Novel high-temperature and high-pressure desorption electrolysis device, equipment and system

Abstract

The utility model provides a novel high-temperature high-pressure desorption electrolysis device, equipment and system. The novel high-temperature high-pressure desorption electrolysis device comprises desorption equipment, a first filter, an electrolytic bath and a second filter, wherein the desorption equipment is a closed container of which the bottom is provided with a desorption liquid inlet and the top is provided with a feeding hole; desorption liquid enters the desorption equipment through a desorption liquid inlet to obtain desorption pregnant solution and degolding lean carbon, the degolding lean carbon is discharged from the desorption equipment through a lean carbon outlet formed in the desorption equipment, and the desorption pregnant solution enters the first filter through a filtering pipeline; the first filter is used for filtering the desorption pregnant solution to obtain a primary desorption pregnant solution; the electrolytic bath is used for electrolyzing the primary desorption pregnant solution, primary gold mud is reduced to obtain barren liquor, the primary gold mud enters a second filter based on a gold mud filtering pipeline, and the barren liquor enters desorption equipment through a barren liquor pipeline communicated with the bottom of the second filter for recycling; and the second filter is used for filtering the primary gold mud to obtain pure gold mud.

Description

Technical Field

[0001] The utility model relates to the field of metallurgical devices, and particularly relates to a novel high-temperature and high-pressure desorption electrolysis device, equipment and system. Background Art

[0002] Metallurgical technology refers to the technology of extracting metals or metal compounds from ores or other raw materials and preparing metals or alloys through processes such as smelting, refining, and casting. In the 20th century, significant breakthroughs were made in metallurgical technology, including the invention of the oxygen top-blown converter steelmaking method, which greatly improved the production quantity and quality of steel. At the same time, the development of materials science provided a theoretical basis for metallurgical technology and promoted the development of new materials.

[0003] In the metallurgical process, metallurgical equipment plays a crucial role, and the desorption device is an important part of the metallurgical device. Its main task is to desorb gold from the gold-loaded carbon under specific process conditions and transfer it to the desorption solution. The electrolysis device is the key equipment for further refining the gold in the desorption solution. During the electrolysis process, through the action of an electric field, gold ions are reduced to metallic gold on the cathode.

[0004] However, in existing desorption and electrolysis equipment, there are still problems in the metallurgical process, such as the extraction of metals not meeting the requirements due to impure filtration, slow desorption process, low desorption efficiency, resulting in waste of energy consumption. In addition, due to the low level of automation, manual operation will reduce the reliability of equipment operation. Summary of the Utility Model

[0005] The purpose of this application is to provide an anti-breakthrough charging tank, anti-breakthrough container, and anti-breakthrough charging system to solve or alleviate the problems existing in the above-mentioned prior art.

[0006] To achieve the above object, the present application provides the following technical solution: a novel high-temperature and high-pressure desorption electrolysis device, comprising: a desorption device 1, a first filter 2, an electrolytic cell 3, and a second filter 4. The desorption device 1 is connected to the first filter 2 through a filtering pipeline, the first filter 2 is connected to the electrolytic cell 3 through a rich liquid pipeline, and the electrolytic cell 3 is connected to the second filter 4 through the gold mud filtering pipeline; the desorption device 1 is a closed container with a desorption liquid inlet provided at the bottom and a feed inlet 5 provided at the top; the desorption liquid enters the desorption device 1 through the desorption liquid inlet to desorb the gold-loaded carbon entering the desorption device 1 through the feed inlet 5, obtaining desorbed rich liquid and gold-depleted carbon. The gold-depleted carbon is discharged from the desorption device 1 through the poor carbon outlet provided on the desorption device 1, and the desorbed rich liquid enters the first filter 2 through the filtering pipeline based on the internal pressure of the desorption device 1; the first filter 2 is used to filter the desorbed rich liquid to obtain primary desorbed rich liquid, and the primary desorbed rich liquid enters the electrolytic cell 3 through the rich liquid pipeline; the electrolytic cell 3 is used to electrolyze the primary desorbed rich liquid to reduce primary gold mud and obtain poor liquid. The primary gold mud enters the second filter 4 through the gold mud filtering pipeline, and the poor liquid enters the desorption device 1 through a poor liquid pipeline communicating with the bottom of the electrolytic cell 3 for recycling; the second filter 4 is used to filter the primary gold mud to obtain pure gold mud.

[0007] Optionally, the desorption device 1 includes: a desorption column 11 and a desorption liquid injection device 12; the desorption column 11 is a closed container with the desorption liquid inlet provided at the bottom, the feed inlet 5 provided at the top, and the poor carbon outlet provided on the wall; the desorption liquid injection device 12 is connected to the desorption liquid inlet communicating pipe provided at the bottom of the desorption device 1 through a desorption liquid pipeline, and based on a circulation pump, pumps the desorption liquid into the desorption column 11; the desorption liquid desorbs the gold-loaded carbon entering the desorption column 11 through the feed inlet 5.

[0008] Optionally, the desorbing liquid injection device 12 includes an electric heater 121 and a desorbing liquid tank 122. The electric heater 121 is a sealed container with a liquid inlet and a liquid outlet on its outer wall. The electric heater 121 is connected to the desorbing liquid tank 122 through a liquid inlet pipe. One end of the liquid inlet pipe communicates with the desorbing liquid tank 122 containing the desorbing liquid inside, and the other end communicates with the liquid inlet. The liquid outlet is connected to the bottom of the desorbing device 1 through the desorbing liquid pipe. Under the action of the circulating pump, the desorbing liquid flows out of the desorbing liquid tank 122 and is pumped into the electric heater 121 through the liquid inlet pipe to heat the desorbing liquid based on the electric heater 121, accelerating the desorbing rate. The lean liquid enters the desorbing liquid tank 122 through a lean liquid pipe connected to the bottom of the electrolytic cell 3 for recycling.

