Activated carbon adding device and cyanidation leaching equipment

Abstract

The utility model provides an activated carbon adding device and cyanidation leaching equipment. The activated carbon adding device comprises a container and a first filter screen, the container is provided with an inlet, a water outlet and a carbon outlet, the inlet is higher than the water outlet and the carbon outlet and used for receiving a mixture of water and activated carbon, the water outlet and the carbon outlet are located at the bottom of the container, the water outlet is provided with the first filter screen, and the first filter screen is used for intercepting activated carbon in the container. The water outlet is used for discharging water in the container, and the carbon outlet is used for discharging activated carbon or a mixture of the activated carbon and the water in the container. The activated carbon adding device disclosed by the embodiment of the utility model can be used for realizing dehydration separation and storing activated carbon so as to add the activated carbon, and is small in occupied space and cost and convenient to manufacture and install.

Description

Technical Field

[0001] This utility model relates to the field of material feeding equipment, specifically to an activated carbon adding device and a cyanide leaching device. Background Technology

[0002] In the cyanide leaching process for gold extraction, activated carbon is first washed with water to remove smaller powdery activated carbon, retaining larger granular activated carbon. The mixture of granular activated carbon and water is then pumped to a separation device located at the leaching tank for dehydration. The dehydrated granular activated carbon is stored in a container for controlled addition to the leaching tank. Therefore, related technologies require at least a dehydration separation device and a storage container at the leaching tank, which occupies a large space and incurs high costs. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose an activated carbon addition device and a cyanide leaching device using the activated carbon addition device.

[0005] The activated carbon adding device according to this embodiment of the utility model includes:

[0006] A container and a first filter screen are provided. The container has an inlet, a drain outlet, and a carbon outlet. The inlet is higher than the drain outlet and the carbon outlet and is used to receive a mixture of water and activated carbon. The drain outlet and the carbon outlet are located at the bottom of the container. The drain outlet is provided with a first filter screen, which is used to intercept the activated carbon in the container so that the drain outlet can be used to discharge water in the container. The carbon outlet is used to discharge the activated carbon or a mixture of activated carbon and water in the container.

[0007] The activated carbon adding device of this embodiment receives a mixture of water and activated carbon through an inlet. The activated carbon in the mixture is intercepted in the container by a first filter screen, while the water in the mixture is discharged from a drain outlet, thereby separating the activated carbon and water. This achieves dehydration and separation, and allows for the storage of activated carbon. Furthermore, because the water in the mixture is discharged from the drain outlet, more activated carbon can be stored in the container. The activated carbon in the container, or the mixture of activated carbon and residual water, is discharged through a carbon outlet for activated carbon addition. Simultaneously, the activated carbon adding device has a small footprint and low cost, making it easy to manufacture and install.

[0008] In some embodiments, the activated carbon adding device further includes a second filter screen, and the top of the container is provided with an overflow port, the overflow port being provided with the second filter screen, the second filter screen being used to intercept activated carbon in the container.

[0009] In some embodiments, the mesh size of the first filter and the second filter is 1mm to 1.5mm.

[0010] In some embodiments, the container includes an upper part and a lower part, the upper part being connected to the upper end of the lower part, the cross-sectional area of ​​the upper part being constant along the vertical direction, the cross-sectional area of ​​the lower part decreasing from top to bottom, the inlet and the overflow outlet being located in the upper part, and the drain outlet and the carbon outlet being located in the lower part.

[0011] In some embodiments, the carbon outlet is located at the lowest position of the lower part, and the distance between the drain outlet and the carbon outlet is 0mm to 50mm.

[0012] In some embodiments, the activated carbon adding device further includes support legs disposed on the outer wall of the upper part, and there are multiple support legs arranged at intervals along the circumference of the upper part.

[0013] In some embodiments, the activated carbon adding device further includes a flushing pipe, the inlet end of which is located outside the container, the outlet end of which is located inside the container, and the outlet of which is oriented toward the carbon outlet for flushing water toward the carbon outlet.

[0014] In some embodiments, the distance between the outlet of the flushing pipe and the carbon outlet is 200mm to 300mm.

[0015] In some embodiments, the water pressure of the flushing pipe is 0.2 MPa to 0.3 MPa.

[0016] In some embodiments, the container is provided with a measuring scale.

[0017] The cyanide leaching apparatus of this utility model embodiment includes:

[0018] The cyanide leaching tank and the activated carbon adding device described in any of the above embodiments, wherein the activated carbon adding device is located above the cyanide leaching tank, and the carbon outlet is connected to the cyanide leaching tank and can be opened and closed in a controlled manner.

