An apparatus for directional concentration of precious metals
By designing a spiral chute and switching mechanism, the problems of low separation efficiency and high infrastructure cost of traditional precious metal enrichment equipment are solved, achieving efficient precious metal separation and space saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GRINM RESOURCES & ENVIRONMENT TECH CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-29
Smart Images
Figure CN224293489U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of mineral gravity separation technology, and more specifically, to a device for the directional enrichment of precious metals. Background Technology
[0002] Precious metal enrichment refers to the process of separating precious metals from other minerals in ore using physical or chemical methods, thereby concentrating them in a concentrate. The aim is to increase the grade of precious metals, facilitating subsequent smelting and purification. Mineral processing is the primary step in precious metal enrichment, removing most impurities from the ore and concentrating the precious metals in the concentrate. For example, gravity separation utilizes the density differences of minerals, using gravity to cause precious metal particles to settle, thus achieving enrichment.
[0003] Fabric sluice is a common gravity separation metal enrichment device. Traditional fabric sluices mostly adopt a sloping trough design, which has low separation efficiency. To improve separation efficiency, multiple sluices need to be connected in series, resulting in a large footprint and high infrastructure costs. Utility Model Content
[0004] This application aims to provide a device for targeted enrichment of precious metals, which addresses the problems of low separation efficiency and high infrastructure costs in existing precious metal enrichment devices.
[0005] A device for targeted enrichment of precious metals, comprising a feeder and a beneficiation unit;
[0006] The mineral processing unit includes a sluice, a flushing device, and a discharge device;
[0007] The chute is spiral-shaped and lined with fabric. The inlet end of the chute is connected to the feeder, which is used to intermittently supply ore to the chute at set intervals.
[0008] The flushing device is located above the chute and is used to spray flushing water into the chute;
[0009] The discharge device is located at the outlet end of the chute. The discharge device is provided with a concentrate outlet and a tailings outlet. The discharge device is provided with a switching mechanism inside. The switching mechanism is used to switch the opening and closing state of the concentrate outlet and the tailings outlet to control the flow of the ore discharged from the chute to the concentrate outlet or the tailings outlet.
[0010] The mineral processing unit includes a first working state and a second working state; in the first working state, the feeder discharges ore into the sluice, the tailings outlet is opened, and the concentrate outlet is closed; in the second working state, the feeder stops discharging ore into the sluice, the flushing device sprays flushing water into the sluice, the concentrate outlet is opened, and the tailings outlet is closed.
[0011] Optionally, the switching mechanism includes a baffle and a driving component;
[0012] The outlet end of the chute extends into the interior of the discharge device, and the concentrate outlet and the tailings outlet are located on both sides of the discharge device, respectively; the baffle is rotatably disposed at the outlet end of the chute and is located between the concentrate outlet and the tailings outlet;
[0013] The driving component is connected to the baffle and is used to drive the baffle to rotate to a first working position so that the ore discharged from the chute flows along the baffle to the tailings outlet, or to drive the baffle to rotate to a second working position so that the ore discharged from the chute flows along the baffle to the concentrate outlet.
[0014] Optionally, the middle part of the baffle is rotatably connected to the discharge device, the first end of the baffle is close to the concentrate discharge outlet, and the second end of the baffle is close to the tailings discharge outlet;
[0015] When the baffle is rotated to the first working position, the first end of the baffle is higher than the second end of the baffle, the first end of the baffle blocks the concentrate outlet, and the second end of the baffle leads to the tailings outlet;
[0016] When the baffle is rotated to the second working position, the second end of the baffle is higher than the first end of the baffle, the second end of the baffle blocks the tailings outlet, and the first end of the baffle leads to the concentrate outlet.
[0017] Optionally, the width of the baffle is greater than or equal to the width of the outlet end of the chute.
[0018] Optionally, the driving component includes a hydraulic cylinder, the cylinder body of which is installed in the discharge device, and the end of the piston rod of the hydraulic cylinder is connected to the end of the baffle.
[0019] Optionally, the feeder, the flushing device, and the drive unit are all connected to a PLC controller, which is used to control the working status of the feeder, the flushing device, and the drive unit.
