High-argillaceous gold-loaded carbon pre-cleaning device

Abstract

The utility model discloses a pre-cleaning device for high-argillaceous gold-loaded carbon. The feeding device has the beneficial effects that the uniform feeding of the gold-loaded carbon can be realized through the screening adsorption mechanism in the feeding hopper, and impurities such as plastic binding tapes, wood chips, scrap iron, iron nails and the like in the gold-loaded carbon can be removed in time; in addition, in the gold-loaded carbon conveying process, static pressure cleaning of the gold-loaded carbon in the carbon storage tank can be achieved, meanwhile, dynamic and static secondary high-pressure cleaning of the gold-loaded carbon in the conveying process is guaranteed, and cleanliness of the gold-loaded carbon in the desorption column is effectively guaranteed; the problems of screen mesh blockage, desorption pipeline blockage, desorption solution pollution, electrolytic efficiency reduction and slurry deposition in a liquid preparation tank and a heater caused by the fact that carbon powder, slurry, broken carbon and the like circularly enter a desorption electrolysis system along with the desorption solution are avoided; in addition, the movable pneumatic stirring assembly can achieve timely recovery of sludge with large specific gravity and deposited in the sewage pool, and the labor workload of field operators for cleaning the sludge in the carbonization pool is remarkably reduced.

Description

Technical Field

[0001] This utility model relates to the field of precious metal metallurgy technology, specifically to a pre-cleaning device for gold-loaded carbon with high clay content. Background Technology

[0002] Currently, the industry uses cylindrical screens and linear vibrating screens to clean gold-loaded carbon with high clay content during the carbon extraction process in the gold ore slurry adsorption tank, in order to remove as much clay and carbon fragments as possible. However, the cleaning effect is often limited. On the one hand, although cylindrical screens and vibrating screens can remove most of the clay under short-term water rinsing, the fine clay particles attached to the surface of the activated carbon are difficult to remove. On the other hand, large particles of wood shavings, iron filings, etc., mixed in with the gold-loaded carbon are difficult to be effectively cleaned after screening and interception. In addition, carbon loss is inevitable during the water pressure transportation or bag transportation process from the adsorption tank to the desorption electrolysis process after carbon extraction in the gold ore slurry adsorption tank, resulting in a small amount of carbon fragments or carbon powder. This part of the carbon fragments or carbon powder will enter the desorption electrowinning system along with the gold-loaded carbon.

[0003] Incompletely cleaned gold-loaded carbon can cause the following problems during desorption electrolysis: 1. As the high-temperature desorption liquid circulates, the mud, carbon fragments, and carbon powder on the surface of the gold-loaded carbon will be continuously washed away by the desorption liquid and deposited in the solution tank and heater, contaminating the desorption liquid, affecting the desorption effect, and increasing the workload of regular manual cleaning; some charged mud will accumulate and enrich in the desorption pipe under the influence of the weak current of the electrolytic cell, causing blockage of the desorption pipe; 2. Wood shavings, plastic and other impurities will cause screen blockage during the high-temperature desorption process, resulting in a reduction in desorption flow and failure to effectively guarantee the desorption effect; 3. Fine iron filings will pass through the stainless steel screen with the circulation of the desorption liquid, causing damage to the desorption pump bearings; 4. Impurities such as iron nails may get stuck at the pipe flange connection during the process of transporting the gold-loaded carbon from the carbon storage tank to the desorption column, causing blockage of the carbon conveying pipe. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a high-mud gold-loaded carbon pre-cleaning device that can achieve the purpose of cleaning and desliming high-mud gold-loaded carbon at the front end of the gold-loaded carbon desorption and electrolysis process, remove as much as possible the impurities such as plastic, iron filings, and wood shavings mixed in the gold-loaded carbon, and promptly recover this part of the mud, carbon powder, and broken carbon particles, controlling them to not enter or to a minimum enter the desorption and electrolysis system, so as to ensure the smooth operation of production.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: This utility model proposes a pre-cleaning device for high-mud gold-loaded carbon, including a carbon storage tank. A feeding funnel is installed at the inlet of the carbon storage tank. A screening and adsorption mechanism is installed on the feeding funnel. The screening and adsorption mechanism includes a powerful magnetic block, a stainless steel screen, and a bin wall vibrator. The stainless steel screen is installed in the upper part of the feeding funnel, the powerful magnetic block is installed between the screen holes on the stainless steel screen, and the bin wall vibrator is installed on the outer wall of the feeding funnel. A charcoal pump is connected to the inlet of the charcoal storage tank. The inlet of the charcoal pump is connected to a clear water tank. A sewage tank is set on one side of the clear water tank. A partition is installed between the sewage tank and the clear water tank. A movable pneumatic stirring assembly is installed in the sewage tank. A vertical slurry pump is also installed on one side of the sewage tank. A diaphragm filter press is connected to the outlet of the vertical slurry pump. A desorption column is connected to the discharge port of the charcoal storage tank. A lean charcoal storage tank is connected to the discharge port of the desorption column. A linear vibrating screen is connected to the discharge port of the lean charcoal storage tank.

