Sorting apparatus and milling system

Abstract

The utility model relates to a kind of sorting equipment and grinding system, the sorting equipment includes: sorting groove, nozzle, feeding device, first material taking device and second material taking device.The first area and second area are in sorting groove, the first area and second area are along the first direction arrangement, nozzle is communicated with sorting groove, nozzle is used to into sorting slurry into sorting groove, feeding device is located in the upside of sorting groove, feeding device is used to the material to be sorted by the first area to the direction of second area is inclined downward and is discharged into sorting groove, at least part of first material taking device is located in the bottom of first area, first material taking device is used to remove the steel ball in first area, at least part of second material taking device is located in the bottom of second area, second material taking device is used to remove the hard stone in second area.The sorting equipment of the utility model can effectively separate the steel ball mixed in hard stone, and is beneficial to improve the operation efficiency of hard stone crushing.

Description

Technical Field

[0001] This utility model relates to the field of mineral processing technology, specifically to a sorting device and a grinding system. Background Technology

[0002] With the development of large-scale mineral processing plants, the traditional "three-stage closed-circuit + ball mill" crushing and grinding process can no longer meet the production needs of current large-scale mineral processing plants. The semi-autogenous grinding process, with its large processing capacity and strong adaptability to raw ore, has gradually become the mainstream process for crushing and grinding operations in mineral processing. However, the semi-autogenous grinding process also has certain limitations. After the raw ore and steel balls are ground to a certain size, it is difficult to further grind them into critical particles (rocks) inside the mill. When a large amount of rock accumulates inside the mill, it will seriously affect the mill's processing capacity.

[0003] In related technologies, in order to reduce the impact of stubborn rocks on grinding operations, the stubborn rocks are often discharged from the mill and then processed by cone crushers or high-pressure roller mills. However, the above processing methods are difficult to remove the waste steel balls mixed in with the stubborn rocks, and the waste steel balls will also cause certain damage to the crushing equipment during the crushing process, thereby affecting the service life of the stubborn rock crushing equipment and increasing the production cost of enterprises. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of this utility model propose a sorting device that can effectively separate steel balls embedded in stubborn rocks, thereby improving the efficiency of stubborn rock crushing operations.

[0006] An embodiment of this utility model also proposes a grinding system.

[0007] The sorting device of this utility model includes: a sorting tank having a first zone and a second zone, the first zone and the second zone being arranged along a first direction orthogonal to the vertical direction of the sorting tank; a spray pipe communicating with the sorting tank and used to introduce sorting slurry into the sorting tank; a feeding device located on the upper side of the sorting tank and used to discharge the material to be sorted into the sorting tank at an angle downwards from the first zone to the second zone, wherein steel balls in the material to be sorted can fall into the first zone under their own weight and the action of the sorting slurry, and stubborn stones in the material to be sorted can fall into the second zone under their own weight and the action of the sorting slurry; a first picking device, at least part of which is located at the bottom of the first zone and used to pick up steel balls in the first zone; and a second picking device, at least part of which is located at the bottom of the second zone and used to pick up stubborn stones in the second zone.

[0008] According to the sorting equipment of this utility model, since the spray pipe can introduce sorting slurry into the sorting tank, a heavy medium sorting field can be formed in the sorting tank. When the feeding device discharges the material to be sorted into the sorting tank at an angle downwards from the first zone to the second zone, due to the difference in specific gravity between the stubborn rocks and the steel balls, the distances they move in the horizontal direction are also different. That is, the stubborn rocks, due to their lower specific gravity, move a greater distance than the steel balls, allowing the steel balls and stubborn rocks to separate along the first direction. Thus, the steel balls fall into the first zone, and the stubborn rocks fall into the second zone. The first material handling device can remove the steel balls from the first zone, and the second material handling device can remove the stubborn rocks from the second zone, thereby achieving effective separation of the steel balls and stubborn rocks, which is beneficial to improving the efficiency of the subsequent rock crushing process.

[0009] In some embodiments, the nozzle includes a first nozzle, the first nozzle having a first spray port connected to the sidewall of the sorting tank, the first spray port spraying the sorted slurry along the direction from the first zone to the second zone.

[0010] In some embodiments, the first nozzle extends along the first direction and is located below the feeding device.

[0011] In some embodiments, there are multiple first nozzles, and at least some of the first nozzles are arranged at intervals along the vertical direction.