[0020] Optionally, the number of mineral processing units is set to two, and the sluices of the two mineral processing units are respectively a first sluice and a second sluice, which are arranged to overlap.
[0021] Optionally, the flushing devices of the two ore dressing units are a first flushing device and a second flushing device, respectively; the first flushing device includes a first guide rail and a first flusher, the first guide rail is disposed on the bottom outside of the second sluice and extends along the spiral trajectory of the second sluice, the first flusher is disposed on the first guide rail and can move along the first guide rail, and the first flusher is used to spray flushing water toward the inside of the first sluice; the second flushing device includes a second guide rail and a second flusher, the second guide rail is disposed on the bottom outside of the first sluice and extends along the spiral trajectory of the first sluice, the second flusher is disposed on the second guide rail and can move along the second guide rail, and the second flusher is used to spray flushing water toward the inside of the second sluice.
[0022] Beneficial effects:
[0023] The device for targeted enrichment of precious metals disclosed in this application includes a feeder and a beneficiation unit. The beneficiation unit includes a sluice, a flushing device, and a discharge device. The sluice is spiral-shaped and lined with cloth. The feeder is connected to the inlet of the sluice and is used to intermittently supply ore to the sluice at set intervals. The flushing device is located above the sluice and is used to spray flushing water into the sluice. The discharge device is located at the outlet of the sluice and is equipped with a concentrate outlet and a tailings outlet. A switching mechanism is installed inside the discharge device to switch the opening and closing states of the concentrate outlet and the tailings outlet. When the beneficiation unit is in the first working state, the feeder discharges ore into the sluice, the tailings outlet is open, and the concentrate outlet is closed. When the unit is in the second working state, the feeder stops discharging ore into the sluice, the flushing device sprays flushing water into the sluice, the concentrate outlet is open, and the tailings outlet is closed. This application extends the flow path of the ore in a limited space by setting the chute in a spiral shape, thereby prolonging the residence time of the ore on the chute, improving the separation efficiency while saving space and reducing infrastructure costs. By setting up a discharge device and switching mechanism, the timing of opening and closing of the concentrate discharge outlet and tailings discharge outlet can be reasonably controlled, thereby achieving efficient separation of concentrate and slurry and improving the efficiency of directional enrichment of precious metals. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the structure of a device for targeted enrichment of precious metals according to an embodiment of this application;
[0026] Figure 2 This is a schematic diagram of the baffle in the first working position in the device for targeted enrichment of precious metals according to an embodiment of this application;
[0027] Figure 3 This is a schematic diagram of the baffle in the second working position in the device for targeted enrichment of precious metals according to an embodiment of this application.
[0028] Explanation of reference numerals in the attached figures:
[0029] 1. Feeder; 2. Sluice; 2a. First sluice; 2b. Second sluice; 3a. First flushing device; 31a. First guide rail; 32a. First flusher; 4. Discharge device; 4a. First discharge device; 4b. Second discharge device; 41. Concentrate outlet; 42. Tailings outlet; 5. Baffle; 6. Drive component. Detailed Implementation
[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0031] In related technologies, precious metal enrichment refers to the process of separating precious metals from other minerals in ore using physical or chemical methods, thereby concentrating them in a concentrate. The aim is to improve the grade of precious metals, facilitating subsequent smelting and purification. Mineral processing is the primary step in precious metal enrichment, removing most impurities from the ore and concentrating the precious metals in the concentrate. For example, gravity separation utilizes the density differences of minerals, using gravity to cause precious metal particles to settle, thus achieving enrichment.
[0032] The cloth sluice is a common gravity separation method for metal enrichment. Its bottom is lined with a rough-surfaced cloth or similar material. The slurry is fed evenly into the sluice, and under the combined action of water flow and gravity, the mineral particles in the slurry are separated according to their density differences. Lighter minerals are discharged with the water flow, while denser, heavier mineral particles are deposited on the lining material at the bottom. Traditional cloth sluices often employ a sloping design. Sloping cloth sluices typically have a steep slope and a high water flow velocity, resulting in a short residence time for heavy mineral particles on the sluice surface, preventing sufficient deposition and thus lower separation efficiency. To improve separation efficiency, multiple sluices need to be connected in series, leading to a large footprint and high infrastructure costs.