[0009] Optionally, a flange port 51 and a solenoid valve 52 are provided on the feed port 5. The flange port 51 is used to cooperate with the desorbing device for material transportation and discharge. The material transportation and discharge include transporting clear water, transporting the desorbed precious liquid, and discharging the gas from the desorbing column 11. The solenoid valve 52 is used to transport the gold-loaded carbon into the desorbing device.

[0010] Optionally, a container state detection sensor is provided in the solenoid valve 52 to detect the state of the gold-loaded carbon in the desorbing column 11. When the gold-loaded carbon is lower than the set safety height in the desorbing column 11, the solenoid valve 52 opens to transport the gold-loaded carbon into the desorbing column 11. When the gold-loaded carbon exceeds the set safety height in the desorbing column 11, the solenoid valve 52 closes to stop transporting the gold-loaded carbon into the desorbing column 11.

[0011] Optionally, an observation port is provided at the lower part of the desorbing column 11 to observe the state of the desorbing liquid desorbing the gold-loaded carbon.

[0012] Optionally, the new high-temperature and high-pressure desorbing and electrolyzing device further includes a gold-loaded carbon storage and transportation tank 6. The gold-loaded carbon is accommodated in the gold-loaded carbon storage and transportation tank 6 and enters the desorbing device 1 through the feed port 5 via a feed pipe for desorption.

[0013] Optionally, the new high-temperature and high-pressure desorbing and electrolyzing device further includes a lean carbon storage and transportation tank 7. The lean carbon storage and transportation tank 7 accommodates the de-gold lean carbon discharged from the desorbing column 11 through the lean carbon outlet.

[0014] The present application also provides a novel high-temperature and high-pressure desorption electrolysis device, including: a desorption device, a first filter, an electrolytic cell, and a second filter. The desorption device is connected to the first filter through a filtration pipeline. The first filter is connected to the electrolytic cell through a pregnant solution pipeline. The electrolytic cell is connected to the second filter through the gold mud filtration pipeline;

[0015] The desorption device is a closed container with a desorption liquid inlet provided at the bottom and a feed inlet provided at the top;

[0016] The desorption liquid enters the desorption device through the desorption liquid inlet to desorb the ore entering the desorption device through the feed inlet, obtaining desorbed pregnant solution and demineralized lean carbon,

[0017] The demineralized lean carbon is discharged from the desorption device through a lean carbon outlet provided on the desorption device. The desorbed pregnant solution enters the first filter through the filtration pipeline based on the internal pressure of the desorption device;

[0018] The first filter is used to filter the desorbed pregnant solution to obtain primary desorbed pregnant solution. The primary desorbed pregnant solution enters the electrolytic cell through the pregnant solution pipeline;

[0019] The electrolytic cell is used to electrolyze the primary desorbed pregnant solution to reduce primary slime and obtain lean solution. The primary slime enters the second filter (4) through the gold mud filtration pipeline. The lean solution enters the desorption device through a lean solution pipeline communicated with the bottom of the electrolytic cell for recycling;

[0020] The second filter is used to filter the primary slime to obtain pure slime.

[0021] The present application also provides a novel high-temperature and high-pressure desorption electrolysis system, which includes a novel high-temperature and high-pressure desorption electrolysis device according to any one of the present application.

[0022] The utility model provides a novel high-temperature and high-pressure desorption electrolysis device, equipment, and system. The novel high-temperature and high-pressure desorption electrolysis device includes a desorption device 1, a first filter 2, an electrolytic cell 3, and a second filter 4. The desorption device 1 is connected to the first filter 2 through a filtering pipeline. The first filter 2 is connected to the electrolytic cell 3 through a rich liquid pipeline. The electrolytic cell 3 is connected to the second filter 4 through a gold mud filtering pipeline. The desorption device 1 is a closed container with a desorption liquid inlet at the bottom and a feed inlet 5 at the top. The desorption liquid enters the desorption device 1 through the desorption liquid inlet to desorb the gold-loaded carbon entering the desorption device 1 through the feed inlet 5, obtaining desorbed rich liquid and gold-depleted carbon. The gold-depleted carbon is discharged from the desorption device 1 through a depleted carbon outlet provided on the desorption device 1. The desorbed rich liquid enters the first filter 2 through the filtering pipeline based on the internal pressure of the desorption device 1. The first filter 2 is used to filter the desorbed rich liquid to obtain primary desorbed rich liquid. The primary desorbed rich liquid enters the electrolytic cell 3 through the rich liquid pipeline. The electrolytic cell 3 is used to electrolyze the primary desorbed rich liquid to reduce primary gold mud and obtain depleted liquid. The primary gold mud enters the second filter 4 through the gold mud filtering pipeline. The depleted liquid enters the desorption device 1 through a depleted liquid pipeline connected to the bottom of the electrolytic cell 3 for recycling. The second filter 4 is used to filter the primary gold mud to obtain pure gold mud. In the utility model, the desorption device 1 in the device desorbs the gold-loaded carbon under high-temperature and high-pressure conditions, effectively improving the desorption efficiency of gold elements, thereby enhancing the efficiency of the entire extraction process. At the same time, the rapid electrolysis ability of the electrolytic cell 3 further shortens the extraction time and improves the production efficiency. In addition, through two-stage filtration, that is, the first filter 2 filters the desorbed rich liquid and the second filter 4 filters the primary gold mud, impurities can be effectively removed, ensuring a high purity of the finally obtained gold mud. At the same time, the content of harmful substances in the waste liquid is reduced, which is beneficial to environmental protection. Moreover, the depleted liquid generated during the electrolysis process is re-introduced into the desorption device 1, realizing the recycling of resources, not only saving production costs but also reducing the impact on the environment. In addition, the process design of the entire system is reasonable, and the connection between each device is simple and clear, making the operation process more convenient, reducing the operation difficulty, and facilitating equipment maintenance and repair. Not only that, through precise control of the high-temperature and high-pressure desorption conditions and electrolysis conditions, the stability of the entire system operation can be ensured, reducing production fluctuations caused by changes in operating conditions. Finally, due to the improvement of extraction efficiency and purity, as well as the reduction of production costs and waste liquid treatment costs, this novel device has obvious economic advantages. Description of the Drawings

