System for recovering metals in gold ore carbon leaching barren liquor

Abstract

The utility model relates to a metal recovery system in gold ore carbon leaching barren liquor, which comprises a leaching tank and a liquid storage bin connected with a discharge port of the leaching tank, a liquid inlet is arranged on one side of the top of the leaching tank, a stirring device is arranged in the leaching tank, a filter plate is arranged at the bottom of the leaching tank, and a plurality of filter screens are uniformly distributed on the filter plate along the center line of the leaching tank; a circulating system is arranged between the leaching tank and the liquid storage bin and comprises a material pump, a feeding port of the material pump is communicated with the side wall of the liquid storage bin through a pipeline, a discharging port of the material pump is connected with a spraying pipe at the top of the leaching tank through a circulating pipe, and the spraying pipe is communicated with the interior of the leaching tank; a liquid discharge pipe is arranged at the bottom of the liquid storage bin, and a valve is arranged on the liquid discharge pipe. According to the utility model, a filtering system and a circulating system are arranged on the same device, the whole structure is compact and reasonable, the use and the transfer are convenient, the occupied area is small, the same device simultaneously realizes the functions of leaching, filtering and circulating, and the leaching rate of valuable metals in barren liquor is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgy, in particular to a metal recovery system in gold mine carbon leaching lean liquid. Background Art

[0002] In the gold industry, the recycling of wastewater generated by the gold smelting cyanidation process results in a high concentration of pollutants in the lean liquid. The main pollutants include cyanide, copper, arsenic, sodium, sulfate, etc., which affect other process indicators when the lean liquid is recycled. Therefore, it is necessary to purify the lean liquid and recover the valuable metals therein. For example, a recovery system for valuable metals in the lean liquid of gold mine carbon leaching disclosed in CNCN212581988U includes a base and a mobile frame, a frame is installed at the top of the base near the two ends, and a top plate is horizontally arranged at the top of the frame, a motor is installed at the top of the top plate near the left end, and a conveyor belt is connected to the bottom of the motor, a mobile frame is fixed on the front surface of the conveyor belt, and a hydraulic cylinder is installed at the top of the mobile frame, a hydraulic rod is connected to the bottom of the hydraulic cylinder, and a sliding rod is connected and fixed to the bottom of the hydraulic rod, and a gold absorbing plate is installed at the bottom of the sliding rod. The two sides of the slide rod are slidably connected with slide grooves, a liquid tank is installed on the top of the base near the left side, and a filter tank is installed on the right wall of the liquid tank, a sealing plate is installed on the top of the filter tank, and a handle is symmetrically arranged on the top of the sealing plate, a medicine liquid box is installed near the top of the right wall of the filter tank, and a telescopic push rod is arranged on the right end of the middle part of the medicine liquid box, sliders are fitted on both sides of the telescopic push rod, and slide rails are fitted on the outer wall of the slider, an inclined plate is provided inside the filter tank near the lower end support, and a water outlet pipe is connected and installed below the right end of the inclined plate, and a rubber stopper is embedded in the right end of the water outlet pipe. When the recovery system performs recovery and processing operations on the gold ore carbon-leached lean liquid inside the liquid tank, the conveyor belt drives the movable frame to move horizontally left and right, so that the gold absorption plate inside the movable frame can cyclically adhere to and absorb valuable metals at the bottom of the liquid tank. At the same time, the sliding structure drives the gold absorption plate to descend into the filter tank, and then the liquid medicine is used to comprehensively clean and collect the metal absorbed by the gold absorption plate, thereby improving the flexibility and practicality of the recovery system itself.

[0003] The above-mentioned system for recovering valuable metals in the gold mine carbon leaching lean solution mainly relies on adsorption and separation by a gold absorption plate. The separation operation involves multiple mechanisms, has a complex structure, limited separation effect, low separation efficiency, and incomplete separation. In view of these problems, the present application proposes a metal recovery system in the gold mine carbon leaching lean solution that is simple to operate and can be recycled and separated. Utility Model Content

[0004] The utility model provides a metal recovery system in gold mine carbon leaching lean liquid.

[0005] The specific technical scheme of the utility model is: a metal recovery system in gold mine carbon leaching lean liquid, comprising a leaching tank and a liquid storage bin connected to the discharge port thereof, wherein a liquid inlet is arranged on one side of the top of the leaching tank, a stirring device is arranged inside, a filter plate is arranged at the bottom, and a plurality of filter screens are evenly distributed on the filter plate along the center line of the leaching tank; a circulation system is arranged between the leaching tank and the liquid storage bin, the circulation system comprises a material pump, the feed port of the material pump is communicated with the side wall of the liquid storage bin through a pipeline, the discharge port of the material pump is connected to the nozzle at the top of the leaching tank through a circulation pipe, and the nozzle is communicated with the inside of the leaching tank; a discharge pipe is arranged at the bottom of the liquid storage bin, and a valve is arranged on the discharge pipe.

