Environment-friendly silver ornament electroplating waste liquid circulating treatment equipment

Abstract

The utility model discloses environment-friendly silver ornament electroplating waste liquid circulating treatment equipment, which belongs to the field of waste liquid treatment and comprises a peripheral frame and a heat collection component fixedly connected onto the peripheral frame. The heat collecting assembly comprises a heat pipe fixedly connected to the peripheral frame, a heat collecting pipe fixedly connected to one end of the heat pipe, a heat flow pipe fixedly connected to the middle of the heat collecting pipe, a cold collecting pipe fixedly connected to the other end of the heat pipe, a cold flow pipe fixedly connected to the end of the cold collecting pipe and a heat pump fixedly connected to the end of the cold flow pipe. According to the utility model, heat energy of the sun is collected through the heat pipe and is enriched in the heat-conducting medium, and the heat is transferred with sewage in the evaporation cylinder body in the heat exchange pipe through the heat-conducting medium to heat the sewage, so that liquid water in the sewage is changed into water vapor, thereby enriching harmful substances and concentrating the sewage; the energy waste caused by electric heating or combustion heating is reduced, the environment is protected, and the cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of waste liquid treatment technology, specifically to an environmentally friendly waste liquid recycling treatment device for silver jewelry electroplating. Background Technology

[0002] With the development of the silver jewelry manufacturing industry, electroplating technology has been widely used as a key technology to improve the aesthetics and durability of products. However, this process has also brought about the problem of treating silver-containing waste liquid. Early treatment methods mainly relied on chemical precipitation, which involves adding chemical agents to make silver ions form insoluble compounds and precipitate. However, this method not only requires a large amount of chemical agents, but may also produce sludge containing heavy metals, causing secondary pollution.

[0003] In addition, traditional treatment technologies are not environmentally friendly, leading to resource waste, increased production costs, and additional burdens on the environment. Therefore, how to use cleaner and lower-cost technologies to enrich and treat harmful substances in waste liquid has become an important issue.

[0004] An investigation revealed that a Chinese utility model patent discloses a waste liquid treatment device and an electroplating system (publication number: CN222540565U), which includes an installation frame, a treatment box, an anode plate, and a cathode plate. The treatment box is installed in the installation frame and is suitable for immersion in waste liquid. The treatment box includes a box body with a cavity and an opening at the top of the box body. At least one side of the box body has a perforated hole, and an ion membrane is covered at the perforated hole. The ion membrane is used to separate water molecules and acid radical ions in the waste liquid. The anode plate is located in the cavity through the opening, which is suitable for introducing acid radical ions into the cavity. The cathode plate is located in the waste liquid outside the treatment box and is electrically connected to the anode plate. This utility model reduces metal ions in the waste liquid on the cathode plate through electrolysis, and the acid radical ions in the waste liquid enter the cavity and concentrate, effectively separating them from the water molecules in the waste liquid.

[0005] While the aforementioned patents enable the separation of waste liquid through the use of ion exchange membranes, allowing for the removal of major pollutants and reuse, thus reducing water waste, lowering waste liquid discharge, and effectively saving on waste liquid treatment costs, the high cost and low durability of ion exchange membranes necessitate their replacement after prolonged use. This adds an extra burden for medium and large enterprises. Therefore, finding a more cost-effective and environmentally friendly method to enrich harmful substances in waste liquids and recover silver is crucial for medium and large enterprises.

[0006] Therefore, this utility model provides an environmentally friendly silver jewelry electroplating waste liquid recycling treatment equipment to solve the above problems. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] This utility model provides an environmentally friendly waste liquid recycling treatment device for silver jewelry electroplating, which aims to solve the problems mentioned in the background art.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly silver jewelry electroplating waste liquid recycling treatment equipment, including an outer frame and a heat collection component, which is fixedly connected to the outer frame;

[0011] The heat collection assembly includes a heat pipe fixedly connected to the outer frame, a heat manifold fixedly connected to one end of the heat pipe, a heat flow pipe fixedly connected to the middle of the heat manifold, a cold manifold fixedly connected to the other end of the heat pipe, a cold flow pipe fixedly connected to the end of the cold manifold, and a heat pump fixedly connected to the end of the cold flow pipe.

[0012] The evaporation assembly is located inside the outer frame;

[0013] The heat convection component is fixedly connected to the evaporation component;

[0014] The electrolysis unit is fixedly connected to the outside of the evaporation unit.