[0023] The accompanying drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments and descriptions thereof of this application are used to explain this application and do not constitute an improper limitation to this application. Among them:

[0024] Figure 1 is a top view of a novel high-temperature and high-pressure desorption electrolysis device according to an embodiment of this application;

[0025] Figure 2 is Figure 1 a sectional view taken along line A-A of a novel high-temperature and high-pressure desorption electrolysis device shown;

[0026] Figure 3 is Figure 1 a sectional view taken along line B-B of a novel high-temperature and high-pressure desorption electrolysis device shown. Detailed implementation manners

[0027] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present application rather than a limitation thereof. In fact, those skilled in the art will clearly understand that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. Therefore, it is desirable that the present application include such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0028] In the description of this application, the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application rather than requiring this application to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application. The terms "connected", "connected to", and "disposed" used in this application should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component; for those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Figure 1 is a top view of a novel high-temperature and high-pressure desorption electrolysis device according to an embodiment of this application; Figure 2 is Figure 1 a sectional view taken along line A-A of a novel high-temperature and high-pressure desorption electrolysis device shown; Figure 3 is Figure 1 a sectional view taken along line B-B of a novel high-temperature and high-pressure desorption electrolysis device shown. As Figures 1-3As shown in the figure, a new type of high-temperature and high-pressure desorption electrolysis device, characterized by comprising: a desorption device 1, a first filter 2, an electrolytic cell 3, and a second filter 4. The desorption device 1 is connected to the first filter 2 through a filtration pipeline, the first filter 2 is connected to the electrolytic cell 3 through a precious liquid pipeline, and the electrolytic cell 3 is connected to the second filter 4 through the gold mud filtration pipeline. The desorption device 1 is a sealed container with a desorption liquid inlet opened at the bottom and a feed port 5 opened at the top. The desorption liquid enters the desorption device 1 through the desorption liquid inlet to desorb the gold-loaded carbon entering the desorption device 1 through the feed port 5, obtaining desorbed precious liquid and gold-depleted carbon. The gold-depleted carbon is discharged from the desorption device 1 through the depleted carbon outlet provided on the desorption device 1. The desorbed precious liquid enters the first filter 2 through the filtration pipeline based on the internal pressure of the desorption device 1. The first filter 2 is used to filter the desorbed precious liquid to obtain primary desorbed precious liquid, and the primary desorbed precious liquid enters the electrolytic cell 3 based on the precious liquid pipeline. The electrolytic cell 3 is used to electrolyze the primary desorbed precious liquid to reduce primary gold mud and obtain depleted liquid. The primary gold mud enters the second filter 4 based on the gold mud filtration pipeline, and the depleted liquid enters the desorption device 1 through the depleted liquid pipeline communicated with the bottom of the electrolytic cell 3 for recycling. The second filter 4 is used to filter the primary gold mud to obtain pure gold mud. In the present utility model, the desorption device 1 in the device desorbs the gold-loaded carbon under high-temperature and high-pressure conditions, effectively improving the desorption efficiency of gold elements, thereby enhancing the efficiency of the entire extraction process. At the same time, the rapid electrolysis ability of the electrolytic cell 3 further shortens the extraction time and improves the production efficiency. In addition, through two-stage filtration, that is, the first filter 2 filters the desorbed precious liquid and the second filter 4 filters the primary gold mud, impurities can be effectively removed, ensuring a high purity of the finally obtained gold mud. At the same time, the content of harmful substances in the waste liquid is reduced, which is beneficial to environmental protection. Moreover, the depleted liquid generated during the electrolysis process is re-introduced into the desorption device 1, realizing the recycling of resources, not only saving production costs but also reducing the impact on the environment. In addition, the process design of the entire system is reasonable, and the connection between each device is simple and clear, making the operation process more convenient, reducing the operation difficulty, and facilitating equipment maintenance and repair. Not only that, through precise control of the high-temperature and high-pressure desorption conditions and electrolysis conditions, the stability of the entire system operation can be ensured, reducing production fluctuations caused by changes in operating conditions. Finally, due to the improvement of extraction efficiency and purity, as well as the reduction of production costs and waste liquid treatment costs, this new type of device has obvious economic advantages.