[0033] In view of this, embodiments of this application propose a device for the targeted enrichment of precious metals.
[0034] See Figure 1 A device for the directional enrichment of precious metals, comprising a feeder 1 and a mineral processing unit;
[0035] The mineral processing unit includes a sluice 2, a flushing device, and a discharge device 4;
[0036] The chute 2 is spiral in shape and is lined with cloth. The inlet end of the chute 2 is connected to the feeder 1, which is used to intermittently supply ore to the chute 2 according to a set time.
[0037] The flushing device is located above the chute 2 and is used to spray flushing water into the chute 2;
[0038] The discharge device 4 is located at the outlet end of the chute 2. The discharge device 4 is provided with a concentrate outlet 41 and a tailings outlet 42. The discharge device 4 is provided with a switching mechanism inside. The switching mechanism is used to switch the opening and closing states of the concentrate outlet 41 and the tailings outlet 42 to control the flow of the ore discharged from the chute 2 to the concentrate outlet 41 or the tailings outlet 42.
[0039] The mineral processing unit includes a first working state and a second working state. In the first working state, the feeder 1 discharges ore into the sluice 2, the tailings outlet 42 is opened, and the concentrate outlet 41 is closed. In the second working state, the feeder 1 stops discharging ore into the sluice 2, the flushing device sprays flushing water into the sluice 2, the concentrate outlet 41 is opened, and the tailings outlet 42 is closed.
[0040] For details, see Figure 1 The feeder 1 is located at the inlet end of the chute 2, that is... Figure 1The top of the sluice 2 shown is used to intermittently feed ore into the sluice 2. The sluice 2 is spirally shaped, and the ore can move along the spiral sluice 2 after entering it. The bottom of the sluice 2 is covered with cloth to provide resistance, so that the heavier concentrate is retained on the cloth, while the slurry that is not retained will flow along the sluice 2 under the action of gravity until it reaches the bottom of the sluice 2, that is, the outlet end of the sluice 2.
[0041] The discharge device 4 is located at the outlet end of the chute 2. The discharge device 4 is equipped with a concentrate discharge outlet 41 and a tailings discharge outlet 42. The discharge device 4 is equipped with a switching mechanism that can switch the opening and closing states of the concentrate discharge outlet 41 and the tailings discharge outlet 42, thereby controlling whether the ore discharged from the chute 2 is discharged through the concentrate discharge outlet 41 or the tailings discharge outlet 42.
[0042] The flushing device is located above the opening of the chute 2. When the flushing device is turned on, it can spray flushing water into the chute 2, so that the concentrate product left on the cloth is flushed to the bottom of the chute 2 by the impact of the water flow, and waits to be discharged.
[0043] The mineral processing unit has two different operating states. Specifically, when the feeder 1 uniformly feeds the ore into the sluice 2 according to the set separation time, the flushing device does not work. At this time, the tailings outlet 42 is opened and the concentrate outlet 41 is closed by the switching mechanism. As the ore moves in the sluice 2, the heavier concentrate is left on the feed cloth, while the slurry flows to the outlet end of the sluice 2, enters the discharge device 4, and is discharged through the tailings outlet 42. At this time, the mineral processing unit is in the first operating state, namely the concentrate separation state. After the separation time ends, the feeder 1 stops feeding the ore into the sluice 2. The concentrate outlet 41 is opened and the tailings outlet 42 is closed by the switching mechanism. At the same time, the flushing device starts working and sprays flushing water into the sluice 2. With the flushing of the water flow, the concentrate is flushed to the outlet end of the sluice 2, enters the discharge device 4, and is discharged through the concentrate outlet 41. At this time, the mineral processing unit is in the second operating state, namely the concentrate collection state.
[0044] By configuring the chute 2 in a spiral shape, compared to the traditional inclined shape, the flow path of the ore is greatly extended within a limited space, thereby prolonging the residence time of the ore on the chute 2. This allows heavier concentrates to settle fully on the material distribution at the bottom of the chute, improving separation efficiency, saving space, and helping to reduce infrastructure costs. By setting up the discharge device 4 and the switching mechanism, the opening and closing timing of the concentrate discharge outlet 41 and the tailings discharge outlet 42 can be rationally controlled, thereby achieving efficient separation of concentrate and slurry and improving the efficiency of directional enrichment of precious metals.
