Dump leaching device

Abstract

The utility model belongs to the technical field of dump leaching of mineral aggregates, and discloses a dump leaching device. The heap leaching device comprises a plurality of normal-pressure heap leaching pools, a plurality of settling tanks, a plurality of acid liquor pools and an acid liquor circulating structure, heap leaching mineral aggregates are arranged in the normal-pressure heap leaching pools, the settling tanks are communicated with the normal-pressure heap leaching pools and the acid liquor pools in a one-to-one correspondence mode, each settling tank comprises a tank body, a first partition plate and a second partition plate, and the first partition plate and the second partition plate are arranged in the tank body. The top end of the second partition plate is higher than that of the first partition plate, the first partition plate divides the settling tank into a settling area and a flowing area, the settling area is close to an inlet of the settling tank, the second partition plate is arranged in the flowing area of the tank body, and an overflowing gap exists between the second partition plate and the bottom of the tank body; the acid liquor circulating structure is used for connecting the plurality of normal-pressure dump leaching pools and the plurality of acid liquor pools, and the acid liquor circulating structure can guide acid liquor in the acid liquor pools into the corresponding plurality of normal-pressure dump leaching pools. And the settling tank is additionally arranged, so that the impurity content of the acid liquor flowing back to the acid liquor pool is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ore heap leaching, especially to a heap leaching device. BACKGROUND

[0002] At present, when the ore heap leaching of metal ore, cobalt ore and the like is carried out, circulating leaching is needed to improve the extraction rate of metal in the ore, and generally, the acid liquid in the atmospheric pressure heap leaching tank needs to be reflowed to the acid liquid tank, and then the acid liquid is rediverted to the atmospheric pressure heap leaching tank to realize repeated circulating heap leaching. However, the acid liquid reflowed from the atmospheric pressure heap leaching tank to the acid liquid tank often carries mud and sand, which causes the acid liquid tank, the atmospheric pressure heap leaching tank or other pipelines to be blocked, affecting the smooth progress of heap leaching.

[0003] Therefore, it is necessary to provide a heap leaching device to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a heap leaching device, by additionally arranging a sediment tank, the acid liquid reflowed from the atmospheric pressure heap leaching tank to the acid liquid tank is first subjected to mud and sand sedimentation in the sediment tank, and then the acid liquid reflowed to the acid liquid tank has low impurity content, preventing the acid liquid tank, the atmospheric pressure heap leaching tank or other pipelines from being blocked due to the circulating flow of the acid liquid in the acid liquid tank and the atmospheric pressure heap leaching tank.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A heap leaching device is used for atmospheric pressure circulating heap leaching of heap leaching ore, and comprises:

[0007] A plurality of atmospheric pressure heap leaching tanks, each of which is provided with heap leaching ore;

[0008] A plurality of sediment tanks and a plurality of acid liquid tanks, the inlets of the plurality of sediment tanks are in one-to-one correspondence with the plurality of atmospheric pressure heap leaching tanks and are in communication, the outlets of the plurality of sediment tanks are in one-to-one correspondence with the plurality of acid liquid tanks and are in communication, the sediment tank comprises a tank body and first and second partitions arranged in the tank body, the top end of the second partition is higher than the top end of the first partition, the first partition divides the sediment tank into a sedimentation zone and a flow zone, the sedimentation zone is close to the inlet of the sediment tank, the acid liquid in the atmospheric pressure heap leaching tank can overflow into the flow zone after flowing from the inlet to the sedimentation zone, the second partition is arranged in the flow zone of the tank body, and there is an overflow gap between the second partition and the bottom of the tank body;

[0009] An acid liquid circulating structure is used for connecting the plurality of atmospheric pressure heap leaching tanks and the plurality of acid liquid tanks, and can divert the acid liquid in the acid liquid tank to the corresponding plurality of atmospheric pressure heap leaching tanks.

[0010] As preferred, the sediment tank further comprises:

[0011] A sand discharge port, which is communicated with the sedimentation area.

