Gold purification device
By designing a gold purification device, using multiple independent feeding channels and exhaust modules to process toxic gases, the safety hazards and purity control problems in gold wet purification technology are solved, and a more efficient and safer gold purification process is achieved. .
Patent Information
- Application Number
- CN202420924033.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing gold wet purification technology has safety risks, the health of the operators is damaged, and it is difficult to control the purity of gold.
A gold purification device was designed, including a reactor, a feeding module, an exhaust module and a stirring module. The amount of medicine is controlled through multiple independent solid-liquid feeding channels, and the exhaust module is used to treat toxic gases to reduce Spilling contamination, and replacing manual stirring through a stirring module to improve safety and automation.
It effectively reduces health damage to operators, improves safety performance, simplifies the device structure, reduces costs, and improves the control accuracy of gold purity.
Smart Images
Figure CN222226496U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gold wet purification, in particular to a gold purification device. Background Art
[0002] Gold is one of the rare metals and is widely used in jewelry, finance, medical treatment, aerospace and other fields. With the development of the industry, the requirement for gold purity has increased from 99.9% to 99.99%, and the production of high-purity gold has become a research hotspot. The refining of gold mainly includes four processes: chlorination, chemical, electrolysis and extraction. Currently, the chemical purification method is the most widely used gold refining method in the industrial field.
[0003] The chemical purification method is to dissolve gold containing impurities in a chemical solvent, separate the gold from the impurities through various chemical reactions and separation techniques, and obtain a high-purity finished product. On the one hand, the aqua regia added in the chemical wet purification is extremely corrosive, and there are great safety hazards in the operation; on the other hand, purification requires manual participation in stirring, and the nitrogen oxide gas produced by the reaction of aqua regia with metals is harmful to health. Long-term contact will cause respiratory damage. Manual participation is not only costly, but also difficult to control the purity of gold. Utility Model Content
[0004] To this end, the technical problem to be solved by the utility model is to overcome the technical difficulties of the prior art in wet gold purification, which has great potential safety hazards, and to provide a gold purification device that reduces damage to the health of operators and has good safety performance.
[0005] In order to solve the above technical problems, the utility model provides a gold purification device, which comprises:
[0006] A reactor body, the top of which is open, and the interior of which provides a containing space for a purification reaction;
[0007] A kettle cover, which is used to close the opening of the reactor body;
[0008] A feeding module is fixed to a side surface of the kettle cover away from the accommodating space, and the feeding module at least comprises a first liquid inlet channel and a second liquid inlet channel separated from each other; the first liquid inlet channel is connected to the accommodating space through a first feeding hole provided through the kettle cover, and is used to add hydrochloric acid to the accommodating space; the second liquid inlet channel is connected to the accommodating space through a second feeding hole provided through the kettle cover, and is used to add nitric acid to the accommodating space; the volume of hydrochloric acid introduced into the first liquid inlet channel is configured to be three times that of nitric acid introduced into the second liquid inlet channel;
[0009] The exhaust module is fixed to the kettle cover and is located on the same side as the feeding module; the exhaust module is connected to the accommodating space through the exhaust hole of the kettle cover.
[0010] In one embodiment of the utility model, the feeding module also includes a solid feeding channel, which adds gold-containing solids to the accommodating space through the through hole of the kettle cover; the feeding module also includes a third liquid inlet channel, which is connected to the accommodating space through a third feed hole through-through arranged on the kettle cover, and is used to add a reducing agent to the accommodating space.
[0011] In one embodiment of the present invention, the aperture of the through hole is larger than the apertures of the first feed hole, the second feed hole and the third feed hole.
[0012] In one embodiment of the present invention, the feeding module further comprises four sealing covers, and the four sealing covers are respectively used to seal one end of the solid feeding channel, the first liquid inlet channel, the second liquid inlet channel and the third liquid inlet channel away from the kettle cover.
[0013] In one embodiment of the present invention, a tray is further included. The tray is located inside the reactor body and is configured to be movable along the depth direction of the reactor body. The surface of the tray is coated with a filtrate membrane layer.
[0014] In one embodiment of the present invention, the filtrate membrane layer is configured as a PTFE membrane.
[0015] In one embodiment of the utility model, a stirring module is further included, one end of which is located in the accommodating space and is provided with stirring blades, and the other end of the stirring module is fixed to the kettle cover; the end of the stirring module fixed to the kettle cover is externally connected to a control unit.