[0019] The cyanide leaching equipment of this utility model adds activated carbon to the cyanide leaching tank through the activated carbon adding device of this utility model, so as to facilitate the smooth implementation of the cyanide leaching process. Since the activated carbon adding device has a small footprint and low cost and is easy to install, the cyanide leaching equipment is easy to install and operate and has a low construction cost. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the activated carbon addition device according to an embodiment of the present invention;

[0021] Figure 2 This is a top view of the activated carbon adding device according to an embodiment of the present invention.

[0022] Figure label:

[0023] 1. Container; 11. Inlet; 12. Drain; 13. Carbon outlet; 14. Overflow outlet; 15. Upper part; 16. Lower part; 2. First filter screen; 3. Second filter screen; 4. Support leg; 5. Flushing pipe. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0025] The following is for reference. Figure 1 and Figure 2 This invention describes an activated carbon addition device and a cyanide leaching equipment according to embodiments of the present invention.

[0026] like Figure 1 and Figure 2 As shown, the activated carbon adding device of this utility model embodiment includes a container 1 and a first filter screen 2.

[0027] Container 1 is provided with an inlet 11, a drain outlet 12, and a carbon outlet 13. Inlet 11 is higher than drain outlet 12 and carbon outlet 13, and is used to receive a mixture of water and activated carbon. Figure 1 As shown, the inlet 11 is preferably, but not limited to, located at the top of the container 1.

[0028] The drain outlet 12 and the carbon outlet 13 are located at the bottom of the container 1. The drain outlet 12 is equipped with a first filter screen 2, which is used to intercept the activated carbon in the container 1 so that the drain outlet 12 can be used to discharge the water in the container 1.

[0029] The carbon outlet 13 is used to discharge activated carbon or a mixture of activated carbon and water from container 1. Specifically, when drain outlet 12 can completely drain the water from the container, carbon outlet 13 is used to discharge the activated carbon from container 1. When drain outlet 12 cannot completely drain the water from the container, for example, when some water remains in container 1 after drain outlet 12 has drained, or when carbon outlet 13 is opened before drain outlet 12 has completely drained the water, carbon outlet 13 is used to discharge the mixture of activated carbon and water.

[0030] Carbon outlet 13 is mainly used to discharge activated carbon for addition. Whether water is discharged along with the activated carbon depends on the actual process of using the activated carbon. For example, when adding activated carbon to equipment implementing a cyanide leaching process, the addition of water along with the activated carbon will not affect the implementation of the cyanide leaching process.

[0031] It should be noted that the first filter screen 2 intercepts activated carbon while also sieving it. Activated carbon with a size smaller than the mesh size of the first filter screen 2 will also be discharged with the water from the drain outlet 12. Therefore, by adjusting the mesh size of the first filter screen 2, activated carbon particles of different sizes can be sieved and retained. This allows smaller and unusable activated carbon particles or powder to be discharged with the water, while larger activated carbon particles are intercepted and retained in the container 1.

[0032] The activated carbon adding device of this embodiment receives a mixture of water and activated carbon through an inlet. The activated carbon in the mixture is intercepted in the container by a first filter screen, while the water in the mixture is discharged from a drain outlet, thereby separating the activated carbon and water. This achieves dehydration and separation, and allows for the storage of activated carbon. Furthermore, because the water in the mixture is discharged from the drain outlet, more activated carbon can be stored in the container. The activated carbon in the container, or the mixture of activated carbon and residual water, is discharged through a carbon outlet for activated carbon addition. Simultaneously, the activated carbon adding device has a small footprint and low cost, making it easy to manufacture and install.

[0033] In some embodiments, the activated carbon adding device of this utility model further includes a second filter 3, and the top of the container 1 is provided with an overflow port 14, the overflow port 14 is provided with a second filter 3, and the second filter 3 is used to intercept the activated carbon in the container 1.

[0034] like Figure 1 and Figure 2 As shown, the top of the container 1 is provided with an overflow port 14. The overflow port 14 can be lower than the inlet 11, flush with the inlet 11, or higher than the inlet 11, and preferably lower than the inlet 11.

[0035] The overflow port 14 is equipped with a second filter 3, which is used to intercept activated carbon in the container 1. The mesh size of the second filter 3 is preferably, but not limited to, the same as that of the first filter 2.