[0012] As preferred, the bottom wall of the atmospheric heap leaching tank is arranged in an inclined manner, and a liquid discharge port is arranged at the bottom of the side wall of the atmospheric heap leaching tank at the low side of the bottom wall of the atmospheric heap leaching tank, and the liquid discharge port is communicated with the inlet of the sediment tank.

[0013] As preferred, a liquid supplement port is arranged on the acid liquid tank, and the acid liquid tank is supplemented with acid liquid through the liquid supplement port.

[0014] As preferred, the acid liquid circulation structure comprises:

[0015] A circulating pump, which is used to guide the acid liquid in the acid liquid tanks to the corresponding atmospheric heap leaching tanks;

[0016] A liquid inlet pipe, one end of which is communicated with the liquid inlet port of the circulating pump, and the other end is connected with a plurality of liquid inlet branch pipes, and the plurality of liquid inlet branch pipes are communicated with the plurality of acid liquid tanks, and the liquid inlet branch pipe is provided with an electromagnetic liquid inlet valve;

[0017] A liquid outlet pipe, one end of which is communicated with the liquid outlet port of the circulating pump, and the other end is connected with a plurality of liquid outlet branch pipes, and the plurality of liquid outlet branch pipes are communicated with the plurality of atmospheric heap leaching tanks, and the liquid outlet branch pipe is provided with an electromagnetic liquid outlet valve;

[0018] A control module, which is electrically connected with the electromagnetic liquid inlet valve, the electromagnetic liquid outlet valve and the circulating pump.

[0019] As preferred, the acid liquid circulation structure further comprises:

[0020] A plurality of detection members, which are used to detect the metal content in the acid liquid in the corresponding acid liquid tanks, and the detection member is electrically connected with the control module.

[0021] As preferred, a plurality of liquid drop holes are arranged on the liquid outlet branch pipe, and a filter member is arranged on the liquid drop hole, and the filter member is used to filter the silt in the acid liquid.

[0022] As preferred, the top end of the atmospheric heap leaching tank is arranged in an open manner, the liquid outlet branch pipe is arranged in a serpentine manner at the top end of the atmospheric heap leaching tank, and the plurality of liquid drop holes are arranged on the side of the liquid outlet branch pipe facing the atmospheric heap leaching tank.

[0023] As preferred, the filter member is a water cap or a soil cloth.

[0024] As preferred, the heap leaching device further comprises:

[0025] A temporary storage tank, in which the heap leaching material is stored;

[0026] A feed pipe, one end of which is communicated with the temporary storage tank, and the other end of which is connected with a plurality of feed branch pipes, and the plurality of feed branch pipes are communicated with the plurality of atmospheric heap leaching ponds correspondingly.

[0027] The present application has the following beneficial effects:

[0028] The heap leaching device comprises a plurality of atmospheric heap leaching ponds, a plurality of sediment tanks, a plurality of acid liquid ponds and an acid liquid circulation structure, the heap leaching material is arranged in the plurality of atmospheric heap leaching ponds, the inlets of the plurality of sediment tanks are communicated with the plurality of atmospheric heap leaching ponds correspondingly, the outlets of the plurality of sediment tanks are communicated with the plurality of acid liquid ponds correspondingly, the sediment tank comprises a tank body and a first partition plate and a second partition plate arranged in the tank body, the top end of the second partition plate is higher than the top end of the first partition plate, the first partition plate divides the sediment tank into a sediment area and a flow area, the sediment area is close to the inlet of the sediment tank, and the acid liquid in the atmospheric heap leaching pond can overflow into the flow area after flowing to the sediment area from the inlet, the second partition plate is arranged in the flow area of the tank body, and there is a flow gap between the second partition plate and the bottom of the tank body; the acid liquid circulation structure is used for connecting the plurality of atmospheric heap leaching ponds and the plurality of acid liquid ponds, and the acid liquid circulation structure can guide the acid liquid in the acid liquid pond to flow into the corresponding plurality of atmospheric heap leaching ponds.

