CN206335134U - A kind of equipment for preparing solar panel silver powder - Google Patents
A kind of equipment for preparing solar panel silver powder Download PDFInfo
- Publication number
- CN206335134U CN206335134U CN201621300292.1U CN201621300292U CN206335134U CN 206335134 U CN206335134 U CN 206335134U CN 201621300292 U CN201621300292 U CN 201621300292U CN 206335134 U CN206335134 U CN 206335134U
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- Prior art keywords
- reactor
- silver
- silver powder
- solar panel
- mixing
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000002156 mixing Methods 0.000 claims abstract description 21
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- -1 reactor Chemical compound 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000000243 solution Substances 0.000 abstract description 17
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 239000013078 crystal Substances 0.000 abstract description 11
- 230000006911 nucleation Effects 0.000 abstract description 11
- 238000010899 nucleation Methods 0.000 abstract description 11
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000009826 distribution Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000012266 salt solution Substances 0.000 abstract description 7
- 239000002245 particle Substances 0.000 description 12
- 229910052709 silver Inorganic materials 0.000 description 9
- 239000004332 silver Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000010946 fine silver Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model discloses a kind of equipment for preparing solar panel silver powder, including reactor, it is characterised in that：The reactor includes mixing reactor and reactor, and mixing reactor is connected with reactor by discharge gate；Silver salt solution charging aperture and reducing agent charging aperture are provided with mixing reactor and reactor；Silver-colored crystal seed nucleation process and growth course in silver powder production process pass through mixing reactor and reactor and separated by the utility model, it is to avoid interferes；Newborn silver atoms can directly be adsorbed in its surface by the silver-colored crystal seed of generation, and newborn silver atoms directly participate in the growth of silver-colored crystal seed；The uniform mixing of reaction solution is realized by way of mutually colliding simultaneously, the speed of reaction and the utilization rate of reaction solution is improved；The silver powder produced using device described in the utility model has size distribution uniform, the advantages of pattern is regular.
Description
Technical field
The utility model is related to solar panel technology field, and in particular to a kind of solar panel silver powder of preparing
Equipment.
Background technology
Solar cell front side silver paste is the core starting materials for preparing front electrode of solar battery.Front electrode plays remittance
Colleeting comb, the important function of derived current.The performances such as the ratio of width to height, compactness, the adhesive force of front electrode are all to solar cell
Battery efficiency and the life-span have important influence.Solar cell front side silver paste includes super fine silver powder, glass dust, You Jirong
Agent.Wherein, silver powder accounts for 90% or so of solar cell front side silver paste solid content, and its quality directly affects the efficiency of battery.Too
Positive energy cell front side silver paste needs particle diameter distribution between 0.5 μm ~ 2 μm, even particle size distribution, high dispersive, high-tap density（>
5g/cm3）Spherical silver powder, in favor of forming low resistance, accurate fine and close conductor wire main road.
Current industrialization prepares the method for super fine silver powder based on solution phase chemical reduction.The country prepares the biography of super fine silver powder
System technique is using reactor as reaction vessel, using churned mechanically mode, by putting into reductant solution in silver salt solution
Realize the precipitation of Argent grain.This method puts into termination from raw material, there is silver particles generation all the time, and nucleation is same with nucleus growth
Shi Jinhang, it is impossible to realize control to silver powder key parameter, causes that the silver powder particle diameter distribution of production is wide, and crystallinity is poor, and pattern is more
Sample, tap density is low, it is difficult to meet the technical need of solar cell front side silver paste.
Publication No. CN202498214U Chinese utility model patent discloses a kind of big rule on October 24th, 2012
Mould continuously produces the device of nano-silver powder, including a reactor being made of stainless steel, and is provided with the circumference of reactor
At least three nozzle, nozzle is distributed uniformly and circumferentially, and the axial direction of any one nozzle is each parallel to itself and rustless steel container company
Connect the tangent line at place.
Although the utility model can realize the large-scale continuous production of silver powder, there is a defect, i.e. silver powder in it
The course of reaction of preparation is carried out in a same vessel all the time, and nucleation process and the growth course of its silver-colored crystal seed can be interfered,
Difficult to the control of silver powder particle diameter and pattern, the silver powder particle diameter distribution of production is wide, crystallinity is poor, pattern is irregular.
The content of the invention
Wide for silver powder particle diameter distribution present in prior art, the defect such as crystallinity is poor, pattern is irregular, this practicality is new
Type discloses a kind of solar panel silver paste silver powder preparation method, the solar panel silver paste produced using the utility model
Silver powder has even particle size distribution, the advantages of pattern is regular.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of equipment for preparing solar panel silver powder, including reactor, it is characterised in that：The reactor includes mixed
Reactor and reactor are closed, the mixing reactor is connected with reactor by discharge gate；The mixing reactor and reactor
On be provided with silver-colored solution feed mouthful and reducing agent charging aperture.
