of the kettle body 1, and the secondary dispersion plate 304 is located at half of the height from the primary dispersion plate to the bottom of the kettle body 1. The first-stage dispersion plate and the second-stage dispersion plate are of zigzag disc structures, and the zigzag structures of the first-stage dispersion plate 303 and the second-stage dispersion plate 304 enable all parts of the silver powder dispersion liquid to be subjected to very strong shearing force, so that the silver powder dispersion liquid is thoroughly dispersed. The diameters of the first-stage dispersing disc and the second-stage dispersing disc are respectively three fourths of the diameter of the cross section of the kettle body where the first-stage dispersing disc and the second-stage dispersing disc are positioned. The structure can ensure the flow efficiency of silver powder dispersion liquid on the basis of ensuring the dispersion effect. And the silver powder dispersion liquid from the first-stage dispersion plate to the bottom of the kettle can be effectively dispersed by the second-stage dispersion plate, and the dispersion is more uniform and thorough. According to working conditions, three layers, even four layers of dispersion discs can be arranged, and the arrangement structure of the dispersion discs is simply changed from the number and the layer number, and the design concept of the utility model is substantially the same, and the utility model is still included in the protection scope of the utility model.
In order to improve the overall uniformity of silver powder dispersion liquid in the high-speed dispersion process, an external circulation mechanism 4 is arranged outside the kettle body 1, and referring to fig. 1, a connection port connected with the external circulation mechanism 4 is further arranged on the kettle cover 2. Specifically, the external circulation mechanism 4 includes tee bend ball valve 401, first connecting pipe 402, second connecting pipe 403 and circulating pump 404, the both ends of first connecting pipe 402 respectively with tee bend ball valve 401 with the inlet intercommunication setting of circulating pump 404, the one end of second connecting pipe 403 with the liquid outlet intercommunication of circulating pump 404, the other end of second connecting pipe 403 with the connector of lid 2 links to each other and stretches into inside the cauldron body 1. The external circulation mechanism 4 can enable materials in the kettle to form reciprocating circulation, improves the overall uniformity of silver powder dispersion liquid in the high-speed dispersion process, and is beneficial to improving the quality stability of finished silver powder. In order to be convenient for wash the pipeline, first connecting pipe and second connecting pipe all can dismantle.
A discharge port is arranged at the bottom of the kettle body 1, and a discharge valve 5 is communicated with the outside of the discharge port; the bottom of external circulation mechanism with discharge valve 6 intercommunication sets up, external circulation mechanism's top with lid 1 the connector intercommunication sets up.
In order to increase the flow speed of the dispersion liquid in the kettle body, referring to fig. 1, the shape of the kettle body 1 of the dispersion kettle is designed into an inverted conical shape, and the included angle between the generatrix of the conical surface where the side wall of the kettle body is positioned and the vertical central axis of the kettle body is not more than 45 degrees. The inclination of the kettle body 1 is larger, the structure can enable the up-and-down flowing speed of silver powder dispersion liquid in the kettle to be faster, and the kettle has the function of collecting materials after high-speed dispersion is completed, so that the discharging is more convenient.
Example 2: the same points as those of embodiment 1 are not described in detail, except that:
in order to realize that the temperature of silver powder dispersion liquid in a kettle is constant, the dispersion effect is prevented from being influenced by precipitation of a modifier, in the embodiment, referring to fig. 2, a temperature control mechanism 6 is further arranged outside a kettle body 1 of the dispersion kettle, the temperature control mechanism comprises a kettle body jacket 601 with a hollow structure, a water inlet 602 and a water outlet 603, the water inlet 602 is communicated with the inside of the kettle body jacket, the water inlet 602 is arranged on one side of the lower part of the kettle body jacket 601, the water outlet 603 is arranged on one side of the upper part of the kettle body jacket 601, and the water inlet 602 on the kettle body jacket 601 is connected with an external constant-temperature water bath to control the temperature of the kettle body.
In order to prevent that the precipitation of the internal modifier of cauldron of dispersion cauldron from leading to high-speed dispersion effect poor, can dismantle on the cauldron body 1 lateral wall and be provided with temperature sensor 7, temperature sensor 7 is to the temperature real-time supervision of the internal silver powder dispersion of cauldron body 1, and temperature control mechanism 6 links to each other with external thermostatic water bath through water inlet and delivery port, makes the temperature of the internal silver powder dispersion of cauldron keep invariable, and high-speed dispersion process is more stable.
In this embodiment, the stirring device further comprises an electric control mechanism, the electric control mechanism is realized by a single chip microcomputer or a PLC, and the electric control mechanism controls the coordination work of the stirring motor 301 and the three-way ball valve 401 to realize full-course automatic control. The related industrial control of the singlechip and the PLC is mature prior art, which is not the utility model point of the utility model, and the structure and the control principle are not repeated here.