[0008] Furthermore, the stainless steel screen is connected to the feeding funnel by bolts, and the powerful magnetic block is inserted into the stainless steel screen.

[0009] Furthermore, the powerful magnetic block is a permanent magnet, and the silo wall vibrator is bolted to the feeding hopper.

[0010] Furthermore, the charcoal pump is connected to the clear water tank and the charcoal storage tank via pipelines, and the charcoal storage tank is connected to the desorption column via pipelines.

[0011] Furthermore, the vertical slurry pump is located at the bottom of the sewage tank, and the vertical slurry pump is connected to the diaphragm filter press via a pipeline.

[0012] Furthermore, the stirring component of the pneumatic stirring assembly extends into the wastewater tank, and the clear water outlet of the diaphragm filter press is connected to the clear water tank via a pipe.

[0013] Furthermore, the wastewater outlet of the desorption column is connected to the wastewater pool via a pipe, and the upper side of the carbon storage tank is also equipped with a compressed air inlet.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] In use, this invention first utilizes a sieving and adsorption mechanism in the feeding funnel to ensure uniform feeding of the gold-loaded carbon, while simultaneously removing impurities such as plastic binding tape, wood chips, iron filings, and nails. Then, during the transport of the gold-loaded carbon, a charcoal pump, a clear water tank, a wastewater tank, a pneumatic stirring assembly, a diaphragm filter press, and a vertical slurry pump are used to achieve static pressure cleaning of the gold-loaded carbon in the storage tank. This ensures dynamic and static secondary high-pressure cleaning of the gold-loaded carbon during transport, effectively guaranteeing the cleanliness of the gold-loaded carbon within the desorption column. This prevents carbon powder, slurry, and broken carbon from entering the desorption electrolysis system with the desorption liquid, thus avoiding problems such as screen blockage, desorption pipe blockage, desorption liquid contamination, decreased electrolysis efficiency, and slurry accumulation in the mixing tank and heater. Furthermore, the movable pneumatic stirring assembly allows for the timely recovery of heavier sludge deposited in the wastewater tank, significantly reducing the workload of on-site personnel cleaning sludge from the charcoal tank. Attached Figure Description

[0017] Fig. 1 This is a flowchart of a high-mud gold-loaded carbon pre-cleaning device according to the present invention;

[0018] Fig. 2 This is a schematic diagram of the feeding funnel in the high mud content gold-loaded carbon pre-cleaning device of this utility model;

[0019] Fig. 3 This is a flowchart of an existing high-mud gold-loaded carbon pre-cleaning device.

[0020] The annotations in the attached figures are explained as follows:

[0021] 1. Feeding funnel; 2. Carbon storage tank; 3. Pneumatic stirring assembly; 4. Vertical slurry pump; 5. Diaphragm filter press; 6. Desorption column; 7. Lean carbon storage tank; 8. Linear vibrating screen; 9. Wastewater tank; 10. Baffle plate; 11. Clear water tank; 12. Carbon discharging pump; 13. Screening and adsorption mechanism; 1301. High-strength magnetic block; 1302. Stainless steel screen; 1303. Bin vibrator. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] like Figs. 1-3As shown, a pre-cleaning device for high-mud gold-loaded charcoal in this embodiment includes a charcoal storage tank 2. A feeding funnel 1 is installed at the inlet of the charcoal storage tank 2. A screening and adsorption mechanism 13 is installed on the feeding funnel 1. The screening and adsorption mechanism 13 includes a powerful magnetic block 1301, a stainless steel screen 1302, and a bin vibrator 1303. The stainless steel screen 1302 is installed in the upper part of the feeding funnel 1, and the powerful magnetic block 1301 is installed between the screen holes on the stainless steel screen 1302. A wall vibrator 1303 is installed on the outer wall of the feeding hopper 1. When the wall vibrator 1303 is pneumatically activated, the feeding hopper 1 vibrates. After the feeding hopper 1 vibrates, it uses a stainless steel screen 1302 to screen the gold-loaded carbon, removing impurities such as sawdust and plastic binding. At the same time, under the action of a strong magnetic block 1301, impurities such as iron filings and iron filings in the gold-loaded carbon can be adsorbed and removed. A carbon-beating pump 12 is connected to the water inlet of the carbon storage tank 2, and the water inlet of the carbon-beating pump 12 is connected to clean water. Pool 11 has a wastewater pool 9 on one side. A partition 10 is installed between the wastewater pool 9 and the clear water pool 11. The partition 10 is mainly used to separate the wastewater pool 9 from the clear water pool 11 to prevent the sludge at the bottom of the wastewater pool 9 from rolling and affecting the clean transport of gold-loaded carbon in the carbon storage tank 2. A movable pneumatic stirring assembly 3 is installed in the wastewater pool 9. A vertical slurry pump 4 is also installed on one side of the wastewater pool 9. The outlet of the vertical slurry pump 4 is connected to a diaphragm filter press 5. An overflow port is provided on the partition 10. When the clear water tank 11 is full, it can overflow towards the sewage tank 9. All the char-making water that has not been filtered by the diaphragm filter press 5 flows into the sewage tank 9. After being filtered by the diaphragm filter press 5, the liquid is directly used for production. The discharge port of the char storage tank 2 is connected to the desorption column 6, and the discharge port of the desorption column 6 is connected to the lean char storage tank 7. The lean char storage tank 7 is mainly used to store the gold-loaded char after analysis. The discharge port of the lean char storage tank 7 is connected to the linear vibrating screen 8, which is mainly used to further screen the gold-loaded char after analysis.