[0036] The water in the container is not limited to being discharged through the drain outlet 12. When the mixture of water and activated carbon in the container 1 reaches the height of the overflow outlet 14, the water in the container 1 can also overflow through the overflow outlet 14 to prevent the mixture of water and activated carbon from overflowing uncontrollably from the top of the container 1. At the same time, the second filter screen 3 at the overflow outlet 14 also intercepts the activated carbon to intercept and retain activated carbon particles larger than the mesh size of the second filter screen 3 in the container 1, so as to prevent the loss of the required activated carbon.

[0037] In some embodiments, the mesh size of the first filter 2 and the second filter 3 is 1mm to 1.5mm. For example, 1mm, 1.2mm, and 1.5mm.

[0038] This allows smaller, unusable activated carbon particles or powder to be discharged with the water, while larger activated carbon particles are intercepted and retained in container 1.

[0039] In some embodiments, the container 1 includes an upper part 15 and a lower part 16. The upper part 15 is connected to the upper end of the lower part 16. The cross-sectional area of ​​the upper part 15 is constant in the vertical direction, and the cross-sectional area of ​​the lower part 16 decreases from top to bottom. The inlet 11 and the overflow outlet 14 are both located in the upper part 15, and the drain outlet 12 and the carbon outlet 13 are both located in the lower part 16.

[0040] like Figure 1 and Figure 2 As shown, container 1 includes an upper part 15 and a lower part 16, with the upper part 15 connected to the upper end of the lower part 16.

[0041] The cross-sectional area of ​​the upper part 15 is constant along the vertical direction, preferably but not limited to being cylindrical. This facilitates fixation and allows the container 1 to have a larger volume.

[0042] The cross-sectional area of ​​the lower part 16 decreases from top to bottom, preferably but not limited to a cone or frustum cone shape. This guides the activated carbon settling in the container 1, ensuring that the activated carbon always deposits at the lowest point of the lower part 16, thus facilitating its discharge.

[0043] The inlet 11 is located in the upper part 15 to avoid the received mixture of water and activated carbon disturbing the activated carbon deposited at the bottom of the container 1. Preferably, the top of the upper part 15 is open to form the inlet 11.

[0044] The overflow port 14 is located on the upper part 15. Preferably, the overflow port 14 is located on the top side wall of the upper part 15. The second filter screen 3 is preferably, but not limited to, located on the inner wall of the upper part 15 and is arranged opposite to the overflow port 14.

[0045] The carbon outlet 13 is located in the lower part 16 so that the activated carbon is guided to the carbon outlet 13 through the inclined wall of the lower part 16, thereby facilitating the discharge of the activated carbon.

[0046] The drain outlet 12 is located in the lower part 16 to drain more water, thereby allowing the container 1 to hold more activated carbon. The first filter screen 2 is preferably, but not limited to, located on the inner wall surface of the lower part 16 and is arranged opposite to the drain outlet 12.

[0047] It is understood that the entrance is not limited to being formed by an open top at the top; in other embodiments, the top at the top is closed and has a port forming the entrance.

[0048] In some embodiments, the carbon outlet 13 is located at the lowest position of the lower part 16, and the distance between the drain outlet 12 and the carbon outlet 13 is 0 mm to 50 mm.

[0049] like Figure 1 and Figure 2 As shown, the carbon outlet 13 is located at the lowest position of the lower part 16, so that the inclined wall of the lower part 16 can better guide the activated carbon to the carbon outlet 13, and enable the carbon outlet 13 to discharge all the activated carbon in the container 1, avoiding the waste caused by the activated carbon remaining in the dead corner of the container 1.

[0050] The distance between the drain outlet 12 and the carbon outlet 13 is 0mm to 50mm. The drain outlet 12 is set as close as possible to the carbon outlet 13, so as to be as close as possible to the lowest position of the lower part 16, thereby draining as much water as possible from the container 1 and allowing the container 1 to hold more activated carbon.

[0051] It should be noted that the distance between the drain outlet 12 and the carbon outlet 13 refers to the shortest distance between the edge of the drain outlet 12 and the edge of the carbon outlet 13.

[0052] In some embodiments, the activated carbon adding device of this utility model further includes a support leg 4, which is disposed on the outer wall of the upper part 15. There are multiple support legs 4, which are arranged at intervals along the circumference of the upper part 15.

[0053] like Figure 1 and Figure 2 As shown, the support leg 4 is located on the outer wall surface of the upper part 15, preferably but not limited to being located at the middle position of the upper part 15 along the vertical direction. There are multiple support legs 4, preferably but not limited to four. The four support legs 4 are arranged at intervals along the circumference of the upper part 15, preferably but not limited to being arranged at equal intervals.