[0030] Optionally, the desorption device 1 includes a desorption column 11 and a desorption liquid injection device 12. The desorption column 11 is a closed container with a desorption liquid inlet at the bottom, a feed inlet 5 at the top, and a lean carbon outlet on the wall. The desorption liquid injection device 12 is connected to the desorption liquid inlet communicated pipe opened at the bottom of the desorption device 1 through a desorption liquid pipeline, and pumps the desorption liquid into the desorption column 11 based on a circulation pump. The desorption liquid desorbs the gold-loaded carbon entering the desorption column 11 through the feed inlet 5. Through the desorption liquid injection device 12 and the desorption liquid pump, the desorption liquid can uniformly enter the desorption column 11 and effectively contact and react with the gold-loaded carbon. This can ensure that the gold in the gold-loaded carbon can be desorbed more quickly, thereby improving the desorption efficiency. Moreover, the setting of the desorption liquid injection device 12 and the desorption liquid pump enables the injection amount, injection speed, and injection time of the desorption liquid to be precisely controlled. This flexibility allows the operator to adjust the desorption conditions according to actual needs to achieve the best desorption effect. In addition, the lean carbon outlet opened on the wall of the desorption column 11 facilitates the discharge of the desorbed lean carbon, which is beneficial to the recovery and reuse of the lean carbon. In addition, since the desorption column 11 is designed as a closed container, it can effectively prevent the leakage of harmful gases or liquids generated during the desorption process and ensure the safety of the operator. Finally, the device does not require additional heat exchange equipment during the desorption process, reducing energy consumption. At the same time, the non-toxic desorption combination agent and the desorption liquid without adding sodium cyanide make the entire desorption process more environmentally friendly and reduce environmental pollution.

[0031] Optionally, the desorbing liquid injection device 12 includes: an electric heater 121 and a desorbing liquid tank 122. The electric heater 121 is a sealed container with a liquid inlet and a liquid outlet provided on its outer wall. The electric heater 121 is connected to the desorbing liquid tank 122 through a liquid inlet pipe, wherein one end of the liquid inlet pipe communicates with the desorbing liquid tank 122 filled with the desorbing liquid inside, and the other end communicates with the liquid inlet; the liquid outlet communicates with the bottom of the desorbing device 1 through the desorbing liquid pipe; under the action of the circulating pump, the desorbing liquid flows out of the desorbing liquid tank 122 and is pumped into the electric heater 121 through the liquid inlet pipe to heat the desorbing liquid based on the electric heater 121, so as to accelerate the desorbing rate; the lean liquid enters the desorbing liquid tank 122 through a lean liquid pipe communicating with the bottom of the electrolytic cell 3 for recycling. The electric heater 121 being a sealed container enables the desorbing liquid to maintain a relatively high temperature during the heating process and the heating is uniform. By means of electric heating, the desorbing liquid can quickly reach the required temperature, thereby accelerating the desorbing rate and improving the desorbing efficiency. Moreover, compared with other heating methods, such as gas heating or steam heating, the electric heater 121 has a higher energy conversion efficiency and lower energy consumption. At the same time, this device has no waste gas emissions and noise pollution, meeting the environmental protection requirements. In addition, through the circulating pump and the desorbing liquid pipe, the desorbing liquid can conveniently enter the electric heater 121 for heating and then flow into the desorbing device 1. The whole process has a high degree of automation, reducing manual operation and improving work efficiency. In addition, the lean liquid enters the desorbing liquid tank 122 through the lean liquid pipe, realizing the recycling of the desorbing liquid. This not only reduces the production cost but also reduces the generation of waste liquid, conforming to the concept of sustainable development. Finally, the electric heater 121 being a sealed container can effectively prevent the desorbing liquid from leaking or splashing during the heating process, ensuring the safety of the operators. At the same time, this device adopts electrical control, having high safety and stability.

[0032] Optionally, a lean liquid sampling pipe is provided on the lean liquid pipe, and a sample of the lean liquid is extracted from the lean liquid pipe through the lean liquid sampling pipe. Through the lean liquid sampling pipe, the operator can conveniently extract a sample of the lean liquid from the lean liquid pipe. These samples can be used for subsequent chemical analysis and the like to understand key indicators such as the composition and concentration of the lean liquid. This helps to monitor the quality change of the lean liquid during the desorbing process and ensure that the desorbing effect meets the expectations.

[0033] Optionally, a flange port 51 and a solenoid valve 52 are provided on the feed inlet 5; the flange port 51 is used to cooperate with the desorption device for material transportation and discharge, and the material transportation and discharge include transporting clear water, transporting the desorbed pregnant solution, and discharging the gas from the desorption column 11; the solenoid valve 52 is used to transport the gold-loaded carbon into the desorption device. The flange port 51 makes the connection between the desorption device and other related equipment or pipelines simple and convenient. At the same time, flange connections usually have good sealing performance, which can effectively prevent material leakage during transportation, ensuring the safety and stability of the desorption process. Moreover, through the flange port 51, the transportation and discharge of various substances can be conveniently achieved, including clear water, desorbed pregnant solution, and the discharge of gas in the desorption column 11. This versatility enables the desorption device 1 to adapt to different operating requirements, improving the flexibility and utilization rate of the equipment. In addition, the introduction of the solenoid valve 52 enables the transportation process of the gold-loaded carbon to be automatically controlled. By controlling the on-off state of the solenoid valve 52, the transportation volume and transportation time of the gold-loaded carbon can be precisely controlled, improving the accuracy and efficiency of the operation. Additionally, automatic control not only reduces the cumbersome and error-prone manual operation but also enables continuous production, improving production efficiency. At the same time, precise material control also helps to reduce production costs and improve economic benefits. Finally, the combined use of the solenoid valve 52 and the flange port 51 makes the desorption device 1 safer and more reliable during operation. The rapid response and precise control of the solenoid valve 52 can effectively prevent safety problems such as material blockage or leakage, ensuring the smooth progress of the production process.

