Device for recovering superfine silver powder from waste silver liquid
By integrating the reactor and the filtration device, the sand core and the stirring device are used to solve the problem of low efficiency in the waste silver liquid treatment in the prior art, efficient recycling of silver powder and simplification of work flow, and reducing costs.
Patent Information
- Application Number
- CN202421143545.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-23
AI Technical Summary
When the existing devices deal with waste silver liquid, the equipment structure is dispersed, the management is inconvenient, and the silver recycling efficiency is low, which increases the process and cost.
A system with integrated reactor and suction filtration device was designed. A sand core is installed at the bottom of the reactor. The suction filtration bottle is connected to the reactor through the sand core. A stirring device and a lifting bottom bracket are used to ensure the sealing of reaction and suction filtration and efficiency.
It improves the recycling rate and working efficiency of silver powder, reduces multiple material collection and suction filtration processes, saves costs, and achieves rapid and thorough recycling of silver powder.
Smart Images
Figure CN222342882U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device for recovering superfine silver powder from waste silver liquid, belonging to the technical field of extraction equipment. Background Art
[0002] The development of industry has improved people's living standards, but it has also seriously polluted the natural environment on which they depend for survival. Over-exploitation of resources has made people face the depletion of energy, and population growth has further increased energy consumption. The development and utilization of new energy sources are imminent, and green renewable resources solar power generation has developed rapidly in recent years. Silver paste is the most important conductive electrode in solar cells. It is made by screen printing on the cell sheet through ultra-fine silver powder. Finally, it is sintered. At present, the annual consumption of silver paste in my country is about 3,000 tons, and it is increasing every year. The silver content in silver paste is as high as 80% to 90%. Every year, a large amount of silver paste becomes waste silver paste due to quality problems or aging. Silver is a precious metal resource, so it can be seen how important it is to recover silver from waste silver paste.
[0003] In the industry of extracting and applying silver, waste silver liquid is generated. Direct discharge of waste silver liquid will pollute the environment and is not conducive to saving and reducing consumption. Therefore, it is necessary to recover the silver in the waste silver liquid. In the existing devices for treating silver-containing waste liquid, the equipment structure is scattered, the management is inconvenient, the silver recovery efficiency is low, the recovery effect is not good, the process is increased, and the cost is increased. Utility Model Content
[0004] The utility model aims to provide a device for recovering ultrafine silver powder from waste silver liquid to solve the technical problems existing in the prior art as mentioned above.
[0005] The technical solution provided by the utility model is as follows: a device for recovering ultrafine silver powder from waste silver liquid, comprising a reactor and a suction filtration device, wherein the reactor comprises a feed port, a vent hole, a stirring device and a sand core connected to the bottom of the reactor, the suction filtration device comprises a suction filtration bottle and a suction filtration pump, and the suction filtration bottle is connected to the reactor through the sand core.
[0006] The effect of adopting the above technical solution is that a sand core is arranged at the bottom of the reactor, so that the suction filtration device can be directly connected to the reactor, and after the silver powder is extracted, the silver powder can be quickly and thoroughly recovered from the reactor through the sand core, and there is no need to pour out the extracted silver powder from the feeding port of the reactor, thereby avoiding the situation that the silver powder is not poured out completely, and improving the recovery rate of silver; and the recovery of the waste silver liquid requires adding a plurality of substances to the reactor in sequence, and each time a substance is added, after the reaction is complete, the liquid therein is suction filtered through a suction filtration bottle, and then another substance can be directly added thereto until the reaction is completed, and there is no need to repeatedly take out the material and then perform suction filtration, thereby improving the work efficiency.
[0007] On the basis of the above technical solution, the present invention can also be improved as follows:
[0008] Furthermore, the suction filtration bottle comprises a bottle mouth and a suction filtration hole, the bottle mouth matches the sand core, the suction filtration hole is arranged on the side wall of the suction filtration bottle, and the suction filtration pump is connected to the suction filtration hole through a hose.
[0009] Furthermore, sealing rings are provided on the inner side of the bottle mouth and the outer side of the sand core, the bottle mouth and the sand core can be sealedly connected, and the sand core and the reactor can be sealedly connected.
[0010] The effect of adopting the above further scheme is that sealing rings are arranged on the inner side of the bottle mouth and the outer side of the sand core to prevent air leakage and liquid leakage, and to ensure that the filtration bottle and the reactor, and the sand core and the reactor can be sealed and connected, thereby ensuring the effect of reaction and filtration.
[0011] Furthermore, the stirring device includes a stirring rod and an impeller arranged at the lower end of the stirring rod, and the stirring rod is vertically arranged inside the reactor.
[0012] The effect of adopting the above further solution is that the impeller is arranged at the lower end of the stirring rod, which can make the stirring more uniform and improve the stirring efficiency.