[0029] During the heap leaching, the acid liquid in the plurality of acid liquid ponds is guided to flow into the corresponding plurality of atmospheric heap leaching ponds through the acid liquid circulation structure, the plurality of atmospheric heap leaching ponds are communicated with the inlets of the plurality of sediment tanks correspondingly, the sediment area is close to the inlet of the sediment tank, and the acid liquid can flow into the sediment area of the sediment tank from the atmospheric heap leaching pond after reacting with the heap leaching material and then be deposited, the sludge in the acid liquid is deposited at the bottom of the sediment area, with the gradual inflow of the acid liquid from the inlet, the liquid level of the acid liquid can be higher than the top end of the first partition plate to overflow into the flow area, the flow area is provided with the second partition plate, the top end of the second partition plate is higher than the top end of the first partition plate, so that the overflowed acid liquid can be blocked by the second partition plate to flow out from the flow gap between the second partition plate and the bottom of the tank body and then flow into the acid liquid pond, it can be understood that the second partition plate plays a buffering role, prolongs the time of the acid liquid flowing into the acid liquid pond, and thus the acid liquid stays in the sediment area for a longer time, and the sludge in the acid liquid can be fully deposited; the acid liquid circulation structure guides the acid liquid in the acid liquid pond to flow into the corresponding plurality of atmospheric heap leaching ponds, so that the acid liquid is recycled and drip irrigated, the heap leaching material is circularly leached, the metal in the acid liquid is gradually enriched, and the leaching of the metal is effectively realized without increasing the use amount of the acid liquid.

[0030] The heap leaching device of the utility model adds the sediment tank, the acid liquid refluxing from the atmospheric pressure heap leaching pool to the acid liquid pool is firstly deposited in the sediment tank, and then the impurity content in the acid liquid flowing back to the acid liquid pool is low, and the acid liquid pool or the atmospheric pressure heap leaching pool or other pipeline is prevented from being blocked by the circulation of the acid liquid in the acid liquid pool and the atmospheric pressure heap leaching pool. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the schematic diagram of the heap leaching device provided by the utility model;

[0032] Figure 2 It is the sectional view schematic diagram of the sediment tank provided by the utility model;

[0033] Figure 3 It is the sectional view schematic diagram of the atmospheric pressure heap leaching pool provided by the utility model.

[0034] In the drawing:

[0035] 1, atmospheric pressure heap leaching pool;

[0036] 2, sediment tank;21, tank body;22, first baffle;23, second baffle;24, inlet;25, outlet;26, sediment area;27, flow area;28, overflow gap;29, sand discharge port;

[0037] 3, acid liquid pool;

[0038] 41, circulating pump;42, liquid inlet pipe;421, electromagnetic liquid inlet valve;43, liquid outlet pipe;431, liquid outlet branch pipe;432, electromagnetic liquid outlet valve;44, detection piece. DETAILED DESCRIPTION

[0039] The utility model will be further explained in detail in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawing, not all structures.

[0040] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0041] In the utility model, unless otherwise expressly provided and limited, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0042] In the description of the present embodiment, the terms "upper", "lower", "right", "left", "horizontal", "vertical", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0043] At present, when the metal ore, cobalt ore and other ore materials are subjected to heap leaching, circulating leaching is needed to improve the extraction rate of metals in the ore materials, and generally, the acid liquid in the atmospheric pressure heap leaching tank needs to be reflowed to the acid liquid tank, and then the acid liquid is reflowed to the atmospheric pressure heap leaching tank to realize repeated circulating heap leaching. However, the acid liquid reflowed from the atmospheric pressure heap leaching tank to the acid liquid tank often carries mud and sand, causing the acid liquid tank or the atmospheric pressure heap leaching tank or other pipelines to be blocked, affecting the smooth progress of heap leaching.