[0012] In some embodiments, the nozzle includes a second nozzle, the second nozzle having a second nozzle nozzle in communication with the bottom wall of the sorting tank, the second nozzle nozzle spraying the sorted slurry out in a bottom-up direction.

[0013] In some embodiments, the second nozzle extends along the vertical direction.

[0014] In some embodiments, there are multiple second nozzles, with some second nozzles located below the first region and others located below the second region.

[0015] In some embodiments, the feeding device includes a feeding chute that extends obliquely downward along the direction from the first region to the second region, and the angle between the feeding chute and the horizontal direction is α, wherein 45°≤α<90°.

[0016] In some embodiments, the mass percentage concentration of the sorting slurry is between 60% and 80%.

[0017] In some embodiments, a partition is provided at the bottom of the sorting trough, and the partition is located between the first zone and the second zone.

[0018] In some embodiments, the bottom of the sorting tank is provided with a slurry outlet, which communicates with the second zone.

[0019] In some embodiments, the first material handling device includes a first transport scraper, at least a portion of which is disposed at the bottom of the first area, and the direction of movement of the first transport scraper is orthogonal to the first direction.

[0020] In some embodiments, the second material handling device includes a second transport scraper, at least a portion of which is disposed at the bottom of the second zone, and the direction of movement of the second transport scraper is orthogonal to the first direction.

[0021] Another embodiment of the grinding system of this utility model includes: a separation device, which is the separation device described in any one of the embodiments of this utility model; a semi-autogenous grinding hydrocyclone, which is connected to the nozzle, and the underflow of the hydrocyclone constitutes the separation slurry.

[0022] According to the grinding system of this utility model embodiment, since the nozzle can introduce sorting slurry into the sorting tank, a heavy media sorting field can be formed in the sorting tank. When the feeding device discharges the material to be sorted into the sorting tank at an angle downwards from the first zone to the second zone, due to the difference in specific gravity between the boulders and the steel balls, the distances they travel in the horizontal direction are also different. That is, the boulders, due to their lower specific gravity, travel a greater distance than the steel balls, allowing the steel balls and boulders to separate along the first direction. Thus, the steel balls fall into the first zone, and the boulders fall into the second zone. The first material handling device can remove the steel balls from the first zone, and the second material handling device can remove the boulders from the second zone, thereby achieving effective separation of the steel balls and boulders and improving the efficiency of boulder crushing.

[0023] In addition, since the semi-autogenous hydrocyclone is connected to the nozzle, the underflow of the semi-autogenous hydrocyclone constitutes the separation slurry. Therefore, after the underflow of the hydrocyclone is used as the separation slurry, it can be returned to the next process without affecting the subsequent grinding system. This is conducive to realizing the continuous production operation of steel ball separation, rock crushing and subsequent grinding system. Attached Figure Description

[0024] Figure 1 This is a side view of the sorting device according to an embodiment of the present invention.

[0025] Figure 2 yes Figure 1 A magnified view of A in the middle.

[0026] Figure 3 This is a top view of the sorting device according to an embodiment of the present utility model.

[0027] Figure label:

[0028] 1. Sorting tank; 11. First zone; 12. Second zone; 13. Slurry outlet;

[0029] 2. Nozzle; 21. First nozzle; 22. Second nozzle;

[0030] 3. Feeding device; 31. Feeding chute;

[0031] 4. First material handling device; 41. First conveying scraper;

[0032] 5. Second material handling device; 51. Second conveying scraper;

[0033] 6. Partition; 61. Conical part; 611. First conical surface; 612. Second conical surface. Detailed Implementation

[0034] 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.

[0035] The following is a reference appendix. Figures 1 to 3 This invention describes a sorting device and a grinding system according to embodiments of the present invention.

[0036] like Figures 1 to 3 As shown, the sorting device of this utility model embodiment includes: a sorting tank 1, a spray pipe 2, a feeding device 3, a first material handling device 4, and a second material handling device 5.

[0037] The sorting tank 1 has a first zone 11 and a second zone 12, and the first zone 11 and the second zone 12 are along a first direction (e.g., Figure 1 The materials are arranged in a front-to-back direction (within the sorting tank 1), with the first direction orthogonal to the vertical direction of the sorting tank 1. The nozzle 2 is connected to the sorting tank 1 and is used to introduce the sorting slurry into the sorting tank 1. The feeding device 3 is located on the upper side of the sorting tank 1 and is used to feed the material to be sorted (i.e., the mixture of shale and steel balls) from the first zone 11 to the second zone 12 (e.g., ...). Figure 1 The material is discharged into the sorting tank 1 at an angle from front to back. The steel balls in the material to be sorted fall into the first zone 11 under their own weight and the action of the sorting slurry, while the stubborn rocks in the material to be sorted fall into the second zone 12 under their own weight and the action of the sorting slurry.