[0016] In one embodiment of the utility model, the exhaust module includes an exhaust pipe and an air valve; one end of the exhaust pipe is connected to the exhaust hole, and the other end of the exhaust pipe is connected to the atmosphere. The exhaust pipe is filled with activated carbon, and the air valve is located between the activated carbon and the exhaust hole for controlling the opening and closing of the exhaust pipe.
[0017] In one embodiment of the utility model, a drain port is further provided at the bottom of the reactor body, a drain valve is provided at the drain port, and the drain port is externally connected to a drain pipe.
[0018] In an embodiment of the present invention, the material of the reactor body is set to be glass.
[0019] The above technical solution of the utility model has the following beneficial effects compared with the prior art:
[0020] The utility model discloses a gold purification device, which is provided with a plurality of mutually independent solid-liquid feeding channels, so as to facilitate the control of the dosage of drugs, avoid harming the health of operators during feeding, and facilitate the control of the reaction process; the exhaust module is used to post-process toxic and harmful gases, so as to avoid the overflow gas from polluting the operating environment; the gold purification device has a simple structure, occupies a small space, and has strong scalability. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein:
[0022] Figure 1 This is a structural schematic diagram of a gold purification device in a preferred embodiment of the utility model;
[0023] Figure 2 It is a top view of the kettle cover of the gold purification device in the preferred embodiment of the utility model.
[0024] Explanation of the reference numerals in the drawings in the specification: 1. Reactor body; 11. Accommodating space; 2. Reactor cover; 21. First feed hole; 22. Second feed hole; 23. Third feed hole; 24. Through hole; 25. Exhaust hole; 31. First liquid inlet channel; 32. Second liquid inlet channel; 33. Third liquid inlet channel; 4. Solid feeding channel; 5. Sealing cover; 6. Tray; 7. Stirring module; 71. Stirring blade; 8. Exhaust pipe; 81. Activated carbon; 9. Drain port; 91. Drain valve. DETAILED DESCRIPTION
[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.
[0026] Example
[0027] Reference Figure 1-2 As shown, the utility model provides a gold purification device, which includes a reactor body 1, a reactor cover 2, a feeding module and an exhaust module; the gold purification reaction is carried out inside the reactor body 1, the reactor is used to provide a containing space 11 for the purification reaction, the top of the reactor body 1 is open, and the reactor cover 2 is used to close the opening of the reactor body 1 to form a closed environment inside. The utility model uses a feeding module to carry out feeding in different areas and channels, reduces the safety hazard of aqua regia to operators before feeding, and reduces the pollution of the nitrogen oxide gas generated by the reaction to the operating environment through reasonable exhaust and post-treatment, so that the safety performance of the purification equipment is better.
[0028] Specifically, refer to Figure 1 As shown, the feeding module is fixed to the side surface of the kettle cover 2 away from the accommodating space 11; the feeding module at least includes a first liquid inlet channel 31 and a second liquid inlet channel 32 separated from each other; the first liquid inlet channel 31 is connected to the accommodating space 11 through the first feed hole 21 set through the kettle cover 2, and is used to add hydrochloric acid to the accommodating space 11; the second liquid inlet channel 32 is connected to the accommodating space 11 through the second feed hole 22 set through the kettle cover 2, and is used to add nitric acid to the accommodating space 11; the volume of hydrochloric acid introduced into the first liquid inlet channel 31 is configured to be three times the volume of nitric acid introduced into the second liquid inlet channel 32; in a preferred embodiment of the utility model, hydrochloric acid and nitric acid are added into the reactor in proportion to avoid the excessive corrosiveness of the pre-mixed aqua regia posing a threat to the health of the operator.
[0029] Next, the loading module also includes a third liquid inlet channel 33, and the third liquid inlet channel 33 is connected to the accommodating space 11 through the third feed hole 23 set through the kettle cover 2, and is used to add a reducing agent to the accommodating space 11; the third liquid inlet channel 33 is independent of the first liquid inlet channel 31 and the second liquid inlet channel 32, so that the mixing and purification reactions of the reaction reagents are completely carried out inside the reactor body 1, avoiding safety accidents outside the reactor.