Inner casing and shell are provided with the mixing reactor, the shell is connected with reactor, shell connects with reactor
It is taper necking down structure to meet place, and discharge gate is located at the top of taper necking down.
The inner shell bottom is provided with taper necking, and the taper of taper necking is less than the taper of taper necking down, taper necking
Annular liquid seam is provided between bottom and shell, the height of annular liquid seam is 0.5-2mm.
It is provided with deflector between the inner casing and shell, deflector is staggered on shell and inner casing, and deflector
It is downward-sloping.
Supersonic generator is provided with the reactor.
Agitating paddle is provided with the reactor, agitating paddle is connected with motor.
Compared with prior art, the utility model has the advantages that：
1st, the utility model is by mixture generator and reactor is by the nucleation process in silver powder preparation process and grows
Journey is separated, it is to avoid two courses of reaction are interfered, and the particle diameter of the silver-colored crystal seed of nucleation process generation can effectively be controlled
System, while newly-generated silver atoms can directly be adsorbed in the surface in crystalline substance by the silver-colored crystal seed produced, directly participates in the life of crystal seed
It is long, the utilization rate of silver atoms and the particle diameter of silver powder are improved, control silver powder size and the purpose of pattern is reached.
2nd, the junction of the utility model mixing reactor and reactor is provided with taper necking down, and silver salt is molten and reducing agent is molten
Liquid mutually hits in the Ye Liu intersections of necking down, so that silver salt solution can be mixed more uniformly with reductant solution, carries
The nucleation rate and nucleation quantity of high silver crystal seed, sufficiently make use of raw materials for production, mitigate the environmental protection pressure of enterprise, while can also
Reduce the production cost of enterprise.
3rd, inner shell bottom of the present utility model is provided with taper necking, and annular is provided between taper necking bottom and shell
Liquid is stitched, and controls the reacting dose of each reaction solution, reaches the purpose of control reaction speed, while annular liquid seam can improve silver salt solution
With the speed of reductant solution, make its shock dynamics bigger, mix more uniform, improve the speed and nucleation quantity of reaction.
4th, deflector is staggeredly equipped between inner casing and shell of the present utility model, the solution for entering reactor is added
Speed, puies forward the intensity that high liquid flow is mutually hit, and solution is mixed more uniform, improves the speed and nucleation quality of nucleation.
5th, supersonic generator is provided with reactor of the present utility model, can be weakened by the vibration of ultrasonic wave with chivalrous person
The reunion for the silver ion that silver salt is generated after being mixed with reducing agent, while solid particle accumulation can also be avoided to cause pipeline blockage.
6th, agitating paddle is provided with reactor of the present utility model, is made by the stirring of agitating paddle after impingement mix
Secondary mixing occurs for reaction solution, improves the uniformity of solution, on the one hand beneficial to the formation speed for improving silver powder, on the other hand then sharp
In the generation of silver atoms, the utilization rate of raw material, reduction environmental protection pressure and production cost are improved.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Reference：1st, mixing reactor, 2, reactor, 3, silver-colored solution feed mouthful, 4, reducing agent charging aperture, 5, inner casing,
6th, shell, 7, discharge gate, 8, annular liquid seam, 9, deflector, 10, supersonic generator, 11, agitating paddle.
Embodiment
Below will the utility model is described in further detail by specific embodiment：
Embodiment 1
The present embodiment is as most preferred embodiment of the present utility model, and it discloses a kind of solar panel silver powder for preparing
Equipment, including reactor, it is characterised in that：The reactor includes mixing reactor 1 and reactor 2, the mixing reactor 1
On be provided with inner casing 5 and shell 6, the shell 6 is connected with reactor 2, and the junction of shell 6 and reactor 2 is taper necking down
Structure, the top of taper necking down structure is provided with discharge gate 7, and discharge gate 7 connects mixing reactor 1 with reactor 2；It is described mixed
Close and silver-colored solution feed mouthful 3 and reducing agent charging aperture 4 are provided with reactor 1 and reactor 2.
The bottom of inner casing 5 is provided with taper necking, and the taper of taper necking is less than the taper of taper necking down, taper necking
Annular liquid seam 8 is provided between bottom and shell 6, the height of annular liquid seam 8 is 0.5-2mm.
It is provided with deflector 9 between the inner casing 5 and shell 6, deflector 9 is staggered on shell 6 and inner casing 5, and
Deflector 9 is downward-sloping.
Supersonic generator 10 is provided with the reactor 2.
Agitating paddle 11 is provided with the reactor 2, agitating paddle 11 is connected with motor.