[0038] At least a portion of the first material handling device 4 is located at the bottom of the first zone 11, and the first material handling device 4 is used to remove steel balls from the first zone 11. At least a portion of the second material handling device 5 is located at the bottom of the second zone 12, and the second material handling device 5 is used to remove stubborn rocks from the second zone 12.

[0039] According to the sorting equipment of this utility model embodiment, since the spray pipe 2 can introduce sorting slurry into the sorting tank 1, a heavy medium sorting field can be formed in the sorting tank 1. When the feeding device 3 discharges the material to be sorted into the sorting tank 1 at an angle downward from the first zone 11 to the second zone 12, due to the difference in specific gravity between the stubborn stone and the steel ball, the distance they move in the horizontal direction is also different. That is, the stubborn stone moves a farther distance than the steel ball because of its lower specific gravity, so that the steel ball and the stubborn stone can be separated in the first direction. Thus, the steel ball will fall into the first zone 11, and the stubborn stone will fall into the second zone 12. The first material removal device 4 can remove the steel ball in the first zone 11, and the second material removal device 5 can remove the stubborn stone in the second zone 12, so as to achieve effective separation of steel ball and stubborn stone, which is beneficial to improving the efficiency of stubborn stone crushing in subsequent processes.

[0040] Understandably, since the sorting slurry is a liquid and the slurry medium is relatively heavy, when the sorting slurry is introduced into the sorting tank 1, it creates a heavy medium sorting field within the tank. Due to the different specific gravities of the rocks and steel balls, they travel different distances along the first direction. Therefore, when the material to be sorted is thrown into the sorting tank 1, the steel balls, due to their higher specific gravity, travel a shorter distance and fall into the first zone 11; the rocks, due to their lower specific gravity, travel a longer distance and fall into the second zone 12. Furthermore, the heavy medium sorting field formed by the sorting slurry slows down the falling speed of the steel balls and rocks, thus providing sufficient time for them to separate along the first direction.

[0041] The separation equipment of this utility model uses the difference in specific gravity between steel balls and pebbles to separate them. The separation process is not affected by the size of the steel balls. The separation equipment occupies a small area, requires few auxiliary equipment, has little impact on the grinding operation system, is easy to implement in industrial applications, and has high separation efficiency between pebbles and steel balls.

[0042] Optionally, such as Figure 1 As shown, the nozzle 2 includes a first nozzle 21, the first nozzle 21 of which is connected to the side wall of the sorting tank 1. The first nozzle sprays the sorted slurry along the direction from the first zone 11 to the second zone 12. By arranging the first nozzle 21 in the above manner, the sorting device of this embodiment can both create a stable turbulent heavy medium sorting field within the sorting tank 1 and provide lateral movement (e.g., for rocks and steel balls) to the rocks. Figure 1 The force of the movement (from front to back) helps the rock and steel ball separate in the front-to-back direction.

[0043] like Figure 1 As shown, the first nozzle 21 extends along a first direction and is located below the feeding device 3. It is understood that the sorting slurry ejected from the first nozzle 21 can flow laterally to make the heavy media sorting field within the sorting tank 1 more stable. Furthermore, since the first nozzle 21 is located below the feeding device 3, the sorting slurry ejected from the first nozzle 21 can impact most of the material falling from the feeding device 3, further improving the sorting effect of steel balls and stubborn rocks.

[0044] For example, such as Figure 1 As shown, there are multiple first nozzles 21, and at least some of the first nozzles 21 are arranged at intervals in the vertical direction. This makes the flow velocity of the heavy medium separation field in the separation tank 1 generally consistent at various positions in the vertical direction, which further improves the separation effect of steel balls and stubborn rocks.

[0045] Optionally, such as Figure 1As shown, the nozzle 2 includes a second nozzle 22, the second nozzle of which is connected to the bottom wall of the sorting tank 1. The second nozzle sprays the sorting slurry from bottom to top. Because the second nozzle sprays the sorting slurry from bottom to top, it slows down the falling speed of the steel balls and rocks, thus providing sufficient time for the steel balls and rocks to separate in the first direction, and preventing the slurry from settling in the tank.