[0006] Further, preferably, the stirring device includes a stirring motor, which is arranged at the top center position of the leaching tank, and the output end of the stirring motor extends into the leaching tank and is connected to a stirring paddle, and at least two cross bars are arranged on the outer peripheral wall of the stirring paddle, and the other end of the cross bar is connected to a stirring plate.

[0007] Further, preferably, the stirring plate is a U-shaped plate.

[0008] Furthermore, preferably, a perspective window is provided on the side wall of the leaching tank.

[0009] Furthermore, preferably, a sealing plate is provided on the liquid inlet of the leaching tank.

[0010] Further, preferably, a box body is provided on the outer periphery of the liquid storage bin, and two auxiliary wheels are installed on the bottom of the box body.

[0011] Furthermore, preferably, a metal detector is provided on the side wall of the box body, and a detection probe of the metal detector extends into the interior of the liquid storage tank.

[0012] Further, preferably, a file slot is provided on one side wall of the box.

[0013] The beneficial effects of the utility model are as follows: the utility model arranges the filtering and circulating systems on the same device, the whole device has a compact and reasonable structure, is easy to use and transfer, occupies a small area, and with the cooperation of the filter plate and the filter mesh, the leaching of gold slag and filtrate by carbon leaching lean liquid is well achieved, and at the same time, the filtrate is leached repeatedly with the circulation system, which greatly improves the leaching rate of valuable metals in the lean liquid, improves the gold ore recovery rate, and is also conducive to the reuse of the lean liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a metal recovery system in a gold mine carbon leaching lean solution according to the utility model;

[0015] Figure 2 for Figure 1Schematic diagram of the internal structure of the leaching tank;

[0016] Figure 3 for Figure 1 Schematic diagram of the circulation system structure between the leaching tank and the liquid storage tank;

[0017] In the figure: 1- leaching tank, 2- liquid storage tank, 3- liquid inlet, 4- stirring motor, 5- stirring paddle, 6- cross bar, 7- stirring plate, 8- filter plate, 9- filter screen, 10- drain pipe, 11- valve, 12- material pump, 13- circulation pipe, 14- nozzle, 15- perspective window, 16- sealing plate, 17- box, 18- auxiliary wheel, 19- metal detector, 20- file slot. DETAILED DESCRIPTION

[0018] In order to make the technical problems and technical solutions solved by the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] like Figures 1 to 3As shown, a metal recovery system in gold ore carbon leaching lean liquid comprises a leaching tank 1 and a liquid storage bin 2 connected to the discharge port thereof, a liquid inlet 3 is arranged on one side of the top of the leaching tank 1, a stirring device is arranged inside, a filter plate 8 is arranged at the bottom, and a plurality of filter screens 9 (may be three) are evenly distributed on the filter plate 8 along the center line of the leaching tank 1; a circulation system is arranged between the leaching tank 1 and the liquid storage bin 2, the circulation system comprises a material pump 12, a material inlet of the material pump 12 is connected to the side wall of the liquid storage bin 2 through a pipeline, a material outlet of the material pump 12 is connected to a nozzle 14 at the top of the leaching tank 1 through a circulation pipe 13, and the nozzle 14 is connected to the inside of the leaching tank 1; a liquid discharge pipe 10 is arranged at the bottom of the liquid storage bin 2, and a valve 11 (an electric valve is adopted for easy control) is arranged on the liquid discharge pipe 10.

[0022] In this embodiment, the stirring device includes a stirring motor 4, which is arranged at the top center position of the leaching tank 1. The output end of the stirring motor 4 extends into the leaching tank 1 and is connected to the stirring paddle 5. At least two cross bars 6 are arranged on the outer peripheral wall of the stirring paddle 5. The other end of the cross bar 6 is connected to a stirring plate 7. The stirring plate 7 is a U-shaped plate, which can make the stirring more sufficient.

[0023] The leaching tank 1 of this embodiment is provided with a perspective window 15 on the side wall for conveniently observing the leaching of valuable metals in the lean liquid. A sealing plate 16 is provided on the liquid inlet 3 of the leaching tank 1 to seal the liquid inlet 3 to prevent liquid from splashing out.