[0045] Optionally, the switching mechanism includes a baffle 5 and a driving member 6; the outlet end of the chute 2 extends into the interior of the discharge device 4, and the concentrate outlet 41 and the tailings outlet 42 are respectively located on both sides of the discharge device 4; the baffle 5 is rotatably disposed at the outlet end of the chute 2 and is located between the concentrate outlet 41 and the tailings outlet 42; the driving member 6 is connected to the baffle 5 and is used to drive the baffle 5 to rotate to a first working position so that the ore discharged from the chute 2 flows along the baffle 5 to the tailings outlet 42, or drive the baffle 5 to rotate to a second working position so that the ore discharged from the chute 2 flows along the baffle 5 to the concentrate outlet 41.
[0046] Specifically, the outlet end of the sluice 2 extends into the interior of the discharge device 4, with the concentrate outlet 41 and tailings outlet 42 located on opposite sides of the discharge device 4. The switching mechanism includes a baffle 5 and a drive component 6. The baffle 5 is located at the outlet end of the sluice 2 and can receive the ore discharged from the sluice 2. The baffle 5 is situated between the concentrate outlet 41 and the tailings outlet 42 and is rotatably mounted in the discharge device 4. The drive component 6 is connected to the baffle 5 and can drive the baffle 5 to rotate. The rotation of the baffle 5 changes the opening and closing states of the concentrate outlet 41 and the tailings outlet 42. Specifically, when the baffle 5 is rotated to the first working position, the tailings outlet 42 is opened and the concentrate outlet 41 is closed. At this time, the slurry discharged from the chute 2 can flow along the baffle 5 to the tailings outlet 42. When the baffle is rotated to the second working position, the concentrate outlet 41 is opened and the tailings outlet 42 is closed. At this time, the concentrate discharged from the chute 2 can flow along the baffle 5 to the concentrate outlet 41.
[0047] Optionally, the middle part of the baffle 5 is rotatably connected to the discharge device 4, the first end of the baffle 5 is close to the concentrate discharge outlet 41, and the second end of the baffle 5 is close to the tailings discharge outlet 42; when the baffle 5 is rotated to the first working position, the first end of the baffle 5 is higher than the second end of the baffle 5, the first end of the baffle 5 blocks the concentrate discharge outlet 41, and the second end of the baffle 5 leads to the tailings discharge outlet 42; when the baffle 5 is rotated to the second working position, the second end of the baffle 5 is higher than the first end of the baffle 5, the second end of the baffle 5 blocks the tailings discharge outlet 42, and the first end of the baffle 5 leads to the concentrate discharge outlet 41.
[0048] See Figure 2 In this embodiment, the middle part of the baffle 5 is rotatably connected to the discharge device 4, and the first end of the baffle 5 is also... Figure 2 The left end of the baffle 5 shown is near the tailings outlet 42, and the second end of the baffle 5 is also... Figure 2 The right end of the baffle 5 shown is near the concentrate outlet 41. Figure 2This is a schematic diagram of the baffle 5 in the first working position. At this time, the first end of the baffle 5 is higher than the second end of the baffle 5. The first end of the baffle 5 blocks the concentrate outlet 41, thus closing the concentrate outlet 41. The second end of the baffle 5 leads to the tailings outlet 42, which is opened. Thus, the slurry discharged from the chute 2 can flow down the inclined slope of the baffle 5 to the tailings outlet 42 and finally be discharged through the tailings outlet 42.
[0049] Figure 3 This is a schematic diagram of the baffle 5 in the second working position. At this time, the second end of the baffle 5 is higher than the first end of the baffle 5, and the second end of the baffle 5 blocks the tailings outlet 42, thus closing the tailings outlet 42. Meanwhile, the first end of the baffle 5 leads to the concentrate outlet 41, which is opened. As a result, the concentrate discharged from the chute 2 can flow down the inclined slope of the baffle 5 to the concentrate outlet 41 and finally be discharged through the concentrate outlet 41, thus achieving concentrate collection.
[0050] Optionally, the width of the baffle 5 is greater than or equal to the width of the outlet end of the chute 2.