[0046] With the combined action of the first nozzle 21 and the second nozzle 22, a stable heavy medium separation field can be formed in the sorting tank 1, and the mixture of rock and steel balls can be ensured to move along the first direction (from front to back) with a certain initial velocity.

[0047] For example, such as Figure 1 As shown, the second nozzle 22 extends in the vertical direction. This allows the sorting slurry ejected from the second nozzle 22 to move vertically from bottom to top, thereby slowing down the falling speed of the steel balls and rocks and providing sufficient time for the steel balls and rocks to separate in the first direction.

[0048] Optionally, such as Figure 1 As shown, there are multiple second nozzles 22, with some second nozzles 22 located below the first zone 11 and others located below the second zone 12. This allows the slurry sprayed from the second nozzles 22 to be more uniform, making the heavy media separation field in the separation tank 1 more stable, and preventing the slurry from settling into the separation tank 1.

[0049] For example, the multiple second nozzles 22 can be arranged in geometric shapes such as triangles, rectangles, and rhombuses.

[0050] It is understandable that nozzle 2 can also be replaced by similar equipment that can form a stable heavy media separation field, such as a high-pressure spray gun, a vibrating screen plate, or a vibrating diaphragm.

[0051] Optionally, such as Figure 1 and Figure 2 As shown, the feeding device 3 includes a feeding chute 31, which extends downward at an incline along the direction from the first zone 11 to the second zone 12. The angle between the feeding chute 31 and the horizontal direction is α, where 45°≤α<90°. It can be understood that the material to be sorted (a mixture of stubborn rocks and steel balls) can slide obliquely into the sorting tank 1 along the extension direction of the feeding chute 31. Because the feeding chute 31 has an angle α with the horizontal direction, the mixture of stubborn rocks and steel balls falling into the sorting tank 1 can have a certain initial velocity along the first direction, ensuring that the steel balls and stubborn rocks can form a clear dividing zone along the first direction.

[0052] For example, α can be 45°, 50°, 55°, 60°, 65°, 70°, or 75°.

[0053] When the sorting equipment is working, the feed chute 31 is inclined at a certain angle to feed the mixture of pebbles and steel balls into the sorting tank 1. Under the action of their own gravity, the buoyancy of the heavy medium in the sorting tank 1 and the transverse slurry flow, the steel balls and pebbles move along different trajectories. Because the steel balls have a higher specific gravity, they travel a shorter distance in the sorting tank 1, while the pebbles have a lower specific gravity, they travel a longer distance in the sorting tank 1, thereby achieving effective separation of steel balls and pebbles.

[0054] Optionally, the mass percentage concentration of the sorting slurry is between 60% and 80%. This allows a stable heavy media sorting field to be formed within the sorting tank 1, resulting in better sorting effects for steel balls and stubborn rocks.

[0055] For example, the mass percentage concentration of the sorting slurry can be 60%, 65%, 70%, 75%, or 80%.

[0056] Optionally, such as Figure 1 and Figure 2 As shown, a partition 6 is provided at the bottom of the sorting tank 1, and the partition 6 is located between the first zone 11 and the second zone 12. It can be understood that the lower part of the partition 6 is connected to the bottom of the sorting tank 1, and the partition 6 can prevent the steel balls in the first zone 11 and the stubborn rocks in the second zone 12 from mixing. In other words, the partition 6 can prevent stubborn rocks from being mixed into the first zone 11 and steel balls from being mixed into the second zone 12.

[0057] It should be noted that the position and height of the partition 6 must ensure that the smallest steel ball does not enter the second zone 12, while also ensuring that both the stubborn rock and the steel ball enter their respective transport areas.

[0058] For example, the material of partition 6 can be steel, plastic or rubber.

[0059] For example, such as Figure 2 As shown, the top of the partition 6 has a conical portion 61, which gradually tapers from bottom to top. The conical portion 61 has a first conical surface 611 and a second conical surface 612. The first conical surface 611 and the second conical surface 612 are respectively arranged on both sides of the partition 6 along a first direction. The first conical surface 611 gradually extends towards the first material handling device 4 from top to bottom, so that the steel balls in the first area 11 can slide into the first material handling device 4 under the action of the first conical surface 611, thereby reducing the probability of steel balls accumulating at the bottom of the first area 11.

[0060] Similarly, the second conical surface 612 gradually extends towards the second material handling device 5 from top to bottom, so that the stubborn stones in the second zone 12 can slide into the second material handling device 5 under the action of the second conical surface 612, thereby reducing the probability of stubborn stones accumulating at the bottom of the second zone 12.