[0030] Next, in some embodiments, the gold-containing solid to be purified can be placed in the reactor in advance; in some embodiments, the feeding module further includes a solid feeding channel 4, and the solid feeding channel 4 adds the gold-containing solid to the accommodating space 11 through the through hole 24 of the reactor cover 2; Figure 2 As shown, the aperture of the through hole 24 is larger than the aperture of the first feed hole 21, the second feed hole 22 and the third feed hole 23, which is convenient for solid feeding and controlling the aperture of liquid feed at the same time to avoid liquid splashing; the independent feeding channel can effectively control the dosage of medicines, make full use of resources, and effectively avoid unnecessary reactions and impurity pollution. By replenishing the gold-containing solid through the solid feeding channel 4, the purification of the reactor body 1 can be carried out continuously without opening the reactor cover 2. On the one hand, the purification efficiency is improved, and on the other hand, the reactor cover 2 does not need to be opened when changing the material reaction, and the gas in the reactor overflows less, which is less harmful to the human body.
[0031] It should be noted that in the preferred embodiment of the utility model, the material of the reactor body is set to glass; glass has good chemical stability, can resist strong acid corrosion, and has good hardness and high transparency. The liquid and solid materials participating in the reaction can be directly observed through the reactor when they are loaded, which is convenient for timely material replenishment and control of the reaction process.
[0032] Furthermore, in order to maintain the airtightness of the accommodating space 11, a first seal is provided at the opening of the kettle cover 2 and the reactor body 1, and the first seal can be set as a sealing ring; the feeding module also includes a second seal, and the second seal is set as four sealing covers 5, and the four sealing covers 5 are respectively used to seal the solid feeding channel 4, the first liquid inlet channel 31, the second liquid inlet channel 32 and the third liquid inlet channel 33 away from one end of the kettle cover 2; the second seal is opened during feeding, and each feeding channel is sealed by the second seal during reaction in the kettle.
[0033] Specifically, refer to Figure 1 As shown, a tray 6 is also provided inside the reactor body 1, and the surface of the tray 6 is coated with a filtrate membrane layer for achieving solid-liquid separation; a drain port 9 is also provided at the bottom of the reactor body 1, and a drain valve 91 is provided at the drain port 9. The drain port 9 is externally connected to a drain pipe for draining the liquid in the reactor after solid-liquid separation.
[0034] Furthermore, in some embodiments, the side of the tray 6 is hung on the inner wall of the reactor body 1; after the gold purification reaction is completed, the liquid can pass through the filtrate membrane layer and remain at the bottom of the reactor, and the purified solid remains on the surface of the tray 6; the filtrate membrane layer is set to be a PTFE membrane; PTFE membrane is a microporous film processed from polytetrafluoroethylene to achieve solid-liquid separation.
[0035] Furthermore, in some embodiments, the tray 6 is configured to be able to move along the depth direction of the reactor body 1, and the inner wall of the reactor body 1 is provided with a driving member to connect and drive the tray 6 to move; after the gold purification reaction is completed, the tray 6 is driven to be lifted above the liquid level in the reactor, and the liquid is discharged through the drain port 9 after separation by the PTFE membrane. One end of the drain pipe is connected to the drain port 9, and the other end is connected to an external liquid post-processing container for discharge. The drain valve 91 is used to control the on-off of the drain pipe.
[0036] Specifically, refer to Figure 1 As shown, the gold purification device also includes an exhaust module, which is fixed to the kettle cover 2 and located on the same side of the loading module; the exhaust module is connected to the accommodating space 11 through the exhaust hole 25 of the kettle cover 2; the exhaust module is used to treat the nitrogen oxide gas generated by the reaction to avoid the overflow of toxic and harmful gases.
[0037] Next, the exhaust module includes an exhaust pipe 8 and an air valve; one end of the exhaust pipe 8 is connected to the exhaust hole 25, and the other end of the exhaust pipe 8 is connected to the atmosphere. The exhaust pipe 8 is filled with a filter medium, and the air valve is located between the filter medium and the exhaust hole 25 to control the opening and closing of the exhaust pipe 8; in a preferred embodiment of the utility model, the filter medium is set to activated carbon 81.
[0038] Specifically, refer to Figure 1 As shown, the gold purification device further includes a stirring module 7, one end of which is located in the accommodating space 11 and is provided with a stirring blade 71, and the other end of which is fixed to the kettle cover 2; the stirring module 7 is fixed to the kettle cover 2 and is connected to an external control unit to control the blade speed, thereby controlling the reaction speed. The stirring module 7 is provided to replace manual stirring, which reduces the safety hazard of the operator when the reaction occurs, saves labor costs, and makes the device more automated.
