CN212894271U

CN212894271U - Waste water silver recovery device

Info

Publication number: CN212894271U
Application number: CN202021549987.XU
Authority: CN
Inventors: 陈涛; 杨正海; 蒋丽萍
Original assignee: Suzhou Gefan Hardware Plastic Industry Co ltd
Current assignee: Suzhou Gefan Hardware Plastic Industry Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-06
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a silver recovery unit of waste water, including recoverer and replacement groove, the recoverer is the cylinder structure, and the side at recoverer top is equipped with the water inlet that is used for letting in silver-containing waste water, is equipped with electrolysis mechanism in the recoverer, still is equipped with rotatory rabbling mechanism in the recoverer, and the entry linkage of replacement groove is equipped with a plurality of zinc strips in the replacement groove in the export of recoverer, and the one end that the recoverer was kept away from to the replacement groove is equipped with the delivery. The device can recover more metal silver, reduce the cost of wastewater treatment, and improve economic benefits.

Description

Waste water silver recovery device

Technical Field

The utility model relates to a waste water treatment technical field, concretely relates to waste water silver recovery unit.

Background

In electronic products, silver is widely used as a good conductor, and in industrial production, silver plating is often used to manufacture products due to cost limitations. The waste water of the silver plating process contains a large amount of residual silver, and in the actual production process, a set of separate electrolytic silver recovery device is generally arranged for extracting silver metal in the waste water to carry out recovery work. At present, the equipment used in the industry almost has the condition of incomplete recovery and still has residual content. The recovery rate of the existing recovery equipment is 85% -90%, and 10% -15% of residual amount is still discharged into a sewage system, so that not only is waste, but also environmental pollution is caused. In addition, the repeated circulation of a plurality of metal slag fragments in the recycling and washing system can cause the physical residue on the surface or the position of a hole seam of a product, and the quality of the product is influenced.

Disclosure of Invention

For overcoming the not enough of prior art, the utility model provides a waste water silver recovery unit, it can retrieve more metallic silver, reduces waste water treatment's cost, improves economic benefits.

In order to achieve the purpose, the utility model discloses a silver recovery unit of waste water, including recoverer and replacement groove, the recoverer is the cylinder structure, and the side at recoverer top is equipped with the water inlet that is used for letting in silver-containing waste water, is equipped with electrolysis mechanism in the recoverer, still is equipped with rotatory rabbling mechanism in the recoverer, and the entry linkage of replacement groove is equipped with a plurality of zinc strips in the replacement groove in the export of recoverer, and the one end that the recoverer was kept away from to the replacement groove is equipped with.

Furthermore, the electrolysis mechanism comprises an anode plate arranged on the inner wall of the recoverer, the anode plate surrounds the circumference, and a cathode bar is arranged inside the recoverer.

Further, the rotary stirring mechanism comprises a rotary plate arranged between the anode plate and the cathode bar, and the rotary plate can rotate around the axis of the collector.

Furthermore, a recorder is arranged on the rotating plate.

Furthermore, the bottom of the recoverer is funnel-shaped, and a first filter cloth net is arranged on an opening at the bottom of the recoverer.

Furthermore, a buffer is arranged between the bottom of the recoverer and the inlet of the replacement groove.

Furthermore, a second filter cloth net is arranged on a water outlet of the replacement tank.

Furthermore, a liquid level controller is arranged in the recoverer close to the water inlet.

Furthermore, a current/voltage display is arranged on the outer wall of the recoverer.

The utility model discloses a waste water silver recovery unit has following advantage under the state of continuity work:

1. the silver ions brought into the recoverer can be recovered in time;

2. the water recovered in the first section returns to the recoverer again, and no residue appears after filtering treatment;

3. unnecessary loss of silver in the wastewater is reduced, so that the phase change reduces the production cost and increases the economic benefit.

Drawings

The invention will be further described and illustrated with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of the whole waste water silver recovery device according to the preferred embodiment of the present invention.

Reference numerals: 1. a water inlet; 2. a liquid level controller; 3. a rotating plate; 4. a voltage/current display screen; 5. a cathode bar; 6. an anode plate; 7. a recorder; 8. a recoverer; 9. a first filter cloth web; 10. a replacement tank; 11. zinc strips; 12. a second filter cloth net; 13. and (7) a water outlet.

Detailed Description

The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1, the utility model discloses waste water silver recovery unit of preferred embodiment, including recoverer 8 and replacement groove 10, recoverer 8 is the cylinder structure, and the side at recoverer 8 top is equipped with the water inlet 1 that is used for letting in silver-containing waste water, and the nearly water inlet 1 department is equipped with liquid level controller 2 in the recoverer 8, is equipped with electric current/voltage display on the 8 outer walls of recoverer.