[0015] As a preferred technical solution of this application, the evaporation assembly includes an evaporation cylinder disposed inside the outer frame, a sewage pipe fixedly connected to the evaporation cylinder, a drain pipe fixedly connected to the evaporation cylinder, a pipe hole opened on the evaporation cylinder, a steam pipe fixedly connected to the top of the evaporation cylinder, a motor fixedly connected to the top of the evaporation cylinder, a lead screw fixedly connected to the end of the motor, a sleeve slidably connected to the lead screw, a pull rod fixedly connected to the sleeve, a cleaning plate fixedly connected to the pull rod, and a water valve fixedly connected to the drain pipe.

[0016] As a preferred technical solution of this application, the heat convection assembly includes a heat exchange tube fixedly connected to the tube hole, a cold round tube fixedly connected to one end of the heat exchange tube, a hot round tube fixedly connected to the other end of the heat exchange tube, and a pump tube fixedly connected to the cold round tube.

[0017] As a preferred technical solution of this application, the electrolysis assembly includes an electrolysis tank fixedly connected to the end of the drain pipe, an electrode plate fixedly connected to the electrolysis tank, and a flat tube fixedly connected to the electrolysis tank.

[0018] As a preferred technical solution of this application, the hot circular tube is at the bottom of the evaporation cylinder and the cold circular tube is at the top of the evaporation cylinder.

[0019] As a preferred technical solution of this application, there is a gap between the cleaning plate and the heat exchange tube, and they do not directly contact each other.

[0020] (III) Beneficial Effects

[0021] This invention collects solar thermal energy through a heat pipe and concentrates the heat in a heat-conducting medium. The heat is then transferred between the heat exchanger and the wastewater in the evaporation tank through the heat-conducting medium, heating the wastewater and turning the liquid water in the wastewater into water vapor. This process concentrates harmful substances and wastewater, reducing energy waste caused by electric heating or combustion heating, making it more environmentally friendly and cost-effective.

[0022] This invention uses a motor to drive a cleaning plate to clean the scale adhering to the outer wall of the heat exchange tube, reducing the probability of reduced heat exchange efficiency due to scale. It also uses an electrode plate to electrolyze concentrated wastewater to recover precious metals such as silver and decompose cyanide, thereby reducing pollutant emissions, lowering costs, and making the invention more environmentally friendly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is an exploded view of the device used in this application;

[0025] Figure 3 This is a structural diagram of the solar collector assembly used in this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the evaporation component and the heat convection component of this utility model;

[0027] Figure 5 This is a partial cross-sectional view of the evaporation assembly;

[0028] Figure 6 for Figure 4 A partial sectional view;

[0029] Figure 7 This is a structural diagram of the heat convection assembly;

[0030] Figure 8 This is a structural diagram of the electrolysis assembly used in this application.

[0031] In the diagram: 1. Outer frame; 2. Heat collection assembly; 21. Heat pipe; 22. Heat manifold; 23. Hot flow pipe; 24. Cold manifold; 25. Cold flow pipe; 26. Heat pump; 3. Evaporation assembly; 31. Evaporation cylinder; 32. Sewage pipe; 33. Drain pipe; 34. Pipe hole; 35. Steam pipe; 36. Motor; 37. Lead screw; 38. Rod sleeve; 39. Pull rod; 310. Cleaning plate; 311. Water valve; 4. Heat convection assembly; 41. Heat exchange pipe; 42. Cold round pipe; 43. Hot round pipe; 44. Pump pipe; 5. Electrolysis assembly; 51. Electrolysis chamber; 52. Electrode plate; 53. Flat pipe. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] This utility model provides waste liquid treatment equipment, such as... Figure 1-8 As shown, the system includes an outer frame 1 and a heat collection assembly 2, which is fixedly connected to the outer frame 1. The heat collection assembly 2 includes a heat pipe 21 fixedly connected to the outer frame 1, a heat manifold 22 fixedly connected to one end of the heat pipe 21, a heat flow pipe 23 fixedly connected to the middle of the heat manifold 22, a cold manifold 24 fixedly connected to the other end of the heat pipe 21, a cold flow pipe 25 fixedly connected to the end of the cold manifold 24, and a heat pump 26 fixedly connected to the end of the cold flow pipe 25. An evaporation assembly 3 is installed inside the outer frame 1. A heat convection assembly 4 is fixedly connected to the evaporation assembly 3. An electrolysis assembly 5 is fixedly connected to the outside of the evaporation assembly 3.

[0034] Wastewater from electroplating silver jewelry contains various harmful substances, including silver ions, other heavy metals, cyanide, etc. Since the relative content of harmful elements is not high, the wastewater from electroplating must be concentrated to enrich the harmful elements before further treatment. Common concentration methods are semi-permeable membranes or heating concentration. However, semi-permeable membrane concentration is often accompanied by a decrease in the permeability of the semi-permeable membrane due to long-term use. At this time, the semi-permeable membrane needs to be replaced. For large-scale wastewater treatment enterprises, the high price of semi-permeable membranes will seriously increase costs. Therefore, heating evaporation concentration is more suitable for large-scale treatment.