[0034] Optionally, a container state detection sensor is provided in the solenoid valve 52 to detect the state of the gold-loaded carbon in the desorption column 11; when the gold-loaded carbon is lower than the set safety height in the desorption column 11, the solenoid valve 52 is opened to convey the gold-loaded carbon into the desorption column 11; when the gold-loaded carbon exceeds the set safety height in the desorption column 11, the solenoid valve 52 is closed to stop conveying the gold-loaded carbon into the desorption column 11. Through the combined use of the solenoid valve 52 and the container state detection sensor, the automatic replenishment and stop of the gold-loaded carbon in the desorption column 11 are realized. This greatly reduces the intervention of manual operation, improves the automation degree of the production process, and reduces the possibility of human errors. Moreover, by setting the safety height, when the gold-loaded carbon is lower than the safety height, the solenoid valve 52 automatically opens for replenishment, ensuring that the gold-loaded carbon in the desorption column 11 is always maintained at a certain level, thus guaranteeing the continuity and stability of the production process. At the same time, when the gold-loaded carbon exceeds the safety height, the solenoid valve 52 is closed, avoiding potential risks caused by excessive gold-loaded carbon, thereby improving the safety of production. In addition, by precisely controlling the replenishment amount of the gold-loaded carbon, it can be ensured that the desorption column 11 always operates in the best state, improving the production efficiency. At the same time, it avoids the situation of production interruption or efficiency reduction caused by insufficient or excessive gold-loaded carbon. In addition, by precisely controlling the replenishment of the gold-loaded carbon, unnecessary energy waste can be reduced, meeting the requirements of energy conservation and environmental protection. At the same time, the stable production process also helps to reduce the generation of waste, further enhancing the environmental protection benefits.

[0035] Optionally, the flange port 51 includes: a fresh water port, a desorbed pregnant liquor outlet, and a safety valve interface; fresh water enters the desorption column 11 through the fresh water port to clean the interior of the desorption column 11; the desorbed pregnant liquor is discharged from the desorption column 11 through the desorbed pregnant liquor outlet under the action of the internal pressure of the desorption column 11, and enters the first filter 2 through the filter pipeline to obtain a primary desorbed pregnant liquor; an exhaust pipeline is connected to the safety valve interface and is opened when the internal pressure of the desorption column 11 exceeds the set pressure to adjust the internal pressure of the desorption column 11. By providing a fresh water port, fresh water can be conveniently introduced into the desorption column 11 to clean the interior of the desorption column 11. This can not only effectively remove residues and impurities in the desorption column 11, ensure the purity of the desorption process, but also extend the service life of the desorption column 11 and reduce performance degradation or failures caused by the accumulation of impurities. Moreover, the desorbed pregnant liquor is smoothly discharged through the desorbed pregnant liquor outlet under the action of the internal pressure of the desorption column 11, enters the filter pipeline and finally reaches the first filter 2 for primary filtration. This design ensures the timely collection and effective filtration of the pregnant liquor, avoids waste of the pregnant liquor and environmental pollution, and also provides high-quality raw materials for subsequent treatment and refining. In addition, the exhaust pipeline connected to the safety valve interface automatically opens when the internal pressure of the desorption column 11 exceeds the set value, releasing some pressure, thereby maintaining the internal pressure of the desorption column 11 within a safe range. This not only prevents equipment damage or safety accidents that may be caused by excessive pressure, but also ensures the stable progress of the desorption process and improves the safety of production. In addition, through the reasonable design of the flange port 51 and its functions, the operation of the desorption column 11 becomes more flexible and efficient. Whether it is cleaning, collecting the pregnant liquor or adjusting the pressure, it can be completed through simple operations, improving production efficiency.

[0036] Optionally, the new high-temperature and high-pressure desorption electrolysis device further includes a high-pressure washer; based on the high-pressure washer, the clear water enters the desorption column 11 through a clear water pipeline with one end connected to the high-pressure washer and the other end connected to the clear water inlet to clean the interior of the desorption column 11. The high-pressure washer flushes the interior of the desorption column 11 with high-pressure water flow, which can more thoroughly remove the residues and impurities attached to the inner wall and corners of the desorption column 11. This high-pressure flushing method is more effective than traditional low-pressure cleaning, can ensure the cleanliness of the interior of the desorption column 11, and provide a good working environment for the subsequent production process. Moreover, due to the stronger impact force and penetration power of the high-pressure water flow provided by the high-pressure washer, the cleaning work of the desorption column 11 can be completed in a shorter time. This can not only improve production efficiency, reduce the production interruption time caused by cleaning, but also reduce labor costs and achieve a more efficient production process. In addition, by designing the clear water pipeline to connect the high-pressure washer with the clear water inlet, the cleaning operation becomes more convenient. At the same time, the high-pressure washer usually has automatic control and safety protection functions, which can ensure that the equipment will not be damaged or cause safety accidents due to excessive pressure during the cleaning process, thus ensuring the safety of the operators. In addition, regularly using the high-pressure washer to clean the desorption column 11 can effectively remove the dirt and impurities inside the equipment, reduce its corrosion and wear on the equipment. This helps to extend the service life of the desorption column 11, reduce maintenance costs, and improve the overall performance of the equipment.