[0024] like Figs. 1-2 As shown, in this embodiment, the stainless steel screen 1302 is connected to the feeding hopper 1 by bolts, the strong magnetic block 1301 is inserted into the stainless steel screen 1302, the strong magnetic block 1301 is a permanent magnet, the bin wall vibrator 1303 is connected to the feeding hopper 1 by bolts, and the strong magnetic block 1301 can adsorb and clean the iron filings and iron nails in the gold-loaded carbon.

[0025] like Fig. 2As shown, in this embodiment, the carbon pump 12 is connected to the clear water tank 11 and the carbon storage tank 2 through pipes. The carbon storage tank 2 is connected to the desorption column 6 through pipes. The vertical slurry pump 4 is located at the bottom of the sewage tank 9 and is connected to the diaphragm filter press 5 through pipes. The stirring component of the pneumatic stirring assembly 3 extends into the sewage tank 9. The clear water outlet of the diaphragm filter press 5 is connected to the clear water tank 11 through pipes. The pneumatic stirring assembly 3 is connected to the stainless steel pipe through a high-pressure resistant hose. The operator can hold the stainless steel pipe and rotate it according to actual needs to blow up the sludge deposited at the bottom. The sewage outlet of the desorption column 6 is connected to the sewage tank 9 through pipes. The desorption column 6 is mainly used to realize the desorption treatment of gold-loaded carbon. The carbon storage tank 2 is also equipped with a compressed air inlet on the upper side.

[0026] The specific implementation process of this embodiment is as follows: Before the gold-loaded carbon is desorbed and electrolyzed, the gold-loaded carbon is pre-cleaned and the gold-containing materials are recovered. First, the screening and adsorption mechanism 13 in the feeding funnel 1 at the top of the carbon storage tank 2 is used to pre-clean the impurities in the gold-loaded carbon to achieve uniform feeding of the gold-loaded carbon. At the same time, impurities such as plastic binding tape, wood chips, iron chips, and iron nails in the gold-loaded carbon are removed in time. After a single feeding is completed, the impurities attached to the grid screen and magnet are manually sorted, cleaned, and recovered. After feeding is completed, the water inlet valve and the drain valve of the carbon storage tank 2 are opened, and the carbon pump 12 is started to continuously rinse the gold-loaded carbon by pumping carbon water in the clear water tank 11 (rinsing time is about 20 minutes until clear water flows out of the drain valve). The fine mud, carbon powder, and broken carbon attached to the surface of the gold-loaded carbon begin to flow out from the drain valve into the sewage tank 9 under the action of the huge impact force of the water flow. At this time, the compressed air is turned on to continuously stir the pneumatic stirring component 3 in the sewage tank 9. The heavier particles are deposited in the wastewater tank. The mud, charcoal fragments, and other suspended particles at the bottom of the pool are pumped into a diaphragm filter press 5 by a vertical slurry pump 4 for filtration. The clean water is then returned to the clear water tank 11 for reuse. This process maximizes the timely recovery of fine mud, charcoal powder, and charcoal fragments from the charcoal-making water. After the gold-loaded charcoal is cleaned in the charcoal storage tank 2, the charcoal conveying valve on the pipeline from the desorption column 6 to the charcoal storage tank 2 and the drain valve on the desorption column 6 are opened. The charcoal-making pump 12 is then started to transport the gold-loaded charcoal according to the original method. During this process, the gold-loaded charcoal is transported by extending the... The original gold-loaded carbon conveying time is extended from 8 to 15 minutes, and three water rinsings are performed to achieve dynamic cleaning during the gold-loaded carbon flow process, thoroughly cleaning the residual mud and carbon powder on the gold-loaded carbon. During this process, the diaphragm filter press 5 is kept running. After desorption, the lean carbon is conveyed to the lean carbon storage tank 7. After being screened by the linear vibrating screen 8, the crushed carbon, carbon powder, etc. flow into the sewage tank 9 with the carbon-making water. After being filtered by the diaphragm filter press 5 under the pneumatic stirring component 3, the filtrate flows into the clear water tank 11.