[0013] Furthermore, the vent hole, the feeding port and the sand core are all provided with sealing covers.
[0014] The effect of adopting the above further scheme is that a sealing cover is set on the vent hole, and the sealing cover can be opened according to the specific situation during the reaction to ensure the reaction effect. The sealing cover of the vent hole is opened during filtration to ensure the normal filtration.
[0015] Furthermore, it also includes a bottom bracket, on which a water bath is arranged, and the water bath is used to heat the reaction kettle in a water bath.
[0016] The effect of adopting the above further scheme is that when extracting ultrafine silver powder from waste silver liquid, the reactor needs to be given an appropriate temperature. The temperature of the reaction can be controlled by a water bath pot arranged on the bottom bracket, and the bottom bracket also has the function of supporting the reactor to ensure the stability of the reactor.
[0017] Furthermore, the bottom bracket is a liftable bracket.
[0018] The effect of adopting the above further scheme is that the bottom bracket is arranged to be liftable. After the reaction of the materials in the reactor is completed, the bottom bracket can be lowered and a suction bottle can be installed for filtration. When the reaction is required, the bottom bracket can be directly raised to bathe and support the reactor, which is convenient and simple to operate.
[0019] Furthermore, the reaction kettle and the suction filtration bottle are made of pressure-resistant glass.
[0020] The effect of adopting the above further scheme is that the reaction kettle and the suction filtration bottle are made of pressure-resistant glass, and the pressure resistance of the pressure-resistant glass can ensure the normal conduct of the suction filtration.
[0021] Furthermore, the reaction kettle is a hollow sphere, and the suction filtration bottle is a hollow cone.
[0022] Furthermore, the stirring device is driven by a motor.
[0023] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:
[0024] The utility model discloses a device for recovering ultrafine silver powder from waste silver liquid, which integrates reaction and filtration, can reduce the process of multiple material taking, filtration and loading, and can complete the whole reaction process in only one reactor, and the material after the reaction can be directly filtered during the reaction, which greatly improves the work efficiency and saves the cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a structural schematic diagram of the reaction kettle and the suction filtration device of the utility model;
[0026] Figure 2 This is a schematic diagram of the reactor and bottom bracket structure of the utility model;
[0027] In the figure, 1. reactor; 11. feed port; 12. vent hole; 13. stirring device; 131. stirring rod; 132. impeller; 14. sand core; 2. suction bottle; 3. suction pump; 4. bottom bracket. DETAILED DESCRIPTION
[0028] The principles and features of the present invention are described below in conjunction with examples. The examples are only used to explain the present invention and are not used to limit the scope of the present invention.
[0029] like Figure 1 and Figure 2As shown, a device for recovering ultrafine silver powder from waste silver liquid comprises a reactor 1, a suction filtration device and a bottom bracket 4, wherein the reactor 1 comprises a feed port 11, a vent hole 12, a stirring device 13 and a sand core 14 connected to the bottom of the reactor 1, the suction filtration device comprises a suction filtration bottle 2 and a suction filtration pump 3, the suction filtration bottle 2 is connected to the reactor 1 through the sand core 14, a water bath is arranged on the bottom bracket 4, and the water bath is used to heat the reactor 1 in a water bath; the suction filtration bottle 2 comprises a bottle mouth and a suction filtration hole, the bottle mouth matches the sand core 14, the suction filtration hole is arranged on the side wall of the suction filtration bottle 2, and the suction filtration pump 3 is connected to the suction filtration hole through a hose; sealing rings are arranged on the inner side of the bottle mouth and the outer side of the sand core 14, the bottle mouth is sealed and connected to the sand core 14, and the sand core 14 can be sealed and connected to the reactor 1; the stirring device 13 comprises a stirring rod 131 and a setting The impeller 132 is at the lower end of the stirring rod 131, and the stirring rod 131 is vertically arranged inside the reactor 1; the vent hole 12, the feeding port 11 and the sand core 14 are all provided with sealing covers; the stirring device 13 is driven by a motor; the bottom bracket 4 is a liftable bracket; the reactor 1 and the suction bottle 2 are made of pressure-resistant glass; the reactor 1 is a hollow sphere, and the suction bottle 2 is a hollow cone; the feeding port 11 is much larger than the opening of the vent hole 12. The function of the vent hole 12 is to maintain the internal and external pressure balance during the reaction and filtration processes, and the function of the feeding port 11 is to add materials, clean the reactor, and install sand cores; the bottom bracket 4 includes four retractable columns, and the top of the bottom bracket 4 is a liftable profile frame, and the frame can be freely lifted and lowered by installing electric, pneumatic, hydraulic and other devices, and the height of the frame can also be adjusted manually.