[0037] Optionally, an observation port is provided at the lower part of the desorption column 11 to observe the state of the desorption of the gold-loaded carbon by the desorbing solution.

[0038] Optionally, the desorption device further includes a pneumatic equipment; the pneumatic equipment injects high-pressure air into the interior of the desorption column 11 through an air inlet opened on the desorption column 11 to accelerate the desorption rate.

[0039] Optionally, a precious liquid sampling pipeline is provided on the precious liquid pipeline to extract a sample of the precious liquid from the precious liquid pipeline.

[0040] Optionally, the new high-temperature and high-pressure desorption electrolysis device further includes: a gold-loaded carbon storage and transportation tank 6; the gold-loaded carbon storage and transportation tank 6 contains the gold-loaded carbon, and the gold-loaded carbon enters the desorption equipment 1 through the feed pipeline via the feed inlet 5 for desorption. Through the observation port, the operator can observe the interaction state between the desorbing solution and the gold-loaded carbon in real time, understand the progress and effect of the desorption process, and timely discover abnormal situations in the desorption process, such as too slow desorption speed, incomplete desorption, etc., so as to take corresponding measures for adjustment and optimization.

[0041] Optionally, the novel high-temperature and high-pressure desorption and electrolysis device further includes: a lean carbon storage and transportation tank 7; the lean carbon storage and transportation tank 7 contains the gold-depleted lean carbon discharged from the desorption column 11 through the lean carbon outlet. The lean carbon storage and transportation tank 7 is specifically used for containing the gold-depleted lean carbon discharged from the desorption column 11. This makes the collection, storage, and transportation of the gold-depleted lean carbon more centralized and efficient, reducing resource waste and efficiency reduction caused by decentralized treatment.

[0042] Optionally, the heating temperature of the electric heater 121 is 150 °C. The air pressure equipment provides at least 0.5 MPa of pressure. Since the desorption and electrolysis working temperature of this device is high, reaching 150 °C, which is 30 °C - 55 °C higher than that of the conventional system, and at the same time the working pressure of this system is as high as 0.5 MPa, which is 0.5 MPa higher than that of the conventional system. The desorption and electrolysis speed is very fast under high-temperature and high-pressure conditions, and all desorption and electrolysis work can be completed within 14 - 16 hours, shortening the working time by nearly 3 times compared with the conventional system. Due to the short desorption and electrolysis time, the annual processing capacity of the high-efficiency, low-consumption, and fast desorption and electrolysis gold-loaded carbon gold extraction system of the same specification is 2 - 3 times higher than that of the conventional system. Moreover, because this equipment provides high-temperature and high-pressure working conditions, the lean carbon grade after the desorption and electrolysis of the device is mostly stable at a relatively low level, with high desorption efficiency. When the gold-loaded carbon grade is about 3000 g / t, the desorption rate reaches more than 98%. The lean carbon grade can be reduced by 3 - 4 times compared with the conventional desorption and electrolysis device, which is beneficial to stabilizing the drainage grade of the carbon adsorption operation, improving the adsorption rate, and at the same time reducing the loss of gold in the cyanide tailing powder carbon, and can improve the actual cyanidation recovery rate. In addition, the desorption temperature and the electrolysis temperature in the system are the same, there is no heat exchange device, and the heat preservation effect is good. Also, due to the fast operation, the power consumption of the system is 1 / 2 - 1 / 4 of that of the conventional system, and it is an energy-saving gold-loaded carbon gold extraction device.

[0043] Optionally, the novel high-temperature and high-pressure desorption and electrolysis device further includes: a liquid level buffering mechanism, which is arranged in the desorption column 11, the electric heater 121 or the desorption liquid tank 122 to offset the change of the liquid level and maintain the normal operation of the system.

[0044] Optionally, a pressure control system is arranged inside the safety valve interface. When the pressure exceeds the set upper limit value, the safety valve interface is automatically opened to relieve pressure and adjust the pressure to the normal value.

[0045] Optionally, a safety control system is provided in the electric heater 121, and the safety control system includes: an intelligent control system, an automatic control mechanism, a safety valve and a manual valve. When the circulating pump is not running, the liquid in the system will not flow. In order to prevent the desorption liquid from heating up and vaporizing locally and increasing the pressure, the intelligent control system will automatically cut off the power to the electric heater 121. When the pressure rises at a certain position due to blockage, the electric heater 121 will also stop working automatically. When the circulating pump resumes operation or the pressure is reduced, the electric heater 121 will automatically start operation. When the system pressure rises to a certain value, the automatic control mechanism automatically opens the valve to relieve the pressure until the pressure reaches a normal value. The safety valve opens when the above two measures fail at the same time. The manual safety valve can be opened manually when the above measures fail at the same time.

[0046] Optionally, at least two circulating pumps are provided, one of which operates as a main pump and the other operates as a backup pump to provide power when the main pump needs to be repaired.