[0027] The recovered carbon powder, slurry, and broken carbon have low moisture content, which can be maintained at around 20%-30%. The gold and silver grades can reach over 400g / t and 700g / t respectively, effectively ensuring the cleanliness of the gold-loaded carbon in the desorption column 6. This prevents the carbon powder, slurry, and broken carbon from entering the desorption electrolysis system with the desorption liquid and depositing in the solution tank and heater, thus avoiding contamination of the desorption liquid, affecting the desorption effect, and increasing the workload of manual cleaning. At the same time, the high gold and silver content of the carbon powder, slurry, and broken carbon are recovered in a timely manner, effectively preventing the accumulation of charged mud in the desorption pipe under the influence of the weak current in the electrolysis cell, which could lead to blockage of the desorption pipe. In addition, under this device, the carbon extraction water can be continuously recycled and kept clean, fully realizing the goal of green production. Due to the improvement of this method, the workload of on-site operators in disassembling and assembling screens, cleaning heaters, and storage tanks is significantly reduced, and the production indicators are also more excellent.

[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pre-cleaning device for gold-loaded carbon with high clay content, characterized in that: The system includes a charcoal storage tank (2), a feeding funnel (1) installed at the inlet of the charcoal storage tank (2), a screening and adsorption mechanism (13) installed on the feeding funnel (1), a charcoal pump (12) connected to the water inlet of the charcoal storage tank (2), a clear water tank (11) connected to the water inlet of the charcoal pump (12), a sewage tank (9) provided on one side of the clear water tank (11), and a partition installed between the sewage tank (9) and the clear water tank (11). 10) A movable pneumatic stirring assembly (3) is installed in the sewage tank (9). A vertical slurry pump (4) is also installed on one side of the sewage tank (9). The outlet of the vertical slurry pump (4) is connected to a diaphragm filter press (5). A desorption column (6) is connected to the discharge port of the carbon storage tank (2). A lean carbon storage tank (7) is connected to the discharge port of the desorption column (6). A linear vibrating screen (8) is connected to the discharge port of the lean carbon storage tank (7).

2. The high-mud gold-loaded carbon pre-cleaning device according to claim 1, characterized in that: The screening and adsorption mechanism (13) includes a powerful magnetic block (1301), a stainless steel screen (1302), and a bin wall vibrator (1303). The stainless steel screen (1302) is installed in the upper part of the feeding hopper (1), the powerful magnetic block (1301) is installed between the screen holes on the stainless steel screen (1302), and the bin wall vibrator (1303) is installed on the outer wall of the feeding hopper (1).

3. The high-mud content gold-loaded carbon pre-cleaning device according to claim 2, characterized in that: The stainless steel screen (1302) is connected to the feeding funnel (1) by bolts, and the powerful magnetic block (1301) is inserted into the stainless steel screen (1302).

4. The high-mud gold-loaded carbon pre-cleaning device according to claim 3, characterized in that: The powerful magnetic block (1301) is a permanent magnet, and the bin wall vibrator (1303) is bolted to the feeding hopper (1).

5. The high-mud gold-loaded carbon pre-cleaning device according to claim 1, characterized in that: The charcoal pump (12) is connected to the clear water tank (11) and the charcoal storage tank (2) through pipes, and the charcoal storage tank (2) is connected to the desorption column (6) through pipes.

6. The high-mud gold-loaded carbon pre-cleaning device according to claim 1, characterized in that: The vertical slurry pump (4) is located at the bottom of the sewage tank (9), and the vertical slurry pump (4) is connected to the diaphragm filter press (5) through a pipeline.

7. The high-mud gold-loaded carbon pre-cleaning device according to claim 1, characterized in that: The stirring component of the pneumatic stirring assembly (3) extends into the sewage tank (9), and the clear water outlet of the diaphragm filter press (5) is connected to the clear water tank (11) through a pipe.

8. The high-mud gold-loaded carbon pre-cleaning device according to claim 1, characterized in that: The wastewater outlet of the desorption column (6) is connected to the wastewater pool (9) via a pipe, and the upper side of the carbon storage tank (2) is also equipped with a compressed air inlet.

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