[0030] When the ultrafine silver powder recovery device of the utility model is working, the reactor 1 is first fixed, the bottom bracket 4 is adjusted to the water bath pot just enough to heat the reactor 1, and then the sealing cover of the feed port 11 of the reactor 1 is opened, the waste silver liquid and the reaction reagent are added through the feed port 11, the water bath pot is opened and adjusted to the required temperature, the motor is started to drive the stirring rod 131 to stir, and during the reaction process, the sealing cover of the air vent 12 is opened or not opened according to the actual situation. After the reaction is completed, the bottom bracket 4 is lowered, the water bath pot is removed, and then the suction hole of the suction bottle 2 is connected to the suction pump 3 through a hose. , seal the bottle mouth of the suction filtration bottle 2 with the sand core 14, open the sealing cover of the sand core 14 and the air release hole 12, start the suction filtration pump 3, and perform suction filtration. After the suction filtration is completed, remove the suction filtration bottle 2 and push the sand core 14 upward. The sand core 14 is pushed into the reactor 1, and the extracted silver powder flows out from the bottom of the reactor 1. Then, water can be sprayed on the inner wall of the reactor 1 and the sand core 14 with a washing bottle from the feeding port 11. The silver powder adhering to the sand core 14 and the inner wall of the reactor 1 is also washed down and recovered. There is no need to manually remove the silver powder from the feeding port 11, which improves the work efficiency and the recovery rate of the silver powder. The next time the ultrafine silver powder is recovered, the sand core 14 can be manually sealed and installed at the bottom of the reactor 1 through the feeding port 11, and the sealing cover is closed to add materials and react.
[0031] The utility model is a reaction process and suction filtration integrated device. The bottom bracket 4 can be raised and lowered to heat the reactor 1 in a water bath or remove the water bath pot. The reactor 1 does not need to be moved, and the reaction liquid does not need to be taken away for suction filtration. The suction filtration bottle 2 and the reactor 1 are directly sealed and connected through the sand core 14 for suction filtration. After the suction filtration is completed, the obtained silver powder does not need to be manually taken away from the feed port 11. The sand core 14 can be simply pushed up to make the silver powder fall. The fallen silver powder is collected and dried to obtain ultrafine silver powder. The utility model saves the process of multiple disassembly, filtration, loading and unloading, greatly improves work efficiency, reduces the loss of silver powder, and saves costs.
[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A device for recovering ultrafine silver powder from waste silver liquid, characterized in that: The invention comprises a reaction kettle (1) and a suction filtration device, wherein the reaction kettle (1) comprises a feed port (11), a vent hole (12), a stirring device (13) and a sand core (14) connected to the bottom of the reaction kettle (1); the suction filtration device comprises a suction filtration bottle (2) and a suction filtration pump (3); the suction filtration bottle (2) is connected to the reaction kettle (1) via the sand core (14).
2. The device for recovering ultrafine silver powder from waste silver liquid according to claim 1, characterized in that: The suction filter bottle (2) comprises a bottle mouth and a suction filter hole, the bottle mouth matches the sand core (14), the suction filter hole is arranged on the side wall of the suction filter bottle (2), and the suction filter pump (3) is connected to the suction filter hole through a hose.
3. The device for recovering ultrafine silver powder from waste silver liquid according to claim 2, characterized in that: The inner side of the bottle mouth and the outer side of the sand core (14) are both provided with sealing rings; the bottle mouth and the sand core (14) can be sealedly connected; and the sand core (14) and the reaction kettle (1) can be sealedly connected.
4. The device for recovering ultrafine silver powder from waste silver liquid according to claim 1, characterized in that: The stirring device (13) comprises a stirring rod (131) and an impeller (132) arranged at the lower end of the stirring rod (131); the stirring rod (131) is vertically arranged inside the reaction kettle (1).
5. The device for recovering ultrafine silver powder from waste silver liquid according to claim 1, characterized in that: The air release hole (12), the feed port (11) and the sand core (14) are all provided with sealing covers.
6. The device for recovering ultrafine silver powder from waste silver liquid according to claim 1, characterized in that: It also comprises a bottom support (4), on which a water bath is arranged, and the water bath is used to heat the reaction kettle (1) in a water bath.
7. The device for recovering ultrafine silver powder from waste silver liquid according to claim 6, characterized in that: The bottom bracket (4) is a liftable bracket.
8. The device for recovering ultrafine silver powder from waste silver liquid according to claim 1, characterized in that: The reaction kettle (1) and the suction filtration bottle (2) are made of pressure-resistant glass.
9. The device for recovering ultrafine silver powder from waste silver liquid according to claim 1, characterized in that: The reaction kettle (1) is a hollow sphere, and the suction filtration bottle (2) is a hollow cone.
10. The device for recovering ultrafine silver powder from waste silver liquid according to claim 1, characterized in that: The stirring device (13) is driven by a motor.