[0047] In the novel high-temperature and high-pressure desorption electrolysis device provided by the utility model, after the gold in the cyanide solution is adsorbed by the activated carbon, a reversible equilibrium state is established between the gold on the surface of the gold-loaded carbon in the cyanidation system and the gold in the cyanide solution, and the gold-loaded carbon is also in a similar equilibrium state during desorption. ˉ or OH ˉ When these anions are more easily adsorbed by activated carbon, the adsorbed Au(CN)2 ˉ The gold adsorption is replaced, and the reversible equilibrium of gold adsorption is destroyed, and it moves in a direction that is not conducive to gold adsorption. This is the desorption of gold. The process is as follows:

[0048]

[0049] The mechanism of gold desorption is essentially to destroy the balance of activated carbon adsorption as much as possible, so that the process goes in a direction that is not conducive to gold adsorption. Therefore, increasing the cyanide concentration, increasing the alkalinity, increasing the temperature, increasing the pressure or adding organic solvents can promote the desorption of gold from activated carbon.

[0050] Increasing the cyanide concentration, increasing the alkalinity, and adding organic solvents will increase production costs, while increasing the temperature and pressure are more economical and have significant effects.

[0051] The temperature of the desorption solution is an important kinetic factor in the desorption of gold from gold-loaded carbon.

[0052] Anode reaction:

[0053] 4OH - -4e→O 2 +2H 2 O

[0054] CN - + 2OH - - 2e → CNO - + H 2 O

[0055] 2CNO - + 4OH - - 6e → 2CO 2 + N 2 + 2H 2 O

[0056] Reactions of the main solution:

[0057] 2CN - + O 2 + 4H 2 O → 2NH 3 + 2HCO 3 -

[0058] HO - + H + → H 2 O

[0059] HCO 3 - + OH - → H 2 O + CO 3 -

[0060] Other reactions also occur during the electrolysis process, and the above three chemical reactions are the main ones.

[0061] Under normal electrolysis conditions, the main control step of the gold electrolysis process depends on the diffusion rate of Au(CN)2ˉ to the cathode surface. The deposition rate of gold is only controlled by the mass transfer process, and its electrolysis efficiency can be expressed by the following formula:

[0062] Log(CO / C1) = KmtS / 2.3F

[0063] Where: Km = P / δ ----- mass transfer coefficient; P ---- diffusion coefficient of the discharging particle Au(CN)2 ˉ ; δ ---- thickness of the diffusion layer; CO ---- original concentration of gold; Ct ---- concentration of gold after electrolysis; t ---- electrolysis time; S ---- cathode surface area.

[0064] Increasing the temperature of the electrolyte can increase the conductivity of the electrolyte and at the same time make the gold cyanide complex ion or the discharging particle Au(CN)2 ˉThe diffusion rate is accelerated, and the dissolution of oxygen in the electrolyte is reduced, reducing the reaction of competing currents. Therefore, as the temperature of the electrolyte increases, the deposition rate of gold increases, and the deposition efficiency of gold also increases.

[0065] The present application also provides a new type of high-temperature and high-pressure desorption electrolysis device, including: a desorption device, a first filter, an electrolytic cell, and a second filter. The desorption device is connected to the first filter through a filtration pipeline, the first filter is connected to the electrolytic cell through a precious liquid pipeline, and the electrolytic cell is connected to the second filter through the gold mud filtration pipeline; the desorption device is a sealed container with a desorption liquid inlet at the bottom and a feed inlet at the top; the desorption liquid enters the desorption device through the desorption liquid inlet to desorb the ore entering the desorption device through the feed inlet, obtaining desorbed precious liquid and demineralized poor carbon. The demineralized poor carbon is discharged from the desorption device through the poor carbon outlet provided on the desorption device. The desorbed precious liquid enters the first filter through the filtration pipeline based on the internal pressure of the desorption device; the first filter is used to filter the desorbed precious liquid to obtain primary desorbed precious liquid, and the primary desorbed precious liquid enters the electrolytic cell through the precious liquid pipeline; the electrolytic cell is used to electrolyze the primary desorbed precious liquid to reduce primary slime and obtain poor liquid. The primary slime enters the second filter through the gold mud filtration pipeline, and the poor liquid enters the desorption device through a poor liquid pipeline communicating with the bottom of the electrolytic cell for recycling; the second filter is used to filter the primary slime to obtain pure slime.

[0066] The present application also provides a new type of high-temperature and high-pressure desorption electrolysis system, which includes a new type of high-temperature and high-pressure desorption electrolysis device according to any one of the present application.

Claims

1. A new type of high temperature and high pressure desorption electrolysis device, characterized in that: include: A desorption device (1), a first filter (2), an electrolytic cell (3), and a second filter (4), wherein the desorption device (1) is connected to the first filter (2) via a filtering pipe, the first filter (2) is connected to the electrolytic cell (3) via a precious liquid pipe, and the electrolytic cell (3) is connected to the second filter (4) via a gold mud filtering pipe; The desorption device (1) is a closed container with a desorption liquid inlet at the bottom and a feed inlet (5) at the top; The desorption liquid enters the desorption device (1) through the desorption liquid inlet to desorb the gold-loaded carbon that enters the desorption device (1) through the feed inlet (5), thereby obtaining a desorbed noble liquid and gold-depleted carbon; The de-goldened lean carbon is discharged from the desorption device (1) through a lean carbon outlet provided on the desorption device (1), and the desorbed noble liquid enters the first filter (2) through the filter pipe based on the internal pressure of the desorption device (1); The first filter (2) is used to filter the desorbed precious liquid to obtain a primary desorbed precious liquid, and the primary desorbed precious liquid enters the electrolytic cell (3) based on the precious liquid pipeline; The electrolytic cell (3) is used to electrolyze the primary desorption precious liquid to reduce the primary gold mud and obtain the lean liquid. The primary gold mud enters the second filter (4) based on the gold mud filtering pipeline. The lean liquid enters the desorption device (1) through the lean liquid pipeline connected to the bottom of the electrolytic cell (3) for recycling. The second filter (4) is used to filter the primary gold mud to obtain pure gold mud.