The working principle of the silver powder and powder high-homogenization high-speed dispersion device is as follows:
when silver powder needs to be dispersed at a high speed, materials such as silver powder, a modifier and a solvent are sequentially added into a high-speed dispersion kettle from a feed inlet on a kettle cover 2, a stirring motor 301 of a stirring mechanism 3 is started, a stirring rod 302 drives a primary dispersion disc 303 and a secondary dispersion disc 304 to rotate at a high speed, homogenization modification treatment is carried out on silver powder dispersion liquid, a constant-temperature water bath in a jacket 601 outside the kettle body is used for controlling the temperature of the silver powder dispersion liquid, a three-way ball valve 401 is opened to a circulation position, a discharge valve 5 and a circulation pump 404 are opened, so that the silver powder dispersion liquid sequentially circulates in a reciprocating manner in the kettle body 1 through the discharge hole, the discharge valve 5, the three-way ball valve 401, a first connecting pipe 402, the circulation pump 404 and a second connecting pipe 403, the three-way ball valve 401 is adjusted to the discharge position after high-speed dispersion is completed, and the circulation pump 404 is closed, so that the homogenization modification dispersion process of the silver powder dispersion liquid is completed.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The use of the terms "a" or "an" and the like in the description and in the claims do not necessarily imply a limitation on the amount. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
While the exemplary embodiments of the present utility model have been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that many changes and modifications can be made to the specific embodiments described above without departing from the spirit of the utility model, and that many combinations of technical features and structures can be made without departing from the scope of the utility model.
Claims (8)
1. A silver powder, powder high homogenization high-speed dispersion device, its characterized in that: the dispersing kettle comprises a kettle body, a kettle cover and a stirring mechanism, wherein the kettle cover is fixedly arranged at the top of the kettle body, the stirring mechanism is vertically arranged and stretches into the kettle cover and the kettle body, and the kettle cover is provided with a feed inlet and a connecting port connected with the external circulating mechanism; the bottom of the kettle body is provided with a discharge port, and a discharge valve is communicated with the outside of the discharge port; the bottom of external circulation mechanism with the bleeder valve intercommunication sets up, external circulation mechanism's top with the connector intercommunication of kettle cover sets up.
2. The silver powder and powder high-homogenization and high-speed dispersion device according to claim 1, wherein: the external circulation mechanism comprises a three-way ball valve, a first connecting pipe, a second connecting pipe and a circulation pump, wherein two ends of the first connecting pipe are respectively communicated with the three-way ball valve and a liquid inlet of the circulation pump, one end of the second connecting pipe is communicated with a liquid outlet of the circulation pump, and the other end of the second connecting pipe is connected with a connecting port of the kettle cover and stretches into the kettle body.
3. The silver powder and powder high-homogenization and high-speed dispersion device according to claim 1, wherein: the stirring mechanism comprises a stirring rod driven by a stirring motor, a primary dispersion plate and a secondary dispersion plate, wherein the stirring rod is connected with an output shaft of the stirring motor, the primary dispersion plate and the secondary dispersion plate are coaxially and fixedly arranged on the stirring rod, and the diameter of the secondary dispersion plate is smaller than that of the primary dispersion plate.
4. The silver powder and powder high-homogenization and high-speed dispersion apparatus as set forth in claim 3, wherein: the kettle body is in an inverted conical shape, and the included angle between the generatrix of the conical surface where the side wall of the kettle body is positioned and the vertical central axis of the kettle body is not more than 45 degrees.
5. The silver powder and powder high-homogenization and high-speed dispersion device according to claim 4, wherein: the first-stage dispersion plate is positioned at half of the height of the kettle body, and the second-stage dispersion plate is positioned at half of the height from the first-stage dispersion plate to the bottom of the kettle body.
6. The silver powder and powder high-homogenization and high-speed dispersion device according to claim 5, wherein: the first-stage dispersing plate and the second-stage dispersing plate are of zigzag disc structures, and the diameters of the first-stage dispersing plate and the second-stage dispersing plate are three quarters of the diameter of the cross section of the kettle body where the first-stage dispersing plate and the second-stage dispersing plate are located respectively.
7. The silver powder and powder high-homogenization and high-speed dispersion apparatus according to any one of claims 1 to 6, characterized in that: the kettle comprises a kettle body, a water inlet and a water outlet, wherein the kettle body is provided with a hollow structure, the water inlet is communicated with the inside of the kettle body, the water inlet is arranged on one side of the lower part of the kettle body, the water outlet is arranged on one side of the upper part of the kettle body, and the water inlet on the kettle body is externally connected with a constant-temperature water bath for controlling the temperature of the kettle body.
8. The silver powder and powder high-homogenization and high-speed dispersion device according to claim 7, wherein: the kettle is characterized in that a temperature sensor is detachably arranged on the side wall of the kettle body, and the temperature sensor monitors the temperature of silver powder dispersion liquid in the kettle body in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321811789.XU CN220513959U (en) | 2023-07-11 | 2023-07-11 | Silver powder and powder high-homogenization high-speed dispersing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321811789.XU CN220513959U (en) | 2023-07-11 | 2023-07-11 | Silver powder and powder high-homogenization high-speed dispersing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220513959U true CN220513959U (en) | 2024-02-23 |
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ID=89929997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321811789.XU Active CN220513959U (en) | 2023-07-11 | 2023-07-11 | Silver powder and powder high-homogenization high-speed dispersing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220513959U (en) |
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2023
- 2023-07-11 CN CN202321811789.XU patent/CN220513959U/en active Active
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