[0035] Because the concentration of harmful elements in wastewater is low, using electric heating or coal combustion heating would consume a lot of resources, which is not in line with the concept of environmental protection and cost control. The heat collection component 2 on the outer frame 1 absorbs solar energy through the heat pipe 21 and heats the heat transfer medium therein. As the heat transfer medium is heated, its density decreases and it moves upward, thus collecting in the heat manifold 22. Under the action of the circulating pressure of the heat pump 26, it flows into the heat flow pipe 23. After heat exchange is completed by the heat convection component 4, the cooled heat transfer medium collects in the cold manifold 24 under the action of the circulating pressure of the heat pump 26 and flows into the cold flow pipe 25, and then enters the heat pipe 21 to continue to be heated.

[0036] The solar collector 2 uses solar energy to heat the heat transfer medium, which heats the electroplating wastewater in the evaporation 3, thereby causing it to evaporate and concentrate. In large-scale use, it has a significant cost reduction effect, and at the same time, it does not consume electricity or coal, making it more environmentally friendly.

[0037] like Figure 4-6 The evaporation assembly 3 includes an evaporation cylinder 31 installed inside the outer frame 1, a sewage pipe 32 fixedly connected to the evaporation cylinder 31, a drain pipe 33 fixedly connected to the evaporation cylinder 31, a pipe hole 34 opened on the evaporation cylinder 31, a steam pipe 35 fixedly connected to the top of the evaporation cylinder 31, a motor 36 fixedly connected to the top of the evaporation cylinder 31, a lead screw 37 fixedly connected to the end of the motor 36, a rod sleeve 38 slidably connected to the lead screw 37, a pull rod 39 fixedly connected to the rod sleeve 38, a cleaning plate 310 fixedly connected to the pull rod 39, and a water valve 311 fixedly connected to the drain pipe 33.

[0038] Evaporation component 3 is installed inside the outer frame 1, which shields it from sunlight to prevent accelerated aging of evaporation component 3 under ultraviolet light. Evaporation cylinder 31 in evaporation component 3 is used to hold electroplating wastewater. After the electroplating wastewater flows in through wastewater pipe 32, it is heated by heat exchange component in evaporation cylinder 31. The water in it is evaporated and discharged from steam pipe 35. Harmful substances are enriched. The concentrated wastewater flows through drain pipe 33 to electrolysis component 5 for electrolytic purification.

[0039] like Figure 4-7 The heat convection assembly 4 includes a heat exchange tube 41 fixedly connected to the tube hole 34, a cold round tube 42 fixedly connected to one end of the heat exchange tube 41, a hot round tube 43 fixedly connected to the other end of the heat exchange tube 41, and a pump tube 44 fixedly connected to the cold round tube 42.

[0040] The heat exchange tubes 41 in the heat convection assembly 4 are fixedly installed on the pipe hole 34. The high-temperature medium from the heat flow tube 23 is distributed to each heat exchange tube 41 in the hot circular tube 43. The heat in the heat exchange tubes 41 is transferred to the sewage in the evaporation cylinder 31 to heat the sewage. Since the hot circular tube 43 is at the bottom of the evaporation cylinder 31, after the high-temperature medium enters, it gradually moves upward from the bottom of the evaporation cylinder 31, which prolongs the heat transfer time and increases the efficiency of heat exchange. After the heat exchange is completed, the low-temperature medium gradually flows to the cold circular tube 42 under the circulation of the heat pump 26, and finally enters the pump tube 44, flows into the heat pump 26, and is lifted by the heat pump 26 to the cold manifold 24.

[0041] When heat is transferred through the heat exchange tube 41, due to the high temperature and large surface area of ​​the heat exchange tube 41, harmful substances from the sewage will adhere to the surface of the heat exchange tube 41 and gradually condense into scale that is insoluble in water. At this time, the motor 36 drives the lead screw 37 to move, the lead screw 37 drives the sleeve 38 to move, lifting the pull rod 39. The pull rod 39 drives the cleaning plate 310 to move up and down, cleaning the scale on the outer surface of the heat exchange tube 41 and preventing the scale from accumulating and causing poor heat transfer effect. Since there is a small gap between the cleaning plate 310 and the heat exchange tube 41, the movement of the cleaning plate 310 will not affect the placement of the heat exchange tube 41.

[0042] like Figure 8 The electrolysis assembly 5 includes an electrolysis tank 51 fixedly connected to the end of the drain pipe 33, an electrode plate 52 fixedly connected to the electrolysis tank 51, and a flat tube 53 fixedly connected to the electrolysis tank 51.