[0039] The working principle of the gold purification device described in the utility model is as follows:
[0040] Before operation, the reactor is sealed, a certain amount of gold-containing solid is added through the solid feeding channel 4 of the reactor cover 2, and then hydrochloric acid and nitric acid with a volume ratio of 3:1 are added into the reactor through the first liquid inlet channel 31 and the second liquid inlet channel 32, so that the gold-containing solid is completely immersed in the liquid. The stirring module 7 is started, and the reaction rate is increased by rotating the stirring blade 71. The reaction in the reactor is observed through the reactor wall. If the reaction is not complete, hydrochloric acid and nitric acid with a volume ratio of 3:1 are added in small amounts and multiple times through the first liquid inlet channel 31 and the second liquid inlet channel 32 until the solid is completely dissolved and the reaction is complete; the nitrogen oxide gas generated in the process is discharged after being treated by the exhaust module.
[0041] The reducing agent sodium sulfite is added through the third liquid inlet channel 33 for the reduction of chloroauric acid, and the generated gold particles will be deposited on the tray 6 coated with the PTFE membrane; since the solution can quickly pass through the PTFE membrane, the tray 6 is driven to move above the liquid surface to achieve solid-liquid separation. After the gold particles are transferred, the tray 6 is moved into the solution for secondary reduction, and the above steps are repeated. Finally, the solution is transferred to an external container through the drain valve and reused after treatment.
[0042] The gold purification device is efficient, environmentally friendly and occupies a small area; high-purity gold extraction can be achieved by optimizing the structure of the equipment and controlling reaction parameters; the gold purification device integrating feeding, reaction and post-processing has broad application prospects in gold mining and the gold field.
[0043] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.
Claims
1. A gold purification device, characterized in that: include, A reactor body, the top of which is open, and the interior of which provides a containing space for a purification reaction; A kettle cover, which is used to close the opening of the reactor body; A feeding module is fixed to a side surface of the kettle cover away from the accommodating space, and the feeding module at least comprises a first liquid inlet channel and a second liquid inlet channel separated from each other; the first liquid inlet channel is connected to the accommodating space through a first feeding hole provided through the kettle cover, and is used to add hydrochloric acid to the accommodating space; The second liquid inlet channel is connected to the accommodating space through a second feed hole provided through the kettle cover, and is used to add nitric acid to the accommodating space; the volume of hydrochloric acid introduced into the first liquid inlet channel is configured to be three times the volume of nitric acid introduced into the second liquid inlet channel; The exhaust module is fixed to the kettle cover and is located on the same side as the feeding module; the exhaust module is connected to the accommodating space through the exhaust hole of the kettle cover.
2. The gold purification device according to claim 1, characterized in that: The feeding module also includes a solid feeding channel, which adds gold-containing solids to the accommodating space through the through hole of the kettle cover; the feeding module also includes a third liquid inlet channel, which is connected to the accommodating space through a third feed hole through-through arranged on the kettle cover, and is used to add a reducing agent to the accommodating space.
3. The gold purification device according to claim 2, characterized in that: The aperture of the through hole is larger than the apertures of the first feed hole, the second feed hole and the third feed hole.
4. The gold purification device according to claim 2, characterized in that: The feeding module also includes four sealing covers, and the four sealing covers are respectively used to seal the solid feeding channel, the first liquid inlet channel, the second liquid inlet channel and the third liquid inlet channel at one end away from the kettle cover.
5. The gold purification device according to claim 1, characterized in that: It also includes a tray, which is located inside the reactor body and is configured to be able to move along the depth direction of the reactor body; the surface of the tray is coated with a filtrate membrane layer.
6. The gold purification device according to claim 5, characterized in that: The filtrate membrane layer is configured as a PTFE membrane.
7. The gold purification device according to claim 1, characterized in that: It also includes a stirring module, one end of which is located in the accommodating space and is provided with a stirring blade, and the other end of which is fixed to the kettle cover; The stirring module is fixed to one end of the kettle cover and is externally connected to a control unit.
8. The gold purification device according to claim 1, characterized in that: The exhaust module includes an exhaust pipe and an air valve; one end of the exhaust pipe is connected to the exhaust hole, and the other end of the exhaust pipe is connected to the atmosphere. The exhaust pipe is filled with activated carbon, and the air valve is located between the activated carbon and the exhaust hole to control the opening and closing of the exhaust pipe.
9. The gold purification device according to claim 1, characterized in that: The bottom of the reactor body is also provided with a liquid discharge port, a liquid discharge valve is provided at the liquid discharge port, and the liquid discharge port is externally connected to a liquid discharge pipe.
10. The gold purification device according to claim 1, characterized in that: The material of the reactor body is set to be glass.