[0051] Specifically, the width of the baffle 5 is greater than or equal to the width of the outlet end of the sluice 2, which ensures that all the slurry or concentrate discharged from the sluice 2 falls onto the baffle 5 and then enters the corresponding outlet along the baffle 5, thus preventing the slurry or concentrate from leaking directly from the edge of the sluice 2 and falling into the wrong outlet, which would affect the directional enrichment effect.
[0052] Optionally, the driving component 6 includes a hydraulic cylinder, the cylinder body of which is installed in the discharge device 4, and the end of the piston rod of the hydraulic cylinder is connected to the end of the baffle 5.
[0053] Specifically, in this embodiment, the driving component 6 can be a hydraulic cylinder. The cylinder body of the hydraulic cylinder is hinged within the discharge device 4, and the end of the piston rod of the hydraulic cylinder is hinged to the end of the baffle 5. When the piston rod of the hydraulic cylinder extends or shortens, it can push or pull the end of the baffle 5 to move up and down, thereby causing the baffle 5 to rotate around its central rotation connection point and change the working position of the baffle 5. In practical applications, two hydraulic cylinders can be provided. The connection points between the piston rods of the two hydraulic cylinders and the baffle 5 can be located on both sides of the end of the baffle 5 to avoid affecting the flow of ore along the baffle 5.
[0054] In other embodiments, the drive element 6 may also be a cylinder or an electric actuator, or a motor.
[0055] Optionally, the feeder 1, the flushing device, and the drive unit 6 are all connected to a PLC controller, which is used to control the working status of the feeder 1, the flushing device, and the drive unit 6.
[0056] Specifically, to facilitate control of the working status of the mineral processing unit, in this embodiment, the feeder 1, the flushing device, and the drive unit 6 are all connected to the PLC controller for interlocking control. Specifically, when the feeder 1 feeds ore into the sluice 2, the flushing device is not working, and simultaneously the drive unit 6 drives the baffle 5 to rotate to the first working position, opening the tailings outlet 42 and closing the concentrate outlet 41. At this time, the mineral processing unit is in the first working state, performing concentrate separation. When separation is completed and the feeder 1 stops feeding ore into the sluice 2, the drive unit 6 drives the baffle 5 to rotate to the second working position, opening the concentrate outlet 41 and closing the tailings outlet 42. At the same time, the flushing device starts working, spraying flushing water into the sluice 2. At this time, the mineral processing unit is in the second working state, performing concentrate collection.
[0057] In this embodiment, the interlocking control of the feeder 1, the flushing device and the drive unit 6 using a PLC controller is a well-known technique to those skilled in the art, and will not be described in detail here.
[0058] Optionally, the number of the mineral processing units is set to two, and the sluices 2 of the two mineral processing units are respectively the first sluice 2a and the second sluice 2b, which are arranged to overlap.
[0059] Specifically, such as Figure 1 As shown, in this embodiment, two ore dressing units are configured. Compared to a single ore dressing unit, the two units can alternately perform separation and collection operations, improving work efficiency. The sluices 2 of the two ore dressing units are a first sluice 2a and a second sluice 2b, respectively. The first sluice 2a and the second sluice 2b are arranged in an overlapping manner, which can improve space utilization, save space occupation, and help reduce infrastructure costs. The discharge devices 4 of the two ore dressing units are a first discharge device 4a and a second discharge device 4b, respectively, which are respectively arranged corresponding to the first sluice 2a and the second sluice 2b.
[0060] Optionally, the rinsing devices of the two ore dressing units are a first rinsing device 3a and a second rinsing device, respectively. The first rinsing device 3a includes a first guide rail 31a and a first rinser 32a. The first guide rail 31a is disposed on the outer side of the bottom of the second sluice 2b and extends along the spiral trajectory of the second sluice 2b. The first rinser 32a is disposed on the first guide rail 31a and can move along the first guide rail 31a. The first rinser 32a is used to spray rinsing water toward the interior of the first sluice 2a. The second rinsing device includes a second guide rail and a second rinser. The second guide rail is disposed on the outer side of the bottom of the first sluice 2a and extends along the spiral trajectory of the first sluice 2a. The second rinser is disposed on the second guide rail and can move along the second guide rail. The second rinser is used to spray rinsing water toward the interior of the second sluice 2b.