[0043] The wastewater, which is evaporated and concentrated in the evaporation tank 31, enters the electrolysis tank 51 through the drain pipe 33 of the water valve 311. At this time, the harmful substances in the wastewater are enriched in large quantities. The electrolysis method is highly efficient, energy-saving, and produces little pollution. The current flows through the electrode plate 52 through the wastewater, causing the silver ions in it to be reduced to elemental silver at the cathode. After a long period of electrolysis, the silver ions are enriched around the cathode and can be recycled, saving costs.

[0044] Near the anode, cyanide ions gain electrons to generate carbon dioxide and nitrogen, making emissions safer and pollution-free, meeting the emission standards of large enterprises; the sludge produced is easier to clean out through the flat pipe 53.

[0045] During use, solar thermal energy is collected through heat pipe 21 and the heat is enriched in the heat transfer medium. The heat is then transferred to the wastewater in the evaporation cylinder 31 through the heat exchange pipe 41, heating the wastewater and turning the liquid water in the wastewater into water vapor. This process enriches harmful substances and concentrates the wastewater, which helps reduce energy waste caused by electric heating or combustion heating, making it more environmentally friendly and cost-effective.

[0046] The cleaning plate 310 driven by the motor 36 cleans the scale adhering to the outer wall of the heat exchange tube 41, reducing the probability of reduced heat exchange efficiency due to scale. The concentrated wastewater is electrolyzed by the electrode plate 52 to recover precious metals such as silver and decompose cyanide, thereby reducing pollutant emissions, lowering costs, and making the process more environmentally friendly.

[0047] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An environmentally friendly silver jewelry electroplating waste liquid recycling treatment equipment, including an outer frame (1), characterized in that: It also includes a heat collection component (2), which is fixedly connected to the outer frame (1); The heat collection assembly (2) includes a heat pipe (21) fixedly connected to the outer frame (1), a heat manifold (22) fixedly connected to one end of the heat pipe (21), a heat flow pipe (23) fixedly connected to the middle of the heat manifold (22), a cold manifold (24) fixedly connected to the other end of the heat pipe (21), a cold flow pipe (25) fixedly connected to the end of the cold manifold (24), and a heat pump (26) fixedly connected to the end of the cold flow pipe (25). An evaporation assembly (3) is disposed inside the outer frame (1); The heat convection component (4) is fixedly connected to the evaporation component (3); The electrolysis component (5) is fixedly connected to the outside of the evaporation component (3).

2. The environmentally friendly silver jewelry electroplating waste liquid recycling treatment equipment according to claim 1, characterized in that: The evaporation assembly (3) includes an evaporation cylinder (31) disposed inside the outer frame (1), a sewage pipe (32) fixedly connected to the evaporation cylinder (31), a drain pipe (33) fixedly connected to the evaporation cylinder (31), a pipe hole (34) opened on the evaporation cylinder (31), a steam pipe (35) fixedly connected to the top of the evaporation cylinder (31), a motor (36) fixedly connected to the top of the evaporation cylinder (31), a lead screw (37) fixedly connected to the end of the motor (36), a rod sleeve (38) slidably connected to the lead screw (37), a pull rod (39) fixedly connected to the rod sleeve (38), a cleaning plate (310) fixedly connected to the pull rod (39), and a water valve (311) fixedly connected to the drain pipe (33).

3. The environmentally friendly silver jewelry electroplating waste liquid recycling treatment equipment according to claim 2, characterized in that: The heat convection assembly (4) includes a heat exchange tube (41) fixedly connected to the tube hole (34), a cold round tube (42) fixedly connected to one end of the heat exchange tube (41), a hot round tube (43) fixedly connected to the other end of the heat exchange tube (41), and a pump tube (44) fixedly connected to the cold round tube (42).

4. The environmentally friendly silver jewelry electroplating waste liquid recycling treatment equipment according to claim 3, characterized in that: The electrolysis assembly (5) includes an electrolysis tank (51) fixedly connected to the end of the drain pipe (33), an electrode plate (52) fixedly connected to the electrolysis tank (51), and a flat tube (53) fixedly connected to the electrolysis tank (51).

5. The environmentally friendly silver jewelry electroplating waste liquid recycling treatment equipment according to claim 3, characterized in that: The hot tube (43) is at the bottom of the evaporation cylinder (31), and the cold tube (42) is at the top of the evaporation cylinder (31).

6. The environmentally friendly silver jewelry electroplating waste liquid recycling treatment equipment according to claim 3, characterized in that: There is a gap between the cleaning plate (310) and the heat exchange tube (41), and they do not contact each other directly.

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