[0044] In order to solve the above problems, as shown in the Figures 1-3 The utility model provides a heap leaching device for atmospheric pressure circulating heap leaching of heap leaching ore materials, which comprises a plurality of atmospheric pressure heap leaching tanks 1, a plurality of sediment tanks 2, a plurality of acid liquid tanks 3 and an acid liquid circulating structure. The atmospheric pressure heap leaching tanks 1 are provided with heap leaching ore materials. The inlets 24 of the sediment tanks 2 are in one-to-one correspondence with the atmospheric pressure heap leaching tanks 1. The outlets 25 of the sediment tanks 2 are in one-to-one correspondence with the acid liquid tanks 3. The sediment tank 2 comprises a tank body 21 and a first partition plate 22 and a second partition plate 23 arranged in the tank body 21. The top end of the second partition plate 23 is higher than the top end of the first partition plate 22. The first partition plate 22 divides the sediment tank 2 into a sedimentation zone 26 and a flow zone 27. The sedimentation zone 26 is close to the inlet 24 of the sediment tank 2. The acid liquid in the atmospheric pressure heap leaching tank 1 can overflow from the sedimentation zone 26 to the flow zone 27 after flowing from the inlet 24 to the sedimentation zone 26. The second partition plate 23 is arranged in the flow zone 27 of the tank body 21, and there is an overflow gap 28 between the second partition plate 23 and the bottom of the tank body 21. The acid liquid circulating structure is used to connect the atmospheric pressure heap leaching tanks 1 and the acid liquid tanks 3. The acid liquid circulating structure can guide the acid liquid in the acid liquid tank 3 to the corresponding atmospheric pressure heap leaching tanks 1.

[0045] When heap leaching is performed, the acid liquid in the acid liquid pool 3 is first guided to the corresponding number of atmospheric heap leaching pools 1 through the acid liquid circulation structure. Since the number of atmospheric heap leaching pools 1 and the number of inlets 24 of the sedimentation tank 2 are in one-to-one correspondence, and the sedimentation area 26 is close to the inlet 24 of the sedimentation tank 2, the acid liquid can flow from the atmospheric heap leaching pool 1 to the sedimentation area 26 of the sedimentation tank 2 after reacting with the heap leaching ore, and then be precipitated. The sludge in the acid liquid is precipitated to the bottom of the sedimentation area 26. As the acid liquid gradually flows into the inlet 24, the liquid level of the acid liquid can be higher than the top end of the first partition plate 22 to overflow to the flow area 27. The flow area 27 is provided with a second partition plate 23, and the top end of the second partition plate 23 is higher than the top end of the first partition plate 22, so that the overflowed acid liquid can be blocked by the second partition plate 23 to flow out from the overflow gap 28 between the second partition plate 23 and the bottom of the tank body 21, and then flow out from the outlet 25 to the acid liquid pool 3. It can be understood that the second partition plate 23 plays a buffering role, prolongs the time for the acid liquid to flow to the acid liquid pool 3, and thus the acid liquid stays in the sedimentation area 26 for a longer time, so that the sludge in the acid liquid can be fully precipitated. The acid liquid circulation structure guides the acid liquid in the acid liquid pool 3 to the corresponding number of atmospheric heap leaching pools 1, thereby realizing the cyclic drip irrigation of the acid liquid and the cyclic leaching of the heap leaching ore, so that the metal in the acid liquid is gradually enriched, and the leaching of the metal is effectively realized without increasing the use amount of the acid liquid.

[0046] The heap leaching device in the embodiment adds the sedimentation tank 2, so that the acid liquid flowing back to the acid liquid pool 3 from the atmospheric heap leaching pool 1 is first subjected to sludge precipitation in the sedimentation tank 2, thereby reducing the impurity content in the acid liquid flowing back to the acid liquid pool 3, and preventing the acid liquid from causing the acid liquid pool 3 or the atmospheric heap leaching pool 1 or other pipelines to be blocked due to the circulation of the acid liquid in the acid liquid pool 3 and the atmospheric heap leaching pool 1.

[0047] It can be understood that the number of acid liquid pools 3 and the number of sedimentation tanks 2 are the same as the number of atmospheric heap leaching pools 1, and the specific number is determined according to actual needs, which is not limited in the embodiment.

[0048] Specifically, as shown in Figure 2 The sedimentation tank 2 further includes a sludge discharge port 29 which is in communication with the sedimentation area 26. The sludge discharge port 29 is opened regularly to discharge the sludge in the sedimentation area 26, so as to prevent the excessive accumulation of sludge in the sedimentation tank 2 and prolong the service life of the sedimentation tank 2.