[0061] Specifically, in this embodiment, the first flushing device 3a includes a first guide rail 31a and a first flusher 32a. The first guide rail 31a is installed on the outer bottom of the second sluice 2b and extends along the spiral trajectory of the second sluice 2b. The first flusher 32a is slidably disposed on the first guide rail 31a and can move along the first guide rail 31a. The spray holes of the first flusher 32a face downwards. Since the spiral first sluice 2a and the second sluice 2b are arranged in an overlapping manner, the outer bottom of the second sluice 2b and the opening of the first sluice 2a are opposite each other. When the first flusher 32a moves along the first guide rail 31a on the outer bottom of the second sluice 2b and simultaneously starts spraying water, the flushing water is sprayed out towards the inside of the first sluice 2a through the spray holes of the first flusher 32a, thereby flushing the concentrate in the first sluice 2a.
[0062] Similarly, the second flushing device includes a second guide rail and a second flusher. The second guide rail is installed on the outer bottom of the first sluice 2a and extends along the spiral trajectory of the first sluice 2a. The second flusher is slidably mounted on the second guide rail and can move along the second guide rail. The water spray hole of the second flusher faces downward. Since the spiral first sluice 2a and the second sluice 2b are arranged in an overlapping manner, the outer bottom of the first sluice 2a and the opening of the second sluice 2b are opposite each other. When the second flusher moves along the second guide rail on the outer bottom of the first sluice 2a and simultaneously starts the water spraying operation, the flushing water is sprayed out through the water spray hole of the second flusher toward the interior of the second sluice 2b, thereby flushing the concentrate in the second sluice 2b.
[0063] With the above setup, the flusher can move along the guide rail while spraying flushing water. Compared with the method of directly flushing water from the top of the sluice 2, it can more accurately flush the concentrate distributed in various locations of the sluice 2, effectively reduce flushing dead corners, improve the flushing effect, and thus improve the efficiency of concentrate collection.
[0064] In this embodiment, for cases with two mineral processing units, a PLC controller can be used to control the two mineral processing units to alternately perform separation and collection operations. That is, when the first mineral processing unit is collecting, the second mineral processing unit is performing separation, and when the first mineral processing unit is performing separation, the second mineral processing unit is performing collection.
[0065] Specifically, the feeder 1 first feeds ore into the first sluice 2a according to the set separation time. The baffle 5 of the first beneficiation unit rotates to the first working position, and the first beneficiation unit is in the first working state, separating the concentrate. After the separation is completed, the feeder 1 stops feeding ore into the first sluice 2a, the baffle 5 of the first beneficiation unit rotates to the second working position, and the first flushing device 3a starts working to spray flushing water into the first sluice 2a. The first beneficiation unit is in the second working state, collecting the concentrate. At the same time, the feeder 1 feeds ore into the first sluice 2a according to the preset separation time. Ore is fed into the second sluice 2b. The baffle 5 of the second ore dressing unit rotates to the second working position, and the second ore dressing unit is in the first working state, separating the concentrate. After the separation of the second ore dressing unit is completed, the feeder 1 stops feeding ore into the second sluice 2b, the baffle 5 of the second ore dressing unit rotates to the second working position, the second flushing device starts working and sprays flushing water into the second sluice 2b, and the second ore dressing unit is in the second working state, collecting the concentrate. At the same time, the feeder 1 feeds ore into the first sluice 2a again, and the first ore dressing unit performs separation. This process is repeated alternately.
[0066] The equipment for targeted enrichment of precious metals provided in this application improves space utilization and separation efficiency, reduces infrastructure costs, and can achieve efficient separation of concentrate and slurry by reasonably controlling the opening and closing timing of concentrate outlet 41 and tailings outlet 42, thereby improving the efficiency of targeted enrichment of precious metals.
[0067] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0068] It should also be noted that, in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor should they be construed as indicating or implying relative importance. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. In the absence of further restrictions, an element defined by the phrase "includes a..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes the element.