[0061] Optionally, such as Figure 1 As shown, the bottom of the sorting tank 1 is provided with a slurry outlet 13, which is connected to the second zone 12. Thus, the excess slurry in the sorting tank 1 is discharged through the slurry outlet 13 into the next operation system.

[0062] Optionally, such as Figure 1 and Figure 3 As shown, the first material handling device 4 includes a first transport scraper 41, at least a portion of which is located at the bottom of the first zone 11. The direction of movement of the first transport scraper 41 is orthogonal to a first direction. It is understood that the first transport scraper 41 can discharge steel balls from the bottom of the first zone 11 into the sorting tank 1, enabling the sorting equipment to operate continuously. A portion of the first transport scraper 41 is located at the bottom of the first zone 11, and another portion of the first transport scraper 41 extends upward and protrudes from the upper opening of the first zone 11 to discharge steel balls from the first zone 11.

[0063] like Figure 3 As shown, the conveying direction of the first transport scraper 41 extends generally in the left-right direction. For example, the first transport scraper 41 can convey steel balls in a right-to-left direction. For the first transport scraper 41, the distance between two adjacent scrapers is greater than the maximum size of the steel ball.

[0064] Optionally, such as Figure 1 and Figure 3 As shown, the second material handling device 5 includes a second transport scraper 51, at least a portion of which is disposed at the bottom of the second zone 12, and the movement direction of the second transport scraper 51 is orthogonal to the first direction.

[0065] Understandably, the second transport scraper 51 can discharge the stubborn stones at the bottom of the second zone 12 into the sorting trough 1 so that the sorting equipment can operate continuously. A portion of the second transport scraper 51 is located at the bottom of the second zone 12, and another portion of the second transport scraper 51 extends upward and protrudes from the upper opening of the second zone 12 to discharge the stubborn stones in the second zone 12.

[0066] like Figure 3 As shown, the conveying direction of the second transport scraper 51 extends generally in the left-right direction. For example, the second transport scraper 51 can convey rocks in a left-to-right direction. For the second transport scraper 51, the distance between two adjacent scrapers is greater than the maximum size of the rocks.

[0067] It should be noted that the direction in which the first transport scraper 41 transports the steel balls and the direction in which the second transport scraper 51 transports the stones can be in the same direction or in opposite directions.

[0068] In other examples, the first material handling device 4 and the second material handling device 5 can be other transportation equipment such as bucket elevators and belt conveyors.

[0069] The material of its sorting tank 1 can be steel, plastic, PTFE, wood, or other materials that can achieve the same function.

[0070] The front and rear lengths of sorting tank 1 must be sufficient to allow the steel ball and the rock to form a clear boundary zone when moving horizontally. The depth of sorting tank 1 must be sufficient to allow for the time required for the steel ball and the rock to form a clear boundary horizontally, as well as the distance required for the mineral to move vertically.

[0071] The inner wall of sorting tank 1 can be lined with anti-corrosion materials such as rubber or asphalt.

[0072] Optionally, the separating slurry can be the underflow of a semi-autogenous hydrocyclone, or it can be other media or organic solvents that do not affect the operation of the grinding system.

[0073] The sorting equipment of this embodiment does not require grading of the hard stones. After the hard stones are discharged from the semi-autogenous mill, they pass through a linear vibrating screen and a feed chute 31 and fall directly into the sorting tank 1. The first material handling device 4 and the second material handling device 5 can automatically return the sorted hard stones and steel balls to the grinding system, thereby realizing continuous production operations of steel ball sorting, hard stone crushing, and subsequent grinding systems. Furthermore, the sorting equipment of this embodiment can use the underflow of the semi-autogenous mill hydrocyclone as the sorting medium, without the need for an external weighting medium configuration and recovery system. After the hydrocyclone underflow has been used as the medium, it is directly returned to the subsequent ball mill system, without affecting the subsequent grinding system.

[0074] Another embodiment of the grinding system of this utility model includes: a separation device and a semi-autogenous grinding hydrocyclone (not shown). The separation device is the separation device of this utility model. The semi-autogenous grinding hydrocyclone is connected to the nozzle 2. The underflow of the hydrocyclone constitutes the separation slurry.