[0049] Specifically, as shown in Figure 3As shown, the bottom wall of the atmospheric heap leaching tank 1 is inclined, and the bottom of the side wall of the atmospheric heap leaching tank 1 at the low side of the bottom wall is provided with a liquid outlet, which is communicated with the inlet 24 of the sediment tank 2. After the acid solution enters the atmospheric heap leaching tank 1 and reacts with the heap leaching material, it flows into the sediment tank 2 through the liquid outlet under the action of gravity. It should be noted that the liquid outlet of the atmospheric heap leaching tank 1 and the inlet 24 of the sediment tank 2 can be communicated by a pipeline, or can be communicated by other means, which is not limited in the embodiment.

[0050] Specifically, the acid solution tank 3 is provided with a liquid supplementing port for supplementing acid solution into the acid solution tank 3, which is simple and convenient.

[0051] Specifically, as shown in the figure, Figure 1 The acid solution circulation structure includes a circulating pump 41, an inlet pipe 42, an outlet pipe 43, and a control module. The circulating pump 41 is used to guide the acid solution in the acid solution tank 3 to the corresponding atmospheric heap leaching tank 1; one end of the inlet pipe 42 is communicated with the inlet of the circulating pump 41, and the other end of the inlet pipe 42 is connected with a plurality of inlet branch pipes corresponding to the plurality of acid solution tanks 3, and the inlet branch pipes are provided with electromagnetic inlet valves 421; one end of the outlet pipe 43 is communicated with the outlet of the circulating pump 41, and the other end of the outlet pipe 43 is connected with a plurality of outlet branch pipes 431, and the plurality of outlet branch pipes 431 are provided with electromagnetic outlet valves 432; the control module is electrically connected with the electromagnetic inlet valves 421, the electromagnetic outlet valves 432, and the circulating pump 41, and can control the opening and closing of each electromagnetic inlet valve 421 and each electromagnetic outlet valve 432, and can also control the start and stop of the circulating pump 41.

[0052] The acid solution circulation structure drives the circulating pump 41, and uses the inlet pipe 42 and the outlet pipe 43 and the electromagnetic inlet valves 421 and the electromagnetic outlet valves 432 thereon to accurately guide the acid solution in the acid solution tank 3 to the corresponding atmospheric heap leaching tank 1, so as to realize the re-drip irrigation of the acid solution in the acid solution tank 3 to the atmospheric heap leaching tank 1, and realize the recycling use of the acid solution and the efficient extraction of the metal.

[0053] It should be noted that the control module is a conventional controller on the market, so its detailed structure, circuit connection relationship and control principle will not be described again.

[0054] In the embodiment, as shown in the figure, Figure 1As shown, the acid liquid circulation structure further comprises a plurality of detection members 44 for detecting the metal content in the acid liquid in the corresponding plurality of acid liquid pools 3, and the detection members 44 are electrically connected to the control module. The metal content in the acid liquid in each acid liquid pool 3 is monitored in real time by the detection members 44, and the detection data is fed back to the control module. The control module adjusts the on-off state of each electromagnetic liquid inlet valve 421 and each electromagnetic liquid outlet valve 432 according to the detection data, so as to re-irrigate the acid liquid in a certain acid liquid pool 3 into a certain atmospheric leaching pool 1, thereby achieving the recycling use of the acid liquid and the efficient extraction of the metal.