[0069] The technical solutions provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand this application, and the content of this specification should not be construed as a limitation of this application. Furthermore, for those skilled in the art, there will be different forms of changes in the specific implementation methods and application scope based on this application. It is neither necessary nor possible to exhaustively list all implementation methods here, and obvious changes or modifications derived therefrom are still within the protection scope of this application.
Claims
1. A device for the targeted enrichment of precious metals, characterized in that, include: The ore feeder and the ore dressing unit, wherein the ore dressing unit includes a sluice, a flushing device and a discharge device; The chute is spiral-shaped and lined with fabric. The inlet end of the chute is connected to the feeder, which is used to intermittently supply ore to the chute at set intervals. The flushing device is located above the chute and is used to spray flushing water into the chute; The discharge device is located at the outlet end of the chute. The discharge device is provided with a concentrate outlet and a tailings outlet. The discharge device is provided with a switching mechanism inside. The switching mechanism is used to switch the opening and closing state of the concentrate outlet and the tailings outlet to control the flow of the ore discharged from the chute to the concentrate outlet or the tailings outlet. The mineral processing unit includes a first working state and a second working state; in the first working state, the feeder discharges ore into the sluice, the tailings outlet is opened, and the concentrate outlet is closed; in the second working state, the feeder stops discharging ore into the sluice, the flushing device sprays flushing water into the sluice, the concentrate outlet is opened, and the tailings outlet is closed.
2. The device for targeted enrichment of precious metals according to claim 1, characterized in that: The switching mechanism includes a baffle and a driving component; The outlet end of the chute extends into the interior of the discharge device, and the concentrate outlet and the tailings outlet are located on both sides of the discharge device, respectively; the baffle is rotatably disposed at the outlet end of the chute and is located between the concentrate outlet and the tailings outlet; The driving component is connected to the baffle and is used to drive the baffle to rotate to a first working position so that the ore discharged from the chute flows along the baffle to the tailings outlet, or to drive the baffle to rotate to a second working position so that the ore discharged from the chute flows along the baffle to the concentrate outlet.
3. The device for targeted enrichment of precious metals according to claim 2, characterized in that: The middle part of the baffle is rotatably connected to the discharge device, the first end of the baffle is close to the concentrate discharge outlet, and the second end of the baffle is close to the tailings discharge outlet; When the baffle is rotated to the first working position, the first end of the baffle is higher than the second end of the baffle, the first end of the baffle blocks the concentrate outlet, and the second end of the baffle leads to the tailings outlet; When the baffle is rotated to the second working position, the second end of the baffle is higher than the first end of the baffle, the second end of the baffle blocks the tailings outlet, and the first end of the baffle leads to the concentrate outlet.
4. The device for targeted enrichment of precious metals according to claim 2, characterized in that: The width of the baffle is greater than or equal to the width of the outlet end of the chute.
5. The device for targeted enrichment of precious metals according to claim 2, characterized in that: The driving component includes a hydraulic cylinder, the cylinder body of which is installed in the discharge device, and the end of the piston rod of the hydraulic cylinder is connected to the end of the baffle.
6. The device for targeted enrichment of precious metals according to claim 2, characterized in that: The feeder, the flushing device, and the drive unit are all connected to a PLC controller, which is used to control the working status of the feeder, the flushing device, and the drive unit.
7. The apparatus for targeted enrichment of precious metals according to any one of claims 1-6, characterized in that: The number of mineral processing units is set to two, and the sluices of the two mineral processing units are respectively the first sluice and the second sluice, which are arranged to overlap.
8. The device for targeted enrichment of precious metals according to claim 7, characterized in that: The rinsing devices of the two ore dressing units are a first rinsing device and a second rinsing device, respectively. The first flushing device includes a first guide rail and a first flusher. The first guide rail is disposed on the outer side of the bottom of the second chute and extends along the spiral trajectory of the second chute. The first flusher is disposed on the first guide rail and is movable along the first guide rail. The first flusher is used to spray flushing water toward the inside of the first chute. The second flushing device includes a second guide rail and a second flusher. The second guide rail is disposed on the outer side of the bottom of the first chute and extends along the spiral trajectory of the first chute. The second flusher is disposed on the second guide rail and is movable along the second guide rail. The second flusher is used to spray flushing water toward the interior of the second chute.