[0054] The support leg 4 can support and fix the container 1.

[0055] In some embodiments, the activated carbon adding device of this utility model further includes a flushing pipe 5, the inlet end of which is located outside the container 1, the outlet end of which is located inside the container 1, and the outlet of which is arranged toward the carbon outlet 13 for flushing water toward the carbon outlet 13.

[0056] like Figure 1 and Figure 2 As shown, the inner wall of container 1 is connected to a flushing pipe 5. The flushing pipe 5 extends vertically and has an inlet end and an outlet end that are arranged opposite to each other. The inlet end is the upper end of the flushing pipe 5, and the outlet end is the lower end of the flushing pipe 5. The upper end of the flushing pipe 5 is located at the top of container 1 and extends to the outside of container 1 for connecting to a water supply device. The lower end of the flushing pipe 5 is located at the bottom inside container 1, and the outlet of the flushing pipe 5 is set towards the carbon outlet 13 for flushing water towards the carbon outlet 13. The water discharged through the outlet of the flushing pipe 5 drives the deposited activated carbon to flow and is discharged from the carbon outlet 13, thereby ensuring that the activated carbon is smoothly discharged from the carbon outlet 13. At this time, the carbon outlet 13 is used to discharge the mixture of activated carbon and water.

[0057] The outlet of the flushing pipe 5 and the drain outlet 12 are preferably, but not limited to, symmetrically arranged along the vertical center line of the container 1, so as to prevent the water discharged from the outlet of the flushing pipe 5 from being discharged from the drain outlet 12 and thus unable to drive the activated carbon to flow to the carbon outlet 13.

[0058] In some embodiments, the distance between the outlet of the flushing pipe 5 and the carbon outlet 13 is 200mm to 300mm, such as 200mm, 250mm, or 300mm. This ensures that the water discharged from the outlet of the flushing pipe 5 can smoothly carry the activated carbon to the carbon outlet 13, and ensures that the activated carbon can be smoothly discharged from the carbon outlet 13.

[0059] In some embodiments, the water pressure in the flushing pipe 5 is 0.2 MPa to 0.3 MPa, for example, 0.2 MPa, 0.25 MPa, or 0.3 MPa. This is to better drive the activated carbon flow and flush it to the carbon outlet 13 for discharge.

[0060] In some embodiments, container 1 is provided with a measuring scale ( Figure 1 and Figure 2 (Not shown in the image).

[0061] Specifically, the metering scale is set vertically. The amount of activated carbon stored in container 1 can be determined by the metering scale. On the one hand, it is used to determine the flow rate of activated carbon discharged from carbon outlet 13, and on the other hand, it is used to determine whether a mixture of water and activated carbon needs to be supplied to container 1.

[0062] The measuring scale can be set on the inner wall of container 1 and observed through the opening formed by the top of container 1. Alternatively, at least part of the wall of container 1 can be made transparent and the measuring scale can be set on the transparent wall of container 1 for observation.

[0063] In some embodiments, the activated carbon adding device of this utility model further includes an ejector, which is disposed at the bottom of the container 1 and forms a carbon outlet 13.

[0064] like Figure 1 and Figure 2 As shown, the cyanide leaching equipment of this utility model embodiment includes a cyanide leaching tank and an activated carbon addition device of this utility model embodiment.

[0065] The activated carbon addition device is located in the cyanide leaching tank. Figure 1 and Figure 2 Above (not shown), carbon outlet 13 is connected to cyanide leaching tank and can be opened and closed in a controlled manner.

[0066] Specifically, the top of the cyanide leaching tank can be open, and the activated carbon addition device is located above the cyanide leaching tank. The carbon outlet 13 is positioned opposite the open top of the cyanide leaching tank and is equipped with an opening and closing valve. When the opening and closing valve is opened, the carbon outlet 13 discharges activated carbon and it falls into the cyanide leaching tank, thereby realizing the addition of activated carbon.

[0067] The top of the cyanide leaching tank can also be sealed. The activated carbon addition device is located above the cyanide leaching tank. The carbon outlet 13 is connected to the cyanide leaching tank through a pipeline equipped with an opening and closing valve. When the opening and closing valve is opened, the carbon outlet 13 discharges activated carbon into the cyanide leaching tank through the pipeline, thereby realizing the addition of activated carbon.

[0068] The cyanide leaching tank is preferably, but not limited to, a cyanide leaching stirred tank. The cyanide leaching tank is preferably, but not limited to, used for gold ore beneficiation.