[0055] In a specific implementation process, the metal content in each acid liquid pool 3 detected by the detection member 44 is ranked from high to low to form a first acid liquid, a second acid liquid, …, an n-th acid liquid, and a first atmospheric leaching pool, a second atmospheric leaching pool, …, an n-th atmospheric leaching pool corresponding thereto; and then the on-off state of each electromagnetic liquid inlet valve 421 and each electromagnetic liquid outlet valve 432 is adjusted by the control module to guide the n-th acid liquid into the n-th atmospheric leaching pool, wherein the first acid liquid with the highest metal content is guided into the n-th atmospheric leaching pool. The higher the metal content concentration in the acid liquid, the less the acid content in the acid liquid, and the less the residual metal content in the atmospheric leaching pool 1 corresponding to the acid liquid. Therefore, the acid liquid with lower metal content is guided into the atmospheric leaching pool 1 with more residual metal content, and the acid liquid with higher metal content is guided into the atmospheric leaching pool 1 with less residual metal content, which can on the one hand fully utilize the acid liquid and reduce the waste of the acid liquid, and on the other hand reduce the difference in leaching effect between each atmospheric leaching pool 1, so that the metal content in the finally discharged acid liquid is close and there is no large difference to affect the subsequent processing process.

[0056] Specifically, the detection member 44 is fixed on the inner wall of the liquid inlet branch pipe for detecting the nickel content of the liquid in the liquid inlet branch pipe, i.e. the nickel content of the acid liquid in the acid liquid pool 3. It should be noted that the detection member 44 is a water quality on-line analyzer which measures the metal content in the acid liquid based on spectrophotometry.

[0057] Specifically, a plurality of liquid drop holes are formed on the liquid outlet branch pipe 431, and a filter member is arranged on each liquid drop hole. The filter member is used to filter the sand in the acid liquid. The filter member can filter the acid liquid again to prevent the sand from entering the acid liquid pool 3. After the acid liquid is filtered, it can drop into the atmospheric leaching pool 1 drop by drop, so as to ensure that the acid liquid can fully contact with the heap leaching ore in the atmospheric leaching pool 1, thereby increasing the reaction area and reaction time, improving the reaction efficiency, and avoiding the waste of acid liquid due to excessive supply or insufficient reaction.

[0058] Specifically, the filter is a water cap or a soil cloth. When the filter is a water cap, the water cap is installed at the drip hole, and the water cap can allow the acid liquid to pass through while preventing the passage of the silt, so as to achieve the purpose of filtering the silt; when the filter is a soil cloth, the soil cloth is wrapped on the outer wall of the liquid outlet branch pipe 431 and covers the drip hole, at this time, the acid liquid can flow out through the soil cloth, and the silt is blocked by the soil cloth.

[0059] In the embodiment, as shown in the drawings, the top end of the atmospheric leaching tank 1 is open, the liquid outlet branch pipe 431 is distributed in a serpentine shape at the top end of the atmospheric leaching tank 1, and a plurality of drip holes are arranged on the side of the liquid outlet branch pipe 431 facing the atmospheric leaching tank 1. The serpentine liquid outlet branch pipe 431 helps the uniform distribution of the acid liquid at the top end of the atmospheric leaching tank 1, so that the acid liquid can more evenly cover the leaching ore material in the atmospheric leaching tank 1 when falling into the atmospheric leaching tank 1, thereby improving the leaching efficiency. Figure 3

[0060] Specifically, the leaching device further comprises a temporary storage tank and a material conveying pipe, the leaching ore material is temporarily stored in the temporary storage tank, one end of the material conveying pipe is in communication with the temporary storage tank, the other end of the material conveying pipe is connected with a plurality of material conveying branch pipes, and the plurality of material conveying branch pipes are in communication with the plurality of atmospheric leaching tanks 1, respectively, so as to convey the leaching ore material into the plurality of atmospheric leaching tanks 1.