[0024] The outer periphery of the liquid storage tank 2 of this embodiment is provided with a box body 17, and two auxiliary wheels 18 (such as Figure 1 The two auxiliary wheels are mounted on the two feet on the left side of the box body, so that the whole system can be assembled on the box body and can be flexibly transferred to the place of use. The material pump 12 connected to the side wall of the liquid storage bin 2 can be fixed on the inner wall of the box body 17, and a hole is opened on the box body 17 for the circulation pipe 13 to pass through and connect to the nozzle 14.

[0025] A metal detector 19 is provided on one side wall of the box 17. The detection probe of the metal detector 19 extends into the liquid storage tank 2 to detect the metal residue in the filtrate after the recovery process so as to control the circulation system. A file slot 20 is provided on one side wall of the box 17 to facilitate the placement of data recording files related to the processing process.

[0026] Working principle: The lean solution of gold ore carbon leaching and the gold washing solution are sequentially injected into the leaching tank 1 through the liquid inlet 3, and the stirring motor 4 is started to drive the stirring paddle 5 to rotate, so that the lean solution and the solution are fully mixed and reacted, and the reaction obtains gold slag and filtrate, which are filtered through the filter plate 8, wherein the gold slag is trapped on the filter plate 8 for recovery, and the filtrate flows through the mesh of the filter screen 9 through the liquid storage tank 2. At this time, the material pump 12 is started, and the material pump 12 will return the filtrate to the leaching tank 1 for another reaction, and the cycle is repeated until the valuable metals in the lean solution are fully recovered. During the reaction process, the reaction situation can be observed from the perspective window 15, and the metal residue in the filtrate can be detected by the metal detector 19 to control the start and stop of the circulation system. When the residual metal content in the filtrate reaches the requirement, the material pump 12 can be closed, and the valve 11 on the discharge pipe 10 can be opened to discharge the filtrate.

[0027] The present invention is described in detail above through specific and preferred embodiments, but those skilled in the art should understand that the present invention is not limited to the embodiments described above, and any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A system for recovering metal from gold mine carbon leaching barren solution, characterized by: The invention comprises a leaching tank (1) and a liquid storage bin (2) connected to the discharge port thereof, wherein the top side of the leaching tank (1) is provided with a liquid inlet (3), a stirring device is provided inside, and a filter plate (8) is provided at the bottom, wherein the filter plate (8) has a plurality of filter screens (9) evenly distributed along the center line of the leaching tank (1); a circulation system is provided between the leaching tank (1) and the liquid storage bin (2), wherein the circulation system comprises a material pump (12), wherein the material inlet of the material pump (12) is connected to the side wall of the liquid storage bin (2) through a pipeline, and the discharge port of the material pump (12) is connected to a nozzle (14) at the top of the leaching tank (1) through a circulation pipe (13), and the nozzle (14) is connected to the inside of the leaching tank (1); a liquid discharge pipe (10) is provided at the bottom of the liquid storage bin (2), and a valve (11) is provided on the liquid discharge pipe (10).

2. The metal recovery system in gold mine carbon leaching barren solution according to claim 1, characterized in that: The stirring device comprises a stirring motor (4), the stirring motor (4) being arranged at the top center position of the leaching tank (1), the output end of the stirring motor (4) extending into the leaching tank (1) and connected to a stirring paddle (5), at least two cross bars (6) being arranged on the outer peripheral wall of the stirring paddle (5), and the other end of the cross bar (6) being connected to a stirring plate (7).

3. The metal recovery system in gold mine carbon leaching barren solution according to claim 2, characterized in that: The stirring plate (7) is a U-shaped plate.

4. The metal recovery system in gold mine carbon leaching barren solution according to claim 1, characterized in that: A perspective window (15) is provided on the side wall of the leaching tank (1).

5. The metal recovery system in gold mine carbon leaching barren solution according to claim 1, characterized in that: A sealing plate (16) is provided on the liquid inlet (3) of the leaching tank (1).

6. The metal recovery system in gold mine carbon leaching barren solution according to claim 1, characterized in that: A box body (17) is arranged on the outer periphery of the liquid storage bin (2), and two auxiliary wheels (18) are installed on the bottom of the box body.

7. A system for recovering metal from gold mine carbon-leaching barren solution according to claim 6, characterized in that: A metal detector (19) is provided on one side wall of the box body (17), and a detection probe of the metal detector (19) extends into the interior of the liquid storage bin (2).

8. A system for recovering metal from gold mine carbon-leaching barren solution according to claim 6 or 7, characterized in that: A file slot (20) is provided on one side wall of the box body (17).

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