Operation principle of the present utility model is：Silver salt solution by silver salt solution charging aperture and is gone back respectively with reductant solution
Former agent charging aperture enters in mixing reactor, in mixing reactor after the acceleration of deflector, with faster speed in cone
The mutual collisional mixing of shape bottleneck, at the same occur silver-colored crystal seed into nuclear reaction；Reaction solution containing silver-colored crystal seed is entered by discharge gate
Enter in reactor, and with the silver salt solution and reducing agent added again occur in the presence of agitating paddle it is secondary mix, and complete
The growth course of silver-colored nucleus, the silver powder needed for generation.
The utility model can be prevented effectively from interfering for silver-colored crystal seed nucleation process and growth course, the silver powder tool of generation
Have that particle diameter distribution is uniform, pattern is regular a little, while the utilization rate of raw material can also be effectively improved using the utility model, subtract
The discharge pressure and production cost of light enterprise.
Claims (6)
1. a kind of equipment for preparing solar panel silver powder, including reactor, it is characterised in that：The reactor includes mixing
Reactor（1）And reactor（2）, the mixing reactor（1）And reactor（2）Pass through discharge gate（7）Connection；The mixing is anti-
Answer device（1）And reactor（2）On be provided with silver-colored solution feed mouthful（3）With reducing agent charging aperture（4）.
2. a kind of equipment for preparing solar panel silver powder according to claim 1, it is characterised in that：The mixing is anti-
Answer device（1）On be provided with inner casing（5）And shell（6）, the shell（6）With reactor（2）It is connected, shell（6）With reactor（2）
Junction is taper necking down structure, discharge gate（7）Positioned at the top of taper necking down.
3. a kind of equipment for preparing solar panel silver powder according to claim 2, it is characterised in that：The inner casing
（5）Bottom is provided with taper necking, and the taper of taper necking is less than the taper of taper necking down, taper necking bottom and shell（6）
Between be provided with annular liquid seam（8）, annular liquid seam（8）Height be 0.5mm -2mm.
4. a kind of equipment for preparing solar panel silver powder according to claim 2, it is characterised in that：The inner casing
（5）With shell（6）Between be provided with deflector（9）, deflector（9）It is staggered in shell（6）With inner casing（5）On, and water conservancy diversion
Plate（9）It is downward-sloping.
5. a kind of equipment for preparing solar panel silver powder according to claim 1, it is characterised in that：The reactor
（2）On be provided with supersonic generator（10）.
6. a kind of equipment for preparing solar panel silver powder according to claim 1, it is characterised in that：The reactor
（2）Inside it is provided with agitating paddle（11）, agitating paddle（11）It is connected with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621300292.1U CN206335134U (en) | 2016-11-30 | 2016-11-30 | A kind of equipment for preparing solar panel silver powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621300292.1U CN206335134U (en) | 2016-11-30 | 2016-11-30 | A kind of equipment for preparing solar panel silver powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206335134U true CN206335134U (en) | 2017-07-18 |
Family
ID=59307688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621300292.1U Active CN206335134U (en) | 2016-11-30 | 2016-11-30 | A kind of equipment for preparing solar panel silver powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206335134U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109663929A (en) * | 2019-01-24 | 2019-04-23 | 兰州石化职业技术学院 | A kind of preparation method of rule nanogold particle |
| CN111842929A (en) * | 2020-07-30 | 2020-10-30 | 金川集团股份有限公司 | Double-layer tubular reactor for rapidly synthesizing superfine silver powder and synthesis method of silver powder |
| CN114242339A (en) * | 2021-12-24 | 2022-03-25 | 西南科技大学 | Nano silver wire preparation device and preparation method of front silver paste for solar cell |
-
2016
- 2016-11-30 CN CN201621300292.1U patent/CN206335134U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109663929A (en) * | 2019-01-24 | 2019-04-23 | 兰州石化职业技术学院 | A kind of preparation method of rule nanogold particle |
| CN109663929B (en) * | 2019-01-24 | 2021-07-23 | 兰州石化职业技术学院 | Preparation method of regular nano gold particles |
| CN111842929A (en) * | 2020-07-30 | 2020-10-30 | 金川集团股份有限公司 | Double-layer tubular reactor for rapidly synthesizing superfine silver powder and synthesis method of silver powder |
| CN111842929B (en) * | 2020-07-30 | 2022-11-11 | 金川集团股份有限公司 | Double-layer tubular reactor for rapidly synthesizing superfine silver powder and synthesis method of silver powder |
| CN114242339A (en) * | 2021-12-24 | 2022-03-25 | 西南科技大学 | Nano silver wire preparation device and preparation method of front silver paste for solar cell |
| CN114242339B (en) * | 2021-12-24 | 2023-09-22 | 西南科技大学 | Device and method for preparing nano silver wire of front silver paste for solar cell |
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