As shown in figure 1, the inner wall of the recoverer 8 is provided with an anode plate 6, the anode plate 6 surrounds the circumference, and the inside of the recoverer 8 is provided with a cathode bar 5. A rotating plate 3 is arranged between the anode plate 6 and the cathode bar 5, the rotating plate 3 can rotate around the axis of the recycling device 8, and a recorder is arranged on the rotating plate 3.

As shown in fig. 1, the bottom of the recoverer 8 is funnel-shaped, and a first filter cloth net 9 is arranged on an opening at the bottom of the recoverer 8. The inlet of the replacement tank 10 is connected to the outlet of the recoverer 8, and a buffer is provided between the bottom of the recoverer 8 and the inlet of the replacement tank 10. A plurality of zinc strips 11 are arranged in the replacement tank 10, and the noble metal with extremely low concentration is further replaced by a chemical replacement reaction method by utilizing the potential difference between the zinc strips 11 and silver, so that the recovery rate can reach more than 99 percent.

As shown in fig. 1, a water outlet 13 is arranged at one end of the replacement tank 10 far away from the recoverer 8, and a second filter cloth 12 is arranged in the water outlet 13. Through twice filter equipment, can realize filtering the little silver sediment in the recoverer 8 during the use, also can be to the particulate matter secondary filtration in the waste water that gets into replacement groove 10 to can guarantee not to have big particulate matter to appear in the washing.

The specific implementation process comprises the following steps:

the recovered water is pumped into a recoverer 8 by a pump, and the waste water is subjected to circulating electrolytic treatment by the cathode bar 5 and the anode plate 6, so that the metal silver ions are adsorbed on the surface of the cathode bar 5. In order to prevent the deposition of an excessively thick silver layer and to reinforce the movement of the material, the electrolyte supplied from the upper surface is also rotated and flowed when the rotary plate 3 is rotated, and when the deposited silver layer is deteriorated, a defective plating layer is deposited from the cathode bar 5 to maintain the limiting current density. Because the precipitated silver is loose and easy to fall off, a first filter cloth net 9 is additionally arranged at the bottom of the recoverer 8, silver residues are filtered through the first filter cloth net, then the recovered water containing low-concentration silver ions after electrolytic separation is discharged into a replacement tank 10, the residual silver ions are replaced and separated out through a replacement reaction method in the tank, finally the filtered return water returns to the recovery tank, and the recovery rate of the silver can reach about 99 percent after the whole set of treatment.

1. the silver ions brought into the recoverer can be recovered in time;

The above detailed description merely describes the preferred embodiments of the present invention and does not limit the scope of the present invention. Without departing from the design concept and spirit scope of the present invention, the ordinary skilled in the art should belong to the protection scope of the present invention according to the present invention provides the text description and drawings to the various modifications, replacements and improvements made by the technical solution of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. The waste water silver recovery device is characterized by comprising a recoverer and a replacement groove, wherein the recoverer is of a cylindrical structure, a water inlet for introducing silver-containing waste water is formed in the side face of the top of the recoverer, an electrolysis mechanism is arranged in the recoverer, a rotary stirring mechanism is further arranged in the recoverer, an inlet of the replacement groove is connected to an outlet of the recoverer, a plurality of zinc strips are arranged in the replacement groove, and a water outlet is formed in one end, far away from the recoverer, of the replacement groove.

2. The waste water silver recovery device of claim 1, wherein the electrolysis mechanism comprises an anode plate arranged on the inner wall of the recoverer, the anode plate surrounds the circumference, and a cathode bar is arranged inside the recoverer.

3. The wastewater silver recovery device of claim 2, wherein the rotary stirring mechanism comprises a rotating plate disposed between the anode plate and the cathode bar, the rotating plate being rotatable about the axis of the receiver.

4. The waste water silver recovery apparatus of claim 3, wherein a recorder is provided on the rotating plate.

5. The waste water silver recovery device of claim 4, wherein the bottom of the recoverer is funnel-shaped, and a first filter cloth net is arranged on an opening at the bottom of the recoverer.

6. The waste water silver recovery device of claim 5, wherein a buffer is provided between the bottom of the recycler and the inlet of the replacement tank.

7. The waste water silver recovery device of claim 1, wherein a second filter cloth net is arranged on the water outlet of the replacement tank.

8. The waste water silver recovery device of claim 1, wherein a level controller is disposed in the recovery device proximate to the water inlet.

9. The waste water silver recovery device of claim 1, wherein a current/voltage display is provided on an outer wall of the recovery device.