2. The novel high-temperature and high-pressure desorption electrolysis device according to claim 1 is characterized in that: The desorption device (1) comprises: a desorption column (11) and a desorption liquid injection device (12); The desorption column (11) is a closed container having the desorption liquid inlet at the bottom, the feed inlet (5) at the top, and the carbon-poor outlet at the wall; The desorption liquid injection device (12) is connected to the desorption liquid inlet pipe opened at the bottom of the desorption device (1) through a desorption liquid pipeline, and based on a circulation pump, the desorption liquid is pumped into the desorption column (11); the desorption liquid is used to desorb the gold-loaded carbon that enters the desorption column (11) through the feed port (5).

3. The novel high-temperature and high-pressure desorption electrolysis device according to claim 2 is characterized in that: The desorption liquid injection device (12) comprises: an electric heater (121) and a desorption liquid tank (122); the electric heater (121) is a closed container with a liquid inlet and a liquid outlet provided on an outer wall; the electric heater (121) is connected to the desorption liquid tank (122) via a liquid inlet pipe, wherein one end of the liquid inlet pipe is in communication with the desorption liquid tank (122) containing the desorption liquid therein, and the other end is in communication with the liquid inlet; The liquid outlet is connected to the bottom of the desorption device (1) through the desorption liquid pipeline; the desorption liquid flows out of the desorption liquid tank (122) under the action of the circulation pump and is pumped into the electric heater (121) through the liquid inlet pipeline, so that the desorption liquid is heated by the electric heater (121) to accelerate the desorption rate; The lean liquid enters the desorption liquid tank (122) through a lean liquid pipeline connected to the bottom of the electrolytic tank (3) for circulation.

4. The novel high-temperature and high-pressure desorption electrolysis device according to claim 2 is characterized in that: The feed port (5) is provided with a flange port (51) and a solenoid valve (52); The flange opening (51) is used to cooperate with the desorption device to transport and discharge substances, and the substance transport and discharge include transporting clean water, transporting the desorbed precious liquid, and discharging gas from the desorption column (11); The solenoid valve (52) is used to transport the gold-loaded carbon into the desorption device.

5. The novel high-temperature and high-pressure desorption electrolysis device according to claim 4 is characterized in that: The solenoid valve (52) is provided with a container state detection sensor to detect the state of the gold-loaded carbon in the desorption column (11); When the gold-loaded carbon is lower than a safety height set in the desorption column (11), the solenoid valve (52) opens to transport the gold-loaded carbon into the desorption column (11); When the gold-loaded carbon exceeds a safety height set in the desorption column (11), the solenoid valve (52) is closed to stop transporting the gold-loaded carbon into the desorption column (11).

6. The novel high-temperature and high-pressure desorption electrolysis device according to claim 2 is characterized in that: An observation port is provided at the bottom of the desorption column (11) for observing the state of desorption of the gold-loaded carbon by the desorption liquid.

7. The novel high-temperature and high-pressure desorption electrolysis device according to claim 1 is characterized in that: The novel high-temperature and high-pressure desorption electrolysis device further comprises: a gold-loaded carbon storage and transportation tank (6); The gold-loaded carbon storage and transportation tank (6) contains the gold-loaded carbon, and the gold-loaded carbon enters the desorption device (1) through the feed pipe and the feed port (5) for desorption.

8. The novel high-temperature and high-pressure desorption electrolysis device according to claim 2 is characterized in that: The novel high-temperature and high-pressure desorption electrolysis device further comprises: a lean carbon storage and transportation tank (7); The de-gold-poor carbon storage and transportation tank (7) contains the de-gold-poor carbon discharged from the desorption column (11) through the de-gold outlet.

9. A new type of high temperature and high pressure desorption electrolysis equipment, characterized in that: include: A desorption device, a first filter, an electrolytic cell, and a second filter, wherein the desorption device is connected to the first filter via a filtering pipeline, the first filter is connected to the electrolytic cell via a noble liquid pipeline, and the electrolytic cell is connected to the second filter via a gold mud filtering pipeline; The desorption device is a closed container with a desorption liquid inlet at the bottom and a feed inlet at the top; The desorption liquid enters the desorption device through the desorption liquid inlet to desorb the ore entering the desorption device through the feed inlet to obtain desorption noble liquid and demineralized lean carbon. The demineralized lean carbon is discharged from the desorption device through a lean carbon outlet provided on the desorption device, and the desorbed noble liquid enters the first filter through the filter pipe based on the internal pressure of the desorption device; The first filter is used to filter the desorbed precious liquid to obtain a primary desorbed precious liquid, and the primary desorbed precious liquid enters the electrolytic cell based on the precious liquid pipeline; The electrolytic cell is used to electrolyze the primary desorption precious liquid to reduce the primary ore mud and obtain the lean liquid. The primary ore mud enters the second filter based on the gold mud filtration pipeline, and the lean liquid enters the desorption device through the lean liquid pipeline connected to the bottom of the electrolytic cell for recycling. The second filter is used to filter the primary sludge to obtain pure sludge.

10. A novel high temperature and high pressure desorption electrolysis system, characterized in that: A novel high-temperature and high-pressure desorption electrolysis device comprising any one of claims 1-8.

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