[0075] According to the grinding system of this utility model embodiment, since the nozzle 2 can introduce sorting slurry into the sorting tank 1, a heavy media sorting field can be formed in the sorting tank 1. When the feeding device 3 discharges the material to be sorted into the sorting tank 1 at an angle downward from the first zone 11 to the second zone 12, due to the difference in specific gravity between the boulders and the steel balls, the distances they travel in the horizontal direction are also different. That is, the boulders, due to their lower specific gravity, travel a greater distance than the steel balls, allowing the steel balls and boulders to separate along the first direction. Thus, the steel balls fall into the first zone 11, and the boulders fall into the second zone 12. The first material removal device 4 can remove the steel balls from the first zone 11, and the second material removal device 5 can remove the boulders from the second zone 12, thereby achieving effective separation of the steel balls and boulders and improving the efficiency of boulder crushing.

[0076] In addition, since the semi-autogenous hydrocyclone is connected to the nozzle 2, the underflow of the semi-autogenous hydrocyclone constitutes the separation slurry. Therefore, after the underflow of the hydrocyclone is used as the separation slurry, it can be returned to the next process without affecting the subsequent grinding system. This is conducive to realizing the continuous production operation of steel ball separation, rock crushing and subsequent grinding system.

[0077] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0078] Furthermore, the terms "first" and "second" are used for descriptive purposes only 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A sorting device, characterized in that, include: The sorting trough (1) has a first area (11) and a second area (12) inside. The first area (11) and the second area (12) are arranged along a first direction, which is orthogonal to the vertical direction of the sorting trough (1). The nozzle (2) is connected to the sorting tank (1) and is used to introduce sorting slurry into the sorting tank (1); Feeding device (3) is located on the upper side of the sorting tank (1). The feeding device (3) is used to discharge the material to be sorted into the sorting tank (1) at an angle downward from the first zone (11) to the second zone (12). The steel balls in the material to be sorted can fall into the first zone (11) under their own weight and the action of the sorting slurry. The stubborn stones in the material to be sorted can fall into the second zone (12) under their own weight and the action of the sorting slurry. A first material handling device (4), at least a portion of which is located at the bottom of the first area (11), is used to remove steel balls from the first area (11). A second material handling device (5), at least a portion of which is located at the bottom of the second zone (12), is used to remove the stubborn rocks in the second zone (12).

2. The sorting equipment according to claim 1, characterized in that, The nozzle (2) includes a first nozzle (21), the first nozzle (21) of which is connected to the side wall of the sorting tank (1), and the first nozzle sprays the sorted slurry along the direction from the first zone (11) to the second zone (12).

3. The sorting equipment according to claim 2, characterized in that, The first nozzle (21) extends along the first direction and is located below the feeding device (3); And / or, there are multiple first nozzles (21), and at least some of the first nozzles (21) are arranged at intervals along the vertical direction.

4. The sorting equipment according to claim 1, characterized in that, The nozzle (2) includes a second nozzle (22), the second nozzle (22) of which is connected to the bottom wall of the sorting tank (1), and the second nozzle sprays the sorted slurry out in a downward direction.

5. The sorting equipment according to claim 4, characterized in that, The second nozzle (22) extends along the vertical direction; And / or, there are multiple second nozzles (22), with some second nozzles (22) located below the first region (11) and others located below the second region (12).

6. The sorting equipment according to any one of claims 1-5, characterized in that, The feeding device (3) includes a feeding chute (31), which extends downward at an inclination along the direction from the first region (11) to the second region (12), and the angle between the feeding chute (31) and the horizontal direction is α, wherein 45°≤α<90°.

7. The sorting equipment according to any one of claims 1-5, characterized in that, The mass percentage concentration of the sorting slurry is between 60% and 80%.

8. The sorting equipment according to any one of claims 1-5, characterized in that, The bottom of the sorting trough (1) is provided with a partition (6), which is located between the first area (11) and the second area (12); And / or, the bottom of the sorting tank (1) is provided with a slurry outlet (13), which is connected to the second zone (12).

9. The sorting equipment according to any one of claims 1-5, characterized in that, The first material handling device (4) includes a first transport scraper (41), at least a portion of which is disposed at the bottom of the first area (11), and the direction of movement of the first transport scraper (41) is orthogonal to the first direction. And / or, the second material handling device (5) includes a second transport scraper (51), at least a portion of which is disposed at the bottom of the second zone (12), and the direction of movement of the second transport scraper (51) is orthogonal to the first direction.

10. A grinding system, characterized in that, include: The sorting device is the sorting device according to any one of claims 1-9; A semi-autogenous hydrocyclone is connected to the nozzle (2), and the underflow of the hydrocyclone constitutes the sorting slurry.

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