[0069] The cyanide leaching equipment of this utility model adds activated carbon to the cyanide leaching tank through the activated carbon adding device of this utility model, so as to facilitate the smooth implementation of the cyanide leaching process. Since the activated carbon adding device has a small footprint and low cost and is easy to install, the cyanide leaching equipment is easy to install and operate and has a low construction cost.

[0070] Meanwhile, because the first filter screen 2 and the second filter screen 3 have a sieving effect on the activated carbon, small activated carbon particles or powder that cannot be recovered for gold extraction are discharged with the water through the drain outlet 12 and the overflow outlet 14, and will not be stored in the container 1, nor will they be discharged into the cyanide leaching tank through the carbon outlet 13, thus avoiding any impact on gold extraction. Large activated carbon particles that can be recovered for gold extraction are intercepted and stored in the container 1 by the first filter screen 2 and the second filter screen 3, and are then discharged into the cyanide leaching tank through the carbon outlet 13, thereby ensuring successful gold extraction.

[0071] In some embodiments, the cyanide leaching equipment further includes a water washing device for washing and screening activated carbon and removing small activated carbon particles or powder. The water washing device is connected to the inlet 11 of the activated carbon adding device through a pipeline to supply the mixture of water and activated carbon to the activated carbon adding device. At this time, the first filter screen 2 and the second filter screen 3 are used to intercept large activated carbon particles and screen the activated carbon a second time to ensure that small activated carbon particles or powder are not discharged into the cyanide leaching tank.

[0072] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0073] Furthermore, the terms "first" and "second" are used only for distinction and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0074] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0075] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0076] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0077] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An activated carbon adding device, characterized in that, include: A container (1) and a first filter screen (2) are provided. The container (1) is provided with an inlet (11), a drain outlet (12) and a carbon outlet (13). The inlet (11) is higher than the drain outlet (12) and the carbon outlet (13) and is used to receive a mixture of water and activated carbon. The drain outlet (12) and the carbon outlet (13) are located at the bottom of the container (1). The drain outlet (12) is provided with a first filter screen (2) and the first filter screen (2) is used to intercept the activated carbon in the container (1) so that the drain outlet (12) is used to discharge the water in the container (1). The carbon outlet (13) is used to discharge the activated carbon or a mixture of activated carbon and water in the container (1).

2. The activated carbon adding device according to claim 1, characterized in that, It also includes a second filter (3), and the top of the container (1) is provided with an overflow port (14), and the overflow port (14) is provided with the second filter (3), which is used to intercept the activated carbon in the container (1).

3. The activated carbon adding device according to claim 2, characterized in that, The mesh size of the first filter (2) and the second filter (3) is 1mm to 1.5mm.

4. The activated carbon adding device according to claim 2, characterized in that, The container (1) includes an upper part (15) and a lower part (16). The upper part (15) is connected to the upper end of the lower part (16). The cross-sectional area of ​​the upper part (15) is constant in the vertical direction, and the cross-sectional area of ​​the lower part (16) decreases from top to bottom. The inlet (11) and the overflow outlet (14) are both located in the upper part (15), and the drain outlet (12) and the carbon outlet (13) are both located in the lower part (16).

5. The activated carbon adding device according to claim 4, characterized in that, The carbon outlet (13) is located at the lowest position of the lower part (16), and the distance between the drain outlet (12) and the carbon outlet (13) is 0mm to 50mm.

6. The activated carbon adding device according to claim 4, characterized in that, It also includes support legs (4), which are disposed on the outer wall of the upper part (15). There are multiple support legs (4), which are arranged at intervals along the circumference of the upper part (15).

7. The activated carbon adding device according to claim 1, characterized in that, It also includes a flushing pipe (5), the inlet end of which is located outside the container (1), the outlet end of which is located inside the container (1), and the outlet of which is arranged facing the carbon outlet (13) for flushing water toward the carbon outlet (13).

8. The activated carbon adding device according to claim 7, characterized in that, The distance between the outlet of the flushing pipe (5) and the carbon outlet (13) is 200mm to 300mm; and / or The water pressure of the flushing pipe (5) is 0.2MPA to 0.3MPA.

9. The activated carbon adding device according to claim 1, characterized in that, The container (1) is equipped with a measuring scale.

10. A cyanide leaching apparatus, characterized in that, include: The cyanide leaching tank and the activated carbon addition device according to any one of claims 1-9, wherein the activated carbon addition device is disposed above the cyanide leaching tank, and the carbon outlet (13) is connected to the cyanide leaching tank and can be opened and closed in a controlled manner.

Images