[0061] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.​

Claims

1. A heap leaching apparatus, characterised in that, The heap leaching device is used for atmospheric cyclic heap leaching of heap leaching ore, and the heap leaching device comprises: A plurality of atmospheric heap leaching tanks (1) are provided with the heap leaching ore; A plurality of sedimentation tanks (2) and a plurality of acid liquid tanks (3), the inlets (24) of the plurality of sedimentation tanks (2) are in one-to-one correspondence with the plurality of atmospheric heap leaching tanks (1) and are communicated, the outlets (25) of the plurality of sedimentation tanks (2) are in one-to-one correspondence with the plurality of acid liquid tanks (3) and are communicated, the sedimentation tank (2) comprises a tank body (21) and first and second partitions (22) and (23) arranged in the tank body (21), the top end of the second partition (23) is higher than the top end of the first partition (22), the first partition (22) divides the sedimentation tank (2) into a sedimentation zone (26) and a flow zone (27), the sedimentation zone (26) is close to the inlet (24) of the sedimentation tank (2), and the acid liquid in the atmospheric heap leaching tank (1) can overflow into the flow zone (27) after flowing from the inlet (24) to the sedimentation zone (26); the second partition (23) is arranged in the flow zone (27) of the tank body (21), and there is an overflow gap (28) between the second partition (23) and the bottom of the tank body (21); An acid liquid circulation structure is used for connecting the plurality of atmospheric heap leaching tanks (1) and the plurality of acid liquid tanks (3), and can guide the acid liquid in the acid liquid tank (3) into the corresponding plurality of atmospheric heap leaching tanks (1).

2. A heap leaching arrangement according to claim 1, characterized in that The sedimentation tank (2) further comprises: A sand discharge port (29) in communication with the sedimentation zone (26).

3. A heap leaching apparatus according to claim 1, characterised in that, The bottom wall of the atmospheric heap leaching tank (1) is inclined, a liquid discharge port is arranged at the bottom of the side wall of the atmospheric heap leaching tank (1) on the low side of the bottom wall of the atmospheric heap leaching tank (1), and the liquid discharge port is in communication with the inlet (24) of the sedimentation tank (2).

4. A heap leaching apparatus according to claim 1, characterised in that, The acid liquid tank (3) is provided with a liquid supplementing port for supplementing acid liquid into the acid liquid tank (3).

5. A heap leaching apparatus according to claim 1, characterised in that, The acid liquid circulation structure comprises: A circulating pump (41) for guiding the acid liquid in the plurality of acid liquid tanks (3) into the corresponding plurality of atmospheric heap leaching tanks (1); An inlet pipe (42) having one end in communication with an inlet of the circulating pump (41) and the other end connected with a plurality of inlet branch pipes, the plurality of inlet branch pipes being in communication with the plurality of acid liquid tanks (3) correspondingly, and the inlet branch pipe being provided with an electromagnetic inlet valve (421); An outlet pipe (43) having one end in communication with an outlet of the circulating pump (41) and the other end connected with a plurality of outlet branch pipes (431), the plurality of outlet branch pipes (431) being in communication with the plurality of atmospheric heap leaching tanks (1), and the outlet branch pipe (431) being provided with an electromagnetic outlet valve (432); A control module electrically connected with the electromagnetic inlet valve (421), the electromagnetic outlet valve (432) and the circulating pump (41).

6. A heap leaching arrangement according to claim 5, characterised in that, The acid liquid circulation structure further comprises: A plurality of detection members (44) are arranged to detect the metal content in the acid liquid in the corresponding plurality of acid liquid pools (3), and the detection members (44) are electrically connected to the control module.

7. A heap leaching apparatus according to claim 5, characterised in that, A plurality of drip holes are formed in the liquid outlet branch pipe (431), and a filter member is arranged on the drip holes to filter the silt in the acid liquid.

8. A heap leaching arrangement according to claim 7, characterised in that, The top end of the atmospheric heap leaching pool (1) is open, the liquid outlet branch pipe (431) is in a serpentine distribution at the top end of the atmospheric heap leaching pool (1), and a plurality of drip holes are arranged on the side of the liquid outlet branch pipe (431) facing the atmospheric heap leaching pool (1).

9. A heap leaching apparatus according to claim 7, characterised in that, The filter member is a water cap or earthwork cloth.

10. A heap leaching arrangement according to any one of claims 1-9, characterized in that, The heap leaching device further comprises: A temporary storage tank, in which the heap leaching ore is stored; A material conveying pipe, one end of which is in communication with the temporary storage tank, and the other end of which is connected with a plurality of material conveying branch pipes, and the plurality of material conveying branch pipes are in communication with the plurality of atmospheric heap leaching pools (1) correspondingly.

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